diff --git a/src/tunnelbridge_cmd.c b/src/tunnelbridge_cmd.c deleted file mode 100644 --- a/src/tunnelbridge_cmd.c +++ /dev/null @@ -1,1316 +0,0 @@ -/* $Id$ */ - -/** @file tunnelbridge_cmd.c - * This file deals with tunnels and bridges (non-gui stuff) - * @todo seperate this file into two - */ - -#include "stdafx.h" -#include "openttd.h" -#include "bridge_map.h" -#include "rail_map.h" -#include "road_map.h" -#include "table/sprites.h" -#include "table/strings.h" -#include "functions.h" -#include "map.h" -#include "tile.h" -#include "tunnel_map.h" -#include "unmovable_map.h" -#include "vehicle.h" -#include "viewport.h" -#include "command.h" -#include "player.h" -#include "town.h" -#include "sound.h" -#include "variables.h" -#include "bridge.h" -#include "train.h" -#include "water_map.h" -#include "yapf/yapf.h" -#include "date.h" -#include "newgrf_sound.h" - -#include "table/bridge_land.h" - -const Bridge orig_bridge[] = { -/* - year of availablity - | minimum length - | | maximum length - | | | price - | | | | maximum speed - | | | | | sprite to use in GUI string with description - | | | | | | | */ - { 0, 0, 16, 80, 32, 0xA24 , STR_5012_WOODEN , NULL, 0 }, - { 0, 0, 2, 112, 48, 0xA26 | PALETTE_TO_STRUCT_RED , STR_5013_CONCRETE , NULL, 0 }, - { 1930, 0, 5, 144, 64, 0xA25 , STR_500F_GIRDER_STEEL , NULL, 0 }, - { 0, 2, 10, 168, 80, 0xA22 | PALETTE_TO_STRUCT_CONCRETE, STR_5011_SUSPENSION_CONCRETE, NULL, 0 }, - { 1930, 3, 16, 185, 96, 0xA22 , STR_500E_SUSPENSION_STEEL , NULL, 0 }, - { 1930, 3, 16, 192, 112, 0xA22 | PALETTE_TO_STRUCT_YELLOW , STR_500E_SUSPENSION_STEEL , NULL, 0 }, - { 1930, 3, 7, 224, 160, 0xA23 , STR_5010_CANTILEVER_STEEL , NULL, 0 }, - { 1930, 3, 8, 232, 208, 0xA23 | PALETTE_TO_STRUCT_BROWN , STR_5010_CANTILEVER_STEEL , NULL, 0 }, - { 1930, 3, 9, 248, 240, 0xA23 | PALETTE_TO_STRUCT_RED , STR_5010_CANTILEVER_STEEL , NULL, 0 }, - { 1930, 0, 2, 240, 256, 0xA27 , STR_500F_GIRDER_STEEL , NULL, 0 }, - { 1995, 2, 16, 255, 320, 0xA28 , STR_5014_TUBULAR_STEEL , NULL, 0 }, - { 2005, 2, 32, 380, 512, 0xA28 | PALETTE_TO_STRUCT_YELLOW , STR_5014_TUBULAR_STEEL , NULL, 0 }, - { 2010, 2, 32, 510, 608, 0xA28 | PALETTE_TO_STRUCT_GREY , STR_BRIDGE_TUBULAR_SILICON , NULL, 0 } -}; - -Bridge _bridge[MAX_BRIDGES]; - - -// calculate the price factor for building a long bridge. -// 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, -int CalcBridgeLenCostFactor(int x) -{ - int n; - int r; - - if (x < 2) return x; - x -= 2; - for (n = 0, r = 2;; n++) { - if (x <= n) return r + x * n; - r += n * n; - x -= n; - } -} - -#define M(x) (1 << (x)) -enum { - // foundation, whole tile is leveled up --> 3 corners raised - BRIDGE_FULL_LEVELED_FOUNDATION = M(SLOPE_WSE) | M(SLOPE_NWS) | M(SLOPE_ENW) | M(SLOPE_SEN), - // foundation, tile is partly leveled up --> 1 corner raised - BRIDGE_PARTLY_LEVELED_FOUNDATION = M(SLOPE_W) | M(SLOPE_S) | M(SLOPE_E) | M(SLOPE_N), - // no foundations (X,Y direction) - BRIDGE_NO_FOUNDATION = M(SLOPE_FLAT) | M(SLOPE_SW) | M(SLOPE_SE) | M(SLOPE_NW) | M(SLOPE_NE), - BRIDGE_HORZ_RAMP = (BRIDGE_PARTLY_LEVELED_FOUNDATION | BRIDGE_NO_FOUNDATION) & ~M(SLOPE_FLAT) -}; -#undef M - -static inline const PalSpriteID *GetBridgeSpriteTable(int index, byte table) -{ - const Bridge *bridge = &_bridge[index]; - assert(table < 7); - if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) { - return _bridge_sprite_table[index][table]; - } else { - return