(svn r1407) -Codechange: changed a lot around _stations, _vehicles, _towns and _industries

(in prepare of dynamic arrays): - DEREF_XXX is changed into GetXXX - All direct call are directed via GetXXX - struct Industry has now an index-field - ENUM'd some stuff - Replaced home built loops with FOR_ALL_XXX - Added _stations_size, _vehicles_size, ... which gives the length of the array (which will be dynamic in the near future) - Changed lengtof(XXX) to _XXX_size (e.g. _stations_size) - Removed all endof(XXX) (because mostly it was part of a FOR_ALL_XXX) - Made the sort-functions of all 4 dynamic - Made all 4 Initialize functions more of the same - Some minor tab-fixing and stuff (tnx to Tron for proof-reading my 100kb patch ;)) Note for all: please do NOT directly call _stations, _vehicles, _towns and _industries, but use the right wrapper to access them. Thank you. Ps: please also do not use 'v++', where v is of type Vehicle *.
author: truelight <truelight@openttd.org> 2005-01-06 22:31:58 +0000
committer: truelight <truelight@openttd.org> 2005-01-06 22:31:58 +0000
commit: 63e97754fbf907cfefd277087bfbac5e0d4434e8 (patch)
tree: 254702245ba43d006f4823111d0c2c592fb701ca
parent: a4111363c0def2ccec66ef28b5e8169e8a2df2f0 (diff)
download: openttd-63e97754fbf907cfefd277087bfbac5e0d4434e8.tar.xz
35 files changed, 567 insertions, 412 deletions
diff --git a/ai.c b/ai.c
index 0c647cf37..9ca11cc70 100644
--- a/ai.c
+++ b/ai.c
@@ -69,10 +69,11 @@ static void AiCase1(Player *p)
 static void AiStateVehLoop(Player *p)
 {
 	Vehicle *v;
+	uint index;
 
-	v = p->ai.cur_veh == NULL ? _vehicles : p->ai.cur_veh+1;
+	index = (p->ai.cur_veh == NULL) ? 0 : p->ai.cur_veh->index + 1;
 
-	for (;v != endof(_vehicles); v++) {
+	FOR_ALL_VEHICLES_FROM(v, index) {
 		if (v->type == 0 || v->owner != _current_player)
 			continue;
 
@@ -297,7 +298,7 @@ static void AiHandleReplaceTrain(Player *p)
 		if (DoCommandByTile(0, v->index, 2, DC_EXEC, CMD_SELL_RAIL_WAGON) != CMD_ERROR &&
 			 DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_RAIL_VEHICLE) != CMD_ERROR) {
 			veh = _new_train_id;
-			AiRestoreVehicleOrders(&_vehicles[veh], orderbak);
+			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_TRAIN);
 
 			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
@@ -325,7 +326,7 @@ static void AiHandleReplaceRoadVeh(Player *p)
 		if (DoCommandByTile(0, v->index, 0, DC_EXEC, CMD_SELL_ROAD_VEH) != CMD_ERROR &&
 			 DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_ROAD_VEH) != CMD_ERROR) {
 			veh = _new_roadveh_id;
-			AiRestoreVehicleOrders(&_vehicles[veh], orderbak);
+			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_ROADVEH);
 
 			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
@@ -353,7 +354,7 @@ static void AiHandleReplaceAircraft(Player *p)
 		if (DoCommandByTile(0, v->index, 0, DC_EXEC, CMD_SELL_AIRCRAFT) != CMD_ERROR &&
 			 DoCommandByTile(tile, veh, 0, DC_EXEC, CMD_BUILD_AIRCRAFT) != CMD_ERROR) {
 			veh = _new_aircraft_id;
-			AiRestoreVehicleOrders(&_vehicles[veh], orderbak);
+			AiRestoreVehicleOrders(GetVehicle(veh), orderbak);
 			DoCommandByTile(0, veh, 0, DC_EXEC, CMD_START_STOP_AIRCRAFT);
 
 			DoCommandByTile(0, veh, _ai_service_interval, DC_EXEC, CMD_CHANGE_TRAIN_SERVICE_INT);
@@ -413,12 +414,12 @@ typedef struct FoundRoute {
 } FoundRoute;
 
 static Town *AiFindRandomTown() {
-	Town *t = DEREF_TOWN(RandomRange(_total_towns));
+	Town *t = GetTown(RandomRange(_total_towns));
 	return (t->xy != 0) ? t : NULL;
 }
 
 static Industry *AiFindRandomIndustry() {
-	Industry *i = DEREF_INDUSTRY(RandomRange(_total_industries));
+	Industry *i = GetIndustry(RandomRange(_total_industries));
 	return (i->xy != 0) ? i : NULL;
 }
 
@@ -447,16 +448,16 @@ static void AiFindSubsidyIndustryRoute(FoundRoute *fr)
 		return;
 	fr->cargo = cargo;
 
-	fr->from = from = DEREF_INDUSTRY(s->from);
+	fr->from = from = GetIndustry(s->from);
 
 	if (cargo == CT_GOODS || cargo == CT_FOOD) {
-		to_tow = DEREF_TOWN(s->to);
+		to_tow = GetTown(s->to);
 		if (to_tow->population < (uint32)(cargo == CT_FOOD ? 200 : 900))
 			return; // error
 		fr->to = to_tow;
 		to_xy = to_tow->xy;
 	} else {
-		to_ind = DEREF_INDUSTRY(s->to);
+		to_ind = GetIndustry(s->to);
 		fr->to = to_ind;
 		to_xy = to_ind->xy;
 	}
@@ -485,8 +486,8 @@ static void AiFindSubsidyPassengerRoute(FoundRoute *fr)
 		return;
 	fr->cargo = s->cargo_type;
 
-	fr->from = from = DEREF_TOWN(s->from);
-	fr->to = to = DEREF_TOWN(s->to);
+	fr->from = from = GetTown(s->from);
+	fr->to = to = GetTown(s->to);
 
 	// They must be big enough
 	if (from->population < 400 || to->population < 400)
@@ -1416,7 +1417,7 @@ static void AiWantOilRigAircraftRoute(Player *p)
 		t = AiFindRandomTown();
 		if (t != NULL) {
 			// Find a random oil rig industry
-			in = DEREF_INDUSTRY(RandomRange(_total_industries));
+			in = GetIndustry(RandomRange(_total_industries));
 			if (in != NULL && in->type == IT_OIL_RIG) {
 				if (GetTileDist(t->xy, in->xy) < 60)
 					break;
@@ -2412,7 +2413,7 @@ handle_nocash:
 	loco_id = _new_train_id;
 
 	// Sell a vehicle if the train is double headed.
-	v = &_vehicles[loco_id];
+	v = GetVehicle(loco_id);
 	if (v->next != NULL) {
 		i = p->ai.wagon_list[p->ai.num_wagons*2-2];
 		p->ai.wagon_list[p->ai.num_wagons*2-2] = INVALID_VEHICLE;
diff --git a/ai_new.c b/ai_new.c
index 66b28c454..8a6dc0dd1 100644
--- a/ai_new.c
+++ b/ai_new.c
@@ -185,7 +185,7 @@ static void AiNew_State_ActionDone(Player *p) {
 // Check if a city or industry is good enough to start a route there
 static bool AiNew_Check_City_or_Industry(Player *p, int ic, byte type) {
 	if (type == AI_CITY) {
-		Town *t = DEREF_TOWN(ic);
+		Town *t = GetTown(ic);
 		Station *st;
 		int count = 0;
 		int j = 0;
@@ -247,7 +247,7 @@ static bool AiNew_Check_City_or_Industry(Player *p, int ic, byte type) {
 		return true;
 	}
 	if (type == AI_INDUSTRY) {
-		Industry *i = DEREF_INDUSTRY(ic);
+		Industry *i = GetIndustry(ic);
 		Station *st;
 		int count = 0;
 		int j = 0;
@@ -405,16 +405,16 @@ static void AiNew_State_LocateRoute(Player *p) {
    		//   is.
 
    		if (p->ainew.from_type == AI_CITY && p->ainew.tbt == AI_BUS) {
-   			int max_cargo = DEREF_TOWN(p->ainew.from_ic)->max_pass + DEREF_TOWN(p->ainew.temp)->max_pass;
-   			max_cargo -= DEREF_TOWN(p->ainew.from_ic)->act_pass + DEREF_TOWN(p->ainew.temp)->act_pass;
+   			int max_cargo = GetTown(p->ainew.from_ic)->max_pass + GetTown(p->ainew.temp)->max_pass;
+   			max_cargo -= GetTown(p->ainew.from_ic)->act_pass + GetTown(p->ainew.temp)->act_pass;
    			// max_cargo is now the amount of cargo we can move between the two cities
    			// If it is more than the distance, we allow it
-   			if (GetTileDist(DEREF_TOWN(p->ainew.from_ic)->xy, DEREF_TOWN(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_BUS_CARGO_DISTANCE) {
+   			if (GetTileDist(GetTown(p->ainew.from_ic)->xy, GetTown(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_BUS_CARGO_DISTANCE) {
    				// We found a good city/industry, save the data of it
    				p->ainew.to_ic = p->ainew.temp;
    				p->ainew.state = AI_STATE_FIND_STATION;
 
-   				DEBUG(ai,1)("[AiNew - LocateRoute] Found bus-route of %d tiles long (from %d to %d)",GetTileDist(DEREF_TOWN(p->ainew.from_ic)->xy, DEREF_TOWN(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);
+   				DEBUG(ai,1)("[AiNew - LocateRoute] Found bus-route of %d tiles long (from %d to %d)",GetTileDist(GetTown(p->ainew.from_ic)->xy, GetTown(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);
 
    				p->ainew.from_tile = 0;
    				p->ainew.to_tile = 0;
@@ -427,12 +427,12 @@ static void AiNew_State_LocateRoute(Player *p) {
          	int i;
          	// TODO: in max_cargo, also check other cargo (beside [0])
          	// First we check if the from_ic produces cargo that this ic accepts
-         	if (DEREF_INDUSTRY(p->ainew.from_ic)->produced_cargo[0] != 0xFF && DEREF_INDUSTRY(p->ainew.from_ic)->total_production[0] != 0) {
+         	if (GetIndustry(p->ainew.from_ic)->produced_cargo[0] != 0xFF && GetIndustry(p->ainew.from_ic)->total_production[0] != 0) {
 	         	for (i=0;i<3;i++) {
-	         		if (DEREF_INDUSTRY(p->ainew.temp)->accepts_cargo[i] == 0xFF) break;
-					if (DEREF_INDUSTRY(p->ainew.from_ic)->produced_cargo[0] == DEREF_INDUSTRY(p->ainew.temp)->accepts_cargo[i]) {
+	         		if (GetIndustry(p->ainew.temp)->accepts_cargo[i] == 0xFF) break;
+					if (GetIndustry(p->ainew.from_ic)->produced_cargo[0] == GetIndustry(p->ainew.temp)->accepts_cargo[i]) {
 						// Found a compatbiel industry
-						max_cargo = DEREF_INDUSTRY(p->ainew.from_ic)->total_production[0] - DEREF_INDUSTRY(p->ainew.from_ic)->total_transported[0];
+						max_cargo = GetIndustry(p->ainew.from_ic)->total_production[0] - GetIndustry(p->ainew.from_ic)->total_transported[0];
 						found = true;
 	   					p->ainew.from_deliver = true;
 	   					p->ainew.to_deliver = false;
@@ -440,14 +440,14 @@ static void AiNew_State_LocateRoute(Player *p) {
 	       			}
 	       		}
    			}
-   			if (!found && DEREF_INDUSTRY(p->ainew.temp)->produced_cargo[0] != 0xFF && DEREF_INDUSTRY(p->ainew.temp)->total_production[0] != 0) {
+   			if (!found && GetIndustry(p->ainew.temp)->produced_cargo[0] != 0xFF && GetIndustry(p->ainew.temp)->total_production[0] != 0) {
    				// If not check if the current ic produces cargo that the from_ic accepts
 	         	for (i=0;i<3;i++) {
-	         		if (DEREF_INDUSTRY(p->ainew.from_ic)->accepts_cargo[i] == 0xFF) break;
-					if (DEREF_INDUSTRY(p->ainew.temp)->produced_cargo[0] == DEREF_INDUSTRY(p->ainew.from_ic)->accepts_cargo[i]) {
+	         		if (GetIndustry(p->ainew.from_ic)->accepts_cargo[i] == 0xFF) break;
+					if (GetIndustry(p->ainew.temp)->produced_cargo[0] == GetIndustry(p->ainew.from_ic)->accepts_cargo[i]) {
 						// Found a compatbiel industry
 						found = true;
-						max_cargo = DEREF_INDUSTRY(p->ainew.temp)->total_production[0] - DEREF_INDUSTRY(p->ainew.from_ic)->total_transported[0];
+						max_cargo = GetIndustry(p->ainew.temp)->total_production[0] - GetIndustry(p->ainew.from_ic)->total_transported[0];
 	   					p->ainew.from_deliver = false;
 	   					p->ainew.to_deliver = true;
 	       				break;
@@ -457,17 +457,17 @@ static void AiNew_State_LocateRoute(Player *p) {
    			if (found) {
    				// Yeah, they are compatible!!!
    				// Check the length against the amount of goods
-   				if (GetTileDist(DEREF_INDUSTRY(p->ainew.from_ic)->xy, DEREF_INDUSTRY(p->ainew.temp)->xy) > AI_LOCATEROUTE_TRUCK_MIN_DISTANCE &&
-       				GetTileDist(DEREF_INDUSTRY(p->ainew.from_ic)->xy, DEREF_INDUSTRY(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_TRUCK_CARGO_DISTANCE) {
+   				if (GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy) > AI_LOCATEROUTE_TRUCK_MIN_DISTANCE &&
+       				GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_TRUCK_CARGO_DISTANCE) {
 	   				p->ainew.to_ic = p->ainew.temp;
 	   				if (p->ainew.from_deliver) {
-	   					p->ainew.cargo = DEREF_INDUSTRY(p->ainew.from_ic)->produced_cargo[0];
+	   					p->ainew.cargo = GetIndustry(p->ainew.from_ic)->produced_cargo[0];
 	   				} else {
-   						p->ainew.cargo = DEREF_INDUSTRY(p->ainew.temp)->produced_cargo[0];
+   						p->ainew.cargo = GetIndustry(p->ainew.temp)->produced_cargo[0];
    					}
 	   				p->ainew.state = AI_STATE_FIND_STATION;
 
-	   				DEBUG(ai,1)("[AiNew - LocateRoute] Found truck-route of %d tiles long (from %d to %d)",GetTileDist(DEREF_INDUSTRY(p->ainew.from_ic)->xy, DEREF_INDUSTRY(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);
+	   				DEBUG(ai,1)("[AiNew - LocateRoute] Found truck-route of %d tiles long (from %d to %d)",GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);
 
 	   				p->ainew.from_tile = 0;
 	   				p->ainew.to_tile = 0;
@@ -506,7 +506,7 @@ static bool AiNew_CheckVehicleStation(Player *p, Station *st) {
 			if (sched != NULL) {
 				for (; sched->type != OT_NOTHING; ++sched) {
 					if (sched->type == OT_GOTO_STATION &&
-							DEREF_STATION(sched->station) == st) {
+							GetStation(sched->station) == st) {
 						// This vehicle has this city in his list
 						count++;
 					}
@@ -533,19 +533,19 @@ static void AiNew_State_FindStation(Player *p) {
     if (p->ainew.from_tile == 0) {
         // First we scan for a station in the from-city
         if (p->ainew.from_type == AI_CITY) {
-        	town = DEREF_TOWN(p->ainew.from_ic);
+        	town = GetTown(p->ainew.from_ic);
         	tile = town->xy;
         } else {
-        	industry = DEREF_INDUSTRY(p->ainew.from_ic);
+        	industry = GetIndustry(p->ainew.from_ic);
         	tile = industry->xy;
         }
     } else if (p->ainew.to_tile == 0) {
     	// Second we scan for a station in the to-city
         if (p->ainew.to_type == AI_CITY) {
-        	town = DEREF_TOWN(p->ainew.to_ic);
+        	town = GetTown(p->ainew.to_ic);
         	tile = town->xy;
         } else {
-        	industry = DEREF_INDUSTRY(p->ainew.to_ic);
+        	industry = GetIndustry(p->ainew.to_ic);
         	tile = industry->xy;
         }
     } else {
@@ -682,8 +682,8 @@ static void AiNew_State_FindPath(Player *p) {
     	// Init path_info
     	if (p->ainew.from_tile == AI_STATION_RANGE) {
     		// For truck routes we take a range around the industry
-	    	p->ainew.path_info.start_tile_tl = DEREF_INDUSTRY(p->ainew.from_ic)->xy - TILE_XY(1,1);
-	    	p->ainew.path_info.start_tile_br = DEREF_INDUSTRY(p->ainew.from_ic)->xy + TILE_XY(DEREF_INDUSTRY(p->ainew.from_ic)->width, DEREF_INDUSTRY(p->ainew.from_ic)->height) + TILE_XY(1,1);
+	    	p->ainew.path_info.start_tile_tl = GetIndustry(p->ainew.from_ic)->xy - TILE_XY(1,1);
+	    	p->ainew.path_info.start_tile_br = GetIndustry(p->ainew.from_ic)->xy + TILE_XY(GetIndustry(p->ainew.from_ic)->width, GetIndustry(p->ainew.from_ic)->height) + TILE_XY(1,1);
 	    	p->ainew.path_info.start_direction = p->ainew.from_direction;
 	    } else {
 	    	p->ainew.path_info.start_tile_tl = p->ainew.from_tile;
@@ -692,8 +692,8 @@ static void AiNew_State_FindPath(Player *p) {
 	    }
 
 	    if (p->ainew.to_tile == AI_STATION_RANGE) {
-	    	p->ainew.path_info.end_tile_tl = DEREF_INDUSTRY(p->ainew.to_ic)->xy - TILE_XY(1,1);
-	    	p->ainew.path_info.end_tile_br = DEREF_INDUSTRY(p->ainew.to_ic)->xy + TILE_XY(DEREF_INDUSTRY(p->ainew.to_ic)->width, DEREF_INDUSTRY(p->ainew.to_ic)->height) + TILE_XY(1,1);
+	    	p->ainew.path_info.end_tile_tl = GetIndustry(p->ainew.to_ic)->xy - TILE_XY(1,1);
+	    	p->ainew.path_info.end_tile_br = GetIndustry(p->ainew.to_ic)->xy + TILE_XY(GetIndustry(p->ainew.to_ic)->width, GetIndustry(p->ainew.to_ic)->height) + TILE_XY(1,1);
 	   	    p->ainew.path_info.end_direction = p->ainew.to_direction;
     	} else {
 	   	    p->ainew.path_info.end_tile_tl = p->ainew.to_tile;
@@ -847,9 +847,9 @@ static int AiNew_HowManyVehicles(Player *p) {
     	// Calculating tiles a day a vehicle moves is not easy.. this is how it must be done!
     	tiles_a_day = RoadVehInfo(i)->max_speed * DAY_TICKS / 256 / 16;
     	if (p->ainew.from_deliver)
-    		max_cargo = DEREF_INDUSTRY(p->ainew.from_ic)->total_production[0];
+    		max_cargo = GetIndustry(p->ainew.from_ic)->total_production[0];
     	else
-    		max_cargo = DEREF_INDUSTRY(p->ainew.to_ic)->total_production[0];
+    		max_cargo = GetIndustry(p->ainew.to_ic)->total_production[0];
 
