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-rw-r--r--src/disaster_cmd.cpp1001
1 files changed, 1001 insertions, 0 deletions
diff --git a/src/disaster_cmd.cpp b/src/disaster_cmd.cpp
new file mode 100644
index 000000000..2d4579b52
--- /dev/null
+++ b/src/disaster_cmd.cpp
@@ -0,0 +1,1001 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "functions.h"
+#include "industry_map.h"
+#include "station_map.h"
+#include "table/strings.h"
+#include "map.h"
+#include "tile.h"
+#include "vehicle.h"
+#include "command.h"
+#include "news.h"
+#include "station.h"
+#include "waypoint.h"
+#include "town.h"
+#include "industry.h"
+#include "player.h"
+#include "airport.h"
+#include "sound.h"
+#include "variables.h"
+#include "table/sprites.h"
+#include "date.h"
+
+static void DisasterClearSquare(TileIndex tile)
+{
+ if (!EnsureNoVehicle(tile)) return;
+
+ switch (GetTileType(tile)) {
+ case MP_RAILWAY:
+ if (IsHumanPlayer(GetTileOwner(tile)) && !IsRailWaypoint(tile)) {
+ PlayerID p = _current_player;
+ _current_player = OWNER_WATER;
+ DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
+ _current_player = p;
+ }
+ break;
+
+ case MP_HOUSE: {
+ PlayerID p = _current_player;
+ _current_player = OWNER_NONE;
+ DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
+ _current_player = p;
+ break;
+ }
+
+ case MP_TREES:
+ case MP_CLEAR:
+ DoClearSquare(tile);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static const SpriteID _disaster_images_1[] = {0xF41, 0xF41, 0xF41, 0xF41, 0xF41, 0xF41, 0xF41, 0xF41};
+static const SpriteID _disaster_images_2[] = {0xF44, 0xF44, 0xF44, 0xF44, 0xF44, 0xF44, 0xF44, 0xF44};
+static const SpriteID _disaster_images_3[] = {0xF4E, 0xF4E, 0xF4E, 0xF4E, 0xF4E, 0xF4E, 0xF4E, 0xF4E};
+static const SpriteID _disaster_images_4[] = {0xF46, 0xF46, 0xF47, 0xF47, 0xF48, 0xF48, 0xF49, 0xF49};
+static const SpriteID _disaster_images_5[] = {0xF4A, 0xF4A, 0xF4B, 0xF4B, 0xF4C, 0xF4C, 0xF4D, 0xF4D};
+static const SpriteID _disaster_images_6[] = {0xF50, 0xF50, 0xF50, 0xF50, 0xF50, 0xF50, 0xF50, 0xF50};
+static const SpriteID _disaster_images_7[] = {0xF51, 0xF51, 0xF51, 0xF51, 0xF51, 0xF51, 0xF51, 0xF51};
+static const SpriteID _disaster_images_8[] = {0xF52, 0xF52, 0xF52, 0xF52, 0xF52, 0xF52, 0xF52, 0xF52};
+static const SpriteID _disaster_images_9[] = {0xF3E, 0xF3E, 0xF3E, 0xF3E, 0xF3E, 0xF3E, 0xF3E, 0xF3E};
+
+static const SpriteID * const _disaster_images[] = {
+ _disaster_images_1, _disaster_images_1,
+ _disaster_images_2, _disaster_images_2,
+ _disaster_images_3, _disaster_images_3,
+ _disaster_images_8, _disaster_images_8, _disaster_images_9,
+ _disaster_images_6, _disaster_images_6,
+ _disaster_images_7, _disaster_images_7,
+ _disaster_images_4, _disaster_images_5,
+};
+
+static void DisasterVehicleUpdateImage(Vehicle *v)
+{
+ int img = v->u.disaster.image_override;
+ if (img == 0)
+ img = _disaster_images[v->subtype][v->direction];
