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"
tron@4232: #include "sprite.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"
KUDr@3900: #include "yapf/yapf.h"
truelight@1313: #include "depot.h"
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;
Darkvater@4849: 	Owner 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.
Darkvater@4850: 	if (!IsValidPlayer(_current_player)) return true;
truelight@0: 
Darkvater@3560: 	owner = IsLevelCrossingTile(tile) ? GetCrossingRoadOwner(tile) : GetTileOwner(tile);
Darkvater@3560: 
truelight@0: 	// Only do the special processing if the road is owned
truelight@0: 	// by a town
Darkvater@4849: 	if (owner != OWNER_TOWN) return (owner == OWNER_NONE) || CheckOwnership(owner);
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.
tron@3491:  * @param tile tile where to remove road from
Darkvater@1784:  * @param p1 road piece flags
Darkvater@1784:  * @param p2 unused
truelight@0:  */
tron@3491: int32 CmdRemoveRoad(TileIndex tile, 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@4849: 	Owner 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: 
celestar@5573: 	if (!IsTileType(tile, MP_STREET)) return CMD_ERROR;
Darkvater@2074: 
Darkvater@3560: 	owner = IsLevelCrossingTile(tile) ? GetCrossingRoadOwner(tile) : GetTileOwner(tile);
Darkvater@1638: 
Darkvater@1638: 	if (owner == OWNER_TOWN && _game_mode != GM_EDITOR) {
celestar@5573: 		t = GetTownByTile(tile);
tron@3017: 	} else {
truelight@1280: 		t = NULL;
tron@3017: 	}
truelight@201: 
tron@3149: 	if (!CheckAllowRemoveRoad(tile, pieces, &edge_road)) return CMD_ERROR;
truelight@0: 
celestar@5573: 	if (!EnsureNoVehicle(tile)) return CMD_ERROR;
celestar@3933: 
celestar@5573: 	// check if you're allowed to remove the street owned by a town
celestar@5573: 	// removal allowance depends on difficulty setting
celestar@5573: 	if (!CheckforTownRating(flags, t, ROAD_REMOVE)) return CMD_ERROR;
celestar@5573: 
celestar@5573: 	switch (GetRoadTileType(tile)) {
celestar@5573: 		case ROAD_TILE_NORMAL: {
celestar@5573: 			RoadBits present = GetRoadBits(tile);
celestar@5573: 			RoadBits c = pieces;
celestar@5573: 
celestar@5573: 			if (HasRoadWorks(tile)) return_cmd_error(STR_ROAD_WORKS_IN_PROGRESS);
celestar@5573: 
celestar@5573: 			if (GetTileSlope(tile, NULL) != SLOPE_FLAT  &&
celestar@5573: 					(present == ROAD_Y || present == ROAD_X)) {
celestar@5573: 				c |= (c & 0xC) >> 2;
celestar@5573: 				c |= (c & 0x3) << 2;
celestar@5573: 			}
celestar@5573: 
celestar@5573: 			// limit the bits to delete to the existing bits.
