tron@2186: /* $Id$ */
tron@2186: 
rubidium@10455: /** @file water_cmd.cpp Handling of water tiles. */
glx@9574: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@3189: #include "bridge_map.h"
rubidium@6486: #include "bridge.h"
tron@6460: #include "cmd_helper.h"
tron@3338: #include "station_map.h"
rubidium@9723: #include "tile_cmd.h"
rubidium@9599: #include "landscape.h"
rubidium@9723: #include "viewport_func.h"
rubidium@9723: #include "command_func.h"
truelight@0: #include "town.h"
rubidium@9826: #include "news_func.h"
rubidium@10249: #include "depot_base.h"
rubidium@10249: #include "depot_func.h"
matthijs@1752: #include "vehicle_gui.h"
bjarni@2676: #include "train.h"
glx@9627: #include "roadveh.h"
rubidium@9723: #include "water.h"
tron@3111: #include "water_map.h"
rubidium@9701: #include "industry_map.h"
peter1138@5210: #include "newgrf.h"
rubidium@9620: #include "newgrf_canal.h"
rubidium@9722: #include "transparency.h"
rubidium@9723: #include "strings_func.h"
rubidium@9723: #include "functions.h"
rubidium@9723: #include "window_func.h"
rubidium@9723: #include "vehicle_func.h"
rubidium@9723: #include "sound_func.h"
rubidium@9723: #include "variables.h"
rubidium@9724: #include "player_func.h"
rubidium@9724: #include "settings_type.h"
rubidium@9724: #include "clear_map.h"
rubidium@9724: #include "tree_map.h"
rubidium@9837: #include "station_base.h"
rubidium@9837: #include "airport.h"
rubidium@9837: #include "newgrf_cargo.h"
glx@10294: #include "effectvehicle_func.h"
rubidium@10355: #include "oldpool_func.h"
glx@10920: #include "tunnelbridge_map.h"
ludde@2261: 
rubidium@9724: #include "table/sprites.h"
rubidium@9724: #include "table/strings.h"
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Describes the behaviour of a tile during flooding.
rubidium@9724:  */
rubidium@9724: enum FloodingBehaviour {
rubidium@9724: 	FLOOD_NONE,    ///< The tile does not flood neighboured tiles.
rubidium@9724: 	FLOOD_ACTIVE,  ///< The tile floods neighboured tiles.
rubidium@9724: 	FLOOD_PASSIVE, ///< The tile does not actively flood neighboured tiles, but it prevents them from drying up.
rubidium@9724: 	FLOOD_DRYUP,   ///< The tile drys up if it is not constantly flooded from neighboured tiles.
rubidium@9724: };
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Describes from which directions a specific slope can be flooded (if the tile is floodable at all).
rubidium@9724:  */
rubidium@9724: static const uint8 _flood_from_dirs[] = {
rubidium@9724: 	(1 << DIR_NW) | (1 << DIR_SW) | (1 << DIR_SE) | (1 << DIR_NE), // SLOPE_FLAT
rubidium@9724: 	(1 << DIR_NE) | (1 << DIR_SE),                                 // SLOPE_W
rubidium@9724: 	(1 << DIR_NW) | (1 << DIR_NE),                                 // SLOPE_S
rubidium@9724: 	(1 << DIR_NE),                                                 // SLOPE_SW
rubidium@9724: 	(1 << DIR_NW) | (1 << DIR_SW),                                 // SLOPE_E
rubidium@9724: 	0,                                                             // SLOPE_EW
rubidium@9724: 	(1 << DIR_NW),                                                 // SLOPE_SE
rubidium@9724: 	(1 << DIR_N ) | (1 << DIR_NW) | (1 << DIR_NE),                 // SLOPE_WSE, SLOPE_STEEP_S
rubidium@9724: 	(1 << DIR_SW) | (1 << DIR_SE),                                 // SLOPE_N
rubidium@9724: 	(1 << DIR_SE),                                                 // SLOPE_NW
rubidium@9724: 	0,                                                             // SLOPE_NS
rubidium@9724: 	(1 << DIR_E ) | (1 << DIR_NE) | (1 << DIR_SE),                 // SLOPE_NWS, SLOPE_STEEP_W
rubidium@9724: 	(1 << DIR_SW),                                                 // SLOPE_NE
rubidium@9724: 	(1 << DIR_S ) | (1 << DIR_SW) | (1 << DIR_SE),                 // SLOPE_ENW, SLOPE_STEEP_N
rubidium@9724: 	(1 << DIR_W ) | (1 << DIR_SW) | (1 << DIR_NW),                 // SLOPE_SEN, SLOPE_STEEP_E
rubidium@9724: };
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Marks tile dirty if it is a canal or river tile.
rubidium@9724:  * Called to avoid glitches when flooding tiles next to canal tile.
rubidium@9724:  *
rubidium@9724:  * @param tile tile to check
rubidium@9724:  */
rubidium@9724: static inline void MarkTileDirtyIfCanalOrRiver(TileIndex tile)
rubidium@9724: {
rubidium@9724: 	if (IsTileType(tile, MP_WATER) && (IsCanal(tile) || IsRiver(tile))) MarkTileDirtyByTile(tile);
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Marks the tiles around a tile as dirty, if they are canals or rivers.
rubidium@9724:  *
rubidium@9724:  * @param tile The center of the tile where all other tiles are marked as dirty
rubidium@9724:  * @ingroup dirty
rubidium@9724:  */
rubidium@9724: static void MarkCanalsAndRiversAroundDirty(TileIndex tile)
rubidium@9724: {
rubidium@9724: 	for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
rubidium@9724: 		MarkTileDirtyIfCanalOrRiver(tile + TileOffsByDir(dir));
rubidium@9724: 	}
rubidium@9724: }
truelight@0: 
rubidium@9723: /**
rubidium@9723:  * Makes a tile canal or water depending on the surroundings.
glx@9732:  *
glx@9732:  * Must only be used for converting old savegames. Use WaterClass now.
glx@9732:  *
rubidium@9723:  * This as for example docks and shipdepots do not store
rubidium@9723:  * whether the tile used to be canal or 'normal' water.
rubidium@9723:  * @param t the tile to change.
rubidium@9723:  * @param o the owner of the new tile.
rubidium@9723:  */
rubidium@9724: void SetWaterClassDependingOnSurroundings(TileIndex t)
rubidium@9723: {
rubidium@9723: 	assert(GetTileSlope(t, NULL) == SLOPE_FLAT);
rubidium@9723: 
rubidium@9723: 	/* Mark tile dirty in all cases */
rubidium@9723: 	MarkTileDirtyByTile(t);
rubidium@9723: 
glx@9732: 	if (TileX(t) == 0 || TileY(t) == 0 || TileX(t) == MapMaxX() - 1 || TileY(t) == MapMaxY() - 1) {
glx@9732: 		/* tiles at map borders are always WATER_CLASS_SEA */
glx@9732: 		SetWaterClass(t, WATER_CLASS_SEA);
glx@9732: 		return;
glx@9732: 	}
glx@9732: 
rubidium@9723: 	bool has_water = false;
rubidium@9723: 	bool has_canal = false;
rubidium@9724: 	bool has_river = false;
rubidium@9723: 
rubidium@9723: 	for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
rubidium@9723: 		TileIndex neighbour = TileAddByDiagDir(t, dir);
rubidium@9724: 		switch (GetTileType(neighbour)) {
rubidium@9724: 			case MP_WATER:
glx@9732: 				/* clear water and shipdepots have already a WaterClass associated */
glx@9732: 				if (IsCoast(neighbour)) {
glx@9732: 					has_water = true;
glx@9732: 				} else if (!IsLock(neighbour)) {
glx@9732: 					switch (GetWaterClass(neighbour)) {
glx@9732: 						case WATER_CLASS_SEA:   has_water = true; break;
glx@9732: 						case WATER_CLASS_CANAL: has_canal = true; break;
glx@9732: 						case WATER_CLASS_RIVER: has_river = true; break;
glx@9732: 						default: NOT_REACHED();
glx@9732: 					}
glx@9732: 				}
rubidium@9724: 				break;
rubidium@9724: 
rubidium@9724: 			case MP_RAILWAY:
rubidium@9724: 				/* Shore or flooded halftile */
rubidium@9724: 				has_water |= (GetRailGroundType(neighbour) == RAIL_GROUND_WATER);
rubidium@9724: 				break;
rubidium@9724: 
rubidium@9724: 			case MP_TREES:
rubidium@9724: 				/* trees on shore */
rubidium@9724: 				has_water |= (GetTreeGround(neighbour) == TREE_GROUND_SHORE);
rubidium@9724: 				break;
rubidium@9724: 
rubidium@9724: 			default: break;
rubidium@9723: 		}
rubidium@9723: 	}
rubidium@9724: 
rubidium@9724: 	if (has_river && !has_canal) {
rubidium@9724: 		SetWaterClass(t, WATER_CLASS_RIVER);
rubidium@9724: 	} else if (has_canal || !has_water) {
rubidium@9724: 		SetWaterClass(t, WATER_CLASS_CANAL);
rubidium@9723: 	} else {
rubidium@9724: 		SetWaterClass(t, WATER_CLASS_SEA);
rubidium@9723: 	}
rubidium@9723: }
rubidium@9723: 
rubidium@9723: 
Darkvater@1784: /** Build a ship depot.