     	// This is because moving 60% is more than we can dream of!
     	max_cargo *= 0.6;
diff --git a/aircraft_cmd.c b/aircraft_cmd.c
index 082759ab5..d351eb647 100644
--- a/aircraft_cmd.c
+++ b/aircraft_cmd.c
@@ -217,7 +217,7 @@ int32 CmdBuildAircraft(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 			const AirportFTAClass *Airport;
 			const TileIndexDiffC *cur_depot;
 			byte i = 0;
-			st = DEREF_STATION(_map2[tile]);
+			st = GetStation(_map2[tile]);
 			Airport = GetAirport(st->airport_type);
 			for (cur_depot = Airport->airport_depots; i != Airport->nof_depots; cur_depot++) {
 				if ((uint)(st->airport_tile + ToTileIndexDiff(*cur_depot)) == tile) {
@@ -311,7 +311,7 @@ int32 CmdSellAircraft(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner) || !CheckStoppedInHangar(v))
 		return CMD_ERROR;
@@ -332,7 +332,7 @@ int32 CmdStartStopAircraft(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -357,7 +357,7 @@ int32 CmdSendAircraftToHangar(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	Vehicle *v;
 	Station *st;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -370,7 +370,7 @@ int32 CmdSendAircraftToHangar(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);
 		}
 	} else {
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		// If an airport doesn't have terminals (so no landing space for airports),
 		// it surely doesn't have any hangars
 		if (st->xy == 0 || st->airport_tile == 0 || GetAirport(st->airport_type)->nofterminals == 0)
@@ -393,7 +393,7 @@ int32 CmdChangeAircraftServiceInt(int x, int y, uint32 flags, uint32 p1, uint32
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -419,7 +419,7 @@ int32 CmdRefitAircraft(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_AIRCRAFT_RUN);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 	if (!CheckOwnership(v->owner) || (!CheckStoppedInHangar(v) && !(SkipStoppedInHangerCheck)))
 		return CMD_ERROR;
 
@@ -481,7 +481,7 @@ static void CheckIfAircraftNeedsService(Vehicle *v)
  	if (_patches.gotodepot && ScheduleHasDepotOrders(v->schedule_ptr))
  		return;
 
-	st = DEREF_STATION(v->current_order.station);
+	st = GetStation(v->current_order.station);
 	// only goto depot if the target airport has terminals (eg. it is airport)
 	if (st->xy != 0 && st->airport_tile != 0 && GetAirport(st->airport_type)->nofterminals != 0) {
 //		printf("targetairport = %d, st->index = %d\n", v->u.air.targetairport, st->index);
@@ -720,7 +720,7 @@ static bool Aircraft_5(Vehicle *v)
 	uint dist;
 	int x,y;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 
 	// prevent going to 0,0 if airport is deleted.
 	{
@@ -925,7 +925,7 @@ static void HandleCrashedAircraft(Vehicle *v)
 
 	v->u.air.crashed_counter++;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 
 	// make aircraft crash down to the ground
 	if ( st->airport_tile==0 && ((v->u.air.crashed_counter % 3) == 0) ) {
@@ -1112,7 +1112,7 @@ static void CrashAirplane(Vehicle *v)
 
 	v->cargo_count = 0;
 	v->next->cargo_count = 0,
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 	if(st->airport_tile==0) {
 		newsitem = STR_PLANE_CRASH_OUT_OF_FUEL;
 	} else {
@@ -1135,7 +1135,7 @@ static void MaybeCrashAirplane(Vehicle *v)
 	uint16 prob;
 	int i;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 
 	//FIXME -- MaybeCrashAirplane -> increase crashing chances of very modern airplanes on smaller than AT_METROPOLITAN airports
 	prob = 0x10000 / 1500;
@@ -1164,7 +1164,7 @@ static void AircraftEntersTerminal(Vehicle *v)
 	if (v->current_order.type == OT_GOTO_DEPOT)
 		return;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 	v->last_station_visited = v->u.air.targetairport;
 
 	/* Check if station was ever visited before */
@@ -1253,7 +1253,7 @@ static void AircraftNextAirportPos_and_Order(Vehicle *v)
 			v->current_order.type == OT_GOTO_DEPOT)
 		v->u.air.targetairport = v->current_order.station;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 	Airport = GetAirport(st->airport_type);
 	v->u.air.pos = v->u.air.previous_pos = Airport->entry_point;
 }
@@ -1423,7 +1423,7 @@ static void AircraftEventHandler_Flying(Vehicle *v, const AirportFTAClass *Airpo
 	AirportFTA *current;
 	uint16 tcur_speed, tsubspeed;
 
-	st = DEREF_STATION(v->u.air.targetairport);
+	st = GetStation(v->u.air.targetairport);
 	// flying device is accepted at this station
 	// small airport --> no helicopters (AIRCRAFT_ONLY)
 	// all other airports --> all types of flying devices (ALL)
@@ -1537,7 +1537,7 @@ static void AirportClearBlock(Vehicle *v, const AirportFTAClass *Airport)
 	Station *st;
 	// we have left the previous block, and entered the new one. Free the previous block
 	if (Airport->layout[v->u.air.previous_pos].block != Airport->layout[v->u.air.pos].block) {
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		CLRBITS(st->airport_flags, Airport->layout[v->u.air.previous_pos].block);
 	}
 }
@@ -1613,7 +1613,7 @@ static bool AirportHasBlock(Vehicle *v, AirportFTA *current_pos, const AirportFT
 	// same block, then of course we can move
 	if (Airport->layout[current_pos->position].block != next->block) {
 		airport_flags = next->block;
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		// check additional possible extra blocks
 		if (current_pos != reference && current_pos->block != NOTHING_block) {
 			airport_flags |= current_pos->block;
@@ -1640,7 +1640,7 @@ static bool AirportSetBlocks(Vehicle *v, AirportFTA *current_pos, const AirportF
 	// if the next position is in another block, check it and wait until it is free
 	if (Airport->layout[current_pos->position].block != next->block) {
 		airport_flags = next->block;
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		//search for all all elements in the list with the same state, and blocks != N
 		// this means more blocks should be checked/set
 		current = current_pos;
@@ -1672,7 +1672,7 @@ static bool AirportSetBlocks(Vehicle *v, AirportFTA *current_pos, const AirportF
 
 static bool FreeTerminal(Vehicle *v, byte i, byte last_terminal)
 {
-	Station *st = DEREF_STATION(v->u.air.targetairport);
+	Station *st = GetStation(v->u.air.targetairport);
 	for (; i < last_terminal; i++) {
 		if (!HASBIT(st->airport_flags, i)) {
 			// TERMINAL# HELIPAD#
@@ -1701,7 +1701,7 @@ static bool AirportFindFreeTerminal(Vehicle *v, const AirportFTAClass *Airport)
 		fails, then attempt fails and plane waits
 	*/
 	if (Airport->nofterminalgroups > 1) {
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		nofterminalspergroup = Airport->nofterminals / Airport->nofterminalgroups;
 		temp = Airport->layout[v->u.air.pos].next_in_chain;
 		while (temp != NULL) {
@@ -1734,7 +1734,7 @@ static bool AirportFindFreeHelipad(Vehicle *v, const AirportFTAClass *Airport)
 
 	// if there are more helicoptergroups, pick one, just as in AirportFindFreeTerminal()
 	if (Airport->nofhelipadgroups > 1) {
-		st = DEREF_STATION(v->u.air.targetairport);
+		st = GetStation(v->u.air.targetairport);
 		nofhelipadspergroup = Airport->nofhelipads / Airport->nofhelipadgroups;
 		temp = Airport->layout[v->u.air.pos].next_in_chain;
 		while (temp != NULL) {
@@ -1787,7 +1787,7 @@ static void AircraftEventHandler(Vehicle *v, int loop)
 	// pass the right airport structure to the functions
 	// DEREF_STATION gets target airport (Station *st), its type is passed to GetAirport
 	// that returns the correct layout depending on type
-	AirportGoToNextPosition(v, GetAirport(DEREF_STATION(v->u.air.targetairport)->airport_type));
+	AirportGoToNextPosition(v, GetAirport(GetStation(v->u.air.targetairport)->airport_type));
 }
 
 void Aircraft_Tick(Vehicle *v)
diff --git a/aircraft_gui.c b/aircraft_gui.c
index 5bf84875c..0228e3691 100644
--- a/aircraft_gui.c
+++ b/aircraft_gui.c
@@ -51,7 +51,7 @@ void CcBuildAircraft(bool success, uint tile, uint32 p1, uint32 p2)
 	Vehicle *v;
 
 	if (success) {
-		v = &_vehicles[_new_aircraft_id];
+		v = GetVehicle(_new_aircraft_id);
 		if (v->tile == _backup_orders_tile) {
 			_backup_orders_tile = 0;
 			RestoreVehicleOrders(v, _backup_orders_data);
@@ -217,7 +217,7 @@ static void AircraftRefitWndProc(Window *w, WindowEvent *e)
 {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		const byte *b;
 		int sel;
 		int x,y;
@@ -296,7 +296,7 @@ static void AircraftRefitWndProc(Window *w, WindowEvent *e)
 			} break;
 		case 4: /* refit button */
 			if (WP(w,refit_d).cargo != 0xFF) {
-				Vehicle *v = &_vehicles[w->window_number];
+				Vehicle *v = GetVehicle(w->window_number);
 				if (DoCommandP(v->tile, v->index, WP(w,refit_d).cargo, NULL, CMD_REFIT_AIRCRAFT | CMD_MSG(STR_A042_CAN_T_REFIT_AIRCRAFT)))
 					DeleteWindow(w);
 			}
@@ -339,7 +339,7 @@ static void ShowAircraftRefitWindow(Vehicle *v)
 static void AircraftDetailsWndProc(Window *w, WindowEvent *e)
 {
 	int mod;
-	Vehicle *v = &_vehicles[w->window_number], *u;
+	Vehicle *v = GetVehicle(w->window_number), *u;
 
 	switch(e->event) {
 	case WE_PAINT:
@@ -534,7 +534,7 @@ static void AircraftViewWndProc(Window *w, WindowEvent *e)
 {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		uint32 disabled = 1<<8;
 		StringID str;
 
@@ -595,7 +595,7 @@ static void AircraftViewWndProc(Window *w, WindowEvent *e)
 	} break;
 
 	case WE_CLICK: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 
 		switch(e->click.widget) {
 		case 5: /* start stop */
@@ -832,7 +832,7 @@ static void AircraftDepotWndProc(Window *w, WindowEvent *e)
 
 				HandleButtonClick(w, 5);
 
-				v = &_vehicles[WP(w,traindepot_d).sel];
+				v = GetVehicle(WP(w,traindepot_d).sel);
 				WP(w,traindepot_d).sel = INVALID_VEHICLE;
 
 				_backup_orders_tile = v->tile;
@@ -979,7 +979,7 @@ static void PlayerAircraftWndProc(Window *w, WindowEvent *e)
 				w->widget[1].unkA = STR_A009_AIRCRAFT;
 			} else {
 				/* Station Name -- (###) Aircraft */
-				SetDParam(0, DEREF_STATION(station)->index);
+				SetDParam(0, GetStation(station)->index);
 				SetDParam(1, w->vscroll.count);
 				w->widget[1].unkA = STR_SCHEDULED_AIRCRAFT;
 			}
@@ -993,7 +993,7 @@ static void PlayerAircraftWndProc(Window *w, WindowEvent *e)
 
 		max = min(w->vscroll.pos + w->vscroll.cap, vl->list_length);
 		for (i = w->vscroll.pos; i < max; ++i) {
-			Vehicle *v = DEREF_VEHICLE(vl->sort_list[i].index);
+			Vehicle *v = GetVehicle(vl->sort_list[i].index);
 			StringID str;
 
 			assert(v->type == VEH_Aircraft && v->subtype <= 2);
@@ -1047,7 +1047,7 @@ static void PlayerAircraftWndProc(Window *w, WindowEvent *e)
 
 				if (id_v >= vl->list_length) return; // click out of list bound
 
-				v	= DEREF_VEHICLE(vl->sort_list[id_v].index);
+				v = GetVehicle(vl->sort_list[id_v].index);
 
 				assert(v->type == VEH_Aircraft && v->subtype <= 2);
 
diff --git a/disaster_cmd.c b/disaster_cmd.c
index 88da6afab..a00bedcf1 100644
--- a/disaster_cmd.c
+++ b/disaster_cmd.c
@@ -193,7 +193,7 @@ static void DisasterTick_Zeppeliner(Vehicle *v)
 			IS_BYTE_INSIDE(_map5[tile], 8, 0x43) &&
 			IS_HUMAN_PLAYER(_map_owner[tile])) {
 
-			st = DEREF_STATION(_map2[tile]);
+			st = GetStation(_map2[tile]);
 			CLRBITS(st->airport_flags, RUNWAY_IN_block);
 		}
 
@@ -235,7 +235,7 @@ static void DisasterTick_Zeppeliner(Vehicle *v)
 		IS_BYTE_INSIDE(_map5[tile], 8, 0x43) &&
 		IS_HUMAN_PLAYER(_map_owner[tile])) {
 
-		st = DEREF_STATION(_map2[tile]);
+		st = GetStation(_map2[tile]);
 		SETBITS(st->airport_flags, RUNWAY_IN_block);
 	}
 }
@@ -278,7 +278,7 @@ static void DisasterTick_UFO(Vehicle *v)
 		DeleteDisasterVeh(v);
 	} else {
 // target a vehicle
-		u = &_vehicles[v->dest_tile];
+		u = GetVehicle(v->dest_tile);
 		if (u->type != VEH_Road) {
 			DeleteDisasterVeh(v);
 			return;
@@ -323,10 +323,9 @@ static void DisasterTick_UFO(Vehicle *v)
 static void DestructIndustry(Industry *i)
 {
 	uint tile;
-	byte index = i - _industries;
 
 	for(tile=0; tile != MapSize(); tile++) {
-		if (IS_TILETYPE(tile, MP_INDUSTRY) &&	_map2[tile] == index) {
+		if (IS_TILETYPE(tile, MP_INDUSTRY) &&	_map2[tile] == i->index) {
 			_map_owner[tile] = 0;
 			MarkTileDirtyByTile(tile);
 		}
@@ -352,7 +351,7 @@ static void DisasterTick_2(Vehicle *v)
 
 	if (v->current_order.station == 2) {
 		if (!(v->tick_counter&3)) {
-			Industry *i = DEREF_INDUSTRY(v->dest_tile);
+			Industry *i = GetIndustry(v->dest_tile);
 			int x = GET_TILE_X(i->xy)*16;
 			int y = GET_TILE_Y(i->xy)*16;
 			uint32 r = Random();
@@ -373,7 +372,7 @@ static void DisasterTick_2(Vehicle *v)
 			v->current_order.station = 2;
 			v->age = 0;
 
-			i = DEREF_INDUSTRY(v->dest_tile);
+			i = GetIndustry(v->dest_tile);
 			DestructIndustry(i);
 
 			SetDParam(0, i->town->index);
@@ -397,7 +396,7 @@ static void DisasterTick_2(Vehicle *v)
 
 		v->dest_tile = ind = _map2[tile];
 
-		if (DEREF_INDUSTRY(ind)->type == IT_OIL_REFINERY) {
+		if (GetIndustry(ind)->type == IT_OIL_REFINERY) {
 			v->current_order.station = 1;
 			v->age = 0;
 		}
@@ -423,7 +422,7 @@ static void DisasterTick_3(Vehicle *v)
 
 	if (v->current_order.station == 2) {
 		if (!(v->tick_counter&3)) {
-			Industry *i = DEREF_INDUSTRY(v->dest_tile);
+			Industry *i = GetIndustry(v->dest_tile);
 			int x = GET_TILE_X(i->xy)*16;
 			int y = GET_TILE_Y(i->xy)*16;
 			uint32 r = Random();
@@ -444,7 +443,7 @@ static void DisasterTick_3(Vehicle *v)
 			v->current_order.station = 2;
 			v->age = 0;
 
-			i = DEREF_INDUSTRY(v->dest_tile);
+			i = GetIndustry(v->dest_tile);
 			DestructIndustry(i);
 
 			SetDParam(0, i->town->index);
@@ -468,7 +467,7 @@ static void DisasterTick_3(Vehicle *v)
 
 		v->dest_tile = ind = _map2[tile];
 
-		if (DEREF_INDUSTRY(ind)->type == IT_FACTORY) {
+		if (GetIndustry(ind)->type == IT_FACTORY) {
 			v->current_order.station = 1;
 			v->age = 0;
 		}
@@ -600,7 +599,7 @@ static void DisasterTick_4b(Vehicle *v)
 	}
 
 	if (v->current_order.station == 0) {
-		u = &_vehicles[v->u.disaster.unk2];
+		u = GetVehicle(v->u.disaster.unk2);
 		if (abs(v->x_pos - u->x_pos) > 16)
 			return;
 		v->current_order.station = 1;
@@ -701,18 +700,17 @@ static void Disaster0_Init()
 	if (v == NULL)
 		return;
 
