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@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"
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"
truelight@0:
ludde@2261: #include "table/bridge_land.h"
ludde@2261:
ludde@2261: extern const byte _track_sloped_sprites[14];
ludde@2261: extern const SpriteID _water_shore_sprites[15];
ludde@2261:
tron@1977: extern void DrawCanalWater(TileIndex tile);
truelight@0:
peter1138@2478: const Bridge orig_bridge[] = {
celestar@2262: /*
bjarni@2293: year of availablity
celestar@2262: | minimum length
celestar@2262: | | maximum length
celestar@2262: | | | price
celestar@2262: | | | | maximum speed
celestar@2262: | | | | | sprite to use in GUI string with description
celestar@2262: | | | | | | | */
peter1138@2478: { 0, 0, 16, 80, 32, 0xA24 , STR_5012_WOODEN , NULL, 0 },
peter1138@2478: { 0, 0, 2, 112, 48, 0xA26 | PALETTE_TO_STRUCT_RED , STR_5013_CONCRETE , NULL, 0 },
peter1138@2478: { 10, 0, 5, 144, 64, 0xA25 , STR_500F_GIRDER_STEEL , NULL, 0 },
peter1138@2478: { 0, 2, 10, 168, 80, 0xA22 | PALETTE_TO_STRUCT_CONCRETE, STR_5011_SUSPENSION_CONCRETE, NULL, 0 },
peter1138@2478: { 10, 3, 16, 185, 96, 0xA22 , STR_500E_SUSPENSION_STEEL , NULL, 0 },
peter1138@2478: { 10, 3, 16, 192, 112, 0xA22 | PALETTE_TO_STRUCT_YELLOW , STR_500E_SUSPENSION_STEEL , NULL, 0 },
peter1138@2478: { 10, 3, 7, 224, 160, 0xA23 , STR_5010_CANTILEVER_STEEL , NULL, 0 },
peter1138@2478: { 10, 3, 8, 232, 208, 0xA23 | PALETTE_TO_STRUCT_BROWN , STR_5010_CANTILEVER_STEEL , NULL, 0 },
peter1138@2478: { 10, 3, 9, 248, 240, 0xA23 | PALETTE_TO_STRUCT_RED , STR_5010_CANTILEVER_STEEL , NULL, 0 },
peter1138@2478: { 10, 0, 2, 240, 256, 0xA27 , STR_500F_GIRDER_STEEL , NULL, 0 },
peter1138@2478: { 75, 2, 16, 255, 320, 0xA28 , STR_5014_TUBULAR_STEEL , NULL, 0 },
peter1138@2478: { 85, 2, 32, 380, 512, 0xA28 | PALETTE_TO_STRUCT_YELLOW , STR_5014_TUBULAR_STEEL , NULL, 0 },
peter1138@2478: { 90, 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:
truelight@0: enum {
truelight@0: // foundation, whole tile is leveled up (tileh's 7, 11, 13, 14) --> 3 corners raised
truelight@0: BRIDGE_FULL_LEVELED_FOUNDATION = 1 << 7 | 1 << 11 | 1 << 13 | 1 << 14,
truelight@0: // foundation, tile is partly leveled up (tileh's 1, 2, 4, 8) --> 1 corner raised
truelight@0: BRIDGE_PARTLY_LEVELED_FOUNDATION = 1 << 1 | 1 << 2 | 1 << 4 | 1 << 8,
truelight@0: // no foundations (X,Y direction) (tileh's 0, 3, 6, 9, 12)
truelight@0: BRIDGE_NO_FOUNDATION = 1 << 0 | 1 << 3 | 1 << 6 | 1 << 9 | 1 << 12,
truelight@0: };
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:
celestar@2262: /**
celestar@2262: * Determines which piece of a bridge is contained in the current tile
celestar@2262: * @param tile The tile to analyze
celestar@2262: * @return the piece
celestar@2262: */
celestar@2262: static inline int GetBridgePiece(TileIndex tile)
celestar@2262: {
celestar@2262: return GB(_m[tile].m2, 0, 4);
celestar@2262: }
celestar@2262:
celestar@2262: /**
celestar@2262: * Determines the type of bridge on a tile
celestar@2262: * @param tile The tile to analyze
celestar@2262: * @return The bridge type
celestar@2262: */
celestar@2262: static inline int GetBridgeType(TileIndex tile)
celestar@2262: {
celestar@2262: return GB(_m[tile].m2, 4, 4);
celestar@2262: }
celestar@2262:
celestar@2262: /** check if bridge can be built on slope
truelight@0: * direction 0 = X-axis, direction 1 = Y-axis
truelight@0: * is_start_tile = false <-- end tile
truelight@0: * is_start_tile = true <-- start tile
truelight@0: */
truelight@0: static uint32 CheckBridgeSlope(uint direction, uint tileh, bool is_start_tile)
truelight@0: {
tron@2639: if (IsSteepTileh(tileh)) return CMD_ERROR;
truelight@0:
tron@2639: if (is_start_tile) {
tron@2639: /* check slope at start tile
tron@2639: - no extra cost
tron@2639: - direction X: tiles 0, 12
tron@2639: - direction Y: tiles 0, 9
tron@2639: */
tron@2639: if ((direction ? 0x201 : 0x1001) & (1 << tileh)) return 0;
truelight@0:
tron@2639: // disallow certain start tiles to avoid certain crooked bridges
tron@2639: if (tileh == 2) return CMD_ERROR;
tron@2639: } else {
tron@2639: /* check slope at end tile
tron@2639: - no extra cost
tron@2639: - direction X: tiles 0, 3
tron@2639: - direction Y: tiles 0, 6
tron@2639: */
tron@2639: if ((direction? 0x41 : 0x9) & (1 << tileh)) return 0;
truelight@0:
tron@2639: // disallow certain end tiles to avoid certain crooked bridges
tron@2639: if (tileh == 8) return CMD_ERROR;
tron@2639: }
truelight@0:
tron@2639: /* disallow common start/end tiles to avoid certain crooked bridges e.g.