+ v->cur_image = img;
+}
+
+static void InitializeDisasterVehicle(Vehicle* v, int x, int y, byte z, Direction direction, byte subtype)
+{
+ v->type = VEH_Disaster;
+ v->x_pos = x;
+ v->y_pos = y;
+ v->z_pos = z;
+ v->tile = TileVirtXY(x, y);
+ v->direction = direction;
+ v->subtype = subtype;
+ v->x_offs = -1;
+ v->y_offs = -1;
+ v->sprite_width = 2;
+ v->sprite_height = 2;
+ v->z_height = 5;
+ v->owner = OWNER_NONE;
+ v->vehstatus = VS_UNCLICKABLE;
+ v->u.disaster.image_override = 0;
+ v->current_order.type = OT_NOTHING;
+ v->current_order.flags = 0;
+ v->current_order.dest = 0;
+
+ DisasterVehicleUpdateImage(v);
+ VehiclePositionChanged(v);
+ BeginVehicleMove(v);
+ EndVehicleMove(v);
+}
+
+static void DeleteDisasterVeh(Vehicle *v)
+{
+ DeleteVehicleChain(v);
+}
+
+static void SetDisasterVehiclePos(Vehicle *v, int x, int y, byte z)
+{
+ Vehicle *u;
+
+ BeginVehicleMove(v);
+ v->x_pos = x;
+ v->y_pos = y;
+ v->z_pos = z;
+ v->tile = TileVirtXY(x, y);
+
+ DisasterVehicleUpdateImage(v);
+ VehiclePositionChanged(v);
+ EndVehicleMove(v);
+
+ if ( (u=v->next) != NULL) {
+ int safe_x = clamp(x, 0, MapMaxX() * TILE_SIZE);
+ int safe_y = clamp(y - 1, 0, MapMaxY() * TILE_SIZE);
+ BeginVehicleMove(u);
+
+ u->x_pos = x;
+ u->y_pos = y - 1 - (max(z - GetSlopeZ(safe_x, safe_y), 0) >> 3);
+ safe_y = clamp(u->y_pos, 0, MapMaxY() * TILE_SIZE);
+ u->z_pos = GetSlopeZ(safe_x, safe_y);
+ u->direction = v->direction;
+
+ DisasterVehicleUpdateImage(u);
+ VehiclePositionChanged(u);
+ EndVehicleMove(u);
+
+ if ( (u=u->next) != NULL) {
+ BeginVehicleMove(u);
+ u->x_pos = x;
+ u->y_pos = y;
+ u->z_pos = z + 5;
+ VehiclePositionChanged(u);
+ EndVehicleMove(u);
+ }
+ }
+}
+
+
+static void DisasterTick_Zeppeliner(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+ Station *st;
+ int x,y;
+ byte z;
+ TileIndex tile;
+
+ ++v->tick_counter;
+
+ if (v->current_order.dest < 2) {
+ if (v->tick_counter&1)
+ return;
+
+ GetNewVehiclePos(v, &gp);
+
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+
+ if (v->current_order.dest == 1) {
+ if (++v->age == 38) {
+ v->current_order.dest = 2;
+ v->age = 0;
+ }
+
+ if ((v->tick_counter&7)==0) {
+ CreateEffectVehicleRel(v, 0, -17, 2, EV_SMOKE);
+ }
+ } else if (v->current_order.dest == 0) {
+ tile = v->tile; /**/
+
+ if (IsValidTile(tile) &&
+ IsTileType(tile, MP_STATION) &&
+ IsAirport(tile) &&
+ IsHumanPlayer(GetTileOwner(tile))) {
+ v->current_order.dest = 1;
+ v->age = 0;
+
+ SetDParam(0, GetStationIndex(tile));
+ AddNewsItem(STR_B000_ZEPPELIN_DISASTER_AT,
+ NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ACCIDENT, 0),
+ v->index,
+ 0);
+ }
+ }
+ if (v->y_pos >= ((int)MapSizeY() + 9) * TILE_SIZE - 1)
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ if (v->current_order.dest > 2) {
+ if (++v->age <= 13320)
+ return;
+
+ tile = v->tile; /**/
+
+ if (IsValidTile(tile) &&
+ IsTileType(tile, MP_STATION) &&
+ IsAirport(tile) &&