-	for(st=_stations;;) {
+	/* Pick a random place, unless we find
+	    a small airport */
+	x = (GET_TILE_X(Random())) * 16 + 8;
+
+	FOR_ALL_STATIONS(st) {
 		if (st->xy && st->airport_tile != 0 &&
 				st->airport_type <= 1 &&
 				IS_HUMAN_PLAYER(st->owner)) {
 			x = (GET_TILE_X(st->xy) + 2) * 16;
 			break;
 		}
-
-		if (++st == endof(_stations)) {
-			x = (GET_TILE_X(Random())) * 16 + 8;
-			break;
-		}
 	}
 
 	InitializeDisasterVehicle(v, x, 0, 135, 3, 0);
@@ -721,7 +719,7 @@ static void Disaster0_Init()
 	u = ForceAllocateSpecialVehicle();
 	if (u != NULL) {
 		v->next = u;
-		InitializeDisasterVehicle(u,x,0,0,3,1);
+		InitializeDisasterVehicle(u, x, 0, 0, 3, 1);
 		u->vehstatus |= VS_DISASTER;
 	}
 }
diff --git a/economy.c b/economy.c
index a8925f87f..e15b3bc67 100644
--- a/economy.c
+++ b/economy.c
@@ -270,7 +270,7 @@ void ChangeOwnershipOfPlayerItems(byte old_player, byte new_player)
 
 		for(s=_subsidies; s != endof(_subsidies); s++) {
 			if (s->cargo_type != 0xff && s->age >= 12) {
-				Station *st = DEREF_STATION(s->to);
+				Station *st = GetStation(s->to);
 				if (st->owner == old_player)
 					s->cargo_type = 0xff;
 			}
@@ -798,7 +798,7 @@ Pair SetupSubsidyDecodeParam(Subsidy *s, bool mode)
 	if (s->age < 12) {
 		if (!(s->cargo_type == CT_PASSENGERS || s->cargo_type == CT_MAIL)) {
 			SetDParam(1, STR_2029);
-			i = DEREF_INDUSTRY(s->from);
+			i = GetIndustry(s->from);
 			tile = i->xy;
 			SetDParam(2, i->town->townnametype);
 			SetDParam(3, i->town->townnameparts);
@@ -807,34 +807,34 @@ Pair SetupSubsidyDecodeParam(Subsidy *s, bool mode)
 
 			if (s->cargo_type != CT_GOODS && s->cargo_type != CT_FOOD) {
 				SetDParam(5, STR_2029);
-				i = DEREF_INDUSTRY(s->to);
+				i = GetIndustry(s->to);
 				tile2 = i->xy;
 				SetDParam(8, i->type + STR_4802_COAL_MINE);
 				SetDParam(6, i->town->townnametype);
 				SetDParam(7, i->town->townnameparts);
 			} else {
-				t = DEREF_TOWN(s->to);
+				t = GetTown(s->to);
 				tile2 = t->xy;
 				SetDParam(5, t->townnametype);
 				SetDParam(6, t->townnameparts);
 			}
 		} else {
-			t = DEREF_TOWN(s->from);
+			t = GetTown(s->from);
 			tile = t->xy;
 			SetDParam(1, t->townnametype);
 			SetDParam(2, t->townnameparts);
 
-			t = DEREF_TOWN(s->to);
+			t = GetTown(s->to);
 			tile2 = t->xy;
 			SetDParam(3, t->townnametype);
 			SetDParam(4, t->townnameparts);
 		}
 	} else {
-		st = DEREF_STATION(s->from);
+		st = GetStation(s->from);
 		tile = st->xy;
 		SetDParam(1, st->index);
 
-		st = DEREF_STATION(s->to);
+		st = GetStation(s->to);
 		tile2 = st->xy;
 		SetDParam(2, st->index);
 	}
@@ -888,11 +888,11 @@ static void FindSubsidyPassengerRoute(FoundRoute *fr)
 
 	fr->distance = (uint)-1;
 
-	fr->from = from = DEREF_TOWN(RandomRange(_total_towns));
+	fr->from = from = GetTown(RandomRange(_total_towns));
 	if (from->xy == 0 || from->population < 400)
 		return;
 
-	fr->to = to = DEREF_TOWN(RandomRange(_total_towns));
+	fr->to = to = GetTown(RandomRange(_total_towns));
 	if (from==to || to->xy == 0 || to->population < 400 || to->pct_pass_transported > 42)
 		return;
 
@@ -907,7 +907,7 @@ static void FindSubsidyCargoRoute(FoundRoute *fr)
 
 	fr->distance = (uint)-1;
 
-	fr->from = i = DEREF_INDUSTRY(RandomRange(_total_industries));
+	fr->from = i = GetIndustry(RandomRange(_total_industries));
 	if (i->xy == 0)
 		return;
 
@@ -932,7 +932,7 @@ static void FindSubsidyCargoRoute(FoundRoute *fr)
 
 	if (cargo == CT_GOODS || cargo == CT_FOOD) {
 		// The destination is a town
-		Town *t = DEREF_TOWN(RandomRange(_total_towns));
+		Town *t = GetTown(RandomRange(_total_towns));
 
 		// Only want big towns
 		if (t->xy == 0 || t->population < 900)
@@ -941,7 +941,7 @@ static void FindSubsidyCargoRoute(FoundRoute *fr)
 		fr->to = t;
 	} else {
 		// The destination is an industry
-		Industry *i2 = DEREF_INDUSTRY(RandomRange(_total_industries));
+		Industry *i2 = GetIndustry(RandomRange(_total_industries));
 
 		// The industry must accept the cargo
 		if (i == i2 || i2->xy == 0 ||
@@ -1008,7 +1008,7 @@ static void SubsidyMonthlyHandler()
 			s->cargo_type = 0xFF;
 			modified = true;
 		} else if (s->age == 2*12-1) {
-			st = DEREF_STATION(s->to);
+			st = GetStation(s->to);
 			if (st->owner == _local_player) {
 				pair = SetupSubsidyDecodeParam(s, 1);
 				AddNewsItem(STR_202F_SUBSIDY_WITHDRAWN_SERVICE, NEWS_FLAGS(NM_NORMAL, NF_TILE, NT_SUBSIDIES, 0), pair.a, pair.b);
@@ -1041,8 +1041,8 @@ static void SubsidyMonthlyHandler()
 			FindSubsidyCargoRoute(&fr);
 			if (fr.distance <= 70) {
 				s->cargo_type = fr.cargo;
-				s->from = (Industry*)fr.from - _industries;
-				s->to = (fr.cargo == CT_GOODS || fr.cargo == CT_FOOD) ? ((Town*)fr.to)->index : (Industry*)fr.to - _industries;
+				s->from = ((Industry*)fr.from)->index;
+				s->to = (fr.cargo == CT_GOODS || fr.cargo == CT_FOOD) ? ((Town*)fr.to)->index : ((Industry*)fr.to)->index;
 	add_subsidy:
 				if (!CheckSubsidyDuplicate(s)) {
 					s->age = 0;
@@ -1167,18 +1167,18 @@ static bool CheckSubsidised(Station *from, Station *to, byte cargo_type)
 
 			/* Check distance from source */
 			if (cargo_type == CT_PASSENGERS || cargo_type == CT_MAIL) {
-				xy = DEREF_TOWN(s->from)->xy;
+				xy = GetTown(s->from)->xy;
 			} else {
-				xy = (DEREF_INDUSTRY(s->from))->xy;
+				xy = (GetIndustry(s->from))->xy;
 			}
 			if (GetTileDist1D(xy, from->xy) > 9)
 				continue;
 
 			/* Check distance from dest */
 			if (cargo_type == CT_PASSENGERS || cargo_type == CT_MAIL || cargo_type == CT_GOODS || cargo_type == CT_FOOD) {
-				xy = DEREF_TOWN(s->to)->xy;
+				xy = GetTown(s->to)->xy;
 			} else {
-				xy = (DEREF_INDUSTRY(s->to))->xy;
+				xy = (GetIndustry(s->to))->xy;
 			}
 
 			if (GetTileDist1D(xy, to->xy) > 9)
@@ -1224,8 +1224,8 @@ static int32 DeliverGoods(int num_pieces, byte cargo_type, byte source, byte des
 	}
 
 	// Get station pointers.
-	s_from = DEREF_STATION(source);
-	s_to = DEREF_STATION(dest);
+	s_from = GetStation(source);
+	s_to = GetStation(dest);
 
 	// Check if a subsidy applies.
 	subsidised = CheckSubsidised(s_from, s_to, cargo_type);
@@ -1349,7 +1349,7 @@ int LoadUnloadVehicle(Vehicle *v)
 	old_player = _current_player;
 	_current_player = v->owner;
 
-	st = DEREF_STATION(last_visited = v->last_station_visited);
+	st = GetStation(last_visited = v->last_station_visited);
 
 	for (; v != NULL; v = v->next) {
 		if (v->cargo_cap == 0) continue;
diff --git a/engine.c b/engine.c
index 734f507dc..12d1c7d80 100644
--- a/engine.c
+++ b/engine.c
@@ -737,17 +737,22 @@ static void NewVehicleAvailable(Engine *e)
 	// prevent that player from getting future intro periods for a while.
 	if (e->flags&ENGINE_INTRODUCING) {
 		FOR_ALL_PLAYERS(p) {
+			uint block_preview = p->block_preview;
+
 			if (!HASBIT(e->player_avail,p->index))
 				continue;
 
-			for(v=_vehicles;;) {
+			/* We assume the user did NOT build it.. prove me wrong ;) */
+			p->block_preview = 20;
+
+			FOR_ALL_VEHICLES(v) {
 				if (v->type == VEH_Train || v->type == VEH_Road || v->type == VEH_Ship ||
 						(v->type == VEH_Aircraft && v->subtype <= 2)) {
-					if (v->owner == p->index && v->engine_type == index) break;
-				}
-				if (++v == endof(_vehicles)) {
-					p->block_preview = 20;
-					break;
+					if (v->owner == p->index && v->engine_type == index) {
+						/* The user did prove me wrong, so restore old value */
+						p->block_preview = block_preview;
+						break;
+					}
 				}
 			}
 		}
diff --git a/industry.h b/industry.h
index 852f23bbd..81e030ed1 100644
--- a/industry.h
+++ b/industry.h
@@ -23,12 +23,25 @@ struct Industry {
 	byte color_map;
 	byte last_prod_year;
 	byte was_cargo_delivered;
+
+	uint16 index;
 };
 
 VARDEF int _total_industries; // For the AI: the amount of industries active
+
 VARDEF Industry _industries[90];
-#define DEREF_INDUSTRY(i) (&_industries[i])
-#define FOR_ALL_INDUSTRIES(i) for(i = _industries; i != endof(_industries); i++)
+VARDEF uint _industries_size;
+
+VARDEF uint16 *_industry_sort;
+
+static inline Industry *GetIndustry(uint index)
+{
+	assert(index < _industries_size);
+	return &_industries[index];
+}
+
+#define FOR_ALL_INDUSTRIES(i) for(i = _industries; i != &_industries[_industries_size]; i++)
+
 VARDEF bool _industry_sort_dirty;
 void DeleteIndustry(Industry *is);
 
diff --git a/industry_cmd.c b/industry_cmd.c
index 3b4aceb38..5014daae5 100644
--- a/industry_cmd.c
+++ b/industry_cmd.c
@@ -282,7 +282,7 @@ static void DrawTile_Industry(TileInfo *ti)
 	uint32 image, ormod;
 
 	/* Pointer to industry */
-	ind = DEREF_INDUSTRY(_map2[ti->tile]);
+	ind = GetIndustry(_map2[ti->tile]);
 	ormod = (ind->color_map+0x307)<<16;
 
 	/* Retrieve pointer to the draw industry tile struct */
@@ -358,7 +358,7 @@ static void GetAcceptedCargo_Industry(uint tile, AcceptedCargo ac)
 
 static void GetTileDesc_Industry(uint tile, TileDesc *td)
 {
-	Industry *i = DEREF_INDUSTRY(_map2[tile]);
+	Industry *i = GetIndustry(_map2[tile]);
 
 	td->owner = i->owner;
 	td->str = STR_4802_COAL_MINE + i->type;
@@ -370,7 +370,7 @@ static void GetTileDesc_Industry(uint tile, TileDesc *td)
 
 static int32 ClearTile_Industry(uint tile, byte flags)
 {
-	Industry *i = DEREF_INDUSTRY(_map2[tile]);
+	Industry *i = GetIndustry(_map2[tile]);
 
 	/*	* water can destroy industries
 			* in editor you can bulldoze industries
@@ -395,7 +395,7 @@ static int32 ClearTile_Industry(uint tile, byte flags)
 int32 CmdDestroyIndustry(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	uint tile = TILE_FROM_XY(x,y);
-	Industry *i = DEREF_INDUSTRY((uint16)p1);
+	Industry *i = GetIndustry((uint16)p1);
   Town *t = ClosestTownFromTile(tile, (uint)-1); // find closest town to penaltize (ALWAYS penaltize)
 
 	SET_EXPENSES_TYPE(EXPENSES_OTHER);
@@ -430,7 +430,7 @@ static void TransportIndustryGoods(uint tile)
 	uint cw, am;
 	byte m5;
 
-	i = DEREF_INDUSTRY(_map2[tile]);
+	i = GetIndustry(_map2[tile]);
 
 	type = i->type;
 	cw = min(i->cargo_waiting[0], 255);
@@ -784,7 +784,7 @@ static void TileLoop_Industry(uint tile)
 
 
 	case 143: {
-			Industry *i = DEREF_INDUSTRY(_map2[tile]);
+			Industry *i = GetIndustry(_map2[tile]);
 			if (i->was_cargo_delivered) {
 				i->was_cargo_delivered = false;
 				if ((_map3_hi[tile]|_map3_lo[tile]) != 0)
@@ -823,7 +823,7 @@ static uint32 GetTileTrackStatus_Industry(uint tile, TransportType mode)
 
 static void GetProducedCargo_Industry(uint tile, byte *b)
 {
-	Industry *i = DEREF_INDUSTRY(_map2[tile]);
+	Industry *i = GetIndustry(_map2[tile]);
 	b[0] = i->produced_cargo[0];
 	b[1] = i->produced_cargo[1];
 }
@@ -835,22 +835,20 @@ static void ChangeTileOwner_Industry(uint tile, byte old_player, byte new_player
 
 void DeleteIndustry(Industry *i)
 {
-	int index = i - _industries;
-
-	BEGIN_TILE_LOOP(tile_cur,	i->width, i->height, i->xy);
+	BEGIN_TILE_LOOP(tile_cur, i->width, i->height, i->xy);
 		if (IS_TILETYPE(tile_cur, MP_INDUSTRY)) {
-			if (_map2[tile_cur] == (uint16)index) {
+			if (_map2[tile_cur] == i->index) {
 				DoClearSquare(tile_cur);
 			}
 		} else if (IS_TILETYPE(tile_cur, MP_STATION) && _map5[tile_cur] == 0x4B) {
 			DeleteOilRig(tile_cur);
 		}
-	END_TILE_LOOP(tile_cur,	i->width, i->height, i->xy);
+	END_TILE_LOOP(tile_cur, i->width, i->height, i->xy);
 
 	i->xy = 0;
 	_industry_sort_dirty = true;
-	DeleteSubsidyWithIndustry(index);
-	DeleteWindowById(WC_INDUSTRY_VIEW, index);
+	DeleteSubsidyWithIndustry(i->index);
+	DeleteWindowById(WC_INDUSTRY_VIEW, i->index);
 	InvalidateWindow(WC_INDUSTRY_DIRECTORY, 0);
 }
 
@@ -1400,8 +1398,9 @@ static Industry *AllocateIndustry()
 
 	FOR_ALL_INDUSTRIES(i) {
 		if (i->xy == 0) {
-			int index = i - _industries;
-		    if (index > _total_industries) _total_industries = index;
+			if (i->index > _total_industries)
+				_total_industries = i->index;
+
 			return i;
 		}
 	}
@@ -1475,7 +1474,7 @@ static void DoCreateNewIndustry(Industry *i, uint tile, int type, const Industry
 
 			_map_type_and_height[cur_tile] = (_map_type_and_height[cur_tile]&~0xF0) | (MP_INDUSTRY<<4);
 			_map5[cur_tile] = it->map5;
-			_map2[cur_tile] = i - _industries;
+			_map2[cur_tile] = i->index;
 			_map_owner[cur_tile] = _generating_world ? 0x1E : 0; /* maturity */
 		}
 	} while ((++it)->ti.x != -0x80);
@@ -1711,7 +1710,7 @@ static void UpdateIndustryStatistics(Industry *i)
 
 
 	if ( i->produced_cargo[0] != 0xFF || i->produced_cargo[1] != 0xFF )
-		InvalidateWindow(WC_INDUSTRY_VIEW, i - _industries);
+		InvalidateWindow(WC_INDUSTRY_VIEW, i->index);
 
 	if (i->prod_level == 0)
 		DeleteIndustry(i);
@@ -1819,7 +1818,7 @@ void IndustryMonthlyLoop()
 			UpdateIndustryStatistics(i);
 	}
 
-	i = DEREF_INDUSTRY(RandomRange(lengthof(_industries)));
+	i = GetIndustry(RandomRange(_industries_size));
 
 	if (i->xy == 0) {
 		uint32 r;
@@ -1839,7 +1838,15 @@ void IndustryMonthlyLoop()
 
 void InitializeIndustries()
 {
-	memset(_industries, 0, sizeof(_industries));
+	Industry *i;
+	int j;
+
+	memset(_industries, 0, sizeof(_industries[0]) * _industries_size);
+
+	j = 0;
+	FOR_ALL_INDUSTRIES(i)
+		i->index = j++;
+
 	_total_industries = 0;
 	_industry_sort_dirty = true;
 }
@@ -1894,14 +1901,13 @@ static const byte _industry_desc[] = {
 static void Save_INDY()
 {
 	Industry *ind;
-	int i = 0;
+
 	// Write the vehicles
 	FOR_ALL_INDUSTRIES(ind) {
 		if (ind->xy != 0) {
-			SlSetArrayIndex(i);
+			SlSetArrayIndex(ind->index);
 			SlObject(ind, _industry_desc);
 		}
-		i++;
 	}
 }
 
