tron@2186: /* $Id$ */
tron@2186: 
belugas@6432: /** @file water_cmd.cpp */
belugas@6432: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@3189: #include "bridge_map.h"
rubidium@6160: #include "bridge.h"
tron@6134: #include "cmd_helper.h"
tron@3338: #include "station_map.h"
rubidium@8119: #include "tile_cmd.h"
maedhros@6453: #include "landscape.h"
rubidium@8224: #include "viewport_func.h"
rubidium@8116: #include "command_func.h"
truelight@0: #include "town.h"
darkvater@149: #include "news.h"
truelight@1313: #include "depot.h"
matthijs@1752: #include "vehicle_gui.h"
bjarni@2676: #include "train.h"
maedhros@6857: #include "roadveh.h"
rubidium@8108: #include "water.h"
tron@3111: #include "water_map.h"
rubidium@7507: #include "industry_map.h"
peter1138@5210: #include "newgrf.h"
peter1138@6583: #include "newgrf_canal.h"
rubidium@7389: #include "misc/autoptr.hpp"
belugas@7849: #include "transparency.h"
rubidium@8114: #include "strings_func.h"
rubidium@8131: #include "functions.h"
rubidium@8131: #include "window_func.h"
rubidium@8144: #include "vehicle_func.h"
rubidium@8157: #include "sound_func.h"
rubidium@8211: #include "variables.h"
rubidium@8254: #include "player_func.h"
rubidium@8270: #include "settings_type.h"
frosch@8380: #include "clear_map.h"
darkvater@149: 
rubidium@8264: #include "table/sprites.h"
rubidium@8264: #include "table/strings.h"
ludde@2261: 
frosch@8380: /**
frosch@8380:  * Describes the behaviour of a tile during flooding.
frosch@8380:  */
frosch@8380: enum FloodingBehaviour {
frosch@8380: 	FLOOD_NONE,    ///< The tile does not flood neighboured tiles.
frosch@8380: 	FLOOD_ACTIVE,  ///< The tile floods neighboured tiles.
frosch@8380: 	FLOOD_PASSIVE, ///< The tile does not actively flood neighboured tiles, but it prevents them from drying up.
frosch@8380: 	FLOOD_DRYUP,   ///< The tile drys up if it is not constantly flooded from neighboured tiles.
frosch@8380: };
frosch@8380: 
frosch@8380: /**
frosch@8380:  * Describes from which directions a specific slope can be flooded (if the tile is floodable at all).
frosch@8380:  */
frosch@8380: static const uint8 _flood_from_dirs[] = {
frosch@8380: 	(1 << DIR_NW) | (1 << DIR_SW) | (1 << DIR_SE) | (1 << DIR_NE), // SLOPE_FLAT
frosch@8380: 	(1 << DIR_NE) | (1 << DIR_SE),                                 // SLOPE_W
frosch@8380: 	(1 << DIR_NW) | (1 << DIR_NE),                                 // SLOPE_S
frosch@8380: 	(1 << DIR_NE),                                                 // SLOPE_SW
frosch@8380: 	(1 << DIR_NW) | (1 << DIR_SW),                                 // SLOPE_E
frosch@8380: 	0,                                                             // SLOPE_EW
frosch@8380: 	(1 << DIR_NW),                                                 // SLOPE_SE
frosch@8380: 	(1 << DIR_N ) | (1 << DIR_NW) | (1 << DIR_NE),                 // SLOPE_WSE, SLOPE_STEEP_S
frosch@8380: 	(1 << DIR_SW) | (1 << DIR_SE),                                 // SLOPE_N
frosch@8380: 	(1 << DIR_SE),                                                 // SLOPE_NW
frosch@8380: 	0,                                                             // SLOPE_NS
frosch@8380: 	(1 << DIR_E ) | (1 << DIR_NE) | (1 << DIR_SE),                 // SLOPE_NWS, SLOPE_STEEP_W
frosch@8380: 	(1 << DIR_SW),                                                 // SLOPE_NE
frosch@8380: 	(1 << DIR_S ) | (1 << DIR_SW) | (1 << DIR_SE),                 // SLOPE_ENW, SLOPE_STEEP_N
frosch@8380: 	(1 << DIR_W ) | (1 << DIR_SW) | (1 << DIR_NW),                 // SLOPE_SEN, SLOPE_STEEP_E
frosch@8380: };
frosch@8380: 
frosch@8380: /**
frosch@8380:  * Slopes that contain flat water and not only shore.
frosch@8380:  */
frosch@8380: static const uint32 _active_water_slopes = (1 << SLOPE_FLAT) | (1 << SLOPE_W) | (1 << SLOPE_S) | (1 << SLOPE_E) | (1 << SLOPE_N);
truelight@0: 
rubidium@7948: /**
rubidium@7948:  * Makes a tile canal or water depending on the surroundings.
rubidium@7948:  * This as for example docks and shipdepots do not store
rubidium@7948:  * whether the tile used to be canal or 'normal' water.
rubidium@7948:  * @param t the tile to change.
rubidium@7948:  * @param o the owner of the new tile.
rubidium@7948:  */
rubidium@7948: void MakeWaterOrCanalDependingOnSurroundings(TileIndex t, Owner o)
rubidium@7948: {
rubidium@7948: 	assert(GetTileSlope(t, NULL) == SLOPE_FLAT);
rubidium@7948: 
smatz@8022: 	/* Mark tile dirty in all cases */
smatz@8022: 	MarkTileDirtyByTile(t);
smatz@8022: 
rubidium@7948: 	/* Non-sealevel -> canal */
rubidium@7948: 	if (TileHeight(t) != 0) {
peter1138@8368: 		MakeCanal(t, o, Random());
rubidium@7948: 		return;
rubidium@7948: 	}
rubidium@7948: 
rubidium@7948: 	bool has_water = false;
rubidium@7948: 	bool has_canal = false;
rubidium@7948: 
rubidium@7948: 	for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
rubidium@7948: 		TileIndex neighbour = TileAddByDiagDir(t, dir);
rubidium@7948: 		if (IsTileType(neighbour, MP_WATER)) {
rubidium@8029: 			has_water |= IsSea(neighbour) || IsCoast(neighbour) || (IsShipDepot(neighbour) && GetShipDepotWaterOwner(neighbour) == OWNER_WATER);
rubidium@8029: 			has_canal |= IsCanal(neighbour) || (IsShipDepot(neighbour) && GetShipDepotWaterOwner(neighbour) != OWNER_WATER);
rubidium@7948: 		}
rubidium@7948: 	}
rubidium@7948: 	if (has_canal || !has_water) {
peter1138@8368: 		MakeCanal(t, o, Random());
rubidium@7948: 	} else {
rubidium@7948: 		MakeWater(t);
rubidium@7948: 	}
rubidium@7948: }
rubidium@7948: 
rubidium@7948: 
Darkvater@1784: /** Build a ship depot.