tron@2639: * start-tile: X 2,1 Y 2,4 (2 was disabled before)
tron@2639: * end-tile: X 8,4 Y 8,1 (8 was disabled before)
tron@2639: */
tron@2639: if ((tileh == 1 && is_start_tile != (bool)direction) ||
tron@2639: (tileh == 4 && is_start_tile == (bool)direction)) {
tron@2639: return CMD_ERROR;
truelight@0: }
truelight@0:
tron@2639: // slope foundations
tron@2639: if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << tileh) || BRIDGE_PARTLY_LEVELED_FOUNDATION & (1 << tileh))
tron@2639: return _price.terraform;
tron@2639:
truelight@0: return CMD_ERROR;
truelight@0: }
truelight@0:
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
Darkvater@1775: * @param x,y end tile coord
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: */
truelight@0: int32 CmdBuildBridge(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
truelight@0: int bridge_type;
truelight@0: byte rail_or_road, railtype, m5;
truelight@0: int sx,sy;
truelight@0: TileInfo ti_start, ti_end, ti; /* OPT: only 2 of those are ever used */
tron@2639: uint bridge_len;
tron@2639: uint odd_middle_part;
truelight@0: uint 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);
tron@2140: railtype = GB(p2, 8, 8);
truelight@193:
tron@2934: if (p1 >= MapSize()) return CMD_ERROR;
Darkvater@1775:
truelight@0: // type of bridge
Darkvater@1775: if (HASBIT(railtype, 7)) { // bit 15 of original p2 param
truelight@0: railtype = 0;
truelight@0: rail_or_road = 2;
truelight@0: } else {
Darkvater@1775: if (!ValParamRailtype(railtype)) return CMD_ERROR;
truelight@0: rail_or_road = 0;
truelight@0: }
truelight@0:
tron@926: sx = TileX(p1) * 16;
tron@926: sy = TileY(p1) * 16;
truelight@0:
truelight@0: direction = 0;
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);
truelight@0: direction = 1;
truelight@0: if (y > sy) {
truelight@0: intswap(y,sy);
truelight@0: intswap(x,sx);
truelight@0: }
truelight@0: } else if (y == sy) {
truelight@0: if (x > sx) {
truelight@0: intswap(y,sy);
truelight@0: intswap(x,sx);
truelight@0: }
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 */
Darkvater@1781: bridge_len = ((sx + sy - x - y) >> 4) - 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@2951: if ((
tron@2951: FindLandscapeHeight(&ti_end, sx, sy),
tron@2951: ti_end.type == MP_WATER && ti_end.map5 == 0
tron@2951: ) || (
tron@2951: FindLandscapeHeight(&ti_start, x, y),
tron@2951: ti_start.type == MP_WATER && ti_start.map5 == 0
tron@2951: )) {
truelight@0: return_cmd_error(STR_02A0_ENDS_OF_BRIDGE_MUST_BOTH);
tron@2951: }
truelight@0:
truelight@0: if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << ti_start.tileh)) {
truelight@0: ti_start.z += 8;
truelight@0: ti_start.tileh = 0;
truelight@0: }
truelight@0:
truelight@0: if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << ti_end.tileh)) {
truelight@0: ti_end.z += 8;
truelight@0: ti_end.tileh = 0;
truelight@0: }
truelight@0:
truelight@0: if (ti_start.z != ti_end.z)
truelight@0: return_cmd_error(STR_5009_LEVEL_LAND_OR_WATER_REQUIRED);
truelight@0:
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:
Darkvater@1775: if (CmdFailed(ret = DoCommandByTile(ti_start.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR)))
truelight@0: return CMD_ERROR;
truelight@0: cost = ret;
truelight@0:
pasky@1585: // true - bridge-start-tile, false - bridge-end-tile
pasky@1585: terraformcost = CheckBridgeSlope(direction, ti_start.tileh, true);
peter1138@2737: if (CmdFailed(terraformcost) || (terraformcost && !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@2639: ret = DoCommandByTile(ti_end.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@2639: if (CmdFailed(ret)) return CMD_ERROR;
truelight@0: cost += ret;
truelight@193:
pasky@1585: // false - end tile slope check
pasky@1585: terraformcost = CheckBridgeSlope(direction, ti_end.tileh, false);
peter1138@2737: if (CmdFailed(terraformcost) || (terraformcost && !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) {
truelight@0: /* build the start tile */
truelight@0: ModifyTile(ti_start.tile,
truelight@0: MP_SETTYPE(MP_TUNNELBRIDGE) |
truelight@0: MP_MAP2 | MP_MAP3LO | MP_MAPOWNER_CURRENT | MP_MAP5,
truelight@0: (bridge_type << 4), /* map2 */
truelight@0: railtype, /* map3_lo */
truelight@0: 0x80 | direction | rail_or_road /* map5 */
truelight@0: );
truelight@0:
truelight@0: /* build the end tile */
truelight@0: ModifyTile(ti_end.tile,
truelight@0: MP_SETTYPE(MP_TUNNELBRIDGE) |
truelight@0: MP_MAP2 | MP_MAP3LO | MP_MAPOWNER_CURRENT | MP_MAP5,
truelight@0: (bridge_type << 4), /* map2 */
truelight@0: railtype, /* map3_lo */
truelight@0: 0x80 | 0x20 | direction | rail_or_road /* map5 */
truelight@0: );
truelight@0: }
truelight@0:
Darkvater@1781: // position of middle part of the odd bridge (larger than MAX(i) otherwise)
Darkvater@1781: odd_middle_part = (bridge_len % 2) ? (bridge_len / 2) : bridge_len;
truelight@0:
Darkvater@1781: for (i = 0; i != bridge_len; i++) {
Darkvater@1781: if (direction != 0) {
Darkvater@1781: y += 16;
tron@2639: } else {
Darkvater@1781: x += 16;
tron@2639: }
truelight@0:
truelight@0: FindLandscapeHeight(&ti, x, y);
truelight@0:
truelight@0: _error_message = STR_5009_LEVEL_LAND_OR_WATER_REQUIRED;
tron@2639: if (ti.tileh != 0 && ti.z >= ti_start.z) return CMD_ERROR;
truelight@0:
truelight@193: // Find ship below
tron@2639: if (ti.type == MP_WATER && !EnsureNoVehicle(ti.tile)) {
truelight@0: _error_message = STR_980E_SHIP_IN_THE_WAY;
truelight@0: return CMD_ERROR;
truelight@0: }
truelight@0:
truelight@0: if (ti.type == MP_WATER) {
tron@1091: if (ti.map5 > 1) goto not_valid_below;
truelight@0: m5 = 0xC8;
truelight@0: } else if (ti.type == MP_RAILWAY) {
truelight@0: if (direction == 0) {
truelight@0: if (ti.map5 != 2) goto not_valid_below;
truelight@0: } else {
truelight@0: if (ti.map5 != 1) goto not_valid_below;
truelight@0: }
truelight@0: m5 = 0xE0;
truelight@0: } else if (ti.type == MP_STREET) {
truelight@0: if (direction == 0) {
truelight@0: if (ti.map5 != 5) goto not_valid_below;
truelight@0: } else {
truelight@0: if (ti.map5 != 10) goto not_valid_below;
truelight@0: }
truelight@0: m5 = 0xE8;
truelight@0: } else {
truelight@0: not_valid_below:;
truelight@0: /* try and clear the middle landscape */
tron@2639: ret = DoCommandByTile(ti.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@2639: if (CmdFailed(ret)) return CMD_ERROR;
truelight@0: cost += ret;
truelight@0: m5 = 0xC0;
truelight@0: }
truelight@0:
truelight@0: /* do middle part of bridge */
truelight@0: if (flags & DC_EXEC) {
tron@2049: _m[ti.tile].m5 = (byte)(m5 | direction | rail_or_road);
tron@1059: SetTileType(ti.tile, MP_TUNNELBRIDGE);
truelight@0:
truelight@0: //bridges pieces sequence (middle parts)
truelight@193: // bridge len 1: 0
truelight@0: // bridge len 2: 0 1
truelight@0: // bridge len 3: 0 4 1
truelight@0: // bridge len 4: 0 2 3 1
truelight@0: // bridge len 5: 0 2 5 3 1
truelight@0: // bridge len 6: 0 2 3 2 3 1
truelight@0: // bridge len 7: 0 2 3 4 2 3 1
tron@2639: // #0 - always as first, #1 - always as last (if len>1)
truelight@0: // #2,#3 are to pair in order
truelight@0: // for odd bridges: #5 is going in the bridge middle if on even position, #4 on odd (counting from 0)
truelight@0:
tron@2639: if (i == 0) { // first tile
truelight@193: m5 = 0;
tron@2639: } else if (i == bridge_len - 1) { // last tile
truelight@0: m5 = 1;
tron@2639: } else if (i == odd_middle_part) { // we are on the middle of odd bridge: #5 on even pos, #4 on odd
tron@2639: m5 = 5 - (i % 2);
tron@2639: } else {
truelight@0: // generate #2 and #3 in turns [i%2==0], after the middle of odd bridge
truelight@193: // this sequence swaps [... XOR (i>odd_middle_part)],
truelight@0: // for even bridges XOR does not apply as odd_middle_part==bridge_len
tron@2639: m5 = 2 + ((i % 2 == 0) ^ (i > odd_middle_part));
truelight@0: }
truelight@0:
tron@2049: _m[ti.tile].m2 = (bridge_type << 4) | m5;
tron@2150: SB(_m[ti.tile].m3, 4, 4, railtype);
truelight@0:
truelight@0: MarkTileDirtyByTile(ti.tile);
truelight@0: }
truelight@0: }
truelight@0:
tron@2639: SetSignalsOnBothDir(ti_start.tile, (direction & 1) ? 1 : 0);
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:
tron@1977: static bool DoCheckTunnelInWay(TileIndex tile, uint z, uint dir)
truelight@0: {
tron@1977: TileIndexDiff delta = TileOffsByDir(dir);
tron@3055: uint height;
truelight@0:
truelight@0: do {
truelight@0: tile -= delta;
tron@3055: height = GetTileZ(tile);
tron@3056: } while (z < height);
truelight@0:
tron@3056: if (z == height &&
tron@3055: IsTileType(tile, MP_TUNNELBRIDGE) &&
tron@3055: GB(_m[tile].m5, 4, 4) == 0 &&
tron@3055: GB(_m[tile].m5, 0, 2) == dir) {
truelight@0: _error_message = STR_5003_ANOTHER_TUNNEL_IN_THE_WAY;
truelight@0: return false;
truelight@0: }
truelight@0:
truelight@0: return true;
truelight@0: }
truelight@0:
tron@1977: bool CheckTunnelInWay(TileIndex tile, int z)
truelight@0: {
truelight@0: return DoCheckTunnelInWay(tile,z,0) &&
truelight@0: DoCheckTunnelInWay(tile,z,1) &&
truelight@0: DoCheckTunnelInWay(tile,z,2) &&
truelight@0: DoCheckTunnelInWay(tile,z,3);
truelight@0: }
truelight@0:
truelight@0:
Darkvater@1782: /** Build Tunnel.
