tron@2186: /* $Id$ */
tron@2186:
belugas@6117: /** @file tunnelbridge_cmd.cpp
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"
rubidium@8119: #include "tile_cmd.h"
maedhros@6343: #include "landscape.h"
tron@3154: #include "tunnel_map.h"
celestar@5385: #include "unmovable_map.h"
rubidium@8224: #include "viewport_func.h"
rubidium@8116: #include "command_func.h"
truelight@0: #include "town.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"
peter1138@4656: #include "newgrf_sound.h"
rubidium@7582: #include "autoslope.h"
belugas@7849: #include "transparency.h"
smatz@8083: #include "tunnelbridge_map.h"
rubidium@8114: #include "strings_func.h"
rubidium@8140: #include "date_func.h"
rubidium@8131: #include "functions.h"
rubidium@8144: #include "vehicle_func.h"
rubidium@8157: #include "sound_func.h"
smatz@8238: #include "signal_func.h"
smatz@8398: #include "tunnelbridge.h"
smatz@8590: #include "player_base.h"
rubidium@8786: #include "engine_func.h"
peter1138@9070: #include "engine_base.h"
rubidium@8962: #include "economy_func.h"
rubidium@8962: #include "rail.h"
rubidium@8965: #include "cheat_func.h"
smatz@9154: #include "elrail_func.h"
rubidium@9126: #include "landscape_type.h"
truelight@0:
rubidium@8264: #include "table/sprites.h"
rubidium@8264: #include "table/strings.h"
rubidium@8264: #include "table/bridge_land.h"
ludde@2261:
belugas@8535: BridgeSpec _bridge[MAX_BRIDGES];
rubidium@8973: TileIndex _build_tunnel_endtile;
tron@2763:
belugas@8489: /** Reset the data been eventually changed by the grf loaded. */
belugas@8489: void ResetBridges()
belugas@8489: {
belugas@8489: /* First, free sprite table data */
belugas@8532: for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
belugas@8489: if (_bridge[i].sprite_table != NULL) {
belugas@9642: for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
belugas@8489: free(_bridge[i].sprite_table);
belugas@8489: }
belugas@8489: }
belugas@8489:
belugas@8489: /* Then, wipe out current bidges */
belugas@8489: memset(&_bridge, 0, sizeof(_bridge));
belugas@8489: /* And finally, reinstall default data */
belugas@8489: memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
belugas@8489: }
tron@2763:
belugas@6422: /** calculate the price factor for building a long bridge.
belugas@6422: * 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,
belugas@6422: */
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:
frosch@8371: Foundation GetBridgeFoundation(Slope tileh, Axis axis)
frosch@8371: {
frosch@8371: if ((tileh == SLOPE_FLAT) ||
frosch@8371: (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
frosch@8371: (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
frosch@8371:
frosch@8371: return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
frosch@8371: }
truelight@0:
frosch@8379: /**
frosch@8379: * Determines if the track on a bridge ramp is flat or goes up/down.
frosch@8379: *
frosch@8379: * @param tileh Slope of the tile under the bridge head
frosch@8379: * @param axis Orientation of bridge
frosch@8379: * @return true iff the track is flat.
frosch@8379: */
frosch@8379: bool HasBridgeFlatRamp(Slope tileh, Axis axis)
frosch@8379: {
frosch@8379: ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
frosch@8379: /* If the foundation slope is flat the bridge has a non-flat ramp and vice versa. */
frosch@8379: return (tileh != SLOPE_FLAT);
frosch@8379: }
frosch@8379:
belugas@9642: static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
peter1138@2478: {
belugas@8535: const BridgeSpec *bridge = GetBridgeSpec(index);
belugas@9642: assert(table < BRIDGE_PIECE_INVALID);
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:
truelight@0:
frosch@8371: /**
frosch@8371: * Determines the foundation for the north bridge head, and tests if the resulting slope is valid.
frosch@8371: *
frosch@8371: * @param axis Axis of the bridge
frosch@8371: * @param tileh Slope of the tile under the north bridge head; returns slope on top of foundation
frosch@8371: * @param z TileZ corresponding to tileh, gets modified as well
frosch@8371: * @return Error or cost for bridge foundation
tron@4239: */
frosch@8371: static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
tron@4239: {
frosch@8371: Foundation f = GetBridgeFoundation(*tileh, axis);
frosch@8371: *z += ApplyFoundationToSlope(f, tileh);
truelight@0:
frosch@8371: Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
frosch@8371: if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
tron@2639:
frosch@8371: if (f == FOUNDATION_NONE) return CommandCost();
frosch@8371:
frosch@8371: return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
truelight@0: }
truelight@0:
frosch@8371: /**
frosch@8371: * Determines the foundation for the south bridge head, and tests if the resulting slope is valid.
frosch@8371: *
frosch@8371: * @param axis Axis of the bridge
frosch@8371: * @param tileh Slope of the tile under the south bridge head; returns slope on top of foundation
frosch@8371: * @param z TileZ corresponding to tileh, gets modified as well
frosch@8371: * @return Error or cost for bridge foundation
frosch@8371: */
frosch@8371: static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
tron@4239: {
frosch@8371: Foundation f = GetBridgeFoundation(*tileh, axis);
frosch@8371: *z += ApplyFoundationToSlope(f, tileh);
tron@4239:
frosch@8371: Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
frosch@8371: if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
tron@4239:
frosch@8371: if (f == FOUNDATION_NONE) return CommandCost();
frosch@8371:
frosch@8371: return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
tron@4239: }
tron@4239:
rubidium@9578: bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, uint32 flags)
truelight@0: {
rubidium@9578: if (flags & DC_QUERY_COST) {
smatz@9596: return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
rubidium@9578: }
truelight@0:
Darkvater@1781: if (bridge_type >= MAX_BRIDGES) return false;
rubidium@9578:
rubidium@9578: const BridgeSpec *b = GetBridgeSpec(bridge_type);
celestar@2262: if (b->avail_year > _cur_year) return false;
truelight@0:
rubidium@9578: uint max = b->max_length;
rubidium@9413: if (max >= 16 && _settings_game.construction.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
belugas@6422: * @param flags type of operation
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)
rubidium@6661: * - p2 = (bit 8-..) - rail type or road types.
rubidium@6661: * - p2 = (bit 15 ) - set means road bridge.