@@ -1910,7 +1916,9 @@ static void Load_INDY()
 	int index;
 	_total_industries = 0;
 	while ((index = SlIterateArray()) != -1) {
-		SlObject(DEREF_INDUSTRY(index), _industry_desc);
+		Industry *i = GetIndustry(index);
+
+		SlObject(i, _industry_desc);
 		if (index > _total_industries) _total_industries = index;
 	}
 }
diff --git a/industry_gui.c b/industry_gui.c
index 81643f4ce..accf17b47 100644
--- a/industry_gui.c
+++ b/industry_gui.c
@@ -275,7 +275,7 @@ static void IndustryViewWndProc(Window *w, WindowEvent *e)
 		// in editor, use bulldoze to destroy industry
 		// Destroy Industry button costing money removed per request of dominik
 		//w->disabled_state = (_patches.extra_dynamite && !_networking && _game_mode != GM_EDITOR) ? 0 : (1 << 6);
-		i = DEREF_INDUSTRY(w->window_number);
+		i = GetIndustry(w->window_number);
 		SetDParam(0, i->town->index);
 		SetDParam(1, i->type + STR_4802_COAL_MINE);
 		DrawWindowWidgets(w);
@@ -316,12 +316,12 @@ static void IndustryViewWndProc(Window *w, WindowEvent *e)
 	case WE_CLICK:
 		switch(e->click.widget) {
 		case 6:
-			i = DEREF_INDUSTRY(w->window_number);
+			i = GetIndustry(w->window_number);
 			ScrollMainWindowToTile(i->xy + TILE_XY(1,1));
 			break;
 		case 7:
 			// Destroy Industry button costing money removed per request of dominik
-			//i = DEREF_INDUSTRY(w->window_number);
+			//i = GetIndustry(w->window_number);
 			/*	passing only i->xy is not safe if industry has a weird shape like:
 					_ X X
 					X X X
@@ -365,7 +365,7 @@ void ShowIndustryViewWindow(int industry)
 	w = AllocateWindowDescFront(&_industry_view_desc, industry);
 	if (w) {
 		w->flags4 |= WF_DISABLE_VP_SCROLL;
-		i = DEREF_INDUSTRY(w->window_number);
+		i = GetIndustry(w->window_number);
 		AssignWindowViewport(w, 3, 17, 0xFE, 0x56, i->xy + TILE_XY(1,1), 1);
 	}
 }
@@ -385,7 +385,6 @@ static const Widget _industry_directory_widgets[] = {
 {   WIDGETS_END},
 };
 
-static uint16 _industry_sort[lengthof(_industries)];
 static uint _num_industry_sort;
 
 static char _bufcache[96];
@@ -397,8 +396,8 @@ static int CDECL GeneralIndustrySorter(const void *a, const void *b)
 {
 	char buf1[96];
 	byte val;
-	Industry *i = DEREF_INDUSTRY(*(const uint16*)a);
-	Industry *j = DEREF_INDUSTRY(*(const uint16*)b);
+	Industry *i = GetIndustry(*(const uint16*)a);
+	Industry *j = GetIndustry(*(const uint16*)b);
 	int r = 0;
 
 	switch (_industry_sort_order >> 1) {
@@ -457,13 +456,16 @@ static int CDECL GeneralIndustrySorter(const void *a, const void *b)
 static void MakeSortedIndustryList()
 {
 	Industry *i;
-	int n = 0, index = 0;
+	int n = 0;
+
+	/* Create array for sorting */
+	_industry_sort = realloc(_industry_sort, _industries_size * sizeof(_industry_sort[0]));
+	if (_industry_sort == NULL)
+		error("Could not allocate memory for the industry-sorting-list");
 
 	FOR_ALL_INDUSTRIES(i) {
 		if(i->xy)
-			_industry_sort[n++] = index;
-
-		index++;
+			_industry_sort[n++] = i->index;
 	}
 	_num_industry_sort = n;
 	_last_industry_idx = 0xFFFF; // used for "cache"
@@ -497,7 +499,7 @@ static void IndustryDirectoryWndProc(Window *w, WindowEvent *e)
 		n = 0;
 
 		while (p < _num_industry_sort) {
-			i = DEREF_INDUSTRY(_industry_sort[p]);
+			i = GetIndustry(_industry_sort[p]);
 			SetDParam(0, i->town->index);
 			SetDParam(1, i->type + STR_4802_COAL_MINE);
 			if (i->produced_cargo[0] != 0xFF) {
@@ -558,7 +560,7 @@ static void IndustryDirectoryWndProc(Window *w, WindowEvent *e)
 				return;
 			p = y + w->vscroll.pos;
 			if (p < _num_industry_sort) {
-				c = DEREF_INDUSTRY(_industry_sort[p]);
+				c = GetIndustry(_industry_sort[p]);
 				ScrollMainWindowToTile(c->xy);
 			}
 		} break;
diff --git a/misc.c b/misc.c
index b0b9d0eb6..00f8e5739 100644
--- a/misc.c
+++ b/misc.c
@@ -607,6 +607,7 @@ static const uint16 _autosave_months[] = {
 
 void IncreaseDate()
 {
+	const int vehicles_per_day = (1 << (sizeof(_date_fract) * 8)) / 885;
 	int i,ctr,t;
 	YearMonthDay ymd;
 
@@ -621,15 +622,15 @@ void IncreaseDate()
 		65536 / 885 = 74; 74x12 = 888. So max 888. Any vehicles above that were not _on_new_vehicle_day_proc'd
 		eg. aged.
 		So new code updates it for max vehicles.
-		(NUM_VEHICLES / maximum number of times ctr is incremented before reset ) + 1 (to get last vehicles too)
+		(_vehicles_size / maximum number of times ctr is incremented before reset ) + 1 (to get last vehicles too)
 		max size of _date_fract / 885 (added each tick) is number of times before ctr is reset.
 		Calculation might look complicated, but compiler just replaces it with 35, so that's ok
 	*/
 
 	ctr = _vehicle_id_ctr_day;
-	for(i=0; i!=(NUM_VEHICLES / ((1<<sizeof(_date_fract)*8) / 885)) + 1 && ctr != lengthof(_vehicles); i++) {
-		Vehicle *v = &_vehicles[ctr++];
-		if ((t=v->type) != 0)
+	for (i = 0; i != (_vehicles_size / vehicles_per_day) + 1 && ctr != _vehicles_size; i++) {
+		Vehicle *v = GetVehicle(ctr++);
+		if ((t = v->type) != 0)
 			_on_new_vehicle_day_proc[t - 0x10](v);
 	}
 	_vehicle_id_ctr_day = ctr;
@@ -637,7 +638,8 @@ void IncreaseDate()
 	/* increase day, and check if a new day is there? */
 	_tick_counter++;
 
-	if ( (_date_fract += 885) >= 885)
+	_date_fract += 885;
+	if (_date_fract >= 885)
 		return;
 
 	/* yeah, increse day counter and call various daily loops */
diff --git a/news_gui.c b/news_gui.c
index 5359d8bad..a09c59e34 100644
--- a/news_gui.c
+++ b/news_gui.c
@@ -165,7 +165,7 @@ static void NewsWindowProc(Window *w, WindowEvent *e)
 		case 0: {
 			NewsItem *ni = WP(w, news_d).ni;
 			if (ni->flags & NF_VEHICLE) {
-				Vehicle *v = &_vehicles[ni->data_a];
+				Vehicle *v = GetVehicle(ni->data_a);
 				ScrollMainWindowTo(v->x_pos, v->y_pos);
 			} else if (ni->flags & NF_TILE) {
 				if (!ScrollMainWindowToTile(ni->data_a) && ni->data_b != 0)
diff --git a/oldloader.c b/oldloader.c
index 08d2cb4e8..d84ce5e9a 100644
--- a/oldloader.c
+++ b/oldloader.c
@@ -504,7 +504,7 @@ assert_compile(sizeof(OldMain) == 487801 + 256*256*2);
 #endif
 
 #define REMAP_TOWN_IDX(x) (x - (0x0459154 - 0x0458EF0)) / sizeof(OldTown)
-#define REMAP_TOWN_PTR(x) DEREF_TOWN( REMAP_TOWN_IDX(x) )
+#define REMAP_TOWN_PTR(x) GetTown( REMAP_TOWN_IDX(x) )
 
 #define REMAP_ORDER_IDX(x) (x - (0x045AB08 - 0x0458EF0)) / sizeof(uint16)
 
@@ -584,9 +584,14 @@ static void LoadSavegameBytes(void *p, size_t count)
 
 extern uint32 GetOldTownName(uint32 townnameparts, byte old_town_name_type);
 
-static void FixTown(Town *t, OldTown *o, int num, byte town_name_type)
+static void FixTown(OldTown *o, int num, byte town_name_type)
 {
+	Town *t;
+	uint i;
+
 	do {
+		t = GetTown(i);
+
 		t->xy = o->xy;
 		t->population = o->population;
 		t->townnametype = o->townnametype;
@@ -622,12 +627,17 @@ static void FixTown(Town *t, OldTown *o, int num, byte town_name_type)
 		t->act_water = o->act_water;
 		t->road_build_months = o->road_build_months;
 		t->fund_buildings_months = o->fund_buildings_months;
-	} while (t++,o++,--num);
+	} while (i++,o++,--num);
 }
 
-static void FixIndustry(Industry *i, OldIndustry *o, int num)
+static void FixIndustry(OldIndustry *o, int num)
 {
+	Industry *i;
+	uint j = 0;
+
 	do {
+		i = GetIndustry(j);
+
 		i->xy = o->xy;
 		i->town = REMAP_TOWN_PTR(o->town);
 		i->width = o->width;
@@ -664,7 +674,7 @@ static void FixIndustry(Industry *i, OldIndustry *o, int num)
 		i->last_prod_year = o->last_prod_year;
 		i->counter = o->counter;
 		i->was_cargo_delivered = o->was_cargo_delivered;
-	} while (i++,o++,--num);
+	} while (j++,o++,--num);
 }
 
 static void FixGoodsEntry(GoodsEntry *g, OldGoodsEntry *o, int num)
@@ -680,9 +690,14 @@ static void FixGoodsEntry(GoodsEntry *g, OldGoodsEntry *o, int num)
 	} while (g++,o++,--num);
 }
 
-static void FixStation(Station *s, OldStation *o, int num)
+static void FixStation(OldStation *o, int num)
 {
+	Station *s;
+	uint i = 0;
+
 	do {
+		s = GetStation(i);
+
 		s->xy = o->xy;
 		s->town = REMAP_TOWN_PTR(o->town);
 		s->bus_tile = o->bus_tile;
@@ -713,7 +728,7 @@ static void FixStation(Station *s, OldStation *o, int num)
 		s->blocked_months_obsolete = o->blocked_months_obsolete;
 		s->airport_flags = o->airport_flags;
 		s->last_vehicle = o->last_vehicle;
-	} while (s++,o++,--num);
+	} while (i++,o++,--num);
 }
 
 static void FixDepot(Depot *n, OldDepot *o, int num)
@@ -724,9 +739,14 @@ static void FixDepot(Depot *n, OldDepot *o, int num)
 	} while (n++,o++,--num);
 }
 
-static void FixVehicle(Vehicle *n, OldVehicle *o, int num)
+static void FixVehicle(OldVehicle *o, int num)
 {
+	Vehicle *n;
+	uint i = 0;
+
 	do {
+		n = GetVehicle(i);
+
 		n->type = o->type;
 		n->subtype = o->subtype;
 
@@ -793,7 +813,7 @@ static void FixVehicle(Vehicle *n, OldVehicle *o, int num)
 		n->reliability_spd_dec = o->reliability_spd_dec;
 		n->profit_this_year = o->profit_this_year;
 		n->profit_last_year = o->profit_last_year;
-		n->next = o->next_in_chain == 0xffff ? NULL : &_vehicles[o->next_in_chain];
+		n->next = (o->next_in_chain == 0xFFFF) ? NULL : GetVehicle(o->next_in_chain);
 		n->value = o->value;
 		n->string_id = RemapOldStringID(o->string_id);
 
@@ -833,7 +853,7 @@ static void FixVehicle(Vehicle *n, OldVehicle *o, int num)
 			n->u.disaster.unk2 = o->u.disaster.unk2;
 			break;
 		}
-	} while (n++,o++,--num);
+	} while (i++,o++,--num);
 }
 
 static void FixSubsidy(Subsidy *n, OldSubsidy *o, int num)
@@ -1407,12 +1427,12 @@ bool LoadOldSaveGame(const char *file)
 		_order_array[i] = UnpackOldOrder(m->order_list[i]);
 	_ptr_to_next_order = _order_array + REMAP_ORDER_IDX(m->ptr_to_next_order);
 
-	FixTown(_towns, m->town_list, lengthof(m->town_list), m->town_name_type);
-	FixIndustry(_industries, m->industries, lengthof(m->industries));
-	FixStation(_stations, m->stations, lengthof(m->stations));
+	FixTown(m->town_list, lengthof(m->town_list), m->town_name_type);
+	FixIndustry(m->industries, lengthof(m->industries));
+	FixStation(m->stations, lengthof(m->stations));
 
 	FixDepot(_depots, m->depots, lengthof(m->depots));
-	FixVehicle(_vehicles, m->vehicles, lengthof(m->vehicles));
+	FixVehicle(m->vehicles, lengthof(m->vehicles));
 	FixSubsidy(_subsidies, m->subsidies, lengthof(m->subsidies));
 
 	FixPlayer(_players, m->players, lengthof(m->players), m->town_name_type);
diff --git a/order_cmd.c b/order_cmd.c
index f3f1e7b4e..d7a7abb3c 100644
--- a/order_cmd.c
+++ b/order_cmd.c
@@ -13,7 +13,7 @@
  */
 int32 CmdInsertOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1 & 0xFFFF];
+	Vehicle *v = GetVehicle(p1 & 0xFFFF);
 	int sel = p1 >> 16;
 	Order new_order = UnpackOrder(p2);
 
@@ -26,8 +26,8 @@ int32 CmdInsertOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 			sel != 0 && v->schedule_ptr[sel - 1].type == OT_GOTO_STATION) {
 
 		int dist = GetTileDist(
-			DEREF_STATION(v->schedule_ptr[sel - 1].station)->xy,
-			DEREF_STATION(new_order.station)->xy
+			GetStation(v->schedule_ptr[sel - 1].station)->xy,
+			GetStation(new_order.station)->xy
 		);
 		if (dist >= 130)
 			return_cmd_error(STR_0210_TOO_FAR_FROM_PREVIOUS_DESTINATIO);
@@ -94,7 +94,7 @@ static int32 DecloneOrder(Vehicle *dst, uint32 flags)
  */
 int32 CmdDeleteOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1], *u;
+	Vehicle *v = GetVehicle(p1), *u;
 	uint sel = (uint)p2;
 
 	_error_message = STR_EMPTY;
@@ -141,7 +141,7 @@ int32 CmdDeleteOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 int32 CmdSkipOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	if (flags & DC_EXEC) {
-		Vehicle *v = &_vehicles[p1];
+		Vehicle *v = GetVehicle(p1);
 
 		{
 			byte b = v->cur_order_index + 1;
@@ -168,7 +168,7 @@ int32 CmdSkipOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
  */
 int32 CmdModifyOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1];
+	Vehicle *v = GetVehicle(p1);
 	byte sel = (byte)p2;
 	Order *sched;
 
@@ -219,7 +219,7 @@ int32 CmdModifyOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 int32 CmdCloneOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *dst = &_vehicles[p1 & 0xFFFF];
+	Vehicle *dst = GetVehicle(p1 & 0xFFFF);
 
 	if (!(dst->type && dst->owner == _current_player))
 		return CMD_ERROR;
@@ -228,7 +228,7 @@ int32 CmdCloneOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	// share vehicle orders?
 	case 0: {
-		Vehicle *src = &_vehicles[p1 >> 16];
+		Vehicle *src = GetVehicle(p1 >> 16);
 
 		// sanity checks
 		if (!(src->owner == _current_player && dst->type == src->type && dst != src))
@@ -255,7 +255,7 @@ int32 CmdCloneOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	// copy vehicle orders?
 	case 1: {
-		Vehicle *src = &_vehicles[p1 >> 16];
+		Vehicle *src = GetVehicle(p1 >> 16);
 		int delta;
 
 		// sanity checks
@@ -269,7 +269,7 @@ int32 CmdCloneOrder(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 			for (i = src->schedule_ptr; i->type != OT_NOTHING; ++i) {
 				if (i->type == OT_GOTO_STATION) {
-					const Station *st = DEREF_STATION(i->station);
+					const Station *st = GetStation(i->station);
 					required_dst = (dst->cargo_type == CT_PASSENGERS) ? st->bus_tile : st->lorry_tile;
 					if ( !required_dst )
 						return CMD_ERROR;
@@ -366,7 +366,7 @@ int32 CmdRestoreOrderIndex(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	// nonsense to update the windows, since, train rebought will have its window deleted
 	if (flags & DC_EXEC) {
-		Vehicle *v = &_vehicles[p1];
+		Vehicle *v = GetVehicle(p1);
 		v->service_interval = (uint16)(p2>>16);
 		v->cur_order_index = (byte)(p2&0xFFFF);
 	}
@@ -415,7 +415,7 @@ int CheckOrders(Vehicle *v)
 				//I uncommented this in order not to get two error messages
 				//when two identical entries are in the list
 				n_st++;
-				st = DEREF_STATION(order.station);
+				st = GetStation(order.station);
 				required_tile = GetStationTileForVehicle(v,st);
 				if (!required_tile) problem_type = 3;
 			}
diff --git a/order_gui.c b/order_gui.c
index 6f3dd3962..ac97db175 100644
--- a/order_gui.c
+++ b/order_gui.c
@@ -13,7 +13,7 @@
 
 static int OrderGetSel(Window *w)
 {
-	Vehicle *v = &_vehicles[w->window_number];
+	Vehicle *v = GetVehicle(w->window_number);
 	const Order *sched = v->schedule_ptr;
 	int num = WP(w,order_d).sel;
 	int count = 0;
@@ -41,7 +41,7 @@ static void DrawOrdersWindow(Window *w)
 	StringID str;
 	bool shared_schedule;
 