bridge->sprite_table[table]; - } -} - -static inline byte GetBridgeFlags(int index) { return _bridge[index].flags;} - - -/** Check the slope at the bridge ramps in three easy steps: - * - valid slopes without foundation - * - valid slopes with foundation - * - rest is invalid - */ -#define M(x) (1 << (x)) -static int32 CheckBridgeSlopeNorth(Axis axis, Slope tileh) -{ - uint32 valid; - - valid = M(SLOPE_FLAT) | (axis == AXIS_X ? M(SLOPE_NE) : M(SLOPE_NW)); - if (HASBIT(valid, tileh)) return 0; - - valid = - BRIDGE_FULL_LEVELED_FOUNDATION | M(SLOPE_N) | M(SLOPE_STEEP_N) | - (axis == AXIS_X ? M(SLOPE_E) | M(SLOPE_STEEP_E) : M(SLOPE_W) | M(SLOPE_STEEP_W)); - if (HASBIT(valid, tileh)) return _price.terraform; - - return CMD_ERROR; -} - -static int32 CheckBridgeSlopeSouth(Axis axis, Slope tileh) -{ - uint32 valid; - - valid = M(SLOPE_FLAT) | (axis == AXIS_X ? M(SLOPE_SW) : M(SLOPE_SE)); - if (HASBIT(valid, tileh)) return 0; - - valid = - BRIDGE_FULL_LEVELED_FOUNDATION | M(SLOPE_S) | M(SLOPE_STEEP_S) | - (axis == AXIS_X ? M(SLOPE_W) | M(SLOPE_STEEP_W) : M(SLOPE_E) | M(SLOPE_STEEP_E)); - if (HASBIT(valid, tileh)) return _price.terraform; - - return CMD_ERROR; -} -#undef M - - -uint32 GetBridgeLength(TileIndex begin, TileIndex end) -{ - int x1 = TileX(begin); - int y1 = TileY(begin); - int x2 = TileX(end); - int y2 = TileY(end); - - return abs(x2 + y2 - x1 - y1) - 1; -} - -bool CheckBridge_Stuff(byte bridge_type, uint bridge_len) -{ - const Bridge *b = &_bridge[bridge_type]; - uint max; // max possible length of a bridge (with patch 100) - - if (bridge_type >= MAX_BRIDGES) return false; - if (b->avail_year > _cur_year) return false; - - max = b->max_length; - if (max >= 16 && _patches.longbridges) max = 100; - - return b->min_length <= bridge_len && bridge_len <= max; -} - -/** Build a Bridge - * @param end_tile end tile - * @param p1 packed start tile coords (~ dx) - * @param p2 various bitstuffed elements - * - p2 = (bit 0- 7) - bridge type (hi bh) - * - p2 = (bit 8-..) - rail type. bit15 ((x>>8)&0x80) means road bridge. - */ -int32 CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2) -{ - int bridge_type; - TransportType transport; - RailType railtype; - uint x; - uint y; - uint sx; - uint sy; - TileIndex tile_start; - TileIndex tile_end; - Slope tileh_start; - Slope tileh_end; - uint z_start; - uint z_end; - TileIndex tile; - TileIndexDiff delta; - uint bridge_len; - Axis direction; - int32 cost, terraformcost, ret; - bool allow_on_slopes; - - SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); - - /* unpack parameters */ - bridge_type = GB(p2, 0, 8); - - if (p1 >= MapSize()) return CMD_ERROR; - - // type of bridge - if (HASBIT(p2, 15)) { - railtype = 0; - transport = TRANSPORT_ROAD; - } else { - if (!ValParamRailtype(GB(p2, 8, 8))) return CMD_ERROR; - railtype = GB(p2, 8, 8); - transport = TRANSPORT_RAIL; - } - - x = TileX(end_tile); - y = TileY(end_tile); - sx = TileX(p1); - sy = TileY(p1); - - /* check if valid, and make sure that (x,y) are smaller than (sx,sy) */ - if (x == sx) { - if (y == sy) return_cmd_error(STR_5008_CANNOT_START_AND_END_ON); - direction = AXIS_Y; - if (y > sy) uintswap(y,sy); - } else if (y == sy) { - direction = AXIS_X; - if (x > sx) uintswap(x,sx); - } else { - return_cmd_error(STR_500A_START_AND_END_MUST_BE_IN); - } - - /* set and test bridge length, availability */ - bridge_len = sx + sy - x - y - 1; - if (!CheckBridge_Stuff(bridge_type, bridge_len)) return_cmd_error(STR_5015_CAN_T_BUILD_BRIDGE_HERE); - - /* retrieve landscape height and ensure it's on land */ - tile_start = TileXY(x, y); - tile_end = TileXY(sx, sy); - if (IsClearWaterTile(tile_start) || IsClearWaterTile(tile_end)) { - return_cmd_error(STR_02A0_ENDS_OF_BRIDGE_MUST_BOTH); - } - - tileh_start = GetTileSlope(tile_start, &z_start); - tileh_end = GetTileSlope(tile_end, &z_end); - - if (IsSteepSlope(tileh_start)) z_start += TILE_HEIGHT; - if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh_start)) { - z_start += TILE_HEIGHT; - tileh_start = SLOPE_FLAT; - } - - if (IsSteepSlope(tileh_end)) z_end += TILE_HEIGHT; - if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh_end)) { - z_end += TILE_HEIGHT; - tileh_end = SLOPE_FLAT; - } - - if (z_start != z_end) return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED); - - // Towns are not allowed to use bridges on slopes. - allow_on_slopes = (!_is_old_ai_player - && _current_player != OWNER_TOWN && _patches.build_on_slopes); - - /* Try and clear the start landscape */ - - ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR); - if (CmdFailed(ret)) return ret; - cost = ret; - - terraformcost = CheckBridgeSlopeNorth(direction, tileh_start); - if (CmdFailed(terraformcost) || (terraformcost != 0 && !allow_on_slopes)) - return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION); - cost += terraformcost; - - /* Try and clear the end landscape */ - - ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR); - if (CmdFailed(ret)) return ret; - cost += ret; - - // false - end tile slope check - terraformcost = CheckBridgeSlopeSouth(direction, tileh_end); - if (CmdFailed(terraformcost) || (terraformcost != 0 && !allow_on_slopes)) - return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION); - cost += terraformcost; - - { - TileIndex Heads[] = {tile_start, tile_end}; - int i; - - for (i = 0; i < 2; i++) { - if (MayHaveBridgeAbove(Heads[i])) { - if (IsBridgeAbove(Heads[i])) { - TileIndex north_head = GetNorthernBridgeEnd(Heads[i]); - - if (direction == GetBridgeAxis(Heads[i])) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); - - if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) { - return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); - } - } - } - } - } - - /* do the drill? */ - if (flags & DC_EXEC) { - DiagDirection dir = AxisToDiagDir(direction); - - if (transport == TRANSPORT_RAIL) { - MakeRailBridgeRamp(tile_start, _current_player, bridge_type, dir, railtype); - MakeRailBridgeRamp(tile_end, _current_player, bridge_type, ReverseDiagDir(dir), railtype); - } else { - MakeRoadBridgeRamp(tile_start, _current_player, bridge_type, dir); - MakeRoadBridgeRamp(tile_end, _current_player, bridge_type, ReverseDiagDir(dir)); - } - MarkTileDirtyByTile(tile_start); - MarkTileDirtyByTile(tile_end); - } - - delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1)); - for (tile = tile_start + delta; tile != tile_end; tile += delta) { - uint z; - - if (GetTileSlope(tile, &z) != SLOPE_FLAT && z >= z_start) return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED); - - if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) { - /* Disallow crossing bridges for the time being */ - return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); - } - - switch (GetTileType(tile)) { - case MP_WATER: - if (!EnsureNoVehicle(tile)) return_cmd_error(STR_980E_SHIP_IN_THE_WAY); - if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below; - break; - - case