Darkvater@1782: * @param x,y start tile coord of tunnel
Darkvater@1784: * @param p1 railtype, 0x200 for road tunnel
tron@2639: * @param p2 unused
truelight@0: */
truelight@0: int32 CmdBuildTunnel(int x, int y, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
tron@3063: TileIndexDiff delta;
tron@3063: TileIndex start_tile;
tron@3063: TileIndex end_tile;
tron@3063: DiagDirection direction;
tron@3063: uint start_tileh;
tron@3063: uint 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_tile = TileVirtXY(x, y);
tron@3063: start_tileh = GetTileSlope(start_tile, &start_z);
truelight@0:
tron@3063: switch (start_tileh) {
tron@3063: case 3: direction = DIAGDIR_SW; break;
tron@3063: case 6: direction = DIAGDIR_SE; break;
tron@3063: case 9: direction = DIAGDIR_NW; break;
tron@3063: case 12: direction = DIAGDIR_NE; break;
tron@3063: default: return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL);
tron@2639: }
truelight@0:
tron@3063: ret = DoCommandByTile(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@3063: if (CmdFailed(ret)) return ret;
tron@3063: cost = _price.build_tunnel + ret;
truelight@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@3063: if (!_cheats.crossing_tunnels.value && !CheckTunnelInWay(end_tile, start_z)) {
tron@3063: return CMD_ERROR;
tron@3063: }
tron@3063:
tron@3063: cost += _price.build_tunnel;
tron@3063: cost += cost >> 3;
tron@3063: if (cost >= 400000000) cost = 400000000;
truelight@0: }
truelight@0:
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@3063: if (end_tileh != (15 ^ start_tileh)) {
tron@3063: ret = DoCommandByTile(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@3063: ret = DoCommandByTile(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
tron@3063: if (CmdFailed(ret)) return ret;
tron@3063: cost += ret;
tron@3063: }
tron@3063: cost += _price.build_tunnel;
tron@3063:
tron@3063: if (flags & DC_EXEC) {
tron@3063: SetTileType(start_tile, MP_TUNNELBRIDGE);
tron@3063: SetTileOwner(start_tile, _current_player);
tron@3063: _m[start_tile].m3 = GB(p1, 0, 4); // rail type (if any)
tron@3063: _m[start_tile].m5 = (GB(p1, 9, 1) << 2) | direction; // transport type and entrance direction
tron@3063:
tron@3063: SetTileType(end_tile, MP_TUNNELBRIDGE);
tron@3063: SetTileOwner(end_tile, _current_player);
tron@3063: _m[end_tile].m3 = GB(p1, 0, 4); // rail type (if any)
tron@3063: _m[end_tile].m5 = (GB(p1, 9, 1) << 2) | (direction ^ 2); // transport type and entrance direction
tron@3063:
tron@3063: if (GB(p1, 9, 1) == 0) UpdateSignalsOnSegment(start_tile, direction << 1);
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@2049: byte m5 = _m[tile].m5;
tron@900: int delta = TileOffsByDir(m5 & 3);
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@1035: !IsTileType(tile, MP_TUNNELBRIDGE) ||
tron@2493: GB(_m[tile].m5, 4, 4) != 0 ||
tron@2150: (_m[tile].m5 ^ 2) != m5 ||
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;
Darkvater@1782: static const byte _updsignals_tunnel_dir[4] = { 5, 7, 1, 3};
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@2493: byte tile_dir = GB(_m[tile].m5, 0, 2);
tron@2493: byte endtile_dir = GB(_m[endtile].m5, 0, 2);
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);
darkvater@38: UpdateSignalsOnSegment(tile, _updsignals_tunnel_dir[tile_dir]);
darkvater@38: UpdateSignalsOnSegment(endtile, _updsignals_tunnel_dir[endtile_dir]);
truelight@0: }
tron@2639: return _price.clear_tunnel * (length + 1);
truelight@0: }
truelight@0:
tron@1977: static TileIndex FindEdgesOfBridge(TileIndex tile, TileIndex *endtile)
truelight@0: {
tron@2493: int direction = GB(_m[tile].m5, 0, 1);
tron@1977: TileIndex start;
truelight@0:
truelight@0: // find start of bridge
tron@2952: for (;;) {
tron@2049: if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xE0) == 0x80)
truelight@0: break;
tron@1981: tile += direction ? TileDiffXY(0, -1) : TileDiffXY(-1, 0);
truelight@0: }
truelight@0:
truelight@0: start = tile;
truelight@0:
truelight@0: // find end of bridge
tron@2952: for (;;) {
tron@2049: if (IsTileType(tile, MP_TUNNELBRIDGE) && (_m[tile].m5 & 0xE0) == 0xA0)
truelight@0: break;
tron@1981: tile += direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: }
truelight@0:
truelight@0: *endtile = tile;
truelight@0:
truelight@0: return start;
truelight@0: }
truelight@0:
tron@1977: static int32 DoClearBridge(TileIndex tile, uint32 flags)
truelight@0: {
tron@1977: TileIndex endtile;
truelight@0: Vehicle *v;
truelight@0: Town *t;
truelight@0: int direction;
truelight@193:
truelight@0: SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
truelight@0:
tron@2493: direction = GB(_m[tile].m5, 0, 1);
truelight@0:
truelight@0: /* delete stuff under the middle part if there's a transport route there..? */
tron@2049: if ((_m[tile].m5 & 0xE0) == 0xE0) {
truelight@0: int32 cost;
truelight@0:
truelight@0: // check if we own the tile below the bridge..