truelight@0: */
rubidium@6943: CommandCost CmdBuildBridge(TileIndex end_tile, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
belugas@8532: BridgeType bridge_type;
belugas@8530: RailType railtype = INVALID_RAILTYPE;
belugas@8530: RoadTypes roadtypes = ROADTYPES_NONE;
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@3157: Axis direction;
rubidium@8230: CommandCost cost(EXPENSES_CONSTRUCTION);
frosch@8371: CommandCost ret;
maedhros@5930: bool replace_bridge = false;
belugas@8532: BridgeType replaced_bridge_type;
belugas@8530: TransportType transport_type;
truelight@0:
truelight@0: /* unpack parameters */
tron@2140: bridge_type = GB(p2, 0, 8);
truelight@193:
belugas@8531: if (p1 >= MapSize()) return CMD_ERROR;
belugas@8531:
belugas@8530: transport_type = (TransportType)GB(p2, 15, 2);
Darkvater@1775:
belugas@6422: /* type of bridge */
belugas@8530: switch (transport_type) {
belugas@8530: case TRANSPORT_ROAD:
belugas@8530: roadtypes = (RoadTypes)GB(p2, 8, 3);
belugas@8530: if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_player, roadtypes)) return CMD_ERROR;
belugas@8530: break;
belugas@8530:
belugas@8530: case TRANSPORT_RAIL:
belugas@8530: railtype = (RailType)GB(p2, 8, 8);
belugas@8530: if (!ValParamRailtype(railtype)) return CMD_ERROR;
belugas@8530: break;
belugas@8531:
rubidium@9490: case TRANSPORT_WATER:
rubidium@9490: break;
rubidium@9490:
belugas@8531: default:
rubidium@9490: /* Airports don't have tunnels. */
belugas@8531: return CMD_ERROR;
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;
tron@6106: if (y > sy) Swap(y, sy);
truelight@0: } else if (y == sy) {
tron@3157: direction = AXIS_X;
tron@6106: if (x > sx) Swap(x, sx);
tron@2639: } else {
truelight@0: return_cmd_error(STR_500A_START_AND_END_MUST_BE_IN);
tron@2639: }
truelight@0:
tron@4000: bridge_len = sx + sy - x - y - 1;
rubidium@9490: if (transport_type != TRANSPORT_WATER) {
rubidium@9490: /* set and test bridge length, availability */
rubidium@9578: if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_5015_CAN_T_BUILD_BRIDGE_HERE);
rubidium@9490: }
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);
peter1138@8471: if (IsWaterTile(tile_start) || IsWaterTile(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:
frosch@8371: CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
belugas@8625: CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
truelight@0:
rubidium@7682: if (z_start != z_end) return_cmd_error(STR_BRIDGEHEADS_NOT_SAME_HEIGHT);
pasky@1585:
maedhros@5930: if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
maedhros@5930: GetOtherBridgeEnd(tile_start) == tile_end &&
smatz@8083: GetTunnelBridgeTransportType(tile_start) == transport_type) {
maedhros@5930: /* Replace a current bridge. */
truelight@193:
maedhros@5930: /* If this is a railway bridge, make sure the railtypes match. */
maedhros@5930: if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
maedhros@5930: return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
maedhros@5930: }
truelight@0:
maedhros@5930: /* Do not replace town bridges with lower speed bridges. */
maedhros@5930: if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
belugas@8491: GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
maedhros@5930: Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
maedhros@5930:
maedhros@5930: if (t == NULL) {
maedhros@5930: return CMD_ERROR;
maedhros@5930: } else {
maedhros@5930: SetDParam(0, t->index);
maedhros@5930: return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
maedhros@5930: }
maedhros@5930: }
maedhros@5930:
maedhros@5930: /* Do not replace the bridge with the same bridge type. */
maedhros@5930: if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
maedhros@5930: return_cmd_error(STR_1007_ALREADY_BUILT);
maedhros@5930: }
maedhros@5930:
maedhros@5930: /* Do not allow replacing another player's bridges. */
maedhros@5930: if (!IsTileOwner(tile_start, _current_player) && !IsTileOwner(tile_start, OWNER_TOWN)) {
maedhros@5930: return_cmd_error(STR_1024_AREA_IS_OWNED_BY_ANOTHER);
maedhros@5930: }
maedhros@5930:
rubidium@6950: cost.AddCost((bridge_len + 1) * _price.clear_bridge); // The cost of clearing the current bridge.
maedhros@5930: replace_bridge = true;
maedhros@5930: replaced_bridge_type = GetBridgeType(tile_start);
rubidium@6708:
rubidium@6708: /* Do not remove road types when upgrading a bridge */
rubidium@6708: roadtypes |= GetRoadTypes(tile_start);
maedhros@5930: } else {
maedhros@5930: /* Build a new bridge. */
maedhros@5930:
rubidium@9491: bool allow_on_slopes = (!_is_old_ai_player && _settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
frosch@8371:
maedhros@5930: /* Try and clear the start landscape */
maedhros@5930: ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
maedhros@5930: if (CmdFailed(ret)) return ret;
maedhros@5930: cost = ret;
maedhros@5930:
frosch@8371: if (CmdFailed(terraform_cost_north) || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
maedhros@5930: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
frosch@8371: cost.AddCost(terraform_cost_north);
maedhros@5930:
maedhros@5930: /* Try and clear the end landscape */
maedhros@5930: ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
maedhros@5930: if (CmdFailed(ret)) return ret;
rubidium@6950: cost.AddCost(ret);
maedhros@5930:
belugas@6422: /* false - end tile slope check */
frosch@8371: if (CmdFailed(terraform_cost_south) || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
maedhros@5930: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
frosch@8371: cost.AddCost(terraform_cost_south);
rubidium@9491:
rubidium@9491: if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
maedhros@5930: }
maedhros@5930:
maedhros@5930: if (!replace_bridge) {
celestar@5385: TileIndex Heads[] = {tile_start, tile_end};
celestar@5385: int i;
celestar@5385:
celestar@5385: for (i = 0; i < 2; i++) {
celestar@5385: if (MayHaveBridgeAbove(Heads[i])) {
celestar@5385: if (IsBridgeAbove(Heads[i])) {
celestar@5385: TileIndex north_head = GetNorthernBridgeEnd(Heads[i]);
celestar@5385:
celestar@5385: if (direction == GetBridgeAxis(Heads[i])) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5385:
celestar@5385: if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
celestar@5385: return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5385: }
celestar@5385: }
celestar@5385: }
celestar@5385: }
celestar@5385: }
truelight@0:
truelight@0: /* do the drill? */
truelight@0: if (flags & DC_EXEC) {
tron@3209: DiagDirection dir = AxisToDiagDir(direction);
maedhros@5930: Owner owner = (replace_bridge && IsTileOwner(tile_start, OWNER_TOWN)) ? OWNER_TOWN : _current_player;
truelight@0:
belugas@8530: switch (transport_type) {
belugas@8530: case TRANSPORT_RAIL:
belugas@8625: MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
belugas@8530: MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
belugas@8530: break;
belugas@8530:
belugas@8530: case TRANSPORT_ROAD:
belugas@8625: MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
belugas@8530: MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
belugas@8530: break;
belugas@8531:
rubidium@9490: case TRANSPORT_WATER:
rubidium@9490: MakeAqueductBridgeRamp(tile_start, owner, dir);
rubidium@9490: MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
rubidium@9490: break;
rubidium@9490:
belugas@8531: default:
belugas@8531: NOT_REACHED();
belugas@8531: break;
tron@3209: }
tron@3301: MarkTileDirtyByTile(tile_start);
tron@3301: MarkTileDirtyByTile(tile_end);
truelight@0: }
truelight@0:
tron@3178: delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
celestar@5385: for (tile = tile_start + delta; tile != tile_end; tile += delta) {
frosch@8370: if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_BRIDGE_TOO_LOW_FOR_TERRAIN);
truelight@0:
maedhros@5930: if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && !replace_bridge) {
celestar@5385: /* Disallow crossing bridges for the time being */
celestar@5385: return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
tron@3183: }
truelight@0:
tron@3178: switch (GetTileType(tile)) {
tron@3065: case MP_WATER:
peter1138@8471: if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
tron@3065: break;
truelight@0:
tron@3065: case MP_RAILWAY:
celestar@5385: if (!IsPlainRailTile(tile)) goto not_valid_below;
tron@3065: break;
tron@3065:
rubidium@7370: case MP_ROAD:
frosch@8563: if (IsRoadDepot(tile)) goto not_valid_below;
celestar@5385: break;
celestar@5385:
celestar@5385: case MP_TUNNELBRIDGE:
celestar@5385: if (IsTunnel(tile)) break;
maedhros@5930: if (replace_bridge) break;
smatz@8083: if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
celestar@5385: if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
celestar@5385: break;
celestar@5385:
celestar@5385: case MP_UNMOVABLE:
celestar@5385: if (!IsOwnedLand(tile)) goto not_valid_below;
celestar@5385: break;
celestar@5385:
celestar@5385: case MP_CLEAR:
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;
rubidium@6950: cost.AddCost(ret);
tron@3065: break;
truelight@0: }
truelight@0:
truelight@0: if (flags & DC_EXEC) {
celestar@5385: SetBridgeMiddle(tile, direction);
tron@3178: MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: }
truelight@0:
belugas@8530: if (flags & DC_EXEC && transport_type == TRANSPORT_RAIL) {
Darkvater@5561: Track track = AxisToTrack(direction);
smatz@8306: AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_player);
Darkvater@5561: YapfNotifyTrackLayoutChange(tile_start, track);
Darkvater@5554: }
truelight@0:
rubidium@4434: /* for human player that builds the bridge he gets a selection to choose from bridges (DC_QUERY_COST)
rubidium@4434: * It's unnecessary to execute this command every time for every bridge. So it is done only
rubidium@4434: * and cost is computed in "bridge_gui.c". For AI, Towns this has to be of course calculated
rubidium@4434: */
rubidium@9652: if (!(flags & DC_QUERY_COST) || (IsValidPlayerID(_current_player) && GetPlayer(_current_player)->is_ai)) {
rubidium@4434: bridge_len += 2; // begin and end tiles/ramps
truelight@0:
rubidium@9652: if (IsValidPlayerID(_current_player) && !_is_old_ai_player)
truelight@0: bridge_len = CalcBridgeLenCostFactor(bridge_len);
truelight@0:
belugas@8491: cost.AddCost((int64)bridge_len * _price.build_bridge * GetBridgeSpec(bridge_type)->price >> 8);
rubidium@9492:
rubidium@9492: /* Aqueducts are a little more expensive. */
rubidium@9492: if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price.clear_water);
truelight@0: }
truelight@0:
truelight@0: return cost;
truelight@0: }
truelight@0:
truelight@0:
Darkvater@1782: /** Build Tunnel.
