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2091 lines
58 KiB
C
2091 lines
58 KiB
C
/* $Id$ */
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#include "stdafx.h"
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#include "openttd.h"
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#include "bridge_map.h"
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#include "debug.h"
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#include "functions.h"
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#include "rail_map.h"
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#include "road_map.h"
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#include "table/sprites.h"
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#include "table/strings.h"
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#include "map.h"
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#include "tile.h"
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#include "town_map.h"
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#include "tunnel_map.h"
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#include "vehicle.h"
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#include "viewport.h"
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#include "command.h"
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#include "pathfind.h"
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#include "engine.h"
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#include "town.h"
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#include "sound.h"
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#include "station.h"
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#include "sprite.h"
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#include "depot.h"
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#include "waypoint.h"
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#include "rail.h"
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#include "railtypes.h" // include table for railtypes
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extern uint16 _custom_sprites_base;
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const byte _track_sloped_sprites[14] = {
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14, 15, 22, 13,
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0, 21, 17, 12,
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23, 0, 18, 20,
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19, 16
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};
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void ShowTrainDepotWindow(TileIndex tile);
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/* 4
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* ---------
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* |\ /|
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* | \ 1/ |
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* | \ / |
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* | \ / |
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* 16| \ |32
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* | / \2 |
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* | / \ |
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* | / \ |
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* |/ \|
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* ---------
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* 8
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*/
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// Constants for lower part of Map2 byte.
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enum RailMap2Lower4 {
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RAIL_MAP2LO_GROUND_MASK = 0xF,
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RAIL_GROUND_BROWN = 0,
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RAIL_GROUND_GREEN = 1,
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RAIL_GROUND_FENCE_NW = 2,
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RAIL_GROUND_FENCE_SE = 3,
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RAIL_GROUND_FENCE_SENW = 4,
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RAIL_GROUND_FENCE_NE = 5,
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RAIL_GROUND_FENCE_SW = 6,
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RAIL_GROUND_FENCE_NESW = 7,
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RAIL_GROUND_FENCE_VERT1 = 8,
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RAIL_GROUND_FENCE_VERT2 = 9,
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RAIL_GROUND_FENCE_HORIZ1 = 10,
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RAIL_GROUND_FENCE_HORIZ2 = 11,
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RAIL_GROUND_ICE_DESERT = 12,
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};
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/* MAP2 byte: abcd???? => Signal On? Same coding as map3lo
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* MAP3LO byte: abcd???? => Signal Exists?
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* a and b are for diagonals, upper and left,
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* one for each direction. (ie a == NE->SW, b ==
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* SW->NE, or v.v., I don't know. b and c are
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* similar for lower and right.
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* MAP2 byte: ????abcd => Type of ground.
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* MAP3LO byte: ????abcd => Type of rail.
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* MAP5: 00abcdef => rail
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* 01abcdef => rail w/ signals
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* 10uuuuuu => unused
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* 11uuuudd => rail depot
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*/
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static bool CheckTrackCombination(TileIndex tile, TrackBits to_build, uint flags)
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{
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RailTileType type = GetRailTileType(tile);
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TrackBits current; /* The current track layout */
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TrackBits future; /* The track layout we want to build */
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_error_message = STR_1001_IMPOSSIBLE_TRACK_COMBINATION;
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if (type != RAIL_TYPE_NORMAL && type != RAIL_TYPE_SIGNALS)
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return false; /* Cannot build anything on depots and checkpoints */
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/* So, we have a tile with tracks on it (and possibly signals). Let's see
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* what tracks first */
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current = GetTrackBits(tile);
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future = current | to_build;
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/* Are we really building something new? */
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if (current == future) {
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/* Nothing new is being built */
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_error_message = STR_1007_ALREADY_BUILT;
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return false;
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}
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/* Let's see if we may build this */
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if ((flags & DC_NO_RAIL_OVERLAP) || type == RAIL_TYPE_SIGNALS) {
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/* If we are not allowed to overlap (flag is on for ai players or we have
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* signals on the tile), check that */
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return future == TRACK_BIT_HORZ || future == TRACK_BIT_VERT;
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} else {
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/* Normally, we may overlap and any combination is valid */
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return true;
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}
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}
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const TrackBits _valid_tileh_slopes[2][15] = {
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// set of normal ones
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{
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TRACK_BIT_ALL,
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TRACK_BIT_RIGHT,
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TRACK_BIT_UPPER,
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TRACK_BIT_X,
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TRACK_BIT_LEFT,
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0,
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TRACK_BIT_Y,
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TRACK_BIT_LOWER,
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TRACK_BIT_LOWER,
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TRACK_BIT_Y,
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0,
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TRACK_BIT_LEFT,
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TRACK_BIT_X,
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TRACK_BIT_UPPER,
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TRACK_BIT_RIGHT,
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},
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// allowed rail for an evenly raised platform
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{
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0,
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TRACK_BIT_LEFT,
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TRACK_BIT_LOWER,
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TRACK_BIT_Y | TRACK_BIT_LOWER | TRACK_BIT_LEFT,
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TRACK_BIT_RIGHT,
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TRACK_BIT_ALL,
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TRACK_BIT_X | TRACK_BIT_LOWER | TRACK_BIT_RIGHT,
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TRACK_BIT_ALL,
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TRACK_BIT_UPPER,
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TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_LEFT,
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TRACK_BIT_ALL,
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TRACK_BIT_ALL,
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TRACK_BIT_Y | TRACK_BIT_UPPER | TRACK_BIT_RIGHT,
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TRACK_BIT_ALL,
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TRACK_BIT_ALL
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}
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};
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uint GetRailFoundation(uint tileh, TrackBits bits)
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{
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int i;
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if ((~_valid_tileh_slopes[0][tileh] & bits) == 0)
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return 0;
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if ((~_valid_tileh_slopes[1][tileh] & bits) == 0)
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return tileh;
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if ((
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(i = 0, tileh == 1) ||
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(i += 2, tileh == 2) ||
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(i += 2, tileh == 4) ||
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(i += 2, tileh == 8)
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) && (
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bits == TRACK_BIT_X ||
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(i++, bits == TRACK_BIT_Y)
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)) {
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return i + 15;
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} else {
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return 0;
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}
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}
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static uint32 CheckRailSlope(uint tileh, TrackBits rail_bits, TrackBits existing, TileIndex tile)
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{
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// never allow building on top of steep tiles
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if (!IsSteepTileh(tileh)) {
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rail_bits |= existing;
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// don't allow building on the lower side of a coast
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if (IsTileType(tile, MP_WATER) &&
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~_valid_tileh_slopes[1][tileh] & rail_bits) {
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return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
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}
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// no special foundation
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if ((~_valid_tileh_slopes[0][tileh] & rail_bits) == 0)
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return 0;
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if ((~_valid_tileh_slopes[1][tileh] & rail_bits) == 0 || ( // whole tile is leveled up
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(rail_bits == TRACK_BIT_X || rail_bits == TRACK_BIT_Y) &&
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(tileh == 1 || tileh == 2 || tileh == 4 || tileh == 8)
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)) { // partly up
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if (existing != 0) {
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return 0;
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} else if (!_patches.build_on_slopes || _is_old_ai_player) {
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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} else {
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return _price.terraform;
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}
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}
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}
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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}
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/* Validate functions for rail building */
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static inline bool ValParamTrackOrientation(Track track) {return IsValidTrack(track);}
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/** Build a single piece of rail
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* @param x,y coordinates on where to build
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* @param p1 railtype of being built piece (normal, mono, maglev)
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* @param p2 rail track to build
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*/
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int32 CmdBuildSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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TileIndex tile;
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uint tileh;
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Track track = (Track)p2;
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TrackBits trackbit;
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int32 cost = 0;
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int32 ret;
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if (!ValParamRailtype(p1) || !ValParamTrackOrientation(track)) return CMD_ERROR;
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tile = TileVirtXY(x, y);
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tileh = GetTileSlope(tile, NULL);
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trackbit = TrackToTrackBits(track);
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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switch (GetTileType(tile)) {
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case MP_TUNNELBRIDGE:
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if (!IsBridge(tile) ||
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!IsBridgeMiddle(tile) ||
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(GetBridgeAxis(tile) == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X) != trackbit) {
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// Get detailed error message
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return DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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}
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if (IsClearUnderBridge(tile)) {
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ret = CheckRailSlope(tileh, trackbit, 0, tile);
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if (CmdFailed(ret)) return ret;
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cost += ret;
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if (flags & DC_EXEC) SetRailUnderBridge(tile, _current_player, p1);
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} else if (IsTransportUnderBridge(tile) &&
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GetTransportTypeUnderBridge(tile) == TRANSPORT_RAIL) {