tron@1041: if (_current_player != OWNER_WATER && (!CheckTileOwnership(tile) || !EnsureNoVehicleZ(tile, TilePixelHeight(tile))))
truelight@0: return CMD_ERROR;
truelight@193:
tron@2049: cost = (_m[tile].m5 & 8) ? _price.remove_road * 2 : _price.remove_rail;
truelight@0:
truelight@0: if (flags & DC_EXEC) {
tron@2049: _m[tile].m5 = _m[tile].m5 & ~0x38;
tron@1902: SetTileOwner(tile, OWNER_NONE);
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: return cost;
truelight@193:
truelight@0: /* delete canal under bridge */
tron@2049: } else if ((_m[tile].m5 & 0xC8) == 0xC8 && TilePixelHeight(tile) != 0) {
truelight@0: int32 cost;
truelight@193:
truelight@0: // check for vehicles under bridge
tron@2639: if (!EnsureNoVehicleZ(tile, TilePixelHeight(tile))) return CMD_ERROR;
truelight@0: cost = _price.clear_water;
truelight@0: if (flags & DC_EXEC) {
tron@2049: _m[tile].m5 = _m[tile].m5 & ~0x38;
tron@1902: SetTileOwner(tile, OWNER_NONE);
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: return cost;
truelight@0: }
truelight@0:
truelight@0: tile = FindEdgesOfBridge(tile, &endtile);
truelight@0:
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@2639: if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(endtile)) return CMD_ERROR;
truelight@0:
truelight@0: /* Make sure there's no vehicle on the bridge
truelight@0: Omit tile and endtile, since these are already checked, thus solving the problem
truelight@0: of bridges over water, or higher bridges, where z is not increased, eg level bridge
truelight@0: */
tron@1981: tile += direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
tron@1981: endtile -= direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
darkvater@1082: /* Bridges on slopes might have their Z-value offset..correct this */
tron@2639: v = FindVehicleBetween(tile, endtile, TilePixelHeight(tile) + 8 + GetCorrectTileHeight(tile));
tron@2639: if (v != NULL) {
truelight@193: VehicleInTheWayErrMsg(v);
truelight@0: return CMD_ERROR;
truelight@0: }
truelight@0:
truelight@0: /* Put the tiles back to start/end position */
tron@1981: tile -= direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
tron@1981: endtile += direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0:
truelight@193:
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) {
truelight@0: byte m5;
truelight@0: uint c = tile;
truelight@0: uint16 new_data;
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:
truelight@0: do {
tron@2049: m5 = _m[c].m5;
truelight@0:
truelight@0: if (m5 & 0x40) {
truelight@0: if (m5 & 0x20) {
truelight@0: static const uint16 _new_data_table[] = {0x1002, 0x1001, 0x2005, 0x200A, 0, 0, 0, 0};
tron@2639: new_data = _new_data_table[((m5 & 0x18) >> 2) | (m5 & 1)];
truelight@0: } else {
tron@2635: if (GB(m5, 3, 2) == 0) goto clear_it;
tron@1091: new_data = (GetTileSlope(c, NULL) == 0) ? 0x6000 : 0x6001;
truelight@0: }
truelight@0:
tron@1059: SetTileType(c, new_data >> 12);
tron@2049: _m[c].m5 = (byte)new_data;
tron@2049: _m[c].m2 = 0;
tron@2049: _m[c].m4 &= 0x0F;
truelight@0:
truelight@0: MarkTileDirtyByTile(c);
truelight@0:
truelight@0: } else {
truelight@0: clear_it:;
truelight@0: DoClearSquare(c);
truelight@0: }
tron@1981: c += direction ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: } while (c <= endtile);
truelight@0:
truelight@0: SetSignalsOnBothDir(tile, direction);
truelight@0: SetSignalsOnBothDir(endtile, direction);
truelight@0: }
truelight@0:
tron@2931: if (direction) {
tron@2931: return (TileY(endtile) - TileY(tile) + 1) * _price.clear_bridge;
tron@2931: } else {
tron@2931: return (TileX(endtile) - TileX(tile) + 1) * _price.clear_bridge;
tron@2931: }
truelight@0: }
truelight@0:
tron@1977: static int32 ClearTile_TunnelBridge(TileIndex tile, byte flags)
tron@1977: {
tron@2049: byte m5 = _m[tile].m5;
truelight@0:
truelight@0: if ((m5 & 0xF0) == 0) {
tron@2639: if (flags & DC_AUTO) return_cmd_error(STR_5006_MUST_DEMOLISH_TUNNEL_FIRST);
truelight@0: return DoClearTunnel(tile, flags);
truelight@0: } else if (m5 & 0x80) {
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:
tron@1977: int32 DoConvertTunnelBridgeRail(TileIndex tile, uint totype, bool exec)
truelight@0: {
Darkvater@1782: TileIndex endtile;
tron@1430: uint length;
truelight@0: Vehicle *v;
truelight@0:
tron@2049: if ((_m[tile].m5 & 0xFC) == 0x00) {
truelight@0: // railway tunnel
truelight@0: if (!CheckTileOwnership(tile)) return CMD_ERROR;
truelight@0:
tron@2493: if (GB(_m[tile].m3, 0, 4) == 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@2493: SB(_m[tile].m3, 0, 4, totype);
tron@2493: SB(_m[endtile].m3, 0, 4, totype);
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: MarkTileDirtyByTile(endtile);
truelight@0: }
truelight@0: return (length + 1) * (_price.build_rail >> 1);
tron@2049: } else if ((_m[tile].m5 & 0xF8) == 0xE0) {
truelight@0: // bridge middle part with rail below
truelight@0: // only check for train under bridge
tron@1041: if (!CheckTileOwnership(tile) || !EnsureNoVehicleZ(tile, TilePixelHeight(tile)))
truelight@0: return CMD_ERROR;
truelight@0:
truelight@0: // tile is already of requested type?
tron@2493: if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
truelight@0: // change type.
truelight@0: if (exec) {
tron@2493: SB(_m[tile].m3, 0, 4, totype);
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: return _price.build_rail >> 1;
tron@2639: } else if ((_m[tile].m5 & 0xC6) == 0x80) {
Darkvater@1782: TileIndex starttile;
truelight@0: int32 cost;
celestar@1073: uint z = TilePixelHeight(tile);
celestar@1073:
celestar@1073: z += 8;
truelight@0:
truelight@0: if (!CheckTileOwnership(tile)) return CMD_ERROR;
truelight@0:
truelight@0: // railway bridge
truelight@0: starttile = tile = FindEdgesOfBridge(tile, &endtile);
truelight@0: // Make sure there's no vehicle on the bridge
tron@2639: v = FindVehicleBetween(tile, endtile, z);
tron@2639: if (v != NULL) {
truelight@193: VehicleInTheWayErrMsg(v);
truelight@0: return CMD_ERROR;
truelight@0: }
truelight@0:
celestar@1073: if (!EnsureNoVehicle(starttile) || !EnsureNoVehicle(endtile)) {
celestar@1073: _error_message = STR_8803_TRAIN_IN_THE_WAY;
celestar@1073: return CMD_ERROR;
celestar@1073: }
celestar@1073:
tron@2493: if (GB(_m[tile].m3, 0, 4) == totype) return CMD_ERROR;
truelight@0: cost = 0;
truelight@0: do {
truelight@0: if (exec) {
truelight@0: if (tile == starttile || tile == endtile) {
tron@2493: SB(_m[tile].m3, 0, 4, totype);
truelight@0: } else {
tron@2493: SB(_m[tile].m3, 4, 4, totype);
truelight@0: }
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
tron@2639: cost += _price.build_rail >> 1;
tron@2493: tile += GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: } while (tile <= endtile);
truelight@0:
truelight@0: return cost;
truelight@193: } else
truelight@0: return CMD_ERROR;
truelight@0: }
truelight@0:
truelight@0:
truelight@0: // fast routine for getting the height of a middle bridge tile. 'tile' MUST be a middle bridge tile.
