water_cmd.c
changeset 0 29654efe3188
child 39 d177340ed556
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/water_cmd.c	Mon Aug 09 17:04:08 2004 +0000
@@ -0,0 +1,612 @@
+#include "stdafx.h"
+#include "ttd.h"
+#include "vehicle.h"
+#include "viewport.h"
+#include "command.h"
+#include "town.h"
+
+bool IsShipDepotTile(TileIndex tile)
+{
+	return IS_TILETYPE(tile, MP_WATER) &&	(_map5[tile]&~3) == 0x80;
+}
+
+bool IsClearWaterTile(uint tile)
+{
+	TileInfo ti;
+	FindLandscapeHeightByTile(&ti, tile);
+	return (ti.type == MP_WATER && ti.tileh == 0 && ti.map5 == 0);
+}
+
+/* Build a ship depot
+ * p1 - direction
+ */
+
+int32 CmdBuildShipDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+	uint tile, tile2;
+	
+	int32 cost, ret;
+	Depot *dep;
+
+	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
+
+	tile = TILE_FROM_XY(x,y);
+	if (!EnsureNoVehicle(tile))
+		return CMD_ERROR;
+
+	tile2 = tile + (p1 ? TILE_XY(0,1) : TILE_XY(1,0));
+	if (!EnsureNoVehicle(tile2))
+		return CMD_ERROR;
+
+	if (!IsClearWaterTile(tile) || !IsClearWaterTile(tile2))
+		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);
+
+	ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+	if (ret == CMD_ERROR) return CMD_ERROR;
+	ret = DoCommandByTile(tile2, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+	if (ret == CMD_ERROR)
+		return CMD_ERROR;
+	
+	// pretend that we're not making land from the water even though we actually are.
+	cost = 0;
+
+	dep = AllocateDepot();
+	if (dep == NULL)
+		return CMD_ERROR;
+
+	if (flags & DC_EXEC) {
+		dep->xy = tile;
+		_last_built_ship_depot_tile = tile;
+		dep->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
+
+		ModifyTile(tile, 
+			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,
+			(0x80 + p1*2)
+		);
+	
+		ModifyTile(tile2, 
+			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,
+			(0x81 + p1*2)
+		);
+	}
+
+	return cost + _price.build_ship_depot;
+}
+
+static int32 RemoveShipDepot(uint tile, uint32 flags)
+{
+	uint tile2;
+
+	if (!CheckTileOwnership(tile))
+		return CMD_ERROR;
+
+	if (!EnsureNoVehicle(tile))
+		return CMD_ERROR;
+
+	tile2 = tile + ((_map5[tile] & 2) ? TILE_XY(0,1) : TILE_XY(1,0));
+
+	if (!EnsureNoVehicle(tile2))
+		return CMD_ERROR;
+
+	if (flags & DC_EXEC) {
+		Depot *d;
+
+		// convert the cleared tiles to water
+		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);
+		ModifyTile(tile2, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);
+
+		// Kill the entry from the depot table
+		for(d=_depots; d->xy != tile; d++) {}
+		d->xy = 0;
+				
+		DeleteWindowById(WC_VEHICLE_DEPOT, tile);		
+	}
+
+	return _price.remove_ship_depot;
+}
+
+// build a shiplift
+static int32 DoBuildShiplift(uint tile, int dir, uint32 flags)
+{
+	int32 ret;
+	int delta;
+
+	// middle tile
+	ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+	if (ret == CMD_ERROR) return CMD_ERROR;
+	
+	delta = _tileoffs_by_dir[dir];
+	// lower tile
+	ret = DoCommandByTile(tile - delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+	if (ret == CMD_ERROR) return CMD_ERROR;
+	if (GetTileSlope(tile - delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
+
+	// upper tile
+	ret = DoCommandByTile(tile + delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+	if (ret == CMD_ERROR) return CMD_ERROR;
+	if (GetTileSlope(tile + delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
+
+	if (flags & DC_EXEC) {
+		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x10 + dir);
+		ModifyTile(tile - delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x14 + dir);
+		ModifyTile(tile + delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x18 + dir);
+	}
+
+	return _price.clear_water * 22 >> 3;
+}
+
+static int32 RemoveShiplift(uint tile, uint32 flags)
+{
+	int delta = _tileoffs_by_dir[_map5[tile] & 3];
+
+	// make sure no vehicle is on the tile.
