tron@2186: /* $Id$ */ tron@2186: celestar@2262: /** @file tunnelbridge_cmd.c celestar@2262: * This file deals with tunnels and bridges (non-gui stuff) celestar@2262: * @todo seperate this file into two celestar@2262: */ celestar@2262: truelight@0: #include "stdafx.h" Darkvater@1891: #include "openttd.h" tron@3189: #include "bridge_map.h" tron@3187: #include "rail_map.h" tron@3144: #include "road_map.h" tron@1363: #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@3154: #include "tunnel_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" tron@337: #include "sound.h" tron@2159: #include "variables.h" celestar@2262: #include "bridge.h" bjarni@2676: #include "train.h" tron@3187: #include "water_map.h" KUDr@3900: #include "yapf/yapf.h" rubidium@4261: #include "date.h" truelight@0: ludde@2261: #include "table/bridge_land.h" ludde@2261: tron@3977: extern const byte _track_sloped_sprites[14]; tron@3977: extern const SpriteID _water_shore_sprites[15]; tron@3977: tron@3977: extern void DrawCanalWater(TileIndex tile); tron@3977: peter1138@2478: const Bridge orig_bridge[] = { celestar@2262: /* rubidium@4293: year of availablity rubidium@4293: | minimum length rubidium@4293: | | maximum length rubidium@4293: | | | price rubidium@4293: | | | | maximum speed rubidium@4293: | | | | | sprite to use in GUI string with description rubidium@4293: | | | | | | | */ rubidium@4293: { 0, 0, 16, 80, 32, 0xA24 , STR_5012_WOODEN , NULL, 0 }, rubidium@4293: { 0, 0, 2, 112, 48, 0xA26 | PALETTE_TO_STRUCT_RED , STR_5013_CONCRETE , NULL, 0 }, rubidium@4293: { 1930, 0, 5, 144, 64, 0xA25 , STR_500F_GIRDER_STEEL , NULL, 0 }, rubidium@4293: { 0, 2, 10, 168, 80, 0xA22 | PALETTE_TO_STRUCT_CONCRETE, STR_5011_SUSPENSION_CONCRETE, NULL, 0 }, rubidium@4293: { 1930, 3, 16, 185, 96, 0xA22 , STR_500E_SUSPENSION_STEEL , NULL, 0 }, rubidium@4293: { 1930, 3, 16, 192, 112, 0xA22 | PALETTE_TO_STRUCT_YELLOW , STR_500E_SUSPENSION_STEEL , NULL, 0 }, rubidium@4293: { 1930, 3, 7, 224, 160, 0xA23 , STR_5010_CANTILEVER_STEEL , NULL, 0 }, rubidium@4293: { 1930, 3, 8, 232, 208, 0xA23 | PALETTE_TO_STRUCT_BROWN , STR_5010_CANTILEVER_STEEL , NULL, 0 }, rubidium@4293: { 1930, 3, 9, 248, 240, 0xA23 | PALETTE_TO_STRUCT_RED , STR_5010_CANTILEVER_STEEL , NULL, 0 }, rubidium@4293: { 1930, 0, 2, 240, 256, 0xA27 , STR_500F_GIRDER_STEEL , NULL, 0 }, rubidium@4293: { 1995, 2, 16, 255, 320, 0xA28 , STR_5014_TUBULAR_STEEL , NULL, 0 }, rubidium@4293: { 2005, 2, 32, 380, 512, 0xA28 | PALETTE_TO_STRUCT_YELLOW , STR_5014_TUBULAR_STEEL , NULL, 0 }, rubidium@4293: { 2010, 2, 32, 510, 608, 0xA28 | PALETTE_TO_STRUCT_GREY , STR_BRIDGE_TUBULAR_SILICON , NULL, 0 } truelight@0: }; truelight@0: tron@2763: Bridge _bridge[MAX_BRIDGES]; tron@2763: tron@2763: truelight@0: // calculate the price factor for building a long bridge. truelight@0: // basically the cost delta is 1,1, 1, 2,2, 3,3,3, 4,4,4,4, 5,5,5,5,5, 6,6,6,6,6,6, 7,7,7,7,7,7,7, 8,8,8,8,8,8,8,8, truelight@0: int CalcBridgeLenCostFactor(int x) truelight@0: { tron@2639: int n; tron@2639: int r; tron@2639: truelight@0: if (x < 2) return x; truelight@0: x -= 2; tron@2639: for (n = 0, r = 2;; n++) { truelight@0: if (x <= n) return r + x * n; truelight@0: r += n * n; truelight@0: x -= n; truelight@0: } truelight@0: } truelight@0: tron@3636: #define M(x) (1 << (x)) truelight@0: enum { tron@3636: // foundation, whole tile is leveled up --> 3 corners raised tron@3636: BRIDGE_FULL_LEVELED_FOUNDATION = M(SLOPE_WSE) | M(SLOPE_NWS) | M(SLOPE_ENW) | M(SLOPE_SEN), tron@3636: // foundation, tile is partly leveled up --> 1 corner raised tron@3636: BRIDGE_PARTLY_LEVELED_FOUNDATION = M(SLOPE_W) | M(SLOPE_S) | M(SLOPE_E) | M(SLOPE_N), tron@3636: // no foundations (X,Y direction) tron@3636: BRIDGE_NO_FOUNDATION = M(SLOPE_FLAT) | M(SLOPE_SW) | M(SLOPE_SE) | M(SLOPE_NW) | M(SLOPE_NE), tron@3636: BRIDGE_HORZ_RAMP = (BRIDGE_PARTLY_LEVELED_FOUNDATION | BRIDGE_NO_FOUNDATION) & ~M(SLOPE_FLAT) truelight@0: }; tron@3636: #undef M truelight@0: peter1138@2478: static inline const PalSpriteID *GetBridgeSpriteTable(int index, byte table) peter1138@2478: { peter1138@2478: const Bridge *bridge = &_bridge[index]; peter1138@2478: assert(table < 7); peter1138@2478: if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) { peter1138@2478: return _bridge_sprite_table[index][table]; peter1138@2478: } else { peter1138@2478: return bridge->sprite_table[table]; peter1138@2478: } peter1138@2478: } peter1138@2478: Darkvater@3556: static inline byte GetBridgeFlags(int index) { return _bridge[index].flags;} celestar@2262: truelight@0: tron@4239: /** Check the slope at the bridge ramps in