tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@3189: #include "bridge_map.h"
tron@3101: #include "rail_map.h"
tron@3144: #include "road_map.h"
hackykid@2008: #include "table/sprites.h"
tron@507: #include "table/strings.h"
tron@2163: #include "functions.h"
tron@679: #include "map.h"
tron@1209: #include "tile.h"
tron@3319: #include "town_map.h"
truelight@0: #include "vehicle.h"
truelight@0: #include "viewport.h"
truelight@0: #include "command.h"
truelight@0: #include "player.h"
truelight@0: #include "town.h"
truelight@0: #include "gfx.h"
tron@337: #include "sound.h"
truelight@1313: #include "depot.h"
truelight@0: 
truelight@0: void RoadVehEnterDepot(Vehicle *v);
truelight@0: 
truelight@0: 
tron@3381: static uint CountRoadBits(RoadBits r)
tron@3381: {
tron@3381: 	uint count = 0;
tron@3381: 
tron@3381: 	if (r & ROAD_NW) ++count;
tron@3381: 	if (r & ROAD_SW) ++count;
tron@3381: 	if (r & ROAD_SE) ++count;
tron@3381: 	if (r & ROAD_NE) ++count;
tron@3381: 	return count;
tron@3381: }
tron@3381: 
tron@3381: 
tron@3149: static bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, bool* edge_road)
truelight@0: {
tron@3149: 	RoadBits present;
tron@3149: 	RoadBits n;
truelight@0: 	byte owner;
truelight@0: 	*edge_road = true;
truelight@0: 
tron@3017: 	if (_game_mode == GM_EDITOR) return true;
truelight@0: 
truelight@0: 	// Only do the special processing for actual players.
tron@3017: 	if (_current_player >= MAX_PLAYERS) return true;
truelight@0: 
Darkvater@1927: 	if (IsTileType(tile, MP_STREET) && IsLevelCrossing(tile)) {
tron@3274: 		owner = GetCrossingRoadOwner(tile);
truelight@0: 	} else {
tron@1901: 		owner = GetTileOwner(tile);
truelight@0: 	}
truelight@0: 	// Only do the special processing if the road is owned
truelight@0: 	// by a town
truelight@0: 	if (owner != OWNER_TOWN) {
truelight@0: 		return owner == OWNER_NONE || CheckOwnership(owner);
truelight@0: 	}
truelight@0: 
tron@3017: 	if (_cheats.magic_bulldozer.value) return true;
truelight@0: 
truelight@0: 	// Get a bitmask of which neighbouring roads has a tile
truelight@0: 	n = 0;
tron@3149: 	present = GetAnyRoadBits(tile);
tron@3149: 	if (present & ROAD_NE && GetAnyRoadBits(TILE_ADDXY(tile,-1, 0)) & ROAD_SW) n |= ROAD_NE;
tron@3149: 	if (present & ROAD_SE && GetAnyRoadBits(TILE_ADDXY(tile, 0, 1)) & ROAD_NW) n |= ROAD_SE;
tron@3149: 	if (present & ROAD_SW && GetAnyRoadBits(TILE_ADDXY(tile, 1, 0)) & ROAD_NE) n |= ROAD_SW;
tron@3149: 	if (present & ROAD_NW && GetAnyRoadBits(TILE_ADDXY(tile, 0,-1)) & ROAD_SE) n |= ROAD_NW;
truelight@201: 
truelight@0: 	// If 0 or 1 bits are set in n, or if no bits that match the bits to remove,
truelight@0: 	// then allow it
tron@3149: 	if ((n & (n - 1)) != 0 && (n & remove) != 0) {
truelight@0: 		Town *t;
truelight@0: 		*edge_road = false;
truelight@0: 		// you can remove all kind of roads with extra dynamite
tron@3017: 		if (_patches.extra_dynamite) return true;
truelight@0: 
Darkvater@1638: 		t = ClosestTownFromTile(tile, _patches.dist_local_authority);
Darkvater@1638: 
tron@534: 		SetDParam(0, t->index);
truelight@0: 		_error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	return true;
truelight@0: }
truelight@0: 
truelight@0: 
Darkvater@1784: /** Delete a piece of road.
Darkvater@1784:  * @param x,y tile coordinates for road construction
Darkvater@1784:  * @param p1 road piece flags
Darkvater@1784:  * @param p2 unused
truelight@0:  */
truelight@0: int32 CmdRemoveRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
Darkvater@1638: 	// cost for removing inner/edge -roads
Darkvater@1638: 	static const uint16 road_remove_cost[2] = {50, 18};
Darkvater@1638: 
Darkvater@1638: 	TileIndex tile;
Darkvater@2074: 	PlayerID owner;
truelight@0: 	Town *t;
Darkvater@1784: 	/* true if the roadpiece was always removeable,
Darkvater@1784: 	 * false if it was a center piece. Affects town ratings drop */
truelight@0: 	bool edge_road;
tron@3069: 	RoadBits pieces;
truelight@201: 
truelight@0: 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
truelight@0: 
Darkvater@1784: 	/* Road pieces are max 4 bitset values (NE, NW, SE, SW) */
tron@3069: 	if (p1 >> 4) return CMD_ERROR;
tron@3069: 	pieces = p1;
Darkvater@1784: 
tron@3277: 	tile = TileVirtXY(x, y);
Darkvater@1638: 
Darkvater@2074: 	if (!IsTileType(tile, MP_STREET) && !IsTileType(tile, MP_TUNNELBRIDGE)) return CMD_ERROR;
Darkvater@2074: 
tron@3274: 	owner = IsLevelCrossing(tile) ? GetCrossingRoadOwner(tile) : GetTileOwner(tile);
Darkvater@1638: 
Darkvater@1638: 	if (owner == OWNER_TOWN && _game_mode != GM_EDITOR) {
Darkvater@1638: 		if (IsTileType(tile, MP_TUNNELBRIDGE)) { // index of town is not saved for bridge (no space)
Darkvater@1638: 			t = ClosestTownFromTile(tile, _patches.dist_local_authority);
tron@3017: 		} else {
tron@3319: 			t = GetTownByTile(tile);
tron@3017: 		}
tron@3017: 	} else {
truelight@1280: 		t = NULL;
tron@3017: 	}
truelight@201: 
tron@3149: 	if (!CheckAllowRemoveRoad(tile, pieces, &edge_road)) return CMD_ERROR;
truelight@0: 
tron@3277: 	switch (GetTileType(tile)) {
tron@3060: 		case MP_TUNNELBRIDGE:
tron@3060: 			if (!EnsureNoVehicleZ(tile, TilePixelHeight(tile))) return CMD_ERROR;
truelight@0: 
tron@3234: 			if (!IsBridge(tile) ||
tron@3234: 					!IsBridgeMiddle(tile) ||
tron@3234: 					!IsTransportUnderBridge(tile) ||
tron@3234: 					GetTransportTypeUnderBridge(tile) != TRANSPORT_ROAD ||
tron@3234: 					(pieces & ComplementRoadBits(GetRoadBitsUnderBridge(tile))) != 0) {
tron@3176: 				return CMD_ERROR;
truelight@0: 			}
truelight@0: 
truelight@0: 			if (flags & DC_EXEC) {
Darkvater@1638: 				ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
tron@3189: 				SetClearUnderBridge(tile);
tron@3060: 				MarkTileDirtyByTile(tile);
truelight@0: 			}
tron@3381: 			return _price.remove_road * 2;
truelight@0: 
tron@3060: 		case MP_STREET:
tron@3277: 			if (!EnsureNoVehicle(tile)) return CMD_ERROR;
tron@3277: 
tron@3060: 			// check if you're allowed to remove the street owned by a town
tron@3060: 			// removal allowance depends on difficulty setting
tron@3060: 			if (!CheckforTownRating(flags, t, ROAD_REMOVE)) return CMD_ERROR;
tron@3060: 
tron@3277: 			switch (GetRoadType(tile)) {
tron@3069: 				case ROAD_NORMAL: {
tron@3277: 					RoadBits present = GetRoadBits(tile);
tron@3150: 					RoadBits c = pieces;
tron@3060: 
tron@3277: 					if (GetTileSlope(tile, NULL) != 0  &&
tron@3277: 							(present == ROAD_Y || present == ROAD_X)) {
tron@3060: 						c |= (c & 0xC) >> 2;
tron@3060: 						c |= (c & 0x3) << 2;
tron@3060: 					}
tron@3060: 
tron@3060: 					// limit the bits to delete to the existing bits.