+	if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(tile + delta) || !EnsureNoVehicle(tile - delta))
+		return CMD_ERROR;
+
+	if (flags & DC_EXEC) {
+		DoClearSquare(tile);
+		DoClearSquare(tile + delta);
+		DoClearSquare(tile - delta);
+	}
+	
+	return _price.clear_water * 2;
+}
+
+static void MarkTilesAroundDirty(uint tile)
+{
+	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, 1));
+	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, -1));
+	MarkTileDirtyByTile(TILE_ADDXY(tile, 1, 0));
+	MarkTileDirtyByTile(TILE_ADDXY(tile, -1, 0));
+}
+
+int32 CmdBuildLock(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+	uint tile = TILE_FROM_XY(x,y);
+	int32 ret;
+	uint th;
+	th = GetTileSlope(tile, NULL); 
+
+	if (th==3 || th==6 || th==9 || th==12) {
+		static const byte _shiplift_dirs[16] = {0,0,0,2,0,0,1,0,0,3,0,0,0};
+		ret = DoBuildShiplift(tile, _shiplift_dirs[th], flags);
+		return ret;
+		}
+	else
+		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
+
+	return 0;
+}
+
+int32 CmdBuildCanal(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+	uint tile = TILE_FROM_XY(x,y);
+	int32 ret;
+	uint th;
+	uint endtile = (uint)p1;
+	int delta;
+	int32 cost;
+	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
+
+	// move in which direction?
+	delta = (GET_TILE_X(tile) == GET_TILE_X(endtile)) ? TILE_XY(0,1) : TILE_XY(1,0);
+	if (endtile < tile) delta = -delta;
+	
+	cost = 0;
+	for(;;) {
+		ret = 0;
+		th = GetTileSlope(tile, NULL);
+		if(th!=0)
+			return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
+
+			// can't make water of water!
+			if (IS_TILETYPE(tile, MP_WATER)) {
+				_error_message = STR_1007_ALREADY_BUILT;
+			} else {
+
+				/* is middle piece of a bridge? */
+				if (IS_TILETYPE(tile, MP_TUNNELBRIDGE) && _map5[tile] & 0x40) { /* build under bridge */
+					if(_map5[tile] & 0x20) { // transport route under bridge
+						_error_message = STR_5800_OBJECT_IN_THE_WAY;
+						ret = CMD_ERROR;
+					}
+					else if (_map5[tile] & 0x18) { // already water under bridge
+						_error_message = STR_1007_ALREADY_BUILT;
+						ret = CMD_ERROR;
+					}
+
+				/* no bridge? then try to clear it. */
+				} else  {
+					ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+				}
+				if (ret == CMD_ERROR) return ret;
+				cost += ret;
+
+				/* execute modifications */
+				if (flags & DC_EXEC) {
+					if(IS_TILETYPE(tile, MP_TUNNELBRIDGE)) {
+						// change owner to OWNER_WATER and set land under bridge bit to water
+						ModifyTile(tile, MP_MAP5 | MP_MAPOWNER, OWNER_WATER, _map5[tile] | 0x08);
+					} else {
+						ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);
+					}
+					// mark the tiles around dirty too
+					MarkTilesAroundDirty(tile);
+				}
+
+				cost += _price.clear_water;
+			}
+		if (tile == endtile)
+			break;
+		tile += delta;
+	}
+	if (cost == 0) return CMD_ERROR;
+
+	return cost;
+}
+
+static int32 ClearTile_Water(uint tile, byte flags) {
+	byte m5 = _map5[tile];
+	uint slope;
+
+	if (m5 <= 1) { // water and shore
+		// Allow building on water? It's ok to build on shores.
+		if (flags & DC_NO_WATER && m5 != 1)
+			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
+
+		// Make sure no vehicle is on the tile
+		if (!EnsureNoVehicle(tile))
+			return CMD_ERROR;
+
+		// Make sure it's not an edge tile.
+		if (!(IS_INT_INSIDE(GET_TILE_X(tile),1,TILE_X_MAX-1) &&
+				IS_INT_INSIDE(GET_TILE_Y(tile),1,TILE_Y_MAX-1)))
+			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);
+
+		if (m5 == 0) {
+			if (flags & DC_EXEC)
+				DoClearSquare(tile);
+			return _price.clear_water;
+		} else if (m5 == 1) {
+			slope = GetTileSlope(tile,NULL);
+			if (slope == 8 || slope == 4 || slope == 2 || slope == 1) {
+				if (flags & DC_EXEC)
+					DoClearSquare(tile);
+				return _price.clear_water;
+			}
+			if (flags & DC_EXEC)			
+				DoClearSquare(tile);
+			return _price.purchase_land;
+		} else
+			return CMD_ERROR;
+	} else if ((m5 & 0x10) == 0x10) {
+		// shiplift
+
+		static const TileIndexDiff _shiplift_tomiddle_offs[12] = {
+			0,0,0,0, // middle
+			TILE_XY(-1, 0),TILE_XY(0, 1),TILE_XY(1, 0),TILE_XY(0, -1), // lower
+			TILE_XY(1, 0),TILE_XY(0, -1),TILE_XY(-1, 0),TILE_XY(0, 1), // upper
+		};
+				
+		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
+		// don't allow water to delete it.