tron@1095: static uint GetBridgeHeight(const TileInfo *ti)
truelight@0: {
tron@1981: TileIndexDiff delta;
tron@1192: TileIndex tile = ti->tile;
truelight@0:
truelight@0: // find the end tile of the bridge.
tron@2493: delta = GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
truelight@0: do {
tron@2049: assert((_m[tile].m5 & 0xC0) == 0xC0); // bridge and middle part
truelight@0: tile += delta;
tron@2049: } while (_m[tile].m5 & 0x40); // while bridge middle parts
truelight@0:
tron@1192: /* Return the height there (the height of the NORTH CORNER)
tron@1192: * If the end of the bridge is on a tileh 7 (all raised, except north corner),
tron@1192: * the z coordinate is 1 height level too low. Compensate for that */
tron@1192: return TilePixelHeight(tile) + (GetTileSlope(tile, NULL) == 7 ? 8 : 0);
truelight@0: }
truelight@0:
truelight@0: static const byte _bridge_foundations[2][16] = {
truelight@0: // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
truelight@0: {1,16,18,3,20,5,0,7,22,0,10,11,12,13,14},
truelight@0: {1,15,17,0,19,5,6,7,21,9,10,11, 0,13,14},
truelight@0: };
truelight@0:
truelight@0: extern const byte _road_sloped_sprites[14];
truelight@0:
Darkvater@2436: static void DrawBridgePillars(const TileInfo *ti, int x, int y, int z)
truelight@0: {
celestar@2536: const PalSpriteID *b;
celestar@2536: PalSpriteID image;
truelight@0: int piece;
truelight@0:
celestar@2262: b = _bridge_poles_table[GetBridgeType(ti->tile)];
truelight@0:
truelight@0: // Draw first piece
truelight@0: // (necessary for cantilever bridges)
celestar@2262:
tron@2642: image = b[12 + GB(ti->map5, 0, 1)];
celestar@2262: piece = GetBridgePiece(ti->tile);
celestar@2262:
tron@333: if (image != 0 && piece != 0) {
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
tron@333: DrawGroundSpriteAt(image, x, y, z);
tron@333: }
truelight@0:
tron@2642: image = b[GB(ti->map5, 0, 1) * 6 + piece];
truelight@0:
truelight@0: if (image != 0) {
truelight@0: int back_height, front_height, i=z;
truelight@0: const byte *p;
truelight@0:
truelight@0: static const byte _tileh_bits[4][8] = {
truelight@0: {2,1,8,4, 16,11,0,9},
truelight@0: {1,8,4,2, 11,16,9,0},
truelight@0: {4,8,1,2, 16,11,0,9},
truelight@0: {2,4,8,1, 11,16,9,0},
truelight@0: };
truelight@0:
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
tron@333:
truelight@0: p = _tileh_bits[(image & 1) * 2 + (ti->map5&0x01)];
truelight@0: front_height = ti->z + ((ti->tileh & p[0])?8:0);
truelight@0: back_height = ti->z + ((ti->tileh & p[1])?8:0);
celestar@2262:
celestar@2085: if (IsSteepTileh(ti->tileh)) {
truelight@0: if (!(ti->tileh & p[2])) front_height += 8;
truelight@0: if (!(ti->tileh & p[3])) back_height += 8;
truelight@0: }
truelight@0:
tron@2952: for (; z >= front_height || z >= back_height; z = z - 8) {
tron@2952: if (z >= front_height) {
tron@2952: // front facing pillar
tron@2952: AddSortableSpriteToDraw(image, x,y, p[4], p[5], 0x28, z);
tron@2952: }
tron@2952: if (z >= back_height && z < i - 8) {
tron@2952: // back facing pillar
tron@2952: AddSortableSpriteToDraw(image, x - p[6], y - p[7], p[4], p[5], 0x28, z);
tron@2952: }
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0:
tron@2639: uint GetBridgeFoundation(uint tileh, byte direction)
tron@2639: {
truelight@0: int i;
truelight@0: // normal level sloped building (7, 11, 13, 14)
tron@3017: if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << tileh)) return tileh;
truelight@0:
truelight@0: // inclined sloped building
tron@3017: if ((
tron@3017: (i = 0, tileh == 1) ||
tron@3017: (i += 2, tileh == 2) ||
tron@3017: (i += 2, tileh == 4) ||
tron@3017: (i += 2, tileh == 8)
tron@3017: ) && (
tron@3017: direction == 0 ||
tron@3017: (i++, direction == 1)
tron@3017: )) {
truelight@0: return i + 15;
tron@3017: }
truelight@0:
truelight@0: return 0;
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: *
- Bit 0: direction
celestar@2536: * - Bit 1: northern or southern heads
celestar@2536: * - Bit 2: Set if the bridge head is sloped
celestar@2536: * - Bit 3 and more: Railtype Specific subset
celestar@2536: *
celestar@2536: * For middle parts:
celestar@2536: * - Bits 0-1: need to be 0
celestar@2536: * - Bit 2: direction
celestar@2536: * - Bit 3 and above: Railtype Specific subset
celestar@2536: *
celestar@2536: * Please note that in this code, "roads" are treated as railtype 1, whilst the real railtypes are 0, 2 and 3
celestar@2536: */
truelight@0: static void DrawTile_TunnelBridge(TileInfo *ti)
truelight@0: {
truelight@0: uint32 image;
celestar@2536: const PalSpriteID *b;
tron@2049: bool ice = _m[ti->tile].m4 & 0x80;
truelight@193:
truelight@193: // draw tunnel?
tron@2150: if ((ti->map5 & 0xF0) == 0) {
tron@2511: if (GB(ti->map5, 2, 2) == 0) { /* Rail tunnel? */
tron@2511: image = GetRailTypeInfo(GB(_m[ti->tile].m3, 0, 4))->base_sprites.tunnel;
tron@2511: } else {
tron@2511: image = SPR_TUNNEL_ENTRY_REAR_ROAD;
tron@2511: }
truelight@0:
tron@2511: if (ice) image += 32;
truelight@0:
tron@2140: image += GB(ti->map5, 0, 2) * 2;
truelight@0: DrawGroundSprite(image);
truelight@0:
truelight@0: AddSortableSpriteToDraw(image+1, ti->x + 15, ti->y + 15, 1, 1, 8, (byte)ti->z);
truelight@0: // draw bridge?
tron@2644: } else if (ti->map5 & 0x80) {
celestar@2536: RailType rt;
celestar@2536: int base_offset;
truelight@0:
celestar@2536: if (HASBIT(ti->map5, 1)) { /* This is a road bridge */
celestar@2536: base_offset = 8;
celestar@2536: } else { /* Rail bridge */
celestar@2536: if (HASBIT(ti->map5, 6)) { /* The bits we need depend on the fact whether it is a bridge head or not */
celestar@2536: rt = GB(_m[ti->tile].m3, 4, 3);
celestar@2536: } else {
celestar@2536: rt = GB(_m[ti->tile].m3, 0, 3);
celestar@2536: }
truelight@0:
celestar@2536: base_offset = GetRailTypeInfo(rt)->bridge_offset;
celestar@2536: assert(base_offset != 8); /* This one is used for roads */
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:
truelight@0: if (!(ti->map5 & 0x40)) { // bridge ramps
truelight@0: if (!(BRIDGE_NO_FOUNDATION & (1 << ti->tileh))) { // no foundations for 0, 3, 6, 9, 12
truelight@0: int f = GetBridgeFoundation(ti->tileh, ti->map5 & 0x1); // pass direction
truelight@0: if (f) DrawFoundation(ti, f);
truelight@193:
truelight@0: // default sloped sprites..