tron@3491:  * @param tile tile where ship depot is built
glx@9574:  * @param flags type of operation
tron@6460:  * @param p1 bit 0 depot orientation (Axis)
Darkvater@1784:  * @param p2 unused
truelight@0:  */
glx@9629: CommandCost CmdBuildShipDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3491: 	TileIndex tile2;
truelight@193: 
rubidium@9723: 	CommandCost ret;
truelight@0: 
tron@6460: 	Axis axis = Extract<Axis, 0>(p1);
tron@6460: 
tron@6460: 	tile2 = tile + (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
truelight@0: 
rubidium@9724: 	if (!IsWaterTile(tile) || !IsWaterTile(tile2)) {
truelight@0: 		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);
rubidium@9724: 	}
truelight@0: 
celestar@5573: 	if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5573: 
rubidium@9724: 	if (GetTileSlope(tile, NULL) != SLOPE_FLAT || GetTileSlope(tile2, NULL) != SLOPE_FLAT) {
rubidium@9724: 		/* Prevent depots on rapids */
rubidium@9724: 		return_cmd_error(STR_0239_SITE_UNSUITABLE);
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	WaterClass wc1 = GetWaterClass(tile);
rubidium@9724: 	WaterClass wc2 = GetWaterClass(tile2);
tron@3491: 	ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
Darkvater@1784: 	if (CmdFailed(ret)) return CMD_ERROR;
tron@3491: 	ret = DoCommand(tile2, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
Darkvater@1784: 	if (CmdFailed(ret)) return CMD_ERROR;
truelight@193: 
rubidium@10355: 	if (!Depot::CanAllocateItem()) return CMD_ERROR;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
rubidium@10355: 		Depot *depot = new Depot(tile);
truelight@1313: 		depot->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
truelight@0: 
glx@9732: 		MakeShipDepot(tile,  _current_player, DEPOT_NORTH, axis, wc1);
glx@9732: 		MakeShipDepot(tile2, _current_player, DEPOT_SOUTH, axis, wc2);
celestar@3372: 		MarkTileDirtyByTile(tile);
celestar@3372: 		MarkTileDirtyByTile(tile2);
truelight@0: 	}
truelight@0: 
rubidium@9723: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.build_ship_depot);
rubidium@9723: }
rubidium@9723: 
rubidium@9724: void MakeWaterKeepingClass(TileIndex tile, Owner o)
rubidium@9723: {
rubidium@9724: 	assert(IsTileType(tile, MP_WATER) || (IsTileType(tile, MP_STATION) && (IsBuoy(tile) || IsDock(tile))));
rubidium@9724: 
rubidium@9724: 	switch (GetWaterClass(tile)) {
rubidium@9724: 		case WATER_CLASS_SEA:   MakeWater(tile);              break;
rubidium@9724: 		case WATER_CLASS_CANAL: MakeCanal(tile, o, Random()); break;
rubidium@9724: 		case WATER_CLASS_RIVER: MakeRiver(tile, Random());    break;
rubidium@9723: 	}
truelight@0: }
truelight@0: 
glx@9629: static CommandCost RemoveShipDepot(TileIndex tile, uint32 flags)
truelight@0: {
celestar@3373: 	if (!IsShipDepot(tile)) return CMD_ERROR;
tron@2951: 	if (!CheckTileOwnership(tile)) return CMD_ERROR;
truelight@0: 
glx@9732: 	TileIndex tile2 = GetOtherShipDepotTile(tile);
truelight@0: 
glx@9732: 	/* do not check for ship on tile when company goes bankrupt */
glx@9732: 	if (!(flags & DC_BANKRUPT)) {
glx@9732: 		if (!EnsureNoVehicleOnGround(tile) || !EnsureNoVehicleOnGround(tile2)) return CMD_ERROR;
glx@9732: 	}
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
celestar@3373: 		/* Kill the depot, which is registered at the northernmost tile. Use that one */
rubidium@9694: 		delete GetDepotByTile(tile2 < tile ? tile2 : tile);
truelight@0: 
glx@9732: 		MakeWaterKeepingClass(tile,  GetTileOwner(tile));
glx@9732: 		MakeWaterKeepingClass(tile2, GetTileOwner(tile2));
tron@3111: 		MarkTileDirtyByTile(tile);
tron@3111: 		MarkTileDirtyByTile(tile2);
truelight@0: 	}
truelight@0: 
rubidium@9723: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_ship_depot);
truelight@0: }
truelight@0: 
glx@9574: /** build a shiplift */
glx@9629: static CommandCost DoBuildShiplift(TileIndex tile, DiagDirection dir, uint32 flags)
truelight@0: {
glx@9629: 	CommandCost ret;
truelight@0: 	int delta;
truelight@0: 
glx@9574: 	/* middle tile */
tron@3491: 	ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
peter1138@2737: 	if (CmdFailed(ret)) return CMD_ERROR;
truelight@193: 
Darkvater@4559: 	delta = TileOffsByDiagDir(dir);
glx@9574: 	/* lower tile */
rubidium@9724: 	WaterClass wc_lower = IsWaterTile(tile - delta) ? GetWaterClass(tile - delta) : WATER_CLASS_CANAL;
rubidium@9724: 
tron@3491: 	ret = DoCommand(tile - delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
peter1138@2737: 	if (CmdFailed(ret)) return CMD_ERROR;
tron@3636: 	if (GetTileSlope(tile - delta, NULL) != SLOPE_FLAT) {
tron@3636: 		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3636: 	}
truelight@0: 
glx@9574: 	/* upper tile */
rubidium@9724: 	WaterClass wc_upper = IsWaterTile(tile + delta) ? GetWaterClass(tile + delta) : WATER_CLASS_CANAL;
rubidium@9724: 
tron@3491: 	ret = DoCommand(tile + delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
peter1138@2737: 	if (CmdFailed(ret)) return CMD_ERROR;
tron@3636: 	if (GetTileSlope(tile + delta, NULL) != SLOPE_FLAT) {
tron@3636: 		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3636: 	}
truelight@0: 
celestar@5573: 	if ((MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) ||
celestar@5573: 	    (MayHaveBridgeAbove(tile - delta) && IsBridgeAbove(tile - delta)) ||
celestar@5573: 	    (MayHaveBridgeAbove(tile + delta) && IsBridgeAbove(tile + delta))) {
celestar@5573: 		return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5573: 	}
celestar@5573: 
truelight@0: 	if (flags & DC_EXEC) {
rubidium@9724: 		MakeLock(tile, _current_player, dir, wc_lower, wc_upper);
celestar@3372: 		MarkTileDirtyByTile(tile);
celestar@3372: 		MarkTileDirtyByTile(tile - delta);
celestar@3372: 		MarkTileDirtyByTile(tile + delta);
rubidium@9724: 		MarkCanalsAndRiversAroundDirty(tile - delta);
rubidium@9724: 		MarkCanalsAndRiversAroundDirty(tile + delta);
truelight@0: 	}
truelight@0: 
rubidium@9723: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water * 22 >> 3);
truelight@0: }
truelight@0: 
glx@9629: static CommandCost RemoveShiplift(TileIndex tile, uint32 flags)
truelight@0: {
Darkvater@4559: 	TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));
truelight@0: 
rubidium@9686: 	if (!CheckTileOwnership(tile) && GetTileOwner(tile) != OWNER_NONE) return CMD_ERROR;
peter1138@3940: 
glx@9574: 	/* make sure no vehicle is on the tile. */
truelight@9718: 	if (!EnsureNoVehicleOnGround(tile) || !EnsureNoVehicleOnGround(tile + delta) || !EnsureNoVehicleOnGround(tile - delta))
truelight@0: 		return CMD_ERROR;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
truelight@0: 		DoClearSquare(tile);
rubidium@9724: 		MakeWaterKeepingClass(tile + delta, GetTileOwner(tile));
rubidium@9724: 		MakeWaterKeepingClass(tile - delta, GetTileOwner(tile));
rubidium@9724: 		MarkTileDirtyByTile(tile - delta);
rubidium@9724: 		MarkTileDirtyByTile(tile + delta);
rubidium@9724: 		MarkCanalsAndRiversAroundDirty(tile - delta);
rubidium@9724: 		MarkCanalsAndRiversAroundDirty(tile + delta);
truelight@0: 	}
truelight@193: 
rubidium@9723: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water * 2);
truelight@0: }
truelight@0: 
Darkvater@1796: /** Builds a lock (ship-lift)
tron@3491:  * @param tile tile where to place the lock
glx@9574:  * @param flags type of operation
Darkvater@1796:  * @param p1 unused
Darkvater@1796:  * @param p2 unused
Darkvater@1796:  */
glx@9629: CommandCost CmdBuildLock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
rubidium@9724: 	DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile, NULL));
rubidium@9724: 	if (dir == INVALID_DIAGDIR) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
darkvater@889: 
rubidium@9724: 	/* Disallow building of locks on river rapids */
rubidium@9724: 	if (IsWaterTile(tile)) return_cmd_error(STR_0239_SITE_UNSUITABLE);
rubidium@9724: 
tron@3157: 	return DoBuildShiplift(tile, dir, flags);
truelight@0: }
truelight@0: 
Darkvater@1796: /** Build a piece of canal.