belugas@6484: * @param start_tile start tile of tunnel
belugas@6422: * @param flags type of operation
rubidium@6661: * @param p1 railtype or roadtypes. bit 9 set means road tunnel
tron@2639: * @param p2 unused
truelight@0: */
rubidium@6943: CommandCost 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;
belugas@8549: TransportType transport_type = (TransportType)GB(p1, 9, 1);
tron@3063: uint start_z;
tron@3063: uint end_z;
rubidium@8230: CommandCost cost(EXPENSES_CONSTRUCTION);
rubidium@6943: CommandCost ret;
truelight@0:
tron@3063: _build_tunnel_endtile = 0;
belugas@8549: if (transport_type == TRANSPORT_RAIL) {
rubidium@8236: if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
truelight@7857: } else {
truelight@7857: const RoadTypes rts = (RoadTypes)GB(p1, 0, 3);
truelight@7857: if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_player, rts)) return CMD_ERROR;
rubidium@6661: }
Darkvater@1782:
tron@3063: start_tileh = GetTileSlope(start_tile, &start_z);
frosch@8413: direction = GetInclinedSlopeDirection(start_tileh);
frosch@8413: if (direction == INVALID_DIAGDIR) return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL);
truelight@0:
peter1138@8471: if (IsWaterTile(start_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
peter1138@8385:
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' */
rubidium@6950:
Darkvater@4559: delta = TileOffsByDiagDir(direction);
rubidium@7002: DiagDirection tunnel_in_way_dir;
smatz@9224: if (DiagDirToAxis(direction) == AXIS_Y) {
rubidium@7002: tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
rubidium@7002: } else {
rubidium@7002: tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
rubidium@7002: }
rubidium@7002:
tron@3063: end_tile = start_tile;
rubidium@7095:
rubidium@7095: /** Tile shift coeficient. Will decrease for very long tunnels to avoid exponential growth of price*/
rubidium@7095: int tiles_coef = 3;
rubidium@7095: /** Number of tiles from start of tunnel */
rubidium@7095: int tiles = 0;
truelight@7308: /** Number of tiles at which the cost increase coefficient per tile is halved */
truelight@7308: int tiles_bump = 25;
rubidium@7095:
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:
rubidium@7002: if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
tron@3156: return_cmd_error(STR_5003_ANOTHER_TUNNEL_IN_THE_WAY);
tron@3063: }
tron@3063:
rubidium@7095: tiles++;
truelight@7308: if (tiles == tiles_bump) {
truelight@7308: tiles_coef++;
truelight@7308: tiles_bump *= 2;
truelight@7308: }
rubidium@7095:
rubidium@6950: cost.AddCost(_price.build_tunnel);
rubidium@7095: cost.AddCost(cost.GetCost() >> tiles_coef); // add a multiplier for longer tunnels
truelight@0: }
truelight@0:
Darkvater@4273: /* Add the cost of the entrance */
rubidium@6950: cost.AddCost(_price.build_tunnel);
rubidium@6950: cost.AddCost(ret);
Darkvater@4273:
belugas@6422: /* if the command fails from here on we want the end tile to be highlighted */
tron@3063: _build_tunnel_endtile = end_tile;
tron@3063:
peter1138@8471: if (IsWaterTile(end_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
peter1138@8385:
belugas@6422: /* slope of end tile must be complementary to the slope of the start tile */
tron@3636: if (end_tileh != ComplementSlope(start_tileh)) {
rubidium@7677: /* Check if there is a structure on the terraformed tile. Do not add the cost, that will be done by the terraforming */
rubidium@7677: ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
rubidium@7677: if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND);
rubidium@7042:
rubidium@7677: ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
rubidium@7677: 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: }
rubidium@6950: cost.AddCost(_price.build_tunnel);
rubidium@6950: cost.AddCost(ret);
tron@3063:
tron@3063: if (flags & DC_EXEC) {
belugas@8549: if (transport_type == TRANSPORT_RAIL) {
rubidium@5587: MakeRailTunnel(start_tile, _current_player, direction, (RailType)GB(p1, 0, 4));
rubidium@5587: MakeRailTunnel(end_tile, _current_player, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
smatz@8306: AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_player);
smatz@9224: YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
tron@3154: } else {
rubidium@6663: MakeRoadTunnel(start_tile, _current_player, direction, (RoadTypes)GB(p1, 0, 3));
rubidium@6663: MakeRoadTunnel(end_tile, _current_player, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 3));
tron@3154: }
tron@3063: }
tron@3063:
tron@3063: return cost;
truelight@0: }
truelight@0:
truelight@0:
Darkvater@5009: static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
Darkvater@5009: {
Darkvater@5009: /* Floods can remove anything as well as the scenario editor */
Darkvater@5009: if (_current_player == OWNER_WATER || _game_mode == GM_EDITOR) return true;
Darkvater@5009: /* Obviously if the bridge/tunnel belongs to us, or no-one, we can remove it */
Darkvater@5009: if (CheckTileOwnership(tile) || IsTileOwner(tile, OWNER_NONE)) return true;
Darkvater@5009: /* Otherwise we can only remove town-owned stuff with extra patch-settings, or cheat */
rubidium@9413: if (IsTileOwner(tile, OWNER_TOWN) && (_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return true;
Darkvater@5009: return false;
Darkvater@5009: }
Darkvater@5009:
rubidium@6943: static CommandCost DoClearTunnel(TileIndex tile, uint32 flags)
truelight@0: {
Darkvater@5009: Town *t = NULL;
Darkvater@1782: TileIndex endtile;
truelight@0:
Darkvater@5009: if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
truelight@0:
smatz@8072: endtile = GetOtherTunnelEnd(tile);
smatz@8072:
smatz@8072: if (GetVehicleTunnelBridge(tile, endtile) != NULL) return CMD_ERROR;
truelight@0:
truelight@0: _build_tunnel_endtile = endtile;
truelight@193:
tron@1901: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
Darkvater@5009: t = ClosestTownFromTile(tile, (uint)-1); // town penalty rating
Darkvater@5009:
Darkvater@5009: /* Check if you are allowed to remove the tunnel owned by a town
Darkvater@5009: * Removal depends on difficulty settings */
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:
glx@8232: /* checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until
glx@8232: * you have a "Poor" (0) town rating */
glx@8232: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
glx@8232: ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM);
glx@8232: }
glx@8232:
truelight@0: if (flags & DC_EXEC) {
smatz@8300: if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
smatz@8300: /* We first need to request values before calling DoClearSquare */
smatz@8300: DiagDirection dir = GetTunnelBridgeDirection(tile);
smatz@8300: Owner owner = GetTileOwner(tile);
peter1138@2870:
smatz@8300: DoClearSquare(tile);
smatz@8300: DoClearSquare(endtile);
smatz@8297:
smatz@8300: /* cannot use INVALID_DIAGDIR for signal update because the tunnel doesn't exist anymore */