celestar@5573: 			c &= present;
celestar@5573: 			if (c == 0) return CMD_ERROR;
celestar@5573: 
celestar@5573: 			if (flags & DC_EXEC) {
celestar@5573: 				ChangeTownRating(t, -road_remove_cost[(byte)edge_road], RATING_ROAD_MINIMUM);
celestar@5573: 
celestar@5573: 				present ^= c;
celestar@5573: 				if (present == 0) {
celestar@5573: 					DoClearSquare(tile);
celestar@5573: 				} else {
celestar@5573: 					SetRoadBits(tile, present);
celestar@5573: 					MarkTileDirtyByTile(tile);
celestar@5573: 				}
celestar@5573: 			}
celestar@5573: 			return CountRoadBits(c) * _price.remove_road;
celestar@5573: 		}
celestar@5573: 
celestar@5573: 		case ROAD_TILE_CROSSING: {
celestar@5573: 			if (pieces & ComplementRoadBits(GetCrossingRoadBits(tile))) {
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);
celestar@5573: 
celestar@5573: 				MakeRailNormal(tile, GetTileOwner(tile), GetCrossingRailBits(tile), GetRailTypeCrossing(tile));
tron@3060: 				MarkTileDirtyByTile(tile);
celestar@5573: 				YapfNotifyTrackLayoutChange(tile, FIND_FIRST_BIT(GetTrackBits(tile)));
truelight@0: 			}
tron@3381: 			return _price.remove_road * 2;
celestar@5573: 		}
tron@3977: 
celestar@5573: 		default:
celestar@5573: 		case ROAD_TILE_DEPOT:
celestar@5573: 			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@3636: static uint32 CheckRoadSlope(Slope tileh, RoadBits* pieces, RoadBits existing)
truelight@0: {
tron@3381: 	RoadBits road_bits;
truelight@201: 
tron@4246: 	if (IsSteepSlope(tileh)) {
tron@4246: 		if (existing == 0) {
tron@4246: 			// force full pieces.
tron@4246: 			*pieces |= (*pieces & 0xC) >> 2;
tron@4246: 			*pieces |= (*pieces & 0x3) << 2;
tron@4246: 			if (*pieces == ROAD_X || *pieces == ROAD_Y) return _price.terraform;
tron@4246: 		}
tron@4246: 		return CMD_ERROR;
tron@4246: 	}
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@3636: 		if (tileh != SLOPE_FLAT) *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@4077: 		return existing != 0 ? 0 : _price.terraform;
tron@3381: 	}
tron@3381: 
tron@3381: 	// partly leveled up tile, only if there's no road on that tile
tron@3636: 	if (existing == 0 && (tileh == SLOPE_W || tileh == SLOPE_S || tileh == SLOPE_E || tileh == SLOPE_N)) {
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.
tron@3491:  * @param tile tile where to build road
Darkvater@1784:  * @param p1 road piece flags
Darkvater@1784:  * @param p2 the town that is building the road (0 if not applicable)
truelight@0:  */
tron@3491: int32 CmdBuildRoad(TileIndex tile, 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;