tron@3491:  * @param tile end tile of stretch-dragging
glx@9574:  * @param flags type of operation
Darkvater@1796:  * @param p1 start tile of stretch-dragging
rubidium@9724:  * @param p2 specifies canal (0), water (1) or river (2); last two can only be built in scenario editor
Darkvater@1796:  */
glx@9629: CommandCost CmdBuildCanal(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
rubidium@9723: 	CommandCost cost(EXPENSES_CONSTRUCTION);
Darkvater@1632: 	int size_x, size_y;
tron@3491: 	int x;
tron@3491: 	int y;
Darkvater@1796: 	int sx, sy;
Darkvater@1796: 
tron@2934: 	if (p1 >= MapSize()) return CMD_ERROR;
rubidium@9724: 
rubidium@6612: 	/* Outside of the editor you can only build canals, not oceans */
rubidium@9724: 	if (p2 != 0 && _game_mode != GM_EDITOR) return CMD_ERROR;
Darkvater@1796: 
tron@3491: 	x = TileX(tile);
tron@3491: 	y = TileY(tile);
Darkvater@1796: 	sx = TileX(p1);
Darkvater@1796: 	sy = TileY(p1);
Darkvater@1632: 
tron@6432: 	if (x < sx) Swap(x, sx);
tron@6432: 	if (y < sy) Swap(y, sy);
Darkvater@1632: 	size_x = (x - sx) + 1;
Darkvater@1632: 	size_y = (y - sy) + 1;
truelight@193: 
Darkvater@1796: 	/* Outside the editor you can only drag canals, and not areas */
Darkvater@1796: 	if (_game_mode != GM_EDITOR && (sx != x && sy != y)) return CMD_ERROR;
Darkvater@1796: 
tron@1981: 	BEGIN_TILE_LOOP(tile, size_x, size_y, TileXY(sx, sy)) {
glx@9629: 		CommandCost ret;
celestar@5573: 
rubidium@9724: 		Slope slope = GetTileSlope(tile, NULL);
rubidium@9724: 		if (slope != SLOPE_FLAT && (p2 != 2 || !IsInclinedSlope(slope))) {
tron@3636: 			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
tron@3636: 		}
truelight@0: 
glx@9574: 		/* can't make water of water! */
rubidium@9724: 		if (IsTileType(tile, MP_WATER) && (!IsTileOwner(tile, OWNER_WATER) || p2 == 1)) continue;
Darkvater@1632: 
celestar@5573: 		ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
celestar@5573: 		if (CmdFailed(ret)) return ret;
glx@9629: 		cost.AddCost(ret);
tron@3183: 
tron@3189: 		if (flags & DC_EXEC) {
rubidium@9724: 			if (TileHeight(tile) == 0 && p2 == 1) {
celestar@5573: 				MakeWater(tile);
rubidium@9724: 			} else if (p2 == 2) {
rubidium@9724: 				MakeRiver(tile, Random());
celestar@5573: 			} else {
rubidium@9724: 				MakeCanal(tile, _current_player, Random());
celestar@5573: 			}
tron@3189: 			MarkTileDirtyByTile(tile);
rubidium@9724: 			MarkCanalsAndRiversAroundDirty(tile);
tron@3189: 		}
tron@3183: 
glx@9629: 		cost.AddCost(_price.clear_water);
Darkvater@1632: 	} END_TILE_LOOP(tile, size_x, size_y, 0);
truelight@0: 
glx@9629: 	if (cost.GetCost() == 0) {
tron@3183: 		return_cmd_error(STR_1007_ALREADY_BUILT);
tron@3183: 	} else {
tron@3183: 		return cost;
tron@3183: 	}
truelight@0: }
truelight@0: 
glx@9629: static CommandCost ClearTile_Water(TileIndex tile, byte flags)
tron@1977: {
celestar@3425: 	switch (GetWaterTileType(tile)) {
rubidium@6507: 		case WATER_TILE_CLEAR:
celestar@3425: 			if (flags & DC_NO_WATER) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
truelight@0: 
glx@9574: 			/* Make sure it's not an edge tile. */
rubidium@9723: 			if (!IsInsideMM(TileX(tile), 1, MapMaxX() - 1) ||
rubidium@9723: 					!IsInsideMM(TileY(tile), 1, MapMaxY() - 1)) {
celestar@3425: 				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);
celestar@3425: 			}
tron@3017: 
rubidium@9701: 			/* Make sure no vehicle is on the tile */
truelight@9718: 			if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
rubidium@9701: 
rubidium@9686: 			if (GetTileOwner(tile) != OWNER_WATER && GetTileOwner(tile) != OWNER_NONE && !CheckTileOwnership(tile)) return CMD_ERROR;
peter1138@3940: 
rubidium@9724: 			if (flags & DC_EXEC) {
rubidium@9724: 				DoClearSquare(tile);
rubidium@9724: 				MarkCanalsAndRiversAroundDirty(tile);
rubidium@9724: 			}
rubidium@9723: 			return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water);
truelight@0: 
rubidium@6507: 		case WATER_TILE_COAST: {
tron@3636: 			Slope slope = GetTileSlope(tile, NULL);
tron@3439: 
glx@9574: 			/* Make sure no vehicle is on the tile */
truelight@9718: 			if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
tron@3439: 
rubidium@9724: 			if (flags & DC_EXEC) {
rubidium@9724: 				DoClearSquare(tile);
rubidium@9724: 				MarkCanalsAndRiversAroundDirty(tile);
rubidium@9724: 			}
rubidium@9724: 			if (IsSlopeWithOneCornerRaised(slope)) {
rubidium@9723: 				return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water);
tron@3439: 			} else {
rubidium@9723: 				return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_roughland);
celestar@3425: 			}
tron@3439: 		}
tron@3439: 
rubidium@6507: 		case WATER_TILE_LOCK: {
tron@3439: 			static const TileIndexDiffC _shiplift_tomiddle_offs[] = {
tron@3439: 				{ 0,  0}, {0,  0}, { 0, 0}, {0,  0}, // middle
tron@3439: 				{-1,  0}, {0,  1}, { 1, 0}, {0, -1}, // lower
tron@3439: 				{ 1,  0}, {0, -1}, {-1, 0}, {0,  1}, // upper
tron@3439: 			};
tron@3439: 
tron@3439: 			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
tron@3439: 			if (_current_player == OWNER_WATER) return CMD_ERROR;
glx@9574: 			/* move to the middle tile.. */
tron@3439: 			return RemoveShiplift(tile + ToTileIndexDiff(_shiplift_tomiddle_offs[GetSection(tile)]), flags);
tron@3439: 		}
tron@3439: 
rubidium@6507: 		case WATER_TILE_DEPOT:
celestar@3425: 			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
celestar@3425: 			return RemoveShipDepot(tile, flags);
tron@3439: 
tron@3439: 		default:
tron@3439: 			NOT_REACHED();
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@9724: /**
rubidium@9724:  * return true if a tile is a water tile wrt. a certain direction.