belugas@8625: AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
belugas@8625: AddSideToSignalBuffer(endtile, dir, owner);
smatz@8297:
smatz@9224: Track track = DiagDirToDiagTrack(dir);
belugas@8625: YapfNotifyTrackLayoutChange(tile, track);
smatz@8297: YapfNotifyTrackLayoutChange(endtile, track);
smatz@8300: } else {
smatz@8300: DoClearSquare(tile);
smatz@8300: DoClearSquare(endtile);
smatz@8297: }
truelight@0: }
smatz@8398: return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_tunnel * (GetTunnelBridgeLength(tile, endtile) + 2));
truelight@0: }
truelight@0:
tron@3977:
rubidium@6943: static CommandCost DoClearBridge(TileIndex tile, uint32 flags)
truelight@0: {
tron@3227: DiagDirection direction;
tron@3227: TileIndexDiff delta;
tron@1977: TileIndex endtile;
Darkvater@5009: Town *t = NULL;
truelight@193:
Darkvater@5009: if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
truelight@0:
tron@3228: endtile = GetOtherBridgeEnd(tile);
tron@3228:
smatz@8072: if (GetVehicleTunnelBridge(tile, endtile) != NULL) return CMD_ERROR;
truelight@0:
smatz@8083: direction = GetTunnelBridgeDirection(tile);
Darkvater@4559: delta = TileOffsByDiagDir(direction);
tron@3227:
tron@1901: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
Darkvater@5009: t = ClosestTownFromTile(tile, (uint)-1); // town penalty rating
Darkvater@5009:
Darkvater@5009: /* Check if you are allowed to remove the bridge owned by a town
Darkvater@5009: * Removal depends on difficulty settings */
Darkvater@5009: if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
Darkvater@5009: SetDParam(0, t->index);
Darkvater@5009: return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
Darkvater@5009: }
truelight@0: }
truelight@0:
glx@8232: /* checks if the owner is town then decrease town rating by RATING_TUNNEL_BRIDGE_DOWN_STEP until
glx@8232: * you have a "Poor" (0) town rating */
glx@8232: if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
glx@8232: ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM);
glx@8232: }
glx@8232:
truelight@0: if (flags & DC_EXEC) {
smatz@8297: /* read this value before actual removal of bridge */
smatz@8297: bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
smatz@8300: Owner owner = GetTileOwner(tile);
smatz@8589: uint height = GetBridgeHeight(tile);
truelight@0:
tron@3217: DoClearSquare(tile);
tron@3217: DoClearSquare(endtile);
smatz@8297: for (TileIndex c = tile + delta; c != endtile; c += delta) {
smatz@8589: /* do not let trees appear from 'nowhere' after removing bridge */
smatz@8589: if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
smatz@8589: uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
smatz@8589: if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
smatz@8589: }
smatz@8297: ClearBridgeMiddle(c);
celestar@5385: MarkTileDirtyByTile(c);
tron@3217: }
truelight@0:
smatz@8297: if (rail) {
smatz@8300: /* cannot use INVALID_DIAGDIR for signal update because the bridge doesn't exist anymore */
belugas@8625: AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
belugas@8625: AddSideToSignalBuffer(endtile, direction, owner);
smatz@8297:
smatz@9224: Track track = DiagDirToDiagTrack(direction);
belugas@8625: YapfNotifyTrackLayoutChange(tile, track);
smatz@8297: YapfNotifyTrackLayoutChange(endtile, track);
smatz@8297: }
truelight@0: }
truelight@0:
smatz@8398: return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price.clear_bridge);
truelight@0: }
truelight@0:
rubidium@6943: static CommandCost 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);
smatz@8390: } else { // IsBridge(tile)
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:
celestar@6368: /**
rubidium@7728: * Draws the pillars under high bridges.
rubidium@7728: *
rubidium@7728: * @param psid Image and palette of a bridge pillar.
rubidium@7728: * @param ti #TileInfo of current bridge-middle-tile.
rubidium@7728: * @param axis Orientation of bridge.
rubidium@7728: * @param type Bridge type.
rubidium@7728: * @param x Sprite X position of front pillar.
rubidium@7728: * @param y Sprite Y position of front pillar.
rubidium@7728: * @param z_bridge Absolute height of bridge bottom.
rubidium@7728: */
smatz@9498: static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo* ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
truelight@0: {
smatz@8806: /* Do not draw bridge pillars if they are invisible */
smatz@8806: if (IsInvisibilitySet(TO_BRIDGES)) return;
smatz@8806:
peter1138@5668: SpriteID image = psid->sprite;
smatz@8806:
truelight@0: if (image != 0) {
rubidium@7728: /* "side" specifies the side the pillars stand on.
rubidium@7728: * The length of the pillars is then set to the height of the bridge over the corners of this edge.
rubidium@7728: *
rubidium@7728: * axis==AXIS_X axis==AXIS_Y
rubidium@7728: * side==false SW NW
rubidium@7728: * side==true NE SE
rubidium@7728: *
rubidium@7728: * I have no clue, why this was done this way.
rubidium@7728: */
skidd13@7928: bool side = HasBit(image, 0);
celestar@2262:
rubidium@7728: /* "dir" means the edge the pillars stand on */
rubidium@7728: DiagDirection dir = AxisToDiagDir(axis);
rubidium@7728: if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
truelight@0:
rubidium@7728: /* Determine ground height under pillars */
rubidium@7728: int front_height = ti->z;
rubidium@7728: int back_height = ti->z;
rubidium@7728: GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
rubidium@7728:
rubidium@7728: /* x and y size of bounding-box of pillars */
rubidium@7728: int w = (axis == AXIS_X ? 16 : 2);
rubidium@7728: int h = (axis == AXIS_X ? 2 : 16);
rubidium@7728: /* sprite position of back facing pillar */
rubidium@7728: int x_back = x - (axis == AXIS_X ? 0 : 9);
rubidium@7728: int y_back = y - (axis == AXIS_X ? 9 : 0);
rubidium@7728:
rubidium@7728: for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
rubidium@7728: /* Draw front facing pillar */
rubidium@7728: if (cur_z >= front_height) {
belugas@7849: AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
tron@2952: }
Darkvater@3556:
rubidium@7728: /* Draw back facing pillar, but not the highest part directly under the bridge-floor */
rubidium@7728: if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
belugas@7849: AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
tron@2952: }
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0:
celestar@2536: /**
rubidium@6691: * Draws the trambits over an already drawn (lower end) of a bridge.
rubidium@6691: * @param x the x of the bridge
rubidium@6691: * @param y the y of the bridge
rubidium@6691: * @param z the z of the bridge
rubidium@6691: * @param offset number representing whether to level or sloped and the direction
rubidium@6691: * @param overlay do we want to still see the road?
smatz@8806: * @param head are we drawing bridge head?