tron@2517: if (ti->tileh != 0) image = SPR_RAIL_TRACK_Y + _track_sloped_sprites[ti->tileh - 1];
truelight@0: }
truelight@0:
celestar@2536: /* Cope for the direction of the bridge */
celestar@2536: if (HASBIT(ti->map5, 0)) base_offset++;
truelight@193:
celestar@2536: if (ti->map5 & 0x20) base_offset += 2; // which side
celestar@2536: if (ti->tileh == 0) base_offset += 4; // sloped bridge head
celestar@2536:
celestar@2536: /* Table number 6 always refers to the bridge heads for any bridge type */
celestar@2536: image = GetBridgeSpriteTable(GetBridgeType(ti->tile), 6)[base_offset];
truelight@0:
truelight@0: if (!ice) {
truelight@0: DrawClearLandTile(ti, 3);
truelight@0: } else {
tron@2517: DrawGroundSprite(SPR_FLAT_SNOWY_TILE + _tileh_to_sprite[ti->tileh]);
truelight@0: }
truelight@0:
truelight@0: // draw ramp
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
truelight@0: AddSortableSpriteToDraw(image, ti->x, ti->y, 16, 16, 7, ti->z);
truelight@0: } else {
truelight@0: // bridge middle part.
truelight@0: uint z;
truelight@0: int x,y;
truelight@0:
tron@2140: image = GB(ti->map5, 3, 2); // type of stuff under bridge (only defined for 0,1)
celestar@2536: /** @todo So why do we even WASTE that one bit?! (map5, bit 4) */
truelight@0: assert(image <= 1);
truelight@0:
truelight@0: if (!(ti->map5 & 0x20)) {
truelight@0: // draw land under bridge
celestar@2254: if (ice) image += 2;
tron@1091:
tron@3017: if (image != 1 || ti->tileh == 0) {
tron@1091: DrawGroundSprite(_bridge_land_below[image] + _tileh_to_sprite[ti->tileh]);
tron@3017: } else {
tron@1091: DrawGroundSprite(_water_shore_sprites[ti->tileh]);
tron@3017: }
truelight@0:
truelight@0: // draw canal water?
truelight@0: if (ti->map5 & 8 && ti->z != 0) DrawCanalWater(ti->tile);
truelight@0: } else {
truelight@0: // draw transport route under bridge
truelight@193:
truelight@0: // draw foundation?
truelight@0: if (ti->tileh) {
truelight@0: int f = _bridge_foundations[ti->map5&1][ti->tileh];
truelight@0: if (f) DrawFoundation(ti, f);
truelight@0: }
truelight@0:
truelight@0: if (!(image&1)) {
tron@2493: const RailtypeInfo *rti = GetRailTypeInfo(GB(_m[ti->tile].m3, 0, 4));
truelight@0: // railway
tron@2535: image = SPR_RAIL_TRACK_Y + (ti->map5 & 1);
tron@2535: if (ti->tileh != 0) image = SPR_RAIL_TRACK_Y + _track_sloped_sprites[ti->tileh - 1];
celestar@2254: image += rti->total_offset;
celestar@2254: if (ice) image += rti->snow_offset;
truelight@0: } else {
truelight@0: // road
tron@2535: image = SPR_ROAD_Y + (ti->map5 & 1);
truelight@0: if (ti->tileh != 0) image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
celestar@2536: if (ice) image += 19;
truelight@0: }
truelight@0: DrawGroundSprite(image);
truelight@0: }
celestar@2536:
celestar@2536: /* Cope for the direction of the bridge */
celestar@2536: if (HASBIT(ti->map5, 0)) base_offset += 4;
celestar@2536:
celestar@2536: /* base_offset needs to be 0 due to the structure of the sprite table see table/bridge_land.h */
celestar@2536: assert( (base_offset & 0x03) == 0x00);
truelight@0: // get bridge sprites
celestar@2536: b = GetBridgeSpriteTable(GetBridgeType(ti->tile), GetBridgePiece(ti->tile)) + base_offset;
truelight@0:
truelight@0: z = GetBridgeHeight(ti) + 5;
truelight@193:
celestar@2536: // draw rail or road component
truelight@0: image = b[0];
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
truelight@0: AddSortableSpriteToDraw(image, ti->x, ti->y, (ti->map5&1)?11:16, (ti->map5&1)?16:11, 1, z);
truelight@0:
truelight@0: x = ti->x;
truelight@0: y = ti->y;
truelight@0: image = b[1];
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
truelight@0:
celestar@2536: // draw roof, the component of the bridge which is logically between the vehicle and the camera
tron@3017: if (ti->map5 & 1) {
truelight@0: x += 12;
celestar@2187: if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x,y, 1, 16, 0x28, z);
truelight@0: } else {
truelight@0: y += 12;
celestar@2187: if (image & SPRITE_MASK) AddSortableSpriteToDraw(image, x,y, 16, 1, 0x28, z);
truelight@0: }
truelight@193:
tron@3017: if (ti->z + 5 == z) {
truelight@0: // draw poles below for small bridges
truelight@0: image = b[2];
tron@3017: if (image != 0) {
celestar@2148: if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
truelight@0: DrawGroundSpriteAt(image, x, y, z);
truelight@0: }
truelight@0: } else if (_patches.bridge_pillars) {
truelight@0: // draw pillars below for high bridges
truelight@0: DrawBridgePillars(ti, x, y, z);
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0:
tron@2537: static uint GetSlopeZ_TunnelBridge(const TileInfo* ti)
tron@2537: {
truelight@0: uint z = ti->z;
truelight@0: uint x = ti->x & 0xF;
truelight@0: uint y = ti->y & 0xF;
tron@2537: uint tileh = ti->tileh;
truelight@0:
truelight@0: // swap directions if Y tunnel/bridge to let the code handle the X case only.
hackykid@1884: if (ti->map5 & 1) uintswap(x,y);
truelight@0:
truelight@0: // to the side of the tunnel/bridge?
truelight@0: if (IS_INT_INSIDE(y, 5, 10+1)) {
truelight@0: // tunnel?
tron@2639: if ((ti->map5 & 0xF0) == 0) return z;
truelight@0:
truelight@193: // bridge?
tron@2639: if (ti->map5 & 0x80) {
truelight@0: // bridge ending?
truelight@0: if (!(ti->map5 & 0x40)) {
tron@2537: if (BRIDGE_FULL_LEVELED_FOUNDATION & (1 << tileh)) // 7, 11, 13, 14
truelight@0: z += 8;
truelight@0:
truelight@0: // no ramp for bridge ending
tron@2537: if ((BRIDGE_PARTLY_LEVELED_FOUNDATION & (1 << tileh) || BRIDGE_NO_FOUNDATION & (1 << tileh)) && tileh != 0) {
truelight@0: return z + 8;
truelight@0: } else if (!(ti->map5 & 0x20)) { // northern / southern ending
truelight@0: // ramp
tron@3017: return z + (x >> 1) + 1;
truelight@0: } else {
truelight@0: // ramp in opposite dir
tron@3017: return z + ((x ^ 0xF) >> 1);
truelight@0: }
truelight@193:
truelight@0: // bridge middle part
truelight@0: } else {
truelight@0: // build on slopes?
tron@2537: if (tileh != 0) z += 8;
truelight@0:
truelight@0: // keep the same elevation because we're on the bridge?
tron@2639: if (_get_z_hint >= z + 8) return _get_z_hint;
truelight@193:
truelight@0: // actually on the bridge, but not yet in the shared area.
tron@2639: if (!IS_INT_INSIDE(x, 5, 10 + 1)) return GetBridgeHeight(ti) + 8;
truelight@0:
truelight@0: // in the shared area, assume that we're below the bridge, cause otherwise the hint would've caught it.
truelight@0: // if rail or road below then it means it's possibly build on slope below the bridge.