tron@3150: 					c &= present;
tron@3176: 					if (c == 0) return CMD_ERROR;
tron@3060: 
tron@3060: 					if (flags & DC_EXEC) {
tron@3060: 						ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
tron@3060: 
tron@3150: 						present ^= c;
tron@3150: 						if (present == 0) {
tron@3060: 							DoClearSquare(tile);
tron@3060: 						} else {
tron@3150: 							SetRoadBits(tile, present);
tron@3060: 							MarkTileDirtyByTile(tile);
tron@3060: 						}
tron@3060: 					}
tron@3381: 					return CountRoadBits(c) * _price.remove_road;
tron@3060: 				}
tron@3060: 
tron@3069: 				case ROAD_CROSSING: {
tron@3103: 					if (pieces & ComplementRoadBits(GetCrossingRoadBits(tile))) {
tron@3176: 						return CMD_ERROR;
tron@3060: 					}
tron@3060: 
tron@3060: 					if (flags & DC_EXEC) {
tron@3060: 						ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
tron@3060: 
tron@3242: 						MakeRailNormal(tile, GetTileOwner(tile), GetCrossingRailBits(tile), GetRailTypeCrossing(tile));
tron@3101: 						MarkTileDirtyByTile(tile);
tron@3060: 					}
tron@3381: 					return _price.remove_road * 2;
tron@3060: 				}
tron@3060: 
tron@3069: 				default:
tron@3069: 				case ROAD_DEPOT:
tron@3176: 					return CMD_ERROR;
truelight@0: 			}
truelight@0: 
tron@3176: 		default: return CMD_ERROR;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
tron@3104: static const RoadBits _valid_tileh_slopes_road[][15] = {
truelight@0: 	// set of normal ones
truelight@0: 	{
truelight@0: 		ROAD_ALL, 0, 0,
tron@3098: 		ROAD_X,   0, 0,  // 3, 4, 5
tron@3098: 		ROAD_Y,   0, 0,
tron@3098: 		ROAD_Y,   0, 0,  // 9, 10, 11
tron@3098: 		ROAD_X,   0, 0
truelight@201: 	},
truelight@0: 	// allowed road for an evenly raised platform
truelight@201: 	{
truelight@0: 		0,
truelight@0: 		ROAD_SW | ROAD_NW,
truelight@0: 		ROAD_SW | ROAD_SE,
tron@3098: 		ROAD_Y  | ROAD_SW,
truelight@0: 
truelight@0: 		ROAD_SE | ROAD_NE, // 4
truelight@0: 		ROAD_ALL,
tron@3098: 		ROAD_X  | ROAD_SE,
truelight@0: 		ROAD_ALL,
truelight@0: 
truelight@0: 		ROAD_NW | ROAD_NE, // 8
tron@3098: 		ROAD_X  | ROAD_NW,
truelight@0: 		ROAD_ALL,
truelight@0: 		ROAD_ALL,
truelight@0: 
tron@3098: 		ROAD_Y  | ROAD_NE, // 12
truelight@0: 		ROAD_ALL,
truelight@0: 		ROAD_ALL
dominik@13: 	},
truelight@0: };
truelight@0: 
truelight@0: 
tron@3150: static uint32 CheckRoadSlope(int tileh, RoadBits* pieces, RoadBits existing)
truelight@0: {
tron@3381: 	RoadBits road_bits;
truelight@201: 
tron@3381: 	if (IsSteepTileh(tileh)) return CMD_ERROR;
tron@3381: 	road_bits = *pieces | existing;
truelight@0: 
tron@3381: 	// no special foundation
tron@3381: 	if ((~_valid_tileh_slopes_road[0][tileh] & road_bits) == 0) {
tron@3381: 		// force that all bits are set when we have slopes
tron@3381: 		if (tileh != 0) *pieces |= _valid_tileh_slopes_road[0][tileh];
tron@3381: 		return 0; // no extra cost
tron@3381: 	}
tron@3381: 
tron@3381: 	// foundation is used. Whole tile is leveled up
tron@3381: 	if ((~_valid_tileh_slopes_road[1][tileh] & road_bits) == 0) {
tron@3381: 		return existing ? 0 : _price.terraform;
tron@3381: 	}
tron@3381: 
tron@3381: 	// partly leveled up tile, only if there's no road on that tile
tron@3381: 	if (existing == 0 && (tileh == 1 || tileh == 2 || tileh == 4 || tileh == 8)) {
tron@3381: 		// force full pieces.
tron@3381: 		*pieces |= (*pieces & 0xC) >> 2;
tron@3381: 		*pieces |= (*pieces & 0x3) << 2;
tron@3381: 		if (*pieces == ROAD_X || *pieces == ROAD_Y) return _price.terraform;
truelight@0: 	}
truelight@0: 	return CMD_ERROR;
truelight@0: }
truelight@0: 
Darkvater@1784: /** Build a piece of road.