rubidium@6691: */
smatz@8806: static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
rubidium@6691: {
rubidium@6691: static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
rubidium@7249: static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
rubidium@6691: static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
rubidium@6691:
rubidium@7601: static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
rubidium@7601: static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
rubidium@7601: static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
rubidium@7601: static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
rubidium@6699:
rubidium@7601: /* The sprites under the vehicles are drawn as SpriteCombine. StartSpriteCombine() has already been called
rubidium@7601: * The bounding boxes here are the same as for bridge front/roof */
smatz@8806: if (head || !IsInvisibilitySet(TO_BRIDGES)) {
smatz@8865: AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
smatz@8865: x, y, size_x[offset], size_y[offset], 0x28, z,
smatz@8865: !head && IsTransparencySet(TO_BRIDGES));
smatz@8806: }
smatz@8806:
smatz@8806: /* Do not draw catenary if it is set invisible */
smatz@8865: if (!IsInvisibilitySet(TO_CATENARY)) {
smatz@8865: AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
smatz@8865: x, y, size_x[offset], size_y[offset], 0x28, z,
smatz@8865: IsTransparencySet(TO_CATENARY));
smatz@8865: }
rubidium@7601:
rubidium@7601: /* Start a new SpriteCombine for the front part */
rubidium@7601: EndSpriteCombine();
rubidium@7601: StartSpriteCombine();
rubidium@7601:
rubidium@6691: /* For sloped sprites the bounding box needs to be higher, as the pylons stop on a higher point */
smatz@8865: if (!IsInvisibilitySet(TO_CATENARY)) {
smatz@8865: AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
smatz@8865: x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
smatz@8865: IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
smatz@8865: }
rubidium@6691: }
rubidium@6691:
rubidium@6691: /**
rubidium@4549: * Draws a tunnel of bridge tile.
rubidium@4549: * For tunnels, this is rather simple, as you only needa draw the entrance.
rubidium@4549: * Bridges are a bit more complex. base_offset is where the sprite selection comes into play
rubidium@4549: * and it works a bit like a bitmask. For bridge heads:
belugas@6422: * @param ti TileInfo of the structure to draw
rubidium@4549: *
- Bit 0: direction
rubidium@4549: * - Bit 1: northern or southern heads
rubidium@4549: * - Bit 2: Set if the bridge head is sloped
rubidium@4549: * - Bit 3 and more: Railtype Specific subset
rubidium@4549: *
rubidium@4549: * Please note that in this code, "roads" are treated as railtype 1, whilst the real railtypes are 0, 2 and 3
rubidium@4549: */
truelight@0: static void DrawTile_TunnelBridge(TileInfo *ti)
truelight@0: {
peter1138@5668: SpriteID image;
belugas@8549: TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
belugas@8548: DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
truelight@193:
tron@3184: if (IsTunnel(ti->tile)) {
rubidium@7601: /* Front view of tunnel bounding boxes:
rubidium@7601: *
rubidium@7601: * 122223 <- BB_Z_SEPARATOR
rubidium@7601: * 1 3
rubidium@7601: * 1 3 1,3 = empty helper BB
rubidium@7601: * 1 3 2 = SpriteCombine of tunnel-roof and catenary (tram & elrail)
rubidium@7601: *
rubidium@7601: */
rubidium@7601:
rubidium@7601: static const int _tunnel_BB[4][12] = {
rubidium@7601: /* tunnnel-roof | Z-separator | tram-catenary
rubidium@7601: * w h bb_x bb_y| x y w h |bb_x bb_y w h */
rubidium@7601: { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 }, // NE
rubidium@7601: { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 }, // SE
rubidium@7601: { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 }, // SW
rubidium@7601: { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 }, // NW
rubidium@7601: };
belugas@8548: const int *BB_data = _tunnel_BB[tunnelbridge_direction];
rubidium@7601:
rubidium@7601: bool catenary = false;
rubidium@7601:
belugas@8549: if (transport_type == TRANSPORT_RAIL) {
tron@3242: image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
tron@2511: } else {
tron@2511: image = SPR_TUNNEL_ENTRY_REAR_ROAD;
tron@2511: }
truelight@0:
smatz@8083: if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
truelight@0:
belugas@8548: image += tunnelbridge_direction * 2;
peter1138@5668: DrawGroundSprite(image, PAL_NONE);
belugas@8549: if (transport_type == TRANSPORT_ROAD) {
rubidium@6691: RoadTypes rts = GetRoadTypes(ti->tile);
rubidium@6691:
skidd13@7928: if (HasBit(rts, ROADTYPE_TRAM)) {
rubidium@6691: static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
rubidium@6691:
belugas@8548: DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
rubidium@7601:
smatz@8806: /* Do not draw wires if they are invisible */
smatz@8806: if (!IsInvisibilitySet(TO_CATENARY)) {
smatz@8806: catenary = true;
smatz@8806: StartSpriteCombine();
smatz@8806: AddSortableSpriteToDraw(SPR_TRAMWAY_TUNNEL_WIRES + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, BB_data[10], BB_data[11], TILE_HEIGHT, ti->z, IsTransparencySet(TO_CATENARY), BB_data[8], BB_data[9], BB_Z_SEPARATOR);
smatz@8806: }
rubidium@6691: }
smatz@9154: } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
rubidium@7601: catenary = true;
rubidium@7601: StartSpriteCombine();
rubidium@7601: DrawCatenaryOnTunnel(ti);
rubidium@6663: }
truelight@0:
rubidium@7601: AddSortableSpriteToDraw(image + 1, PAL_NONE, ti->x + TILE_SIZE - 1, ti->y + TILE_SIZE - 1, BB_data[0], BB_data[1], TILE_HEIGHT, ti->z, false, BB_data[2], BB_data[3], BB_Z_SEPARATOR);
rubidium@7601:
rubidium@7601: if (catenary) EndSpriteCombine();
rubidium@7601:
rubidium@7601: /* Add helper BB for sprite sorting, that separate the tunnel from things beside of it */
rubidium@7601: AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x , ti->y , BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
rubidium@7601: AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x + BB_data[4], ti->y + BB_data[5], BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
rubidium@7601:
celestar@5385: DrawBridgeMiddle(ti);
smatz@8390: } else { // IsBridge(ti->tile)
peter1138@5668: const PalSpriteID *psid;
celestar@2536: int base_offset;
smatz@8083: bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
truelight@0:
belugas@8549: if (transport_type == TRANSPORT_RAIL) {
celestar@5385: base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
belugas@6422: assert(base_offset != 8); // This one is used for roads
tron@3234: } else {
tron@3234: base_offset = 8;
celestar@2536: }
celestar@2536:
celestar@2536: /* as the lower 3 bits are used for other stuff, make sure they are clear */
celestar@2536: assert( (base_offset & 0x07) == 0x00);
truelight@0:
belugas@8548: DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
tron@3977:
belugas@6422: /* HACK Wizardry to convert the bridge ramp direction into a sprite offset */
belugas@8548: base_offset += (6 - tunnelbridge_direction) % 4;
tron@3977:
celestar@5385: if (ti->tileh == SLOPE_FLAT) base_offset += 4; // sloped bridge head
tron@3977:
belugas@9642: /* Table number BRIDGE_PIECE_HEAD always refers to the bridge heads for any bridge type */
rubidium@9490: if (transport_type != TRANSPORT_WATER) {
belugas@9642: psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
rubidium@9490: } else {
rubidium@9490: psid = _aqueduct_sprites + base_offset;
rubidium@9490: }
tron@3977:
celestar@5385: if (!ice) {
celestar@5385: DrawClearLandTile(ti, 3);
celestar@5385: } else {
peter1138@5668: DrawGroundSprite(SPR_FLAT_SNOWY_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
tron@3977: }
celestar@5385:
belugas@6422: /* draw ramp */
peter1138@5668:
rubidium@7601: /* Draw Trambits as SpriteCombine */
belugas@8549: if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
rubidium@7601:
celestar@5385: /* HACK set the height of the BB of a sloped ramp to 1 so a vehicle on
celestar@5385: * it doesn't disappear behind it
celestar@5385: */
smatz@8806: /* Bridge heads are drawn solid no matter how invisibility/transparency is set */
smatz@8806: AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
celestar@5385:
belugas@8549: if (transport_type == TRANSPORT_ROAD) {
rubidium@6691: RoadTypes rts = GetRoadTypes(ti->tile);
rubidium@6691:
skidd13@7928: if (HasBit(rts, ROADTYPE_TRAM)) {
belugas@8548: uint offset = tunnelbridge_direction;
rubidium@6712: uint z = ti->z;
rubidium@6691: if (ti->tileh != SLOPE_FLAT) {
rubidium@6691: offset = (offset + 1) & 1;
rubidium@6712: z += TILE_HEIGHT;
rubidium@6691: } else {
rubidium@6691: offset += 2;
rubidium@6691: }
rubidium@7601: /* DrawBridgeTramBits() calls EndSpriteCombine() and StartSpriteCombine() */
smatz@8806: DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
rubidium@6691: }
rubidium@7601: EndSpriteCombine();
smatz@9154: } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
rubidium@6691: DrawCatenary(ti);
rubidium@6691: }
rubidium@6691:
celestar@5385: DrawBridgeMiddle(ti);
celestar@3933: }
celestar@3933: }
celestar@3933:
celestar@5385:
celestar@5385: /** Compute bridge piece. Computes the bridge piece to display depending on the position inside the bridge.