+ IsHumanPlayer(GetTileOwner(tile))) {
+ st = GetStationByTile(tile);
+ CLRBITS(st->airport_flags, RUNWAY_IN_block);
+ }
+
+ SetDisasterVehiclePos(v, v->x_pos, v->y_pos, v->z_pos);
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ x = v->x_pos;
+ y = v->y_pos;
+ z = GetSlopeZ(x,y);
+ if (z < v->z_pos)
+ z = v->z_pos - 1;
+ SetDisasterVehiclePos(v, x, y, z);
+
+ if (++v->age == 1) {
+ CreateEffectVehicleRel(v, 0, 7, 8, EV_EXPLOSION_LARGE);
+ SndPlayVehicleFx(SND_12_EXPLOSION, v);
+ v->u.disaster.image_override = SPR_BLIMP_CRASHING;
+ } else if (v->age == 70) {
+ v->u.disaster.image_override = SPR_BLIMP_CRASHED;
+ } else if (v->age <= 300) {
+ if (!(v->tick_counter&7)) {
+ uint32 r = Random();
+
+ CreateEffectVehicleRel(v,
+ GB(r, 0, 4) - 7,
+ GB(r, 4, 4) - 7,
+ GB(r, 8, 3) + 5,
+ EV_EXPLOSION_SMALL);
+ }
+ } else if (v->age == 350) {
+ v->current_order.dest = 3;
+ v->age = 0;
+ }
+
+ tile = v->tile;/**/
+ if (IsValidTile(tile) &&
+ IsTileType(tile, MP_STATION) &&
+ IsAirport(tile) &&
+ IsHumanPlayer(GetTileOwner(tile))) {
+ st = GetStationByTile(tile);
+ SETBITS(st->airport_flags, RUNWAY_IN_block);
+ }
+}
+
+// UFO starts in the middle, and flies around a bit until it locates
+// a road vehicle which it targets.
+static void DisasterTick_UFO(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+ Vehicle *u;
+ uint dist;
+ byte z;
+
+ v->u.disaster.image_override = (++v->tick_counter & 8) ? SPR_UFO_SMALL_SCOUT_DARKER : SPR_UFO_SMALL_SCOUT;
+
+ if (v->current_order.dest == 0) {
+// fly around randomly
+ int x = TileX(v->dest_tile) * TILE_SIZE;
+ int y = TileY(v->dest_tile) * TILE_SIZE;
+ if (abs(x - v->x_pos) + abs(y - v->y_pos) >= TILE_SIZE) {
+ v->direction = GetDirectionTowards(v, x, y);
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+ return;
+ }
+ if (++v->age < 6) {
+ v->dest_tile = RandomTile();
+ return;
+ }
+ v->current_order.dest = 1;
+
+ FOR_ALL_VEHICLES(u) {
+ if (u->type == VEH_Road && IsHumanPlayer(u->owner)) {
+ v->dest_tile = u->index;
+ v->age = 0;
+ return;
+ }
+ }
+
+ DeleteDisasterVeh(v);
+ } else {
+// target a vehicle
+ u = GetVehicle(v->dest_tile);
+ if (u->type != VEH_Road) {
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ dist = abs(v->x_pos - u->x_pos) + abs(v->y_pos - u->y_pos);
+
+ if (dist < TILE_SIZE && !(u->vehstatus&VS_HIDDEN) && u->breakdown_ctr==0) {
+ u->breakdown_ctr = 3;
+ u->breakdown_delay = 140;
+ }
+
+ v->direction = GetDirectionTowards(v, u->x_pos, u->y_pos);
+ GetNewVehiclePos(v, &gp);
+
+ z = v->z_pos;
+ if (dist <= TILE_SIZE && z > u->z_pos) z--;
+ SetDisasterVehiclePos(v, gp.x, gp.y, z);
+
+ if (z <= u->z_pos && (u->vehstatus&VS_HIDDEN)==0) {
+ v->age++;
+ if (u->u.road.crashed_ctr == 0) {
+ u->u.road.crashed_ctr++;
+ u->vehstatus |= VS_CRASHED;
+
+ AddNewsItem(STR_B001_ROAD_VEHICLE_DESTROYED,
+ NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ACCIDENT, 0),
+ u->index,
+ 0);
+ }
+ }
+
+// destroy?