MP_RAILWAY: - if (!IsPlainRailTile(tile)) goto not_valid_below; - break; - - case MP_STREET: - if (GetRoadTileType(tile) == ROAD_TILE_DEPOT) goto not_valid_below; - break; - - case MP_TUNNELBRIDGE: - if (IsTunnel(tile)) break; - if (direction == DiagDirToAxis(GetBridgeRampDirection(tile))) goto not_valid_below; - if (z_start < GetBridgeHeight(tile)) goto not_valid_below; - break; - - case MP_UNMOVABLE: - if (!IsOwnedLand(tile)) goto not_valid_below; - break; - - case MP_CLEAR: - if (IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); - break; - - default: -not_valid_below:; - /* try and clear the middle landscape */ - ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); - if (CmdFailed(ret)) return ret; - cost += ret; - break; - } - - if (flags & DC_EXEC) { - SetBridgeMiddle(tile, direction); - MarkTileDirtyByTile(tile); - } - } - - if (flags & DC_EXEC) { - Track track = AxisToTrack(direction); - SetSignalsOnBothDir(tile_start, track); - YapfNotifyTrackLayoutChange(tile_start, track); - } - - /* for human player that builds the bridge he gets a selection to choose from bridges (DC_QUERY_COST) - * It's unnecessary to execute this command every time for every bridge. So it is done only - * and cost is computed in "bridge_gui.c". For AI, Towns this has to be of course calculated - */ - if (!(flags & DC_QUERY_COST)) { - const Bridge *b = &_bridge[bridge_type]; - - bridge_len += 2; // begin and end tiles/ramps - - if (IsValidPlayer(_current_player) && !_is_old_ai_player) - bridge_len = CalcBridgeLenCostFactor(bridge_len); - - cost += (int64)bridge_len * _price.build_bridge * b->price >> 8; - } - - return cost; -} - - -/** Build Tunnel. - * @param tile start tile of tunnel - * @param p1 railtype, 0x200 for road tunnel - * @param p2 unused - */ -int32 CmdBuildTunnel(TileIndex start_tile, uint32 flags, uint32 p1, uint32 p2) -{ - TileIndexDiff delta; - TileIndex end_tile; - DiagDirection direction; - Slope start_tileh; - Slope end_tileh; - uint start_z; - uint end_z; - int32 cost; - int32 ret; - - _build_tunnel_endtile = 0; - - if (p1 != 0x200 && !ValParamRailtype(p1)) return CMD_ERROR; - - start_tileh = GetTileSlope(start_tile, &start_z); - - switch (start_tileh) { - case SLOPE_SW: direction = DIAGDIR_SW; break; - case SLOPE_SE: direction = DIAGDIR_SE; break; - case SLOPE_NW: direction = DIAGDIR_NW; break; - case SLOPE_NE: direction = DIAGDIR_NE; break; - default: return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL); - } - - ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); - if (CmdFailed(ret)) return ret; - - /* XXX - do NOT change 'ret' in the loop, as it is used as the price - * for the clearing of the entrance of the tunnel. Assigning it to - * cost before the loop will yield different costs depending on start- - * position, because of increased-cost-by-length: 'cost += cost >> 3' */ - cost = 0; - delta = TileOffsByDiagDir(direction); - end_tile = start_tile; - for (;;) { - end_tile += delta; - end_tileh = GetTileSlope(end_tile, &end_z); - - if (start_z == end_z) break; - - if (!