truelight@0: if (ti->map5 & 0x20) {
tron@2537: uint f = _bridge_foundations[ti->map5 & 1][tileh];
truelight@0: // make sure that the slope is not inclined foundation
truelight@0: if (IS_BYTE_INSIDE(f, 1, 15)) return z;
truelight@193:
Darkvater@2436: // change foundation type? XXX - should be const; accessor function!
tron@2537: if (f != 0) tileh = _inclined_tileh[f - 15];
truelight@0: }
truelight@193:
truelight@0: // no transport route, fallback to default
truelight@0: }
truelight@0: }
truelight@0: } else {
truelight@0: // if it's a bridge middle with transport route below, then we need to compensate for build on slopes
tron@2639: if ((ti->map5 & (0x80 | 0x40 | 0x20)) == (0x80 | 0x40 | 0x20)) {
truelight@0: uint f;
tron@2537: if (tileh != 0) z += 8;
tron@2639: f = _bridge_foundations[ti->map5 & 1][tileh];
truelight@0: if (IS_BYTE_INSIDE(f, 1, 15)) return z;
tron@2537: if (f != 0) tileh = _inclined_tileh[f - 15];
truelight@0: }
truelight@0: }
truelight@0:
truelight@0: // default case
tron@2639: return GetPartialZ(ti->x & 0xF, ti->y & 0xF, tileh) + ti->z;
truelight@0: }
truelight@0:
tron@2639: static uint GetSlopeTileh_TunnelBridge(const TileInfo* ti)
tron@2639: {
dominik@39: // not accurate, but good enough for slope graphics drawing
dominik@39: return 0;
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:
truelight@0: static const StringID _bridge_tile_str[(MAX_BRIDGES + 3) + (MAX_BRIDGES + 3)] = {
truelight@0: STR_501F_WOODEN_RAIL_BRIDGE,
truelight@0: STR_5020_CONCRETE_RAIL_BRIDGE,
truelight@0: STR_501C_STEEL_GIRDER_RAIL_BRIDGE,
truelight@0: STR_501E_REINFORCED_CONCRETE_SUSPENSION,
truelight@0: STR_501B_STEEL_SUSPENSION_RAIL_BRIDGE,
truelight@0: STR_501B_STEEL_SUSPENSION_RAIL_BRIDGE,
truelight@0: STR_501D_STEEL_CANTILEVER_RAIL_BRIDGE,
truelight@0: STR_501D_STEEL_CANTILEVER_RAIL_BRIDGE,
truelight@0: STR_501D_STEEL_CANTILEVER_RAIL_BRIDGE,
truelight@0: STR_501C_STEEL_GIRDER_RAIL_BRIDGE,
truelight@0: STR_5027_TUBULAR_RAIL_BRIDGE,
truelight@0: STR_5027_TUBULAR_RAIL_BRIDGE,
truelight@0: STR_5027_TUBULAR_RAIL_BRIDGE,
truelight@0: 0,0,0,
truelight@0:
truelight@0: STR_5025_WOODEN_ROAD_BRIDGE,
truelight@0: STR_5026_CONCRETE_ROAD_BRIDGE,
truelight@0: STR_5022_STEEL_GIRDER_ROAD_BRIDGE,
truelight@0: STR_5024_REINFORCED_CONCRETE_SUSPENSION,
truelight@0: STR_5021_STEEL_SUSPENSION_ROAD_BRIDGE,
truelight@0: STR_5021_STEEL_SUSPENSION_ROAD_BRIDGE,
truelight@0: STR_5023_STEEL_CANTILEVER_ROAD_BRIDGE,
truelight@0: STR_5023_STEEL_CANTILEVER_ROAD_BRIDGE,
truelight@0: STR_5023_STEEL_CANTILEVER_ROAD_BRIDGE,
truelight@0: STR_5022_STEEL_GIRDER_ROAD_BRIDGE,
truelight@0: STR_5028_TUBULAR_ROAD_BRIDGE,
truelight@0: STR_5028_TUBULAR_ROAD_BRIDGE,
truelight@0: STR_5028_TUBULAR_ROAD_BRIDGE,
truelight@0: 0,0,0,
truelight@0: };
truelight@0:
tron@1977: static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
truelight@0: {
tron@2049: if ((_m[tile].m5 & 0x80) == 0) {
tron@2260: td->str =
tron@2260: (GB(_m[tile].m5, 2, 2) == 0) ? STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
truelight@0: } else {
tron@2140: td->str = _bridge_tile_str[GB(_m[tile].m5, 1, 2) << 4 | GB(_m[tile].m2, 4, 4)];
truelight@0:
truelight@0: /* scan to the end of the bridge, that's where the owner is stored */
tron@2049: if (_m[tile].m5 & 0x40) {
tron@2493: TileIndexDiff delta = GB(_m[tile].m5, 0, 1) ? TileDiffXY(0, -1) : TileDiffXY(-1, 0);
tron@1981:
tron@2049: do tile += delta; while (_m[tile].m5 & 0x40);
truelight@0: }
truelight@0: }
tron@1901: td->owner = 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: {
tron@3017: switch (_opt.landscape) {
tron@3017: case LT_HILLY:
tron@3017: if (GetTileZ(tile) > _opt.snow_line) {
tron@3017: if (!(_m[tile].m4 & 0x80)) {
tron@3017: _m[tile].m4 |= 0x80;
tron@3017: MarkTileDirtyByTile(tile);
tron@3017: }
tron@3017: } else {
tron@3017: if (_m[tile].m4 & 0x80) {
tron@3017: _m[tile].m4 &= ~0x80;
tron@3017: MarkTileDirtyByTile(tile);
tron@3017: }
tron@3017: }
tron@3017: break;
tron@3017:
tron@3017: case LT_DESERT:
tron@3017: if (GetMapExtraBits(tile) == 1 && !(_m[tile].m4 & 0x80)) {
tron@2049: _m[tile].m4 |= 0x80;
truelight@0: MarkTileDirtyByTile(tile);
truelight@0: }
tron@3017: break;
truelight@0: }
truelight@0:
truelight@0: // if it's a bridge with water below, call tileloop_water on it.
tron@2049: if ((_m[tile].m5 & 0xF8) == 0xC8) TileLoop_Water(tile);
truelight@0: }
truelight@0:
tron@1977: static void ClickTile_TunnelBridge(TileIndex tile)
truelight@0: {
truelight@0: /* not used */
truelight@0: }
truelight@0:
truelight@0:
tron@1977: static uint32 GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode)
truelight@0: {
truelight@0: uint32 result;
tron@2049: byte m5 = _m[tile].m5;
truelight@0:
truelight@0: if ((m5 & 0xF0) == 0) {
truelight@159: /* This is a tunnel */
tron@2635: if (GB(m5, 2, 2) == mode) {
truelight@159: /* Tranport in the tunnel is compatible */
truelight@0: return m5&1 ? 0x202 : 0x101;
truelight@0: }
truelight@0: } else if (m5 & 0x80) {
truelight@159: /* This is a bridge */
truelight@0: result = 0;
tron@2635: if (GB(m5, 1, 2) == mode) {
truelight@159: /* Transport over the bridge is compatible */
tron@2639: result = m5 & 1 ? 0x202 : 0x101;
truelight@0: }
truelight@0: if (m5 & 0x40) {
truelight@159: /* Bridge middle part */
truelight@159: if (!(m5 & 0x20)) {
truelight@159: /* Clear ground or water underneath */
tron@2639: if ((m5 & 0x18) != 8) {
truelight@159: /* Clear ground */
truelight@0: return result;
tron@2639: } else {
tron@2639: if (mode != TRANSPORT_WATER) return result;
tron@2639: }
truelight@159: } else {
truelight@159: /* Transport underneath */
tron@2639: if (GB(m5, 3, 2) != mode) {
truelight@159: /* Incompatible transport underneath */
truelight@159: return result;
tron@2639: }
truelight@0: }
truelight@159: /* If we've not returned yet, there is a compatible
truelight@159: * transport or water beneath, so we can add it to
truelight@159: * result */
truelight@159: /* Why is this xor'd ? Can't it just be or'd? */
tron@2639: result ^= m5 & 1 ? 0x101 : 0x202;
truelight@0: }
truelight@0: return result;
truelight@159: } else {
truelight@159: assert(0); /* This should never occur */
truelight@0: }
truelight@0: return 0;
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:
tron@2502: if (new_player != OWNER_SPECTATOR) {
tron@1902: SetTileOwner(tile, new_player);
truelight@0: } else {
tron@2639: if ((_m[tile].m5 & 0xC0) == 0xC0) {
truelight@0: // the stuff BELOW the middle part is owned by the deleted player.