tron@3636: 	Slope 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 */
Darkvater@4850: 	if ((p1 >> 4) || (IsValidPlayer(_current_player) && p2 != 0) || !IsValidTownID(p2)) return CMD_ERROR;
tron@3150: 	pieces = p1;
Darkvater@1784: 
celestar@3434: 	tileh = GetTileSlope(tile, NULL);
truelight@0: 
celestar@3434: 	switch (GetTileType(tile)) {
tron@3060: 		case MP_STREET:
rubidium@3793: 			switch (GetRoadTileType(tile)) {
rubidium@3793: 				case ROAD_TILE_NORMAL:
tron@4046: 					if (HasRoadWorks(tile)) return_cmd_error(STR_ROAD_WORKS_IN_PROGRESS);
tron@4046: 
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: 
rubidium@3793: 				case ROAD_TILE_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:
rubidium@3793: 				case ROAD_TILE_DEPOT:
tron@3066: 					goto do_clear;
tron@3060: 			}
tron@3060: 			break;
truelight@0: 
tron@3060: 		case MP_RAILWAY: {
tron@3099: 			Axis roaddir;
dominik@13: 
tron@3636: 			if (IsSteepSlope(tileh)) {
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 */
tron@3636: 			if (!HASBIT(M(SLOPE_SEN) | M(SLOPE_ENW) | M(SLOPE_NWS) | M(SLOPE_NS) | M(SLOPE_WSE) | M(SLOPE_EW) | M(SLOPE_FLAT), tileh)) {
tron@3060: 				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
tron@3060: 			}
tron@3104: #undef M
tron@3060: 
rubidium@3792: 			if (GetRailTileType(tile) != RAIL_TILE_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) {
KUDr@5212: 				YapfNotifyTrackLayoutChange(tile, FIND_FIRST_BIT(GetTrackBits(tile)));
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: 		default:
truelight@0: do_clear:;
tron@3491: 			ret = DoCommand(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);
Darkvater@3670: 	/* Return an error if we need to build a foundation (ret != 0) but the
Darkvater@3670: 	 * current patch-setting is turned off (or stupid AI@work) */
Darkvater@3673: 	if (CmdFailed(ret) || (ret != 0 && (!_patches.build_on_slopes || _is_old_ai_player)))
Darkvater@3670: 		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
Darkvater@3670: 
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: 
KUDr@5116: 	// 'hidden' elrails can't be downgraded to normal rail when elrails are disabled
KUDr@5116: 	if (_patches.disable_elrails && totype == RAILTYPE_RAIL && GetRailTypeCrossing(tile) == RAILTYPE_ELECTRIC) return CMD_ERROR;
KUDr@5116: 
truelight@0: 	if (exec) {
tron@3242: 		SetRailTypeCrossing(tile, totype);
truelight@0: 		MarkTileDirtyByTile(tile);
KUDr@3900: 		YapfNotifyTrackLayoutChange(tile, FIND_FIRST_BIT(GetCrossingRailBits(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.