three easy steps: tron@4239: * - valid slopes without foundation tron@4239: * - valid slopes with foundation tron@4239: * - rest is invalid tron@4239: */ tron@4239: #define M(x) (1 << (x)) tron@4239: static int32 CheckBridgeSlopeNorth(Axis axis, Slope tileh) tron@4239: { tron@4239: uint32 valid; truelight@0: tron@4239: valid = M(SLOPE_FLAT) | (axis == AXIS_X ? M(SLOPE_NE) : M(SLOPE_NW)); tron@4239: if (HASBIT(valid, tileh)) return 0; truelight@0: tron@4239: valid = tron@4246: BRIDGE_FULL_LEVELED_FOUNDATION | M(SLOPE_N) | M(SLOPE_STEEP_N) | tron@4246: (axis == AXIS_X ? M(SLOPE_E) | M(SLOPE_STEEP_E) : M(SLOPE_W) | M(SLOPE_STEEP_W)); tron@4239: if (HASBIT(valid, tileh)) return _price.terraform; tron@2639: truelight@0: return CMD_ERROR; truelight@0: } truelight@0: tron@4239: static int32 CheckBridgeSlopeSouth(Axis axis, Slope tileh) tron@4239: { tron@4239: uint32 valid; tron@4239: tron@4239: valid = M(SLOPE_FLAT) | (axis == AXIS_X ? M(SLOPE_SW) : M(SLOPE_SE)); tron@4239: if (HASBIT(valid, tileh)) return 0; tron@4239: tron@4239: valid = tron@4246: BRIDGE_FULL_LEVELED_FOUNDATION | M(SLOPE_S) | M(SLOPE_STEEP_S) | tron@4246: (axis == AXIS_X ? M(SLOPE_W) | M(SLOPE_STEEP_W) : M(SLOPE_E) | M(SLOPE_STEEP_E)); tron@4239: if (HASBIT(valid, tileh)) return _price.terraform; tron@4239: tron@4239: return CMD_ERROR; tron@4239: } tron@4239: #undef M tron@4239: tron@4239: truelight@0: uint32 GetBridgeLength(TileIndex begin, TileIndex end) truelight@0: { tron@2639: int x1 = TileX(begin); tron@2639: int y1 = TileY(begin); tron@2639: int x2 = TileX(end); tron@2639: int y2 = TileY(end); truelight@193: tron@2639: return abs(x2 + y2 - x1 - y1) - 1; truelight@0: } truelight@0: tron@2639: bool CheckBridge_Stuff(byte bridge_type, uint bridge_len) truelight@0: { celestar@2262: const Bridge *b = &_bridge[bridge_type]; tron@2639: uint max; // max possible length of a bridge (with patch 100) truelight@0: Darkvater@1781: if (bridge_type >= MAX_BRIDGES) return false; celestar@2262: if (b->avail_year > _cur_year) return false; truelight@0: celestar@2262: max = b->max_length; tron@2639: if (max >= 16 && _patches.longbridges) max = 100; truelight@0: tron@2639: return b->min_length <= bridge_len && bridge_len <= max; truelight@0: } truelight@0: Darkvater@1775: /** Build a Bridge tron@3491: * @param end_tile end tile Darkvater@1775: * @param p1 packed start tile coords (~ dx) Darkvater@1775: * @param p2 various bitstuffed elements Darkvater@1775: * - p2 = (bit 0- 7) - bridge type (hi bh) Darkvater@1775: * - p2 = (bit 8-..) - rail type. bit15 ((x>>8)&0x80) means road bridge. truelight@0: */ tron@3491: int32 CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2) truelight@0: { truelight@0: int bridge_type; tron@3180: TransportType transport; tron@3180: RailType railtype; celestar@3853: uint x; celestar@3853: uint y; celestar@3853: uint sx; celestar@3853: uint sy; tron@3301: TileIndex tile_start; tron@3301: TileIndex tile_end; tron@3636: Slope tileh_start; tron@3636: Slope tileh_end; tron@3301: uint z_start; tron@3301: uint z_end; tron@3178: TileIndex tile; tron@3178: TileIndexDiff delta; tron@2639: uint bridge_len; tron@3977: uint odd_middle_part; tron@3157: Axis direction; tron@2639: uint i; truelight@0: int32 cost, terraformcost, ret; pasky@1585: bool allow_on_slopes; truelight@0: truelight@0: SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); truelight@193: truelight@0: /* unpack parameters */ tron@2140: bridge_type = GB(p2, 0, 8); truelight@193: tron@2934: if (p1 >= MapSize()) return CMD_ERROR; Darkvater@1775: truelight@0: // type of bridge tron@3180: if (HASBIT(p2, 15)) { truelight@0: railtype = 0; tron@3180: transport = TRANSPORT_ROAD; truelight@0: } else { tron@3180: if (!ValParamRailtype(GB(p2, 8, 8))) return CMD_ERROR; tron@3180: railtype = GB(p2, 8, 8); tron@3180: transport = TRANSPORT_RAIL; truelight@0: } truelight@0: tron@3493: x = TileX(end_tile); tron@3493: y = TileY(end_tile); tron@3493: sx = TileX(p1); tron@3493: sy = TileY(p1); truelight@0: truelight@0: /* check if valid, and make sure that (x,y) are smaller than (sx,sy) */ truelight@0: if (x == sx) { tron@2639: if (y == sy) return_cmd_error(STR_5008_CANNOT_START_AND_END_ON); tron@3157: direction = AXIS_Y; celestar@3854: if (y > sy) uintswap(y,sy); truelight@0: } else if (y == sy) { tron@3157: direction = AXIS_X; celestar@3854: if (x > sx) uintswap(x,sx); tron@2639: } else { truelight@0: return_cmd_error(STR_500A_START_AND_END_MUST_BE_IN); tron@2639: } truelight@0: Darkvater@1781: /* set and test bridge length, availability */ tron@4000: bridge_len = sx + sy - x - y - 1; Darkvater@1781: if (!CheckBridge_Stuff(bridge_type, bridge_len)) return_cmd_error(STR_5015_CAN_T_BUILD_BRIDGE_HERE); Darkvater@1781: truelight@0: /* retrieve landscape height and ensure it's on land */ tron@3493: tile_start = TileXY(x, y); tron@3493: tile_end = TileXY(sx, sy); tron@4000: if (IsClearWaterTile(tile_start) || IsClearWaterTile(tile_end)) { tron@4000: return_cmd_error(STR_02A0_ENDS_OF_BRIDGE_MUST_BOTH); tron@4000: } truelight@0: tron@3301: tileh_start = GetTileSlope(tile_start, &z_start); tron@3301: tileh_end = GetTileSlope(tile_end, &z_end); tron@3301: tron@4246: if (IsSteepSlope(tileh_start)) z_start += TILE_HEIGHT; tron@3636: if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh_start)) { tron@3645: z_start += TILE_HEIGHT; tron@3636: tileh_start = SLOPE_FLAT; truelight@0: } truelight@0: tron@4246: if (IsSteepSlope(tileh_end)) z_end += TILE_HEIGHT; tron@3636: if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh_end)) { tron@3645: z_end += TILE_HEIGHT; tron@3636: tileh_end = SLOPE_FLAT; truelight@0: } truelight@0: tron@3301: if (z_start != z_end) return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED); pasky@1585: pasky@1585: // Towns are not allowed to use bridges on slopes. truelight@2422: allow_on_slopes = (!_is_old_ai_player Darkvater@1781: && _current_player != OWNER_TOWN && _patches.build_on_slopes); pasky@1585: pasky@1585: /* Try and clear the start landscape */ pasky@1585: tron@3491: ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR); tron@3183: if (CmdFailed(ret)) return ret; truelight@0: cost = ret; truelight@0: tron@4239: terraformcost = CheckBridgeSlopeNorth(direction, tileh_start); tron@4239: if (CmdFailed(terraformcost) || (terraformcost != 0 && !allow_on_slopes)) truelight@0: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION); truelight@0: cost += terraformcost; truelight@0: pasky@1585: /* Try and clear the end landscape */ pasky@1585: tron@3491: ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR); tron@3183: if (CmdFailed(ret)) return ret; truelight@0: cost += ret; truelight@193: pasky@1585: // false - end tile slope check tron@4239: terraformcost = CheckBridgeSlopeSouth(direction, tileh_end); tron@4239: if (CmdFailed(terraformcost) || (terraformcost != 0 && !allow_on_slopes)) pasky@1585: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION); pasky@1585: cost += terraformcost; truelight@0: truelight@0: truelight@0: /* do the drill? */ truelight@0: if (flags & DC_EXEC) { tron@3209: DiagDirection dir = AxisToDiagDir(direction); truelight@0: tron@3209: if (transport == TRANSPORT_RAIL) { tron@3301: MakeRailBridgeRamp(tile_start, _current_player, bridge_type, dir, railtype); tron@3301: MakeRailBridgeRamp(tile_end, _current_player, bridge_type, ReverseDiagDir(dir), railtype); tron@3209: } else { tron@3301: MakeRoadBridgeRamp(tile_start, _current_player, bridge_type, dir); tron@3301: MakeRoadBridgeRamp(tile_end, _current_player, bridge_type, ReverseDiagDir(dir)); tron@3209: } tron@3301: MarkTileDirtyByTile(tile_start); tron@3301: MarkTileDirtyByTile(tile_end); truelight@0: } truelight@0: tron@3977: // position of middle part of the odd bridge (larger than MAX(i) otherwise) tron@3977: odd_middle_part = (bridge_len % 2) ? (bridge_len / 2) : bridge_len; tron@3977: tron@3301: tile = tile_start; tron@3178: delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1)); Darkvater@1781: for (i = 0; i != bridge_len; i++) { tron@3977: TransportType transport_under; tron@3977: Owner owner_under = OWNER_NONE; tron@3977: RailType rail_under = INVALID_RAILTYPE; tron@3178: uint z; truelight@0: tron@3178: tile += delta; truelight@0: tron@3977: if (GetTileSlope(tile, &z) != SLOPE_FLAT && z >= z_start) { tron@3977: return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED); tron@3183: } truelight@0: tron@3178: switch (GetTileType(tile)) { tron@3065: case MP_WATER: tron@3183: if (!EnsureNoVehicle(tile)) return_cmd_error(STR_980E_SHIP_IN_THE_WAY); tron@4000: if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below; tron@3977: transport_under = TRANSPORT_WATER; tron@3977: owner_under = GetTileOwner(tile); tron@3065: break; truelight@0: tron@3065: case MP_RAILWAY: tron@3977: if (GetRailTileType(tile) != RAIL_TILE_NORMAL || tron@4158: GetTrackBits(tile) != AxisToTrackBits(OtherAxis(direction))) { tron@3977: goto not_valid_below; tron@3977: } tron@3977: transport_under = TRANSPORT_RAIL; tron@3977: owner_under = GetTileOwner(tile); tron@3977: rail_under = GetRailType(tile); tron@3065: break; tron@3065: tron@3065: case MP_STREET: tron@4046: if (GetRoadTileType(tile) != ROAD_TILE_NORMAL) goto