Darkvater@1784:  * @param x,y tile coordinates for road construction
Darkvater@1784:  * @param p1 road piece flags
Darkvater@1784:  * @param p2 the town that is building the road (0 if not applicable)
truelight@0:  */
truelight@0: int32 CmdBuildRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3381: 	int32 cost = 0;
tron@3381: 	int32 ret;
tron@3150: 	RoadBits existing = 0;
tron@3150: 	RoadBits pieces;
Darkvater@1784: 	TileIndex tile;
celestar@3434: 	byte tileh;
truelight@201: 
truelight@0: 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
truelight@0: 
Darkvater@1784: 	/* Road pieces are max 4 bitset values (NE, NW, SE, SW) and town can only be non-zero
Darkvater@1784: 	 * if a non-player is building the road */
tron@3150: 	if ((p1 >> 4) || (_current_player < MAX_PLAYERS && p2 != 0) || !IsTownIndex(p2)) return CMD_ERROR;
tron@3150: 	pieces = p1;
Darkvater@1784: 
celestar@3434: 	tile = TileVirtXY(x, y);
celestar@3434: 	tileh = GetTileSlope(tile, NULL);
truelight@0: 
celestar@3434: 	switch (GetTileType(tile)) {
tron@3060: 		case MP_STREET:
tron@3150: 			switch (GetRoadType(tile)) {
tron@3069: 				case ROAD_NORMAL:
tron@3150: 					existing = GetRoadBits(tile);
tron@3150: 					if ((existing & pieces) == pieces) {
tron@3066: 						return_cmd_error(STR_1007_ALREADY_BUILT);
tron@3066: 					}
tron@3381: 					if (!EnsureNoVehicle(tile)) return CMD_ERROR;
tron@3066: 					break;
tron@3066: 
tron@3069: 				case ROAD_CROSSING:
tron@3150: 					if (pieces != GetCrossingRoadBits(tile)) { // XXX is this correct?
tron@3066: 						return_cmd_error(STR_1007_ALREADY_BUILT);
tron@3066: 					}
tron@3066: 					goto do_clear;
tron@3066: 
tron@3069: 				default:
tron@3069: 				case ROAD_DEPOT:
tron@3066: 					goto do_clear;
tron@3060: 			}
tron@3060: 			break;
truelight@0: 
tron@3060: 		case MP_RAILWAY: {
tron@3099: 			Axis roaddir;
dominik@13: 
celestar@3434: 			if (IsSteepTileh(tileh)) { // very steep tile
tron@3060: 				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3060: 			}
tron@3060: 
tron@3104: #define M(x) (1 << (x))
tron@3104: 			/* Level crossings may only be built on these slopes */
celestar@3434: 			if (!HASBIT(M(14) | M(13) | M(11) | M(10) | M(7) | M(5) | M(0), tileh)) {
tron@3060: 				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3060: 			}
tron@3104: #undef M
tron@3060: 
tron@3269: 			if (GetRailTileType(tile) != RAIL_TYPE_NORMAL) goto do_clear;
tron@3269: 			switch (GetTrackBits(tile)) {
tron@3269: 				case TRACK_BIT_X:
tron@3269: 					if (pieces & ROAD_X) goto do_clear;
tron@3269: 					roaddir = AXIS_Y;
tron@3269: 					break;
tron@3269: 
tron@3269: 				case TRACK_BIT_Y:
tron@3269: 					if (pieces & ROAD_Y) goto do_clear;
tron@3269: 					roaddir = AXIS_X;
tron@3269: 					break;
tron@3269: 
tron@3269: 				default: goto do_clear;
tron@3060: 			}
tron@3060: 
tron@3381: 			if (!EnsureNoVehicle(tile)) return CMD_ERROR;
tron@3381: 
tron@3060: 			if (flags & DC_EXEC) {
tron@3242: 				MakeRoadCrossing(tile, _current_player, GetTileOwner(tile), roaddir, GetRailType(tile), p2);
tron@3100: 				MarkTileDirtyByTile(tile);
tron@3060: 			}
tron@3060: 			return _price.build_road * 2;
tron@3017: 		}
truelight@0: 
tron@3060: 		case MP_TUNNELBRIDGE:
tron@3060: 			/* check for flat land */
celestar@3434: 			if (IsSteepTileh(tileh)) { // very steep tile
tron@3060: 				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3060: 			}
truelight@0: 
tron@3234: 			if (!IsBridge(tile) || !IsBridgeMiddle(tile)) goto do_clear;
truelight@0: 
tron@3060: 			/* only allow roads pertendicular to bridge */
tron@3234: 			if ((pieces & (GetBridgeAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y)) != 0) {
tron@3234: 				goto do_clear;
tron@3234: 			}
tron@3060: 
tron@3060: 			/* check if clear land under bridge */
tron@3234: 			if (IsTransportUnderBridge(tile)) {
tron@3234: 				switch (GetTransportTypeUnderBridge(tile)) {
tron@3234: 					case TRANSPORT_ROAD: return_cmd_error(STR_1007_ALREADY_BUILT);
tron@3234: 					default: return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
tron@3234: 				}
tron@3234: 			} else {
tron@3234: 				if (IsWaterUnderBridge(tile)) {
tron@3234: 					return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
tron@3234: 				}
tron@3060: 			}
tron@3060: 
tron@3060: 			if (flags & DC_EXEC) {
tron@3189: 				SetRoadUnderBridge(tile, _current_player);
tron@3189: 				MarkTileDirtyByTile(tile);
tron@3060: 			}
tron@3381: 			return _price.build_road * 2;
tron@3060: 
tron@3060: 		default:
truelight@0: do_clear:;
tron@3381: 			ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@3381: 			if (CmdFailed(ret)) return ret;
tron@3381: 			cost += ret;
truelight@0: 	}
truelight@0: 
celestar@3434: 	ret = CheckRoadSlope(tileh, &pieces, existing);
tron@3381: 	if (CmdFailed(ret)) return_cmd_error(STR_1800_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3381: 	if (ret != 0 && (!_patches.build_on_slopes || _is_old_ai_player)) {
tron@3381: 		return CMD_ERROR;
tron@3381: 	}
tron@3381: 	cost += ret;
truelight@0: 
celestar@3434: 	if (IsTileType(tile, MP_STREET)) {
tron@3150: 		// Don't put the pieces that already exist
tron@3150: 		pieces &= ComplementRoadBits(existing);
truelight@0: 	}
truelight@0: 
tron@3381: 	cost += CountRoadBits(pieces) * _price.build_road;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC) {
celestar@3434: 		if (IsTileType(tile, MP_STREET)) {
tron@3150: 			SetRoadBits(tile, existing | pieces);
tron@3150: 		} else {
tron@3099: 			MakeRoadNormal(tile, _current_player, pieces, p2);
truelight@0: 		}
truelight@0: 
truelight@0: 		MarkTileDirtyByTile(tile);
truelight@0: 	}
truelight@0: 	return cost;
truelight@0: }
truelight@0: 
Darkvater@3435: int32 DoConvertStreetRail(TileIndex tile, RailType totype, bool exec)
truelight@0: {
truelight@0: 	// not a railroad crossing?