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return_cmd_error(STR_1007_ALREADY_BUILT);
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} else {
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// Get detailed error message
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return DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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}
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break;
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case MP_RAILWAY:
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if (!CheckTrackCombination(tile, trackbit, flags) ||
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!EnsureNoVehicle(tile)) {
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return CMD_ERROR;
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}
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if (GetRailTileType(tile) == RAIL_TYPE_DEPOT_WAYPOINT ||
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!IsTileOwner(tile, _current_player) ||
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GetRailType(tile) != p1) {
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// Get detailed error message
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return DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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}
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ret = CheckRailSlope(tileh, trackbit, GetTrackBits(tile), tile);
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if (CmdFailed(ret)) return ret;
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cost += ret;
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if (flags & DC_EXEC) {
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_m[tile].m2 &= ~RAIL_MAP2LO_GROUND_MASK; // Bare land
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_m[tile].m5 |= trackbit;
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}
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break;
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case MP_STREET:
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#define M(x) (1 << (x))
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/* Level crossings may only be built on these slopes */
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if (!HASBIT(M(14) | M(13) | M(11) | M(10) | M(7) | M(5) | M(0), tileh)) {
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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}
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#undef M
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if (!EnsureNoVehicle(tile)) return CMD_ERROR;
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if (GetRoadType(tile) == ROAD_NORMAL && (
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(track == TRACK_X && GetRoadBits(tile) == ROAD_Y) ||
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(track == TRACK_Y && GetRoadBits(tile) == ROAD_X)
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)) {
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if (flags & DC_EXEC) {
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MakeRoadCrossing(tile, GetTileOwner(tile), _current_player, (track == TRACK_X ? AXIS_Y : AXIS_X), p1, GetTownIndex(tile));
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}
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break;
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}
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if (IsLevelCrossing(tile) && GetCrossingRailBits(tile) == trackbit) {
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return_cmd_error(STR_1007_ALREADY_BUILT);
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}
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/* FALLTHROUGH */
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default:
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ret = CheckRailSlope(tileh, trackbit, 0, tile);
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if (CmdFailed(ret)) return ret;
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cost += ret;
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ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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if (CmdFailed(ret)) return ret;
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cost += ret;
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if (flags & DC_EXEC) MakeRailNormal(tile, _current_player, trackbit, p1);
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break;
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}
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if (flags & DC_EXEC) {
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MarkTileDirtyByTile(tile);
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SetSignalsOnBothDir(tile, track);
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}
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return cost + _price.build_rail;
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}
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/** Remove a single piece of track
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* @param x,y coordinates for removal of track
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* @param p1 unused
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* @param p2 rail orientation
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*/
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int32 CmdRemoveSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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Track track = (Track)p2;
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TrackBits trackbit;
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TileIndex tile;
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int32 cost = _price.remove_rail;
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bool crossing = false;
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if (!ValParamTrackOrientation(p2)) return CMD_ERROR;
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trackbit = TrackToTrackBits(track);
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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tile = TileVirtXY(x, y);
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switch (GetTileType(tile)) {
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case MP_TUNNELBRIDGE:
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if (!IsBridge(tile) ||
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!IsBridgeMiddle(tile) ||
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!IsTransportUnderBridge(tile) ||
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GetTransportTypeUnderBridge(tile) != TRANSPORT_RAIL ||
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GetRailBitsUnderBridge(tile) != trackbit ||
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(_current_player != OWNER_WATER && !CheckTileOwnership(tile)) ||
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!EnsureNoVehicleZ(tile, TilePixelHeight(tile))) {
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return CMD_ERROR;
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}
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if (flags & DC_EXEC) SetClearUnderBridge(tile);
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break;
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case MP_STREET: {
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if (!IsLevelCrossing(tile) ||
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GetCrossingRailBits(tile) != trackbit ||
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(_current_player != OWNER_WATER && !CheckTileOwnership(tile)) ||
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!EnsureNoVehicle(tile)) {
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return CMD_ERROR;
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}
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if (flags & DC_EXEC) {
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MakeRoadNormal(tile, GetCrossingRoadOwner(tile), GetCrossingRoadBits(tile), GetTownIndex(tile));
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}
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break;
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}
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case MP_RAILWAY: {
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TrackBits present;
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if (!IsPlainRailTile(tile) ||
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(_current_player != OWNER_WATER && !CheckTileOwnership(tile)) ||
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!EnsureNoVehicle(tile)) {
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return CMD_ERROR;
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}
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present = GetTrackBits(tile);
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if ((present & trackbit) == 0) return CMD_ERROR;
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if (present == (TRACK_BIT_X | TRACK_BIT_Y)) crossing = true;
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/* Charge extra to remove signals on the track, if they are there */
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if (HasSignalOnTrack(tile, track))
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cost += DoCommand(x, y, track, 0, flags, CMD_REMOVE_SIGNALS);
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if (flags & DC_EXEC) {
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present ^= trackbit;
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if (present == 0) {
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DoClearSquare(tile);
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} else {
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SetTrackBits(tile, present);
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}
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}
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break;
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}
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default: return CMD_ERROR;
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}
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if (flags & DC_EXEC) {
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MarkTileDirtyByTile(tile);
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if (crossing) {
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/* crossing is set when only TRACK_BIT_X and TRACK_BIT_Y are set. As we
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* are removing one of these pieces, we'll need to update signals for
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* both directions explicitly, as after the track is removed it won't
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* 'connect' with the other piece. */
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SetSignalsOnBothDir(tile, TRACK_X);
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SetSignalsOnBothDir(tile, TRACK_Y);
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} else {
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SetSignalsOnBothDir(tile, track);
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}
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}
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return cost;
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}
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static const struct {
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int8 xinc[16];
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int8 yinc[16];
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} _railbit = {{
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// 0 1 2 3 4 5
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-16, 0,-16, 0, 16, 0, 0, 0,
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16, 0, 0, 16, 0,-16, 0, 0,
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},{
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0, 16, 0, 16, 0, 16, 0, 0,
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0,-16,-16, 0,-16, 0, 0, 0,
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}};
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static int32 ValidateAutoDrag(Trackdir *trackdir, int x, int y, int ex, int ey)
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{
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int dx, dy, trdx, trdy;
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if (!ValParamTrackOrientation(*trackdir)) return CMD_ERROR;
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// calculate delta x,y from start to end tile
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dx = ex - x;
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dy = ey - y;
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// calculate delta x,y for the first direction
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trdx = _railbit.xinc[*trackdir];
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trdy = _railbit.yinc[*trackdir];
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if (!IsDiagonalTrackdir(*trackdir)) {
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trdx += _railbit.xinc[*trackdir ^ 1];
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trdy += _railbit.yinc[*trackdir ^ 1];
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}
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// validate the direction
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while (
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(trdx <= 0 && dx > 0) ||
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(trdx >= 0 && dx < 0) ||
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(trdy <= 0 && dy > 0) ||
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(trdy >= 0 && dy < 0)
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) {
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if (!HASBIT(*trackdir, 3)) { // first direction is invalid, try the other
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SETBIT(*trackdir, 3); // reverse the direction
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trdx = -trdx;
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trdy = -trdy;
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} else // other direction is invalid too, invalid drag
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return CMD_ERROR;
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}
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|
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// (for diagonal tracks, this is already made sure of by above test), but:
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// for non-diagonal tracks, check if the start and end tile are on 1 line
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if (!IsDiagonalTrackdir(*trackdir)) {
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trdx = _railbit.xinc[*trackdir];
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trdy = _railbit.yinc[*trackdir];
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if (abs(dx) != abs(dy) && abs(dx) + abs(trdy) != abs(dy) + abs(trdx))
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return CMD_ERROR;
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}
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return 0;
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}
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|
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/** Build a stretch of railroad tracks.
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* @param x,y start tile of drag
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* @param p1 end tile of drag
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* @param p2 various bitstuffed elements
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* - p2 = (bit 0-3) - railroad type normal/maglev (0 = normal, 1 = mono, 2 = maglev)
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* - p2 = (bit 4-6) - track-orientation, valid values: 0-5 (Track enum)
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* - p2 = (bit 7) - 0 = build, 1 = remove tracks
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*/
|
|
static int32 CmdRailTrackHelper(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int ex, ey;
|
|
int32 ret, total_cost = 0;
|
|
Track track = (Track)GB(p2, 4, 3);
|
|
Trackdir trackdir;
|
|
byte mode = HASBIT(p2, 7);
|
|
RailType railtype = (RailType)GB(p2, 0, 4);
|
|
|
|
if (!ValParamRailtype(railtype) || !ValParamTrackOrientation(track)) return CMD_ERROR;
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
trackdir = TrackToTrackdir(track);
|
|
|
|
/* unpack end point */
|
|
ex = TileX(p1) * TILE_SIZE;
|
|
ey = TileY(p1) * TILE_SIZE;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (CmdFailed(ValidateAutoDrag(&trackdir, x, y, ex, ey))) return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) SndPlayTileFx(SND_20_SPLAT_2, TileVirtXY(x, y));
|
|
|
|
for (;;) {
|
|
ret = DoCommand(x, y, railtype, TrackdirToTrack(trackdir), flags, (mode == 0) ? CMD_BUILD_SINGLE_RAIL : CMD_REMOVE_SINGLE_RAIL);
|
|
|
|
if (CmdFailed(ret)) {
|
|
if ((_error_message != STR_1007_ALREADY_BUILT) && (mode == 0))
|
|
break;
|
|
} else
|
|
total_cost += ret;
|
|
|
|
if (x == ex && y == ey)
|
|
break;
|
|
|
|
x += _railbit.xinc[trackdir];
|
|
y += _railbit.yinc[trackdir];
|
|
|
|
// toggle railbit for the non-diagonal tracks
|
|
if (!IsDiagonalTrackdir(trackdir)) trackdir ^= 1;
|
|
}
|
|
|
|
return (total_cost == 0) ? CMD_ERROR : total_cost;
|
|
}
|
|
|
|
/** Build rail on a stretch of track.
|
|
* Stub for the unified rail builder/remover
|
|
* @see CmdRailTrackHelper
|
|
*/
|
|
int32 CmdBuildRailroadTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
return CmdRailTrackHelper(x, y, flags, p1, CLRBIT(p2, 7));
|
|
}
|
|
|
|
/** Build rail on a stretch of track.