not_valid_below; tron@4046: if (HasRoadWorks(tile)) return_cmd_error(STR_ROAD_WORKS_IN_PROGRESS); tron@4046: if (GetRoadBits(tile) != (direction == AXIS_X ? ROAD_Y : ROAD_X)) { tron@3977: goto not_valid_below; tron@3977: } tron@3977: transport_under = TRANSPORT_ROAD; tron@3977: owner_under = GetTileOwner(tile); tron@3065: break; tron@3065: tron@3065: default: truelight@0: not_valid_below:; tron@3065: /* try and clear the middle landscape */ tron@3491: ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); tron@3183: if (CmdFailed(ret)) return ret; tron@3065: cost += ret; tron@3977: transport_under = INVALID_TRANSPORT; tron@3065: break; truelight@0: } truelight@0: truelight@0: if (flags & DC_EXEC) { tron@3977: uint piece; tron@3977: tron@3977: //bridges pieces sequence (middle parts) tron@3977: // bridge len 1: 0 tron@3977: // bridge len 2: 0 1 tron@3977: // bridge len 3: 0 4 1 tron@3977: // bridge len 4: 0 2 3 1 tron@3977: // bridge len 5: 0 2 5 3 1 tron@3977: // bridge len 6: 0 2 3 2 3 1 tron@3977: // bridge len 7: 0 2 3 4 2 3 1 tron@3977: // #0 - always as first, #1 - always as last (if len>1) tron@3977: // #2,#3 are to pair in order tron@3977: // for odd bridges: #5 is going in the bridge middle if on even position, #4 on odd (counting from 0) tron@3977: tron@3977: if (i == 0) { // first tile tron@3977: piece = 0; tron@3977: } else if (i == bridge_len - 1) { // last tile tron@3977: piece = 1; tron@3977: } else if (i == odd_middle_part) { // we are on the middle of odd bridge: #5 on even pos, #4 on odd tron@3977: piece = 5 - (i % 2); tron@3977: } else { tron@3977: // generate #2 and #3 in turns [i%2==0], after the middle of odd bridge tron@3977: // this sequence swaps [... XOR (i>odd_middle_part)], tron@3977: // for even bridges XOR does not apply as odd_middle_part==bridge_len tron@3977: piece = 2 + ((i % 2 == 0) ^ (i > odd_middle_part)); tron@3977: } tron@3977: tron@3977: if (transport == TRANSPORT_RAIL) { tron@3977: MakeRailBridgeMiddle(tile, bridge_type, piece, direction, railtype); tron@3977: } else { tron@3977: MakeRoadBridgeMiddle(tile, bridge_type, piece, direction); tron@3977: } tron@3977: switch (transport_under) { tron@3977: case TRANSPORT_RAIL: SetRailUnderBridge(tile, owner_under, rail_under); break; tron@3977: case TRANSPORT_ROAD: SetRoadUnderBridge(tile, owner_under); break; tron@3977: tron@3977: case TRANSPORT_WATER: tron@3977: if (owner_under == OWNER_WATER) { tron@3977: SetWaterUnderBridge(tile); tron@3977: } else { tron@3977: SetCanalUnderBridge(tile, owner_under); tron@3977: } tron@3977: break; tron@3977: tron@3977: default: SetClearUnderBridge(tile); break; tron@3977: } tron@3977: tron@3178: MarkTileDirtyByTile(tile); truelight@0: } truelight@0: } truelight@0: tron@4158: SetSignalsOnBothDir(tile_start, AxisToTrack(direction)); tron@4158: YapfNotifyTrackLayoutChange(tile_start, AxisToTrack(direction)); truelight@0: truelight@0: /* for human player that builds the bridge he gets a selection to choose from bridges (DC_QUERY_COST) truelight@0: It's unnecessary to execute this command every time for every bridge. So it is done only truelight@0: and cost is computed in "bridge_gui.c". For AI, Towns this has to be of course calculated truelight@0: */ truelight@193: if (!(flags & DC_QUERY_COST)) { celestar@2262: const Bridge *b = &_bridge[bridge_type]; celestar@2262: truelight@0: bridge_len += 2; // begin and end tiles/ramps truelight@0: truelight@2422: if (_current_player < MAX_PLAYERS && !_is_old_ai_player) truelight@0: bridge_len = CalcBridgeLenCostFactor(bridge_len); truelight@0: tron@3033: cost += (int64)bridge_len * _price.build_bridge * b->price >> 8; truelight@0: } truelight@0: truelight@0: return cost; truelight@0: } truelight@0: truelight@0: Darkvater@1782: /** Build Tunnel. tron@3491: * @param tile start tile of tunnel Darkvater@1784: * @param p1 railtype, 0x200 for road tunnel tron@2639: * @param p2 unused truelight@0: */ tron@3491: int32 CmdBuildTunnel(TileIndex start_tile, uint32 flags, uint32 p1, uint32 p2) truelight@0: { tron@3063: TileIndexDiff delta; tron@3063: TileIndex end_tile; tron@3063: DiagDirection direction; tron@3636: Slope start_tileh; tron@3636: Slope end_tileh; tron@3063: uint start_z; tron@3063: uint end_z; tron@3063: int32 cost; tron@3063: int32 ret; truelight@0: tron@3063: _build_tunnel_endtile = 0; truelight@0: Darkvater@1784: if (p1 != 0x200 && !ValParamRailtype(p1)) return CMD_ERROR; Darkvater@1782: tron@3063: start_tileh = GetTileSlope(start_tile, &start_z); truelight@0: tron@3063: switch (start_tileh) { tron@3636: case SLOPE_SW: direction = DIAGDIR_SW; break; tron@3636: case