mirror of
https://github.com/JGRennison/OpenTTD-patches.git
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2626 lines
89 KiB
C++
2626 lines
89 KiB
C++
/* $Id$ */
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/** @file rail_cmd.cpp Handling of rail tiles. */
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#include "stdafx.h"
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#include "openttd.h"
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#include "cmd_helper.h"
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#include "landscape.h"
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#include "town_map.h"
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#include "viewport_func.h"
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#include "command_func.h"
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#include "engine_base.h"
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#include "depot_base.h"
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#include "waypoint.h"
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#include "yapf/yapf.h"
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#include "newgrf_engine.h"
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#include "newgrf_station.h"
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#include "newgrf_commons.h"
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#include "train.h"
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#include "variables.h"
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#include "autoslope.h"
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#include "water.h"
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#include "tunnelbridge_map.h"
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#include "window_func.h"
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#include "vehicle_func.h"
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#include "sound_func.h"
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#include "tunnelbridge.h"
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#include "station_map.h"
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#include "functions.h"
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#include "elrail_func.h"
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#include "town.h"
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#include "table/strings.h"
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#include "table/railtypes.h"
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#include "table/track_land.h"
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RailtypeInfo _railtypes[RAILTYPE_END];
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assert_compile(sizeof(_original_railtypes) <= sizeof(_railtypes));
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/**
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* Initialize rail type information.
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*/
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void ResetRailTypes()
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{
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memset(_railtypes, 0, sizeof(_railtypes));
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memcpy(_railtypes, _original_railtypes, sizeof(_original_railtypes));
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}
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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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/* 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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/* 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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Vehicle *EnsureNoTrainOnTrackProc(Vehicle *v, void *data)
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{
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TrackBits rail_bits = *(TrackBits *)data;
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if (v->type != VEH_TRAIN) return NULL;
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Train *t = Train::From(v);
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if ((t->track != rail_bits) && !TracksOverlap(t->track | rail_bits)) return NULL;
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_error_message = VehicleInTheWayErrMsg(v);
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return v;
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}
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/**
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* Tests if a vehicle interacts with the specified track.
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* All track bits interact except parallel TRACK_BIT_HORZ or TRACK_BIT_VERT.
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*
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* @param tile The tile.
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* @param track The track.
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*/
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static bool EnsureNoTrainOnTrack(TileIndex tile, Track track)
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{
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TrackBits rail_bits = TrackToTrackBits(track);
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return !HasVehicleOnPos(tile, &rail_bits, &EnsureNoTrainOnTrackProc);
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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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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_ERROR_IMPOSSIBLE_TRACK_COMBINATION;
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if (!IsPlainRail(tile)) return false;
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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_ERROR_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) || HasSignals(tile)) {
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/* If we are not allowed to overlap (flag is on for ai companies 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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/** Valid TrackBits on a specific (non-steep)-slope without foundation */
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static const TrackBits _valid_tracks_without_foundation[15] = {
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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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TRACK_BIT_NONE,
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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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TRACK_BIT_NONE,
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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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/** Valid TrackBits on a specific (non-steep)-slope with leveled foundation */
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static const TrackBits _valid_tracks_on_leveled_foundation[15] = {
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TRACK_BIT_NONE,
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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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* Checks if a track combination is valid on a specific slope and returns the needed foundation.
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*
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* @param tileh Tile slope.
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* @param bits Trackbits.
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* @return Needed foundation or FOUNDATION_INVALID if track/slope combination is not allowed.
