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-rw-r--r--ai.c35
-rw-r--r--ai_new.c3
-rw-r--r--airport_gui.c21
-rw-r--r--dock_gui.c12
-rw-r--r--gui.h2
-rw-r--r--lang/english.txt1
-rw-r--r--macros.h10
-rw-r--r--misc_gui.c4
-rw-r--r--rail_gui.c12
-rw-r--r--road_gui.c19
-rw-r--r--settings.c2
-rw-r--r--settings_gui.c2
-rw-r--r--station.h17
-rw-r--r--station_cmd.c87
-rw-r--r--variables.h1
15 files changed, 189 insertions, 39 deletions
diff --git a/ai.c b/ai.c
index 0ae06f759..1d8d583f3 100644
--- a/ai.c
+++ b/ai.c
@@ -1530,6 +1530,7 @@ static bool AiCheckTrackResources(TileIndex tile, const AiDefaultBlockData *p, b
uint values[NUM_CARGO];
int w,h;
uint tile2;
+ int rad;
for(;p->mode != 4;p++) if (p->mode == 1) {
tile2 = TILE_ADD(tile, p->tileoffs);
@@ -1538,11 +1539,18 @@ static bool AiCheckTrackResources(TileIndex tile, const AiDefaultBlockData *p, b
h = ((p->attr>>4) & 7);
if (p->attr&1) intswap(w, h);
+
+ if (_patches.modified_catchment) {
+ rad = CA_TRAIN;
+ } else {
+ rad = 4;
+ }
+
if (cargo & 0x80) {
- GetProductionAroundTiles(values, tile2, w, h);
+ GetProductionAroundTiles(values, tile2, w, h, rad);
return values[cargo & 0x7F] != 0;
} else {
- GetAcceptanceAroundTiles(values, tile2, w, h);
+ GetAcceptanceAroundTiles(values, tile2, w, h, rad);
if (!(values[cargo] & ~7))
return false;
if (cargo != CT_MAIL)
@@ -2472,16 +2480,24 @@ static void AiStateDeleteRailBlocks(Player *p)
static bool AiCheckRoadResources(TileIndex tile, const AiDefaultBlockData *p, byte cargo)
{
uint values[NUM_CARGO];
+ int rad;
+
+ if (_patches.modified_catchment) {
+ rad = CA_TRUCK; //Same as CA_BUS at the moment?
+ } else { //change that at some point?
+ rad = 4;
+ }
+
for(;;p++) {
if (p->mode == 4) {
return true;
} else if (p->mode == 1) {
uint tile2 = TILE_ADD(tile, p->tileoffs);
if (cargo & 0x80) {
- GetProductionAroundTiles(values, tile2, 1, 1);
+ GetProductionAroundTiles(values, tile2, 1, 1, rad);
return values[cargo & 0x7F] != 0;
} else {
- GetAcceptanceAroundTiles(values, tile2, 1, 1);
+ GetAcceptanceAroundTiles(values, tile2, 1, 1, rad);
return (values[cargo]&~7) != 0;
}
}
@@ -3336,16 +3352,23 @@ static bool AiCheckAirportResources(TileIndex tile, const AiDefaultBlockData *p,
uint values[NUM_CARGO];
int w,h;
uint tile2;
+ int rad;
+
+ if (_patches.modified_catchment) {
+ rad = CA_AIR_LARGE; //I Have NFI what airport the
+ } else { //AI is going to build here
+ rad = 4;
+ }
for(;p->mode==0;p++) {
tile2 = TILE_ADD(tile, p->tileoffs);
w = _airport_size_x[p->attr];
h = _airport_size_y[p->attr];
if (cargo & 0x80) {
- GetProductionAroundTiles(values, tile2, w, h);
+ GetProductionAroundTiles(values, tile2, w, h, rad);
return values[cargo & 0x7F] != 0;
} else {
- GetAcceptanceAroundTiles(values, tile2, w, h);
+ GetAcceptanceAroundTiles(values, tile2, w, h, rad);
return values[cargo] >= 8;
}
}
diff --git a/ai_new.c b/ai_new.c
index 79c503b71..ba335196a 100644
--- a/ai_new.c
+++ b/ai_new.c
@@ -611,7 +611,8 @@ static void AiNew_State_FindStation(Player *p) {
if (IS_TILETYPE(new_tile, MP_CLEAR) || IS_TILETYPE(new_tile, MP_TREES)) {
// This tile we can build on!