+ if (v->age > 50) {
+ CreateEffectVehicleRel(v, 0, 7, 8, EV_EXPLOSION_LARGE);
+ SndPlayVehicleFx(SND_12_EXPLOSION, v);
+ DeleteDisasterVeh(v);
+ }
+ }
+}
+
+static void DestructIndustry(Industry *i)
+{
+ TileIndex tile;
+
+ for (tile = 0; tile != MapSize(); tile++) {
+ if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == i->index) {
+ ResetIndustryConstructionStage(tile);
+ MarkTileDirtyByTile(tile);
+ }
+ }
+}
+
+// Airplane which destroys an oil refinery
+static void DisasterTick_2(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+
+ v->tick_counter++;
+ v->u.disaster.image_override =
+ (v->current_order.dest == 1 && v->tick_counter & 4) ? SPR_F_15_FIRING : 0;
+
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+
+ if (gp.x < -160) {
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ if (v->current_order.dest == 2) {
+ if (!(v->tick_counter&3)) {
+ Industry *i = GetIndustry(v->dest_tile);
+ int x = TileX(i->xy) * TILE_SIZE;
+ int y = TileY(i->xy) * TILE_SIZE;
+ uint32 r = Random();
+
+ CreateEffectVehicleAbove(
+ GB(r, 0, 6) + x,
+ GB(r, 6, 6) + y,
+ GB(r, 12, 4),
+ EV_EXPLOSION_SMALL);
+
+ if (++v->age >= 55)
+ v->current_order.dest = 3;
+ }
+ } else if (v->current_order.dest == 1) {
+ if (++v->age == 112) {
+ Industry *i;
+
+ v->current_order.dest = 2;
+ v->age = 0;
+
+ i = GetIndustry(v->dest_tile);
+ DestructIndustry(i);
+
+ SetDParam(0, i->town->index);
+ AddNewsItem(STR_B002_OIL_REFINERY_EXPLOSION, NEWS_FLAGS(NM_THIN,NF_VIEWPORT|NF_TILE,NT_ACCIDENT,0), i->xy, 0);
+ SndPlayTileFx(SND_12_EXPLOSION, i->xy);
+ }
+ } else if (v->current_order.dest == 0) {
+ int x,y;
+ TileIndex tile;
+ uint ind;
+
+ x = v->x_pos - 15 * TILE_SIZE;
+ y = v->y_pos;
+
+ if ( (uint)x > MapMaxX() * TILE_SIZE - 1)
+ return;
+
+ tile = TileVirtXY(x, y);
+ if (!IsTileType(tile, MP_INDUSTRY))
+ return;
+
+ ind = GetIndustryIndex(tile);
+ v->dest_tile = ind;
+
+ if (GetIndustry(ind)->type == IT_OIL_REFINERY) {
+ v->current_order.dest = 1;
+ v->age = 0;
+ }
+ }
+}
+
+// Helicopter which destroys a factory
+static void DisasterTick_3(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+
+ v->tick_counter++;
+ v->u.disaster.image_override =
+ (v->current_order.dest == 1 && v->tick_counter & 4) ? SPR_AH_64A_FIRING : 0;
+
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+
+ if (gp.x > (int)MapSizeX() * TILE_SIZE + 9 * TILE_SIZE - 1) {
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ if (v->current_order.dest == 2) {
+ if (!(v->tick_counter&3)) {
+ Industry *i = GetIndustry(v->dest_tile);
+ int x = TileX(i->xy) * TILE_SIZE;
+ int y = TileY(i->xy) * TILE_SIZE;
+ uint32 r = Random();
+
+ CreateEffectVehicleAbove(
+ GB(r, 0, 6) + x,
+ GB(r, 6, 6) + y,
+ GB(r, 12, 4),
+ EV_EXPLOSION_SMALL);
+
+ if (++v->age >= 55)
+ v->current_order.dest = 3;
+ }
+ } else if (v->current_order.dest == 1) {
+ if (++v->age == 112) {
+ Industry *i;
+
+ v->current_order.dest = 2;
+ v->age = 0;
+
+ i = GetIndustry(v->dest_tile);
+ DestructIndustry(i);
+
+ SetDParam(0, i->town->index);