SLOPE_SE: direction = DIAGDIR_SE; break; tron@3636: case SLOPE_NW: direction = DIAGDIR_NW; break; tron@3636: case SLOPE_NE: direction = DIAGDIR_NE; break; tron@3063: default: return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL); tron@2639: } truelight@0: tron@3491: ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); tron@3063: if (CmdFailed(ret)) return ret; truelight@0: Darkvater@4273: /* XXX - do NOT change 'ret' in the loop, as it is used as the price Darkvater@4273: * for the clearing of the entrance of the tunnel. Assigning it to Darkvater@4273: * cost before the loop will yield different costs depending on start- Darkvater@4273: * position, because of increased-cost-by-length: 'cost += cost >> 3' */ Darkvater@4273: cost = 0; tron@3063: delta = TileOffsByDir(direction); tron@3063: end_tile = start_tile; tron@3063: for (;;) { tron@3063: end_tile += delta; tron@3063: end_tileh = GetTileSlope(end_tile, &end_z); truelight@0: tron@3063: if (start_z == end_z) break; tron@3063: tron@3156: if (!_cheats.crossing_tunnels.value && IsTunnelInWay(end_tile, start_z)) { tron@3156: return_cmd_error(STR_5003_ANOTHER_TUNNEL_IN_THE_WAY); tron@3063: } tron@3063: tron@3063: cost += _price.build_tunnel; Darkvater@4273: cost += cost >> 3; // add a multiplier for longer tunnels tron@3063: if (cost >= 400000000) cost = 400000000; truelight@0: } truelight@0: Darkvater@4273: /* Add the cost of the entrance */ Darkvater@4273: cost += _price.build_tunnel + ret; Darkvater@4273: tron@3063: // if the command fails from here on we want the end tile to be highlighted tron@3063: _build_tunnel_endtile = end_tile; tron@3063: tron@3063: // slope of end tile must be complementary to the slope of the start tile tron@3636: if (end_tileh != ComplementSlope(start_tileh)) { tron@3491: ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND); tron@3063: if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND); tron@3063: } else { tron@3491: ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); tron@3063: if (CmdFailed(ret)) return ret; tron@3063: } tron@3064: cost += _price.build_tunnel + ret; tron@3063: tron@3063: if (flags & DC_EXEC) { tron@3154: if (GB(p1, 9, 1) == TRANSPORT_RAIL) { tron@3154: MakeRailTunnel(start_tile, _current_player, direction, GB(p1, 0, 4)); tron@3154: MakeRailTunnel(end_tile, _current_player, ReverseDiagDir(direction), GB(p1, 0, 4)); KUDr@3900: UpdateSignalsOnSegment(start_tile, direction); tron@4158: YapfNotifyTrackLayoutChange(start_tile, AxisToTrack(DiagDirToAxis(direction))); tron@3154: } else { tron@3154: MakeRoadTunnel(start_tile, _current_player, direction); tron@3154: MakeRoadTunnel(end_tile, _current_player, ReverseDiagDir(direction)); tron@3154: } tron@3063: } tron@3063: tron@3063: return cost; truelight@0: } truelight@0: tron@1430: TileIndex CheckTunnelBusy(TileIndex tile, uint *length) truelight@0: { tron@1335: uint z = GetTileZ(tile); tron@3154: DiagDirection dir = GetTunnelDirection(tile); tron@3154: TileIndexDiff delta = TileOffsByDir(dir); tron@1430: uint len = 0; tron@1977: TileIndex starttile = tile; truelight@0: Vehicle *v; truelight@193: tron@1035: do { tron@1035: tile += delta; tron@1035: len++; tron@1035: } while ( tron@3184: !IsTunnelTile(tile) || tron@3154: ReverseDiagDir(GetTunnelDirection(tile)) != dir || tron@1035: GetTileZ(tile) != z tron@1035: ); truelight@0: tron@1430: v = FindVehicleBetween(starttile, tile, z); tron@1430: if (v != NULL) { tron@1430: _error_message = v->type == VEH_Train ? tron@1430: STR_5000_TRAIN_IN_TUNNEL : STR_5001_ROAD_VEHICLE_IN_TUNNEL; tron@1430: return INVALID_TILE; truelight@0: } truelight@193: tron@1430: if (length != NULL) *length = len; truelight@0: return tile; truelight@0: } truelight@0: tron@1977: static int32 DoClearTunnel(TileIndex tile, uint32 flags) truelight@0: { truelight@0: Town *t; Darkvater@1782: TileIndex endtile; tron@1430: uint length; truelight@0: truelight@0: SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); truelight@0: truelight@0: // in scenario editor you can always destroy tunnels truelight@0: if (_game_mode != GM_EDITOR && !CheckTileOwnership(tile)) { tron@1901: if (!