-	v = &_vehicles[w->window_number];
+	v = GetVehicle(w->window_number);
 
 	w->disabled_state = (v->owner == _local_player) ? 0 : 0x3F0;
 
@@ -237,7 +237,7 @@ static Order GetOrderCmdFromTile(Vehicle *v, uint tile)
 	}
 
 	if (IS_TILETYPE(tile, MP_STATION)) {
-		st = DEREF_STATION(st_index = _map2[tile]);
+		st = GetStation(st_index = _map2[tile]);
 
 		if (st->owner == _current_player || st->owner == OWNER_NONE) {
 			byte facil;
@@ -314,7 +314,7 @@ static void OrdersWndProc(Window *w, WindowEvent *e)
 		break;
 
 	case WE_CLICK: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		int mode;
 		switch(e->click.widget) {
 		case 2:	{/* orders list */
@@ -331,7 +331,7 @@ static void OrdersWndProc(Window *w, WindowEvent *e)
 				int xy = 0;
 				switch (ord.type) {
 				case OT_GOTO_STATION:			/* station order */
-					xy = _stations[ord.station].xy ;
+					xy = GetStation(ord.station)->xy ;
 					break;
 				case OT_GOTO_DEPOT:				/* goto depot order */
 					xy = _depots[ord.station].xy;
@@ -389,7 +389,7 @@ static void OrdersWndProc(Window *w, WindowEvent *e)
 
 
 	case WE_RCLICK: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		if (e->click.widget != 8) break;
 		if (v->schedule_ptr[OrderGetSel(w)].type == OT_GOTO_DEPOT)
 			GuiShowTooltips(STR_SERVICE_HINT);
@@ -403,7 +403,7 @@ static void OrdersWndProc(Window *w, WindowEvent *e)
 	} break;
 
 	case WE_PLACE_OBJ: {
-		OrdersPlaceObj(&_vehicles[w->window_number], e->place.tile, w);
+		OrdersPlaceObj(GetVehicle(w->window_number), e->place.tile, w);
 	} break;
 
 	case WE_ABORT_PLACE_OBJ: {
@@ -424,7 +424,7 @@ static void OrdersWndProc(Window *w, WindowEvent *e)
 		 */
 		if (v && HASBIT(w->click_state, 7)) {
 			_place_clicked_vehicle = NULL;
-			HandleOrderVehClick(&_vehicles[w->window_number], v, w);
+			HandleOrderVehClick(GetVehicle(w->window_number), v, w);
 		}
 	} break;
 
diff --git a/rail_cmd.c b/rail_cmd.c
index bc71e40c4..763dd0965 100644
--- a/rail_cmd.c
+++ b/rail_cmd.c
@@ -1453,7 +1453,7 @@ static Station *ComposeWaypointStation(uint tile)
 
 	stat.train_tile = stat.xy = waypt->xy;
 	/* FIXME - We should always keep town. */
-	stat.town = waypt->town_or_string & 0xC000 ? &_towns[waypt->town_or_string & 0xFF] : NULL;
+	stat.town = waypt->town_or_string & 0xC000 ? GetTown(waypt->town_or_string & 0xFF) : NULL;
 	stat.string_id = waypt->town_or_string & 0xC000 ? /* FIXME? */ 0 : waypt->town_or_string;
 	stat.build_date = waypt->build_date;
 	stat.class_id = 6; stat.stat_id = waypt->stat_id;
diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index 3a44d4f74..e7b42e574 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -199,7 +199,7 @@ int32 CmdStartStopRoadVeh(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (v->type != VEH_Road || !CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -213,7 +213,7 @@ int32 CmdStartStopRoadVeh(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	return 0;
 }
 
-//  p1 = vehicle index in &_vehicles[]
+//  p1 = vehicle index in GetVehicle()
 //  p2 not used
 int32 CmdSellRoadVeh(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
@@ -221,7 +221,7 @@ int32 CmdSellRoadVeh(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (v->type != VEH_Road || !CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -291,7 +291,7 @@ static int FindClosestRoadDepot(Vehicle *v)
 
 int32 CmdSendRoadVehToDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1];
+	Vehicle *v = GetVehicle(p1);
 	int depot;
 
 	if (v->type != VEH_Road || !CheckOwnership(v->owner))
@@ -327,7 +327,7 @@ int32 CmdTurnRoadVeh(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (v->type != VEH_Road || !CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -352,7 +352,7 @@ int32 CmdChangeRoadVehServiceInt(int x, int y, uint32 flags, uint32 p1, uint32 p
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (v->type != VEH_Road || !CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -396,7 +396,7 @@ static void UpdateRoadVehDeltaXY(Vehicle *v)
 static void ClearCrashedStation(Vehicle *v)
 {
 	uint tile = v->tile;
-	Station *st = DEREF_STATION(_map2[tile]);
+	Station *st = GetStation(_map2[tile]);
 	byte *b, bb;
 
 	b = (_map5[tile] >= 0x47) ? &st->bus_stop_status : &st->truck_stop_status;
@@ -594,7 +594,7 @@ static void ProcessRoadVehOrder(Vehicle *v)
 	if (order.type == OT_GOTO_STATION) {
 		if (order.station == v->last_station_visited)
 			v->last_station_visited = 0xFFFF;
-		st = DEREF_STATION(order.station);
+		st = GetStation(order.station);
 		v->dest_tile = v->cargo_type==CT_PASSENGERS ? st->bus_tile : st->lorry_tile;
 	} else if (order.type == OT_GOTO_DEPOT) {
 		v->dest_tile = _depots[order.station].xy;
@@ -951,7 +951,7 @@ static int RoadFindPathToDest(Vehicle *v, uint tile, int direction)
 	} else if (IS_TILETYPE(tile, MP_STATION)) {
 		if (_map_owner[tile] == OWNER_NONE || _map_owner[tile] == v->owner) {
 			/* Our station */
-			Station *st = DEREF_STATION(_map2[tile]);
+			Station *st = GetStation(_map2[tile]);
 			byte val = _map5[tile];
 			if (v->cargo_type != CT_PASSENGERS) {
 				if (IS_BYTE_INSIDE(val, 0x43, 0x47) && (_patches.roadveh_queue || st->truck_stop_status&3))
@@ -1211,7 +1211,7 @@ again:
 		if (IS_BYTE_INSIDE(v->u.road.state, 0x20, 0x30) && IS_TILETYPE(v->tile, MP_STATION)) {
 			if ((tmp&7) >= 6) { v->cur_speed = 0; return; }
 			if (IS_BYTE_INSIDE(_map5[v->tile], 0x43, 0x4B)) {
-				Station *st = DEREF_STATION(_map2[v->tile]);
+				Station *st = GetStation(_map2[v->tile]);
 				byte *b;
 
 				if (_map5[v->tile] >= 0x47) {
@@ -1307,7 +1307,7 @@ again:
 			_road_veh_data_1[v->u.road.state - 0x20 + (_opt.road_side<<4)] == v->u.road.frame) {
 		byte *b;
 
-		st = DEREF_STATION(_map2[v->tile]);
+		st = GetStation(_map2[v->tile]);
 		b = IS_BYTE_INSIDE(_map5[v->tile], 0x43, 0x47) ? &st->truck_stop_status : &st->bus_stop_status;
 
 		if (v->current_order.type != OT_LEAVESTATION &&
@@ -1487,7 +1487,7 @@ void OnNewDay_RoadVeh(Vehicle *v)
 
 	/* update destination */
 	if (v->current_order.type == OT_GOTO_STATION) {
-		st = DEREF_STATION(v->current_order.station);
+		st = GetStation(v->current_order.station);
 		if ((tile=(v->cargo_type==CT_PASSENGERS ? st->bus_tile : st->lorry_tile)) != 0)
 			v->dest_tile = tile;
 	}
diff --git a/roadveh_gui.c b/roadveh_gui.c
index 58c6abe86..f55e1fef5 100644
--- a/roadveh_gui.c
+++ b/roadveh_gui.c
@@ -45,7 +45,7 @@ static void DrawRoadVehImage(Vehicle *v, int x, int y, VehicleID selection)
 
 static void RoadVehDetailsWndProc(Window *w, WindowEvent *e)
 {
-	Vehicle *v = &_vehicles[w->window_number];
+	Vehicle *v = GetVehicle(w->window_number);
 	StringID str;
 	int mod;
 
@@ -204,7 +204,7 @@ static void RoadVehViewWndProc(Window *w, WindowEvent *e)
 {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		StringID str;
 
 		w->disabled_state = (v->owner != _local_player) ? (1<<8 | 1<<7) : 0;
@@ -258,7 +258,7 @@ static void RoadVehViewWndProc(Window *w, WindowEvent *e)
 	} break;
 
 	case WE_CLICK: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 
 		switch(e->click.widget) {
 		case 5: /* start stop */
@@ -380,7 +380,7 @@ void CcBuildRoadVeh(bool success, uint tile, uint32 p1, uint32 p2)
 
 	if (!success) return;
 
-	v = &_vehicles[_new_roadveh_id];
+	v = GetVehicle(_new_roadveh_id);
 	if (v->tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
@@ -665,7 +665,7 @@ static void RoadDepotWndProc(Window *w, WindowEvent *e)
 
 				HandleButtonClick(w, 5);
 
-				v = &_vehicles[WP(w,traindepot_d).sel];
+				v = GetVehicle(WP(w,traindepot_d).sel);
 				WP(w,traindepot_d).sel = INVALID_VEHICLE;
 
 				_backup_orders_tile = v->tile;
@@ -800,7 +800,7 @@ static void PlayerRoadVehWndProc(Window *w, WindowEvent *e)
 				w->widget[1].unkA = STR_9001_ROAD_VEHICLES;
 			} else {
 				/* Station Name -- (###) Road vehicles */
-				SetDParam(0, DEREF_STATION(station)->index);
+				SetDParam(0, GetStation(station)->index);
 				SetDParam(1, w->vscroll.count);
 				w->widget[1].unkA = STR_SCHEDULED_ROAD_VEHICLES;
 			}
@@ -814,7 +814,7 @@ static void PlayerRoadVehWndProc(Window *w, WindowEvent *e)
 
 		max = min(w->vscroll.pos + w->vscroll.cap, vl->list_length);
 		for (i = w->vscroll.pos; i < max; ++i) {
-			Vehicle *v = DEREF_VEHICLE(vl->sort_list[i].index);
+			Vehicle *v = GetVehicle(vl->sort_list[i].index);
 			StringID str;
 
 			assert(v->type == VEH_Road && v->owner == owner);
@@ -865,7 +865,7 @@ static void PlayerRoadVehWndProc(Window *w, WindowEvent *e)
 
 				if (id_v >= vl->list_length) return; // click out of list bound
 
-				v	= DEREF_VEHICLE(vl->sort_list[id_v].index);
+				v	= GetVehicle(vl->sort_list[id_v].index);
 
 				assert(v->type == VEH_Road && v->owner == owner);
 
diff --git a/ship_cmd.c b/ship_cmd.c
index d336031bb..7b22502fa 100644
--- a/ship_cmd.c
+++ b/ship_cmd.c
@@ -243,7 +243,7 @@ static void ProcessShipOrder(Vehicle *v)
 		if (order.station == v->last_station_visited)
 			v->last_station_visited = 0xFFFF;
 
-		st = DEREF_STATION(order.station);
+		st = GetStation(order.station);
 		if (st->dock_tile != 0) {
 			v->dest_tile = TILE_ADD(st->dock_tile, ToTileIndexDiff(_dock_offs[_map5[st->dock_tile]-0x4B]));
 		}
@@ -679,7 +679,7 @@ static void ShipController(Vehicle *v)
 					v->last_station_visited = v->current_order.station;
 
 					/* Process station in the schedule. Don't do that for buoys (HVOT_BUOY) */
-					st = DEREF_STATION(v->current_order.station);
+					st = GetStation(v->current_order.station);
 					if (!(st->had_vehicle_of_type & HVOT_BUOY)
 							&& (st->facilities & FACIL_DOCK)) { /* ugly, ugly workaround for problem with ships able to drop off cargo at wrong stations */
 						v->current_order.type = OT_LOADING;
@@ -884,7 +884,7 @@ int32 CmdSellShip(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -908,7 +908,7 @@ int32 CmdStartStopShip(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -927,7 +927,7 @@ int32 CmdSendShipToDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	Vehicle *v;
 	int depot;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -960,7 +960,7 @@ int32 CmdChangeShipServiceInt(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -986,7 +986,7 @@ int32 CmdRefitShip(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	p2 = p2 & 0xFF;
 	SET_EXPENSES_TYPE(EXPENSES_SHIP_RUN);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
 
diff --git a/ship_gui.c b/ship_gui.c
index d69e9a4f2..f08b3e0d9 100644
--- a/ship_gui.c
+++ b/ship_gui.c
@@ -46,7 +46,7 @@ static void ShipRefitWndProc(Window *w, WindowEvent *e)
 {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		const byte *b;
 		int sel;
 		int x,y;
@@ -123,7 +123,7 @@ static void ShipRefitWndProc(Window *w, WindowEvent *e)
 			} break;
 		case 4: /* refit button */
 			if (WP(w,refit_d).cargo != 0xFF) {
-				Vehicle *v = &_vehicles[w->window_number];
+				Vehicle *v = GetVehicle(w->window_number);
 				if (DoCommandP(v->tile, v->index, WP(w,refit_d).cargo, NULL, CMD_REFIT_SHIP | CMD_MSG(STR_9841_CAN_T_REFIT_SHIP)))
 					DeleteWindow(w);
 			}
@@ -166,7 +166,7 @@ static void ShowShipRefitWindow(Vehicle *v)
 
 static void ShipDetailsWndProc(Window *w, WindowEvent *e)
 {
-	Vehicle *v = &_vehicles[w->window_number];
+	Vehicle *v = GetVehicle(w->window_number);
 	StringID str;
 	int mod;
 
@@ -326,7 +326,7 @@ void CcBuildShip(bool success, uint tile, uint32 p1, uint32 p2)
 	Vehicle *v;
 	if (!success) return;
 
-	v = &_vehicles[_new_ship_id];
+	v = GetVehicle(_new_ship_id);
 	if (v->tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
@@ -484,7 +484,7 @@ static void ShowBuildShipWindow(TileIndex tile)
 static void ShipViewWndProc(Window *w, WindowEvent *e) {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		uint32 disabled = 1<<8;
 		StringID str;
 
@@ -546,7 +546,7 @@ static void ShipViewWndProc(Window *w, WindowEvent *e) {
 	} break;
 
 	case WE_CLICK: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 
 		switch(e->click.widget) {
 		case 5: /* start stop */
@@ -799,7 +799,7 @@ static void ShipDepotWndProc(Window *w, WindowEvent *e) {
 
 				HandleButtonClick(w, 5);
 
-				v = &_vehicles[WP(w,traindepot_d).sel];
+				v = GetVehicle(WP(w,traindepot_d).sel);
 				WP(w,traindepot_d).sel = INVALID_VEHICLE;
 
 				_backup_orders_tile = v->tile;
@@ -882,7 +882,7 @@ static void DrawSmallShipSchedule(Vehicle *v, int x, int y) {
 		sel--;
 
 		if (sched->type == OT_GOTO_STATION) {
-			st = DEREF_STATION(sched->station);
+			st = GetStation(sched->station);
 
 			if (!(st->had_vehicle_of_type & HVOT_BUOY)) {
 				SetDParam(0, sched->station);
@@ -962,7 +962,7 @@ static void PlayerShipsWndProc(Window *w, WindowEvent *e)
 				w->widget[1].unkA = STR_9805_SHIPS;
 			} else {
 				/* Station Name -- (###) Trains */
-				SetDParam(0, DEREF_STATION(station)->index);
+				SetDParam(0, GetStation(station)->index);
 				SetDParam(1, w->vscroll.count);
 				w->widget[1].unkA = STR_SCHEDULED_SHIPS;
 			}
@@ -976,7 +976,7 @@ static void PlayerShipsWndProc(Window *w, WindowEvent *e)
 
 		max = min(w->vscroll.pos + w->vscroll.cap, vl->list_length);
 		for (i = w->vscroll.pos; i < max; ++i) {
-			Vehicle *v = DEREF_VEHICLE(vl->sort_list[i].index);
+			Vehicle *v = GetVehicle(vl->sort_list[i].index);
 			StringID str;
 
 			assert(v->type == VEH_Ship);
@@ -1028,7 +1028,7 @@ static void PlayerShipsWndProc(Window *w, WindowEvent *e)
 
 				if (id_v >= vl->list_length) return; // click out of list bound
 
-				v	= DEREF_VEHICLE(vl->sort_list[id_v].index);
+				v	= GetVehicle(vl->sort_list[id_v].index);
 
 				assert(v->type == VEH_Ship);
 
diff --git a/station.h b/station.h
index c6a9179e5..17a0bb4da 100644
--- a/station.h
+++ b/station.h
@@ -94,12 +94,20 @@ void ShowStationViewWindow(int station);
 void UpdateAllStationVirtCoord();
 
 VARDEF Station _stations[250];
-VARDEF bool _station_sort_dirty[MAX_PLAYERS];
-VARDEF bool _global_station_sort_dirty;
+VARDEF uint _stations_size;
+
+VARDEF SortStruct *_station_sort;
 
-#define DEREF_STATION(i) (&_stations[i])
-#define FOR_ALL_STATIONS(st) for(st=_stations; st != endof(_stations); st++)
+static inline Station *GetStation(uint index)
+{
+	assert(index < _stations_size);
+	return &_stations[index];
+}
 
+#define FOR_ALL_STATIONS(st) for(st = _stations; st != &_stations[_stations_size]; st++)
+
+VARDEF bool _station_sort_dirty[MAX_PLAYERS];
+VARDEF bool _global_station_sort_dirty;
 
 void GetProductionAroundTiles(uint *produced, uint tile, int w, int h, int rad);
 void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h, int rad);
diff --git a/station_cmd.c b/station_cmd.c
index 77c92b43d..6f3940f4f 100644
--- a/station_cmd.c
+++ b/station_cmd.c
@@ -25,6 +25,10 @@ const byte _airport_size_y[5] = {3, 6, 1, 6, 7 };
 void ShowAircraftDepotWindow(uint tile);
 extern void UpdateAirplanesOnNewStation(Station *st);
 