tron@3491:  * @param end_tile 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:  */
tron@3491: int32 CmdBuildLongRoad(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3491: 	TileIndex start_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;
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: 
tron@3491: 		ret = DoCommand(tile, bits, 0, flags, CMD_BUILD_ROAD);
Darkvater@1784: 		if (CmdFailed(ret)) {
Darkvater@1784: 			if (_error_message != STR_1007_ALREADY_BUILT) return CMD_ERROR;
Darkvater@3671: 			_error_message = INVALID_STRING_ID;
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.
tron@3491:  * @param end_tile 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:  */
tron@3491: int32 CmdRemoveLongRoad(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3491: 	TileIndex start_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;
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) {
tron@3491: 			ret = DoCommand(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.
tron@3491:  * @param tile tile where to build the depot
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:  */
tron@3491: int32 CmdBuildRoadDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
truelight@0: 	int32 cost;
truelight@0: 	Depot *dep;
tron@3636: 	Slope 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@2549: 	if (!EnsureNoVehicle(tile)) return CMD_ERROR;
truelight@0: 
tron@3055: 	tileh = GetTileSlope(tile, NULL);
tron@3636: 	if (tileh != SLOPE_FLAT && (
tron@2549: 				!_patches.build_on_slopes ||
tron@3636: 				IsSteepSlope(tileh) ||
tron@3055: 				!CanBuildDepotByTileh(p1, tileh)
tron@2549: 			)) {
tron@2549: 		return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
truelight@0: 	}
truelight@0: 
tron@3491: 	cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
Darkvater@1784: 	if (CmdFailed(cost)) return CMD_ERROR;
truelight@0: 
celestar@5573: 	if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5573: 
truelight@0: 	dep = AllocateDepot();
tron@2549: 	if (dep == NULL) return CMD_ERROR;
truelight@0: 
truelight@201: 	if (flags & DC_EXEC) {
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: 
truelight@4388: 	if (flags & DC_EXEC) DeleteDepot(GetDepotByTile(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: {
rubidium@3793: 	switch (GetRoadTileType(tile)) {
rubidium@3793: 		case ROAD_TILE_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@3491: 			return DoCommand(tile, b, 0, flags, CMD_REMOVE_ROAD);
truelight@201: 		}
truelight@0: 
rubidium@3793: 		case ROAD_TILE_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@3491: 			ret = DoCommand(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@3491: 				DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@3060: 			}
tron@3060: 			return ret;
tron@3060: 		}
tron@3060: 
tron@3069: 		default:
rubidium@3793: 		case ROAD_TILE_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: #include "table/road_land.h"
truelight@0: 
truelight@0: 
tron@3636: uint GetRoadFoundation(Slope tileh, RoadBits bits)
tron@2548: {
tron@3878: 	uint i;
tron@3878: 
truelight@0: 	// normal level sloped building
tron@4246: 	if (!IsSteepSlope(tileh) &&
tron@4246: 			(~_valid_tileh_slopes_road[1][tileh] & bits) == 0) {
tron@4246: 		return tileh;
tron@4246: 	}
truelight@0: 
truelight@0: 	// inclined sloped building
tron@3878: 	switch (bits) {
tron@3878: 		case ROAD_X: i = 0; break;
tron@3878: 		case ROAD_Y: i = 1; break;
tron@3878: 		default:     return 0;
tron@3017: 	}
tron@3878: 	switch (tileh) {
tron@4246: 		case SLOPE_W:
tron@4246: 		case SLOPE_STEEP_W: i += 0; break;
tron@4246: 		case SLOPE_S:
tron@4246: 		case SLOPE_STEEP_S: i += 2; break;
tron@4246: 		case SLOPE_E:
tron@4246: 		case SLOPE_STEEP_E: i += 4; break;
tron@4246: 		case SLOPE_N:
tron@4246: 		case SLOPE_STEEP_N: i += 6; break;
tron@4246: 		default: return 0;
tron@3878: 	}
tron@3878: 	return i + 15;
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:  */
tron@4081: static void DrawRoadBits(TileInfo* ti)
peter1138@2471: {
tron@4081: 	RoadBits road = GetRoadBits(ti->tile);
peter1138@2471: 	const DrawRoadTileStruct *drts;
peter1138@2471: 	PalSpriteID image = 0;
tron@4048: 	Roadside roadside;
peter1138@2471: 
tron@3636: 	if (ti->tileh != SLOPE_FLAT) {
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@3636: 		if (ti->tileh != SLOPE_FLAT) 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: 
tron@4048: 	roadside = GetRoadside(ti->tile);
peter1138@2471: 
celestar@3430: 	if (IsOnSnow(ti->tile)) {
peter1138@2471: 		image += 19;
tron@4048: 	} else {
tron@4048: 		switch (roadside) {
tron@4048: 			case ROADSIDE_BARREN:           image |= PALETTE_TO_BARE_LAND; break;
tron@4048: 			case ROADSIDE_GRASS:            break;
tron@4048: 			case ROADSIDE_GRASS_ROAD_WORKS: break;
tron@4048: 			default:                        image -= 19; break; // Paved
tron@4048: 		}
peter1138@2471: 	}
peter1138@2471: 
peter1138@2471: 	DrawGroundSprite(image);
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: 
tron@5148: 	// Return if full detail is disabled, or we are zoomed fully out.
tron@5148: 	if (!(_display_opt & DO_FULL_DETAIL) || _cur_dpi->zoom == 2) return;
tron@5148: 
peter1138@2471: 	// Draw extra details.