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*/
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Foundation GetRailFoundation(Slope tileh, TrackBits bits)
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{
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if (bits == TRACK_BIT_NONE) return FOUNDATION_NONE;
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if (IsSteepSlope(tileh)) {
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/* Test for inclined foundations */
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if (bits == TRACK_BIT_X) return FOUNDATION_INCLINED_X;
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if (bits == TRACK_BIT_Y) return FOUNDATION_INCLINED_Y;
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/* Get higher track */
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Corner highest_corner = GetHighestSlopeCorner(tileh);
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TrackBits higher_track = CornerToTrackBits(highest_corner);
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/* Only higher track? */
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if (bits == higher_track) return HalftileFoundation(highest_corner);
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/* Overlap with higher track? */
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if (TracksOverlap(bits | higher_track)) return FOUNDATION_INVALID;
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/* either lower track or both higher and lower track */
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return ((bits & higher_track) != 0 ? FOUNDATION_STEEP_BOTH : FOUNDATION_STEEP_LOWER);
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} else {
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if ((~_valid_tracks_without_foundation[tileh] & bits) == 0) return FOUNDATION_NONE;
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bool valid_on_leveled = ((~_valid_tracks_on_leveled_foundation[tileh] & bits) == 0);
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Corner track_corner;
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switch (bits) {
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case TRACK_BIT_LEFT: track_corner = CORNER_W; break;
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case TRACK_BIT_LOWER: track_corner = CORNER_S; break;
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case TRACK_BIT_RIGHT: track_corner = CORNER_E; break;
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case TRACK_BIT_UPPER: track_corner = CORNER_N; break;
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case TRACK_BIT_HORZ:
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if (tileh == SLOPE_N) return HalftileFoundation(CORNER_N);
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if (tileh == SLOPE_S) return HalftileFoundation(CORNER_S);
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return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
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case TRACK_BIT_VERT:
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if (tileh == SLOPE_W) return HalftileFoundation(CORNER_W);
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if (tileh == SLOPE_E) return HalftileFoundation(CORNER_E);
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return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
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case TRACK_BIT_X:
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if (IsSlopeWithOneCornerRaised(tileh)) return FOUNDATION_INCLINED_X;
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return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
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case TRACK_BIT_Y:
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if (IsSlopeWithOneCornerRaised(tileh)) return FOUNDATION_INCLINED_Y;
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return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
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default:
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return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
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}
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/* Single diagonal track */
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/* Track must be at least valid on leveled foundation */
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if (!valid_on_leveled) return FOUNDATION_INVALID;
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/* If slope has three raised corners, build leveled foundation */
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if (IsSlopeWithThreeCornersRaised(tileh)) return FOUNDATION_LEVELED;
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/* If neighboured corners of track_corner are lowered, build halftile foundation */
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if ((tileh & SlopeWithThreeCornersRaised(OppositeCorner(track_corner))) == SlopeWithOneCornerRaised(track_corner)) return HalftileFoundation(track_corner);
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/* else special anti-zig-zag foundation */
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return SpecialRailFoundation(track_corner);
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}
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}
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/**
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* Tests if a track can be build on a tile.
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*
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* @param tileh Tile slope.
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* @param rail_bits Tracks to build.
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* @param existing Tracks already built.
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* @param tile Tile (used for water test)
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* @return Error message or cost for foundation building.