+		if (_current_player == OWNER_WATER) return CMD_ERROR;
+		// move to the middle tile..
+		return RemoveShiplift(tile + _shiplift_tomiddle_offs[m5 & 0xF], flags);
+	} else {
+		// ship depot
+		if (flags & DC_AUTO)
+			return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
+
+		if (m5 == 0x80 || m5 == 0x82) {}
+		else if (m5 == 0x81) { tile -= TILE_XY(1,0); }
+		else if (m5 == 0x83) { tile -= TILE_XY(0,1); }
+		else
+			return CMD_ERROR;
+
+		return RemoveShipDepot(tile,flags);
+	}
+}
+
+// return true if a tile is a water tile.
+static bool IsWateredTile(uint tile)
+{
+	byte m5 = _map5[tile];
+	if (IS_TILETYPE(tile, MP_WATER)) {
+		return m5 != 1;	
+	} else if (IS_TILETYPE(tile, MP_STATION)) {
+		// returns true if it is a dock-station (m5 inside values is m5<75 all stations, 
+		// 83<=m5<=114 new airports
+		return !(m5 < 75 || (m5 >= 83 && m5 <= 114));
+	} else if (IS_TILETYPE(tile, MP_TUNNELBRIDGE)) {
+		return (m5 & 0xF8) == 0xC8;
+	} else
+		return false;
+}
+
+// draw a canal styled water tile with dikes around
+void DrawCanalWater(uint tile)
+{
+	uint wa;
+	
+	// determine the edges around with water.
+	wa = IsWateredTile(TILE_ADDXY(tile, -1, 0)) << 0;
+	wa += IsWateredTile(TILE_ADDXY(tile, 0, 1)) << 1;
+	wa += IsWateredTile(TILE_ADDXY(tile, 1, 0)) << 2;
+	wa += IsWateredTile(TILE_ADDXY(tile, 0, -1)) << 3;
+	
+	if (!(wa & 1)) DrawGroundSprite(SPR_CANALS_BASE + 57);
+	if (!(wa & 2)) DrawGroundSprite(SPR_CANALS_BASE + 58);
+	if (!(wa & 4)) DrawGroundSprite(SPR_CANALS_BASE + 59);
+	if (!(wa & 8)) DrawGroundSprite(SPR_CANALS_BASE + 60);
+
+	// right corner
+	if ((wa & 3) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 4);
+	else if ((wa & 3) == 3 && !IsWateredTile(TILE_ADDXY(tile, -1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 8);
+
+	// bottom corner
+	if ((wa & 6) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 5);
+	else if ((wa & 6) == 6 && !IsWateredTile(TILE_ADDXY(tile, 1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 9);
+
+	// left corner
+	if ((wa & 12) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 6);
+	else if ((wa & 12) == 12 && !IsWateredTile(TILE_ADDXY(tile, 1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 10);
+
+	// upper corner
+	if ((wa & 9) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 7);
+	else if ((wa & 9) == 9 && !IsWateredTile(TILE_ADDXY(tile, -1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 11);
+}
+
+typedef struct WaterDrawTileStruct {
+	int8 delta_x;
+	int8 delta_y;
+	int8 delta_z;
+	byte width;
+	byte height;
+	byte unk;
+	SpriteID image;
+} WaterDrawTileStruct;
+
+typedef struct LocksDrawTileStruct {
+	int8 delta_x, delta_y, delta_z;
+	byte width, height, depth;
+	SpriteID image;
+} LocksDrawTileStruct;
+
+#include "table/water_land.h"
+
+static void DrawWaterStuff(TileInfo *ti, const byte *t, uint32 palette, uint base)
+{
+	const WaterDrawTileStruct *wdts;
+	uint32 image;
+
+	DrawGroundSprite(*(uint16*)t);	
+	t += sizeof(uint16);
+		
+	for(wdts = (WaterDrawTileStruct *)t; (byte)wdts->delta_x != 0x80; wdts++) {
+		image =	wdts->image + base;
+		if (_display_opt & DO_TRANS_BUILDINGS) {
+			image |= palette;
+		} else {
+			image = (image & 0x3FFF) | 0x03224000;