tron@4048: 	for (drts = _road_display_table[roadside][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@3636: 		if (ti->tileh != SLOPE_FLAT) 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: {
rubidium@3793: 	switch (GetRoadTileType(ti->tile)) {
rubidium@3793: 		case ROAD_TILE_NORMAL:
tron@4081: 			DrawRoadBits(ti);
tron@3060: 			break;
truelight@0: 
rubidium@3793: 		case ROAD_TILE_CROSSING: {
tron@4000: 			PalSpriteID image;
tron@4000: 
tron@3636: 			if (ti->tileh != SLOPE_FLAT) 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++;
celestar@3322: 			if (IsCrossingBarred(ti->tile)) image += 2;
tron@3060: 
celestar@3430: 			if (IsOnSnow(ti->tile)) {
tron@3060: 				image += 8;
tron@3060: 			} else {
tron@4048: 				switch (GetRoadside(ti->tile)) {
tron@4048: 					case ROADSIDE_BARREN: image |= PALETTE_TO_BARE_LAND; break;
tron@4048: 					case ROADSIDE_GRASS:  break;
tron@4048: 					default:              image += 4; break; // Paved
tron@4048: 				}
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:
rubidium@3793: 		case ROAD_TILE_DEPOT: {
tron@4232: 			const DrawTileSprites* dts;
tron@4232: 			const DrawTileSeqStruct* dtss;
tron@4226: 			uint32 palette;
truelight@0: 
tron@3636: 			if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, ti->tileh);
tron@1398: 
tron@4226: 			palette = PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile));
truelight@0: 
tron@4232: 			dts =  &_road_depot[GetRoadDepotDirection(ti->tile)];
tron@4232: 			DrawGroundSprite(dts->ground_sprite);
tron@3060: 
tron@4232: 			for (dtss = dts->seq; dtss->image != 0; dtss++) {
tron@4232: 				uint32 image = dtss->image;
tron@3060: 
tron@4226: 				if (_display_opt & DO_TRANS_BUILDINGS) {
tron@4226: 					MAKE_TRANSPARENT(image);
tron@4226: 				} else if (image & PALETTE_MODIFIER_COLOR) {
tron@4226: 					image |= palette;
tron@4226: 				}
tron@3060: 
tron@4077: 				AddSortableSpriteToDraw(
tron@4232: 					image,
tron@4232: 					ti->x + dtss->delta_x, ti->y + dtss->delta_y,
tron@4232: 					dtss->size_x, dtss->size_y,
tron@4232: 					dtss->size_z, ti->z
tron@3060: 				);
tron@3060: 			}
tron@3060: 			break;
truelight@0: 		}
truelight@0: 	}
celestar@5573: 	DrawBridgeMiddle(ti);
truelight@0: }
truelight@0: 
tron@4212: void DrawRoadDepotSprite(int x, int y, DiagDirection dir)
truelight@0: {
tron@4232: 	uint32 palette = PLAYER_SPRITE_COLOR(_local_player);
tron@4232: 	const DrawTileSprites* dts =  &_road_depot[dir];
tron@4232: 	const DrawTileSeqStruct* dtss;
truelight@0: 
tron@2639: 	x += 33;
tron@2639: 	y += 17;
truelight@0: 
tron@4232: 	DrawSprite(dts->ground_sprite, x, y);
truelight@0: 
tron@4232: 	for (dtss = dts->seq; dtss->image != 0; dtss++) {
tron@4232: 		Point pt = RemapCoords(dtss->delta_x, dtss->delta_y, dtss->delta_z);
tron@4212: 		uint32 image = dtss->image;
truelight@201: 
tron@4232: 		if (image & PALETTE_MODIFIER_COLOR) image |= palette;
truelight@0: 
truelight@0: 		DrawSprite(image, x + pt.x, y + pt.y);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@4231: static uint GetSlopeZ_Road(TileIndex tile, uint x, uint y)
truelight@0: {
tron@4231: 	uint z;
tron@4231: 	Slope tileh = GetTileSlope(tile, &z);
tron@3098: 
tron@3636: 	if (tileh == SLOPE_FLAT) return z;
tron@4231: 	if (GetRoadTileType(tile) == ROAD_TILE_NORMAL) {
tron@4231: 		uint f = GetRoadFoundation(tileh, GetRoadBits(tile));
tron@3060: 
tron@3286: 		if (f != 0) {
tron@4246: 			if (IsSteepSlope(tileh)) {
tron@4246: 				z += TILE_HEIGHT;