rubidium@9724:  *
rubidium@9724:  * @param tile The tile of interest.
rubidium@9724:  * @param from The direction of interest.
rubidium@9724:  * @return true iff the tile is water in the view of 'from'.
rubidium@9724:  *
rubidium@9724:  */
rubidium@9724: static bool IsWateredTile(TileIndex tile, Direction from)
truelight@0: {
tron@1214: 	switch (GetTileType(tile)) {
tron@3977: 		case MP_WATER:
glx@10955: 			switch (GetWaterTileType(tile)) {
glx@10955: 				default: NOT_REACHED();
glx@10955: 				case WATER_TILE_DEPOT: case WATER_TILE_CLEAR: return true;
glx@10955: 				case WATER_TILE_LOCK: return DiagDirToAxis(GetLockDirection(tile)) == DiagDirToAxis(DirToDiagDir(from));
glx@10955: 
glx@10955: 				case WATER_TILE_COAST:
glx@10955: 					switch (GetTileSlope(tile, NULL)) {
glx@10955: 						case SLOPE_W: return (from == DIR_SE) || (from == DIR_E) || (from == DIR_NE);
glx@10955: 						case SLOPE_S: return (from == DIR_NE) || (from == DIR_N) || (from == DIR_NW);
glx@10955: 						case SLOPE_E: return (from == DIR_NW) || (from == DIR_W) || (from == DIR_SW);
glx@10955: 						case SLOPE_N: return (from == DIR_SW) || (from == DIR_S) || (from == DIR_SE);
glx@10955: 						default: return false;
glx@10955: 					}
peter1138@4087: 			}
tron@3977: 
rubidium@9724: 		case MP_RAILWAY:
rubidium@9724: 			if (GetRailGroundType(tile) == RAIL_GROUND_WATER) {
rubidium@9724: 				assert(IsPlainRailTile(tile));
rubidium@9724: 				switch (GetTileSlope(tile, NULL)) {
rubidium@9724: 					case SLOPE_W: return (from == DIR_SE) || (from == DIR_E) || (from == DIR_NE);
rubidium@9724: 					case SLOPE_S: return (from == DIR_NE) || (from == DIR_N) || (from == DIR_NW);
rubidium@9724: 					case SLOPE_E: return (from == DIR_NW) || (from == DIR_W) || (from == DIR_SW);
rubidium@9724: 					case SLOPE_N: return (from == DIR_SW) || (from == DIR_S) || (from == DIR_SE);
rubidium@9724: 					default: return false;
rubidium@9724: 				}
rubidium@9724: 			}
rubidium@9724: 			return false;
rubidium@9724: 
rubidium@9724: 		case MP_STATION:  return IsOilRig(tile) || (IsDock(tile) && GetTileSlope(tile, NULL) == SLOPE_FLAT) || IsBuoy(tile);
rubidium@9701: 		case MP_INDUSTRY: return (GetIndustrySpec(GetIndustryType(tile))->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0;
glx@10955: 		case MP_TUNNELBRIDGE: return GetTunnelBridgeTransportType(tile) == TRANSPORT_WATER && ReverseDiagDir(GetTunnelBridgeDirection(tile)) == DirToDiagDir(from);
rubidium@9701: 		default:          return false;
tron@1048: 	}
truelight@0: }
truelight@0: 
rubidium@9724: static void DrawWaterEdges(SpriteID base, TileIndex tile)
truelight@0: {
truelight@0: 	uint wa;
truelight@193: 
rubidium@9724: 	/* determine the edges around with water. */
rubidium@9724: 	wa  = IsWateredTile(TILE_ADDXY(tile, -1,  0), DIR_SW) << 0;
rubidium@9724: 	wa += IsWateredTile(TILE_ADDXY(tile,  0,  1), DIR_NW) << 1;
rubidium@9724: 	wa += IsWateredTile(TILE_ADDXY(tile,  1,  0), DIR_NE) << 2;
rubidium@9724: 	wa += IsWateredTile(TILE_ADDXY(tile,  0, -1), DIR_SE) << 3;
rubidium@9724: 
rubidium@9724: 	if (!(wa & 1)) DrawGroundSprite(base,     PAL_NONE);
rubidium@9724: 	if (!(wa & 2)) DrawGroundSprite(base + 1, PAL_NONE);
rubidium@9724: 	if (!(wa & 4)) DrawGroundSprite(base + 2, PAL_NONE);
rubidium@9724: 	if (!(wa & 8)) DrawGroundSprite(base + 3, PAL_NONE);
rubidium@9724: 
rubidium@9724: 	/* right corner */
rubidium@9724: 	switch (wa & 0x03) {
rubidium@9724: 		case 0: DrawGroundSprite(base + 4, PAL_NONE); break;
rubidium@9724: 		case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1), DIR_W)) DrawGroundSprite(base + 8, PAL_NONE); break;
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	/* bottom corner */
rubidium@9724: 	switch (wa & 0x06) {
rubidium@9724: 		case 0: DrawGroundSprite(base + 5, PAL_NONE); break;
rubidium@9724: 		case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1), DIR_N)) DrawGroundSprite(base + 9, PAL_NONE); break;
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	/* left corner */
rubidium@9724: 	switch (wa & 0x0C) {
rubidium@9724: 		case  0: DrawGroundSprite(base + 6, PAL_NONE); break;
rubidium@9724: 		case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1), DIR_E)) DrawGroundSprite(base + 10, PAL_NONE); break;
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	/* upper corner */
rubidium@9724: 	switch (wa & 0x09) {
rubidium@9724: 		case 0: DrawGroundSprite(base + 7, PAL_NONE); break;
rubidium@9724: 		case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1), DIR_S)) DrawGroundSprite(base + 11, PAL_NONE); break;
rubidium@9724: 	}
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /** Draw a plain sea water tile with no edges */
glx@9732: static void DrawSeaWater(TileIndex tile)
rubidium@9724: {
rubidium@9724: 	DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /** draw a canal styled water tile with dikes around */
glx@9732: static void DrawCanalWater(TileIndex tile)
rubidium@9724: {
glx@9732: 	DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);
rubidium@9724: 
rubidium@9620: 	/* Test for custom graphics, else use the default */
rubidium@9620: 	SpriteID dikes_base = GetCanalSprite(CF_DIKES, tile);
rubidium@9722: 	if (dikes_base == 0) dikes_base = SPR_CANAL_DIKES_BASE;
rubidium@9620: 
rubidium@9724: 	DrawWaterEdges(dikes_base, tile);
truelight@0: }
truelight@0: 
rubidium@6574: struct LocksDrawTileStruct {
truelight@0: 	int8 delta_x, delta_y, delta_z;
truelight@0: 	byte width, height, depth;
truelight@0: 	SpriteID image;
rubidium@6574: };
truelight@0: 
truelight@0: #include "table/water_land.h"
truelight@0: 
Darkvater@2436: static void DrawWaterStuff(const TileInfo *ti, const WaterDrawTileStruct *wdts,
glx@9732: 	SpriteID palette, uint base, bool draw_ground
tron@1399: )
truelight@0: {
rubidium@9620: 	SpriteID image;
rubidium@9620: 	SpriteID water_base = GetCanalSprite(CF_WATERSLOPE, ti->tile);
rubidium@9620: 	SpriteID locks_base = GetCanalSprite(CF_LOCKS, ti->tile);
rubidium@9620: 
rubidium@9620: 	/* If no custom graphics, use defaults */
rubidium@9722: 	if (water_base == 0) water_base = SPR_CANALS_BASE;
rubidium@9620: 	if (locks_base == 0) {
rubidium@9722: 		locks_base = SPR_SHIPLIFT_BASE;
rubidium@9620: 	} else {
rubidium@9620: 		/* If using custom graphics, ignore the variation on height */
rubidium@9620: 		base = 0;
rubidium@9620: 	}
rubidium@9620: 
rubidium@9620: 	image = wdts++->image;
rubidium@9620: 	if (image < 4) image += water_base;