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*/
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static CommandCost CheckRailSlope(Slope tileh, TrackBits rail_bits, TrackBits existing, TileIndex tile)
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{
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/* don't allow building on the lower side of a coast */
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if (IsTileType(tile, MP_WATER) || (IsTileType(tile, MP_RAILWAY) && (GetRailGroundType(tile) == RAIL_GROUND_WATER))) {
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if (!IsSteepSlope(tileh) && ((~_valid_tracks_on_leveled_foundation[tileh] & (rail_bits | existing)) != 0)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
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}
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Foundation f_new = GetRailFoundation(tileh, rail_bits | existing);
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/* check track/slope combination */
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if ((f_new == FOUNDATION_INVALID) ||
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((f_new != FOUNDATION_NONE) && (!_settings_game.construction.build_on_slopes))) {
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return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
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}
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Foundation f_old = GetRailFoundation(tileh, existing);
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return CommandCost(EXPENSES_CONSTRUCTION, f_new != f_old ? _price.terraform : (Money)0);
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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 tile tile to build on
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* @param flags operation to perform
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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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CommandCost CmdBuildSingleRail(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
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{
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Slope tileh;
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RailType railtype = (RailType)p1;
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Track track = (Track)p2;
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TrackBits trackbit;
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CommandCost cost(EXPENSES_CONSTRUCTION);
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CommandCost ret;
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if (!ValParamRailtype(railtype) || !ValParamTrackOrientation(track)) return CMD_ERROR;
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tileh = GetTileSlope(tile, NULL);
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trackbit = TrackToTrackBits(track);
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switch (GetTileType(tile)) {
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case MP_RAILWAY:
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if (!CheckTileOwnership(tile)) return CMD_ERROR;
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if (!IsPlainRail(tile)) return CMD_ERROR;
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if (!IsCompatibleRail(GetRailType(tile), railtype)) return_cmd_error(STR_ERROR_IMPOSSIBLE_TRACK_COMBINATION);
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if (!CheckTrackCombination(tile, trackbit, flags) ||
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!EnsureNoTrainOnTrack(tile, track)) {
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return CMD_ERROR;
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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.AddCost(ret);
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/* If the rail types don't match, try to convert only if engines of
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* the new rail type are not powered on the present rail type and engines of
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* the present rail type are powered on the new rail type. */
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if (GetRailType(tile) != railtype && !HasPowerOnRail(railtype, GetRailType(tile))) {
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if (HasPowerOnRail(GetRailType(tile), railtype)) {
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ret = DoCommand(tile, tile, railtype, flags, CMD_CONVERT_RAIL);
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if (CmdFailed(ret)) return ret;
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cost.AddCost(ret);
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} else {
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return CMD_ERROR;
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}