_cheats.crossing_tunnels.value && IsTunnelInWay(end_tile, start_z)) { - return_cmd_error(STR_5003_ANOTHER_TUNNEL_IN_THE_WAY); - } - - cost += _price.build_tunnel; - cost += cost >> 3; // add a multiplier for longer tunnels - if (cost >= 400000000) cost = 400000000; - } - - /* Add the cost of the entrance */ - cost += _price.build_tunnel + ret; - - // if the command fails from here on we want the end tile to be highlighted - _build_tunnel_endtile = end_tile; - - // slope of end tile must be complementary to the slope of the start tile - if (end_tileh != ComplementSlope(start_tileh)) { - ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND); - if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND); - } else { - ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); - if (CmdFailed(ret)) return ret; - } - cost += _price.build_tunnel + ret; - - if (flags & DC_EXEC) { - if (GB(p1, 9, 1) == TRANSPORT_RAIL) { - MakeRailTunnel(start_tile, _current_player, direction, GB(p1, 0, 4)); - MakeRailTunnel(end_tile, _current_player, ReverseDiagDir(direction), GB(p1, 0, 4)); - UpdateSignalsOnSegment(start_tile, direction); - YapfNotifyTrackLayoutChange(start_tile, AxisToTrack(DiagDirToAxis(direction))); - } else { - MakeRoadTunnel(start_tile, _current_player, direction); - MakeRoadTunnel(end_tile, _current_player, ReverseDiagDir(direction)); - } - } - - return cost; -} - -TileIndex CheckTunnelBusy(TileIndex tile, uint *length) -{ - uint z = GetTileZ(tile); - DiagDirection dir = GetTunnelDirection(tile); - TileIndexDiff delta = TileOffsByDiagDir(dir); - uint len = 0; - TileIndex starttile = tile; - Vehicle *v; - - do { - tile += delta; - len++; - } while ( - !IsTunnelTile(tile) || - ReverseDiagDir(GetTunnelDirection(tile)) != dir || - GetTileZ(tile) != z - ); - - v = FindVehicleBetween(starttile, tile, z); - if (v != NULL) { - _error_message = v->type == VEH_Train ? - STR_5000_TRAIN_IN_TUNNEL : STR_5001_ROAD_VEHICLE_IN_TUNNEL; - return INVALID_TILE; - } - - if (length != NULL) *length = len; - return tile; -} - -static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile) -{ - /* Floods can remove anything as well as the scenario editor */ - if (_current_player == OWNER_WATER || _game_mode == GM_EDITOR) return true; - /* Obviously if the bridge/tunnel belongs to us, or no-one, we can remove it */ - if (CheckTileOwnership(tile) || IsTileOwner(tile, OWNER_NONE)) return true; - /* Otherwise we can only remove town-owned stuff with extra patch-settings, or cheat */ - if (IsTileOwner(tile, OWNER_TOWN) && (_patches.extra_dynamite || _cheats.magic_bulldozer.value)) return true; - return false; -} - -static int32 DoClearTunnel(TileIndex tile, uint32 flags) -{ - Town *t = NULL; - TileIndex endtile; - uint length; - - SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); - - if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR; - - endtile = CheckTunnelBusy(tile, &length); - if (endtile == INVALID_TILE) return CMD_ERROR; - - _build_tunnel_endtile = endtile; - - if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) { - t = ClosestTownFromTile(tile, (uint)-1); // town penalty rating - - /* Check if you are allowed to remove the tunnel owned by a town - * Removal depends on difficulty settings */ - if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) { - SetDParam(0, t->index); - return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES); - } - } - - if (flags & DC_EXEC) { - // We first need to request the direction before calling DoClearSquare - // else the direction is always 0.. dah!! ;) - DiagDirection dir = GetTunnelDirection(tile); - Track track; - - // Adjust the town's player rating. Do this before removing the tile owner info. - if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) - ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM); - - DoClearSquare(tile); - DoClearSquare(endtile); - UpdateSignalsOnSegment(tile, ReverseDiagDir(dir)); - UpdateSignalsOnSegment(endtile, dir); - track = AxisToTrack(DiagDirToAxis(dir)); - YapfNotifyTrackLayoutChange(tile, track); - YapfNotifyTrackLayoutChange(endtile, track); - } - return _price.clear_tunnel * (length + 1); -} - - -static bool IsVehicleOnBridge(TileIndex starttile, TileIndex endtile, uint z) -{ - const Vehicle *v; - FOR_ALL_VEHICLES(v) { - if ((v->tile == starttile || v->tile == endtile) && v->z_pos == z) { - _error_message = VehicleInTheWayErrMsg(v); - return true; - } - } - return false; -} - -static int32 DoClearBridge(TileIndex tile, uint32 flags) -{ - DiagDirection direction; - TileIndexDiff delta; - TileIndex endtile; - Town *t = NULL; - - SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); - - if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR; - - endtile = GetOtherBridgeEnd(tile); - - if (!EnsureNoVehicle(tile) || - !EnsureNoVehicle(endtile) || - IsVehicleOnBridge(tile, endtile, GetBridgeHeight(tile))) { - return CMD_ERROR; - } - - direction = GetBridgeRampDirection(tile); - delta = TileOffsByDiagDir(direction); - - if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) { - t = ClosestTownFromTile(tile, (uint)-1); // town penalty rating - - /* Check if you are allowed to remove the bridge owned by a town - * Removal depends on difficulty settings */ - if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) { - SetDParam(0, t->index); - return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES); - } - } - - if (flags & DC_EXEC) { - TileIndex c; - Track track; - - //checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until - // you have a "Poor" (0) town rating - if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) - ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM); - - DoClearSquare(tile); - DoClearSquare(endtile); - for (c = tile + delta; c != endtile; c += delta) { - ClearBridgeMiddle(c); - MarkTileDirtyByTile(c); - } - - UpdateSignalsOnSegment(tile, ReverseDiagDir(direction)); - UpdateSignalsOnSegment(endtile, direction); - track = AxisToTrack(DiagDirToAxis(direction)); - YapfNotifyTrackLayoutChange(tile, track); - YapfNotifyTrackLayoutChange(endtile, track); - } - - return (DistanceManhattan(tile, endtile) + 1) * _price.clear_bridge; -} - -static int32 ClearTile_TunnelBridge(TileIndex tile, byte flags) -{ - if (IsTunnel(tile)) { - if (flags & DC_AUTO) return_cmd_error(STR_5006_MUST_DEMOLISH_TUNNEL_FIRST); - return DoClearTunnel(tile, flags); - } else if (IsBridge(tile)) { // XXX Is this necessary? - if (flags & DC_AUTO) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); - return DoClearBridge(tile, flags); - } - - return CMD_ERROR; -} - -int32 DoConvertTunnelBridgeRail(TileIndex tile, RailType totype, bool exec) -{ - TileIndex endtile; - - if (IsTunnel(tile) && GetTunnelTransportType(tile) == TRANSPORT_RAIL) { - uint length; - - if (!CheckTileOwnership(tile)) return CMD_ERROR; - - if (GetRailType(tile) == totype) return CMD_ERROR; - - // 'hidden' elrails can't be downgraded to normal rail when elrails are disabled - if (_patches.disable_elrails && totype == RAILTYPE_RAIL && GetRailType(tile) == RAILTYPE_ELECTRIC) return CMD_ERROR; - - endtile = CheckTunnelBusy(tile, &length); - if (endtile == INVALID_TILE) return CMD_ERROR; - - if (exec) { - Track track; - SetRailType(tile, totype); - SetRailType(endtile, totype); - MarkTileDirtyByTile(tile); - MarkTileDirtyByTile(endtile); - - track = AxisToTrack(DiagDirToAxis(GetTunnelDirection(tile))); - YapfNotifyTrackLayoutChange(tile, track); - YapfNotifyTrackLayoutChange(endtile, track); - } - return (length + 1) * (_price.build_rail >> 1); - } else if (IsBridge(tile) && GetBridgeTransportType(tile) == TRANSPORT_RAIL) { - - if (!CheckTileOwnership(tile)) return CMD_ERROR; - - endtile = GetOtherBridgeEnd(tile); - - if (!EnsureNoVehicle(tile) || - !EnsureNoVehicle(endtile) || - IsVehicleOnBridge(tile, endtile, GetBridgeHeight(tile))) { - return CMD_ERROR; - } - - if (GetRailType(tile) == totype) return CMD_ERROR; - - if (exec) { - TileIndexDiff delta; - Track track; - - SetRailType(tile, totype); - SetRailType(endtile, totype); - MarkTileDirtyByTile(tile); - MarkTileDirtyByTile(endtile); - - track = AxisToTrack(DiagDirToAxis(GetBridgeRampDirection(tile))); - YapfNotifyTrackLayoutChange(tile, track); - YapfNotifyTrackLayoutChange(endtile, track); - - delta = TileOffsByDiagDir(GetBridgeRampDirection(tile)); - for (tile += delta; tile != endtile; tile += delta) { - MarkTileDirtyByTile(tile); // TODO encapsulate this into a function - } - } - - return (DistanceManhattan(tile, endtile) + 1) * (_price.build_rail >> 1); - } else { - return CMD_ERROR; - } -} - - -static void DrawBridgePillars(PalSpriteID image, const TileInfo* ti, Axis axis, uint type, int x, int y, int z) -{ - if (image != 0) { - bool drawfarpillar = !HASBIT(GetBridgeFlags(type), 0); - int back_height, front_height; - int i = z; - const byte *p; - - static const byte _tileh_bits[4][8] = { - { 2, 1, 8, 4, 16, 2, 0, 9 }, - { 1, 8, 4, 2, 2, 16, 9, 0 }, - { 4, 8, 1, 2, 16, 2, 0, 9 }, - { 2, 4, 8, 1, 2, 16, 9, 0 } - }; - - if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image); - - p = _tileh_bits[(image & 1) * 2 + (axis == AXIS_X ? 0 : 1)]; - front_height = ti->z + (ti->tileh & p[0] ? TILE_HEIGHT : 0); - back_height = ti->z + (ti->tileh & p[1] ? TILE_HEIGHT : 0); - - if (IsSteepSlope(ti->tileh)) { - if (!(ti->tileh & p[2])) front_height += TILE_HEIGHT; - if (!(ti->tileh & p[3])) back_height += TILE_HEIGHT; - } - - for (; z >= front_height || z >= back_height; z -= TILE_HEIGHT) { - /* HACK set height of the BB of pillars to 1, because the origin of the - * sprites is at the top - */ - if (z >= front_height) { // front facing pillar - AddSortableSpriteToDraw(image, x, y, p[4], p[5], 1, z); - } - - if (drawfarpillar && z >= back_height && z < i - TILE_HEIGHT) { // back facing pillar - AddSortableSpriteToDraw(image, x - p[6], y - p[7], p[4], p[5], 1, z); - } - } - } -} - -uint GetBridgeFoundation(Slope tileh, Axis axis) -{ - uint i; - - if (HASBIT(BRIDGE_FULL_LEVELED_FOUNDATION, tileh)) return tileh; - - // inclined sloped building - switch (tileh) { - case SLOPE_W: - case SLOPE_STEEP_W: i = 0; break; - case SLOPE_S: - case SLOPE_STEEP_S: i = 2; break; - case SLOPE_E: - case SLOPE_STEEP_E: i = 4; break; - case SLOPE_N: - case SLOPE_STEEP_N: i = 6; break; - default: return 0; - } - if (axis != AXIS_X) ++i; - return i + 15; -} - -/** - * Draws a tunnel of bridge tile. - * For tunnels, this is rather simple, as you only needa draw the entrance. - * Bridges are a bit more complex. base_offset is where the sprite selection comes into play - * and it works a bit like a bitmask.
For bridge heads: - *