glx@9732: 	if (draw_ground) DrawGroundSprite(image, PAL_NONE);
truelight@193: 
rubidium@9869: 	/* End now if buildings are invisible */
rubidium@9869: 	if (IsInvisibilitySet(TO_BUILDINGS)) return;
rubidium@9869: 
tron@1399: 	for (; wdts->delta_x != 0x80; wdts++) {
rubidium@9694: 		AddSortableSpriteToDraw(wdts->image + base + ((wdts->image < 24) ? locks_base : 0), palette,
peter1138@5919: 			ti->x + wdts->delta_x, ti->y + wdts->delta_y,
peter1138@5919: 			wdts->width, wdts->height,
rubidium@9694: 			wdts->unk, ti->z + wdts->delta_z,
rubidium@9722: 			IsTransparencySet(TO_BUILDINGS));
truelight@0: 	}
truelight@0: }
truelight@0: 
glx@9732: static void DrawRiverWater(const TileInfo *ti)
rubidium@9724: {
rubidium@9724: 	SpriteID image = SPR_FLAT_WATER_TILE;
rubidium@9724: 	SpriteID edges_base = GetCanalSprite(CF_RIVER_EDGE, ti->tile);
rubidium@9724: 
rubidium@9724: 	if (ti->tileh != SLOPE_FLAT) {
rubidium@9724: 		image = GetCanalSprite(CF_RIVER_SLOPE, ti->tile);
rubidium@9724: 		if (image == 0) {
rubidium@9724: 			switch (ti->tileh) {
rubidium@9724: 				case SLOPE_NW: image = SPR_WATER_SLOPE_Y_DOWN; break;
rubidium@9724: 				case SLOPE_SW: image = SPR_WATER_SLOPE_X_UP;   break;
rubidium@9724: 				case SLOPE_SE: image = SPR_WATER_SLOPE_Y_UP;   break;
rubidium@9724: 				case SLOPE_NE: image = SPR_WATER_SLOPE_X_DOWN; break;
rubidium@9724: 				default:       image = SPR_FLAT_WATER_TILE;    break;
rubidium@9724: 			}
rubidium@9724: 		} else {
rubidium@9724: 			switch (ti->tileh) {
rubidium@9724: 				default: NOT_REACHED();
rubidium@9724: 				case SLOPE_SE:             edges_base += 12; break;
rubidium@9724: 				case SLOPE_NE: image += 1; edges_base += 24; break;
rubidium@9724: 				case SLOPE_SW: image += 2; edges_base += 36; break;
rubidium@9724: 				case SLOPE_NW: image += 3; edges_base += 48; break;
rubidium@9724: 			}
rubidium@9724: 		}
rubidium@9724: 	}
rubidium@9724: 
glx@9732: 	DrawGroundSprite(image, PAL_NONE);
rubidium@9724: 
rubidium@9724: 	/* Draw river edges if available. */
rubidium@9724: 	if (edges_base > 48) DrawWaterEdges(edges_base, ti->tile);
rubidium@9724: }
rubidium@9724: 
rubidium@9724: void DrawShoreTile(Slope tileh)
rubidium@9724: {
rubidium@9724: 	/* Converts the enum Slope into an offset based on SPR_SHORE_BASE.
rubidium@9724: 	 * This allows to calculate the proper sprite to display for this Slope */
rubidium@9724: 	static const byte tileh_to_shoresprite[32] = {
rubidium@9724: 		0, 1, 2, 3, 4, 16, 6, 7, 8, 9, 17, 11, 12, 13, 14, 0,
rubidium@9724: 		0, 0, 0, 0, 0,  0, 0, 0, 0, 0,  0,  5,  0, 10, 15, 0,
rubidium@9724: 	};
rubidium@9724: 
rubidium@9724: 	assert(!IsHalftileSlope(tileh)); // Halftile slopes need to get handled earlier.
rubidium@9724: 	assert(tileh != SLOPE_FLAT);     // Shore is never flat
rubidium@9724: 
rubidium@9724: 	assert((tileh != SLOPE_EW) && (tileh != SLOPE_NS)); // No suitable sprites for current flooding behaviour
rubidium@9724: 
rubidium@9724: 	DrawGroundSprite(SPR_SHORE_BASE + tileh_to_shoresprite[tileh], PAL_NONE);
rubidium@9724: }
rubidium@9724: 
glx@9732: void DrawWaterClassGround(const TileInfo *ti) {
glx@9732: 	switch (GetWaterClass(ti->tile)) {
glx@9732: 		case WATER_CLASS_SEA:   DrawSeaWater(ti->tile); break;
glx@9732: 		case WATER_CLASS_CANAL: DrawCanalWater(ti->tile); break;
glx@9732: 		case WATER_CLASS_RIVER: DrawRiverWater(ti); break;
glx@9732: 	}
glx@9732: }
glx@9732: 
truelight@0: static void DrawTile_Water(TileInfo *ti)
truelight@0: {
celestar@3402: 	switch (GetWaterTileType(ti->tile)) {
rubidium@6507: 		case WATER_TILE_CLEAR:
glx@9732: 			DrawWaterClassGround(ti);
celestar@5573: 			DrawBridgeMiddle(ti);
celestar@3402: 			break;
truelight@0: 
rubidium@9723: 		case WATER_TILE_COAST: {
rubidium@9724: 			DrawShoreTile(ti->tileh);
celestar@5573: 			DrawBridgeMiddle(ti);
rubidium@9723: 		} break;
truelight@0: 
rubidium@6507: 		case WATER_TILE_LOCK: {
celestar@3425: 			const WaterDrawTileStruct *t = _shiplift_display_seq[GetSection(ti->tile)];
glx@9732: 			DrawWaterStuff(ti, t, 0, ti->z > t[3].delta_y ? 24 : 0, true);
celestar@3402: 		} break;
celestar@3402: 
rubidium@6507: 		case WATER_TILE_DEPOT:
glx@9732: 			DrawWaterClassGround(ti);
glx@9732: 			DrawWaterStuff(ti, _shipdepot_display_seq[GetSection(ti->tile)], PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)), 0, false);
celestar@3402: 			break;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void DrawShipDepotSprite(int x, int y, int image)
truelight@0: {
tron@1399: 	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];
truelight@0: 
peter1138@5919: 	DrawSprite(wdts++->image, PAL_NONE, x, y);
truelight@193: 
tron@1399: 	for (; wdts->delta_x != 0x80; wdts++) {
truelight@0: 		Point pt = RemapCoords(wdts->delta_x, wdts->delta_y, wdts->delta_z);
peter1138@5919: 		DrawSprite(wdts->image, PLAYER_SPRITE_COLOR(_local_player), x + pt.x, y + pt.y);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
tron@4231: static uint GetSlopeZ_Water(TileIndex tile, uint x, uint y)
truelight@193: {
tron@4231: 	uint z;
rubidium@5838: 	Slope tileh = GetTileSlope(tile, &z);
tron@4231: 
tron@4231: 	return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
truelight@0: }
truelight@0: 
rubidium@9694: static Foundation GetFoundation_Water(TileIndex tile, Slope tileh)
truelight@193: {
rubidium@9694: 	return FOUNDATION_NONE;
dominik@39: }
dominik@39: 
tron@1977: static void GetAcceptedCargo_Water(TileIndex tile, AcceptedCargo ac)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
tron@1977: static void GetTileDesc_Water(TileIndex tile, TileDesc *td)
truelight@0: {
celestar@3402: 	switch (GetWaterTileType(tile)) {
rubidium@6507: 		case WATER_TILE_CLEAR:
truelight@9718: 			if (!IsCanal(tile)) {
celestar@3402: 				td->str = STR_3804_WATER;
celestar@3402: 			} else {
celestar@3402: 				td->str = STR_LANDINFO_CANAL;
celestar@3402: 			}
celestar@3402: 			break;
rubidium@6507: 		case WATER_TILE_COAST: td->str = STR_3805_COAST_OR_RIVERBANK; break;
rubidium@6507: 		case WATER_TILE_LOCK : td->str = STR_LANDINFO_LOCK; break;
rubidium@6507: 		case WATER_TILE_DEPOT: td->str = STR_3806_SHIP_DEPOT; break;
celestar@3402: 		default: assert(0); break;
tron@2951: 	}
truelight@0: 
rubidium@10715: 	td->owner[0] = GetTileOwner(tile);
truelight@0: }
truelight@0: 
tron@1977: static void AnimateTile_Water(TileIndex tile)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
truelight@0: 
rubidium@6191: /**
rubidium@6191:  * Finds a vehicle to flood.