Darkvater@1927: 	if (!IsLevelCrossing(tile)) return CMD_ERROR;
truelight@0: 
truelight@0: 	// not owned by me?
truelight@0: 	if (!CheckTileOwnership(tile) || !EnsureNoVehicle(tile)) return CMD_ERROR;
truelight@0: 
tron@3242: 	if (GetRailTypeCrossing(tile) == totype) return CMD_ERROR;
truelight@0: 
truelight@0: 	if (exec) {
tron@3242: 		SetRailTypeCrossing(tile, totype);
truelight@0: 		MarkTileDirtyByTile(tile);
truelight@0: 	}
truelight@0: 
truelight@0: 	return _price.build_rail >> 1;
truelight@0: }
truelight@0: 
truelight@0: 
Darkvater@1784: /** Build a long piece of road.
Darkvater@1784:  * @param x,y end tile of drag
Darkvater@1784:  * @param p1 start tile of drag
Darkvater@1784:  * @param p2 various bitstuffed elements
Darkvater@1784:  * - p2 = (bit 0) - start tile starts in the 2nd half of tile (p2 & 1)
Darkvater@1784:  * - p2 = (bit 1) - end tile starts in the 2nd half of tile (p2 & 2)
Darkvater@1784:  * - p2 = (bit 2) - direction: 0 = along x-axis, 1 = along y-axis (p2 & 4)
Darkvater@1784:  */
truelight@0: int32 CmdBuildLongRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
Darkvater@1784: 	TileIndex start_tile, end_tile, tile;
Darkvater@1784: 	int32 cost, ret;
truelight@0: 
darkvater@889: 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
darkvater@889: 
tron@2934: 	if (p1 >= MapSize()) return CMD_ERROR;
Darkvater@1784: 
truelight@0: 	start_tile = p1;
tron@1980: 	end_tile = TileVirtXY(x, y);
truelight@0: 
Darkvater@1784: 	/* Only drag in X or Y direction dictated by the direction variable */
Darkvater@1784: 	if (!HASBIT(p2, 2) && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR; // x-axis
Darkvater@1784: 	if (HASBIT(p2, 2)  && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR; // y-axis
Darkvater@1784: 
Darkvater@1784: 	/* Swap start and ending tile, also the half-tile drag var (bit 0 and 1) */
Darkvater@1784: 	if (start_tile > end_tile || (start_tile == end_tile && HASBIT(p2, 0))) {
Darkvater@1784: 		TileIndex t = start_tile;
Darkvater@1784: 		start_tile = end_tile;
Darkvater@1784: 		end_tile = t;
truelight@0: 		p2 ^= IS_INT_INSIDE(p2&3, 1, 3) ? 3 : 0;
truelight@0: 	}
truelight@0: 
truelight@0: 	cost = 0;
truelight@0: 	tile = start_tile;
truelight@0: 	// Start tile is the small number.
Darkvater@1784: 	for (;;) {
tron@3098: 		RoadBits bits = HASBIT(p2, 2) ? ROAD_Y : ROAD_X;
tron@3098: 
Darkvater@1784: 		if (tile == end_tile && !HASBIT(p2, 1)) bits &= ROAD_NW | ROAD_NE;
Darkvater@1784: 		if (tile == start_tile && HASBIT(p2, 0)) bits &= ROAD_SE | ROAD_SW;
truelight@0: 
Darkvater@1784: 		ret = DoCommandByTile(tile, bits, 0, flags, CMD_BUILD_ROAD);
Darkvater@1784: 		if (CmdFailed(ret)) {
Darkvater@1784: 			if (_error_message != STR_1007_ALREADY_BUILT) return CMD_ERROR;
tron@2549: 		} else {
truelight@0: 			cost += ret;
tron@2549: 		}
truelight@0: 
Darkvater@1784: 		if (tile == end_tile) break;
truelight@0: 
tron@1981: 		tile += HASBIT(p2, 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: 	}
truelight@0: 
Darkvater@1784: 	return (cost == 0) ? CMD_ERROR : cost;
truelight@0: }
truelight@0: 
Darkvater@1784: /** Remove a long piece of road.
Darkvater@1784:  * @param x,y end tile of drag
Darkvater@1784:  * @param p1 start tile of drag
Darkvater@1784:  * @param p2 various bitstuffed elements
Darkvater@1784:  * - p2 = (bit 0) - start tile starts in the 2nd half of tile (p2 & 1)
Darkvater@1784:  * - p2 = (bit 1) - end tile starts in the 2nd half of tile (p2 & 2)
Darkvater@1784:  * - p2 = (bit 2) - direction: 0 = along x-axis, 1 = along y-axis (p2 & 4)
Darkvater@1784:  */
truelight@0: int32 CmdRemoveLongRoad(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
Darkvater@1784: 	TileIndex start_tile, end_tile, tile;
Darkvater@1784: 	int32 cost, ret;
truelight@0: 
darkvater@889: 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
darkvater@889: 
tron@2934: 	if (p1 >= MapSize()) return CMD_ERROR;
Darkvater@1784: 
truelight@0: 	start_tile = p1;
tron@1980: 	end_tile = TileVirtXY(x, y);
truelight@0: 
Darkvater@1784: 	/* Only drag in X or Y direction dictated by the direction variable */
Darkvater@1784: 	if (!HASBIT(p2, 2) && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR; // x-axis
Darkvater@1784: 	if (HASBIT(p2, 2)  && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR; // y-axis
Darkvater@1784: 
Darkvater@1784: 	/* Swap start and ending tile, also the half-tile drag var (bit 0 and 1) */
Darkvater@1784: 	if (start_tile > end_tile || (start_tile == end_tile && HASBIT(p2, 0))) {
Darkvater@1784: 		TileIndex t = start_tile;
Darkvater@1784: 		start_tile = end_tile;
Darkvater@1784: 		end_tile = t;
tron@3017: 		p2 ^= IS_INT_INSIDE(p2 & 3, 1, 3) ? 3 : 0;
truelight@0: 	}
truelight@0: 
truelight@0: 	cost = 0;
truelight@0: 	tile = start_tile;
truelight@0: 	// Start tile is the small number.
Darkvater@1784: 	for (;;) {
tron@3098: 		RoadBits bits = HASBIT(p2, 2) ? ROAD_Y : ROAD_X;
tron@3098: 
Darkvater@1784: 		if (tile == end_tile && !HASBIT(p2, 1)) bits &= ROAD_NW | ROAD_NE;
Darkvater@1784: 		if (tile == start_tile && HASBIT(p2, 0)) bits &= ROAD_SE | ROAD_SW;
truelight@201: 
truelight@0: 		// try to remove the halves.
tron@3098: 		if (bits != 0) {
truelight@0: 			ret = DoCommandByTile(tile, bits, 0, flags, CMD_REMOVE_ROAD);
Darkvater@1784: 			if (!CmdFailed(ret)) cost += ret;
truelight@0: 		}
truelight@0: 
Darkvater@1784: 		if (tile == end_tile) break;
truelight@0: 
tron@1981: 		tile += HASBIT(p2, 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: 	}
truelight@0: 
Darkvater@1784: 	return (cost == 0) ? CMD_ERROR : cost;
truelight@0: }
truelight@0: 
Darkvater@1784: /** Build a road depot.