|
|
* Stub for the unified rail builder/remover
|
|
* @see CmdRailTrackHelper
|
|
*/
|
|
int32 CmdRemoveRailroadTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
return CmdRailTrackHelper(x, y, flags, p1, SETBIT(p2, 7));
|
|
}
|
|
|
|
/** Build a train depot
|
|
* @param x,y position of the train depot
|
|
* @param p1 rail type
|
|
* @param p2 entrance direction (DiagDirection)
|
|
*
|
|
* @todo When checking for the tile slope,
|
|
* distingush between "Flat land required" and "land sloped in wrong direction"
|
|
*/
|
|
int32 CmdBuildTrainDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
Depot *d;
|
|
TileIndex tile = TileVirtXY(x, y);
|
|
int32 cost, ret;
|
|
uint tileh;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
|
|
/* check railtype and valid direction for depot (0 through 3), 4 in total */
|
|
if (!ValParamRailtype(p1) || p2 > 3) return CMD_ERROR;
|
|
|
|
tileh = GetTileSlope(tile, NULL);
|
|
|
|
/* Prohibit construction if
|
|
The tile is non-flat AND
|
|
1) The AI is "old-school"
|
|
2) build-on-slopes is disabled
|
|
3) the tile is steep i.e. spans two height levels
|
|
4) the exit points in the wrong direction
|
|
|
|
*/
|
|
|
|
if (tileh != 0 && (
|
|
_is_old_ai_player ||
|
|
!_patches.build_on_slopes ||
|
|
IsSteepTileh(tileh) ||
|
|
!CanBuildDepotByTileh(p2, tileh)
|
|
)) {
|
|
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
|
|
}
|
|
|
|
ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
|
|
if (CmdFailed(ret)) return CMD_ERROR;
|
|
cost = ret;
|
|
|
|
d = AllocateDepot();
|
|
if (d == NULL) return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
if (IsLocalPlayer()) _last_built_train_depot_tile = tile;
|
|
|
|
MakeRailDepot(tile, _current_player, p2, p1);
|
|
MarkTileDirtyByTile(tile);
|
|
|
|
d->xy = tile;
|
|
d->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
|
|
|
|
UpdateSignalsOnSegment(tile, p2);
|
|
}
|
|
|
|
return cost + _price.build_train_depot;
|
|
}
|
|
|
|
/** Build signals, alternate between double/single, signal/semaphore,
|
|
* pre/exit/combo-signals, and what-else not
|
|
* @param x,y coordinates where signals is being built
|
|
* @param p1 various bitstuffed elements
|
|
* - p1 = (bit 0-2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p1 = (bit 3) - choose semaphores/signals or cycle normal/pre/exit/combo depending on context
|
|
* @param p2 used for CmdBuildManySignals() to copy direction of first signal
|
|
* TODO: p2 should be replaced by two bits for "along" and "against" the track.
|
|
*/
|
|
int32 CmdBuildSingleSignal(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
TileIndex tile = TileVirtXY(x, y);
|
|
SignalVariant sigvar;
|
|
bool pre_signal;
|
|
Track track = (Track)(p1 & 0x7);
|
|
int32 cost;
|
|
|
|
// Same bit, used in different contexts
|
|
sigvar = HASBIT(p1, 3) ? SIG_SEMAPHORE : SIG_ELECTRIC;
|
|
pre_signal = HASBIT(p1, 3);
|
|
|
|
if (!ValParamTrackOrientation(track) || !IsTileType(tile, MP_RAILWAY) || !EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
/* Protect against invalid signal copying */
|
|
if (p2 != 0 && (p2 & SignalOnTrack(track)) == 0) return CMD_ERROR;
|
|
|
|
/* You can only build signals on plain rail tiles, and the selected track must exist */
|
|
if (!IsPlainRailTile(tile) || !HasTrack(tile, track)) return CMD_ERROR;
|
|
|
|
if (!CheckTileOwnership(tile)) return CMD_ERROR;
|
|
|
|
_error_message = STR_1005_NO_SUITABLE_RAILROAD_TRACK;
|
|
|
|
{
|
|
/* See if this is a valid track combination for signals, (ie, no overlap) */
|
|
TrackBits trackbits = GetTrackBits(tile);
|
|
if (KILL_FIRST_BIT(trackbits) != 0 && /* More than one track present */
|
|
trackbits != TRACK_BIT_HORZ &&
|
|
trackbits != TRACK_BIT_VERT
|
|
)
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (!HasSignalOnTrack(tile, track)) {
|
|
// build new signals
|
|
cost = _price.build_signals;
|
|
} else {
|
|
if (p2 != 0 && sigvar != GetSignalVariant(tile)) {
|
|
// convert signals <-> semaphores
|
|
cost = _price.build_signals + _price.remove_signals;
|
|
} else {
|
|
// it is free to change orientation/pre-exit-combo signals
|
|
cost = 0;
|
|
}
|
|
}
|
|
|
|
if (flags & DC_EXEC) {
|
|
if (GetRailTileType(tile) != RAIL_TYPE_SIGNALS) {
|
|
// there are no signals at all on this tile yet
|
|
_m[tile].m5 |= RAIL_TYPE_SIGNALS; // change into signals
|
|
_m[tile].m2 |= 0xF0; // all signals are on
|
|
_m[tile].m3 &= ~0xF0; // no signals built by default
|
|
_m[tile].m4 = 0;
|
|
SetSignalVariant(tile, sigvar);
|
|
}
|
|
|
|
if (p2 == 0) {
|
|
if (!HasSignalOnTrack(tile, track)) {
|
|
// build new signals
|
|
_m[tile].m3 |= SignalOnTrack(track);
|
|
} else {
|
|
if (pre_signal) {
|
|
// cycle between normal -> pre -> exit -> combo -> ...
|
|
SignalType type = GetSignalType(tile);
|
|
|
|
SetSignalType(tile, type == SIGTYPE_COMBO ? SIGTYPE_NORMAL : type + 1);
|
|
} else {
|
|
// cycle between two-way -> one-way -> one-way -> ...
|
|
/* TODO: Rewrite switch into something more general */
|
|
switch (track) {
|
|
case TRACK_LOWER:
|
|
case TRACK_RIGHT: {
|
|
byte signal = (_m[tile].m3 - 0x10) & 0x30;
|
|
if (signal == 0) signal = 0x30;
|
|
_m[tile].m3 &= ~0x30;
|
|
_m[tile].m3 |= signal;
|
|
break;
|
|
}
|
|
|
|
default: {
|
|
byte signal = (_m[tile].m3 - 0x40) & 0xC0;
|
|
if (signal == 0) signal = 0xC0;
|
|
_m[tile].m3 &= ~0xC0;
|
|
_m[tile].m3 |= signal;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
/* If CmdBuildManySignals is called with copying signals, just copy the
|
|
* direction of the first signal given as parameter by CmdBuildManySignals */
|
|
_m[tile].m3 &= ~SignalOnTrack(track);
|
|
_m[tile].m3 |= p2 & SignalOnTrack(track);
|
|
SetSignalVariant(tile, sigvar);
|
|
}
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
SetSignalsOnBothDir(tile, track);
|
|
}
|
|
|
|
return cost;
|
|
}
|
|
|
|
/** Build many signals by dragging; AutoSignals
|
|
* @param x,y start tile of drag
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0) - 0 = build, 1 = remove signals
|
|
* - p2 = (bit 3) - 0 = signals, 1 = semaphores
|
|
* - p2 = (bit 4- 6) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 24-31) - user defined signals_density
|
|
*/
|
|
static int32 CmdSignalTrackHelper(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int ex, ey;
|
|
int32 ret, total_cost, signal_ctr;
|
|
byte signals;
|
|
TileIndex tile = TileVirtXY(x, y);
|
|
bool error = true;
|
|
|
|
int mode = p2 & 0x1;
|
|
Track track = GB(p2, 4, 3);
|
|
Trackdir trackdir = TrackToTrackdir(track);
|
|
byte semaphores = (HASBIT(p2, 3)) ? 8 : 0;
|
|
byte signal_density = (p2 >> 24);
|
|
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
if (signal_density == 0 || signal_density > 20) return CMD_ERROR;
|
|
|
|
if (!IsTileType(tile, MP_RAILWAY)) return CMD_ERROR;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
/* for vertical/horizontal tracks, double the given signals density
|
|
* since the original amount will be too dense (shorter tracks) */
|
|
if (!IsDiagonalTrack(track))
|
|
signal_density *= 2;
|
|
|
|
// unpack end tile
|
|
ex = TileX(p1) * TILE_SIZE;
|
|
ey = TileY(p1) * TILE_SIZE;
|
|
|
|
if (CmdFailed(ValidateAutoDrag(&trackdir, x, y, ex, ey))) return CMD_ERROR;
|
|
|
|
track = TrackdirToTrack(trackdir); /* trackdir might have changed, keep track in sync */
|
|
|
|
// copy the signal-style of the first rail-piece if existing
|
|
if (GetRailTileType(tile) == RAIL_TYPE_SIGNALS && GetTrackBits(tile) != 0) { /* XXX: GetTrackBits check useless? */
|
|
signals = _m[tile].m3 & SignalOnTrack(track);
|
|
if (signals == 0) signals = SignalOnTrack(track); /* Can this actually occur? */
|
|
|
|
// copy signal/semaphores style (independent of CTRL)
|
|
semaphores = (GetSignalVariant(tile) == SIG_ELECTRIC ? 0 : 8);
|
|
} else // no signals exist, drag a two-way signal stretch
|
|
signals = SignalOnTrack(track);
|
|
|
|
/* signal_ctr - amount of tiles already processed
|
|
* signals_density - patch setting to put signal on every Nth tile (double space on |, -- tracks)
|
|
**********
|
|
* trackdir - trackdir to build with autorail
|
|
* semaphores - semaphores or signals
|
|
* signals - is there a signal/semaphore on the first tile, copy its style (two-way/single-way)
|
|
and convert all others to semaphore/signal
|
|
* mode - 1 remove signals, 0 build signals */
|
|
signal_ctr = total_cost = 0;
|
|
for (;;) {
|
|
// only build/remove signals with the specified density
|
|
if ((signal_ctr % signal_density) == 0 ) {
|
|
ret = DoCommand(x, y, TrackdirToTrack(trackdir) | semaphores, signals, flags, (mode == 1) ? CMD_REMOVE_SIGNALS : CMD_BUILD_SIGNALS);
|
|
|
|
/* Abort placement for any other error than NOT_SUITABLE_TRACK
|
|
* This includes vehicles on track, competitor's tracks, etc. */
|
|
if (CmdFailed(ret)) {
|
|
if (_error_message != STR_1005_NO_SUITABLE_RAILROAD_TRACK && mode != 1) return CMD_ERROR;
|
|
} else {
|
|
error = false;
|
|
total_cost += ret;
|
|
}
|
|
}
|
|
|
|
if (ex == x && ey == y) break; // reached end of drag
|
|
|
|
x += _railbit.xinc[trackdir];
|
|
y += _railbit.yinc[trackdir];
|
|
signal_ctr++;
|
|
|
|
// toggle railbit for the non-diagonal tracks (|, -- tracks)
|
|
if (!IsDiagonalTrackdir(trackdir)) trackdir ^= 1;
|
|
}
|
|
|
|
return error ? CMD_ERROR : total_cost;
|
|
}
|
|
|
|
/** Build signals on a stretch of track.