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}
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if (flags & DC_EXEC) {
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SetRailGroundType(tile, RAIL_GROUND_BARREN);
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SetTrackBits(tile, GetTrackBits(tile) | trackbit);
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}
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break;
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case MP_ROAD:
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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(SLOPE_SEN) | M(SLOPE_ENW) | M(SLOPE_NWS) | M(SLOPE_NS) | M(SLOPE_WSE) | M(SLOPE_EW) | M(SLOPE_FLAT), tileh)) {
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return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
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}
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#undef M
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if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
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if (IsNormalRoad(tile)) {
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if (HasRoadWorks(tile)) return_cmd_error(STR_ROAD_WORKS_IN_PROGRESS);
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if (GetDisallowedRoadDirections(tile) != DRD_NONE) return_cmd_error(STR_ERR_CROSSING_ON_ONEWAY_ROAD);
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RoadTypes roadtypes = GetRoadTypes(tile);
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RoadBits road = GetRoadBits(tile, ROADTYPE_ROAD);
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RoadBits tram = GetRoadBits(tile, ROADTYPE_TRAM);
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switch (roadtypes) {
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default: break;
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case ROADTYPES_TRAM:
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/* Tram crossings must always have road. */
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if (flags & DC_EXEC) SetRoadOwner(tile, ROADTYPE_ROAD, _current_company);
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roadtypes |= ROADTYPES_ROAD;
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break;
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case ROADTYPES_ALL:
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if (road != tram) return CMD_ERROR;
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break;
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}
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road |= tram;
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if ((track == TRACK_X && road == ROAD_Y) ||
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(track == TRACK_Y && road == ROAD_X)) {
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if (flags & DC_EXEC) {
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MakeRoadCrossing(tile, GetRoadOwner(tile, ROADTYPE_ROAD), GetRoadOwner(tile, ROADTYPE_TRAM), _current_company, (track == TRACK_X ? AXIS_Y : AXIS_X), railtype, roadtypes, GetTownIndex(tile));
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UpdateLevelCrossing(tile, false);
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}
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break;
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}
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}
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if (IsLevelCrossing(tile) && GetCrossingRailBits(tile) == trackbit) {
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return_cmd_error(STR_ERROR_ALREADY_BUILT);
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}
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/* FALLTHROUGH */
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default:
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/* Will there be flat water on the lower halftile? */
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bool water_ground = IsTileType(tile, MP_WATER) && IsSlopeWithOneCornerRaised(tileh);
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ret = CheckRailSlope(tileh, trackbit, TRACK_BIT_NONE, tile);
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if (CmdFailed(ret)) return ret;
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cost.AddCost(ret);
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ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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if (CmdFailed(ret)) return ret;
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cost.AddCost(ret);
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if (water_ground) {
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cost.AddCost(-_price.clear_water);
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cost.AddCost(_price.clear_roughland);
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}