Darkvater@1784:  * @param x,y tile coordinates where the depot will be built
tron@3333:  * @param p1 entrance direction (DiagDirection)
Darkvater@1784:  * @param p2 unused
celestar@2085:  *
celestar@2085:  * @todo When checking for the tile slope,
celestar@2085:  * distingush between "Flat land required" and "land sloped in wrong direction"
truelight@0:  */
truelight@0: int32 CmdBuildRoadDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
truelight@0: 	int32 cost;
truelight@0: 	Depot *dep;
Darkvater@1784: 	TileIndex tile;
tron@3055: 	uint tileh;
truelight@0: 
truelight@0: 	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
truelight@0: 
Darkvater@1785: 	if (p1 > 3) return CMD_ERROR; // check direction
Darkvater@1784: 
tron@3055: 	tile = TileVirtXY(x, y);
truelight@0: 
tron@2549: 	if (!EnsureNoVehicle(tile)) return CMD_ERROR;
truelight@0: 
tron@3055: 	tileh = GetTileSlope(tile, NULL);
tron@3055: 	if (tileh != 0 && (
tron@2549: 				!_patches.build_on_slopes ||
tron@3055: 				IsSteepTileh(tileh) ||
tron@3055: 				!CanBuildDepotByTileh(p1, tileh)
tron@2549: 			)) {
tron@2549: 		return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
truelight@0: 	}
truelight@0: 
truelight@0: 	cost = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
Darkvater@1784: 	if (CmdFailed(cost)) return CMD_ERROR;
truelight@0: 
truelight@0: 	dep = AllocateDepot();
tron@2549: 	if (dep == NULL) return CMD_ERROR;
truelight@0: 
truelight@201: 	if (flags & DC_EXEC) {
Darkvater@2425: 		if (IsLocalPlayer()) _last_built_road_depot_tile = tile;
truelight@0: 
truelight@0: 		dep->xy = tile;
truelight@0: 		dep->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
truelight@0: 
tron@3099: 		MakeRoadDepot(tile, _current_player, p1);
tron@3100: 		MarkTileDirtyByTile(tile);
truelight@0: 	}
truelight@0: 	return cost + _price.build_road_depot;
truelight@0: }
truelight@0: 
tron@1979: static int32 RemoveRoadDepot(TileIndex tile, uint32 flags)
truelight@0: {
darkvater@149: 	if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER)
truelight@0: 		return CMD_ERROR;
truelight@0: 
tron@2639: 	if (!EnsureNoVehicle(tile)) return CMD_ERROR;
truelight@0: 
tron@2639: 	if (flags & DC_EXEC) DoDeleteDepot(tile);
truelight@0: 
truelight@0: 	return _price.remove_road_depot;
truelight@0: }
truelight@0: 
truelight@0: #define M(x) (1<<(x))
truelight@0: 
tron@1977: static int32 ClearTile_Road(TileIndex tile, byte flags)
tron@1977: {
tron@3069: 	switch (GetRoadType(tile)) {
tron@3069: 		case ROAD_NORMAL: {
tron@3069: 			RoadBits b = GetRoadBits(tile);
truelight@0: 
tron@3060: 			if (!((1 << b) & (M(1)|M(2)|M(4)|M(8))) &&
tron@3060: 					(!(flags & DC_AI_BUILDING) || !IsTileOwner(tile, OWNER_TOWN)) &&
tron@3060: 					flags & DC_AUTO) {
truelight@0: 				return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST);
tron@3060: 			}
tron@3060: 			return DoCommandByTile(tile, b, 0, flags, CMD_REMOVE_ROAD);
truelight@201: 		}
truelight@0: 
tron@3069: 		case ROAD_CROSSING: {
tron@3060: 			int32 ret;
tron@3060: 
tron@3069: 			if (flags & DC_AUTO) return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST);
tron@3060: 
tron@3070: 			ret = DoCommandByTile(tile, GetCrossingRoadBits(tile), 0, flags, CMD_REMOVE_ROAD);
tron@3060: 			if (CmdFailed(ret)) return CMD_ERROR;
tron@3060: 
tron@3060: 			if (flags & DC_EXEC) {
tron@3060: 				DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@3060: 			}
tron@3060: 			return ret;
tron@3060: 		}
tron@3060: 
tron@3069: 		default:
tron@3069: 		case ROAD_DEPOT:
tron@3060: 			if (flags & DC_AUTO) {
tron@3060: 				return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
tron@3060: 			}
tron@3060: 			return RemoveRoadDepot(tile, flags);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: typedef struct DrawRoadTileStruct {
truelight@0: 	uint16 image;
truelight@0: 	byte subcoord_x;
truelight@0: 	byte subcoord_y;
truelight@0: } DrawRoadTileStruct;
truelight@0: 
truelight@0: typedef struct DrawRoadSeqStruct {
truelight@0: 	uint32 image;
truelight@0: 	byte subcoord_x;
truelight@0: 	byte subcoord_y;
truelight@0: 	byte width;
truelight@0: 	byte height;
truelight@0: } DrawRoadSeqStruct;
truelight@0: 
truelight@0: #include "table/road_land.h"
truelight@0: 
truelight@0: 
tron@3098: uint GetRoadFoundation(uint tileh, RoadBits bits)
tron@2548: {
truelight@0: 	int i;
truelight@0: 	// normal level sloped building
tron@3017: 	if ((~_valid_tileh_slopes_road[1][tileh] & bits) == 0) return tileh;
truelight@0: 
truelight@0: 	// inclined sloped building
tron@3017: 	if ((
tron@3017: 				(i  = 0, tileh == 1) ||
tron@3017: 				(i += 2, tileh == 2) ||
tron@3017: 				(i += 2, tileh == 4) ||
tron@3017: 				(i += 2, tileh == 8)
tron@3017: 			) && (
tron@3098: 				(     bits == ROAD_X) ||
tron@3098: 				(i++, bits == ROAD_Y)
tron@3017: 			)) {
truelight@0: 		return i + 15;
tron@3017: 	}
truelight@0: 
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
truelight@0: const byte _road_sloped_sprites[14] = {
truelight@0: 	0,  0,  2,  0,
truelight@0: 	0,  1,  0,  0,
truelight@0: 	3,  0,  0,  0,
truelight@0: 	0,  0
truelight@0: };
truelight@0: 
peter1138@2471: /**
peter1138@2471:  * Draw ground sprite and road pieces
peter1138@2471:  * @param ti TileInfo
peter1138@2471:  * @param road RoadBits to draw
peter1138@2471:  */
celestar@3430: static void DrawRoadBits(TileInfo* ti, RoadBits road)
peter1138@2471: {
peter1138@2471: 	const DrawRoadTileStruct *drts;
peter1138@2471: 	PalSpriteID image = 0;
peter1138@2471: 
peter1138@2471: 	if (ti->tileh != 0) {
celestar@3430: 		int foundation = GetRoadFoundation(ti->tileh, road);
peter1138@2471: 
tron@2639: 		if (foundation != 0) DrawFoundation(ti, foundation);
peter1138@2471: 
peter1138@2471: 		// DrawFoundation() modifies ti.