+enum {
+	STATIONS_MIN_FREE_FOR_AI = 30
+};
+
 static void MarkStationDirty(Station *st)
 {
 	if (st->sign.width_1 != 0) {
@@ -73,7 +77,7 @@ static Station *GetStationAround(uint tile, int w, int h, int closest_station)
 			int t;
 			t = _map2[tile_cur];
 			{
-				Station *st = DEREF_STATION(t);
+				Station *st = GetStation(t);
 				// you cannot take control of an oilrig!!
 				if (st->airport_type == AT_OILRIG && st->facilities == (FACIL_AIRPORT|FACIL_DOCK))
 					continue;
@@ -87,7 +91,7 @@ static Station *GetStationAround(uint tile, int w, int h, int closest_station)
 			}
 		}
 	END_TILE_LOOP(tile_cur, w + 2, h + 2, tile - TILE_XY(1,1))
-	return (closest_station == -1) ? NULL : DEREF_STATION(closest_station);
+	return (closest_station == -1) ? NULL : GetStation(closest_station);
 }
 
 TileIndex GetStationTileForVehicle(Vehicle *v, Station *st)
@@ -136,20 +140,19 @@ static bool CheckStationSpreadOut(Station *st, uint tile, int w, int h)
 static Station *AllocateStation()
 {
 	Station *st, *a_free = NULL;
-	int count;
 	int num_free = 0;
 	int i;
 
-	for(st = _stations, count = lengthof(_stations); count != 0; count--, st++) {
+	FOR_ALL_STATIONS(st) {
 		if (st->xy == 0) {
 			num_free++;
-			if (a_free==NULL)
+			if (a_free == NULL)
 				a_free = st;
 		}
 	}
 
 	if (a_free == NULL ||
-			(num_free < 30 && IS_HUMAN_PLAYER(_current_player))) {
+			(num_free < STATIONS_MIN_FREE_FOR_AI && IS_HUMAN_PLAYER(_current_player))) {
 		_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;
 		return NULL;
 	}
@@ -961,7 +964,7 @@ int32 CmdRemoveFromRailroadStation(int x, int y, uint32 flags, uint32 p1, uint32
 
 	// make sure the specified tile belongs to the current player, and that it is a railroad station.
 	if (!IS_TILETYPE(tile, MP_STATION) || _map5[tile] >= 8 || !_patches.nonuniform_stations) return CMD_ERROR;
-	st = DEREF_STATION(_map2[tile]);
+	st = GetStation(_map2[tile]);
 	if (_current_player != OWNER_WATER && (!CheckOwnership(st->owner) || !EnsureNoVehicle(tile))) return CMD_ERROR;
 
 	// if we reached here, it means we can actually delete it. do that.
@@ -1225,7 +1228,7 @@ int32 DoConvertStationRail(uint tile, uint totype, bool exec)
 {
 	Station *st;
 
-	st = DEREF_STATION(_map2[tile]);
+	st = GetStation(_map2[tile]);
 	if (!CheckOwnership(st->owner) || !EnsureNoVehicle(tile)) return CMD_ERROR;
 
 	// tile is not a railroad station?
@@ -1967,7 +1970,7 @@ static void DrawTile_Station(TileInfo *ti)
 		//debug("Cust-o-mized %p", statspec);
 
 		if (statspec != NULL) {
-			Station *st = DEREF_STATION(_map2[ti->tile]);
+			Station *st = GetStation(_map2[ti->tile]);
 
 			relocation = GetCustomStationRelocation(statspec, st, 0);
 			//debug("Relocation %d", relocation);
@@ -2052,7 +2055,7 @@ static void GetTileDesc_Station(uint tile, TileDesc *td)
 	StringID str;
 
 	td->owner = _map_owner[tile];
-	td->build_date = DEREF_STATION(_map2[tile])->build_date;
+	td->build_date = GetStation(_map2[tile])->build_date;
 
 	m5 = _map5[tile];
 	(str=STR_305E_RAILROAD_STATION, m5 < 8) ||
@@ -2207,7 +2210,7 @@ static uint32 VehicleEnter_Station(Vehicle *v, uint tile, int x, int y)
 		}
 	} else if (v->type == VEH_Road) {
 		if (v->u.road.state < 16 && (v->u.road.state&4)==0 && v->u.road.frame==0) {
-			Station *st = DEREF_STATION(_map2[tile]);
+			Station *st = GetStation(_map2[tile]);
 			byte m5 = _map5[tile];
 			byte *b, bb,state;
 
@@ -2327,7 +2330,7 @@ static void UpdateStationRating(Station *st)
 			{
 				byte days = ge->days_since_pickup;
 				if (st->last_vehicle != INVALID_VEHICLE &&
-						(&_vehicles[st->last_vehicle])->type == VEH_Ship)
+						GetVehicle(st->last_vehicle)->type == VEH_Ship)
 							days >>= 2;
 				(days > 21) ||
 				(rating += 25, days > 12) ||
@@ -2408,10 +2411,10 @@ void OnTick_Station()
 		return;
 
 	i = _station_tick_ctr;
-	if (++_station_tick_ctr == lengthof(_stations))
+	if (++_station_tick_ctr == _stations_size)
 		_station_tick_ctr = 0;
 
-	st = DEREF_STATION(i);
+	st = GetStation(i);
 	if (st->xy != 0)
 		StationHandleBigTick(st);
 
@@ -2466,7 +2469,7 @@ int32 CmdRenameStation(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 		return CMD_ERROR;
 
 	if (flags & DC_EXEC) {
-		st = DEREF_STATION(p1);
+		st = GetStation(p1);
 		old_str = st->string_id;
 		st->string_id = str;
 		UpdateStationVirtCoord(st);
@@ -2520,7 +2523,7 @@ uint MoveGoodsToStation(uint tile, int w, int h, int type, uint amount)
 			st_index = _map2[cur_tile];
 			for(i=0; i!=8; i++)	{
 				if (around[i] == 0xFF) {
-					st = DEREF_STATION(st_index);
+					st = GetStation(st_index);
 					if ((st->had_vehicle_of_type & HVOT_BUOY) == 0 &&
 							( !st->town->exclusive_counter || (st->town->exclusivity == st->owner) ) && // check exclusive transport rights
 							st->goods[type].rating != 0 &&
@@ -2673,7 +2676,7 @@ void BuildOilRig(uint tile)
 
 void DeleteOilRig(uint tile)
 {
-	Station *st = DEREF_STATION(_map2[tile]);
+	Station *st = GetStation(_map2[tile]);
 
 	DoClearSquare(tile);
 
@@ -2691,7 +2694,7 @@ static void ChangeTileOwner_Station(uint tile, byte old_player, byte new_player)
 		return;
 
 	if (new_player != 255) {
-		Station *st = DEREF_STATION(_map2[tile]);
+		Station *st = GetStation(_map2[tile]);
 		_map_owner[tile] = new_player;
 		st->owner = new_player;
 		_global_station_sort_dirty = true; // transfer ownership of station to another player
@@ -2716,7 +2719,7 @@ static int32 ClearTile_Station(uint tile, byte flags) {
 		return_cmd_error(STR_4800_IN_THE_WAY);
 	}
 
-	st = DEREF_STATION(_map2[tile]);
+	st = GetStation(_map2[tile]);
 
 	if (m5 < 8)
 		return RemoveRailroadStation(st, tile, flags);
@@ -2744,10 +2747,13 @@ static int32 ClearTile_Station(uint tile, byte flags) {
 void InitializeStations()
 {
 	int i;
+	Station *s;
+
+	memset(_stations, 0, sizeof(_stations[0]) * _stations_size);
 
-	memset(_stations, 0, sizeof(_stations));
-	for(i = 0; i != lengthof(_stations); i++)
-		_stations[i].index=i;
+	i = 0;
+	FOR_ALL_STATIONS(s)
+		s->index = i++;
 
 	_station_tick_ctr = 0;
 
@@ -2843,7 +2849,7 @@ static void SaveLoad_STNS(Station *st)
 static void Save_STNS()
 {
 	Station *st;
-	// Write the vehicles
+	// Write the stations
 	FOR_ALL_STATIONS(st) {
 		if (st->xy != 0) {
 			SlSetArrayIndex(st->index);
@@ -2856,7 +2862,8 @@ static void Load_STNS()
 {
 	int index;
 	while ((index = SlIterateArray()) != -1) {
-		Station *st = &_stations[index];
+		Station *st = GetStation(index);
+
 		SaveLoad_STNS(st);
 
 		// this means it's an oldstyle savegame without support for nonuniform stations
@@ -2868,6 +2875,11 @@ static void Load_STNS()
 			st->trainst_h = h;
 		}
 	}
+
+	/* This is to ensure all pointers are within the limits of
+	    _stations_size */
+	if (_station_tick_ctr > _stations_size)
+		_station_tick_ctr = 0;
 }
 
 const ChunkHandler _station_chunk_handlers[] = {
diff --git a/station_gui.c b/station_gui.c
index c28bd32e1..6a3a74a54 100644
--- a/station_gui.c
+++ b/station_gui.c
@@ -45,7 +45,6 @@ static void StationsWndShowStationRating(int x, int y, int type, uint acceptance
 	}
 }
 
-static SortStruct _station_sort[lengthof(_stations)];
 static uint16 _num_station_sort[MAX_PLAYERS];
 
 static char _bufcache[64];
@@ -58,14 +57,14 @@ static int CDECL StationNameSorter(const void *a, const void *b)
 	const SortStruct *cmp1 = (const SortStruct*)a;
 	const SortStruct *cmp2 = (const SortStruct*)b;
 
-	st = DEREF_STATION(cmp1->index);
+	st = GetStation(cmp1->index);
 	SetDParam(0, st->town->townnametype);
 	SetDParam(1, st->town->townnameparts);
 	GetString(buf1, st->string_id);
 
 	if ( cmp2->index != _last_station_idx) {
 		_last_station_idx = cmp2->index;
-		st = DEREF_STATION(cmp2->index);
+		st = GetStation(cmp2->index);
 		SetDParam(0, st->town->townnametype);
 		SetDParam(1, st->town->townnameparts);
 		GetString(_bufcache, st->string_id);
@@ -81,7 +80,13 @@ static void GlobalSortStationList()
 	uint16 *i;
 
 	// reset #-of stations to 0 because ++ is used for value-assignment
-	for (i = _num_station_sort; i != endof(_num_station_sort); i++) {*i = 0;}
+	for (i = _num_station_sort; i != endof(_num_station_sort); i++)
+		*i = 0;
+
+	/* Create array for sorting */
+	_station_sort = realloc(_station_sort, _stations_size * sizeof(_station_sort[0]));
+	if (_station_sort == NULL)
+		error("Could not allocate memory for the station-sorting-list");
 
 	FOR_ALL_STATIONS(st) {
 		if(st->xy && st->owner != OWNER_NONE) {
@@ -171,7 +176,7 @@ static void PlayerStationsWndProc(Window *w, WindowEvent *e)
 			assert(i < _num_station_sort[window_number]); // at least one station must exist
 
 			while (i < _num_station_sort[window_number]) {	// do until max number of stations of owner
-				st = DEREF_STATION(_station_sort[i].index);
+				st = GetStation(_station_sort[i].index);
 
 				assert(st->xy && st->owner == window_number);
 
@@ -209,7 +214,7 @@ static void PlayerStationsWndProc(Window *w, WindowEvent *e)
 
 				if (id_v >= _num_station_sort[owner]) { return;} // click out of station bound
 
-				st = DEREF_STATION(_station_sort[id_v].index);
+				st = GetStation(_station_sort[id_v].index);
 
 				assert(st->xy && st->owner == owner);
 
@@ -315,7 +320,7 @@ static void DrawStationViewWindow(Window *w)
 
 	station_id = (byte)w->window_number;
 
-	st = DEREF_STATION(w->window_number);
+	st = GetStation(w->window_number);
 
 	num = 1;
 	for(i=0; i!=NUM_CARGO; i++) {
@@ -449,7 +454,7 @@ static void StationViewWndProc(Window *w, WindowEvent *e)
 	case WE_CLICK:
 		switch(e->click.widget) {
 		case 7:
-			ScrollMainWindowToTile(DEREF_STATION(w->window_number)->xy);
+			ScrollMainWindowToTile(GetStation(w->window_number)->xy);
 			break;
 
 		case 8:
@@ -468,32 +473,32 @@ static void StationViewWndProc(Window *w, WindowEvent *e)
 			break;
 
 		case 9: {
-			Station *st = DEREF_STATION(w->window_number);
+			Station *st = GetStation(w->window_number);
 			SetDParam(0, st->town->townnametype);
 			SetDParam(1, st->town->townnameparts);
 			ShowQueryString(st->string_id, STR_3030_RENAME_STATION_LOADING, 31, 180, w->window_class, w->window_number);
 		}	break;
 
 		case 10: {
-			const Station *st = DEREF_STATION(w->window_number);
+			const Station *st = GetStation(w->window_number);
 			ShowPlayerTrains(st->owner, w->window_number);
 			break;
 		}
 
 		case 11: {
-			const Station *st = DEREF_STATION(w->window_number);
+			const Station *st = GetStation(w->window_number);
 			ShowPlayerRoadVehicles(st->owner, w->window_number);
 			break;
 		}
 
 		case 12: {
-			const Station *st = DEREF_STATION(w->window_number);
+			const Station *st = GetStation(w->window_number);
 			ShowPlayerAircraft(st->owner, w->window_number);
 			break;
 		}
 
 		case 13: {
-			const Station *st = DEREF_STATION(w->window_number);
+			const Station *st = GetStation(w->window_number);
 			ShowPlayerShips(st->owner, w->window_number);
 			break;
 		}
@@ -507,13 +512,13 @@ static void StationViewWndProc(Window *w, WindowEvent *e)
 			return;
 		memcpy(_decode_parameters, b, 32);
 
-		st = DEREF_STATION(w->window_number);
+		st = GetStation(w->window_number);
 		DoCommandP(st->xy, w->window_number, 0, NULL, CMD_RENAME_STATION | CMD_MSG(STR_3031_CAN_T_RENAME_STATION));
 	} break;
 
 	case WE_DESTROY: {
 		WindowNumber wno =
-			(w->window_number << 16) | DEREF_STATION(w->window_number)->owner;
+			(w->window_number << 16) | GetStation(w->window_number)->owner;
 
 		DeleteWindowById(WC_TRAINS_LIST, wno);
 		DeleteWindowById(WC_ROADVEH_LIST, wno);
@@ -540,7 +545,7 @@ void ShowStationViewWindow(int station)
 
 	w = AllocateWindowDescFront(&_station_view_desc, station);
 	if (w) {
-		color = DEREF_STATION(w->window_number)->owner;
+		color = GetStation(w->window_number)->owner;
 		if (color != 0x10)
 			w->caption_color = color;
 		w->vscroll.cap = 5;
diff --git a/strings.c b/strings.c
index ec3a8ea98..ea2c8b345 100644
--- a/strings.c
+++ b/strings.c
@@ -432,7 +432,7 @@ static byte *DecodeString(byte *buff, const byte *str)
 		case 0x9A: { // {STATION}
 			Station *st;
 			InjectDparam(1);
-			st = DEREF_STATION(GetDParam(1));
+			st = GetStation(GetDParam(1));
 			if (!st->xy) { // station doesn't exist anymore
 				buff = GetString(buff, STR_UNKNOWN_DESTINATION);
 				break;
@@ -444,7 +444,7 @@ static byte *DecodeString(byte *buff, const byte *str)
 		}
 		case 0x9B: { // {TOWN}
 			Town *t;
-			t = DEREF_TOWN(GetDParam(0));
+			t = GetTown(GetDParam(0));
 			assert(t->xy);
 			SetDParam(0, t->townnameparts);
 			buff = GetString(buff, t->townnametype);
diff --git a/subsidy_gui.c b/subsidy_gui.c
index 2a8bbf080..e2b822eb2 100644
--- a/subsidy_gui.c
+++ b/subsidy_gui.c
@@ -49,22 +49,22 @@ handle_click:
 	/* determine from coordinate for subsidy and try to scroll to it */
 	offs = s->from;
 	if (s->age >= 12) {
-		xy = DEREF_STATION(offs)->xy;
+		xy = GetStation(offs)->xy;
 	} else if (s->cargo_type == CT_PASSENGERS || s->cargo_type == CT_MAIL) {
-		xy = DEREF_TOWN(offs)->xy;
+		xy = GetTown(offs)->xy;
 	} else {
-		xy = _industries[offs].xy;
+		xy = GetIndustry(offs)->xy;
 
 	}
 	if (!ScrollMainWindowToTile(xy)) {
 		/* otherwise determine to coordinate for subsidy and scroll to it */
 		offs = s->to;
 		if (s->age >= 12) {
-			xy = DEREF_STATION(offs)->xy;
+			xy = GetStation(offs)->xy;
 		} else if (s->cargo_type == CT_PASSENGERS || s->cargo_type == CT_MAIL || s->cargo_type == CT_GOODS || s->cargo_type == CT_FOOD) {
-			xy = DEREF_TOWN(offs)->xy;
+			xy = GetTown(offs)->xy;
 		} else {
-			xy = _industries[offs].xy;
+			xy = GetIndustry(offs)->xy;
 		}
 		ScrollMainWindowToTile(xy);
 	}
@@ -112,7 +112,7 @@ static void DrawSubsidiesWindow(Window *w)
 		if (s->cargo_type != 0xFF && s->age >= 12) {
 			SetupSubsidyDecodeParam(s, 1);
 
-			p = DEREF_PLAYER(DEREF_STATION(s->to)->owner);
+			p = DEREF_PLAYER(GetStation(s->to)->owner);
 			SetDParam(3, p->name_1);
 			SetDParam(4, p->name_2);
 
diff --git a/town.h b/town.h
index 06845fffa..a80f3e11d 100644
--- a/town.h
+++ b/town.h
@@ -91,10 +91,19 @@ enum {
 
 bool CheckforTownRating(uint tile, uint32 flags, Town *t, byte type);
 