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if (flags & DC_EXEC) {
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MakeRailNormal(tile, _current_company, trackbit, railtype);
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if (water_ground) SetRailGroundType(tile, RAIL_GROUND_WATER);
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}
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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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AddTrackToSignalBuffer(tile, track, _current_company);
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YapfNotifyTrackLayoutChange(tile, track);
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}
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return cost.AddCost(RailBuildCost(railtype));
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}
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/** Remove a single piece of track
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* @param tile tile to remove track from
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* @param flags operation to perform
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* @param p1 unused
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* @param p2 rail orientation
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*/
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CommandCost CmdRemoveSingleRail(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
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{
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Track track = (Track)p2;
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TrackBits trackbit;
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CommandCost cost(EXPENSES_CONSTRUCTION, _price.remove_rail );
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bool crossing = false;
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if (!ValParamTrackOrientation((Track)p2)) return CMD_ERROR;
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trackbit = TrackToTrackBits(track);
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/* Need to read tile owner now because it may change when the rail is removed
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* Also, in case of floods, _current_company != owner
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* There may be invalid tiletype even in exec run (when removing long track),
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* so do not call GetTileOwner(tile) in any case here */
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Owner owner = INVALID_OWNER;
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Train *v = NULL;
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switch (GetTileType(tile)) {
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case MP_ROAD: {
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if (!IsLevelCrossing(tile) ||
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GetCrossingRailBits(tile) != trackbit ||
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(_current_company != OWNER_WATER && !CheckTileOwnership(tile)) ||
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(!(flags & DC_BANKRUPT) && !EnsureNoVehicleOnGround(tile))) {
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return CMD_ERROR;
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}
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if (flags & DC_EXEC) {
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if (HasReservedTracks(tile, trackbit)) {
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v = GetTrainForReservation(tile, track);
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if (v != NULL) FreeTrainTrackReservation(v);
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}
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owner = GetTileOwner(tile);
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MakeRoadNormal(tile, GetCrossingRoadBits(tile), GetRoadTypes(tile), GetTownIndex(tile), GetRoadOwner(tile, ROADTYPE_ROAD), GetRoadOwner(tile, ROADTYPE_TRAM));
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}
|
|
break;
|
|
}
|
|
|
|
case MP_RAILWAY: {
|
|
TrackBits present;
|
|
|
|
if (!IsPlainRail(tile) ||
|
|
(_current_company != OWNER_WATER && !CheckTileOwnership(tile)) ||
|
|
!EnsureNoTrainOnTrack(tile, track)) {
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
present = GetTrackBits(tile);
|
|
if ((present & trackbit) == 0) return CMD_ERROR;
|
|
if (present == (TRACK_BIT_X | TRACK_BIT_Y)) crossing = true;
|
|
|
|
/* Charge extra to remove signals on the track, if they are there */
|
|
if (HasSignalOnTrack(tile, track))
|
|
cost.AddCost(DoCommand(tile, track, 0, flags, CMD_REMOVE_SIGNALS));
|
|
|
|
if (flags & DC_EXEC) {
|
|
if (HasReservedTracks(tile, trackbit)) {
|
|
v = GetTrainForReservation(tile, track);
|
|
if (v != NULL) FreeTrainTrackReservation(v);