(_patches.extra_dynamite || _cheats.magic_bulldozer.value) || !IsTileOwner(tile, OWNER_TOWN)) truelight@0: return CMD_ERROR; truelight@0: } truelight@0: truelight@0: endtile = CheckTunnelBusy(tile, &length); tron@1430: if (endtile == INVALID_TILE) return CMD_ERROR; truelight@0: truelight@0: _build_tunnel_endtile = endtile; truelight@193: truelight@0: t = ClosestTownFromTile(tile, (uint)-1); //needed for town rating penalty truelight@0: // check if you're allowed to remove the tunnel owned by a town truelight@0: // removal allowal depends on difficulty settings tron@1901: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) { tron@2958: if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) { tron@534: SetDParam(0, t->index); truelight@0: return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES); truelight@0: } truelight@0: } truelight@0: truelight@0: if (flags & DC_EXEC) { darkvater@38: // We first need to request the direction before calling DoClearSquare darkvater@38: // else the direction is always 0.. dah!! ;) tron@3157: DiagDirection dir = GetTunnelDirection(tile); tron@4158: Track track; peter1138@2870: peter1138@2870: // Adjust the town's player rating. Do this before removing the tile owner info. peter1138@2870: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) peter1138@2870: ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM); peter1138@2870: truelight@0: DoClearSquare(tile); truelight@0: DoClearSquare(endtile); tron@3172: UpdateSignalsOnSegment(tile, ReverseDiagDir(dir)); tron@3172: UpdateSignalsOnSegment(endtile, dir); tron@4158: track = AxisToTrack(DiagDirToAxis(dir)); tron@4158: YapfNotifyTrackLayoutChange(tile, track); tron@4158: YapfNotifyTrackLayoutChange(endtile, track); truelight@0: } tron@2639: return _price.clear_tunnel * (length + 1); truelight@0: } truelight@0: tron@3977: tron@3779: static uint GetBridgeHeightRamp(TileIndex t) tron@3779: { tron@4156: uint h; tron@4156: uint tileh = GetTileSlope(t, &h); tron@4156: uint f = GetBridgeFoundation(tileh, DiagDirToAxis(GetBridgeRampDirection(t))); tron@4156: tron@4156: // one height level extra if the ramp is on a flat foundation tron@4246: return tron@4246: h + TILE_HEIGHT + tron@4246: (IS_INT_INSIDE(f, 1, 15) ? TILE_HEIGHT : 0) + tron@4246: (IsSteepSlope(tileh) ? TILE_HEIGHT : 0); tron@3779: } tron@3779: tron@3779: tron@1977: static int32 DoClearBridge(TileIndex tile, uint32 flags) truelight@0: { tron@3227: DiagDirection direction; tron@3227: TileIndexDiff delta; tron@1977: TileIndex endtile; tron@3977: Vehicle *v; truelight@0: Town *t; truelight@193: truelight@0: SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); truelight@0: tron@3977: if (IsBridgeMiddle(tile)) { tron@3977: if (IsTransportUnderBridge(tile)) { tron@3977: /* delete transport route under the bridge */ tron@3977: int32 cost; tron@3977: tron@3977: // check if we own the tile below the bridge.. tron@3977: if (_current_player != OWNER_WATER && (!CheckTileOwnership(tile) || !EnsureNoVehicleOnGround(tile))) tron@3977: return CMD_ERROR; tron@3977: tron@3977: if (GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) { tron@3977: cost = _price.remove_rail; tron@3977: } else { tron@3977: cost = _price.remove_road * 2; tron@3977: } tron@3977: tron@3977: if (flags & DC_EXEC) { tron@3977: SetClearUnderBridge(tile); tron@3977: MarkTileDirtyByTile(tile); tron@3977: } tron@3977: return cost; peter1138@4087: } else if (IsWaterUnderBridge(tile) && !IsTileOwner(tile, OWNER_WATER)) { tron@3977: /* delete canal under bridge */ tron@3977: tron@3977: // check for vehicles under bridge tron@3977: if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR; tron@3977: tron@3977: if (flags & DC_EXEC) { tron@3977: SetClearUnderBridge(tile); tron@3977: MarkTileDirtyByTile(tile); tron@3977: } tron@3977: return _price.clear_water; tron@3977: } tron@3977: tron@3977: tile = GetSouthernBridgeEnd(tile); tron@3977: } tron@3977: truelight@0: // floods, scenario editor can always destroy bridges truelight@0: if (_current_player != OWNER_WATER && _game_mode != GM_EDITOR && !CheckTileOwnership(tile)) { tron@1901: if (!(_patches.extra_dynamite || _cheats.magic_bulldozer.value) || !IsTileOwner(tile, OWNER_TOWN)) truelight@0: return CMD_ERROR; truelight@0: } truelight@0: tron@3228: endtile = GetOtherBridgeEnd(tile); tron@3228: tron@2639: if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(endtile)) return CMD_ERROR; truelight@0: tron@3227: direction = GetBridgeRampDirection(tile); tron@3227: delta = TileOffsByDir(direction); tron@3227: tron@4000: /* Make sure there's no vehicle on the bridge tron@4000: * Omit tile and endtile, since these are already checked, thus solving the tron@4000: * problem of bridges over water, or higher bridges, where z is not increased, tron@4000: * eg level bridge tron@4000: */ tron@3977: v = FindVehicleBetween( tron@3977: tile + delta, tron@3977: endtile - delta, tron@4021: GetBridgeHeightRamp(tile) tron@3977: ); tron@3977: if (v != NULL) return_cmd_error(VehicleInTheWayErrMsg(v)); tron@3977: truelight@0: t = ClosestTownFromTile(tile, (uint)-1); //needed