// Check acceptance
- GetAcceptanceAroundTiles(accepts, new_tile, 1, 1);
+ // XXX - Get the catchment area
+ GetAcceptanceAroundTiles(accepts, new_tile, 1, 1, 4);
// >> 3 == 0 means no cargo
if (accepts[p->ainew.cargo] >> 3 == 0) continue;
// See if we can build the station
diff --git a/airport_gui.c b/airport_gui.c
index 6c14f29e9..20e68b2ed 100644
--- a/airport_gui.c
+++ b/airport_gui.c
@@ -134,6 +134,8 @@ void ShowBuildAirToolbar()
static void BuildAirportPickerWndProc(Window *w, WindowEvent *e)
{
+ int rad;
+
switch(e->event) {
case WE_PAINT: {
int sel;
@@ -155,13 +157,28 @@ static void BuildAirportPickerWndProc(Window *w, WindowEvent *e)
// select default the coverage area to 'Off' (8)
w->click_state = ((1<<3) << sel) | ((1<<8) << _station_show_coverage);
SetTileSelectSize(_airport_size_x[sel],_airport_size_y[sel]);
- if (_station_show_coverage) SetTileSelectBigSize(-4, -4, 8, 8);
+
+ if (_patches.modified_catchment) {
+ switch (sel) {
+ case AT_OILRIG: rad = CA_AIR_OILPAD; break;
+ case AT_HELIPORT: rad = CA_AIR_HELIPORT; break;
+ case AT_SMALL: rad = CA_AIR_SMALL; break;
+ case AT_LARGE: rad = CA_AIR_LARGE; break;
+ case AT_METROPOLITAN: rad = CA_AIR_METRO; break;
+ case AT_INTERNATIONAL: rad = CA_AIR_INTER; break;
+ }
+ } else {
+ rad = 4;
+ }
+
+
+ if (_station_show_coverage) SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
DrawWindowWidgets(w);
// strings such as 'Size' and 'Coverage Area'
DrawStringCentered(74, 16, STR_305B_SIZE, 0);
DrawStringCentered(74, 78, STR_3066_COVERAGE_AREA_HIGHLIGHT, 0);
- DrawStationCoverageAreaText(2, 104, (uint)-1);
+ DrawStationCoverageAreaText(2, 104, (uint)-1, rad);
break;
}
diff --git a/dock_gui.c b/dock_gui.c
index b4228922d..c9444c6e0 100644
--- a/dock_gui.c
+++ b/dock_gui.c
@@ -2,6 +2,7 @@
#include "ttd.h"
#include "table/strings.h"
#include "window.h"
+#include "station.h"
#include "gui.h"
#include "viewport.h"
#include "gfx.h"
@@ -203,12 +204,21 @@ void ShowBuildDocksToolbar()
static void BuildDockStationWndProc(Window *w, WindowEvent *e)
{
+ int rad;
+
switch(e->event) {
case WE_PAINT: {
if (WP(w,def_d).close)
return;
DrawWindowWidgets(w);
- DrawStationCoverageAreaText(2, 15, (uint)-1);
+ //Add some code for the coverage area eariler or later!!