+ AddNewsItem(STR_B003_FACTORY_DESTROYED_IN_SUSPICIOUS, NEWS_FLAGS(NM_THIN,NF_VIEWPORT|NF_TILE,NT_ACCIDENT,0), i->xy, 0);
+ SndPlayTileFx(SND_12_EXPLOSION, i->xy);
+ }
+ } else if (v->current_order.dest == 0) {
+ int x,y;
+ TileIndex tile;
+ uint ind;
+
+ x = v->x_pos - 15 * TILE_SIZE;
+ y = v->y_pos;
+
+ if ( (uint)x > MapMaxX() * TILE_SIZE - 1)
+ return;
+
+ tile = TileVirtXY(x, y);
+ if (!IsTileType(tile, MP_INDUSTRY))
+ return;
+
+ ind = GetIndustryIndex(tile);
+ v->dest_tile = ind;
+
+ if (GetIndustry(ind)->type == IT_FACTORY) {
+ v->current_order.dest = 1;
+ v->age = 0;
+ }
+ }
+}
+
+// Helicopter rotor blades
+static void DisasterTick_3b(Vehicle *v)
+{
+ if (++v->tick_counter & 1)
+ return;
+
+ if (++v->cur_image > SPR_ROTOR_MOVING_3) v->cur_image = SPR_ROTOR_MOVING_1;
+
+ VehiclePositionChanged(v);
+ BeginVehicleMove(v);
+ EndVehicleMove(v);
+}
+
+// Big UFO which lands on a piece of rail.
+// Will be shot down by a plane
+static void DisasterTick_4(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+ byte z;
+ Vehicle *u,*w;
+ Town *t;
+ TileIndex tile;
+ TileIndex tile_org;
+
+ v->tick_counter++;
+
+ if (v->current_order.dest == 1) {
+ int x = TileX(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
+ int y = TileY(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
+ if (abs(v->x_pos - x) + abs(v->y_pos - y) >= 8) {
+ v->direction = GetDirectionTowards(v, x, y);
+
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+ return;
+ }
+
+ z = GetSlopeZ(v->x_pos, v->y_pos);
+ if (z < v->z_pos) {
+ SetDisasterVehiclePos(v, v->x_pos, v->y_pos, v->z_pos - 1);
+ return;
+ }
+
+ v->current_order.dest = 2;
+
+ FOR_ALL_VEHICLES(u) {
+ if (u->type == VEH_Train || u->type == VEH_Road) {
+ if (abs(u->x_pos - v->x_pos) + abs(u->y_pos - v->y_pos) <= 12 * TILE_SIZE) {
+ u->breakdown_ctr = 5;
+ u->breakdown_delay = 0xF0;
+ }
+ }
+ }
+
+ t = ClosestTownFromTile(v->dest_tile, (uint)-1);
+ SetDParam(0, t->index);
+ AddNewsItem(STR_B004_UFO_LANDS_NEAR,
+ NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_TILE, NT_ACCIDENT, 0),
+ v->tile,
+ 0);
+
+ u = ForceAllocateSpecialVehicle();
+ if (u == NULL) {
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ InitializeDisasterVehicle(u, -6 * TILE_SIZE, v->y_pos, 135, DIR_SW, 11);
+ u->u.disaster.unk2 = v->index;
+
+ w = ForceAllocateSpecialVehicle();
+ if (w == NULL)
+ return;
+
+ u->next = w;
+ InitializeDisasterVehicle(w, -6 * TILE_SIZE, v->y_pos, 0, DIR_SW, 12);
+ w->vehstatus |= VS_SHADOW;
+ } else if (v->current_order.dest < 1) {
+
+ int x = TileX(v->dest_tile) * TILE_SIZE;
+ int y = TileY(v->dest_tile) * TILE_SIZE;
+ if (abs(x - v->x_pos) + abs(y - v->y_pos) >= TILE_SIZE) {
+ v->direction = GetDirectionTowards(v, x, y);
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+ return;
+ }
+
+ if (++v->age < 6) {
+ v->dest_tile = RandomTile();
+ return;
+ }
+ v->current_order.dest = 1;
+
+ tile_org = tile = RandomTile();
+ do {
+ if (IsTileType(tile, MP_RAILWAY) &&
+ IsPlainRailTile(tile) &&
+ IsHumanPlayer(GetTileOwner(tile))) {
+ break;
+ }
+ tile = TILE_MASK(tile+1);