peter1138@2471: 		// Default sloped sprites..
tron@2639: 		if (ti->tileh != 0) image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
peter1138@2471: 	}
peter1138@2471: 
tron@2639: 	if (image == 0) image = _road_tile_sprites_1[road];
peter1138@2471: 
celestar@3430: 	if (GetGroundType(ti->tile) == RGT_BARREN) image |= PALETTE_TO_BARE_LAND;
peter1138@2471: 
celestar@3430: 	if (IsOnSnow(ti->tile)) {
peter1138@2471: 		image += 19;
celestar@3430: 	} else if (HasPavement(ti->tile)) {
peter1138@2471: 		// Pavement tiles.
peter1138@2471: 		image -= 19;
peter1138@2471: 	}
peter1138@2471: 
peter1138@2471: 	DrawGroundSprite(image);
peter1138@2471: 
peter1138@2471: 	// Return if full detail is disabled, or we are zoomed fully out.
tron@2639: 	if (!(_display_opt & DO_FULL_DETAIL) || _cur_dpi->zoom == 2) return;
peter1138@2471: 
celestar@3430: 	if (HasRoadWorks(ti->tile)) {
peter1138@2471: 		// Road works
tron@3098: 		DrawGroundSprite(road & ROAD_X ? SPR_EXCAVATION_X : SPR_EXCAVATION_Y);
peter1138@2471: 		return;
peter1138@2471: 	}
peter1138@2471: 
peter1138@2471: 	// Draw extra details.
celestar@3430: 	for (drts = _road_display_table[GetGroundType(ti->tile)][road]; drts->image != 0; drts++) {
peter1138@2471: 		int x = ti->x | drts->subcoord_x;
peter1138@2471: 		int y = ti->y | drts->subcoord_y;
peter1138@2471: 		byte z = ti->z;
tron@2639: 		if (ti->tileh != 0) z = GetSlopeZ(x, y);
tron@3017: 		AddSortableSpriteToDraw(drts->image, x, y, 2, 2, 0x10, z);
peter1138@2471: 	}
peter1138@2471: }
peter1138@2471: 
truelight@0: static void DrawTile_Road(TileInfo *ti)
truelight@0: {
peter1138@2471: 	PalSpriteID image;
truelight@0: 
tron@3098: 	switch (GetRoadType(ti->tile)) {
tron@3098: 		case ROAD_NORMAL:
celestar@3430: 			DrawRoadBits(ti, GetRoadBits(ti->tile));
tron@3060: 			break;
truelight@0: 
tron@3098: 		case ROAD_CROSSING: {
tron@3097: 			if (ti->tileh != 0) DrawFoundation(ti, ti->tileh);
truelight@0: 
tron@3242: 			image = GetRailTypeInfo(GetRailTypeCrossing(ti->tile))->base_sprites.crossing;
tron@3060: 
tron@3272: 			if (GetCrossingRoadAxis(ti->tile) == AXIS_X) image++;
tron@3060: 
celestar@3322: 			if (IsCrossingBarred(ti->tile)) image += 2;
tron@3060: 
celestar@3430: 			if (IsOnSnow(ti->tile)) {
tron@3060: 				image += 8;
tron@3060: 			} else {
celestar@3430: 				if (GetGroundType(ti->tile) == RGT_BARREN) image |= PALETTE_TO_BARE_LAND;
celestar@3430: 				if (HasPavement(ti->tile)) image += 4;
tron@3060: 			}
tron@3060: 
tron@3060: 			DrawGroundSprite(image);
tron@3367: 			if (GetRailTypeCrossing(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
tron@3060: 			break;
truelight@0: 		}
truelight@0: 
tron@3098: 		default:
tron@3098: 		case ROAD_DEPOT: {
tron@3060: 			uint32 ormod;
tron@3060: 			PlayerID player;
tron@3060: 			const DrawRoadSeqStruct* drss;
truelight@0: 
tron@3060: 			if (ti->tileh != 0) DrawFoundation(ti, ti->tileh);
tron@1398: 
tron@3060: 			ormod = PALETTE_TO_GREY;	//was this a bug/problem?
tron@3060: 			player = GetTileOwner(ti->tile);
tron@3060: 			if (player < MAX_PLAYERS) ormod = PLAYER_SPRITE_COLOR(player);
truelight@0: 
tron@3167: 			drss = _road_display_datas[GetRoadDepotDirection(ti->tile)];
tron@3060: 
tron@3060: 			DrawGroundSprite(drss++->image);
tron@3060: 
tron@3060: 			for (; drss->image != 0; drss++) {
tron@3060: 				uint32 image = drss->image;
tron@3060: 
tron@3060: 				if (image & PALETTE_MODIFIER_COLOR) image |= ormod;
tron@3060: 				if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
tron@3060: 
tron@3060: 				AddSortableSpriteToDraw(image, ti->x | drss->subcoord_x,
tron@3060: 					ti->y | drss->subcoord_y, drss->width, drss->height, 0x14, ti->z
tron@3060: 				);
tron@3060: 			}
tron@3060: 			break;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void DrawRoadDepotSprite(int x, int y, int image)
truelight@0: {
truelight@0: 	uint32 ormod;
truelight@0: 	const DrawRoadSeqStruct *dtss;
truelight@0: 
truelight@0: 	ormod = PLAYER_SPRITE_COLOR(_local_player);
truelight@0: 
tron@1398: 	dtss = _road_display_datas[image];
truelight@0: 
tron@2639: 	x += 33;
tron@2639: 	y += 17;
truelight@0: 
tron@1398: 	DrawSprite(dtss++->image, x, y);
truelight@0: 
tron@2952: 	for (; dtss->image != 0; dtss++) {
truelight@0: 		Point pt = RemapCoords(dtss->subcoord_x, dtss->subcoord_y, 0);
truelight@201: 
truelight@0: 		image = dtss->image;
tron@2639: 		if (image & PALETTE_MODIFIER_COLOR) image |= ormod;
truelight@0: 
truelight@0: 		DrawSprite(image, x + pt.x, y + pt.y);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@2537: static uint GetSlopeZ_Road(const TileInfo* ti)
truelight@0: {
tron@3286: 	uint tileh = ti->tileh;
truelight@0: 	uint z = ti->z;
tron@3098: 
tron@3286: 	if (tileh == 0) return z;
tron@3286: 	if (GetRoadType(ti->tile) == ROAD_NORMAL) {
tron@3286: 		uint f = GetRoadFoundation(tileh, GetRoadBits(ti->tile));
tron@3060: 
tron@3286: 		if (f != 0) {
tron@3286: 			if (f < 15) return z + 8; // leveled foundation
tron@3286: 			tileh = _inclined_tileh[f - 15]; // inclined foundation
truelight@0: 		}
tron@3286: 		return z + GetPartialZ(ti->x & 0xF, ti->y & 0xF, tileh);
tron@3286: 	} else {