+ if (_patches.modified_catchment) {
+ rad = CA_DOCK;
+ } else {
+ rad = 4;
+ }
+
+ DrawStationCoverageAreaText(2, 15, (uint)-1, rad);
} break;
case WE_CLICK: {
diff --git a/gui.h b/gui.h
index 0e679086c..da6f05f49 100644
--- a/gui.h
+++ b/gui.h
@@ -78,7 +78,7 @@ void ShowPlayerCompany(int player);
void ShowEstimatedCostOrIncome(int32 cost, int x, int y);
void ShowErrorMessage(StringID msg_1, StringID msg_2, int x, int y);
-void DrawStationCoverageAreaText(int sx, int sy, uint mask);
+void DrawStationCoverageAreaText(int sx, int sy, uint mask,int rad);
void CheckRedrawStationCoverage(Window *w);
void ShowSmallMap();
diff --git a/lang/english.txt b/lang/english.txt
index 269853525..06e94ce51 100644
--- a/lang/english.txt
+++ b/lang/english.txt
@@ -973,6 +973,7 @@ STR_CONFIG_PATCHES_OFF :Off
STR_CONFIG_PATCHES_ON :On
STR_CONFIG_PATCHES_VEHICLESPEED :{LTBLUE}Show vehicle speed in status bar: {ORANGE}{STRING}
STR_CONFIG_PATCHES_BUILDONSLOPES :{LTBLUE}Allow building on slopes and coasts: {ORANGE}{STRING}
+STR_CONFIG_PATCHES_CATCHMENT :{LTBLUE}Allow more realistically sized catchment areas: {ORANGE}{STRING}
STR_CONFIG_PATCHES_EXTRADYNAMITE :{LTBLUE}Allow removal of more town-owned roads, bridges, tunnels, etc: {ORANGE}{STRING}
STR_CONFIG_PATCHES_MAMMOTHTRAINS :{LTBLUE}Enable building very long trains: {ORANGE}{STRING}
STR_CONFIG_PATCHES_REALISTICACCEL :{LTBLUE}Enable realistic acceleration for trains: {ORANGE}{STRING}
diff --git a/macros.h b/macros.h
index 11d01d2b8..7517d6fed 100644
--- a/macros.h
+++ b/macros.h
@@ -173,6 +173,16 @@ static inline int FindFirstBit2x64(int value)
#define CHANCE16R(a,b,r) ((uint16)(r=Random()) <= (uint16)((65536 * a) / b))
#define CHANCE16I(a,b,v) ((uint16)(v) <= (uint16)((65536 * a) / b))
+#define FIND_CATCHMENT_RADIUS(st,rad) \
+ {\
+ if (st->bus_tile || st->lorry_tile || (st->airport_tile && st->airport_type == AT_OILRIG)) rad = 3; \
+ if (st->train_tile || (st->airport_tile && (st->airport_type == AT_HELIPORT || st->airport_type == AT_SMALL))) rad = 4; \
+ if (st->dock_tile || (st->airport_tile && st->airport_type == AT_LARGE)) rad = 5; \
+ if (st->airport_tile && st->airport_type == AT_METROPOLITAN) rad = 6; \
+ if (st->airport_tile && st->airport_type == AT_INTERNATIONAL) rad = 8; }
+
+
+
#define BEGIN_TILE_LOOP(var,w,h,tile) \
{int h_cur = h; \
uint var = tile; \
diff --git a/misc_gui.c b/misc_gui.c
index 64cebe85c..cb21f33c9 100644
--- a/misc_gui.c
+++ b/misc_gui.c
@@ -640,12 +640,12 @@ static void DrawStationCoverageText(const uint *accepts, int str_x, int str_y, u
DrawStringMultiLine(str_x, str_y, STR_SPEC_USERSTRING, 144);
}
-void DrawStationCoverageAreaText(int sx, int sy, uint mask) {
+void DrawStationCoverageAreaText(int sx, int sy, uint mask, int rad) {
int x = _thd.pos.x;
int y = _thd.pos.y;
uint accepts[NUM_CARGO];
if (x != -1) {
- GetAcceptanceAroundTiles(accepts, TILE_FROM_XY(x,y), _thd.new_size.x >> 4, _thd.new_size.y >> 4);
+ GetAcceptanceAroundTiles(accepts, TILE_FROM_XY(x,y), _thd.new_size.x >> 4, _thd.new_size.y >> 4, rad);
DrawStationCoverageText(accepts, sx, sy, mask);
}
}
diff --git a/rail_gui.c b/rail_gui.c
index 7fdde306a..28f12caac 100644
--- a/rail_gui.c
+++ b/rail_gui.c
@@ -849,6 +849,7 @@ static void HandleStationPlacement(uint start, uint end)