belugas@9642: * bridges pieces sequence (middle parts).
belugas@9642: * Note that it is not covering the bridge heads, which are always referenced by the same sprite table.
belugas@9642: * bridge len 1: BRIDGE_PIECE_NORTH
belugas@9642: * bridge len 2: BRIDGE_PIECE_NORTH BRIDGE_PIECE_SOUTH
belugas@9642: * bridge len 3: BRIDGE_PIECE_NORTH BRIDGE_PIECE_MIDDLE_ODD BRIDGE_PIECE_SOUTH
belugas@9642: * bridge len 4: BRIDGE_PIECE_NORTH BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_SOUTH
belugas@9642: * bridge len 5: BRIDGE_PIECE_NORTH BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_MIDDLE_EVEN BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_SOUTH
belugas@9642: * bridge len 6: BRIDGE_PIECE_NORTH BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_SOUTH
belugas@9642: * bridge len 7: BRIDGE_PIECE_NORTH BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_MIDDLE_ODD BRIDGE_PIECE_INNER_NORTH BRIDGE_PIECE_INNER_SOUTH BRIDGE_PIECE_SOUTH
celestar@5385: * #0 - always as first, #1 - always as last (if len>1)
celestar@5385: * #2,#3 are to pair in order
celestar@5385: * for odd bridges: #5 is going in the bridge middle if on even position, #4 on odd (counting from 0)
celestar@5385: * @param north Northernmost tile of bridge
celestar@5385: * @param south Southernmost tile of bridge
celestar@5385: * @return Index of bridge piece
celestar@5385: */
belugas@9642: static BridgePieces CalcBridgePiece(uint north, uint south)
celestar@5385: {
celestar@5385: if (north == 1) {
belugas@9642: return BRIDGE_PIECE_NORTH;
celestar@5385: } else if (south == 1) {
belugas@9642: return BRIDGE_PIECE_SOUTH;
celestar@5385: } else if (north < south) {
belugas@9642: return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
celestar@5385: } else if (north > south) {
belugas@9642: return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
celestar@5385: } else {
belugas@9642: return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
celestar@5385: }
celestar@5385: }
celestar@5385:
celestar@5385:
celestar@5385: void DrawBridgeMiddle(const TileInfo* ti)
celestar@5385: {
rubidium@7601: /* Sectional view of bridge bounding boxes:
rubidium@7601: *
rubidium@7601: * 1 2 1,2 = SpriteCombine of Bridge front/(back&floor) and TramCatenary
rubidium@7601: * 1 2 3 = empty helper BB
rubidium@7601: * 1 7 2 4,5 = pillars under higher bridges
rubidium@7601: * 1 6 88888 6 2 6 = elrail-pylons
rubidium@7601: * 1 6 88888 6 2 7 = elrail-wire
rubidium@7601: * 1 6 88888 6 2 <- TILE_HEIGHT 8 = rail-vehicle on bridge
rubidium@7601: * 3333333333333 <- BB_Z_SEPARATOR
rubidium@7601: * <- unused
rubidium@7601: * 4 5 <- BB_HEIGHT_UNDER_BRIDGE
rubidium@7601: * 4 5
rubidium@7601: * 4 5
rubidium@7601: *
rubidium@7601: */
rubidium@7601:
rubidium@7601: /* Z position of the bridge sprites relative to bridge height (downwards) */
rubidium@7601: static const int BRIDGE_Z_START = 3;
rubidium@7601:
celestar@5385: if (!IsBridgeAbove(ti->tile)) return;
celestar@5385:
smatz@9498: TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
smatz@9498: TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
smatz@9498: TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
celestar@5385:
smatz@9498: Axis axis = GetBridgeAxis(ti->tile);
belugas@9642: BridgePieces piece = CalcBridgePiece(
smatz@8398: GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
smatz@8398: GetTunnelBridgeLength(ti->tile, rampsouth) + 1
celestar@5385: );
celestar@5385:
smatz@9498: const PalSpriteID *psid;
smatz@9498: bool drawfarpillar;
rubidium@9490: if (transport_type != TRANSPORT_WATER) {
smatz@9498: BridgeType type = GetBridgeType(rampsouth);
smatz@9498: drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
smatz@9498:
smatz@9498: uint base_offset;
rubidium@9490: if (transport_type == TRANSPORT_RAIL) {
rubidium@9490: base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
rubidium@9490: } else {
rubidium@9490: base_offset = 8;
rubidium@9490: }
rubidium@9490:
rubidium@9490: psid = base_offset + GetBridgeSpriteTable(type, piece);
celestar@5385: } else {
smatz@9498: drawfarpillar = true;
rubidium@9490: psid = _aqueduct_sprites;
celestar@5385: }
smatz@9498:
peter1138@5668: if (axis != AXIS_X) psid += 4;
celestar@5385:
smatz@9498: int x = ti->x;
smatz@9498: int y = ti->y;
rubidium@6691: uint bridge_z = GetBridgeHeight(rampsouth);
smatz@9498: uint z = bridge_z - BRIDGE_Z_START;
celestar@5385:
rubidium@7601: /* Add a bounding box, that separates the bridge from things below it. */
rubidium@7601: AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
rubidium@7601:
rubidium@7601: /* Draw Trambits as SpriteCombine */
belugas@8549: if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
rubidium@7601:
rubidium@7601: /* Draw floor and far part of bridge*/
smatz@8806: if (!IsInvisibilitySet(TO_BRIDGES)) {
smatz@8806: if (axis == AXIS_X) {
smatz@8806: AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
smatz@8806: } else {
smatz@8806: AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
smatz@8806: }
peter1138@5668: }
peter1138@5668:
peter1138@5668: psid++;
celestar@5385:
belugas@8549: if (transport_type == TRANSPORT_ROAD) {
rubidium@6691: RoadTypes rts = GetRoadTypes(rampsouth);
rubidium@6691:
skidd13@7928: if (HasBit(rts, ROADTYPE_TRAM)) {
rubidium@7601: /* DrawBridgeTramBits() calls EndSpriteCombine() and StartSpriteCombine() */
smatz@8806: DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
rubidium@7601: } else {
rubidium@7601: EndSpriteCombine();
rubidium@7601: StartSpriteCombine();
rubidium@6691: }
smatz@9154: } else if (HasCatenaryDrawn(GetRailType(rampsouth))) {
smatz@9034: DrawCatenaryOnBridge(ti);
rubidium@6687: }
rubidium@6687:
belugas@6422: /* draw roof, the component of the bridge which is logically between the vehicle and the camera */
smatz@8806: if (!IsInvisibilitySet(TO_BRIDGES)) {