tron@3491:  * @param tile tile where ship depot is built
belugas@6432:  * @param flags type of operation
tron@6134:  * @param p1 bit 0 depot orientation (Axis)
Darkvater@1784:  * @param p2 unused
truelight@0:  */
rubidium@6943: CommandCost CmdBuildShipDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3491: 	TileIndex tile2;
truelight@193: 
rubidium@8230: 	CommandCost ret;
truelight@0: 
tron@6134: 	Axis axis = Extract<Axis, 0>(p1);
tron@6134: 
tron@6134: 	tile2 = tile + (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
truelight@0: 
rubidium@7739: 	if (!IsWaterTile(tile) || !IsWaterTile(tile2))
truelight@0: 		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);
truelight@0: 
celestar@5385: 	if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5385: 
rubidium@8029: 	Owner o1 = GetTileOwner(tile);
rubidium@8029: 	Owner o2 = GetTileOwner(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@7389: 	Depot *depot = new Depot(tile);
Darkvater@1784: 	if (depot == NULL) return CMD_ERROR;
rubidium@7389: 	AutoPtrT<Depot> d_auto_delete = depot;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
truelight@1313: 		depot->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
truelight@0: 
rubidium@8029: 		MakeShipDepot(tile,  _current_player, DEPOT_NORTH, axis, o1);
rubidium@8029: 		MakeShipDepot(tile2, _current_player, DEPOT_SOUTH, axis, o2);
celestar@3372: 		MarkTileDirtyByTile(tile);
celestar@3372: 		MarkTileDirtyByTile(tile2);
rubidium@7389: 		d_auto_delete.Detach();
truelight@0: 	}
truelight@0: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.build_ship_depot);
truelight@0: }
truelight@0: 
glx@8105: void MakeWaterOrCanalDependingOnOwner(TileIndex tile, Owner o)
rubidium@8029: {
rubidium@8029: 	if (o == OWNER_WATER) {
rubidium@8029: 		MakeWater(tile);
rubidium@8029: 	} else {
peter1138@8368: 		MakeCanal(tile, o, Random());
rubidium@8029: 	}
rubidium@8029: }
rubidium@8029: 
rubidium@6943: static CommandCost RemoveShipDepot(TileIndex tile, uint32 flags)
truelight@0: {
tron@1977: 	TileIndex tile2;
truelight@0: 
celestar@3373: 	if (!IsShipDepot(tile)) return CMD_ERROR;
tron@2951: 	if (!CheckTileOwnership(tile)) return CMD_ERROR;
rubidium@7758: 	if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
truelight@0: 
celestar@3373: 	tile2 = GetOtherShipDepotTile(tile);
truelight@0: 
rubidium@7758: 	if (!EnsureNoVehicleOnGround(tile2)) return CMD_ERROR;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
celestar@3373: 		/* Kill the depot, which is registered at the northernmost tile. Use that one */
rubidium@7389: 		delete GetDepotByTile(tile2 < tile ? tile2 : tile);
truelight@0: 
rubidium@8029: 		MakeWaterOrCanalDependingOnOwner(tile,  GetShipDepotWaterOwner(tile));
rubidium@8029: 		MakeWaterOrCanalDependingOnOwner(tile2, GetShipDepotWaterOwner(tile2));
tron@3111: 		MarkTileDirtyByTile(tile);
tron@3111: 		MarkTileDirtyByTile(tile2);
truelight@0: 	}
truelight@0: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_ship_depot);
truelight@0: }
truelight@0: 
belugas@6432: /** build a shiplift */
rubidium@6943: static CommandCost DoBuildShiplift(TileIndex tile, DiagDirection dir, uint32 flags)
truelight@0: {
rubidium@6943: 	CommandCost ret;
truelight@0: 	int delta;
truelight@0: 
belugas@6432: 	/* 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);
belugas@6432: 	/* lower tile */
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: 
belugas@6432: 	/* upper tile */
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@5385: 	if ((MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) ||
celestar@5385: 	    (MayHaveBridgeAbove(tile - delta) && IsBridgeAbove(tile - delta)) ||
celestar@5385: 	    (MayHaveBridgeAbove(tile + delta) && IsBridgeAbove(tile + delta))) {
celestar@5385: 		return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5385: 	}
celestar@5385: 
truelight@0: 	if (flags & DC_EXEC) {
peter1138@3940: 		MakeLock(tile, _current_player, dir);
celestar@3372: 		MarkTileDirtyByTile(tile);
celestar@3372: 		MarkTileDirtyByTile(tile - delta);
celestar@3372: 		MarkTileDirtyByTile(tile + delta);
truelight@0: 	}
truelight@0: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water * 22 >> 3);
truelight@0: }
truelight@0: 
rubidium@6943: static CommandCost RemoveShiplift(TileIndex tile, uint32 flags)
truelight@0: {
Darkvater@4559: 	TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));
truelight@0: 
rubidium@7270: 	if (!CheckTileOwnership(tile) && GetTileOwner(tile) != OWNER_NONE) return CMD_ERROR;
peter1138@3940: 
belugas@6432: 	/* make sure no vehicle is on the tile. */
rubidium@7758: 	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@7948: 		MakeWaterOrCanalDependingOnSurroundings(tile + delta, _current_player);
rubidium@7948: 		MakeWaterOrCanalDependingOnSurroundings(tile - delta, _current_player);
truelight@0: 	}
truelight@193: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water * 2);
truelight@0: }
truelight@0: 
rubidium@7545: /**
rubidium@7545:  * Marks the tiles around a tile as dirty.
rubidium@7545:  *
rubidium@7545:  * This functions marks the tiles around a given tile as dirty for repaint.