+ } while (tile != tile_org);
+ v->dest_tile = tile;
+ v->age = 0;
+ } else {
+ return;
+ }
+}
+
+// The plane which will shoot down the UFO
+static void DisasterTick_4b(Vehicle *v)
+{
+ GetNewVehiclePosResult gp;
+ Vehicle *u;
+ int i;
+
+ v->tick_counter++;
+
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+
+ if (gp.x > (int)MapSizeX() * TILE_SIZE + 9 * TILE_SIZE - 1) {
+ DeleteDisasterVeh(v);
+ return;
+ }
+
+ if (v->current_order.dest == 0) {
+ u = GetVehicle(v->u.disaster.unk2);
+ if (abs(v->x_pos - u->x_pos) > TILE_SIZE)
+ return;
+ v->current_order.dest = 1;
+
+ CreateEffectVehicleRel(u, 0, 7, 8, EV_EXPLOSION_LARGE);
+ SndPlayVehicleFx(SND_12_EXPLOSION, u);
+
+ DeleteDisasterVeh(u);
+
+ for (i = 0; i != 80; i++) {
+ uint32 r = Random();
+ CreateEffectVehicleAbove(
+ GB(r, 0, 6) + v->x_pos - 32,
+ GB(r, 5, 6) + v->y_pos - 32,
+ 0,
+ EV_EXPLOSION_SMALL);
+ }
+
+ BEGIN_TILE_LOOP(tile, 6, 6, v->tile - TileDiffXY(3, 3))
+ tile = TILE_MASK(tile);
+ DisasterClearSquare(tile);
+ END_TILE_LOOP(tile, 6, 6, v->tile - TileDiffXY(3, 3))
+ }
+}
+
+// Submarine handler
+static void DisasterTick_5_and_6(Vehicle *v)
+{
+ uint32 r;
+ GetNewVehiclePosResult gp;
+ TileIndex tile;
+
+ v->tick_counter++;
+
+ if (++v->age > 8880) {
+ VehiclePositionChanged(v);
+ BeginVehicleMove(v);
+ EndVehicleMove(v);
+ DeleteVehicle(v);
+ return;
+ }
+
+ if (!(v->tick_counter & 1)) return;
+
+ tile = v->tile + TileOffsByDiagDir(DirToDiagDir(v->direction));
+ if (IsValidTile(tile) &&
+ (r=GetTileTrackStatus(tile,TRANSPORT_WATER),(byte)(r+(r >> 8)) == 0x3F) &&
+ !CHANCE16(1,90)) {
+ GetNewVehiclePos(v, &gp);
+ SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
+ return;
+ }
+
+ v->direction = ChangeDir(v->direction, GB(Random(), 0, 1) ? DIRDIFF_90RIGHT : DIRDIFF_90LEFT);
+}
+
+
+static void DisasterTick_NULL(Vehicle *v) {}
+typedef void DisasterVehicleTickProc(Vehicle *v);
+
+static DisasterVehicleTickProc * const _disastervehicle_tick_procs[] = {
+ DisasterTick_Zeppeliner,DisasterTick_NULL,
+ DisasterTick_UFO,DisasterTick_NULL,
+ DisasterTick_2,DisasterTick_NULL,
+ DisasterTick_3,DisasterTick_NULL,DisasterTick_3b,
+ DisasterTick_4,DisasterTick_NULL,
+ DisasterTick_4b,DisasterTick_NULL,
+ DisasterTick_5_and_6,
+ DisasterTick_5_and_6,
+};
+
+
+void DisasterVehicle_Tick(Vehicle *v)
+{
+ _disastervehicle_tick_procs[v->subtype](v);
+}
+
+
+void OnNewDay_DisasterVehicle(Vehicle *v)
+{
+ // not used
+}
+
+typedef void DisasterInitProc(void);
+
+// Zeppeliner which crashes on a small airport
+static void Disaster0_Init(void)
+{
+ Vehicle *v = ForceAllocateSpecialVehicle(), *u;
+ Station *st;
+ int x;
+
+ if (v == NULL) return;
+
+ /* Pick a random place, unless we find a small airport */
+ x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
+
+ FOR_ALL_STATIONS(st) {
+ if (st->airport_tile != 0 &&
+ st->airport_type <= 1 &&
+ IsHumanPlayer(st->owner)) {
+ x = (TileX(st->xy) + 2) * TILE_SIZE;
+ break;
+ }
+ }
+
+ InitializeDisasterVehicle(v, x, 0, 135, DIR_SE, 0);
+
+ // Allocate shadow too?