smatz@8806: if (axis == AXIS_X) {
smatz@8806: y += 12;
smatz@8806: if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
smatz@8806: } else {
smatz@8806: x += 12;
smatz@8806: if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
smatz@8806: }
celestar@5385: }
celestar@5385:
rubidium@7601: /* Draw TramFront as SpriteCombine */
belugas@8549: if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
rubidium@7601:
smatz@8806: /* Do not draw anything more if bridges are invisible */
smatz@8806: if (IsInvisibilitySet(TO_BRIDGES)) return;
smatz@8806:
peter1138@5668: psid++;
celestar@5385: if (ti->z + 5 == z) {
belugas@6422: /* draw poles below for small bridges */
peter1138@5668: if (psid->sprite != 0) {
rubidium@7333: SpriteID image = psid->sprite;
rubidium@7333: SpriteID pal = psid->pal;
belugas@7849: if (IsTransparencySet(TO_BRIDGES)) {
skidd13@7931: SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
peter1138@5668: pal = PALETTE_TO_TRANSPARENT;
peter1138@5668: }
peter1138@5668:
peter1138@5668: DrawGroundSpriteAt(image, pal, x, y, z);
celestar@5385: }
rubidium@9413: } else if (_settings_client.gui.bridge_pillars) {
belugas@6422: /* draw pillars below for high bridges */
smatz@9498: DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
celestar@5385: }
celestar@5385: }
celestar@5385:
celestar@5385:
tron@4231: static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
tron@2537: {
tron@4231: uint z;
tron@4231: Slope tileh = GetTileSlope(tile, &z);
tron@4231:
tron@4231: x &= 0xF;
tron@4231: y &= 0xF;
truelight@0:
tron@3517: if (IsTunnel(tile)) {
smatz@8083: uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
truelight@0:
belugas@6422: /* In the tunnel entrance? */
tron@3517: if (5 <= pos && pos <= 10) return z;
smatz@8390: } else { // IsBridge(tile)
smatz@8083: DiagDirection dir = GetTunnelBridgeDirection(tile);
celestar@5385: uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
tron@3977:
rubidium@7335: z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
rubidium@7335:
belugas@6422: /* On the bridge ramp? */
celestar@5385: if (5 <= pos && pos <= 10) {
celestar@5385: uint delta;
tron@4246:
frosch@8379: if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
tron@3517:
celestar@5385: switch (dir) {
celestar@5385: default: NOT_REACHED();
celestar@5385: case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
celestar@5385: case DIAGDIR_SE: delta = y / 2; break;
celestar@5385: case DIAGDIR_SW: delta = x / 2; break;
celestar@5385: case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
celestar@5385: }
celestar@5385: return z + 1 + delta;
truelight@0: }
truelight@0: }
truelight@0:
tron@3517: return z + GetPartialZ(x, y, tileh);
truelight@0: }
truelight@0:
rubidium@7335: static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
tron@2639: {
smatz@8083: return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
dominik@39: }
dominik@39:
dominik@39:
tron@1977: static void GetAcceptedCargo_TunnelBridge(TileIndex tile, AcceptedCargo ac)
truelight@0: {
truelight@0: /* not used */
truelight@0: }
truelight@0:
tron@1977: static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
truelight@0: {
smatz@9497: TransportType tt = GetTunnelBridgeTransportType(tile);
smatz@9497:
tron@3184: if (IsTunnel(tile)) {
smatz@9497: td->str = (tt == TRANSPORT_RAIL) ? STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
smatz@9497: } else { // IsBridge(tile)
smatz@9497: td->str = (tt == TRANSPORT_WATER) ? STR_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
truelight@0: }
frosch@9322: td->owner[0] = GetTileOwner(tile);
truelight@0: }
truelight@0:
truelight@0:
tron@1977: static void AnimateTile_TunnelBridge(TileIndex tile)
truelight@0: {
truelight@0: /* not used */
truelight@0: }
truelight@0:
tron@1977: static void TileLoop_TunnelBridge(TileIndex tile)
truelight@0: {
smatz@8088: bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
rubidium@9413: switch (_settings_game.game_creation.landscape) {
belugas@6357: case LT_ARCTIC:
maedhros@6343: if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
smatz@8088: SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
tron@4160: MarkTileDirtyByTile(tile);
tron@3017: }
tron@3017: break;
tron@3017:
belugas@6357: case LT_TROPIC:
rubidium@5410: if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
smatz@8088: SetTunnelBridgeSnowOrDesert(tile, true);
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
tron@3017: break;
smatz@8088:
smatz@8088: default:
smatz@8088: break;
truelight@0: }
truelight@0: }
truelight@0:
tron@1977: static void ClickTile_TunnelBridge(TileIndex tile)
truelight@0: {
truelight@0: /* not used */
truelight@0: }
truelight@0:
truelight@0:
frosch@8616: static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
truelight@0: {
belugas@8549: TransportType transport_type = GetTunnelBridgeTransportType(tile);
belugas@8549: if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
smatz@8596:
smatz@8596: DiagDirection dir = GetTunnelBridgeDirection(tile);
smatz@8596: if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
smatz@9224: return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
truelight@0: }
truelight@0:
Darkvater@2436: static void ChangeTileOwner_TunnelBridge(TileIndex tile, PlayerID old_player, PlayerID new_player)
truelight@0: {
tron@1901: if (!IsTileOwner(tile, old_player)) return;
truelight@193:
Darkvater@4848: if (new_player != PLAYER_SPECTATOR) {
tron@1902: SetTileOwner(tile, new_player);
rubidium@4434: } else {
smatz@8519: if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR))) {
rubidium@6734: /* When clearing the bridge/tunnel failed there are still vehicles on/in
rubidium@6734: * the bridge/tunnel. As all *our* vehicles are already removed, they
smatz@9495: * must be of another owner. Therefore this can't be rail tunnel/bridge.