|
|
* Stub for the unified signal builder/remover
|
|
* @see CmdSignalTrackHelper
|
|
*/
|
|
int32 CmdBuildSignalTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
return CmdSignalTrackHelper(x, y, flags, p1, p2);
|
|
}
|
|
|
|
/** Remove signals
|
|
* @param x,y coordinates where signal is being deleted from
|
|
* @param p1 track to remove signal from (Track enum)
|
|
*/
|
|
int32 CmdRemoveSingleSignal(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
TileIndex tile = TileVirtXY(x, y);
|
|
Track track = (Track)(p1 & 0x7);
|
|
|
|
if (!ValParamTrackOrientation(track) || !IsTileType(tile, MP_RAILWAY) || !EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (!HasSignalOnTrack(tile, track)) // no signals on track?
|
|
return CMD_ERROR;
|
|
|
|
/* Only water can remove signals from anyone */
|
|
if (_current_player != OWNER_WATER && !CheckTileOwnership(tile)) return CMD_ERROR;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
/* Do it? */
|
|
if (flags & DC_EXEC) {
|
|
_m[tile].m3 &= ~SignalOnTrack(track);
|
|
|
|
/* removed last signal from tile? */
|
|
if (GB(_m[tile].m3, 4, 4) == 0) {
|
|
SB(_m[tile].m2, 4, 4, 0);
|
|
SB(_m[tile].m5, 6, 2, RAIL_TYPE_NORMAL >> 6); // XXX >> because the constant is meant for direct application, not use with SB
|
|
SetSignalVariant(tile, SIG_ELECTRIC); // remove any possible semaphores
|
|
}
|
|
|
|
SetSignalsOnBothDir(tile, track);
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
|
|
return _price.remove_signals;
|
|
}
|
|
|
|
/** Remove signals on a stretch of track.
|
|
* Stub for the unified signal builder/remover
|
|
* @see CmdSignalTrackHelper
|
|
*/
|
|
int32 CmdRemoveSignalTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
return CmdSignalTrackHelper(x, y, flags, p1, SETBIT(p2, 0));
|
|
}
|
|
|
|
typedef int32 DoConvertRailProc(TileIndex tile, RailType totype, bool exec);
|
|
|
|
static int32 DoConvertRail(TileIndex tile, RailType totype, bool exec)
|
|
{
|
|
if (!CheckTileOwnership(tile)) return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicle(tile) && (!IsCompatibleRail(GetRailType(tile), totype) || IsPlainRailTile(tile))) return CMD_ERROR;
|
|
|
|
// tile is already of requested type?
|
|
if (GetRailType(tile) == totype) return CMD_ERROR;
|
|
|
|
// change type.
|
|
if (exec) {
|
|
SetRailType(tile, totype);
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
|
|
return _price.build_rail / 2;
|
|
}
|
|
|
|
extern int32 DoConvertStationRail(TileIndex tile, uint totype, bool exec);
|
|
extern int32 DoConvertStreetRail(TileIndex tile, uint totype, bool exec);
|
|
extern int32 DoConvertTunnelBridgeRail(TileIndex tile, uint totype, bool exec);
|
|
|
|
/** Convert one rail type to the other. You can convert normal rail to
|
|
* monorail/maglev easily or vice-versa.
|
|
* @param ex,ey end tile of rail conversion drag
|
|
* @param p1 start tile of drag
|
|
* @param p2 new railtype to convert to
|
|
*/
|
|
int32 CmdConvertRail(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int32 ret, cost, money;
|
|
int sx, sy, x, y;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (!ValParamRailtype(p2)) return CMD_ERROR;
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
|
|
// make sure sx,sy are smaller than ex,ey
|
|
sx = TileX(p1) * TILE_SIZE;
|
|
sy = TileY(p1) * TILE_SIZE;
|
|
if (ex < sx) intswap(ex, sx);
|
|
if (ey < sy) intswap(ey, sy);
|
|
|
|
money = GetAvailableMoneyForCommand();
|
|
cost = 0;
|
|
|
|
for (x = sx; x <= ex; x += TILE_SIZE) {
|
|
for (y = sy; y <= ey; y += TILE_SIZE) {
|
|
TileIndex tile = TileVirtXY(x, y);
|
|
DoConvertRailProc* proc;
|
|
|
|
switch (GetTileType(tile)) {
|
|
case MP_RAILWAY: proc = DoConvertRail; break;
|
|
case MP_STATION: proc = DoConvertStationRail; break;
|
|
case MP_STREET: proc = DoConvertStreetRail; break;
|
|
case MP_TUNNELBRIDGE: proc = DoConvertTunnelBridgeRail; break;
|
|
default: continue;
|
|
}
|
|
|
|
ret = proc(tile, p2, false);
|
|
if (CmdFailed(ret)) continue;
|
|
cost += ret;
|
|
|
|
if (flags & DC_EXEC) {
|
|
money -= ret;
|
|
if (money < 0) {
|
|
_additional_cash_required = ret;
|
|
return cost - ret;
|
|
}
|
|
proc(tile, p2, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (cost == 0) ? CMD_ERROR : cost;
|
|
}
|
|
|
|
static int32 RemoveTrainDepot(TileIndex tile, uint32 flags)
|
|
{
|
|
if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER)
|
|
return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
DiagDirection dir = GetRailDepotDirection(tile);
|
|
|
|
DoDeleteDepot(tile);
|
|
UpdateSignalsOnSegment(tile, dir);
|
|
}
|
|
|
|
return _price.remove_train_depot;
|
|
}
|
|
|
|
static int32 ClearTile_Track(TileIndex tile, byte flags)
|
|
{
|
|
int32 cost;
|
|
int32 ret;
|
|
byte m5;
|
|
|
|
m5 = _m[tile].m5;
|
|
|
|
if (flags & DC_AUTO) {
|
|
if (GetRailTileType(tile) == RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
|
|
}
|
|
|
|
if (!IsTileOwner(tile, _current_player))
|
|
return_cmd_error(STR_1024_AREA_IS_OWNED_BY_ANOTHER);
|
|
|
|
return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
|
|
}
|
|
|
|
cost = 0;
|
|
|
|
switch (GetRailTileType(tile)) {
|
|
/* XXX: Why the fuck do we remove these thow signals first? */
|
|
case RAIL_TYPE_SIGNALS:
|
|
if (HasSignalOnTrack(tile, TRACK_X)) {
|
|
ret = DoCommandByTile(tile, TRACK_X, 0, flags, CMD_REMOVE_SIGNALS);
|
|
if (CmdFailed(ret)) return CMD_ERROR;
|
|
cost += ret;
|
|
}
|
|
if (HasSignalOnTrack(tile, TRACK_LOWER)) {
|
|
ret = DoCommandByTile(tile, TRACK_LOWER, 0, flags, CMD_REMOVE_SIGNALS);
|
|
if (CmdFailed(ret)) return CMD_ERROR;
|
|
cost += ret;
|
|
}
|
|
|
|
m5 &= TRACK_BIT_MASK;
|
|
if (!(flags & DC_EXEC)) {
|
|
for (; m5 != 0; m5 >>= 1) if (m5 & 1) cost += _price.remove_rail;
|
|
return cost;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case RAIL_TYPE_NORMAL: {
|
|
uint i;
|
|
|
|
for (i = 0; m5 != 0; i++, m5 >>= 1) {
|
|
if (m5 & 1) {
|
|
ret = DoCommandByTile(tile, 0, i, flags, CMD_REMOVE_SINGLE_RAIL);
|
|
if (CmdFailed(ret)) return CMD_ERROR;
|
|
cost += ret;
|
|
}
|
|
}
|
|
return cost;
|
|
}
|
|
|
|
case RAIL_TYPE_DEPOT_WAYPOINT:
|
|
if (GetRailTileSubtype(tile) == RAIL_SUBTYPE_DEPOT) {
|
|
return RemoveTrainDepot(tile, flags);
|
|
} else {
|
|
return RemoveTrainWaypoint(tile, flags, false);
|
|
}
|
|
|
|
default:
|
|
return CMD_ERROR;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
#include "table/track_land.h"
|
|
|
|
// used for presignals
|
|
static const SpriteID _signal_base_sprites[16] = {
|
|
0x4FB,
|
|
0x1323,
|
|
0x1333,
|
|
0x1343,
|
|
|
|
// semaphores
|
|
0x1353,
|
|
0x1363,
|
|
0x1373,
|
|
0x1383,
|
|
|
|
// mirrored versions
|
|
0x4FB,
|
|
0x1323,
|
|
0x1333,
|
|
0x1343,
|
|
|
|
// semaphores
|
|
0x1446,
|
|
0x1456,
|
|
0x1466,
|
|
0x1476,
|
|
};
|
|
|
|
// used to determine the side of the road for the signal
|
|
static const byte _signal_position[24] = {
|
|
/* original: left side position */
|
|
0x58, 0x1E, 0xE1, 0xB9, 0x01, 0xA3, 0x4B, 0xEE, 0x3B, 0xD4, 0x43, 0xBD,
|
|
/* patch: ride side position */
|
|
0x1E, 0xAC, 0x64, 0xE1, 0x4A, 0x10, 0xEE, 0xC5, 0xDB, 0x34, 0x4D, 0xB3
|
|
};
|
|
|
|
static void DrawSignalHelper(const TileInfo *ti, byte condition, uint32 image_and_pos)
|
|
{
|
|
bool otherside = _opt.road_side & _patches.signal_side;
|
|
|
|
uint v = _signal_position[(image_and_pos & 0xF) + (otherside ? 12 : 0)];
|
|
uint x = ti->x | (v&0xF);
|
|