+		}
+		AddSortableSpriteToDraw(image, ti->x + wdts->delta_x, ti->y + wdts->delta_y, wdts->width, wdts->height, wdts->unk, ti->z + wdts->delta_z);
+	}
+}
+
+static void DrawTile_Water(TileInfo *ti)
+{
+	// draw water tile
+	if (ti->map5 == 0) {
+		DrawGroundSprite(0xFDD);
+		if (ti->z != 0) DrawCanalWater(ti->tile);
+		return;
+	}
+
+	// draw shore
+	if (ti->map5 == 1) {
+		assert(ti->tileh < 16);
+		DrawGroundSprite(_water_shore_sprites[ti->tileh]);
+		return;
+	}
+
+	// draw shiplift
+	if ((ti->map5 & 0xF0) == 0x10) {
+		const byte *t = _shiplift_display_seq[ti->map5 & 0xF];
+		DrawWaterStuff(ti, t, 0, ti->z > t[19] ? 24 : 0);
+		return;
+	}
+
+	DrawWaterStuff(ti, _shipdepot_display_seq[ti->map5 & 0x7F], PLAYER_SPRITE_COLOR(_map_owner[ti->tile]), 0);
+}
+
+void DrawShipDepotSprite(int x, int y, int image)
+{
+	const byte *t;
+	const WaterDrawTileStruct *wdts;
+
+	t = _shipdepot_display_seq[image];
+	DrawSprite(*(uint16*)t, x, y);
+	t += sizeof(uint16);
+		
+	for(wdts = (WaterDrawTileStruct *)t; (byte)wdts->delta_x != 0x80; wdts++) {
+		Point pt = RemapCoords(wdts->delta_x, wdts->delta_y, wdts->delta_z);
+		DrawSprite(wdts->image + PLAYER_SPRITE_COLOR(_local_player), x + pt.x, y + pt.y);
+	}
+}
+
+
+uint GetSlopeZ_Water(TileInfo *ti)
+{ 
+	return GetPartialZ(ti->x&0xF, ti->y&0xF, ti->tileh) + ti->z;
+}
+
+static void GetAcceptedCargo_Water(uint tile, AcceptedCargo *ac)
+{
+	/* not used */
+}
+
+static void GetTileDesc_Water(uint tile, TileDesc *td)
+{
+	if (_map5[tile] == 0 && GET_TILEHEIGHT(tile) == 0)
+		td->str = STR_3804_WATER;
+	else if (_map5[tile] == 0)
+		td->str = STR_LANDINFO_CANAL;
+	else if (_map5[tile] == 1)
+		td->str = STR_3805_COAST_OR_RIVERBANK;
+	else if ((_map5[tile]&0xF0) == 0x10)
+		td->str = STR_LANDINFO_LOCK;
+	else
+		td->str = STR_3806_SHIP_DEPOT;
+
+	td->owner = _map_owner[tile];
+}
+
+static void AnimateTile_Water(uint tile)
+{
+	/* not used */
+}
+
+static void TileLoopWaterHelper(uint tile, const int16 *offs)
+{
+	byte *p;
+
+	p = &_map_type_and_height[tile];
+	tile += offs[0];
+
+	// type of this tile mustn't be water already.
+	if (p[offs[0]] >> 4 == MP_WATER)
+		return;
+
+	if ( (p[offs[1]] | p[offs[2]]) & 0xF )
+		return;
+
+	if ( (p[offs[3]] | p[offs[4]]) & 0xF ) {
+		// make coast..
+		if (p[offs[0]] >> 4 == MP_CLEAR || p[offs[0]] >> 4 == MP_TREES) {
+			_current_player = OWNER_WATER;
+			if (DoCommandByTile(tile,0,0,DC_EXEC | DC_AUTO, CMD_LANDSCAPE_CLEAR) != CMD_ERROR)
+				ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,OWNER_WATER,1);
+		}
+	} else {
+		if (IS_TILETYPE(tile, MP_TUNNELBRIDGE)) {
+			byte m5 = _map5[tile];
+			if ( (m5&0xF8) == 0xC8 || (m5&0xF8) == 0xF0)
+				return;
+
+			if ( (m5&0xC0) == 0xC0) {
+				ModifyTile(tile, MP_MAPOWNER | MP_MAP5,OWNER_WATER,(m5 & ~0x38)|0x8);
+				return;
+			}
+		}
+
+		_current_player = OWNER_WATER;
+		if (DoCommandByTile(tile,0,0,DC_EXEC, CMD_LANDSCAPE_CLEAR) != CMD_ERROR)
+			ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,OWNER_WATER,0);
+	}
+}
+
+// called from tunnelbridge_cmd
+void TileLoop_Water(uint tile)
+{
+	int i;
+	static const TileIndexDiff _tile_loop_offs_array[4][5] = {
+		// tile to mod																shore?				shore?