|
|
}
|
|
owner = GetTileOwner(tile);
|
|
present ^= trackbit;
|
|
if (present == 0) {
|
|
Slope tileh = GetTileSlope(tile, NULL);
|
|
/* If there is flat water on the lower halftile, convert the tile to shore so the water remains */
|
|
if (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh)) {
|
|
MakeShore(tile);
|
|
} else {
|
|
DoClearSquare(tile);
|
|
}
|
|
} else {
|
|
SetTrackBits(tile, present);
|
|
SetTrackReservation(tile, GetTrackReservation(tile) & present);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
default: return CMD_ERROR;
|
|
}
|
|
|
|
if (flags & DC_EXEC) {
|
|
/* if we got that far, 'owner' variable is set correctly */
|
|
assert(Company::IsValidID(owner));
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
if (crossing) {
|
|
/* crossing is set when only TRACK_BIT_X and TRACK_BIT_Y are set. As we
|
|
* are removing one of these pieces, we'll need to update signals for
|
|
* both directions explicitly, as after the track is removed it won't
|
|
* 'connect' with the other piece. */
|
|
AddTrackToSignalBuffer(tile, TRACK_X, owner);
|
|
AddTrackToSignalBuffer(tile, TRACK_Y, owner);
|
|
YapfNotifyTrackLayoutChange(tile, TRACK_X);
|
|
YapfNotifyTrackLayoutChange(tile, TRACK_Y);
|
|
} else {
|
|
AddTrackToSignalBuffer(tile, track, owner);
|
|
YapfNotifyTrackLayoutChange(tile, track);
|
|
}
|
|
|
|
if (v != NULL) TryPathReserve(v, true);
|
|
}
|
|
|
|
return cost;
|
|
}
|
|
|
|
|
|
/**
|
|
* Called from water_cmd if a non-flat rail-tile gets flooded and should be converted to shore.
|
|
* The function floods the lower halftile, if the tile has a halftile foundation.
|
|
*
|
|
* @param t The tile to flood.
|
|
* @return true if something was flooded.
|
|
*/
|
|
bool FloodHalftile(TileIndex t)
|
|
{
|
|
assert(IsPlainRailTile(t));
|
|
|
|
bool flooded = false;
|
|
if (GetRailGroundType(t) == RAIL_GROUND_WATER) return flooded;
|
|
|
|
Slope tileh = GetTileSlope(t, NULL);
|
|
TrackBits rail_bits = GetTrackBits(t);
|
|
|
|
if (IsSlopeWithOneCornerRaised(tileh)) {
|
|
TrackBits lower_track = CornerToTrackBits(OppositeCorner(GetHighestSlopeCorner(tileh)));
|
|
|
|
TrackBits to_remove = lower_track & rail_bits;
|
|
if (to_remove != 0) {
|
|
_current_company = OWNER_WATER;
|
|
if (CmdFailed(DoCommand(t, 0, FIND_FIRST_BIT(to_remove), DC_EXEC, CMD_REMOVE_SINGLE_RAIL))) return flooded; // not yet floodable
|
|
flooded = true;
|
|
rail_bits = rail_bits & ~to_remove;
|
|
if (rail_bits == 0) {
|
|
MakeShore(t);
|
|
MarkTileDirtyByTile(t);
|
|
return flooded;
|
|
}
|
|
}
|
|
|
|
if (IsNonContinuousFoundation(GetRailFoundation(tileh, rail_bits))) {
|
|
flooded = true;
|
|
SetRailGroundType(t, RAIL_GROUND_WATER);
|
|
MarkTileDirtyByTile(t);
|
|
}
|
|
} else {
|
|
/* Make shore on steep slopes and 'three-corners-raised'-slopes. */
|
|
if (ApplyFoundationToSlope(GetRailFoundation(tileh, rail_bits), &tileh) == 0) {
|
|
if (IsSteepSlope(tileh) || IsSlopeWithThreeCornersRaised(tileh)) {
|
|
flooded = true;
|
|
SetRailGroundType(t, RAIL_GROUND_WATER);
|
|
MarkTileDirtyByTile(t);
|
|
}
|
|
}
|
|
}
|
|
return flooded;
|
|
}
|
|
|
|
static const TileIndexDiffC _trackdelta[] = {
|
|
{ -1, 0 }, { 0, 1 }, { -1, 0 }, { 0, 1 }, { 1, 0 }, { 0, 1 },
|
|
{ 0, 0 },
|
|
{ 0, 0 },
|
|
{ 1, 0 }, { 0, -1 }, { 0, -1 }, { 1, 0 }, { 0, -1 }, { -1, 0 },
|
|
{ 0, 0 },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
|
|
static CommandCost ValidateAutoDrag(Trackdir *trackdir, TileIndex start, TileIndex end)
|
|
{
|
|
int x = TileX(start);
|
|
int y = TileY(start);
|
|
int ex = TileX(end);
|
|
int ey = TileY(end);
|
|
int dx, dy, trdx, trdy;
|
|
|
|
if (!ValParamTrackOrientation(TrackdirToTrack(*trackdir))) return CMD_ERROR;
|
|
|
|
/* calculate delta x,y from start to end tile */
|
|
dx = ex - x;
|
|
dy = ey - y;
|
|
|
|
/* calculate delta x,y for the first direction */
|
|
trdx = _trackdelta[*trackdir].x;
|
|
trdy = _trackdelta[*trackdir].y;
|
|
|
|
if (!IsDiagonalTrackdir(*trackdir)) {
|
|
trdx += _trackdelta[*trackdir ^ 1].x;
|
|
trdy += _trackdelta[*trackdir ^ 1].y;
|
|
}
|
|
|
|
/* validate the direction */
|
|
while (
|
|
(trdx <= 0 && dx > 0) ||
|
|
(trdx >= 0 && dx < 0) ||
|
|
(trdy <= 0 && dy > 0) ||
|
|
(trdy >= 0 && dy < 0)
|
|
) {
|
|
if (!HasBit(*trackdir, 3)) { // first direction is invalid, try the other
|
|
SetBit(*trackdir, 3); // reverse the direction
|
|
trdx = -trdx;
|
|
trdy = -trdy;
|
|
} else { // other direction is invalid too, invalid drag
|
|
return CMD_ERROR;
|
|
}
|
|
}
|
|
|
|
/* (for diagonal tracks, this is already made sure of by above test), but:
|
|
* for non-diagonal tracks, check if the start and end tile are on 1 line */
|
|
if (!IsDiagonalTrackdir(*trackdir)) {
|
|
trdx = _trackdelta[*trackdir].x;
|
|
trdy = _trackdelta[*trackdir].y;
|
|
if (abs(dx) != abs(dy) && abs(dx) + abs(trdy) != abs(dy) + abs(trdx))
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
return CommandCost();
|
|
}
|
|
|
|
/** Build a stretch of railroad tracks.