uint y = ti->y | (v>>4);
|
|
uint sprite = _signal_base_sprites[(_m[ti->tile].m4 & 0x7) + (otherside ? 8 : 0)] + (image_and_pos>>4) + ((condition != 0) ? 1 : 0);
|
|
AddSortableSpriteToDraw(sprite, x, y, 1, 1, 10, GetSlopeZ(x,y));
|
|
}
|
|
|
|
static uint32 _drawtile_track_palette;
|
|
|
|
|
|
static void DrawTrackFence_NW(const TileInfo *ti)
|
|
{
|
|
uint32 image = 0x515;
|
|
if (ti->tileh != 0) image = (ti->tileh & 2) ? 0x519 : 0x51B;
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x, ti->y + 1, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SE(const TileInfo *ti)
|
|
{
|
|
uint32 image = 0x515;
|
|
if (ti->tileh != 0) image = (ti->tileh & 2) ? 0x519 : 0x51B;
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x, ti->y + 15, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NW_SE(const TileInfo *ti)
|
|
{
|
|
DrawTrackFence_NW(ti);
|
|
DrawTrackFence_SE(ti);
|
|
}
|
|
|
|
static void DrawTrackFence_NE(const TileInfo *ti)
|
|
{
|
|
uint32 image = 0x516;
|
|
if (ti->tileh != 0) image = (ti->tileh & 2) ? 0x51A : 0x51C;
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x + 1, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SW(const TileInfo *ti)
|
|
{
|
|
uint32 image = 0x516;
|
|
if (ti->tileh != 0) image = (ti->tileh & 2) ? 0x51A : 0x51C;
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x + 15, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NE_SW(const TileInfo *ti)
|
|
{
|
|
DrawTrackFence_NE(ti);
|
|
DrawTrackFence_SW(ti);
|
|
}
|
|
|
|
static void DrawTrackFence_NS_1(const TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 1) z += 8;
|
|
AddSortableSpriteToDraw(0x517 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_NS_2(const TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 4) z += 8;
|
|
AddSortableSpriteToDraw(0x517 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_WE_1(const TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 8) z += 8;
|
|
AddSortableSpriteToDraw(0x518 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_WE_2(const TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 2) z += 8;
|
|
AddSortableSpriteToDraw(0x518 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DetTrackDrawProc_Null(const TileInfo *ti)
|
|
{
|
|
/* nothing should be here */
|
|
}
|
|
|
|
typedef void DetailedTrackProc(const TileInfo *ti);
|
|
static DetailedTrackProc* const _detailed_track_proc[] = {
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
|
|
DrawTrackFence_NW,
|
|
DrawTrackFence_SE,
|
|
DrawTrackFence_NW_SE,
|
|
|
|
DrawTrackFence_NE,
|
|
DrawTrackFence_SW,
|
|
DrawTrackFence_NE_SW,
|
|
|
|
DrawTrackFence_NS_1,
|
|
DrawTrackFence_NS_2,
|
|
|
|
DrawTrackFence_WE_1,
|
|
DrawTrackFence_WE_2,
|
|
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
};
|
|
|
|
static void DrawSpecialBuilding(
|
|
uint32 image, uint32 offset,
|
|
const TileInfo* ti,
|
|
byte x, byte y, byte z,
|
|
byte xsize, byte ysize, byte zsize)
|
|
{
|
|
if (image & PALETTE_MODIFIER_COLOR) image |= _drawtile_track_palette;
|
|
image += offset;
|
|
if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
|
|
AddSortableSpriteToDraw(image, ti->x + x, ti->y + y, xsize, ysize, zsize, ti->z + z);
|
|
}
|
|
|
|
/**
|
|
* Draw ground sprite and track bits
|
|
* @param ti TileInfo
|
|
* @param track TrackBits to draw
|
|
* @param earth Draw as earth
|
|
* @param snow Draw as snow
|
|
* @param flat Always draw foundation
|
|
*/
|
|
static void DrawTrackBits(TileInfo* ti, TrackBits track, bool earth, bool snow, bool flat)
|
|
{
|
|
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
|
|
PalSpriteID image;
|
|
bool junction = false;
|
|
|
|
// Select the sprite to use.
|
|
(image = rti->base_sprites.track_y, track == TRACK_BIT_Y) ||
|
|
(image++, track == TRACK_BIT_X) ||
|
|
(image++, track == TRACK_BIT_UPPER) ||
|
|
(image++, track == TRACK_BIT_LOWER) ||
|
|
(image++, track == TRACK_BIT_RIGHT) ||
|
|
(image++, track == TRACK_BIT_LEFT) ||
|
|
(image++, track == TRACK_BIT_CROSS) ||
|
|
|
|
(image = rti->base_sprites.track_ns, track == TRACK_BIT_HORZ) ||
|
|
(image++, track == TRACK_BIT_VERT) ||
|
|
|
|
(junction = true, false) ||
|
|
(image = rti->base_sprites.ground, (track & TRACK_BIT_3WAY_NE) == 0) ||
|
|
(image++, (track & TRACK_BIT_3WAY_SW) == 0) ||
|
|
(image++, (track & TRACK_BIT_3WAY_NW) == 0) ||
|
|
(image++, (track & TRACK_BIT_3WAY_SE) == 0) ||
|
|
(image++, true);
|
|
|
|
if (ti->tileh != 0) {
|
|
int foundation;
|
|
|
|
if (flat) {
|
|
foundation = ti->tileh;
|
|
} else {
|
|
foundation = GetRailFoundation(ti->tileh, track);
|
|
}
|
|
|
|
if (foundation != 0)
|
|
DrawFoundation(ti, foundation);
|
|
|
|
// DrawFoundation() modifies ti.
|
|
// Default sloped sprites..
|
|
if (ti->tileh != 0)
|
|
image = _track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.track_y;
|
|
}
|
|
|
|
if (earth) {
|
|
image = (image & SPRITE_MASK) | PALETTE_TO_BARE_LAND; // Use brown palette
|
|
} else if (snow) {
|
|
image += rti->snow_offset;
|
|
}
|
|
|
|
DrawGroundSprite(image);
|
|
|
|
// Draw track pieces individually for junction tiles
|
|
if (junction) {
|
|
if (track & TRACK_BIT_X) DrawGroundSprite(rti->base_sprites.single_y);
|
|
if (track & TRACK_BIT_Y) DrawGroundSprite(rti->base_sprites.single_x);
|
|
if (track & TRACK_BIT_UPPER) DrawGroundSprite(rti->base_sprites.single_n);
|
|
if (track & TRACK_BIT_LOWER) DrawGroundSprite(rti->base_sprites.single_s);
|
|
if (track & TRACK_BIT_LEFT) DrawGroundSprite(rti->base_sprites.single_w);
|
|
if (track & TRACK_BIT_RIGHT) DrawGroundSprite(rti->base_sprites.single_e);
|
|
}
|
|
|
|
if (GB(_m[ti->tile].m3, 0, 4) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
|
|
|
|
}
|
|
|
|
static void DrawTile_Track(TileInfo *ti)
|
|
{
|
|
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
|
|
PalSpriteID image;
|
|
|
|
_drawtile_track_palette = SPRITE_PALETTE(PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)));
|
|
|
|
if (GetRailTileType(ti->tile) != RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
TrackBits rails = GetTrackBits(ti->tile);
|
|
bool earth = (_m[ti->tile].m2 & RAIL_MAP2LO_GROUND_MASK) == RAIL_GROUND_BROWN;
|
|
bool snow = (_m[ti->tile].m2 & RAIL_MAP2LO_GROUND_MASK) == RAIL_GROUND_ICE_DESERT;
|
|
|
|
DrawTrackBits(ti, rails, earth, snow, false);
|
|
|
|
if (_display_opt & DO_FULL_DETAIL) {
|
|
_detailed_track_proc[_m[ti->tile].m2 & RAIL_MAP2LO_GROUND_MASK](ti);
|
|
}
|
|
|
|
/* draw signals also? */
|
|
if (GetRailTileType(ti->tile) != RAIL_TYPE_SIGNALS) return;
|
|
|
|
{
|
|
byte m23;
|
|
|
|
m23 = (_m[ti->tile].m3 >> 4) | (_m[ti->tile].m2 & 0xF0);
|
|
|
|
#define HAS_SIGNAL(x) (m23 & (byte)(0x1 << (x)))
|
|
#define ISON_SIGNAL(x) (m23 & (byte)(0x10 << (x)))
|
|
#define MAYBE_DRAW_SIGNAL(x,y,z) if (HAS_SIGNAL(x)) DrawSignalHelper(ti, ISON_SIGNAL(x), ((y-0x4FB) << 4)|(z))
|
|
|
|
if (!(rails & TRACK_BIT_Y)) {
|
|
if (!(rails & TRACK_BIT_X)) {
|
|
if (rails & TRACK_BIT_LEFT) {
|
|
MAYBE_DRAW_SIGNAL(2, 0x509, 0);
|
|
MAYBE_DRAW_SIGNAL(3, 0x507, 1);
|
|
}
|
|
if (rails & TRACK_BIT_RIGHT) {
|
|
MAYBE_DRAW_SIGNAL(0, 0x509, 2);
|
|
MAYBE_DRAW_SIGNAL(1, 0x507, 3);
|
|
}
|
|
if (rails & TRACK_BIT_UPPER) {
|
|
MAYBE_DRAW_SIGNAL(3, 0x505, 4);
|
|
MAYBE_DRAW_SIGNAL(2, 0x503, 5);
|
|
}
|
|
if (rails & TRACK_BIT_LOWER) {
|
|
MAYBE_DRAW_SIGNAL(1, 0x505, 6);
|
|
MAYBE_DRAW_SIGNAL(0, 0x503, 7);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, 0x4FB, 8);