+		{TILE_XY(-1,0), TILE_XY(0,0), TILE_XY(0,1), TILE_XY(-1,0), TILE_XY(-1,1)},
+		{TILE_XY(0,1),  TILE_XY(0,1), TILE_XY(1,1), TILE_XY(0,2),  TILE_XY(1,2)},
+		{TILE_XY(1,0),  TILE_XY(1,0), TILE_XY(1,1), TILE_XY(2,0),  TILE_XY(2,1)},
+		{TILE_XY(0,-1), TILE_XY(0,0), TILE_XY(1,0), TILE_XY(0,-1), TILE_XY(1,-1)},
+	};
+
+	if ( IS_INT_INSIDE(GET_TILE_X(tile),1,TILES_X-3+1) &&
+	     IS_INT_INSIDE(GET_TILE_Y(tile),1,TILES_Y-3+1)) {
+		for(i=0; i!=4; i++)
+			TileLoopWaterHelper(tile, _tile_loop_offs_array[i]);
+	}
+}
+
+
+static const byte _coast_tracks[16] = {0, 32, 4, 0, 16, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0};
+static const byte _shipdepot_tracks[4] = {1,1,2,2};
+static const byte _shiplift_tracks[12] = {1,2,1,2,1,2,1,2,1,2,1,2};
+static uint32 GetTileTrackStatus_Water(uint tile, int mode)
+{
+	uint m5;
+	uint b;
+
+	if (mode != 4)
+		return 0;
+
+	m5 = _map5[tile];
+	if (m5 == 0)
+		return 0x3F3F;
+
+	if (m5 == 1) {
+		b = _coast_tracks[GetTileSlope(tile, NULL)&0xF];
+		return b + (b<<8);
+	}
+
+	if ( (m5 & 0x10) == 0x10) {
+		// 
+		b = _shiplift_tracks[m5 & 0xF];
+		return b + (b<<8);
+	}
+
+	if (!(m5 & 0x80))
+		return 0;
+
+	b = _shipdepot_tracks[m5 & 0x7F];
+	return b + (b<<8);
+}
+
+extern void ShowShipDepotWindow(uint tile);
+
+static void ClickTile_Water(uint tile)
+{
+	byte m5 = _map5[tile] - 0x80;
+	
+	if (IS_BYTE_INSIDE(m5, 0, 3+1)) {
+		if (m5 & 1)
+			tile += (m5==1) ? TILE_XY(-1,0) : TILE_XY(0,-1);
+		ShowShipDepotWindow(tile);
+	}
+}
+
+static void ChangeTileOwner_Water(uint tile, byte old_player, byte new_player)
+{
+	if (_map_owner[tile] != old_player)
+		return;
+
+	if (new_player != 255) {
+		_map_owner[tile] = new_player;
+	} else {
+		DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
+	}
+}
+
+static uint32 VehicleEnter_Water(Vehicle *v, uint tile, int x, int y)
+{
+	return 0;
+}
+
+void InitializeDock()
+{
+	_last_built_ship_depot_tile = 0;
+}
+
+const TileTypeProcs _tile_type_water_procs = {
+	DrawTile_Water,						/* draw_tile_proc */
+	GetSlopeZ_Water,					/* get_slope_z_proc */
+	ClearTile_Water,					/* clear_tile_proc */
+	GetAcceptedCargo_Water,		/* get_accepted_cargo_proc */
+	GetTileDesc_Water,				/* get_tile_desc_proc */
+	GetTileTrackStatus_Water,	/* get_tile_track_status_proc */
+	ClickTile_Water,					/* click_tile_proc */
+	AnimateTile_Water,				/* animate_tile_proc */
+	TileLoop_Water,						/* tile_loop_clear */
+	ChangeTileOwner_Water,		/* change_tile_owner_clear */
+	NULL,											/* get_produced_cargo_proc */
+	VehicleEnter_Water,				/* vehicle_enter_tile_proc */
+	NULL,											/* vehicle_leave_tile_proc */
+};
+