rubidium@7545:  *
rubidium@7545:  * @param tile The center of the tile where all other tiles are marked as dirty
rubidium@7545:  * @ingroup dirty
rubidium@7545:  * @see TerraformAddDirtyTileAround
rubidium@7545:  */
tron@1977: static void MarkTilesAroundDirty(TileIndex tile)
truelight@0: {
truelight@0: 	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, 1));
truelight@0: 	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, -1));
truelight@0: 	MarkTileDirtyByTile(TILE_ADDXY(tile, 1, 0));
truelight@0: 	MarkTileDirtyByTile(TILE_ADDXY(tile, -1, 0));
truelight@0: }
truelight@0: 
Darkvater@1796: /** Builds a lock (ship-lift)
tron@3491:  * @param tile tile where to place the lock
belugas@6432:  * @param flags type of operation
Darkvater@1796:  * @param p1 unused
Darkvater@1796:  * @param p2 unused
Darkvater@1796:  */
rubidium@6943: CommandCost CmdBuildLock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3157: 	DiagDirection dir;
darkvater@889: 
tron@3157: 	switch (GetTileSlope(tile, NULL)) {
tron@3636: 		case SLOPE_SW: dir = DIAGDIR_SW; break;
tron@3636: 		case SLOPE_SE: dir = DIAGDIR_SE; break;
tron@3636: 		case SLOPE_NW: dir = DIAGDIR_NW; break;
tron@3636: 		case SLOPE_NE: dir = DIAGDIR_NE; break;
tron@3157: 		default: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
Darkvater@1796: 	}
peter1138@8386: 
peter1138@8386: 	/* Disallow building of locks on river rapids */
peter1138@8386: 	if (IsRiverTile(tile)) return_cmd_error(STR_0239_SITE_UNSUITABLE);
peter1138@8386: 
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
belugas@6432:  * @param flags type of operation
Darkvater@1796:  * @param p1 start tile of stretch-dragging
rubidium@6286:  * @param p2 ctrl pressed - toggles ocean / canals at sealevel (ocean only allowed in the scenario editor)
Darkvater@1796:  */
rubidium@6943: CommandCost CmdBuildCanal(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
rubidium@8230: 	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;
peter1138@8360: 
rubidium@6286: 	/* Outside of the editor you can only build canals, not oceans */
peter1138@8361: 	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@6106: 	if (x < sx) Swap(x, sx);
tron@6106: 	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)) {
rubidium@6943: 		CommandCost ret;
celestar@5385: 
peter1138@8360: 		Slope slope = GetTileSlope(tile, NULL);
peter1138@8360: 		if (slope != SLOPE_FLAT && (p2 != 2 || (slope != SLOPE_NW && slope != SLOPE_NE && slope != SLOPE_SW && slope != SLOPE_SE))) {
tron@3636: 			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
tron@3636: 		}
truelight@0: 
belugas@6432: 		/* can't make water of water! */
peter1138@8360: 		if (IsTileType(tile, MP_WATER) && (!IsTileOwner(tile, OWNER_WATER) || p2 == 1)) continue;
Darkvater@1632: 
celestar@5385: 		ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
celestar@5385: 		if (CmdFailed(ret)) return ret;
rubidium@6950: 		cost.AddCost(ret);
tron@3183: 
tron@3189: 		if (flags & DC_EXEC) {
peter1138@8360: 			if (TileHeight(tile) == 0 && p2 == 1) {
celestar@5385: 				MakeWater(tile);
peter1138@8360: 			} else if (p2 == 2) {
peter1138@8368: 				MakeRiver(tile, Random());
celestar@5385: 			} else {
peter1138@8368: 				MakeCanal(tile, _current_player, Random());
celestar@5385: 			}
tron@3189: 			MarkTileDirtyByTile(tile);
tron@3189: 			MarkTilesAroundDirty(tile);
tron@3189: 		}
tron@3183: 
rubidium@6950: 		cost.AddCost(_price.clear_water);
Darkvater@1632: 	} END_TILE_LOOP(tile, size_x, size_y, 0);
truelight@0: 
rubidium@6950: 	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: 
rubidium@6943: static CommandCost ClearTile_Water(TileIndex tile, byte flags)
tron@1977: {
celestar@3425: 	switch (GetWaterTileType(tile)) {
rubidium@6181: 		case WATER_TILE_CLEAR:
peter1138@8360: 		case WATER_TILE_RIVER:
celestar@3425: 			if (flags & DC_NO_WATER) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
truelight@0: 
belugas@6432: 			/* Make sure it's not an edge tile. */
skidd13@7954: 			if (!IsInsideMM(TileX(tile), 1, MapMaxX() - 1) ||
skidd13@7954: 					!IsInsideMM(TileY(tile), 1, MapMaxY() - 1)) {
celestar@3425: 				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);
celestar@3425: 			}
tron@3017: 
rubidium@7509: 			/* Make sure no vehicle is on the tile */
rubidium@7758: 			if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
rubidium@7509: 
rubidium@7270: 			if (GetTileOwner(tile) != OWNER_WATER && GetTileOwner(tile) != OWNER_NONE && !CheckTileOwnership(tile)) return CMD_ERROR;
peter1138@3940: 
tron@3017: 			if (flags & DC_EXEC) DoClearSquare(tile);
rubidium@8230: 			return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water);
truelight@0: 
rubidium@6181: 		case WATER_TILE_COAST: {
tron@3636: 			Slope slope = GetTileSlope(tile, NULL);
tron@3439: 
belugas@6432: 			/* Make sure no vehicle is on the tile */
rubidium@7758: 			if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
tron@3439: 
tron@3439: 			if (flags & DC_EXEC) DoClearSquare(tile);
tron@3636: 			if (slope == SLOPE_N || slope == SLOPE_E || slope == SLOPE_S || slope == SLOPE_W) {
rubidium@8230: 				return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_water);
tron@3439: 			} else {
rubidium@8230: 				return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_roughland);
celestar@3425: 			}
tron@3439: 		}
tron@3439: 
rubidium@6181: 		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;
belugas@6432: 			/* move to the middle tile.. */
tron@3439: 			return RemoveShiplift(tile + ToTileIndexDiff(_shiplift_tomiddle_offs[GetSection(tile)]), flags);
tron@3439: 		}
tron@3439: 
rubidium@6181: 		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: 
belugas@6432: /** return true if a tile is a water tile. */
tron@1048: static bool IsWateredTile(TileIndex tile)
truelight@0: {
tron@1214: 	switch (GetTileType(tile)) {
tron@3977: 		case MP_WATER:
peter1138@4087: 			if (!IsCoast(tile)) return true;
peter1138@4087: 
peter1138@4087: 			switch (GetTileSlope(tile, NULL)) {
peter1138@4087: 				case SLOPE_W:
peter1138@4087: 				case SLOPE_S:
peter1138@4087: 				case SLOPE_E:
peter1138@4087: 				case SLOPE_N:
peter1138@4087: 					return true;
peter1138@4087: 
peter1138@4087: 				default:
peter1138@4087: 					return false;
peter1138@4087: 			}
tron@3977: 
smatz@8274: 		case MP_RAILWAY:  return GetRailGroundType(tile) == RAIL_GROUND_WATER;
rubidium@7507: 		case MP_STATION:  return IsOilRig(tile) || IsDock(tile) || IsBuoy(tile);
rubidium@7507: 		case MP_INDUSTRY: return (GetIndustrySpec(GetIndustryType(tile))->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0;
rubidium@7507: 		default:          return false;
tron@1048: 	}
truelight@0: }
truelight@0: 
peter1138@8360: static void DrawWaterEdges(SpriteID base, TileIndex tile)
truelight@0: {
truelight@0: 	uint wa;
truelight@193: 
belugas@6432: 	/* determine the edges around with water. */
rubidium@7507: 	wa  = IsWateredTile(TILE_ADDXY(tile, -1,  0)) << 0;
rubidium@7507: 	wa += IsWateredTile(TILE_ADDXY(tile,  0,  1)) << 1;
rubidium@7507: 	wa += IsWateredTile(TILE_ADDXY(tile,  1,  0)) << 2;
rubidium@7507: 	wa += IsWateredTile(TILE_ADDXY(tile,  0, -1)) << 3;
truelight@193: 
peter1138@8360: 	if (!(wa & 1)) DrawGroundSprite(base,     PAL_NONE);
peter1138@8360: 	if (!(wa & 2)) DrawGroundSprite(base + 1, PAL_NONE);
peter1138@8360: 	if (!(wa & 4)) DrawGroundSprite(base + 2, PAL_NONE);
peter1138@8360: 	if (!(wa & 8)) DrawGroundSprite(base + 3, PAL_NONE);
truelight@0: 
belugas@6432: 	/* right corner */
tron@2989: 	switch (wa & 0x03) {
peter1138@8360: 		case 0: DrawGroundSprite(base + 4, PAL_NONE); break;
peter1138@8360: 		case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1))) DrawGroundSprite(base + 8, PAL_NONE); break;
tron@2989: 	}
truelight@0: 
belugas@6432: 	/* bottom corner */
tron@2989: 	switch (wa & 0x06) {
peter1138@8360: 		case 0: DrawGroundSprite(base + 5, PAL_NONE); break;
peter1138@8360: 		case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1))) DrawGroundSprite(base + 9, PAL_NONE); break;
tron@2989: 	}
truelight@0: 
belugas@6432: 	/* left corner */
tron@2989: 	switch (wa & 0x0C) {
peter1138@8360: 		case  0: DrawGroundSprite(base + 6, PAL_NONE); break;
peter1138@8360: 		case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1))) DrawGroundSprite(base + 10, PAL_NONE); break;
tron@2989: 	}
truelight@0: 
belugas@6432: 	/* upper corner */
tron@2989: 	switch (wa & 0x09) {
peter1138@8360: 		case 0: DrawGroundSprite(base + 7, PAL_NONE); break;
peter1138@8360: 		case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1))) DrawGroundSprite(base + 11, PAL_NONE); break;
tron@2989: 	}
truelight@0: }
truelight@0: 
peter1138@8360: /** draw a canal styled water tile with dikes around */
peter1138@8360: void DrawCanalWater(TileIndex tile)
peter1138@8360: {
peter1138@8360: 	/* Test for custom graphics, else use the default */
peter1138@8360: 	SpriteID dikes_base = GetCanalSprite(CF_DIKES, tile);
peter1138@8360: 	if (dikes_base == 0) dikes_base = SPR_CANAL_DIKES_BASE;
peter1138@8360: 
peter1138@8360: 	DrawWaterEdges(dikes_base, tile);
peter1138@8360: }
peter1138@8360: 
rubidium@6248: struct LocksDrawTileStruct {
truelight@0: 	int8 delta_x, delta_y, delta_z;
truelight@0: 	byte width, height, depth;
truelight@0: 	SpriteID image;
rubidium@6248: };
truelight@0: 
truelight@0: #include "table/water_land.h"
truelight@0: 
Darkvater@2436: static void DrawWaterStuff(const TileInfo *ti, const WaterDrawTileStruct *wdts,
peter1138@5668: 	SpriteID palette, uint base
tron@1399: )
truelight@0: {
peter1138@6583: 	SpriteID image;
peter1138@6583: 	SpriteID water_base = GetCanalSprite(CF_WATERSLOPE, ti->tile);
peter1138@6583: 	SpriteID locks_base = GetCanalSprite(CF_LOCKS, ti->tile);
peter1138@6583: 
peter1138@6583: 	/* If no custom graphics, use defaults */
rubidium@7882: 	if (water_base == 0) water_base = SPR_CANALS_BASE;
peter1138@6583: 	if (locks_base == 0) {
rubidium@7882: 		locks_base = SPR_SHIPLIFT_BASE;
peter1138@6583: 	} else {
peter1138@6583: 		/* If using custom graphics, ignore the variation on height */
peter1138@6583: 		base = 0;
peter1138@6583: 	}
peter1138@6583: 
peter1138@6583: 	image = wdts++->image;
peter1138@6583: 	if (image < 4) image += water_base;
peter1138@6583: 	DrawGroundSprite(image, PAL_NONE);
truelight@193: 
tron@1399: 	for (; wdts->delta_x != 0x80; wdts++) {
rubidium@7333: 		AddSortableSpriteToDraw(wdts->image + base + ((wdts->image < 24) ? locks_base : 0), palette,
peter1138@5668: 			ti->x + wdts->delta_x, ti->y + wdts->delta_y,
peter1138@5668: 			wdts->width, wdts->height,
rubidium@7333: 			wdts->unk, ti->z + wdts->delta_z,
belugas@7849: 			IsTransparencySet(TO_BUILDINGS));
truelight@0: 	}
truelight@0: }
truelight@0: 
peter1138@8360: static void DrawRiverWater(const TileInfo *ti)
peter1138@8360: {
peter1138@8360: 	SpriteID image = SPR_FLAT_WATER_TILE;
peter1138@8360: 	SpriteID edges_base = GetCanalSprite(CF_RIVER_EDGE, ti->tile);
peter1138@8360: 
peter1138@8360: 	if (ti->tileh != SLOPE_FLAT) {
peter1138@8360: 		image = GetCanalSprite(CF_RIVER_SLOPE, ti->tile);
peter1138@8360: 		if (image == 0) {
peter1138@8360: 			image = SPR_FLAT_WATER_TILE;
peter1138@8360: 		} else {
peter1138@8360: 			switch (ti->tileh) {
peter1138@8360: 				default: NOT_REACHED();
peter1138@8360: 				case SLOPE_SE:             edges_base += 12; break;
peter1138@8360: 				case SLOPE_NE: image += 1; edges_base += 24; break;
peter1138@8360: 				case SLOPE_SW: image += 2; edges_base += 36; break;
peter1138@8360: 				case SLOPE_NW: image += 3; edges_base += 48; break;
peter1138@8360: 			}
peter1138@8360: 		}
peter1138@8360: 	}
peter1138@8360: 
peter1138@8360: 	DrawGroundSprite(image, PAL_NONE);
peter1138@8360: 
peter1138@8360: 	/* Draw canal dikes if there are no river edges to draw. */
peter1138@8360: 	if (edges_base <= 48) edges_base = SPR_CANAL_DIKES_BASE;
peter1138@8360: 	DrawWaterEdges(edges_base, ti->tile);
peter1138@8360: }
peter1138@8360: 
frosch@8380: void DrawShoreTile(Slope tileh)
frosch@8380: {
frosch@8380: 	/* Converts the enum Slope into an offset based on SPR_SHORE_BASE.