|
|
MAYBE_DRAW_SIGNAL(2, 0x4FD, 9);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, 0x4FF, 10);
|
|
MAYBE_DRAW_SIGNAL(2, 0x501, 11);
|
|
}
|
|
}
|
|
} else {
|
|
/* draw depots / waypoints */
|
|
const DrawTrackSeqStruct *drss;
|
|
byte type = ti->map5 & 0x3F; // 0-3: depots, 4-5: waypoints
|
|
|
|
if (ti->tileh != 0) DrawFoundation(ti, ti->tileh);
|
|
|
|
if (IsRailWaypoint(ti->tile) && HASBIT(_m[ti->tile].m3, 4)) {
|
|
// look for customization
|
|
byte stat_id = GetWaypointByTile(ti->tile)->stat_id;
|
|
const StationSpec *stat = GetCustomStation(STAT_CLASS_WAYP, stat_id);
|
|
|
|
if (stat != NULL) {
|
|
DrawTileSeqStruct const *seq;
|
|
// emulate station tile - open with building
|
|
const DrawTileSprites *cust = &stat->renderdata[2 + (ti->map5 & 0x1)];
|
|
uint32 relocation = GetCustomStationRelocation(stat, ComposeWaypointStation(ti->tile), 0);
|
|
|
|
/* We don't touch the 0x8000 bit. In all this
|
|
* waypoint code, it is used to indicate that
|
|
* we should offset by railtype, but we always
|
|
* do that for custom ground sprites and never
|
|
* for station sprites. And in the drawing
|
|
* code, it is used to indicate that the sprite
|
|
* should be drawn in company colors, and it's
|
|
* up to the GRF file to decide that. */
|
|
|
|
image = cust->ground_sprite;
|
|
image += (image < _custom_sprites_base) ? rti->total_offset : GetRailType(ti->tile);
|
|
|
|
DrawGroundSprite(image);
|
|
|
|
if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
|
|
|
|
foreach_draw_tile_seq(seq, cust->seq) {
|
|
DrawSpecialBuilding(
|
|
seq->image + relocation, 0, ti,
|
|
seq->delta_x, seq->delta_y, seq->delta_z,
|
|
seq->width, seq->height, seq->unk
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
drss = _track_depot_layout_table[type];
|
|
|
|
image = drss++->image;
|
|
/* @note This is kind of an ugly hack, as the PALETTE_MODIFIER_COLOR indicates
|
|
* whether the sprite is railtype dependent. Rewrite this asap */
|
|
if (image & PALETTE_MODIFIER_COLOR) image = (image & SPRITE_MASK) + rti->total_offset;
|
|
|
|
// adjust ground tile for desert
|
|
// (don't adjust for arctic depots, because snow in depots looks weird)
|
|
// type >= 4 means waypoints
|
|
if ((_m[ti->tile].m4 & RAIL_MAP2LO_GROUND_MASK) == RAIL_GROUND_ICE_DESERT &&
|
|
(_opt.landscape == LT_DESERT || type >= 4)) {
|
|
if (image != SPR_FLAT_GRASS_TILE) {
|
|
image += rti->snow_offset; // tile with tracks
|
|
} else {
|
|
image = SPR_FLAT_SNOWY_TILE; // flat ground
|
|
}
|
|
}
|
|
|
|
DrawGroundSprite(image);
|
|
|
|
if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC) DrawCatenary(ti);
|
|
|
|
for (; drss->image != 0; drss++) {
|
|
DrawSpecialBuilding(
|
|
drss->image, type < 4 ? rti->total_offset : 0, ti,
|
|
drss->subcoord_x, drss->subcoord_y, 0,
|
|
drss->width, drss->height, 0x17
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DrawTrainDepotSprite(int x, int y, int image, RailType railtype)
|
|
{
|
|
uint32 ormod, img;
|
|
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
|
|
const DrawTrackSeqStruct *dtss;
|
|
|
|
ormod = PLAYER_SPRITE_COLOR(_local_player);
|
|
|
|
dtss = _track_depot_layout_table[image];
|
|
|
|
x += 33;
|
|
y += 17;
|
|
|
|
img = dtss++->image;
|
|
/* @note This is kind of an ugly hack, as the PALETTE_MODIFIER_COLOR indicates
|
|
* whether the sprite is railtype dependent. Rewrite this asap */
|
|
if (img & PALETTE_MODIFIER_COLOR) img = (img & SPRITE_MASK) + rti->total_offset;
|
|
DrawSprite(img, x, y);
|
|
|
|
for (; dtss->image != 0; dtss++) {
|
|
Point pt = RemapCoords(dtss->subcoord_x, dtss->subcoord_y, 0);
|
|
image = dtss->image;
|
|
if (image & PALETTE_MODIFIER_COLOR) image |= ormod;
|
|
DrawSprite(image + rti->total_offset, x + pt.x, y + pt.y);
|
|
}
|
|
}
|
|
|
|
void DrawDefaultWaypointSprite(int x, int y, RailType railtype)
|
|
{
|
|
const DrawTrackSeqStruct *dtss = _track_depot_layout_table[4];
|
|
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
|
|
uint32 img;
|
|
|
|
img = dtss++->image;
|
|
if (img & PALETTE_MODIFIER_COLOR) img = (img & SPRITE_MASK) + rti->total_offset;
|
|
DrawSprite(img, x, y);
|
|
|
|
for (; dtss->image != 0; dtss++) {
|
|
Point pt = RemapCoords(dtss->subcoord_x, dtss->subcoord_y, 0);
|
|
img = dtss->image;
|
|
if (img & PALETTE_MODIFIER_COLOR) img |= PLAYER_SPRITE_COLOR(_local_player);
|
|
DrawSprite(img, x + pt.x, y + pt.y);
|
|
}
|
|
}
|
|
|
|
typedef struct SetSignalsData {
|
|
int cur;
|
|
int cur_stack;
|
|
bool stop;
|
|
bool has_presignal;
|
|
|
|
// presignal info
|
|
int presignal_exits;
|
|
int presignal_exits_free;
|
|
|
|
// these are used to keep track of the signals that change.
|
|
byte bit[NUM_SSD_ENTRY];
|
|
TileIndex tile[NUM_SSD_ENTRY];
|
|
|
|
// these are used to keep track of the stack that modifies presignals recursively
|
|
TileIndex next_tile[NUM_SSD_STACK];
|
|
byte next_dir[NUM_SSD_STACK];
|
|
|
|
} SetSignalsData;
|
|
|
|
static bool SetSignalsEnumProc(TileIndex tile, SetSignalsData *ssd, int track, uint length, byte *state)
|
|
{
|
|
if (!IsTileType(tile, MP_RAILWAY)) return false;
|
|
|
|
// the tile has signals?
|
|
if (HasSignalOnTrack(tile, TrackdirToTrack(track))) {
|
|
if (HasSignalOnTrackdir(tile, ReverseTrackdir(track))) {
|
|
// yes, add the signal to the list of signals
|
|
if (ssd->cur != NUM_SSD_ENTRY) {
|
|
ssd->tile[ssd->cur] = tile; // remember the tile index
|
|
ssd->bit[ssd->cur] = track; // and the controlling bit number
|
|
ssd->cur++;
|
|
}
|
|
|
|
// remember if this block has a presignal.
|
|
ssd->has_presignal |= (_m[tile].m4&1);
|
|
}
|
|
|
|
if (HasSignalOnTrackdir(tile, track) && _m[tile].m4 & 2) {
|
|
// this is an exit signal that points out from the segment
|
|
ssd->presignal_exits++;
|
|
if (GetSignalState(tile, track) != SIGNAL_STATE_RED)
|
|
ssd->presignal_exits_free++;
|
|
}
|
|
|
|
return true;
|
|
} else if (IsTileDepotType(tile, TRANSPORT_RAIL)) {
|
|
return true; // don't look further if the tile is a depot
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* Struct to parse data from VehicleFromPos to SignalVehicleCheckProc */
|
|
typedef struct SignalVehicleCheckStruct {
|
|
TileIndex tile;
|
|
uint track;
|
|
} SignalVehicleCheckStruct;
|
|
|
|
static void *SignalVehicleCheckProc(Vehicle *v, void *data)
|
|
{
|
|
const SignalVehicleCheckStruct* dest = data;
|
|
TileIndex tile;
|
|
|
|
if (v->type != VEH_Train) return NULL;
|
|
|
|
/* Find the tile outside the tunnel, for signalling */
|
|
if (v->u.rail.track == 0x40) {
|
|
tile = GetVehicleOutOfTunnelTile(v);
|
|
} else {
|
|
tile = v->tile;
|
|
}
|
|
|
|
/* Wrong tile, or no train? Not a match */
|
|
if (tile != dest->tile) return NULL;
|
|
|
|
/* Are we on the same piece of track? */
|
|
if (dest->track & (v->u.rail.track + (v->u.rail.track << 8))) return v;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Special check for SetSignalsAfterProc, to see if there is a vehicle on this tile */
|
|
static bool SignalVehicleCheck(TileIndex tile, uint track)
|
|
{
|
|
SignalVehicleCheckStruct dest;
|
|
|
|
dest.tile = tile;
|
|
dest.track = track;
|
|
|
|
/** @todo "Hackish" fix for the tunnel problems. This is needed because a tunnel
|
|
* is some kind of invisible black hole, and there is some special magic going
|
|
* on in there. This 'workaround' can be removed once the maprewrite is done.