tron@4246: 			} else if (f < 15) {
tron@4246: 				return z + TILE_HEIGHT; // leveled foundation
tron@4246: 			}
tron@3286: 			tileh = _inclined_tileh[f - 15]; // inclined foundation
truelight@0: 		}
tron@4231: 		return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
tron@3286: 	} else {
tron@3645: 		return z + TILE_HEIGHT;
truelight@0: 	}
dominik@39: }
dominik@39: 
tron@3636: static Slope GetSlopeTileh_Road(TileIndex tile, Slope tileh)
dominik@39: {
tron@3636: 	if (tileh == SLOPE_FLAT) return SLOPE_FLAT;
rubidium@3793: 	if (GetRoadTileType(tile) == ROAD_TILE_NORMAL) {
tron@3418: 		uint f = GetRoadFoundation(tileh, GetRoadBits(tile));
tron@3098: 
tron@3418: 		if (f == 0) return tileh;
tron@3636: 		if (f < 15) return SLOPE_FLAT; // leveled foundation
tron@3286: 		return _inclined_tileh[f - 15]; // inclined foundation
tron@3286: 	} else {
tron@3636: 		return SLOPE_FLAT;
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: 
tron@4048: 
tron@4048: static const Roadside _town_road_types[][2] = {
tron@4048: 	{ ROADSIDE_GRASS,         ROADSIDE_GRASS },
tron@4048: 	{ ROADSIDE_PAVED,         ROADSIDE_PAVED },
tron@4048: 	{ ROADSIDE_PAVED,         ROADSIDE_PAVED },
tron@4048: 	{ ROADSIDE_TREES,         ROADSIDE_TREES },
tron@4048: 	{ ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
truelight@0: };
truelight@0: 
tron@4048: static const Roadside _town_road_types_2[][2] = {
tron@4048: 	{ ROADSIDE_GRASS,         ROADSIDE_GRASS },
tron@4048: 	{ ROADSIDE_PAVED,         ROADSIDE_PAVED },
tron@4048: 	{ ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
tron@4048: 	{ ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
tron@4048: 	{ ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
truelight@0: };
truelight@0: 
truelight@0: 
tron@1977: static void TileLoop_Road(TileIndex tile)
truelight@0: {
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: 
rubidium@3793: 	if (GetRoadTileType(tile) == ROAD_TILE_DEPOT) return;
truelight@0: 
celestar@3430: 	if (!HasRoadWorks(tile)) {
tron@4077: 		const Town* t = ClosestTownFromTile(tile, (uint)-1);
tron@4077: 		int grp = 0;
truelight@1280: 
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@4077: 					(DistanceManhattan(t->xy, tile) < 8 || grp != 0) &&
rubidium@3793: 					GetRoadTileType(tile) == ROAD_TILE_NORMAL && (GetRoadBits(tile) == ROAD_X || GetRoadBits(tile) == ROAD_Y)) {
tron@3636: 				if (GetTileSlope(tile, NULL) == SLOPE_FLAT && 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) */
tron@4048: 			const Roadside* new_rs = (_opt.landscape == LT_CANDY) ? _town_road_types_2[grp] : _town_road_types[grp];
tron@4048: 			Roadside cur_rs = GetRoadside(tile);
truelight@201: 
celestar@3430: 			/* We have our desired type, do nothing */
tron@4048: 			if (cur_rs == new_rs[0]) return;
celestar@3430: 
celestar@3430: 			/* We have the pre-type of the desired type, switch to the desired type */
tron@4048: 			if (cur_rs == new_rs[1]) {
tron@4048: 				cur_rs = new_rs[0];
celestar@3430: 			/* We have barren land, install the pre-type */
tron@4048: 			} else if (cur_rs == ROADSIDE_BARREN) {
tron@4048: 				cur_rs = new_rs[1];
celestar@3430: 			/* We're totally off limits, remove any installation and make barren land */
truelight@0: 			} else {
tron@4048: 				cur_rs = ROADSIDE_BARREN;
truelight@0: 			}
tron@4048: 			SetRoadside(tile, cur_rs);
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: static void ClickTile_Road(TileIndex tile)
truelight@0: {