tron@3286: 		return z + 8;
truelight@0: 	}
dominik@39: }
dominik@39: 
tron@3418: static uint GetSlopeTileh_Road(TileIndex tile, uint tileh)
dominik@39: {
tron@3418: 	if (tileh == 0) return 0;
tron@3418: 	if (GetRoadType(tile) == ROAD_NORMAL) {
tron@3418: 		uint f = GetRoadFoundation(tileh, GetRoadBits(tile));
tron@3098: 
tron@3418: 		if (f == 0) return tileh;
tron@3286: 		if (f < 15) return 0; // leveled foundation
tron@3286: 		return _inclined_tileh[f - 15]; // inclined foundation
tron@3286: 	} else {
tron@3286: 		return 0;
dominik@39: 	}
truelight@0: }
truelight@0: 
tron@1977: static void GetAcceptedCargo_Road(TileIndex tile, AcceptedCargo ac)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
tron@1977: static void AnimateTile_Road(TileIndex tile)
truelight@0: {
tron@2639: 	if (IsLevelCrossing(tile)) MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: 
celestar@3430: static const RoadGroundType _town_road_types[5][2] = {
celestar@3430: 	{RGT_GRASS,RGT_GRASS},
celestar@3430: 	{RGT_PAVED,RGT_PAVED},
celestar@3430: 	{RGT_PAVED,RGT_PAVED},
celestar@3430: 	{RGT_ALLEY,RGT_ALLEY},
celestar@3430: 	{RGT_LIGHT,RGT_PAVED},
truelight@0: };
truelight@0: 
celestar@3430: static const RoadGroundType _town_road_types_2[5][2] = {
celestar@3430: 	{RGT_GRASS,RGT_GRASS},
celestar@3430: 	{RGT_PAVED,RGT_PAVED},
celestar@3430: 	{RGT_LIGHT,RGT_PAVED},
celestar@3430: 	{RGT_LIGHT,RGT_PAVED},
celestar@3430: 	{RGT_LIGHT,RGT_PAVED},
truelight@0: };
truelight@0: 
truelight@0: 
tron@1977: static void TileLoop_Road(TileIndex tile)
truelight@0: {
truelight@0: 	Town *t;
truelight@0: 	int grp;
truelight@201: 
tron@3017: 	switch (_opt.landscape) {
tron@3017: 		case LT_HILLY:
celestar@3430: 			if (IsOnSnow(tile) != (GetTileZ(tile) > _opt.snow_line)) {
celestar@3430: 				ToggleSnow(tile);
tron@3017: 				MarkTileDirtyByTile(tile);
tron@3017: 			}
tron@3017: 			break;
tron@3017: 
tron@3017: 		case LT_DESERT:
celestar@3430: 			if (GetTropicZone(tile) == TROPICZONE_DESERT && !IsOnDesert(tile)) {
celestar@3430: 				ToggleDesert(tile);
tron@3017: 				MarkTileDirtyByTile(tile);
tron@3017: 			}
tron@3017: 			break;
truelight@0: 	}
truelight@0: 
tron@3069: 	if (GetRoadType(tile) == ROAD_DEPOT) return;
truelight@0: 
celestar@3430: 	if (!HasRoadWorks(tile)) {
truelight@1281: 		t = ClosestTownFromTile(tile, (uint)-1);
truelight@1280: 
truelight@0: 		grp = 0;
truelight@0: 		if (t != NULL) {
truelight@0: 			grp = GetTownRadiusGroup(t, tile);
truelight@201: 
truelight@0: 			// Show an animation to indicate road work
truelight@201: 			if (t->road_build_months != 0 &&
tron@1245: 					!(DistanceManhattan(t->xy, tile) >= 8 && grp == 0) &&
celestar@3430: 					GetRoadType(tile) == ROAD_NORMAL && (GetRoadBits(tile) == ROAD_X || GetRoadBits(tile) == ROAD_Y)) {
tron@3017: 				if (GetTileSlope(tile, NULL) == 0 && EnsureNoVehicle(tile) && CHANCE16(1, 20)) {
celestar@3430: 					StartRoadWorks(tile);
truelight@201: 
tron@541: 					SndPlayTileFx(SND_21_JACKHAMMER, tile);
truelight@0: 					CreateEffectVehicleAbove(
celestar@3421: 						TileX(tile) * TILE_SIZE + 7,
celestar@3421: 						TileY(tile) * TILE_SIZE + 7,
truelight@0: 						0,
tron@1359: 						EV_BULLDOZER);
truelight@0: 					MarkTileDirtyByTile(tile);
truelight@0: 					return;
truelight@0: 				}
truelight@0: 			}
truelight@0: 		}
truelight@0: 
truelight@0: 		{
celestar@3430: 			/* Adjust road ground type depending on 'grp' (grp is the distance to the center) */
celestar@3430: 			const RoadGroundType *target_rgt = (_opt.landscape == LT_CANDY) ? _town_road_types_2[grp] : _town_road_types[grp];
celestar@3430: 			RoadGroundType rgt = GetGroundType(tile);
truelight@201: 
celestar@3430: 			/* We have our desired type, do nothing */
celestar@3430: 			if (rgt == target_rgt[0]) return;
celestar@3430: 
celestar@3430: 			/* We have the pre-type of the desired type, switch to the desired type */
celestar@3430: 			if (rgt == target_rgt[1]) {
celestar@3430: 				rgt = target_rgt[0];
celestar@3430: 			/* We have barren land, install the pre-type */
celestar@3430: 			} else if (rgt == RGT_BARREN) {
celestar@3430: 				rgt = target_rgt[1];
celestar@3430: 			/* We're totally off limits, remove any installation and make barren land */
truelight@0: 			} else {
celestar@3430: 				rgt = RGT_BARREN;
truelight@0: 			}
celestar@3430: 			SetGroundType(tile, rgt);
truelight@0: 			MarkTileDirtyByTile(tile);
truelight@0: 		}
celestar@3430: 	} else if (IncreaseRoadWorksCounter(tile)) {
celestar@3430: 		TerminateRoadWorks(tile);
truelight@0: 		MarkTileDirtyByTile(tile);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@1977: void ShowRoadDepotWindow(TileIndex tile);
truelight@0: 
tron@1977: static void ClickTile_Road(TileIndex tile)
truelight@0: {
tron@3069: 	if (GetRoadType(tile) == ROAD_DEPOT) ShowRoadDepotWindow(tile);
truelight@0: }
truelight@0: 
truelight@0: static const byte _road_trackbits[16] = {
truelight@0: 	0x0, 0x0, 0x0, 0x10, 0x0, 0x2, 0x8, 0x1A, 0x0, 0x4, 0x1, 0x15, 0x20, 0x26, 0x29, 0x3F,
truelight@0: };
truelight@0: 
tron@1977: static uint32 GetTileTrackStatus_Road(TileIndex tile, TransportType mode)
tron@1977: {
tron@3066: 	switch (mode) {