frosch@8380: 	 * This allows to calculate the proper sprite to display for this Slope */
frosch@8380: 	static const byte tileh_to_shoresprite[32] = {
frosch@8380: 		0, 1, 2, 3, 4, 16, 6, 7, 8, 9, 17, 11, 12, 13, 14, 0,
frosch@8380: 		0, 0, 0, 0, 0,  0, 0, 0, 0, 0,  0,  5,  0, 10, 15, 0,
frosch@8380: 	};
frosch@8380: 
frosch@8380: 	assert(!IsHalftileSlope(tileh)); // Halftile slopes need to get handled earlier.
frosch@8380: 	assert(tileh != SLOPE_FLAT);     // Shore is never flat
frosch@8380: 
frosch@8380: 	assert((tileh != SLOPE_EW) && (tileh != SLOPE_NS)); // No suitable sprites for current flooding behaviour
frosch@8380: 
frosch@8380: 	DrawGroundSprite(SPR_SHORE_BASE + tileh_to_shoresprite[tileh], PAL_NONE);
frosch@8380: }
frosch@8380: 
truelight@0: static void DrawTile_Water(TileInfo *ti)
truelight@0: {
celestar@3402: 	switch (GetWaterTileType(ti->tile)) {
rubidium@6181: 		case WATER_TILE_CLEAR:
peter1138@5668: 			DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);
rubidium@7739: 			if (IsCanal(ti->tile)) DrawCanalWater(ti->tile);
celestar@5385: 			DrawBridgeMiddle(ti);
celestar@3402: 			break;
truelight@0: 
belugas@8164: 		case WATER_TILE_COAST: {
frosch@8380: 			DrawShoreTile(ti->tileh);
celestar@5385: 			DrawBridgeMiddle(ti);
belugas@8164: 		} break;
truelight@0: 
rubidium@6181: 		case WATER_TILE_LOCK: {
celestar@3425: 			const WaterDrawTileStruct *t = _shiplift_display_seq[GetSection(ti->tile)];
celestar@3402: 			DrawWaterStuff(ti, t, 0, ti->z > t[3].delta_y ? 24 : 0);
celestar@3402: 		} break;
celestar@3402: 
rubidium@6181: 		case WATER_TILE_DEPOT:
celestar@3425: 			DrawWaterStuff(ti, _shipdepot_display_seq[GetSection(ti->tile)], PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)), 0);
celestar@3402: 			break;
peter1138@8360: 
peter1138@8360: 		case WATER_TILE_RIVER:
peter1138@8360: 			DrawRiverWater(ti);
peter1138@8360: 			DrawBridgeMiddle(ti);
peter1138@8360: 			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@5668: 	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@5668: 		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@5587: 	Slope tileh = GetTileSlope(tile, &z);
tron@4231: 
tron@4231: 	return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
truelight@0: }
truelight@0: 
rubidium@7335: static Foundation GetFoundation_Water(TileIndex tile, Slope tileh)
truelight@193: {
rubidium@7335: 	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@6181: 		case WATER_TILE_CLEAR:
peter1138@8360: 		case WATER_TILE_RIVER:
rubidium@7739: 			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@6181: 		case WATER_TILE_COAST: td->str = STR_3805_COAST_OR_RIVERBANK; break;
rubidium@6181: 		case WATER_TILE_LOCK : td->str = STR_LANDINFO_LOCK; break;
rubidium@6181: 		case WATER_TILE_DEPOT: td->str = STR_3806_SHIP_DEPOT; break;
celestar@3402: 		default: assert(0); break;
tron@2951: 	}
truelight@0: 
tron@1901: 	td->owner = GetTileOwner(tile);
truelight@0: }
truelight@0: 
tron@1977: static void AnimateTile_Water(TileIndex tile)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
rubidium@7771: /**
smatz@8044:  * Marks tile dirty if it is a canal tile.
smatz@8044:  * Called to avoid glitches when flooding tiles next to canal tile.
smatz@8044:  *
smatz@8044:  * @param tile tile to check
smatz@8044:  */
frosch@8331: static inline void MarkTileDirtyIfCanal(TileIndex tile)
frosch@8331: {
smatz@8044: 	if (IsTileType(tile, MP_WATER) && IsCanal(tile)) MarkTileDirtyByTile(tile);
smatz@8044: }
smatz@8044: 
truelight@0: 
rubidium@5940: /**
rubidium@5940:  * Finds a vehicle to flood.
rubidium@5940:  * It does not find vehicles that are already crashed on bridges, i.e. flooded.
rubidium@5940:  * @param tile the tile where to find a vehicle to flood
rubidium@5940:  * @return a vehicle too flood or NULL when there is no vehicle too flood.