for town rating penalty truelight@193: // check if you're allowed to remove the bridge owned by a town. truelight@0: // removal allowal depends on difficulty settings tron@1901: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) { tron@2958: if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) return CMD_ERROR; truelight@0: } truelight@0: truelight@0: if (flags & DC_EXEC) { tron@3217: TileIndex c; tron@4158: Track track; truelight@0: celestar@1005: //checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until truelight@0: // you have a "Poor" (0) town rating tron@1901: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) celestar@1005: ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM); truelight@0: tron@3217: DoClearSquare(tile); tron@3217: DoClearSquare(endtile); tron@3217: for (c = tile + delta; c != endtile; c += delta) { tron@3977: if (IsTransportUnderBridge(c)) { tron@3977: if (GetTransportTypeUnderBridge(c) == TRANSPORT_RAIL) { tron@3977: MakeRailNormal(c, GetTileOwner(c), GetRailBitsUnderBridge(c), GetRailType(c)); tron@3977: } else { tron@3977: uint town = IsTileOwner(c, OWNER_TOWN) ? ClosestTownFromTile(c, (uint)-1)->index : 0; tron@3977: MakeRoadNormal(c, GetTileOwner(c), GetRoadBitsUnderBridge(c), town); tron@3977: } tron@3977: MarkTileDirtyByTile(c); tron@3977: } else { tron@3977: if (IsClearUnderBridge(c)) { tron@3977: DoClearSquare(c); tron@3977: } else { tron@3977: if (GetTileSlope(c, NULL) == SLOPE_FLAT) { peter1138@4087: if (IsTileOwner(c, OWNER_WATER)) { peter1138@4087: MakeWater(c); peter1138@4087: } else { peter1138@4087: MakeCanal(c, GetTileOwner(c)); peter1138@4087: } tron@3977: } else { tron@3977: MakeShore(c); tron@3977: } tron@3977: MarkTileDirtyByTile(c); tron@3977: } tron@3977: } tron@3217: } truelight@0: tron@3227: UpdateSignalsOnSegment(tile, ReverseDiagDir(direction)); tron@3227: UpdateSignalsOnSegment(endtile, direction); tron@4158: track = AxisToTrack(DiagDirToAxis(direction)); tron@4158: YapfNotifyTrackLayoutChange(tile, track); tron@4158: YapfNotifyTrackLayoutChange(endtile, track); truelight@0: } truelight@0: tron@3227: return (DistanceManhattan(tile, endtile) + 1) * _price.clear_bridge; truelight@0: } truelight@0: tron@1977: static int32 ClearTile_TunnelBridge(TileIndex tile, byte flags) tron@1977: { tron@3184: if (IsTunnel(tile)) { tron@2639: if (flags & DC_AUTO) return_cmd_error(STR_5006_MUST_DEMOLISH_TUNNEL_FIRST); truelight@0: return DoClearTunnel(tile, flags); tron@3234: } else if (IsBridge(tile)) { // XXX Is this necessary? tron@2639: if (flags & DC_AUTO) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); darkvater@1082: return DoClearBridge(tile, flags); tron@1109: } tron@1109: darkvater@1082: return CMD_ERROR; truelight@0: } truelight@0: Darkvater@3435: int32 DoConvertTunnelBridgeRail(TileIndex tile, RailType totype, bool exec) truelight@0: { Darkvater@1782: TileIndex endtile; truelight@0: tron@3184: if (IsTunnel(tile) && GetTunnelTransportType(tile) == TRANSPORT_RAIL) { tron@4000: uint length; tron@4000: truelight@0: if (!CheckTileOwnership(tile)) return CMD_ERROR; truelight@0: tron@3242: if (GetRailType(tile) == totype) return CMD_ERROR; truelight@193: truelight@0: endtile = CheckTunnelBusy(tile, &length); tron@1430: if (endtile == INVALID_TILE) return CMD_ERROR; truelight@0: truelight@0: if (exec) { tron@4158: Track track; tron@3242: SetRailType(tile, totype); tron@3242: SetRailType(endtile, totype); truelight@0: MarkTileDirtyByTile(tile); truelight@0: MarkTileDirtyByTile(endtile); KUDr@3900: tron@4158: track = AxisToTrack(DiagDirToAxis(GetTunnelDirection(tile))); KUDr@3900: YapfNotifyTrackLayoutChange(tile, track); tron@4158: YapfNotifyTrackLayoutChange(endtile, track); truelight@0: } truelight@0: return (length + 1) * (_price.build_rail >> 1); tron@3977: } else if (IsBridge(tile) && tron@3977: IsBridgeMiddle(tile) && tron@3977: IsTransportUnderBridge(tile) && tron@3977: GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) { tron@3977: // only check for train under bridge tron@3977: if (!CheckTileOwnership(tile) || !EnsureNoVehicleOnGround(tile)) tron@3977: return CMD_ERROR; tron@3977: tron@3977: if (GetRailType(tile) == totype) return CMD_ERROR; tron@3977: tron@3977: if (exec) { tron@3977: SetRailType(tile, totype); tron@3977: MarkTileDirtyByTile(tile); tron@3977: tron@4158: YapfNotifyTrackLayoutChange(tile, GetRailUnderBridge(tile)); tron@3977: } tron@3977: return _price.build_rail >> 1; tron@3977: } else if (IsBridge(tile) && IsBridgeRamp(tile) && GetBridgeTransportType(tile) == TRANSPORT_RAIL) { tron@3977: TileIndexDiff delta; tron@3977: int32 cost; truelight@0: truelight@0: if (!CheckTileOwnership(tile)) return CMD_ERROR; truelight@0: tron@3215: endtile = GetOtherBridgeEnd(tile); truelight@0: tron@4172: if (!EnsureNoVehicle(tile) || tron@4172: !EnsureNoVehicle(endtile) || tron@4172: FindVehicleBetween(tile, endtile, GetBridgeHeightRamp(tile)) != NULL) { tron@3881: return_cmd_error(STR_8803_TRAIN_IN_THE_WAY); celestar@1073: } celestar@1073: tron@3242: if (GetRailType(tile) == totype) return CMD_ERROR; tron@3213: tron@3218: if (exec) { tron@4158: Track track; tron@3242: SetRailType(tile, totype); tron@3242: SetRailType(endtile, totype); tron@3218: MarkTileDirtyByTile(tile); tron@3218: MarkTileDirtyByTile(endtile); KUDr@3900: tron@4158: track = AxisToTrack(DiagDirToAxis(GetBridgeRampDirection(tile))); tron@3977: YapfNotifyTrackLayoutChange(tile, track); tron@4158: YapfNotifyTrackLayoutChange(endtile, track); tron@3977: } tron@3977: cost = 2 * (_price.build_rail >> 1); tron@3977: delta = TileOffsByDir(GetBridgeRampDirection(tile)); tron@3977: for (tile += delta; tile != endtile; tile += delta) { tron@3977: if (exec) { tron@3977: SetRailTypeOnBridge(tile, totype); tron@3977: MarkTileDirtyByTile(tile); truelight@0: } tron@3977: cost += _price.build_rail >> 1; tron@3213: } truelight@0: tron@3977: return cost; tron@4000: } else { truelight@0: return CMD_ERROR; tron@4000: } truelight@0: } truelight@0: truelight@0: tron@3977: // fast routine for getting the height of a middle bridge tile. 'tile' MUST be a middle bridge tile. tron@3977: uint GetBridgeHeight(TileIndex t) tron@3977: { tron@3977: return GetBridgeHeightRamp(GetSouthernBridgeEnd(t)); tron@3977: } tron@3977: tron@4246: static const byte _bridge_foundations[][31] = { tron@4246: // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 _S _W _N _E tron@4246: { 0,16,18, 3,20, 5, 0, 7,22, 0,10,11,12,13,14, 0, 0, 0, 0, 0, 0, 0, 0,18, 0, 0, 0,16, 0,22,20 }, tron@4246: { 0,15,17, 0,19, 5, 6, 7,21, 9,10,11, 0,13,14, 0, 0, 0, 0, 0, 0, 0, 0,17, 0, 0, 0,15, 0,21,19 } tron@3977: }; tron@3977: tron@3977: extern const byte _road_sloped_sprites[14]; tron@3977: tron@3977: static void DrawBridgePillars(PalSpriteID image, const TileInfo *ti, int x, int y, int z) truelight@0: { truelight@0: if (image != 0) { tron@3977: Axis axis = GetBridgeAxis(ti->tile); tron@3977: bool drawfarpillar = !HASBIT(GetBridgeFlags(GetBridgeType(ti->tile)), 0); Darkvater@3556: int back_height, front_height; Darkvater@3556: int i = z; truelight@0: const byte *p; truelight@0: truelight@0: static const byte _tileh_bits[4][8] = { tron@4191: { 2, 1, 8, 4, 16, 2, 0, 9 }, tron@4191: { 1, 8, 4, 2, 2, 16, 9, 0 }, tron@4191: { 4, 8, 1, 2, 16, 2, 0, 9 }, tron@4191: { 2, 4, 8, 1, 2, 16, 9, 0 } truelight@0: }; truelight@0: celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image); tron@333: tron@3234: p = _tileh_bits[(image & 1) * 2 + (axis == AXIS_X ? 0 : 1)]; tron@3645: front_height = ti->z + (ti->tileh & p[0] ? TILE_HEIGHT : 0); tron@3645: back_height = ti->z + (ti->tileh & p[1] ? TILE_HEIGHT : 0); celestar@2262: tron@3636: if (IsSteepSlope(ti->tileh)) { tron@3645: if (!(ti->tileh & p[2])) front_height += TILE_HEIGHT; tron@3645: if (!(ti->tileh & p[3])) back_height += TILE_HEIGHT; truelight@0: } truelight@0: tron@3645: for (; z >= front_height || z >= back_height; z -= TILE_HEIGHT) { tron@4191: /* HACK set height of the BB of pillars to 1, because the origin of the tron@4191: * sprites is at the top tron@4191: */ Darkvater@3556: if (z >= front_height) { // front facing pillar tron@4191: AddSortableSpriteToDraw(image, x, y, p[4], p[5], 1, z); tron@2952: } Darkvater@3556: tron@3645: if (drawfarpillar && z >= back_height && z < i - TILE_HEIGHT) { // back facing pillar tron@4191: AddSortableSpriteToDraw(image, x - p[6], y - p[7], p[4], p[5], 1, z); tron@2952: } truelight@0: } truelight@0: } truelight@0: } truelight@0: tron@3636: uint GetBridgeFoundation(Slope tileh, Axis axis) tron@2639: { tron@3878: uint i; tron@3878: tron@3636: if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh)) return tileh; truelight@0: truelight@0: // inclined sloped building 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@3017: } tron@3878: if (axis != AXIS_X) ++i; tron@3878: return i + 15; truelight@0: } truelight@0: celestar@2536: /** celestar@2536: * Draws a tunnel of bridge tile. celestar@2536: * For tunnels, this is rather simple, as you only needa draw the entrance. celestar@2536: * Bridges are a bit more complex. base_offset is where the sprite selection comes into play celestar@2536: * and it works a bit like a bitmask.
For bridge heads: celestar@2536: *