rubidium@6191:  * It does not find vehicles that are already crashed on bridges, i.e. flooded.
rubidium@6191:  * @param tile the tile where to find a vehicle to flood
rubidium@6191:  * @return a vehicle too flood or NULL when there is no vehicle too flood.
rubidium@6191:  */
rubidium@6191: static Vehicle *FindFloodableVehicleOnTile(TileIndex tile)
rubidium@6191: {
rubidium@9628: 	if (IsTileType(tile, MP_STATION) && IsAirport(tile)) {
rubidium@9628: 		const Station *st = GetStationByTile(tile);
rubidium@9628: 		const AirportFTAClass *airport = st->Airport();
rubidium@9628: 		for (uint x = 0; x < airport->size_x; x++) {
rubidium@9628: 			for (uint y = 0; y < airport->size_y; y++) {
rubidium@9628: 				tile = TILE_ADDXY(st->airport_tile, x, y);
rubidium@9628: 				Vehicle *v = FindVehicleOnTileZ(tile, 1 + airport->delta_z);
rubidium@9628: 				if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
rubidium@9628: 			}
rubidium@9628: 		}
rubidium@9628: 
rubidium@9628: 		/* No vehicle could be flooded on this airport anymore */
rubidium@9628: 		return NULL;
rubidium@9628: 	}
rubidium@9628: 
rubidium@9723: 	/* if non-uniform stations are disabled, flood some train in this train station (if there is any) */
glx@10776: 	if (!_settings_game.station.nonuniform_stations && IsTileType(tile, MP_STATION) && GetStationType(tile) == STATION_RAIL) {
rubidium@9723: 		const Station *st = GetStationByTile(tile);
rubidium@9723: 
rubidium@9723: 		BEGIN_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
rubidium@9723: 			if (st->TileBelongsToRailStation(t)) {
rubidium@9723: 				Vehicle *v = FindVehicleOnTileZ(t, 0);
rubidium@9723: 				if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
rubidium@9723: 			}
rubidium@9723: 		END_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
rubidium@9723: 
rubidium@9723: 		return NULL;
rubidium@9723: 	}
rubidium@9723: 
rubidium@6191: 	if (!IsBridgeTile(tile)) return FindVehicleOnTileZ(tile, 0);
rubidium@6191: 
rubidium@6191: 	TileIndex end = GetOtherBridgeEnd(tile);
rubidium@6191: 	byte z = GetBridgeHeight(tile);
rubidium@6191: 	Vehicle *v;
rubidium@6191: 
rubidium@6191: 	/* check the start tile first since as this is closest to the water */
rubidium@6191: 	v = FindVehicleOnTileZ(tile, z);
rubidium@6191: 	if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
rubidium@6191: 
rubidium@6191: 	/* check a vehicle in between both bridge heads */
rubidium@6191: 	v = FindVehicleBetween(tile, end, z, true);
rubidium@6191: 	if (v != NULL) return v;
rubidium@6191: 
rubidium@6191: 	/* check the end tile last to give fleeing vehicles a chance to escape */
rubidium@6191: 	v = FindVehicleOnTileZ(end, z);
rubidium@6191: 	return (v != NULL && (v->vehstatus & VS_CRASHED) == 0) ? v : NULL;
rubidium@6191: }
rubidium@6191: 
darkvater@149: static void FloodVehicle(Vehicle *v)
darkvater@149: {
darkvater@149: 	if (!(v->vehstatus & VS_CRASHED)) {
darkvater@168: 		uint16 pass = 0;
darkvater@149: 
rubidium@9628: 		if (v->type == VEH_TRAIN || v->type == VEH_ROAD || v->type == VEH_AIRCRAFT) {
rubidium@9628: 			if (v->type == VEH_AIRCRAFT) {
rubidium@9628: 				/* Crashing aircraft are always at z_pos == 1, never on z_pos == 0,
rubidium@9628: 				 * because that's always the shadow. Except for the heliport, because
rubidium@9628: 				 * that station has a big z_offset for the aircraft. */
rubidium@9628: 				if (!IsTileType(v->tile, MP_STATION) || !IsAirport(v->tile) || GetTileMaxZ(v->tile) != 0) return;
rubidium@9628: 				const Station *st = GetStationByTile(v->tile);
rubidium@9628: 				const AirportFTAClass *airport = st->Airport();
rubidium@9628: 
rubidium@9628: 				if (v->z_pos != airport->delta_z + 1) return;
rubidium@9628: 			}
truelight@193: 
rubidium@9701: 			if (v->type != VEH_AIRCRAFT) v = v->First();
darkvater@149: 
glx@9627: 			/* crash all wagons, and count passengers */
rubidium@10715: 			for (Vehicle *u = v; u != NULL; u = u->Next()) {
rubidium@10715: 				if (IsCargoInClass(u->cargo_type, CC_PASSENGERS)) pass += u->cargo.Count();
rubidium@10715: 				u->vehstatus |= VS_CRASHED;
rubidium@10715: 				MarkSingleVehicleDirty(u);
rubidium@10715: 			}
glx@9627: 
rubidium@9628: 			switch (v->type) {
rubidium@9628: 				default: NOT_REACHED();
rubidium@9628: 				case VEH_TRAIN:
rubidium@9628: 					if (IsFrontEngine(v)) pass += 4; // driver
rubidium@9628: 					v->u.rail.crash_anim_pos = 4000; // max 4440, disappear pretty fast
glx@10645: 					InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
rubidium@9628: 					break;
rubidium@9628: 
rubidium@9628: 				case VEH_ROAD:
rubidium@9628: 					if (IsRoadVehFront(v)) pass += 1; // driver
rubidium@9628: 					v->u.road.crashed_ctr = 2000; // max 2220, disappear pretty fast
glx@10645: 					InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
rubidium@9628: 					break;
rubidium@9628: 
rubidium@9628: 				case VEH_AIRCRAFT:
rubidium@9628: 					pass += 2; // driver
rubidium@9628: 					v->u.air.crashed_counter = 9000; // max 10000, disappear pretty fast
glx@10645: 					InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
rubidium@9628: 					break;
glx@9627: 			}
tron@2549: 		} else {
darkvater@168: 			return;
tron@2549: 		}
darkvater@149: 
rubidium@9724: 		InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
darkvater@149: 		InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
truelight@193: 
tron@534: 		SetDParam(0, pass);
darkvater@149: 		AddNewsItem(STR_B006_FLOOD_VEHICLE_DESTROYED,
glx@10645: 			NS_ACCIDENT_VEHICLE,
darkvater@149: 			v->index,
darkvater@149: 			0);
tron@2549: 		CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
tron@2549: 		SndPlayVehicleFx(SND_12_EXPLOSION, v);
dominik@714: 	}
darkvater@149: }
darkvater@149: 
truelight@9718: /**
rubidium@9724:  * Returns the behaviour of a tile during flooding.