rubidium@5940:  */
rubidium@5940: static Vehicle *FindFloodableVehicleOnTile(TileIndex tile)
rubidium@5940: {
rubidium@6906: 	if (IsTileType(tile, MP_STATION) && IsAirport(tile)) {
rubidium@6906: 		const Station *st = GetStationByTile(tile);
rubidium@6906: 		const AirportFTAClass *airport = st->Airport();
rubidium@6906: 		for (uint x = 0; x < airport->size_x; x++) {
rubidium@6906: 			for (uint y = 0; y < airport->size_y; y++) {
rubidium@6906: 				tile = TILE_ADDXY(st->airport_tile, x, y);
rubidium@6906: 				Vehicle *v = FindVehicleOnTileZ(tile, 1 + airport->delta_z);
rubidium@6906: 				if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
rubidium@6906: 			}
rubidium@6906: 		}
rubidium@6906: 
rubidium@6906: 		/* No vehicle could be flooded on this airport anymore */
rubidium@6906: 		return NULL;
rubidium@6906: 	}
rubidium@6906: 
smatz@8014: 	/* if non-uniform stations are disabled, flood some train in this train station (if there is any) */
smatz@8014: 	if (!_patches.nonuniform_stations && IsTileType(tile, MP_STATION) && GetStationType(tile) == STATION_RAIL) {
smatz@8014: 		const Station *st = GetStationByTile(tile);
smatz@8014: 
smatz@8014: 		BEGIN_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
smatz@8014: 			if (st->TileBelongsToRailStation(t)) {
smatz@8014: 				Vehicle *v = FindVehicleOnTileZ(t, 0);
smatz@8014: 				if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
smatz@8014: 			}
smatz@8014: 		END_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
smatz@8014: 
smatz@8014: 		return NULL;
smatz@8014: 	}
smatz@8014: 
rubidium@5940: 	if (!IsBridgeTile(tile)) return FindVehicleOnTileZ(tile, 0);
rubidium@5940: 
rubidium@5940: 	TileIndex end = GetOtherBridgeEnd(tile);
rubidium@5940: 	byte z = GetBridgeHeight(tile);
rubidium@5940: 	Vehicle *v;
rubidium@5940: 
rubidium@5940: 	/* check the start tile first since as this is closest to the water */
rubidium@5940: 	v = FindVehicleOnTileZ(tile, z);
rubidium@5940: 	if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
rubidium@5940: 
rubidium@5940: 	/* check a vehicle in between both bridge heads */
rubidium@5940: 	v = FindVehicleBetween(tile, end, z, true);
rubidium@5940: 	if (v != NULL) return v;
rubidium@5940: 
rubidium@5940: 	/* check the end tile last to give fleeing vehicles a chance to escape */
rubidium@5940: 	v = FindVehicleOnTileZ(end, z);
rubidium@5940: 	return (v != NULL && (v->vehstatus & VS_CRASHED) == 0) ? v : NULL;
rubidium@5940: }
rubidium@5940: 
darkvater@149: static void FloodVehicle(Vehicle *v)
darkvater@149: {
darkvater@149: 	if (!(v->vehstatus & VS_CRASHED)) {
darkvater@168: 		uint16 pass = 0;
darkvater@149: 
rubidium@6906: 		if (v->type == VEH_TRAIN || v->type == VEH_ROAD || v->type == VEH_AIRCRAFT) {
rubidium@6906: 			if (v->type == VEH_AIRCRAFT) {
rubidium@6906: 				/* Crashing aircraft are always at z_pos == 1, never on z_pos == 0,
rubidium@6906: 				 * because that's always the shadow. Except for the heliport, because
rubidium@6906: 				 * that station has a big z_offset for the aircraft. */
rubidium@6906: 				if (!IsTileType(v->tile, MP_STATION) || !IsAirport(v->tile) || GetTileMaxZ(v->tile) != 0) return;
rubidium@6906: 				const Station *st = GetStationByTile(v->tile);
rubidium@6906: 				const AirportFTAClass *airport = st->Airport();
rubidium@6906: 
rubidium@6906: 				if (v->z_pos != airport->delta_z + 1) return;
rubidium@6906: 			}
belugas@4171: 			Vehicle *u;
truelight@193: 
rubidium@7497: 			if (v->type != VEH_AIRCRAFT) v = v->First();
darkvater@149: 			u = v;
darkvater@149: 
maedhros@6857: 			/* crash all wagons, and count passengers */
darkvater@149: 			BEGIN_ENUM_WAGONS(v)
rubidium@7010: 				if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) pass += v->cargo.Count();
darkvater@149: 				v->vehstatus |= VS_CRASHED;
smatz@8317: 				MarkSingleVehicleDirty(v);
darkvater@149: 			END_ENUM_WAGONS(v)
darkvater@149: 
darkvater@149: 			v = u;
maedhros@6857: 
rubidium@6906: 			switch (v->type) {
rubidium@6906: 				default: NOT_REACHED();
rubidium@6906: 				case VEH_TRAIN:
rubidium@6906: 					if (IsFrontEngine(v)) pass += 4; // driver
rubidium@6906: 					v->u.rail.crash_anim_pos = 4000; // max 4440, disappear pretty fast
rubidium@6906: 					break;
rubidium@6906: 
rubidium@6906: 				case VEH_ROAD:
rubidium@6906: 					if (IsRoadVehFront(v)) pass += 1; // driver
rubidium@6906: 					v->u.road.crashed_ctr = 2000; // max 2220, disappear pretty fast
rubidium@6906: 					break;
rubidium@6906: 
rubidium@6906: 				case VEH_AIRCRAFT:
rubidium@6906: 					pass += 2; // driver
rubidium@6906: 					v->u.air.crashed_counter = 9000; // max 10000, disappear pretty fast
rubidium@6906: 					break;
maedhros@6857: 			}
maedhros@6857: 
tron@588: 			RebuildVehicleLists();
tron@2549: 		} else {
darkvater@168: 			return;
tron@2549: 		}
darkvater@149: 
smatz@8350: 		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,
rubidium@6491: 			NEWS_FLAGS(NM_THIN, NF_VIEWPORT | NF_VEHICLE, NT_ACCIDENT, 0),
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: 
belugas@7731: /**
frosch@8380:  * Returns the behaviour of a tile during flooding.