bjarni@4638: 	if (GetRoadTileType(tile) == ROAD_TILE_DEPOT) ShowDepotWindow(tile, VEH_Road);
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:
rubidium@3793: 			switch (GetRoadTileType(tile)) {
rubidium@3793: 				case ROAD_TILE_NORMAL:
tron@4077: 					return HasRoadWorks(tile) ? 0 : _road_trackbits[GetRoadBits(tile)] * 0x101;
tron@3066: 
rubidium@3793: 				case ROAD_TILE_CROSSING: {
tron@4158: 					uint32 r = AxisToTrackBits(GetCrossingRoadAxis(tile)) * 0x101;
tron@3272: 
tron@3367: 					if (IsCrossingBarred(tile)) r *= 0x10001;
tron@3066: 					return r;
tron@3066: 				}
tron@3066: 
tron@3069: 				default:
rubidium@3793: 				case ROAD_TILE_DEPOT:
tron@4158: 					return AxisToTrackBits(DiagDirToAxis(GetRoadDepotDirection(tile))) * 0x101;
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);
rubidium@3793: 	switch (GetRoadTileType(tile)) {
rubidium@3793: 		case ROAD_TILE_CROSSING: td->str = STR_1818_ROAD_RAIL_LEVEL_CROSSING; break;
rubidium@3793: 		case ROAD_TILE_DEPOT: td->str = STR_1817_ROAD_VEHICLE_DEPOT; break;
tron@4048: 		default: td->str = _road_tile_strings[GetRoadside(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: {
rubidium@3793: 	switch (GetRoadTileType(tile)) {
rubidium@3793: 		case ROAD_TILE_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: 
rubidium@3793: 		case ROAD_TILE_DEPOT:
tron@4077: 			if (v->type == VEH_Road &&
tron@4077: 					v->u.road.frame == 11 &&
tron@4077: 					_roadveh_enter_depot_unk0[GetRoadDepotDirection(tile)] == v->u.road.state) {
bjarni@4725: 				VehicleEnterDepot(v);
tron@4077: 				return 4;
tron@3060: 			}
tron@3060: 			break;
tron@3060: 
tron@3060: 		default: break;
truelight@0: 	}
truelight@0: 	return 0;
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) {
Darkvater@4848: 		SetCrossingRoadOwner(tile, new_player == PLAYER_SPECTATOR ? OWNER_NONE : new_player);
truelight@0: 	}
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);
tron@4000: 	} else {
rubidium@3793: 		switch (GetRoadTileType(tile)) {
rubidium@3793: 			case ROAD_TILE_NORMAL:
tron@3060: 				SetTileOwner(tile, OWNER_NONE);
tron@3060: 				break;
tron@3060: 
rubidium@3793: 			case ROAD_TILE_CROSSING:
tron@3319: 				MakeRoadNormal(tile, GetCrossingRoadOwner(tile), GetCrossingRoadBits(tile), GetTownIndex(tile));
tron@3060: 				break;
tron@3060: 
tron@3069: 			default:
rubidium@3793: 			case ROAD_TILE_DEPOT:
tron@3491: 				DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
tron@3060: 				break;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: const TileTypeProcs _tile_type_road_procs = {
rubidium@4344: 	DrawTile_Road,           /* draw_tile_proc */
rubidium@4344: 	GetSlopeZ_Road,          /* get_slope_z_proc */
rubidium@4344: 	ClearTile_Road,          /* clear_tile_proc */
rubidium@4344: 	GetAcceptedCargo_Road,   /* get_accepted_cargo_proc */
rubidium@4344: 	GetTileDesc_Road,        /* get_tile_desc_proc */
rubidium@4344: 	GetTileTrackStatus_Road, /* get_tile_track_status_proc */
rubidium@4344: 	ClickTile_Road,          /* click_tile_proc */
rubidium@4344: 	AnimateTile_Road,        /* animate_tile_proc */
rubidium@4344: 	TileLoop_Road,           /* tile_loop_clear */
rubidium@4344: 	ChangeTileOwner_Road,    /* change_tile_owner_clear */
rubidium@4344: 	NULL,                    /* get_produced_cargo_proc */
rubidium@4344: 	VehicleEnter_Road,       /* vehicle_enter_tile_proc */
rubidium@4344: 	GetSlopeTileh_Road,      /* get_slope_tileh_proc */
truelight@0: };