rubidium@9724:  *
rubidium@9724:  * @return Behaviour of the tile
rubidium@9724:  */
rubidium@9724: static FloodingBehaviour GetFloodingBehaviour(TileIndex tile)
rubidium@9724: {
glx@9732: 	/* FLOOD_ACTIVE:  'single-corner-raised'-coast, sea, sea-shipdepots, sea-buoys, sea-docks (water part), rail with flooded halftile
rubidium@9724: 	 * FLOOD_DRYUP:   coast with more than one corner raised, coast with rail-track, coast with trees
glx@9732: 	 * FLOOD_PASSIVE: oilrig, water-industries
rubidium@9724: 	 * FLOOD_NONE:    canals, rivers, everything else
rubidium@9724: 	 */
rubidium@9724: 	switch (GetTileType(tile)) {
rubidium@9724: 		case MP_WATER:
rubidium@9724: 			if (IsCoast(tile)) {
rubidium@9724: 				Slope tileh = GetTileSlope(tile, NULL);
rubidium@9724: 				return (IsSlopeWithOneCornerRaised(tileh) ? FLOOD_ACTIVE : FLOOD_DRYUP);
rubidium@9724: 			} else {
rubidium@9724: 				return (GetWaterClass(tile) == WATER_CLASS_SEA) ? FLOOD_ACTIVE : FLOOD_NONE;
rubidium@9724: 			}
rubidium@9724: 
rubidium@9724: 		case MP_RAILWAY:
rubidium@9724: 			if (GetRailGroundType(tile) == RAIL_GROUND_WATER) {
rubidium@9724: 				return (IsSlopeWithOneCornerRaised(GetTileSlope(tile, NULL)) ? FLOOD_ACTIVE : FLOOD_DRYUP);
rubidium@9724: 			}
rubidium@9724: 			return FLOOD_NONE;
rubidium@9724: 
rubidium@9724: 		case MP_TREES:
rubidium@9724: 			return (GetTreeGround(tile) == TREE_GROUND_SHORE ? FLOOD_DRYUP : FLOOD_NONE);
rubidium@9724: 
rubidium@9724: 		case MP_STATION:
glx@9732: 			if (IsBuoy(tile) || (IsDock(tile) && GetTileSlope(tile, NULL) == SLOPE_FLAT)) {
glx@9732: 				return (GetWaterClass(tile) == WATER_CLASS_SEA ? FLOOD_ACTIVE : FLOOD_NONE);
glx@9732: 			}
glx@9732: 			return (IsOilRig(tile) ? FLOOD_PASSIVE : FLOOD_NONE);
rubidium@9724: 
rubidium@9724: 		case MP_INDUSTRY:
rubidium@9724: 			return ((GetIndustrySpec(GetIndustryType(tile))->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0 ? FLOOD_PASSIVE : FLOOD_NONE);
rubidium@9724: 
rubidium@9724: 		default:
rubidium@9724: 			return FLOOD_NONE;
rubidium@9724: 	}
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Floods a tile.
rubidium@9724:  */
rubidium@9724: static void DoFloodTile(TileIndex target)
rubidium@9724: {
rubidium@9826: 	assert(!IsTileType(target, MP_WATER));
rubidium@9724: 
rubidium@9724: 	bool flooded = false; // Will be set to true if something is changed.
rubidium@9724: 
rubidium@9724: 	_current_player = OWNER_WATER;
rubidium@9724: 
rubidium@9724: 	Slope tileh = GetTileSlope(target, NULL);
rubidium@9724: 	if (tileh != SLOPE_FLAT) {
rubidium@9724: 		/* make coast.. */
rubidium@9724: 		switch (GetTileType(target)) {
rubidium@9724: 			case MP_RAILWAY: {
rubidium@9724: 				if (!IsPlainRailTile(target)) break;
rubidium@9724: 
rubidium@9724: 				flooded = FloodHalftile(target);
rubidium@9724: 
rubidium@9724: 				Vehicle *v = FindFloodableVehicleOnTile(target);
rubidium@9724: 				if (v != NULL) FloodVehicle(v);
rubidium@9724: 
rubidium@9724: 				break;
rubidium@9724: 			}
rubidium@9724: 
rubidium@9724: 			case MP_TREES:
rubidium@9724: 				if (!IsSlopeWithOneCornerRaised(tileh)) {
rubidium@9724: 					SetTreeGroundDensity(target, TREE_GROUND_SHORE, 3);
rubidium@9724: 					MarkTileDirtyByTile(target);
rubidium@9724: 					flooded = true;
rubidium@9724: 					break;
rubidium@9724: 				}
rubidium@9724: 			/* FALL THROUGH */
rubidium@9724: 			case MP_CLEAR:
rubidium@9724: 				if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
rubidium@9724: 					MakeShore(target);
rubidium@9724: 					MarkTileDirtyByTile(target);
rubidium@9724: 					flooded = true;
rubidium@9724: 				}
rubidium@9724: 				break;
rubidium@9724: 
rubidium@9724: 			default:
rubidium@9724: 				break;
rubidium@9724: 		}
rubidium@9724: 	} else {
rubidium@9724: 		/* Flood vehicles */
rubidium@9724: 		Vehicle *v = FindFloodableVehicleOnTile(target);
rubidium@9724: 		if (v != NULL) FloodVehicle(v);
rubidium@9724: 
rubidium@9724: 		/* flood flat tile */
rubidium@9724: 		if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
rubidium@9724: 			MakeWater(target);
rubidium@9724: 			MarkTileDirtyByTile(target);
rubidium@9724: 			flooded = true;
rubidium@9724: 		}
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	if (flooded) {
rubidium@9724: 		/* Mark surrounding canal tiles dirty too to avoid glitches */
rubidium@9724: 		MarkCanalsAndRiversAroundDirty(target);
rubidium@9724: 
rubidium@9724: 		/* update signals if needed */
rubidium@9724: 		UpdateSignalsInBuffer();
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	_current_player = OWNER_NONE;
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /**
rubidium@9724:  * Drys a tile up.
rubidium@9724:  */
rubidium@9724: static void DoDryUp(TileIndex tile)
rubidium@9724: {
rubidium@9724: 	_current_player = OWNER_WATER;
rubidium@9724: 
rubidium@9724: 	switch (GetTileType(tile)) {
rubidium@9724: 		case MP_RAILWAY:
rubidium@9724: 			assert(IsPlainRailTile(tile));
rubidium@9724: 			assert(GetRailGroundType(tile) == RAIL_GROUND_WATER);
rubidium@9724: 
rubidium@9724: 			RailGroundType new_ground;
rubidium@9724: 			switch (GetTrackBits(tile)) {
rubidium@9724: 				case TRACK_BIT_UPPER: new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
rubidium@9724: 				case TRACK_BIT_LOWER: new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
rubidium@9724: 				case TRACK_BIT_LEFT:  new_ground = RAIL_GROUND_FENCE_VERT1;  break;
rubidium@9724: 				case TRACK_BIT_RIGHT: new_ground = RAIL_GROUND_FENCE_VERT2;  break;
rubidium@9724: 				default: NOT_REACHED();
rubidium@9724: 			}
rubidium@9724: 			SetRailGroundType(tile, new_ground);
rubidium@9724: 			MarkTileDirtyByTile(tile);
rubidium@9724: 			break;
rubidium@9724: 
rubidium@9724: 		case MP_TREES:
rubidium@9724: 			SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 3);
rubidium@9724: 			MarkTileDirtyByTile(tile);
rubidium@9724: 			break;
rubidium@9724: 
rubidium@9724: 		case MP_WATER:
rubidium@9724: 			assert(IsCoast(tile));
rubidium@9724: 
rubidium@9724: 			if (CmdSucceeded(DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
rubidium@9724: 				MakeClear(tile, CLEAR_GRASS, 3);
rubidium@9724: 				MarkTileDirtyByTile(tile);
rubidium@9724: 			}
rubidium@9724: 			break;
rubidium@9724: 
rubidium@9724: 		default: NOT_REACHED();
rubidium@9724: 	}
rubidium@9724: 
rubidium@9724: 	_current_player = OWNER_NONE;
rubidium@9724: }
rubidium@9724: 
rubidium@9724: /**
truelight@9718:  * Let a water tile floods its diagonal adjoining tiles
rubidium@9722:  * called from tunnelbridge_cmd, and by TileLoop_Industry() and TileLoop_Track()
truelight@9718:  *
truelight@9718:  * @param tile the water/shore tile that floods
truelight@9718:  */
tron@1977: void TileLoop_Water(TileIndex tile)
truelight@0: {
rubidium@9724: 	switch (GetFloodingBehaviour(tile)) {
rubidium@9724: 		case FLOOD_ACTIVE:
rubidium@9724: 			for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
rubidium@9724: 				TileIndex dest = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDir(dir));
rubidium@9724: 				if (dest == INVALID_TILE) continue;
rubidium@9826: 				/* do not try to flood water tiles - increases performance a lot */