frosch@8380:  *
frosch@8380:  * @return Behaviour of the tile
frosch@8380:  */
frosch@8380: static FloodingBehaviour GetFloodingBehaviour(TileIndex tile)
frosch@8380: {
frosch@8380: 	/* FLOOD_ACTIVE:  'single-corner-raised'-coast, sea, sea-shipdepots, sea-buoys, rail with flooded halftile
frosch@8380: 	 * FLOOD_DRYUP:   coast with more than one corner raised
frosch@8380: 	 * FLOOD_PASSIVE: oilrig, dock, water-industries
frosch@8380: 	 * FLOOD_NONE:    canals, rivers, everything else
frosch@8380: 	 */
frosch@8380: 	switch (GetTileType(tile)) {
frosch@8380: 		case MP_WATER:
frosch@8380: 			if (IsCoast(tile)) {
frosch@8380: 				Slope tileh = GetTileSlope(tile, NULL);
frosch@8380: 				return (HasBit(_active_water_slopes, tileh) ? FLOOD_ACTIVE : FLOOD_DRYUP);
frosch@8380: 			} else {
frosch@8380: 				return ((IsSea(tile) || (IsShipDepot(tile) && (GetShipDepotWaterOwner(tile) == OWNER_WATER))) ? FLOOD_ACTIVE : FLOOD_NONE);
frosch@8380: 			}
frosch@8380: 
frosch@8380: 		case MP_RAILWAY:
frosch@8380: 			return ((GetRailGroundType(tile) == RAIL_GROUND_WATER) ? FLOOD_ACTIVE : FLOOD_NONE);
frosch@8380: 
frosch@8380: 		case MP_STATION:
frosch@8380: 			if (IsSeaBuoyTile(tile)) return FLOOD_ACTIVE;
frosch@8380: 			if (IsOilRig(tile) || IsDock(tile)) return FLOOD_PASSIVE;
frosch@8380: 			return FLOOD_NONE;
frosch@8380: 
frosch@8380: 		case MP_INDUSTRY:
frosch@8380: 			return ((GetIndustrySpec(GetIndustryType(tile))->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0 ? FLOOD_PASSIVE : FLOOD_NONE);
frosch@8380: 
frosch@8380: 		default:
frosch@8380: 			return FLOOD_NONE;
frosch@8380: 	}
frosch@8380: }
frosch@8380: 
frosch@8380: /**
frosch@8380:  * Floods a tile.
frosch@8380:  */
frosch@8380: static void DoFloodTile(TileIndex target)
frosch@8380: {
frosch@8380: 	if (IsTileType(target, MP_WATER)) return;
frosch@8380: 
frosch@8380: 	bool flooded = false; // Will be set to true if something is changed.
frosch@8380: 
frosch@8380: 	_current_player = OWNER_WATER;
frosch@8380: 
frosch@8380: 	if (GetTileSlope(target, NULL) != SLOPE_FLAT) {
frosch@8380: 		/* make coast.. */
frosch@8380: 		switch (GetTileType(target)) {
frosch@8380: 			case MP_RAILWAY: {
frosch@8380: 				if (!IsPlainRailTile(target)) break;
frosch@8380: 
frosch@8380: 				flooded = FloodHalftile(target);
frosch@8380: 
frosch@8380: 				Vehicle *v = FindFloodableVehicleOnTile(target);
frosch@8380: 				if (v != NULL) FloodVehicle(v);
frosch@8380: 
frosch@8380: 				break;
frosch@8380: 			}
frosch@8380: 
frosch@8380: 			case MP_CLEAR:
frosch@8380: 			case MP_TREES:
frosch@8380: 				if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
frosch@8380: 					MakeShore(target);
frosch@8380: 					MarkTileDirtyByTile(target);
frosch@8380: 					flooded = true;
frosch@8380: 				}
frosch@8380: 				break;
frosch@8380: 
frosch@8380: 			default:
frosch@8380: 				break;
frosch@8380: 		}
frosch@8380: 	} else {
frosch@8380: 		/* Flood vehicles */
frosch@8380: 		Vehicle *v = FindFloodableVehicleOnTile(target);
frosch@8380: 		if (v != NULL) FloodVehicle(v);
frosch@8380: 
frosch@8380: 		/* flood flat tile */
frosch@8380: 		if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
frosch@8380: 			MakeWater(target);
frosch@8380: 			MarkTileDirtyByTile(target);
frosch@8380: 			flooded = true;
frosch@8380: 		}
frosch@8380: 	}
frosch@8380: 
frosch@8380: 	if (flooded) {
frosch@8380: 		/* Mark surrounding canal tiles dirty too to avoid glitches */
frosch@8380: 		for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
frosch@8380: 			MarkTileDirtyIfCanal(target + TileOffsByDir(dir));
frosch@8380: 		}
frosch@8380: 
frosch@8380: 		/* update signals if needed */
frosch@8380: 		UpdateSignalsInBuffer();
frosch@8380: 	}
frosch@8380: 
frosch@8380: 	_current_player = OWNER_NONE;
frosch@8380: }
frosch@8380: 
frosch@8380: /**
frosch@8380:  * Drys a tile up.