-#define DEREF_TOWN(i) (&_towns[i])
-#define FOR_ALL_TOWNS(c) for(c=_towns; c != endof(_towns); c++)
-
 VARDEF Town _towns[70];
+VARDEF uint _towns_size;
+
+VARDEF uint16 *_town_sort;
+
+static inline Town *GetTown(uint index)
+{
+	assert(index < _towns_size);
+	return &_towns[index];
+}
+
+#define FOR_ALL_TOWNS(t) for(t = _towns; t != &_towns[_towns_size]; t++)
+
 VARDEF int _total_towns; // For the AI: the amount of towns active
 
 VARDEF bool _town_sort_dirty;
diff --git a/town_cmd.c b/town_cmd.c
index 116b9d1f5..b7a142ad0 100644
--- a/town_cmd.c
+++ b/town_cmd.c
@@ -401,8 +401,8 @@ void OnTick_Town()
 		return;
 
 	i = _cur_town_ctr;
-	t = DEREF_TOWN(i);
-	if (++i == lengthof(_towns)) i = 0;
+	t = GetTown(i);
+	if (++i == _towns_size) i = 0;
 	_cur_town_ctr = i;
 
 	if (t->xy != 0)
@@ -1354,7 +1354,7 @@ static void ClearTownHouse(Town *t, uint tile) {
 int32 CmdRenameTown(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	StringID str;
-	Town *t = DEREF_TOWN(p1);
+	Town *t = GetTown(p1);
 
 	str = AllocateNameUnique((byte*)_decode_parameters, 4);
 	if (str == 0)
@@ -1602,7 +1602,7 @@ int32 CmdDoTownAction(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	cost = (_price.build_industry >> 8) * _town_action_costs[p2];
 
 	if (flags & DC_EXEC) {
-		_town_action_proc[p2](DEREF_TOWN(p1), p2);
+		_town_action_proc[p2](GetTown(p1), p2);
 		InvalidateWindow(WC_TOWN_AUTHORITY, p1);
 	}
 
@@ -1817,11 +1817,14 @@ void TownsMonthlyLoop()
 void InitializeTowns()
 {
 	Subsidy *s;
+	Town *t;
 	int i;
 
-	memset(_towns, 0, sizeof(_towns));
-	for(i=0; i!=lengthof(_towns); i++)
-		_towns[i].index = i;
+	memset(_towns, 0, sizeof(_towns[0]) * _towns_size);
+
+	i = 0;
+	FOR_ALL_TOWNS(t)
+		t->index = i++;
 
 	memset(_subsidies, 0, sizeof(_subsidies));
 	for (s=_subsidies; s != endof(_subsidies); s++)
@@ -1908,9 +1911,11 @@ static void Save_TOWN()
 {
 	Town *t;
 
-	FOR_ALL_TOWNS(t) if (t->xy != 0) {
-		SlSetArrayIndex(t->index);
-		SlObject(t, _town_desc);
+	FOR_ALL_TOWNS(t) {
+		if (t->xy != 0) {
+			SlSetArrayIndex(t->index);
+			SlObject(t, _town_desc);
+		}
 	}
 }
 
@@ -1918,7 +1923,8 @@ static void Load_TOWN()
 {
 	int index;
 	while ((index = SlIterateArray()) != -1) {
-		Town *t = DEREF_TOWN(index);
+		Town *t = GetTown(index);
+
 		SlObject(t, _town_desc);
 		if (index > _total_towns) _total_towns = index;
 	}
diff --git a/town_gui.c b/town_gui.c
index a263c2087..171294732 100644
--- a/town_gui.c
+++ b/town_gui.c
@@ -85,7 +85,7 @@ static void TownAuthorityWndProc(Window *w, WindowEvent *e)
 {
 	uint buttons;
 	int numact;
-	Town *t = DEREF_TOWN(w->window_number);
+	Town *t = GetTown(w->window_number);
 
 	switch(e->event) {
 	case WE_PAINT:
@@ -224,7 +224,7 @@ static void ShowTownAuthorityWindow(uint town)
 
 static void TownViewWndProc(Window *w, WindowEvent *e)
 {
-	Town *t = DEREF_TOWN(w->window_number);
+	Town *t = GetTown(w->window_number);
 
 	switch(e->event) {
 	case WE_PAINT:
@@ -338,7 +338,7 @@ void ShowTownViewWindow(uint town)
 
 	if (w) {
 		w->flags4 |= WF_DISABLE_VP_SCROLL;
-		t = DEREF_TOWN(w->window_number);
+		t = GetTown(w->window_number);
 		AssignWindowViewport(w, 3, 17, 0xFE, 0x56, t->xy, 1);
 	}
 }
@@ -357,7 +357,6 @@ static const Widget _town_directory_widgets[] = {
 
 
 // used to get a sorted list of the towns
-static uint16 _town_sort[lengthof(_towns)];
 static uint _num_town_sort;
 
 static char _bufcache[64];
@@ -370,13 +369,13 @@ static int CDECL TownNameSorter(const void *a, const void *b)
 	byte val;
 	int r;
 
-	t = DEREF_TOWN(*(const uint16*)a);
+	t = GetTown(*(const uint16*)a);
 	SetDParam(0, t->townnameparts);
 	GetString(buf1, t->townnametype);
 
 	if ( (val=*(const uint16*)b) != _last_town_idx) {
 		_last_town_idx = val;
-		t = DEREF_TOWN(val);
+		t = GetTown(val);
 		SetDParam(0, t->townnameparts);
 		GetString(_bufcache, t->townnametype);
 	}
@@ -388,8 +387,8 @@ static int CDECL TownNameSorter(const void *a, const void *b)
 
 static int CDECL TownPopSorter(const void *a, const void *b)
 {
-	const Town *ta = DEREF_TOWN(*(const uint16*)a);
-	const Town *tb = DEREF_TOWN(*(const uint16*)b);
+	const Town *ta = GetTown(*(const uint16*)a);
+	const Town *tb = GetTown(*(const uint16*)b);
 	int r = ta->population - tb->population;
 	if (_town_sort_order & 1) r = -r;
 	return r;
@@ -399,6 +398,12 @@ static void MakeSortedTownList()
 {
 	Town *t;
 	int n = 0;
+
+	/* Create array for sorting */
+	_town_sort = realloc(_town_sort, _towns_size * sizeof(_town_sort[0]));
+	if (_town_sort == NULL)
+		error("Could not allocate memory for the town-sorting-list");
+
 	FOR_ALL_TOWNS(t)
 		if(t->xy)
 			_town_sort[n++] = t->index;
@@ -434,7 +439,7 @@ static void TownDirectoryWndProc(Window *w, WindowEvent *e)
 			int y = 28;
 
 			while (i < _num_town_sort) {
-				t = DEREF_TOWN(_town_sort[i]);
+				t = GetTown(_town_sort[i]);
 
 				assert(t->xy);
 
@@ -473,7 +478,7 @@ static void TownDirectoryWndProc(Window *w, WindowEvent *e)
 			if (id_v >= _num_town_sort) { return;} // click out of town bounds
 
 			{
-				Town *t = DEREF_TOWN(_town_sort[id_v]);
+				Town *t = GetTown(_town_sort[id_v]);
 				assert(t->xy);
 
 				ScrollMainWindowToTile(t->xy);
diff --git a/train_cmd.c b/train_cmd.c
index 686ce0bbf..44813fdef 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -245,20 +245,16 @@ static int32 CmdBuildRailWagon(uint engine, uint tile, uint32 flags)
 
 		if (flags & DC_EXEC) {
 			byte img = rvi->image_index;
-			Vehicle *u;
+			Vehicle *u, *w;
 
 			v->spritenum = img;
 
-			u = _vehicles;
-			for(;;) {
-				if (u->type == VEH_Train && u->tile == (TileIndex)tile &&
-				    u->subtype == 4 && u->engine_type == engine) {
-					u = GetLastVehicleInChain(u);
-					break;
-				}
+			u = NULL;
 
-				if (++u == endof(_vehicles)) {
-					u = NULL;
+			FOR_ALL_VEHICLES(w) {
+				if (w->type == VEH_Train && w->tile == (TileIndex)tile &&
+				    w->subtype == 4 && w->engine_type == engine) {
+					u = GetLastVehicleInChain(w);
 					break;
 				}
 			}
@@ -598,7 +594,7 @@ int32 CmdMoveRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	Vehicle *src, *dst, *src_head, *dst_head;
 	bool is_loco;
 
-	src = &_vehicles[p1 & 0xffff];
+	src = GetVehicle(p1 & 0xFFFF);
 	if (src->type != VEH_Train) return CMD_ERROR;
 
 	is_loco = !(RailVehInfo(src->engine_type)->flags & RVI_WAGON)
@@ -609,7 +605,7 @@ int32 CmdMoveRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 		dst = NULL;
 		if (!is_loco) dst = FindGoodVehiclePos(src);
 	} else {
-		dst = &_vehicles[((int32)p1 >> 16)];
+		dst = GetVehicle(((int32)p1 >> 16));
 	}
 
 	// don't move the same vehicle..
@@ -746,7 +742,7 @@ int32 CmdStartStopTrain(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -772,7 +768,7 @@ int32 CmdSellRailWagon(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -1018,7 +1014,7 @@ int32 CmdReverseTrainDirection(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -1047,7 +1043,7 @@ int32 CmdForceTrainProceed(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
 	Vehicle *v;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -1073,7 +1069,7 @@ int32 CmdRefitRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 
 	SET_EXPENSES_TYPE(EXPENSES_TRAIN_RUN);
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 	if (!CheckOwnership(v->owner) || ((CheckStoppedInDepot(v) < 0) && !(SkipStoppedInDepotCheck)))
 		return CMD_ERROR;
 
@@ -1182,7 +1178,7 @@ static TrainFindDepotData FindClosestTrainDepot(Vehicle *v)
 
 int32 CmdTrainGotoDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1];
+	Vehicle *v = GetVehicle(p1);
 	TrainFindDepotData tfdd;
 
 	if (v->current_order.type == OT_GOTO_DEPOT) {
@@ -1219,7 +1215,7 @@ int32 CmdTrainGotoDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
  */
 int32 CmdChangeTrainServiceInt(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 {
-	Vehicle *v = &_vehicles[p1];
+	Vehicle *v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -1677,7 +1673,7 @@ static bool ProcessTrainOrder(Vehicle *v)
 	if (order.type == OT_GOTO_STATION) {
 		if (order.station == v->last_station_visited)
 			v->last_station_visited = 0xFFFF;
-		v->dest_tile = DEREF_STATION(order.station)->xy;
+		v->dest_tile = GetStation(order.station)->xy;
 		result = CheckReverseTrain(v);
 	} else if (order.type == OT_GOTO_DEPOT) {
 		v->dest_tile = _depots[order.station].xy;
@@ -1783,7 +1779,7 @@ static void TrainEnterStation(Vehicle *v, int station)
 	v->last_station_visited = station;
 
 	/* check if a train ever visited this station before */
-	st = DEREF_STATION(station);
+	st = GetStation(station);
 	if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
 		st->had_vehicle_of_type |= HVOT_TRAIN;
 		SetDParam(0, st->index);
@@ -2608,7 +2604,7 @@ static const byte _depot_track_ind[4] = {0,1,0,1};
 // Validation for the news item "Train is waiting in depot"
 bool ValidateTrainInDepot( uint data_a, uint data_b )
 {
-	Vehicle *v = &_vehicles[data_a];
+	Vehicle *v = GetVehicle(data_a);
 	if (v->u.rail.track == 0x80 && (v->vehstatus | VS_STOPPED))
 		return true;
 	else
@@ -2752,7 +2748,7 @@ void OnNewDay_Train(Vehicle *v)
 
 		/* update destination */
 		if (v->current_order.type == OT_GOTO_STATION &&
-				(tile = DEREF_STATION(v->current_order.station)->train_tile) != 0)
+				(tile = GetStation(v->current_order.station)->train_tile) != 0)
 					v->dest_tile = tile;
 
 		if ((v->vehstatus & VS_STOPPED) == 0) {
diff --git a/train_gui.c b/train_gui.c
index 90d69da58..9333ecf1f 100644
--- a/train_gui.c
+++ b/train_gui.c
@@ -90,7 +90,7 @@ void CcBuildLoco(bool success, uint tile, uint32 p1, uint32 p2)
 	if (!success)
 		return;
 
-	v = &_vehicles[_new_train_id];
+	v = GetVehicle(_new_train_id);
 	if (tile == _backup_orders_tile) {
 		_backup_orders_tile = 0;
 		RestoreVehicleOrders(v, _backup_orders_data);
@@ -458,7 +458,7 @@ static void TrainDepotMoveVehicle(Vehicle *wagon, int sel, Vehicle *head)
 {
 	Vehicle *v;
 
-	v = &_vehicles[sel];
+	v = GetVehicle(sel);
 
 	if (/*v->subtype == 0 ||*/ v == wagon)
 		return;
@@ -553,7 +553,7 @@ static void TrainDepotWndProc(Window *w, WindowEvent *e)
 			if (WP(w,traindepot_d).sel == INVALID_VEHICLE)
 				return;
 
-			v = &_vehicles[WP(w,traindepot_d).sel];
+			v = GetVehicle(WP(w,traindepot_d).sel);
 
 			WP(w,traindepot_d).sel = INVALID_VEHICLE;
 			SetWindowDirty(w);
@@ -658,7 +658,7 @@ static void RailVehicleRefitWndProc(Window *w, WindowEvent *e)
 {
 	switch(e->event) {
 	case WE_PAINT: {
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 		const byte *b;
 		int sel;
 		int x,y;
@@ -734,7 +734,7 @@ static void RailVehicleRefitWndProc(Window *w, WindowEvent *e)
 		} break;
 		case 4: /* refit button */
 			if (WP(w,refit_d).cargo != 0xFF) {
-				Vehicle *v = &_vehicles[w->window_number];
+				Vehicle *v = GetVehicle(w->window_number);
 				if (DoCommandP(v->tile, v->index, WP(w,refit_d).cargo, NULL, CMD_REFIT_RAIL_VEHICLE | CMD_MSG(STR_RAIL_CAN_T_REFIT_VEHICLE)))
 					DeleteWindow(w);
 			}
@@ -797,7 +797,7 @@ static void TrainViewWndProc(Window *w, WindowEvent *e)
 		Vehicle *v;
 		StringID str;
 
-		v = &_vehicles[w->window_number];
+		v = GetVehicle(w->window_number);
 
 		w->disabled_state = (v->owner == _local_player) ? 0 : 0x380;
 
@@ -864,7 +864,7 @@ static void TrainViewWndProc(Window *w, WindowEvent *e)
 
 	case WE_CLICK: {
 		int wid = e->click.widget;
-		Vehicle *v = &_vehicles[w->window_number];
+		Vehicle *v = GetVehicle(w->window_number);
 
 		switch(wid) {
 		case 5: /* start/stop train */
@@ -905,7 +905,7 @@ static void TrainViewWndProc(Window *w, WindowEvent *e)
 		Vehicle *v;
 		uint32 h;
 
-		v = &_vehicles[w->window_number];
+		v = GetVehicle(w->window_number);
 		assert(v->type == VEH_Train);
 		h = CheckStoppedInDepot(v) >= 0 ? (1 << 9) : (1 << 12);
 		if (h != w->hidden_state) {
@@ -1003,7 +1003,7 @@ static void DrawTrainDetailsWindow(Window *w)
 	if (det_tab == 3)	// reset tot_cargo array to 0 values
 		memset(tot_cargo, 0, sizeof(tot_cargo));
 
-	u = v = &_vehicles[w->window_number];
+	u = v = GetVehicle(w->window_number);
 	do {
 		if (det_tab != 3)
 			num++;
@@ -1114,7 +1114,7 @@ static void TrainDetailsWndProc(Window *w, WindowEvent *e)
 		Vehicle *v;
 		switch(e->click.widget) {
 		case 2: /* name train */
-			v = &_vehicles[w->window_number];
+			v = GetVehicle(w->window_number);
 			SetDParam(0, v->unitnumber);
 			ShowQueryString(v->string_id, STR_8865_NAME_TRAIN, 31, 150, w->window_class, w->window_number);
 			break;
@@ -1125,7 +1125,7 @@ static void TrainDetailsWndProc(Window *w, WindowEvent *e)
 		case 7: /* dec serv interval */
 			mod = _ctrl_pressed? -5 : -10;
 do_change_service_int:
-			v = &_vehicles[w->window_number];
+			v = GetVehicle(w->window_number);
 			mod += v->service_interval;
 
 				/*	%-based service interval max 5%-90%
@@ -1276,7 +1276,7 @@ static void PlayerTrainsWndProc(Window *w, WindowEvent *e)
 				w->widget[1].unkA = STR_881B_TRAINS;
 			} else {
 				/* Station Name -- (###) Trains */
-				SetDParam(0, DEREF_STATION(station)->index);
+				SetDParam(0, GetStation(station)->index);
 				SetDParam(1, w->vscroll.count);
 				w->widget[1].unkA = STR_SCHEDULED_TRAINS;
 			}
@@ -1290,7 +1290,7 @@ static void PlayerTrainsWndProc(Window *w, WindowEvent *e)
 
 		max = min(w->vscroll.pos + w->vscroll.cap, vl->list_length);
 		for (i = w->vscroll.pos; i < max; ++i) {
-			Vehicle *v = DEREF_VEHICLE(vl->sort_list[i].index);
+			Vehicle *v = GetVehicle(vl->sort_list[i].index);
 			StringID str;
 
 			assert(v->type == VEH_Train && v->owner == owner);
@@ -1344,7 +1344,7 @@ static void PlayerTrainsWndProc(Window *w, WindowEvent *e)
 
 				if (id_v >= vl->list_length) return; // click out of list bound
 
-				v	= DEREF_VEHICLE(vl->sort_list[id_v].index);
+				v = GetVehicle(vl->sort_list[id_v].index);
 
 				assert(v->type == VEH_Train && v->subtype == 0 && v->owner == owner);
 
diff --git a/ttd.c b/ttd.c
index 8d3955a90..61680c112 100644
--- a/ttd.c
+++ b/ttd.c
@@ -482,6 +482,35 @@ void ParseResolution(int res[2], char *s)
 	res[1] = strtoul(t + 1, NULL, 0);
 }
 