rubidium@9826: 				if (IsTileType(dest, MP_WATER)) continue;
tron@2989: 
rubidium@9724: 				uint z_dest;
rubidium@9869: 				Slope slope_dest = GetFoundationSlope(dest, &z_dest) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
rubidium@9724: 				if (z_dest > 0) continue;
dominik@43: 
rubidium@9724: 				if (!HasBit(_flood_from_dirs[slope_dest], ReverseDir(dir))) continue;
dominik@43: 
rubidium@9724: 				DoFloodTile(dest);
rubidium@9724: 			}
rubidium@9724: 			break;
dominik@43: 
rubidium@9724: 		case FLOOD_DRYUP: {
rubidium@9869: 			Slope slope_here = GetFoundationSlope(tile, NULL) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
rubidium@9724: 			uint check_dirs = _flood_from_dirs[slope_here];
rubidium@9724: 			uint dir;
rubidium@9724: 			FOR_EACH_SET_BIT(dir, check_dirs) {
rubidium@9724: 				TileIndex dest = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDir((Direction)dir));
rubidium@9724: 				if (dest == INVALID_TILE) continue;
rubidium@9724: 
rubidium@9724: 				FloodingBehaviour dest_behaviour = GetFloodingBehaviour(dest);
rubidium@9724: 				if ((dest_behaviour == FLOOD_ACTIVE) || (dest_behaviour == FLOOD_PASSIVE)) return;
rubidium@9724: 			}
rubidium@9724: 			DoDryUp(tile);
rubidium@9724: 			break;
rubidium@9724: 		}
rubidium@9724: 
rubidium@9724: 		default: return;
tron@2639: 	}
rubidium@9724: }
dominik@43: 
rubidium@9724: void ConvertGroundTilesIntoWaterTiles()
rubidium@9724: {
rubidium@9724: 	TileIndex tile;
rubidium@9724: 	uint z;
rubidium@9724: 	Slope slope;
rubidium@9724: 
rubidium@9724: 	for (tile = 0; tile < MapSize(); ++tile) {
rubidium@9724: 		slope = GetTileSlope(tile, &z);
rubidium@9724: 		if (IsTileType(tile, MP_CLEAR) && z == 0) {
rubidium@9724: 			/* Make both water for tiles at level 0
rubidium@9724: 			 * and make shore, as that looks much better
rubidium@9724: 			 * during the generation. */
rubidium@9724: 			switch (slope) {
rubidium@9724: 				case SLOPE_FLAT:
rubidium@9724: 					MakeWater(tile);
rubidium@9724: 					break;
rubidium@9724: 
rubidium@9724: 				case SLOPE_N:
rubidium@9724: 				case SLOPE_E:
rubidium@9724: 				case SLOPE_S:
rubidium@9724: 				case SLOPE_W:
rubidium@9724: 					MakeShore(tile);
rubidium@9724: 					break;
rubidium@9724: 
rubidium@9724: 				default:
rubidium@9724: 					uint check_dirs = _flood_from_dirs[slope & ~SLOPE_STEEP];
rubidium@9724: 					uint dir;
rubidium@9724: 					FOR_EACH_SET_BIT(dir, check_dirs) {
rubidium@9724: 						TileIndex dest = TILE_ADD(tile, TileOffsByDir((Direction)dir));
rubidium@9869: 						Slope slope_dest = GetTileSlope(dest, NULL) & ~SLOPE_STEEP;
rubidium@9724: 						if (slope_dest == SLOPE_FLAT || IsSlopeWithOneCornerRaised(slope_dest)) {
rubidium@9724: 							MakeShore(tile);
rubidium@9724: 							break;
rubidium@9724: 						}
rubidium@9724: 					}
rubidium@9724: 					break;
rubidium@9724: 			}
rubidium@9724: 		}
tron@2639: 	}
truelight@0: }
truelight@0: 
glx@9732: static TrackStatus GetTileTrackStatus_Water(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
truelight@0: {
celestar@3423: 	static const byte coast_tracks[] = {0, 32, 4, 0, 16, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0};
tron@4169: 
tron@4169: 	TrackBits ts;
tron@4169: 
tron@2951: 	if (mode != TRANSPORT_WATER) return 0;
truelight@0: 
celestar@3423: 	switch (GetWaterTileType(tile)) {
rubidium@9724: 		case WATER_TILE_CLEAR: ts = (GetTileSlope(tile, NULL) == SLOPE_FLAT) ? TRACK_BIT_ALL : TRACK_BIT_NONE; break;
rubidium@6507: 		case WATER_TILE_COAST: ts = (TrackBits)coast_tracks[GetTileSlope(tile, NULL) & 0xF]; break;
glx@10645: 		case WATER_TILE_LOCK:  ts = DiagDirToDiagTrackBits(GetLockDirection(tile)); break;
rubidium@6507: 		case WATER_TILE_DEPOT: ts = AxisToTrackBits(GetShipDepotAxis(tile)); break;
celestar@3423: 		default: return 0;
truelight@0: 	}
KUDr@3900: 	if (TileX(tile) == 0) {
glx@9574: 		/* NE border: remove tracks that connects NE tile edge */
KUDr@3900: 		ts &= ~(TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_RIGHT);
KUDr@3900: 	}
KUDr@3900: 	if (TileY(tile) == 0) {
glx@9574: 		/* NW border: remove tracks that connects NW tile edge */
KUDr@3900: 		ts &= ~(TRACK_BIT_Y | TRACK_BIT_LEFT | TRACK_BIT_UPPER);
KUDr@3900: 	}
glx@9732: 	return CombineTrackStatus(TrackBitsToTrackdirBits(ts), TRACKDIR_BIT_NONE);
truelight@0: }
truelight@0: 
tron@1977: static void ClickTile_Water(TileIndex tile)
truelight@0: {
rubidium@6507: 	if (GetWaterTileType(tile) == WATER_TILE_DEPOT) {
celestar@3423: 		TileIndex tile2 = GetOtherShipDepotTile(tile);
truelight@193: 
rubidium@6585: 		ShowDepotWindow(tile < tile2 ? tile : tile2, VEH_SHIP);
truelight@0: 	}
truelight@0: }
truelight@0: 
Darkvater@2436: static void ChangeTileOwner_Water(TileIndex tile, PlayerID old_player, PlayerID new_player)
truelight@0: {
tron@1901: 	if (!IsTileOwner(tile, old_player)) return;
truelight@0: 
Darkvater@4848: 	if (new_player != PLAYER_SPECTATOR) {
tron@1902: 		SetTileOwner(tile, new_player);
glx@9732: 		return;
truelight@0: 	}
glx@9732: 
glx@9732: 	/* Remove depot */
glx@9732: 	if (IsShipDepot(tile)) DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
glx@9732: 
glx@9732: 	/* Set owner of canals and locks ... and also canal under dock there was before.
glx@9732: 	 * Check if the new owner after removing depot isn't OWNER_WATER. */
glx@9732: 	if (IsTileOwner(tile, old_player)) SetTileOwner(tile, OWNER_NONE);
truelight@0: }
truelight@0: 
rubidium@9723: static VehicleEnterTileStatus VehicleEnter_Water(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
rubidium@6317: 	return VETSB_CONTINUE;
truelight@0: }
truelight@0: 
rubidium@9701: static CommandCost TerraformTile_Water(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new)
rubidium@9701: {
rubidium@9701: 	/* Canals can't be terraformed */
truelight@9718: 	if (IsWaterTile(tile) && IsCanal(tile)) return_cmd_error(STR_MUST_DEMOLISH_CANAL_FIRST);
rubidium@9701: 
rubidium@9701: 	return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
rubidium@9701: }
rubidium@9701: 
truelight@0: 
rubidium@5838: extern const TileTypeProcs _tile_type_water_procs = {
rubidium@4344: 	DrawTile_Water,           /* draw_tile_proc */
rubidium@4344: 	GetSlopeZ_Water,          /* get_slope_z_proc */
rubidium@4344: 	ClearTile_Water,          /* clear_tile_proc */
rubidium@4344: 	GetAcceptedCargo_Water,   /* get_accepted_cargo_proc */
rubidium@4344: 	GetTileDesc_Water,        /* get_tile_desc_proc */
rubidium@4344: 	GetTileTrackStatus_Water, /* get_tile_track_status_proc */
rubidium@4344: 	ClickTile_Water,          /* click_tile_proc */
rubidium@4344: 	AnimateTile_Water,        /* animate_tile_proc */
rubidium@4344: 	TileLoop_Water,           /* tile_loop_clear */
rubidium@4344: 	ChangeTileOwner_Water,    /* change_tile_owner_clear */
rubidium@4344: 	NULL,                     /* get_produced_cargo_proc */
rubidium@4344: 	VehicleEnter_Water,       /* vehicle_enter_tile_proc */
rubidium@9694: 	GetFoundation_Water,      /* get_foundation_proc */
rubidium@9701: 	TerraformTile_Water,      /* terraform_tile_proc */
truelight@0: };