frosch@8380:  */
frosch@8380: static void DoDryUp(TileIndex tile)
frosch@8380: {
frosch@8380: 	assert(IsTileType(tile, MP_WATER) && IsCoast(tile));
frosch@8380: 	_current_player = OWNER_WATER;
frosch@8380: 
frosch@8380: 	if (CmdSucceeded(DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
frosch@8380: 		MakeClear(tile, CLEAR_GRASS, 3);
frosch@8380: 		MarkTileDirtyByTile(tile);
frosch@8380: 	}
frosch@8380: 
frosch@8380: 	_current_player = OWNER_NONE;
frosch@8380: }
frosch@8380: 
frosch@8380: /**
belugas@7731:  * Let a water tile floods its diagonal adjoining tiles
rubidium@7771:  * called from tunnelbridge_cmd, and by TileLoop_Industry() and TileLoop_Track()
belugas@7731:  *
belugas@7731:  * @param tile the water/shore tile that floods
belugas@7731:  */
tron@1977: void TileLoop_Water(TileIndex tile)
truelight@0: {
frosch@8380: 	switch (GetFloodingBehaviour(tile)) {
frosch@8380: 		case FLOOD_ACTIVE:
frosch@8380: 			for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
frosch@8380: 				TileIndex dest = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDir(dir));
frosch@8380: 				if (dest == INVALID_TILE) continue;
tron@2989: 
frosch@8380: 				uint z_dest;
frosch@8380: 				Slope slope_dest = (Slope)(GetFoundationSlope(dest, &z_dest) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP);
frosch@8380: 				if (z_dest > 0) continue;
dominik@43: 
frosch@8380: 				if (!HasBit(_flood_from_dirs[slope_dest], ReverseDir(dir))) continue;
dominik@43: 
frosch@8380: 				DoFloodTile(dest);
frosch@8380: 			}
frosch@8380: 			break;
dominik@43: 
frosch@8380: 		case FLOOD_DRYUP: {
frosch@8380: 			Slope slope_here = (Slope)(GetFoundationSlope(tile, NULL) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP);
frosch@8380: 			uint check_dirs = _flood_from_dirs[slope_here];
frosch@8380: 			uint dir;
frosch@8380: 			FOR_EACH_SET_BIT(dir, check_dirs) {
frosch@8380: 				TileIndex dest = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDir((Direction)dir));
frosch@8380: 				if (dest == INVALID_TILE) continue;
frosch@8380: 
frosch@8380: 				FloodingBehaviour dest_behaviour = GetFloodingBehaviour(dest);
frosch@8380: 				if ((dest_behaviour == FLOOD_ACTIVE) || (dest_behaviour == FLOOD_PASSIVE)) return;
frosch@8380: 			}
frosch@8380: 			DoDryUp(tile);
frosch@8380: 			break;
frosch@8380: 		}
frosch@8380: 
frosch@8380: 		default: return;
tron@2639: 	}
frosch@8380: }
dominik@43: 
frosch@8380: void ConvertGroundTilesIntoWaterTiles()
frosch@8380: {
frosch@8380: 	TileIndex tile;
frosch@8380: 	uint z;
frosch@8380: 	Slope slope;
frosch@8380: 
frosch@8380: 	for (tile = 0; tile < MapSize(); ++tile) {
frosch@8380: 		slope = GetTileSlope(tile, &z);
frosch@8380: 		if (IsTileType(tile, MP_CLEAR) && z == 0) {
frosch@8380: 			/* Make both water for tiles at level 0
frosch@8380: 			 * and make shore, as that looks much better
frosch@8380: 			 * during the generation. */
frosch@8380: 			switch (slope) {
frosch@8380: 				case SLOPE_FLAT:
frosch@8380: 					MakeWater(tile);
frosch@8380: 					break;
frosch@8380: 
frosch@8380: 				case SLOPE_N:
frosch@8380: 				case SLOPE_E:
frosch@8380: 				case SLOPE_S:
frosch@8380: 				case SLOPE_W:
frosch@8380: 					MakeShore(tile);
frosch@8380: 					break;
frosch@8380: 
frosch@8380: 				default:
frosch@8380: 					uint check_dirs = _flood_from_dirs[slope & ~SLOPE_STEEP];
frosch@8380: 					uint dir;
frosch@8380: 					FOR_EACH_SET_BIT(dir, check_dirs) {
frosch@8380: 						TileIndex dest = TILE_ADD(tile, TileOffsByDir((Direction)dir));
frosch@8380: 						Slope slope_dest = (Slope)(GetTileSlope(dest, NULL) & ~SLOPE_STEEP);
frosch@8380: 						if (HasBit(_active_water_slopes, slope_dest)) {
frosch@8380: 							MakeShore(tile);
frosch@8380: 							break;
frosch@8380: 						}
frosch@8380: 					}
frosch@8380: 					break;
frosch@8380: 			}
frosch@8380: 		}
tron@2639: 	}
truelight@0: }
truelight@0: 
rubidium@6683: static uint32 GetTileTrackStatus_Water(TileIndex tile, TransportType mode, uint sub_mode)
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@6181: 		case WATER_TILE_CLEAR: ts = TRACK_BIT_ALL; break;
rubidium@6181: 		case WATER_TILE_COAST: ts = (TrackBits)coast_tracks[GetTileSlope(tile, NULL) & 0xF]; break;
rubidium@6181: 		case WATER_TILE_LOCK:  ts = AxisToTrackBits(DiagDirToAxis(GetLockDirection(tile))); break;
rubidium@6181: 		case WATER_TILE_DEPOT: ts = AxisToTrackBits(GetShipDepotAxis(tile)); break;
peter1138@8360: 		case WATER_TILE_RIVER: ts = (GetTileSlope(tile, NULL) == SLOPE_FLAT) ? TRACK_BIT_ALL : TRACK_BIT_NONE; break;
celestar@3423: 		default: return 0;
truelight@0: 	}
KUDr@3900: 	if (TileX(tile) == 0) {
belugas@6432: 		/* 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) {
belugas@6432: 		/* NW border: remove tracks that connects NW tile edge */
KUDr@3900: 		ts &= ~(TRACK_BIT_Y | TRACK_BIT_LEFT | TRACK_BIT_UPPER);
KUDr@3900: 	}
KUDr@3900: 	return ts * 0x101;
truelight@0: }
truelight@0: 
tron@1977: static void ClickTile_Water(TileIndex tile)
truelight@0: {
rubidium@6181: 	if (GetWaterTileType(tile) == WATER_TILE_DEPOT) {
celestar@3423: 		TileIndex tile2 = GetOtherShipDepotTile(tile);
truelight@193: 
rubidium@6259: 		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);
rubidium@7270: 	} else if (IsShipDepot(tile)) {
rubidium@7270: 		DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
truelight@0: 	} else {
rubidium@7270: 		SetTileOwner(tile, OWNER_NONE);
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@8119: static VehicleEnterTileStatus VehicleEnter_Water(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
rubidium@5991: 	return VETSB_CONTINUE;
truelight@0: }
truelight@0: 
rubidium@7494: static CommandCost TerraformTile_Water(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new)
rubidium@7494: {
rubidium@7494: 	/* Canals can't be terraformed */
rubidium@7739: 	if (IsWaterTile(tile) && IsCanal(tile)) return_cmd_error(STR_MUST_DEMOLISH_CANAL_FIRST);
rubidium@7494: 
rubidium@7494: 	return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
rubidium@7494: }
rubidium@7494: 
truelight@0: 
rubidium@5587: 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@7335: 	GetFoundation_Water,      /* get_foundation_proc */
rubidium@7494: 	TerraformTile_Water,      /* terraform_tile_proc */
truelight@0: };