tron@2049: if (!(_m[tile].m5 & (1 << 4 | 1 << 3))) {
truelight@0: // convert railway into grass.
tron@2049: _m[tile].m5 &= ~(1 << 5 | 1 << 4 | 1 << 3); // no transport route under bridge anymore..
truelight@0: } else {
truelight@0: // for road, change the owner of the road to local authority
tron@1902: SetTileOwner(tile, OWNER_NONE);
truelight@0: }
truelight@0: } else {
truelight@0: DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0:
truelight@0:
truelight@0: static const byte _tunnel_fractcoord_1[4] = {0x8E,0x18,0x81,0xE8};
truelight@0: static const byte _tunnel_fractcoord_2[4] = {0x81,0x98,0x87,0x38};
truelight@0: static const byte _tunnel_fractcoord_3[4] = {0x82,0x88,0x86,0x48};
truelight@0: static const byte _exit_tunnel_track[4] = {1,2,1,2};
truelight@0:
truelight@0: static const byte _road_exit_tunnel_state[4] = {8, 9, 0, 1};
truelight@0: static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
truelight@0:
truelight@0: static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
truelight@0: static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
truelight@0: static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
truelight@0: static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
truelight@0:
tron@1977: static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
truelight@0: {
truelight@0: int dir, vdir;
truelight@0:
tron@2493: if (GB(_m[tile].m5, 4, 4) == 0) {
tron@2989: int z = GetSlopeZ(x, y) - v->z_pos;
tron@2989: byte fc;
tron@2989:
tron@2951: if (myabs(z) > 2) return 8;
truelight@0:
truelight@0: if (v->type == VEH_Train) {
tron@2951: fc = (x & 0xF) + (y << 4);
truelight@193:
tron@2493: dir = GB(_m[tile].m5, 0, 2);
truelight@0: vdir = v->direction >> 1;
truelight@0:
truelight@0: if (v->u.rail.track != 0x40 && dir == vdir) {
bjarni@2676: if (IsFrontEngine(v) && fc == _tunnel_fractcoord_1[dir]) {
truelight@0: if (v->spritenum < 4)
tron@541: SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
truelight@0: return 0;
truelight@0: }
truelight@0: if (fc == _tunnel_fractcoord_2[dir]) {
truelight@0: v->tile = tile;
truelight@0: v->u.rail.track = 0x40;
truelight@0: v->vehstatus |= VS_HIDDEN;
truelight@0: return 4;
truelight@0: }
truelight@0: }
truelight@0:
truelight@0: if (dir == (vdir^2) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
darkvater@22: /* We're at the tunnel exit ?? */
truelight@0: v->tile = tile;
truelight@0: v->u.rail.track = _exit_tunnel_track[dir];
matthijs@1330: assert(v->u.rail.track);
truelight@0: v->vehstatus &= ~VS_HIDDEN;
truelight@0: return 4;
truelight@0: }
truelight@0: } else if (v->type == VEH_Road) {
tron@2951: fc = (x & 0xF) + (y << 4);
tron@2493: dir = GB(_m[tile].m5, 0, 2);
truelight@0: vdir = v->direction >> 1;
truelight@0:
truelight@0: // Enter tunnel?
truelight@0: if (v->u.road.state != 0xFF && dir == vdir) {
truelight@0: if (fc == _tunnel_fractcoord_4[dir] ||
truelight@0: fc == _tunnel_fractcoord_5[dir]) {
truelight@0: v->tile = tile;
truelight@0: v->u.road.state = 0xFF;
truelight@193: v->vehstatus |= VS_HIDDEN;
truelight@0: return 4;
truelight@0: } else {
truelight@0: return 0;
truelight@0: }
truelight@0: }
truelight@0:
tron@2951: if (dir == (vdir ^ 2) && (
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;
truelight@0: return 4;
truelight@0: }
truelight@0: }
tron@2049: } else if (_m[tile].m5 & 0x80) {
bjarni@2676: if (v->type == VEH_Road || (v->type == VEH_Train && IsFrontEngine(v))) {
tron@1335: uint h;
tron@1335:
tron@3017: // Compensate for possible foundation
tron@3017: if (GetTileSlope(tile, &h) != 0) h += 8;
tron@2049: if (!(_m[tile].m5 & 0x40) || // start/end tile of bridge
tron@334: myabs(h - v->z_pos) > 2) { // high above the ground -> on the bridge
truelight@0: /* modify speed of vehicle */
celestar@2262: uint16 spd = _bridge[GetBridgeType(tile)].speed;
tron@2639: if (v->type == VEH_Road) spd *= 2;
tron@3017: if (v->cur_speed > spd) v->cur_speed = spd;
truelight@0: }
truelight@0: }
truelight@0: }
truelight@0: return 0;
truelight@0: }
truelight@0:
tron@1587: TileIndex GetVehicleOutOfTunnelTile(const Vehicle *v)
truelight@0: {
tron@1587: TileIndex tile;
tron@1981: TileIndexDiff delta = (v->direction & 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
tron@1587: byte z = v->z_pos;
truelight@0:
tron@1587: for (tile = v->tile;; tile += delta) {
tron@2493: if (IsTileType(tile, MP_TUNNELBRIDGE) && GB(_m[tile].m5, 4, 4) == 0 &&
tron@1587: GetTileZ(tile) == z)
truelight@0: break;
truelight@0: }
truelight@0: return tile;
truelight@0: }
truelight@0:
truelight@0: const TileTypeProcs _tile_type_tunnelbridge_procs = {
truelight@0: DrawTile_TunnelBridge, /* draw_tile_proc */
truelight@0: GetSlopeZ_TunnelBridge, /* get_slope_z_proc */
truelight@0: ClearTile_TunnelBridge, /* clear_tile_proc */
truelight@0: GetAcceptedCargo_TunnelBridge, /* get_accepted_cargo_proc */
truelight@0: GetTileDesc_TunnelBridge, /* get_tile_desc_proc */
truelight@0: GetTileTrackStatus_TunnelBridge,/* get_tile_track_status_proc */
truelight@0: ClickTile_TunnelBridge, /* click_tile_proc */
truelight@0: AnimateTile_TunnelBridge, /* animate_tile_proc */
truelight@0: TileLoop_TunnelBridge, /* tile_loop_clear */
truelight@0: ChangeTileOwner_TunnelBridge, /* change_tile_owner_clear */
truelight@0: NULL, /* get_produced_cargo_proc */
truelight@0: VehicleEnter_TunnelBridge, /* vehicle_enter_tile_proc */
truelight@0: NULL, /* vehicle_leave_tile_proc */
dominik@39: GetSlopeTileh_TunnelBridge, /* get_slope_tileh_proc */
truelight@0: };