+ u = ForceAllocateSpecialVehicle();
+ if (u != NULL) {
+ v->next = u;
+ InitializeDisasterVehicle(u, x, 0, 0, DIR_SE, 1);
+ u->vehstatus |= VS_SHADOW;
+ }
+}
+
+static void Disaster1_Init(void)
+{
+ Vehicle *v = ForceAllocateSpecialVehicle(), *u;
+ int x;
+
+ if (v == NULL) return;
+
+ x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
+
+ InitializeDisasterVehicle(v, x, 0, 135, DIR_SE, 2);
+ v->dest_tile = TileXY(MapSizeX() / 2, MapSizeY() / 2);
+ v->age = 0;
+
+ // Allocate shadow too?
+ u = ForceAllocateSpecialVehicle();
+ if (u != NULL) {
+ v->next = u;
+ InitializeDisasterVehicle(u, x, 0, 0, DIR_SE, 3);
+ u->vehstatus |= VS_SHADOW;
+ }
+}
+
+static void Disaster2_Init(void)
+{
+ Industry *i, *found;
+ Vehicle *v,*u;
+ int x,y;
+
+ found = NULL;
+
+ FOR_ALL_INDUSTRIES(i) {
+ if (i->type == IT_OIL_REFINERY &&
+ (found == NULL || CHANCE16(1, 2))) {
+ found = i;
+ }
+ }
+
+ if (found == NULL) return;
+
+ v = ForceAllocateSpecialVehicle();
+ if (v == NULL) return;
+
+ x = (MapSizeX() + 9) * TILE_SIZE - 1;
+ y = TileY(found->xy) * TILE_SIZE + 37;
+
+ InitializeDisasterVehicle(v, x, y, 135, DIR_NE, 4);
+
+ u = ForceAllocateSpecialVehicle();
+ if (u != NULL) {
+ v->next = u;
+ InitializeDisasterVehicle(u, x, y, 0, DIR_SE, 5);
+ u->vehstatus |= VS_SHADOW;
+ }
+}
+
+static void Disaster3_Init(void)
+{
+ Industry *i, *found;
+ Vehicle *v,*u,*w;
+ int x,y;
+
+ found = NULL;
+
+ FOR_ALL_INDUSTRIES(i) {
+ if (i->type == IT_FACTORY &&
+ (found==NULL || CHANCE16(1,2))) {
+ found = i;
+ }
+ }
+
+ if (found == NULL) return;
+
+ v = ForceAllocateSpecialVehicle();
+ if (v == NULL) return;
+
+ x = -16 * TILE_SIZE;
+ y = TileY(found->xy) * TILE_SIZE + 37;
+
+ InitializeDisasterVehicle(v, x, y, 135, DIR_SW, 6);
+
+ u = ForceAllocateSpecialVehicle();
+ if (u != NULL) {
+ v->next = u;
+ InitializeDisasterVehicle(u, x, y, 0, DIR_SW, 7);
+ u->vehstatus |= VS_SHADOW;
+
+ w = ForceAllocateSpecialVehicle();
+ if (w != NULL) {
+ u->next = w;
+ InitializeDisasterVehicle(w, x, y, 140, DIR_SW, 8);
+ }
+ }
+}
+
+static void Disaster4_Init(void)
+{
+ Vehicle *v = ForceAllocateSpecialVehicle(), *u;
+ int x,y;
+
+ if (v == NULL) return;
+
+ x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
+
+ y = MapMaxX() * TILE_SIZE - 1;
+ InitializeDisasterVehicle(v, x, y, 135, DIR_NW, 9);
+ v->dest_tile = TileXY(MapSizeX() / 2, MapSizeY() / 2);
+ v->age = 0;
+
+ // Allocate shadow too?