|
|
*/
|
|
if (IsTunnelTile(tile)) {
|
|
// It is a tunnel we're checking, we need to do some special stuff
|
|
// because VehicleFromPos will not find the vihicle otherwise
|
|
TileIndex end = GetOtherTunnelEnd(tile);
|
|
DiagDirection direction = GetTunnelDirection(tile);
|
|
|
|
dest.track = 1 << (direction & 1); // get the trackbit the vehicle would have if it has not entered the tunnel yet (ie is still visible)
|
|
|
|
// check for a vehicle with that trackdir on the start tile of the tunnel
|
|
if (VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL) return true;
|
|
|
|
// check for a vehicle with that trackdir on the end tile of the tunnel
|
|
if (VehicleFromPos(end, &dest, SignalVehicleCheckProc) != NULL) return true;
|
|
|
|
// now check all tiles from start to end for a "hidden" vehicle
|
|
// NOTE: the hashes for tiles may overlap, so this could maybe be optimised a bit by not checking every tile?
|
|
dest.track = 0x40; // trackbit for vehicles "hidden" inside a tunnel
|
|
for (; tile != end; tile += TileOffsByDir(direction)) {
|
|
if (VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL)
|
|
return true;
|
|
}
|
|
|
|
// no vehicle found
|
|
return false;
|
|
}
|
|
|
|
return VehicleFromPos(tile, &dest, SignalVehicleCheckProc) != NULL;
|
|
}
|
|
|
|
static void SetSignalsAfterProc(TrackPathFinder *tpf)
|
|
{
|
|
SetSignalsData *ssd = tpf->userdata;
|
|
const TrackPathFinderLink* link;
|
|
uint offs;
|
|
uint i;
|
|
|
|
ssd->stop = false;
|
|
|
|
/* Go through all the PF tiles */
|
|
for (i = 0; i < lengthof(tpf->hash_head); i++) {
|
|
/* Empty hash item */
|
|
if (tpf->hash_head[i] == 0) continue;
|
|
|
|
/* If 0x8000 is not set, there is only 1 item */
|
|
if (!(tpf->hash_head[i] & 0x8000)) {
|
|
/* Check if there is a vehicle on this tile */
|
|
if (SignalVehicleCheck(tpf->hash_tile[i], tpf->hash_head[i])) {
|
|
ssd->stop = true;
|
|
return;
|
|
}
|
|
} else {
|
|
/* There are multiple items, where hash_tile points to the first item in the list */
|
|
offs = tpf->hash_tile[i];
|
|
do {
|
|
/* Find the next item */
|
|
link = PATHFIND_GET_LINK_PTR(tpf, offs);
|
|
/* Check if there is a vehicle on this tile */
|
|
if (SignalVehicleCheck(link->tile, link->flags)) {
|
|
ssd->stop = true;
|
|
return;
|
|
}
|
|
/* Goto the next item */
|
|
} while ((offs = link->next) != 0xFFFF);
|
|
}
|
|
}
|
|
}
|
|
|
|
static const byte _dir_from_track[14] = {
|
|
0,1,0,1,2,1, 0,0,
|
|
2,3,3,2,3,0,
|
|
};
|
|
|
|
|
|
static void ChangeSignalStates(SetSignalsData *ssd)
|
|
{
|
|
int i;
|
|
|
|
// thinking about presignals...
|
|
// the presignal is green if,
|
|
// if no train is in the segment AND
|
|
// there is at least one green exit signal OR
|
|
// there are no exit signals in the segment
|
|
|
|
// then mark the signals in the segment accordingly
|
|
for (i = 0; i != ssd->cur; i++) {
|
|
TileIndex tile = ssd->tile[i];
|
|
byte bit = SignalAgainstTrackdir(ssd->bit[i]);
|
|
uint16 m2 = _m[tile].m2;
|
|
|
|
// presignals don't turn green if there is at least one presignal exit and none are free
|
|
if (_m[tile].m4 & 1) {
|
|
int ex = ssd->presignal_exits, exfree = ssd->presignal_exits_free;
|
|
|
|
// subtract for dual combo signals so they don't count themselves
|
|
if (_m[tile].m4 & 2 && HasSignalOnTrackdir(tile, ssd->bit[i])) {
|
|
ex--;
|
|
if (GetSignalState(tile, ssd->bit[i]) != SIGNAL_STATE_RED) exfree--;
|
|
}
|
|
|
|
// if we have exits and none are free, make red.
|
|
if (ex && !exfree) goto make_red;
|
|
}
|
|
|
|
// check if the signal is unaffected.
|
|
if (ssd->stop) {
|
|
make_red:
|
|
// turn red
|
|
if ((bit & m2) == 0) continue;
|
|
} else {
|
|
// turn green
|
|
if ((bit & m2) != 0) continue;
|
|
}
|
|
|
|
/* Update signals on the other side of this exit-combo signal; it changed. */
|
|
if (_m[tile].m4 & 2) {
|
|
if (ssd->cur_stack != NUM_SSD_STACK) {
|
|
ssd->next_tile[ssd->cur_stack] = tile;
|
|
ssd->next_dir[ssd->cur_stack] = _dir_from_track[ssd->bit[i]];
|
|
ssd->cur_stack++;
|
|
} else {
|
|
printf("NUM_SSD_STACK too small\n"); /// @todo WTF is this???
|
|
}
|
|
}
|
|
|
|
// it changed, so toggle it
|
|
_m[tile].m2 = m2 ^ bit;
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
}
|
|
|
|
|
|
bool UpdateSignalsOnSegment(TileIndex tile, DiagDirection direction)
|
|
{
|
|
SetSignalsData ssd;
|
|
int result = -1;
|
|
|
|
ssd.cur_stack = 0;
|
|
|
|
for (;;) {
|
|
// go through one segment and update all signals pointing into that segment.
|
|
ssd.cur = ssd.presignal_exits = ssd.presignal_exits_free = 0;
|
|
ssd.has_presignal = false;
|
|
|
|
FollowTrack(tile, 0xC000 | TRANSPORT_RAIL, direction, (TPFEnumProc*)SetSignalsEnumProc, SetSignalsAfterProc, &ssd);
|
|
ChangeSignalStates(&ssd);
|
|
|
|
// remember the result only for the first iteration.
|
|
if (result < 0) result = ssd.stop;
|
|
|
|
// if any exit signals were changed, we need to keep going to modify the stuff behind those.
|
|
if (ssd.cur_stack == 0) break;
|
|
|
|
// one or more exit signals were changed, so we need to update another segment too.
|
|
tile = ssd.next_tile[--ssd.cur_stack];
|
|
direction = ssd.next_dir[ssd.cur_stack];
|
|
}
|
|
|
|
return result != 0;
|
|
}
|
|
|
|
void SetSignalsOnBothDir(TileIndex tile, byte track)
|
|
{
|
|
static const DiagDirection _search_dir_1[] = {
|
|
DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_SW, DIAGDIR_SE
|
|
};
|
|
static const DiagDirection _search_dir_2[] = {
|
|
DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NE
|
|
};
|
|
|
|
UpdateSignalsOnSegment(tile, _search_dir_1[track]);
|
|
UpdateSignalsOnSegment(tile, _search_dir_2[track]);
|
|
}
|
|
|
|
static uint GetSlopeZ_Track(const TileInfo* ti)
|
|
{
|
|
uint tileh = ti->tileh;
|
|
uint z = ti->z;
|
|
|
|
if (tileh == 0) return z;
|
|
if (GetRailTileType(ti->tile) == RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
return z + 8;
|
|
} else {
|
|
uint f = GetRailFoundation(ti->tileh, GetTrackBits(ti->tile));
|
|
|
|
if (f != 0) {
|
|
if (f < 15) return z + 8; // leveled foundation
|
|
tileh = _inclined_tileh[f - 15]; // inclined foundation
|
|
}
|
|
return z + GetPartialZ(ti->x & 0xF, ti->y & 0xF, tileh);
|
|
}
|
|
}
|
|
|
|
static uint GetSlopeTileh_Track(const TileInfo *ti)
|
|
{
|
|
if (ti->tileh == 0) return ti->tileh;
|
|
if (GetRailTileType(ti->tile) == RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
return 0;
|
|
} else {
|
|
uint f = GetRailFoundation(ti->tileh, GetTrackBits(ti->tile));
|
|
|
|
if (f == 0) return ti->tileh;
|
|
if (f < 15) return 0; // leveled foundation
|
|
return _inclined_tileh[f - 15]; // inclined foundation
|
|
}
|
|
}
|
|
|
|
static void GetAcceptedCargo_Track(TileIndex tile, AcceptedCargo ac)
|
|
{
|
|
/* not used */
|
|
}
|
|
|
|
static void AnimateTile_Track(TileIndex tile)
|
|
{
|
|
/* not used */
|
|
}
|
|
|
|
static void TileLoop_Track(TileIndex tile)
|
|
{
|
|
byte old_ground;
|
|
byte new_ground;
|
|
|
|
if (GetRailType(tile) == RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
old_ground = GB(_m[tile].m4, 0, 4);
|
|
} else {
|
|
old_ground = GB(_m[tile].m2, 0, 4);
|
|
}
|
|
|
|
switch (_opt.landscape) {
|
|
case LT_HILLY:
|
|
if (GetTileZ(tile) > _opt.snow_line) { /* convert into snow? */
|
|
new_ground = RAIL_GROUND_ICE_DESERT;
|
|
goto modify_me;
|
|
}
|
|
break;
|
|
|
|
case LT_DESERT:
|
|
if (GetMapExtraBits(tile) == 1) { /* convert into desert? */
|
|
new_ground = RAIL_GROUND_ICE_DESERT;
|
|
goto modify_me;
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Don't continue tile loop for depots
|
|
if (GetRailType(tile) == RAIL_TYPE_DEPOT_WAYPOINT) return;
|
|
|
|
new_ground = RAIL_GROUND_GREEN;
|
|
|
|
if (old_ground != RAIL_GROUND_BROWN) { /* wait until bottom is green */
|
|
/* determine direction of fence */
|
|
TrackBits rail = GetTrackBits(tile);
|
|
|
|
switch (rail) {
|
|
case TRACK_BIT_UPPER: new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
|
|
case TRACK_BIT_LOWER: new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
|
|
case TRACK_BIT_LEFT: new_ground = RAIL_GROUND_FENCE_VERT1; break;
|
|
case TRACK_BIT_RIGHT: new_ground = RAIL_GROUND_FENCE_VERT2; break;
|
|
|
|
default: {
|
|
PlayerID owner = GetTileOwner(tile);
|
|
|
|
if (rail == (TRACK_BIT_LOWER | TRACK_BIT_RIGHT) || (
|
|
(rail & TRACK_BIT_3WAY_NW) == 0 &&
|
|
(rail & TRACK_BIT_X)
|
|
)) {
|
|
TileIndex n = tile + TileDiffXY(0, -1);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_UPPER ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_LEFT) {
|
|
new_ground = RAIL_GROUND_FENCE_NW;
|
|
}
|
|
}
|
|
|
|
if (rail == (TRACK_BIT_UPPER | TRACK_BIT_LEFT) || (
|
|
(rail & TRACK_BIT_3WAY_SE) == 0 &&
|
|
(rail & TRACK_BIT_X)
|
|
)) {
|
|
TileIndex n = tile + TileDiffXY(0, 1);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_LOWER ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_RIGHT) {
|
|
new_ground = (new_ground == RAIL_GROUND_FENCE_NW) ?