}
static void StationBuildWndProc(Window *w, WindowEvent *e) {
+ int rad;
switch(e->event) {
case WE_PAINT: {
uint bits;
@@ -876,8 +877,15 @@ static void StationBuildWndProc(Window *w, WindowEvent *e) {
SetTileSelectSize(x, y);
}
+ if (_patches.modified_catchment) {
+ rad = CA_TRAIN;
+ } else {
+ rad = 4;
+ }
+
+
if (_station_show_coverage)
- SetTileSelectBigSize(-4, -4, 8, 8);
+ SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
DrawWindowWidgets(w);
@@ -889,7 +897,7 @@ static void StationBuildWndProc(Window *w, WindowEvent *e) {
DrawStringCentered(74, 101, STR_3004_PLATFORM_LENGTH, 0);
DrawStringCentered(74, 141, STR_3066_COVERAGE_AREA_HIGHLIGHT, 0);
- DrawStationCoverageAreaText(2, 166, (uint)-1);
+ DrawStationCoverageAreaText(2, 166, (uint)-1, rad);
} break;
case WE_CLICK: {
diff --git a/road_gui.c b/road_gui.c
index 734535311..4368b1e40 100644
--- a/road_gui.c
+++ b/road_gui.c
@@ -7,6 +7,9 @@
#include "gfx.h"
#include "sound.h"
#include "command.h"
+//needed for catchments
+#include "station.h"
+
static void ShowBusStationPicker();
static void ShowTruckStationPicker();
@@ -400,6 +403,9 @@ static void ShowRoadDepotPicker()
}
static void RoadStationPickerWndProc(Window *w, WindowEvent *e) {
+
+ int rad;
+
switch(e->event) {
case WE_PAINT: {
int image;
@@ -409,8 +415,15 @@ static void RoadStationPickerWndProc(Window *w, WindowEvent *e) {
DrawWindowWidgets(w);
SetTileSelectSize(1, 1);
+
+ if (_patches.modified_catchment) {
+ rad = CA_TRUCK; // = CA_BUS
+ } else {
+ rad = 4;
+ }
+
if (_station_show_coverage)
- SetTileSelectBigSize(-4, -4, 8, 8);
+ SetTileSelectBigSize(-rad, -rad, 2*rad, 2*rad);
image = (w->window_class == WC_BUS_STATION) ? 0x47 : 0x43;
@@ -421,8 +434,8 @@ static void RoadStationPickerWndProc(Window *w, WindowEvent *e) {
DrawStringCentered(70, 120, STR_3066_COVERAGE_AREA_HIGHLIGHT, 0);
DrawStationCoverageAreaText(2, 146,
- ((w->window_class == WC_BUS_STATION) ? (1<<CT_PASSENGERS) : ~(1<<CT_PASSENGERS))
- );
+ ((w->window_class == WC_BUS_STATION) ? (1<<CT_PASSENGERS) : ~(1<<CT_PASSENGERS)),
+ 3);
} break;
diff --git a/settings.c b/settings.c
index f165e70a2..2212f06b9 100644
--- a/settings.c
+++ b/settings.c
@@ -795,6 +795,8 @@ const SettingDesc patch_settings[] = {
{"join_stations", SDT_BOOL, (void*)true, &_patches.join_stations, NULL},
{"station_spread", SDT_UINT8, (void*)12, &_patches.station_spread, NULL},
{"full_load_any", SDT_BOOL, (void*)true, &_patches.full_load_any, NULL},
+ {"modified_catchment", SDT_BOOL, (void*)true, &_patches.modified_catchment},
+
{"inflation", SDT_BOOL, (void*)true, &_patches.inflation, NULL},
{"selectgoods", SDT_BOOL, (void*)true, &_patches.selectgoods, NULL},
diff --git a/settings_gui.c b/settings_gui.c
index 328c20ab0..117f1eba8 100644
--- a/settings_gui.c
+++ b/settings_gui.c
@@ -640,6 +640,8 @@ static const PatchEntry _patches_stations[] = {
{PE_BOOL, 0, STR_CONFIG_PATCHES_NONUNIFORM_STATIONS, &_patches.nonuniform_stations, 0, 0, 0, NULL},
{PE_UINT8, 0, STR_CONFIG_PATCHES_STATION_SPREAD, &_patches.station_spread, 4, 64, 1, NULL},
{PE_BOOL, 0, STR_CONFIG_PATCHES_SERVICEATHELIPAD, &_patches.serviceathelipad, 0, 0, 0, NULL},
+ {PE_BOOL, 0, STR_CONFIG_PATCHES_CATCHMENT, &_patches.modified_catchment},
+
};