rubidium@6734: * In that case we can safely reassign the ownership to OWNER_NONE. */
smatz@9495: assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
rubidium@6734: SetTileOwner(tile, OWNER_NONE);
rubidium@6734: }
truelight@0: }
truelight@0: }
truelight@0:
truelight@0:
rubidium@4344: static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
rubidium@4344: static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
rubidium@4344: static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
rubidium@4344: static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
truelight@0:
rubidium@6000: /** Get the trackdir of the exit of a tunnel */
rubidium@6000: static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
rubidium@6000: TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
rubidium@6000: };
truelight@0: static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
truelight@0:
rubidium@4344: static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
rubidium@4344: static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
rubidium@4344: static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
rubidium@4344: static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
truelight@0:
rubidium@8119: static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
celestar@5385: int z = GetSlopeZ(x, y) - v->z_pos;
celestar@5385:
skidd13@7923: if (abs(z) > 2) return VETSB_CANNOT_ENTER;
belugas@8548: const DiagDirection dir = GetTunnelBridgeDirection(tile);
celestar@5385:
tron@3184: if (IsTunnel(tile)) {
tron@2989: byte fc;
tron@3153: DiagDirection vdir;
tron@2989:
rubidium@6259: if (v->type == VEH_TRAIN) {
tron@2951: fc = (x & 0xF) + (y << 4);
truelight@193:
tron@3153: vdir = DirToDiagDir(v->direction);
truelight@0:
rubidium@5993: if (v->u.rail.track != TRACK_BIT_WORMHOLE && dir == vdir) {
bjarni@2676: if (IsFrontEngine(v) && fc == _tunnel_fractcoord_1[dir]) {
Darkvater@6213: if (!PlayVehicleSound(v, VSE_TUNNEL) && RailVehInfo(v->engine_type)->engclass == 0) {
tron@541: SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
peter1138@4656: }
rubidium@5991: return VETSB_CONTINUE;
truelight@0: }
truelight@0: if (fc == _tunnel_fractcoord_2[dir]) {
truelight@0: v->tile = tile;
rubidium@5587: v->u.rail.track = TRACK_BIT_WORMHOLE;
truelight@0: v->vehstatus |= VS_HIDDEN;
rubidium@5991: return VETSB_ENTERED_WORMHOLE;
truelight@0: }
truelight@0: }
truelight@0:
tron@3153: if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
darkvater@22: /* We're at the tunnel exit ?? */
truelight@0: v->tile = tile;
rubidium@5587: v->u.rail.track = (TrackBits)_exit_tunnel_track[dir];
matthijs@1330: assert(v->u.rail.track);
truelight@0: v->vehstatus &= ~VS_HIDDEN;
rubidium@5991: return VETSB_ENTERED_WORMHOLE;
truelight@0: }
rubidium@6259: } else if (v->type == VEH_ROAD) {
tron@2951: fc = (x & 0xF) + (y << 4);
tron@3153: vdir = DirToDiagDir(v->direction);
truelight@0:
belugas@6422: /* Enter tunnel? */
rubidium@6000: if (v->u.road.state != RVSB_WORMHOLE && dir == vdir) {
truelight@0: if (fc == _tunnel_fractcoord_4[dir] ||
truelight@0: fc == _tunnel_fractcoord_5[dir]) {
truelight@0: v->tile = tile;
rubidium@6000: v->u.road.state = RVSB_WORMHOLE;
truelight@193: v->vehstatus |= VS_HIDDEN;
rubidium@5991: return VETSB_ENTERED_WORMHOLE;
truelight@0: } else {
rubidium@5991: return VETSB_CONTINUE;
truelight@0: }
truelight@0: }
truelight@0:
tron@3153: if (dir == ReverseDiagDir(vdir) && (
tron@2951: /* We're at the tunnel exit ?? */
tron@2951: fc == _tunnel_fractcoord_6[dir] ||
tron@2951: fc == _tunnel_fractcoord_7[dir]
tron@2951: ) &&
truelight@0: z == 0) {
truelight@0: v->tile = tile;
truelight@0: v->u.road.state = _road_exit_tunnel_state[dir];
truelight@0: v->u.road.frame = _road_exit_tunnel_frame[dir];
truelight@0: v->vehstatus &= ~VS_HIDDEN;
rubidium@5991: return VETSB_ENTERED_WORMHOLE;
truelight@0: }
truelight@0: }
smatz@8390: } else { // IsBridge(tile)
celestar@5385:
rubidium@9490: if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
celestar@5385: /* modify speed of vehicle */
belugas@8491: uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
celestar@5385:
rubidium@6259: if (v->type == VEH_ROAD) spd *= 2;
celestar@5385: if (v->cur_speed > spd) v->cur_speed = spd;
celestar@5385: }
celestar@5385:
celestar@5385: if (DirToDiagDir(v->direction) == dir) {
celestar@5385: switch (dir) {
celestar@5385: default: NOT_REACHED();
rubidium@5991: case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
rubidium@5991: case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
rubidium@5991: case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
rubidium@5991: case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
truelight@0: }
rubidium@9490: switch (v->type) {
rubidium@9490: case VEH_TRAIN:
rubidium@9490: v->u.rail.track = TRACK_BIT_WORMHOLE;
rubidium@9490: ClrBit(v->u.rail.flags, VRF_GOINGUP);
rubidium@9490: ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
rubidium@9490: break;
rubidium@9490:
rubidium@9490: case VEH_ROAD:
rubidium@9490: v->u.road.state = RVSB_WORMHOLE;
rubidium@9490: break;
rubidium@9490:
rubidium@9490: case VEH_SHIP:
rubidium@9490: v->u.ship.state = TRACK_BIT_WORMHOLE;
rubidium@9490: break;
rubidium@9490:
rubidium@9490: default: NOT_REACHED();
celestar@5385: }
rubidium@5991: return VETSB_ENTERED_WORMHOLE;
celestar@5385: } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
celestar@5385: v->tile = tile;
rubidium@9490: switch (v->type) {
rubidium@9490: case VEH_TRAIN:
rubidium@9490: if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
rubidium@9490: v->u.rail.track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
rubidium@9490: return VETSB_ENTERED_WORMHOLE;
rubidium@9490: }
rubidium@9490: break;
rubidium@9490:
rubidium@9490: case VEH_ROAD:
rubidium@9490: if (v->u.road.state == RVSB_WORMHOLE) {
rubidium@9490: v->u.road.state = _road_exit_tunnel_state[dir];
rubidium@9490: v->u.road.frame = 0;
rubidium@9490: return VETSB_ENTERED_WORMHOLE;
rubidium@9490: }
rubidium@9490: break;
rubidium@9490:
rubidium@9490: case VEH_SHIP:
rubidium@9490: if (v->u.ship.state == TRACK_BIT_WORMHOLE) {
rubidium@9490: v->u.ship.state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
rubidium@9490: return VETSB_ENTERED_WORMHOLE;
rubidium@9490: }
rubidium@9490: break;
rubidium@9490:
rubidium@9490: default: NOT_REACHED();
celestar@5385: }
truelight@0: }
truelight@0: }
rubidium@5991: return VETSB_CONTINUE;
truelight@0: }
truelight@0:
rubidium@7494: static CommandCost TerraformTile_TunnelBridge(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new)
rubidium@7494: {
rubidium@9492: if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
smatz@8083: DiagDirection direction = GetTunnelBridgeDirection(tile);
rubidium@7582: Axis axis = DiagDirToAxis(direction);
rubidium@7582: CommandCost res;
frosch@8371: uint z_old;
frosch@8371: Slope tileh_old = GetTileSlope(tile, &z_old);
rubidium@7582:
rubidium@7582: /* Check if new slope is valid for bridges in general (so we can savely call GetBridgeFoundation()) */
rubidium@7582: if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
frosch@8371: CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
frosch@8371: res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
rubidium@7582: } else {
frosch@8371: CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
frosch@8371: res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
rubidium@7582: }
rubidium@7582:
frosch@8371: /* Surface slope is valid and remains unchanged? */
frosch@8371: if (!CmdFailed(res) && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
rubidium@7582: }
rubidium@7582:
rubidium@7494: return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
rubidium@7494: }
rubidium@7494:
rubidium@5587: extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
rubidium@4344: DrawTile_TunnelBridge, /* draw_tile_proc */
rubidium@4344: GetSlopeZ_TunnelBridge, /* get_slope_z_proc */
rubidium@4344: ClearTile_TunnelBridge, /* clear_tile_proc */
rubidium@4344: GetAcceptedCargo_TunnelBridge, /* get_accepted_cargo_proc */
rubidium@4344: GetTileDesc_TunnelBridge, /* get_tile_desc_proc */
rubidium@4344: GetTileTrackStatus_TunnelBridge, /* get_tile_track_status_proc */
rubidium@4344: ClickTile_TunnelBridge, /* click_tile_proc */
rubidium@4344: AnimateTile_TunnelBridge, /* animate_tile_proc */
rubidium@4344: TileLoop_TunnelBridge, /* tile_loop_clear */
rubidium@4344: ChangeTileOwner_TunnelBridge, /* change_tile_owner_clear */
rubidium@4344: NULL, /* get_produced_cargo_proc */
rubidium@4344: VehicleEnter_TunnelBridge, /* vehicle_enter_tile_proc */
rubidium@7335: GetFoundation_TunnelBridge, /* get_foundation_proc */
rubidium@7494: TerraformTile_TunnelBridge, /* terraform_tile_proc */
truelight@0: };