|
|
RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
|
|
}
|
|
}
|
|
|
|
if (rail == (TRACK_BIT_LOWER | TRACK_BIT_LEFT) || (
|
|
(rail & TRACK_BIT_3WAY_NE) == 0 &&
|
|
(rail & TRACK_BIT_Y)
|
|
)) {
|
|
TileIndex n = tile + TileDiffXY(-1, 0);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_UPPER ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_RIGHT) {
|
|
new_ground = RAIL_GROUND_FENCE_NE;
|
|
}
|
|
}
|
|
|
|
if (rail == (TRACK_BIT_UPPER | TRACK_BIT_RIGHT) || (
|
|
(rail & TRACK_BIT_3WAY_SW) == 0 &&
|
|
(rail & TRACK_BIT_Y)
|
|
)) {
|
|
TileIndex n = tile + TileDiffXY(1, 0);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_LOWER ||
|
|
(_m[n].m5 & TRACK_BIT_MASK) == TRACK_BIT_LEFT) {
|
|
new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ?
|
|
RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
modify_me:;
|
|
/* tile changed? */
|
|
if (old_ground != new_ground) {
|
|
if (GetRailTileType(tile) == RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
SB(_m[tile].m4, 0, 4, new_ground);
|
|
} else {
|
|
SB(_m[tile].m2, 0, 4, new_ground);
|
|
}
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
}
|
|
|
|
|
|
static uint32 GetTileTrackStatus_Track(TileIndex tile, TransportType mode)
|
|
{
|
|
byte a;
|
|
uint16 b;
|
|
|
|
if (mode != TRANSPORT_RAIL) return 0;
|
|
|
|
if (GetRailTileType(tile) != RAIL_TYPE_DEPOT_WAYPOINT) {
|
|
TrackBits rails = GetTrackBits(tile);
|
|
uint32 ret = rails * 0x101;
|
|
|
|
if (GetRailTileType(tile) != RAIL_TYPE_SIGNALS) {
|
|
if (rails == TRACK_BIT_CROSS) ret |= 0x40;
|
|
} else {
|
|
/* has_signals */
|
|
|
|
a = _m[tile].m3;
|
|
b = _m[tile].m2;
|
|
|
|
b &= a;
|
|
|
|
/* When signals are not present (in neither
|
|
* direction), we pretend them to be green. (So if
|
|
* signals are only one way, the other way will
|
|
* implicitely become `red' */
|
|
if ((a & 0xC0) == 0) b |= 0xC0;
|
|
if ((a & 0x30) == 0) b |= 0x30;
|
|
|
|
if ((b & 0x80) == 0) ret |= 0x10070000;
|
|
if ((b & 0x40) == 0) ret |= 0x07100000;
|
|
if ((b & 0x20) == 0) ret |= 0x20080000;
|
|
if ((b & 0x10) == 0) ret |= 0x08200000;
|
|
}
|
|
return ret;
|
|
} else {
|
|
if (GetRailTileSubtype(tile) == RAIL_SUBTYPE_DEPOT) {
|
|
return (DiagDirToAxis(GetRailDepotDirection(tile)) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y) * 0x101;
|
|
} else {
|
|
return GetRailWaypointBits(tile) * 0x101;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ClickTile_Track(TileIndex tile)
|
|
{
|
|
if (IsTileDepotType(tile, TRANSPORT_RAIL)) {
|
|
ShowTrainDepotWindow(tile);
|
|
} else if (IsRailWaypoint(tile)) {
|
|
ShowRenameWaypointWindow(GetWaypointByTile(tile));
|
|
}
|
|
}
|
|
|
|
static void GetTileDesc_Track(TileIndex tile, TileDesc *td)
|
|
{
|
|
td->owner = GetTileOwner(tile);
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TYPE_NORMAL:
|
|
td->str = STR_1021_RAILROAD_TRACK;
|
|
break;
|
|
|
|
case RAIL_TYPE_SIGNALS: {
|
|
const StringID signal_type[] = {
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_SIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRESIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBOSIGNALS
|
|
};
|
|
|
|
td->str = signal_type[GetSignalType(tile)];
|
|
break;
|
|
}
|
|
|
|
case RAIL_TYPE_DEPOT_WAYPOINT:
|
|
default:
|
|
td->str = (GetRailTileSubtype(tile) == RAIL_SUBTYPE_DEPOT) ?
|
|
STR_1023_RAILROAD_TRAIN_DEPOT : STR_LANDINFO_WAYPOINT;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ChangeTileOwner_Track(TileIndex tile, PlayerID old_player, PlayerID new_player)
|
|
{
|
|
if (!IsTileOwner(tile, old_player)) return;
|
|
|
|
if (new_player != OWNER_SPECTATOR) {
|
|
SetTileOwner(tile, new_player);
|
|
} else {
|
|
DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
|
|
}
|
|
}
|
|
|
|
static const byte _fractcoords_behind[4] = { 0x8F, 0x8, 0x80, 0xF8 };
|
|
static const byte _fractcoords_enter[4] = { 0x8A, 0x48, 0x84, 0xA8 };
|
|
static const byte _deltacoord_leaveoffset[8] = {
|
|
-1, 0, 1, 0, /* x */
|
|
0, 1, 0, -1 /* y */
|
|
};
|
|
static const byte _depot_track_mask[4] = {1, 2, 1, 2};
|
|
|
|
static uint32 VehicleEnter_Track(Vehicle *v, TileIndex tile, int x, int y)
|
|
{
|
|
byte fract_coord;
|
|
byte fract_coord_leave;
|
|
DiagDirection dir;
|
|
int length;
|
|
|
|
// this routine applies only to trains in depot tiles
|
|
if (v->type != VEH_Train || !IsTileDepotType(tile, TRANSPORT_RAIL)) return 0;
|
|
|
|
/* depot direction */
|
|
dir = GetRailDepotDirection(tile);
|
|
|
|
/* calculate the point where the following wagon should be activated */
|
|
/* this depends on the length of the current vehicle */
|
|
length = v->u.rail.cached_veh_length;
|
|
|
|
fract_coord_leave =
|
|
((_fractcoords_enter[dir] & 0x0F) + // x
|
|
(length + 1) * _deltacoord_leaveoffset[dir]) +
|
|
(((_fractcoords_enter[dir] >> 4) + // y
|
|
((length + 1) * _deltacoord_leaveoffset[dir+4])) << 4);
|
|
|
|
fract_coord = (x & 0xF) + ((y & 0xF) << 4);
|
|
|
|
if (_fractcoords_behind[dir] == fract_coord) {
|
|
/* make sure a train is not entering the tile from behind */
|
|
return 8;
|
|
} else if (_fractcoords_enter[dir] == fract_coord) {
|
|
if (DiagDirToDir(ReverseDiagDir(dir)) == v->direction) {
|
|
/* enter the depot */
|
|
v->u.rail.track = 0x80,
|
|
v->vehstatus |= VS_HIDDEN; /* hide it */
|
|
v->direction = ReverseDir(v->direction);
|
|
if (v->next == NULL)
|
|
TrainEnterDepot(v, tile);
|
|
v->tile = tile;
|
|
InvalidateWindow(WC_VEHICLE_DEPOT, tile);
|
|
return 4;
|
|
}
|
|
} else if (fract_coord_leave == fract_coord) {
|
|
if (DiagDirToDir(dir) == v->direction) {
|
|
/* leave the depot? */
|
|
if ((v = v->next) != NULL) {
|
|
v->vehstatus &= ~VS_HIDDEN;
|
|
v->u.rail.track = _depot_track_mask[dir];
|
|
assert(v->u.rail.track);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void InitializeRail(void)
|
|
{
|
|
_last_built_train_depot_tile = 0;
|
|
}
|
|
|
|
const TileTypeProcs _tile_type_rail_procs = {
|
|
DrawTile_Track, /* draw_tile_proc */
|
|
GetSlopeZ_Track, /* get_slope_z_proc */
|
|
ClearTile_Track, /* clear_tile_proc */
|
|
GetAcceptedCargo_Track, /* get_accepted_cargo_proc */
|
|
GetTileDesc_Track, /* get_tile_desc_proc */
|
|
GetTileTrackStatus_Track, /* get_tile_track_status_proc */
|
|
ClickTile_Track, /* click_tile_proc */
|
|
AnimateTile_Track, /* animate_tile_proc */
|
|
TileLoop_Track, /* tile_loop_clear */
|
|
ChangeTileOwner_Track, /* change_tile_owner_clear */
|
|
NULL, /* get_produced_cargo_proc */
|
|
VehicleEnter_Track, /* vehicle_enter_tile_proc */
|
|
NULL, /* vehicle_leave_tile_proc */
|
|
GetSlopeTileh_Track, /* get_slope_tileh_proc */
|
|
};
|