static const PatchEntry _patches_economy[] = {
diff --git a/station.h b/station.h
index 527148f3b..cd460d961 100644
--- a/station.h
+++ b/station.h
@@ -73,6 +73,19 @@ enum {
HVOT_BUOY = 1 << 6
};
+enum {
+ CA_BUS = 3,
+ CA_TRUCK = 3,
+ CA_AIR_OILPAD = 3,
+ CA_TRAIN = 4,
+ CA_AIR_HELIPORT = 4,
+ CA_AIR_SMALL = 4,
+ CA_AIR_LARGE = 5,
+ CA_DOCK = 5,
+ CA_AIR_METRO = 6,
+ CA_AIR_INTER = 8,
+};
+
void ModifyStationRatingAround(TileIndex tile, byte owner, int amount, uint radius);
TileIndex GetStationTileForVehicle(Vehicle *v, Station *st);
@@ -88,8 +101,8 @@ VARDEF bool _global_station_sort_dirty;
#define FOR_ALL_STATIONS(st) for(st=_stations; st != endof(_stations); st++)
-void GetProductionAroundTiles(uint *produced, uint tile, int w, int h);
-void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h);
+void GetProductionAroundTiles(uint *produced, uint tile, int w, int h, int rad);
+void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h, int rad);
uint GetStationPlatforms(Station *st, uint tile);
diff --git a/station_cmd.c b/station_cmd.c
index 57fa3c4ea..6c8bc987d 100644
--- a/station_cmd.c
+++ b/station_cmd.c
@@ -376,7 +376,7 @@ static void ShowRejectOrAcceptNews(Station *st, uint32 items, StringID msg)
}
// Get a list of the cargo types being produced around the tile.
-void GetProductionAroundTiles(uint *produced, uint tile, int w, int h)
+void GetProductionAroundTiles(uint *produced, uint tile, int w, int h, int rad)
{
int x,y;
int x1,y1,x2,y2;
@@ -390,11 +390,11 @@ void GetProductionAroundTiles(uint *produced, uint tile, int w, int h)
// expand the region by 4 tiles on each side
// while making sure that we remain inside the board.
- x2 = min(x + w+4, TILE_X_MAX+1);
- x1 = max(x-4, 0);
+ x2 = min(x + w + rad, TILE_X_MAX+1);
+ x1 = max(x-rad, 0);
- y2 = min(y + h+4, TILE_Y_MAX+1);
- y1 = max(y-4, 0);
+ y2 = min(y + h + rad, TILE_Y_MAX+1);
+ y1 = max(y-rad, 0);
assert(x1 < x2);
assert(y1 < y2);
@@ -425,7 +425,7 @@ void GetProductionAroundTiles(uint *produced, uint tile, int w, int h)
}
// Get a list of the cargo types that are accepted around the tile.
-void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h)
+void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h, int rad)
{
int x,y;
int x1,y1,x2,y2;
@@ -438,10 +438,10 @@ void GetAcceptanceAroundTiles(uint *accepts, uint tile, int w, int h)
// expand the region by 4 tiles on each side
// while making sure that we remain inside the board.
- x2 = min(x + w + 4, TILE_X_MAX+1);
- y2 = min(y + h + 4, TILE_Y_MAX+1);
- x1 = max(x-4, 0);
- y1 = max(y-4, 0);
+ x2 = min(x + w + rad, TILE_X_MAX+1);
+ y2 = min(y + h + rad, TILE_Y_MAX+1);
+ x1 = max(x-rad, 0);
+ y1 = max(y-rad, 0);
assert(x1 < x2);
assert(y1 < y2);
@@ -473,6 +473,7 @@ static void UpdateStationAcceptance(Station *st, bool show_msg)
TileIndex span[1+1+2+2+1];
int i;
int min_x, min_y, max_x, max_y;
+ int rad = 4; //Put this to surpress a compiler warning
uint accepts[NUM_CARGO];
// Don't update acceptance for a buoy
@@ -509,10 +510,15 @@ static void UpdateStationAcceptance(Station *st, bool show_msg)
max_y = max(max_y,GET_TILE_Y(tile));
}
}
+ if (_patches.modified_catchment) {
+ FIND_CATCHMENT_RADIUS(st,rad)
+ } else {
+ rad = 4;
+ }
// And retrieve the acceptance.