tron@3066: 		case TRANSPORT_RAIL:
tron@3066: 			if (!IsLevelCrossing(tile)) return 0;
tron@3267: 			return GetCrossingRailBits(tile) * 0x101;
truelight@201: 
tron@3066: 		case TRANSPORT_ROAD:
tron@3071: 			switch (GetRoadType(tile)) {
tron@3069: 				case ROAD_NORMAL:
celestar@3430: 					return HasRoadWorks(tile) ?  0 : _road_trackbits[GetRoadBits(tile)] * 0x101;
tron@3066: 
tron@3069: 				case ROAD_CROSSING: {
tron@3415: 					uint32 r = (GetCrossingRoadAxis(tile) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
tron@3272: 
tron@3367: 					if (IsCrossingBarred(tile)) r *= 0x10001;
tron@3066: 					return r;
tron@3066: 				}
tron@3066: 
tron@3069: 				default:
tron@3069: 				case ROAD_DEPOT:
tron@3066: 					break;
truelight@201: 			}
tron@3066: 			break;
tron@3066: 
tron@3066: 		default: break;
truelight@0: 	}
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
truelight@0: static const StringID _road_tile_strings[] = {
truelight@0: 	STR_1814_ROAD,
truelight@0: 	STR_1814_ROAD,
truelight@0: 	STR_1814_ROAD,
truelight@0: 	STR_1815_ROAD_WITH_STREETLIGHTS,
truelight@0: 	STR_1814_ROAD,
truelight@0: 	STR_1816_TREE_LINED_ROAD,
truelight@0: 	STR_1814_ROAD,
truelight@0: 	STR_1814_ROAD,
truelight@0: };
truelight@0: 
tron@1977: static void GetTileDesc_Road(TileIndex tile, TileDesc *td)
truelight@0: {
tron@1901: 	td->owner = GetTileOwner(tile);
tron@3069: 	switch (GetRoadType(tile)) {
tron@3069: 		case ROAD_CROSSING: td->str = STR_1818_ROAD_RAIL_LEVEL_CROSSING; break;
tron@3069: 		case ROAD_DEPOT: td->str = STR_1817_ROAD_VEHICLE_DEPOT; break;
celestar@3430: 		default: td->str = _road_tile_strings[GetGroundType(tile)]; break;
tron@3069: 	}
truelight@0: }
truelight@0: 
truelight@0: static const byte _roadveh_enter_depot_unk0[4] = {
truelight@0: 	8, 9, 0, 1
truelight@0: };
truelight@0: 
tron@1977: static uint32 VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
tron@3069: 	switch (GetRoadType(tile)) {
tron@3069: 		case ROAD_CROSSING:
celestar@3322: 			if (v->type == VEH_Train && !IsCrossingBarred(tile)) {
tron@3060: 				/* train crossing a road */
tron@3060: 				SndPlayVehicleFx(SND_0E_LEVEL_CROSSING, v);
celestar@3322: 				BarCrossing(tile);
tron@3060: 				MarkTileDirtyByTile(tile);
truelight@0: 			}
tron@3060: 			break;
tron@3060: 
tron@3069: 		case ROAD_DEPOT:
tron@3060: 			if (v->type == VEH_Road && v->u.road.frame == 11) {
tron@3167: 				if (_roadveh_enter_depot_unk0[GetRoadDepotDirection(tile)] == v->u.road.state) {
tron@3060: 					RoadVehEnterDepot(v);
tron@3060: 					return 4;
tron@3060: 				}
tron@3060: 			}
tron@3060: 			break;
tron@3060: 
tron@3060: 		default: break;
truelight@0: 	}
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
tron@1977: static void VehicleLeave_Road(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
Darkvater@1927: 	if (IsLevelCrossing(tile) && v->type == VEH_Train && v->next == NULL) {
celestar@3322: 		UnbarCrossing(tile);
truelight@0: 		MarkTileDirtyByTile(tile);
truelight@0: 	}
truelight@0: }
truelight@0: 
Darkvater@2436: static void ChangeTileOwner_Road(TileIndex tile, PlayerID old_player, PlayerID new_player)
truelight@0: {
tron@3274: 	if (IsLevelCrossing(tile) && GetCrossingRoadOwner(tile) == old_player) {
tron@3274: 		SetCrossingRoadOwner(tile, new_player == OWNER_SPECTATOR ? OWNER_NONE : new_player);
truelight@0: 	}
truelight@0: 
tron@1901: 	if (!IsTileOwner(tile, old_player)) return;
truelight@0: 
tron@2502: 	if (new_player != OWNER_SPECTATOR) {
tron@1902: 		SetTileOwner(tile, new_player);
truelight@0: 	}	else {
tron@3069: 		switch (GetRoadType(tile)) {
tron@3069: 			case ROAD_NORMAL:
tron@3060: 				SetTileOwner(tile, OWNER_NONE);
tron@3060: 				break;
tron@3060: 
tron@3069: 			case ROAD_CROSSING:
tron@3319: 				MakeRoadNormal(tile, GetCrossingRoadOwner(tile), GetCrossingRoadBits(tile), GetTownIndex(tile));
tron@3060: 				break;
tron@3060: 
tron@3069: 			default:
tron@3069: 			case ROAD_DEPOT:
tron@3060: 				DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
tron@3060: 				break;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@1093: void InitializeRoad(void)
truelight@0: {
truelight@0: 	_last_built_road_depot_tile = 0;
truelight@0: }
truelight@0: 
truelight@0: const TileTypeProcs _tile_type_road_procs = {
truelight@0: 	DrawTile_Road,						/* draw_tile_proc */
truelight@0: 	GetSlopeZ_Road,						/* get_slope_z_proc */
truelight@0: 	ClearTile_Road,						/* clear_tile_proc */
truelight@0: 	GetAcceptedCargo_Road,		/* get_accepted_cargo_proc */
truelight@0: 	GetTileDesc_Road,					/* get_tile_desc_proc */
truelight@0: 	GetTileTrackStatus_Road,	/* get_tile_track_status_proc */
truelight@0: 	ClickTile_Road,						/* click_tile_proc */
truelight@0: 	AnimateTile_Road,					/* animate_tile_proc */
truelight@0: 	TileLoop_Road,						/* tile_loop_clear */
truelight@0: 	ChangeTileOwner_Road,			/* change_tile_owner_clear */
truelight@0: 	NULL,											/* get_produced_cargo_proc */
truelight@0: 	VehicleEnter_Road,				/* vehicle_enter_tile_proc */
truelight@0: 	VehicleLeave_Road,				/* vehicle_leave_tile_proc */
dominik@39: 	GetSlopeTileh_Road,				/* get_slope_tileh_proc */
truelight@0: };