+ u = ForceAllocateSpecialVehicle();
+ if (u != NULL) {
+ v->next = u;
+ InitializeDisasterVehicle(u, x, y, 0, DIR_NW, 10);
+ u->vehstatus |= VS_SHADOW;
+ }
+}
+
+// Submarine type 1
+static void Disaster5_Init(void)
+{
+ Vehicle *v = ForceAllocateSpecialVehicle();
+ int x,y;
+ Direction dir;
+ uint32 r;
+
+ if (v == NULL) return;
+
+ r = Random();
+ x = TileX(r) * TILE_SIZE + TILE_SIZE / 2;
+
+ if (r & 0x80000000) {
+ y = MapMaxX() * TILE_SIZE - TILE_SIZE / 2 - 1;
+ dir = DIR_NW;
+ } else {
+ y = TILE_SIZE / 2;
+ dir = DIR_SE;
+ }
+ InitializeDisasterVehicle(v, x, y, 0, dir, 13);
+ v->age = 0;
+}
+
+// Submarine type 2
+static void Disaster6_Init(void)
+{
+ Vehicle *v = ForceAllocateSpecialVehicle();
+ int x,y;
+ Direction dir;
+ uint32 r;
+
+ if (v == NULL) return;
+
+ r = Random();
+ x = TileX(r) * TILE_SIZE + TILE_SIZE / 2;
+
+ if (r & 0x80000000) {
+ y = MapMaxX() * TILE_SIZE - TILE_SIZE / 2 - 1;
+ dir = DIR_NW;
+ } else {
+ y = TILE_SIZE / 2;
+ dir = DIR_SE;
+ }
+ InitializeDisasterVehicle(v, x, y, 0, dir, 14);
+ v->age = 0;
+}
+
+static void Disaster7_Init(void)
+{
+ int index = GB(Random(), 0, 4);
+ uint m;
+
+ for (m = 0; m < 15; m++) {
+ const Industry* i;
+
+ FOR_ALL_INDUSTRIES(i) {
+ if (i->type == IT_COAL_MINE && --index < 0) {
+ SetDParam(0, i->town->index);
+ AddNewsItem(STR_B005_COAL_MINE_SUBSIDENCE_LEAVES,
+ NEWS_FLAGS(NM_THIN,NF_VIEWPORT|NF_TILE,NT_ACCIDENT,0), i->xy + TileDiffXY(1, 1), 0);
+
+ {
+ TileIndex tile = i->xy;
+ TileIndexDiff step = TileOffsByDiagDir(GB(Random(), 0, 2));
+ uint n;
+
+ for (n = 0; n < 30; n++) {
+ DisasterClearSquare(tile);
+ tile = TILE_MASK(tile + step);
+ }
+ }
+ return;
+ }
+ }
+ }
+}
+
+static DisasterInitProc * const _disaster_initprocs[] = {
+ Disaster0_Init,
+ Disaster1_Init,
+ Disaster2_Init,
+ Disaster3_Init,
+ Disaster4_Init,
+ Disaster5_Init,
+ Disaster6_Init,
+ Disaster7_Init,
+};
+
+static const struct {
+ Year min;
+ Year max;
+} _dis_years[] = {
+ { 1930, 1955 },
+ { 1940, 1970 },
+ { 1960, 1990 },
+ { 1970, 2000 },
+ { 2000, 2100 },
+ { 1940, 1965 },
+ { 1975, 2010 },
+ { 1950, 1985 }
+};
+
+
+static void DoDisaster(void)
+{
+ byte buf[lengthof(_dis_years)];
+ uint i;
+ uint j;
+
+ j = 0;
+ for (i = 0; i != lengthof(_dis_years); i++) {
+ if (_cur_year >= _dis_years[i].min && _cur_year < _dis_years[i].max) buf[j++] = i;
+ }
+
+ if (j == 0) return;
+
+ _disaster_initprocs[buf[RandomRange(j)]]();
+}
+
+
+static void ResetDisasterDelay(void)
+{
+ _disaster_delay = GB(Random(), 0, 9) + 730;
+}
+
+void DisasterDailyLoop(void)
+{
+ if (--_disaster_delay != 0) return;
+
+ ResetDisasterDelay();
+
+ if (_opt.diff.disasters != 0) DoDisaster();
+}
+
+void StartupDisasters(void)
+{
+ ResetDisasterDelay();
+}
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-07-02 03:50:07 +0000