if (max_x != 0) {
- GetAcceptanceAroundTiles(accepts, TILE_XY(min_x, min_y), max_x - min_x + 1, max_y-min_y+1);
+ GetAcceptanceAroundTiles(accepts, TILE_XY(min_x, min_y), max_x - min_x + 1, max_y-min_y+1,rad);
} else {
memset(accepts, 0, sizeof(accepts));
}
@@ -2451,13 +2457,29 @@ uint MoveGoodsToStation(uint tile, int w, int h, int type, uint amount)
uint best_rating, best_rating2;
Station *st1, *st2;
int t;
+ int rad=0;
+ int w_prod=0, h_prod=0; //width and height of the "producer" of the cargo
+ int x_min_prod, x_max_prod; //min and max coordinates of the producer
+ int y_min_prod, y_max_prod; //relative
+ int x_dist, y_dist;
+ int max_rad;
+
memset(around, 0xff, sizeof(around));
- w += 8;
- h += 8;
+ if (_patches.modified_catchment) {
+ w_prod = w;
+ h_prod = h;
+ w += 16;
+ h += 16;
+ max_rad = 8;
+ } else {
+ w += 8;
+ h += 8;
+ max_rad = 4;
+ }
- BEGIN_TILE_LOOP(cur_tile, w, h, tile - TILE_XY(4,4))
+ BEGIN_TILE_LOOP(cur_tile, w, h, tile - TILE_XY(max_rad,max_rad))
cur_tile = TILE_MASK(cur_tile);
if (IS_TILETYPE(cur_tile, MP_STATION)) {
st_index = _map2[cur_tile];
@@ -2470,16 +2492,43 @@ uint MoveGoodsToStation(uint tile, int w, int h, int type, uint amount)
(!_patches.selectgoods || st->goods[type].last_speed) && // if last_speed is 0, no vehicle has been there.
((st->facilities & (byte)~FACIL_BUS_STOP)!=0 || type==CT_PASSENGERS) && // if we have other fac. than a bus stop, or the cargo is passengers
((st->facilities & (byte)~FACIL_TRUCK_STOP)!=0 || type!=CT_PASSENGERS)) { // if we have other fac. than a cargo bay or the cargo is not passengers
-
- around[i] = st_index;
- around_ptr[i] = st;
- }
+ if (_patches.modified_catchment) {
+ FIND_CATCHMENT_RADIUS(st,rad)
+ x_min_prod = y_min_prod = 9;
+ x_max_prod = 8 + w_prod;
+ y_max_prod = 8 + h_prod;
+
+ x_dist = min(w_cur - x_min_prod, x_max_prod - w_cur);
+
+ if (w_cur < x_min_prod) {
+ x_dist = x_min_prod - w_cur;
+ } else { //save cycles
+ if (w_cur > x_max_prod) x_dist = w_cur - x_max_prod;
+ }
+
+ y_dist = min(h_cur - y_min_prod, y_max_prod - h_cur);
+ if (h_cur < y_min_prod) {
+ y_dist = y_min_prod - h_cur;
+ } else {
+ if (h_cur > y_max_prod) y_dist = h_cur - y_max_prod;
+ }
+
+ } else {
+ x_dist = y_dist = 0;
+ }
+
+ if ( !(x_dist > rad) && !(y_dist > rad) ) {
+
+ around[i] = st_index;
+ around_ptr[i] = st;
+ }
+ }
break;
} else if (around[i] == st_index)
break;
}
}
- END_TILE_LOOP(cur_tile, w, h, tile - TILE_XY(4,4))
+ END_TILE_LOOP(cur_tile, w, h, tile - TILE_XY(max_rad, max_rad))
/* no stations around at all? */
if (around[0] == 0xFF)
diff --git a/variables.h b/variables.h
index 61cba06e7..ab84a427c 100644
--- a/variables.h
+++ b/variables.h
@@ -82,6 +82,7 @@ VARDEF byte _saved_scrollpos_zoom;
// ********* END OF SAVE REGION
typedef struct Patches {
+ bool modified_catchment; //different-size catchment areas
bool vehicle_speed; // show vehicle speed
bool build_on_slopes; // allow building on slopes
bool mammoth_trains; // allow very long trains