+static void InitializeDynamicVariables(void)
+{
+	/* Dynamic stuff needs to be initialized somewhere... */
+	_stations_size = lengthof(_stations);
+	_station_sort = NULL;
+
+	_vehicles_size = lengthof(_vehicles);
+	_vehicle_sort = NULL;
+
+	_towns_size = lengthof(_towns);
+	_town_sort = NULL;
+
+	_industries_size = lengthof(_industries);
+	_industry_sort = NULL;
+}
+
+static void UnInitializeDynamicVariables(void)
+{
+	/* Dynamic stuff needs to be free'd somewhere... */
+	free(_station_sort);
+
+	free(_vehicle_sort);
+
+	free(_town_sort);
+
+	free(_industry_sort);
+}
+
+
 void LoadIntroGame()
 {
 	char filename[256];
@@ -640,6 +669,9 @@ int ttd_main(int argc, char* argv[])
 	// initialize airport state machines
 	InitializeAirports();
 
+	/* initialize all variables that are allocated dynamically */
+	InitializeDynamicVariables();
+
 	// Sample catalogue
 	DEBUG(misc, 1) ("Loading sound effects...");
 	_os_version = GetOSVersion();
@@ -721,6 +753,9 @@ int ttd_main(int argc, char* argv[])
 	// uninitialize airport state machines
 	UnInitializeAirports();
 
+	/* uninitialize variables that are allocated dynamic */
+	UnInitializeDynamicVariables();
+
 	return 0;
 }
 
diff --git a/vehicle.c b/vehicle.c
index 253504741..1d009221c 100644
--- a/vehicle.c
+++ b/vehicle.c
@@ -15,6 +15,10 @@
 #define INVALID_COORD (-0x8000)
 #define GEN_HASH(x,y) (((x & 0x1F80)>>7) + ((y & 0xFC0)))
 
+enum {
+	VEHICLES_MIN_FREE_FOR_AI = 90
+};
+
 void VehicleServiceInDepot(Vehicle *v)
 {
 	v->date_of_last_service = _date;
@@ -106,14 +110,13 @@ Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z)
 	int x2 = GET_TILE_X(to);
 	int y2 = GET_TILE_Y(to);
 	Vehicle *veh;
-	uint count;
 
 	/* Make sure x1 < x2 or y1 < y2 */
 	if (x1 > x2 || y1 > y2) {
 		intswap(x1,x2);
 		intswap(y1,y2);
 	}
-	for(veh = _vehicles, count=lengthof(_vehicles); count != 0; count--, veh++) {
+	FOR_ALL_VEHICLES(veh) {
 		if ((veh->type == VEH_Train || veh->type == VEH_Road) && (z==0xFF || veh->z_pos == z)) {
 			if ((veh->x_pos>>4) >= x1 && (veh->x_pos>>4) <= x2 &&
 					(veh->y_pos>>4) >= y1 && (veh->y_pos>>4) <= y2) {
@@ -212,8 +215,7 @@ static Vehicle *InitializeVehicle(Vehicle *v)
 Vehicle *ForceAllocateSpecialVehicle()
 {
 	Vehicle *v;
-	for(v=_vehicles + NUM_NORMAL_VEHICLES;
-			v!=&_vehicles[NUM_NORMAL_VEHICLES+NUM_SPECIAL_VEHICLES]; v++) {
+	FOR_ALL_VEHICLES_FROM(v, NUM_NORMAL_VEHICLES) {
 		if (v->type == 0)
 			return InitializeVehicle(v);
 	}
@@ -224,7 +226,10 @@ Vehicle *ForceAllocateSpecialVehicle()
 Vehicle *ForceAllocateVehicle()
 {
 	Vehicle *v;
-	for(v=_vehicles; v!=&_vehicles[NUM_NORMAL_VEHICLES]; v++) {
+	FOR_ALL_VEHICLES(v) {
+		if (v->index >= NUM_NORMAL_VEHICLES)
+			return NULL;
+
 		if (v->type == 0)
 			return InitializeVehicle(v);
 	}
@@ -239,12 +244,15 @@ Vehicle *AllocateVehicle()
 	if (IS_HUMAN_PLAYER(_current_player)) {
 		num = 0;
 
-		for(v=_vehicles; v!=&_vehicles[NUM_NORMAL_VEHICLES]; v++) {
+		FOR_ALL_VEHICLES(v) {
+			if (v->index >= NUM_NORMAL_VEHICLES)
+				break;
+
 			if (v->type == 0)
 				num++;
 		}
 
-		if (num <= 90)
+		if (num <= VEHICLES_MIN_FREE_FOR_AI)
 			return NULL;
 	}
 
@@ -268,7 +276,7 @@ void *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
 		for(;;) {
 			veh = _vehicle_position_hash[ (x+y)&0xFFFF ];
 			while (veh != INVALID_VEHICLE) {
-				Vehicle *v = &_vehicles[veh];
+				Vehicle *v = GetVehicle(veh);
 				void *a;
 
 				if ((a = proc(v, data)) != NULL)
@@ -310,7 +318,7 @@ void UpdateVehiclePosHash(Vehicle *v, int x, int y)
 	if (old_hash != NULL) {
 		Vehicle *last = NULL;
 		int idx = *old_hash;
-		while((u = &_vehicles[idx]) != v) {
+		while ((u = GetVehicle(idx)) != v) {
 			idx = u->next_hash;
 			assert(idx != INVALID_VEHICLE);
 			last = u;
@@ -335,7 +343,7 @@ void InitializeVehicles()
 	int i;
 
 	// clear it...
-	memset(&_vehicles, 0, sizeof(_vehicles));
+	memset(&_vehicles, 0, sizeof(_vehicles[0]) * _vehicles_size);
 	memset(&_waypoints, 0, sizeof(_waypoints));
 	memset(&_depots, 0, sizeof(_depots));
 
@@ -359,24 +367,25 @@ Vehicle *GetPrevVehicleInChain(Vehicle *v)
 {
 	Vehicle *org = v;
 
-	v = _vehicles;
-	while (v->type != VEH_Train || org != v->next) {
-		if (++v == endof(_vehicles))
-			return NULL;
+	FOR_ALL_VEHICLES(v) {
+		if (v->type == VEH_Train && org == v->next)
+			return v;
 	}
 
-	return v;
+	return NULL;
 }
 
 Vehicle *GetFirstVehicleInChain(Vehicle *v)
 {
-	for(;;) {
-		Vehicle *u = v;
-		v = _vehicles;
-		while (v->type != VEH_Train || u != v->next) {
-			if (++v == endof(_vehicles))
-				return u;
-		}
+	Vehicle *u;
+
+	while (true) {
+		u = v;
+		v = GetPrevVehicleInChain(v);
+		/* If there is no such vehicle,
+		    'v' == NULL and so 'u' is the first vehicle in chain */
+		if (v == NULL)
+			return u;
 	}
 }
 
@@ -658,7 +667,7 @@ void ViewportAddVehicles(DrawPixelInfo *dpi)
 		for(;;) {
 			veh = _vehicle_position_hash[ (x+y)&0xFFFF ];
 			while (veh != INVALID_VEHICLE) {
-				v = &_vehicles[veh];
+				v = GetVehicle(veh);
 
 				if (!(v->vehstatus & VS_HIDDEN) &&
 						dpi->left <= v->right_coord &&
@@ -1410,7 +1419,7 @@ int32 CmdReplaceVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	 the last 8 bit is the engine. The 8 bits in front of the engine is free so it have room for 16 bit engine entries */
 	uint16 new_engine_type = (uint16)(p2 & 0xFFFF);
 	uint32 autorefit_money = (p2  >> 16) * 100000;
-	Vehicle *v = DEREF_VEHICLE(p1);
+	Vehicle *v = GetVehicle(p1);
 	int cost, build_cost;
 
 	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
@@ -1628,7 +1637,7 @@ int32 CmdNameVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
 	Vehicle *v;
 	StringID str;
 
-	v = &_vehicles[p1];
+	v = GetVehicle(p1);
 
 	if (!CheckOwnership(v->owner))
 		return CMD_ERROR;
@@ -2013,10 +2022,11 @@ static void Load_VEHS()
 	Vehicle *v;
 
 	while ((index = SlIterateArray()) != -1) {
-		Vehicle *v = &_vehicles[index];
+		Vehicle *v = GetVehicle(index);
+
 		v->next_in_chain_old = INVALID_VEHICLE;
 		SlObject(v, _veh_descs[SlReadByte()]);
-		v->next = v->next_in_chain_old == INVALID_VEHICLE ? NULL : &_vehicles[v->next_in_chain_old];
+		v->next = (v->next_in_chain_old == INVALID_VEHICLE) ? NULL : GetVehicle(v->next_in_chain_old);
 		if (v->type == VEH_Train)
 			v->u.rail.first_engine = 0xffff;
 
@@ -2035,6 +2045,11 @@ static void Load_VEHS()
 		for (w = v->next; w; w = w->next)
 			w->u.rail.first_engine = v->engine_type;
 	}
+
+	/* This is to ensure all pointers are within the limits of
+	    _vehicles_size */
+	if (_vehicle_id_ctr_day >= _vehicles_size)
+		_vehicle_id_ctr_day = 0;
 }
 
 static const byte _depot_desc[] = {
diff --git a/vehicle.h b/vehicle.h
index 59dbaf62e..29bf42362 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -408,9 +408,6 @@ byte GetDirectionTowards(Vehicle *v, int x, int y);
 #define BEGIN_ENUM_WAGONS(v) do {
 #define END_ENUM_WAGONS(v) } while ( (v=v->next) != NULL);
 
-#define DEREF_VEHICLE(i) (&_vehicles[i])
-#define FOR_ALL_VEHICLES(v) for(v=_vehicles; v != endof(_vehicles); v++)
-
 /* vehicle.c */
 enum {
 	NUM_NORMAL_VEHICLES = 2048,
@@ -419,6 +416,18 @@ enum {
 };
 
 VARDEF Vehicle _vehicles[NUM_VEHICLES];
+VARDEF uint _vehicles_size;
+
+VARDEF SortStruct *_vehicle_sort;
+
+static inline Vehicle *GetVehicle(uint index)
+{
+	assert(index < _vehicles_size);
+	return &_vehicles[index];
+}
+
+#define FOR_ALL_VEHICLES(v) for(v = _vehicles; v != &_vehicles[_vehicles_size]; v++)
+#define FOR_ALL_VEHICLES_FROM(v, from) for(v = GetVehicle(from); v != &_vehicles[_vehicles_size]; v++)
 
 VARDEF Order _order_array[5000];
 VARDEF Order *_ptr_to_next_order;
diff --git a/vehicle_gui.c b/vehicle_gui.c
index 0f64ed7cb..5c8cd0759 100644
--- a/vehicle_gui.c
+++ b/vehicle_gui.c
@@ -80,13 +80,17 @@ void ResortVehicleLists(void)
 
 void BuildVehicleList(vehiclelist_d *vl, int type, int owner, int station)
 {
-	SortStruct sort_list[NUM_NORMAL_VEHICLES];
 	int subtype = (type != VEH_Aircraft) ? 0 : 2;
 	int n = 0;
 	int i;
 
 	if (!(vl->flags & VL_REBUILD)) return;
 
+	/* Create array for sorting */
+	_vehicle_sort = realloc(_vehicle_sort, _vehicles_size * sizeof(_vehicle_sort[0]));
+	if (_vehicle_sort == NULL)
+		error("Could not allocate memory for the vehicle-sorting-list");
+
 	DEBUG(misc, 1) ("Building vehicle list for player %d station %d...",
 		owner, station);
 
@@ -97,8 +101,8 @@ void BuildVehicleList(vehiclelist_d *vl, int type, int owner, int station)
 				const Order *ord;
 				for (ord = v->schedule_ptr; ord->type != OT_NOTHING; ++ord)
 					if (ord->type == OT_GOTO_STATION && ord->station == station) {
-						sort_list[n].index = v - _vehicles;
-						sort_list[n].owner = v->owner;
+						_vehicle_sort[n].index = v->index;
+						_vehicle_sort[n].owner = v->owner;
 						++n;
 						break;
 					}
@@ -108,18 +112,20 @@ void BuildVehicleList(vehiclelist_d *vl, int type, int owner, int station)
 		const Vehicle *v;
 		FOR_ALL_VEHICLES(v) {
 			if (v->type == type && v->subtype <= subtype && v->owner == owner) {
-				sort_list[n].index = v - _vehicles;
-				sort_list[n].owner = v->owner;
+				_vehicle_sort[n].index = v->index;
+				_vehicle_sort[n].owner = v->owner;
 				++n;
 			}
 		}
 	}
 
-	vl->sort_list = realloc(vl->sort_list, n * sizeof(vl->sort_list[0])); /* XXX unchecked malloc */
+	vl->sort_list = realloc(vl->sort_list, n * sizeof(vl->sort_list[0]));
+	if (vl->sort_list == NULL)
+		error("Could not allocate memory for the vehicle-sorting-list");
 	vl->list_length = n;
 
 	for (i = 0; i < n; ++i)
-		vl->sort_list[i] = sort_list[i];
+		vl->sort_list[i] = _vehicle_sort[i];
 
 	vl->flags &= ~VL_REBUILD;
 	vl->flags |= VL_RESORT;
@@ -176,7 +182,7 @@ int CDECL GeneralOwnerSorter(const void *a, const void *b)
 */
 int CDECL VehicleUnsortedSorter(const void *a, const void *b)
 {
-	return DEREF_VEHICLE((*(const SortStruct*)a).index)->index - DEREF_VEHICLE((*(const SortStruct*)b).index)->index;
+	return GetVehicle((*(const SortStruct*)a).index)->index - GetVehicle((*(const SortStruct*)b).index)->index;
 }
 
 // if the sorting criteria had the same value, sort vehicle by unitnumber
@@ -184,8 +190,8 @@ int CDECL VehicleUnsortedSorter(const void *a, const void *b)
 
 int CDECL VehicleNumberSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->unitnumber - vb->unitnumber;
 
 	return (_internal_sort_order & 1) ? -r : r;
@@ -196,8 +202,8 @@ int CDECL VehicleNameSorter(const void *a, const void *b)
 {
 	const SortStruct *cmp1 = (const SortStruct*)a;
 	const SortStruct *cmp2 = (const SortStruct*)b;
-	const Vehicle *va = DEREF_VEHICLE(cmp1->index);
-	const Vehicle *vb = DEREF_VEHICLE(cmp2->index);
+	const Vehicle *va = GetVehicle(cmp1->index);
+	const Vehicle *vb = GetVehicle(cmp2->index);
 	char buf1[64] = "\0";
 	int r;
 
@@ -224,8 +230,8 @@ int CDECL VehicleNameSorter(const void *a, const void *b)
 
 int CDECL VehicleAgeSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->age - vb->age;
 
 	VEHICLEUNITNUMBERSORTER(r, va, vb);
@@ -235,8 +241,8 @@ int CDECL VehicleAgeSorter(const void *a, const void *b)
 
 int CDECL VehicleProfitThisYearSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->profit_this_year - vb->profit_this_year;
 
 	VEHICLEUNITNUMBERSORTER(r, va, vb);
@@ -246,8 +252,8 @@ int CDECL VehicleProfitThisYearSorter(const void *a, const void *b)
 
 int CDECL VehicleProfitLastYearSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->profit_last_year - vb->profit_last_year;
 
 	VEHICLEUNITNUMBERSORTER(r, va, vb);
@@ -257,8 +263,8 @@ int CDECL VehicleProfitLastYearSorter(const void *a, const void *b)
 
 int CDECL VehicleCargoSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	const Vehicle *v;
 	int r = 0;
 	int i;
@@ -286,8 +292,8 @@ int CDECL VehicleCargoSorter(const void *a, const void *b)
 
 int CDECL VehicleReliabilitySorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->reliability - vb->reliability;
 
 	VEHICLEUNITNUMBERSORTER(r, va, vb);
@@ -297,8 +303,8 @@ int CDECL VehicleReliabilitySorter(const void *a, const void *b)
 
 int CDECL VehicleMaxSpeedSorter(const void *a, const void *b)
 {
-	const Vehicle *va = DEREF_VEHICLE((*(const SortStruct*)a).index);
-	const Vehicle *vb = DEREF_VEHICLE((*(const SortStruct*)b).index);
+	const Vehicle *va = GetVehicle((*(const SortStruct*)a).index);
+	const Vehicle *vb = GetVehicle((*(const SortStruct*)b).index);
 	int r = va->max_speed - vb->max_speed;
 
 	VEHICLEUNITNUMBERSORTER(r, va, vb);
diff --git a/viewport.c b/viewport.c
index f28465230..3e86cf8d7 100644
--- a/viewport.c
+++ b/viewport.c
@@ -116,7 +116,7 @@ void AssignWindowViewport(Window *w, int x, int y,
 	if (follow_flags & 0x80000000) {
 		Vehicle *veh;
 		WP(w,vp_d).follow_vehicle = (VehicleID)(follow_flags & 0xFFFF);
-		veh = &_vehicles[WP(w,vp_d).follow_vehicle];
+		veh = GetVehicle(WP(w,vp_d).follow_vehicle);
 		pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
 	} else {
 		int x = GET_TILE_X(follow_flags) * 16;
@@ -1271,7 +1271,7 @@ void UpdateViewportPosition(Window *w)
 		Vehicle *veh;
 		Point pt;
 
-		veh = &_vehicles[WP(w,vp_d).follow_vehicle];
+		veh = GetVehicle(WP(w,vp_d).follow_vehicle);
 		pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
 		SetViewportPosition(w, pt.x, pt.y);
 	} else {
author	truelight <truelight@openttd.org>	2005-01-06 22:31:58 +0000
committer	truelight <truelight@openttd.org>	2005-01-06 22:31:58 +0000
commit	63e97754fbf907cfefd277087bfbac5e0d4434e8 (patch)
tree	254702245ba43d006f4823111d0c2c592fb701ca
parent	a4111363c0def2ccec66ef28b5e8169e8a2df2f0 (diff)
download	openttd-63e97754fbf907cfefd277087bfbac5e0d4434e8.tar.xz