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0-3) - railroad type normal/maglev (0 = normal, 1 = mono, 2 = maglev)
|
|
* - p2 = (bit 4-6) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 7) - 0 = build, 1 = remove tracks
|
|
*/
|
|
static CommandCost CmdRailTrackHelper(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
CommandCost ret, total_cost(EXPENSES_CONSTRUCTION);
|
|
Track track = (Track)GB(p2, 4, 3);
|
|
bool remove = HasBit(p2, 7);
|
|
RailType railtype = (RailType)GB(p2, 0, 4);
|
|
|
|
if (!ValParamRailtype(railtype) || !ValParamTrackOrientation(track)) return CMD_ERROR;
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
TileIndex end_tile = p1;
|
|
Trackdir trackdir = TrackToTrackdir(track);
|
|
|
|
if (CmdFailed(ValidateAutoDrag(&trackdir, tile, end_tile))) return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) SndPlayTileFx(SND_20_SPLAT_2, tile);
|
|
|
|
for (;;) {
|
|
ret = DoCommand(tile, railtype, TrackdirToTrack(trackdir), flags, remove ? CMD_REMOVE_SINGLE_RAIL : CMD_BUILD_SINGLE_RAIL);
|
|
|
|
if (CmdFailed(ret)) {
|
|
if (_error_message != STR_ERROR_ALREADY_BUILT && !remove) break;
|
|
_error_message = INVALID_STRING_ID;
|
|
} else {
|
|
total_cost.AddCost(ret);
|
|
}
|
|
|
|
if (tile == end_tile) break;
|
|
|
|
tile += ToTileIndexDiff(_trackdelta[trackdir]);
|
|
|
|
/* toggle railbit for the non-diagonal tracks */
|
|
if (!IsDiagonalTrackdir(trackdir)) ToggleBit(trackdir, 0);
|
|
}
|
|
|
|
return (total_cost.GetCost() == 0) ? CommandCost(remove ? INVALID_STRING_ID : (_error_message == INVALID_STRING_ID ? STR_ERROR_ALREADY_BUILT : _error_message)) : total_cost;
|
|
}
|
|
|
|
/** Build rail on a stretch of track.
|
|
* Stub for the unified rail builder/remover
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0-3) - railroad type normal/maglev (0 = normal, 1 = mono, 2 = maglev)
|
|
* - p2 = (bit 4-6) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 7) - 0 = build, 1 = remove tracks
|
|
* @see CmdRailTrackHelper
|
|
*/
|
|
CommandCost CmdBuildRailroadTrack(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
return CmdRailTrackHelper(tile, flags, p1, ClrBit(p2, 7), text);
|
|
}
|
|
|
|
/** Build rail on a stretch of track.
|
|
* Stub for the unified rail builder/remover
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0-3) - railroad type normal/maglev (0 = normal, 1 = mono, 2 = maglev)
|
|
* - p2 = (bit 4-6) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 7) - 0 = build, 1 = remove tracks
|
|
* @see CmdRailTrackHelper
|
|
*/
|
|
CommandCost CmdRemoveRailroadTrack(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
return CmdRailTrackHelper(tile, flags, p1, SetBit(p2, 7), text);
|
|
}
|
|
|
|
/** Build a train depot
|
|
* @param tile position of the train depot
|
|
* @param flags operation to perform
|
|
* @param p1 rail type
|
|
* @param p2 bit 0..1 entrance direction (DiagDirection)
|
|
*
|
|
* @todo When checking for the tile slope,
|
|
* distingush between "Flat land required" and "land sloped in wrong direction"
|
|
*/
|
|
CommandCost CmdBuildTrainDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
Slope tileh;
|
|
|
|
/* check railtype and valid direction for depot (0 through 3), 4 in total */
|
|
if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
|
|
|
|
tileh = GetTileSlope(tile, NULL);
|
|
|
|
DiagDirection dir = Extract<DiagDirection, 0>(p2);
|
|
|
|
/* Prohibit construction if
|
|
* The tile is non-flat AND
|
|
* 1) build-on-slopes is disabled
|
|
* 2) the tile is steep i.e. spans two height levels
|
|
* 3) the exit points in the wrong direction
|
|
*/
|
|
|
|
if (tileh != SLOPE_FLAT && (
|
|
!_settings_game.construction.build_on_slopes ||
|
|
IsSteepSlope(tileh) ||
|
|
!CanBuildDepotByTileh(dir, tileh)
|
|
)) {
|
|
return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
|
|
}
|
|
|
|
CommandCost cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
|
|
if (CmdFailed(cost)) return CMD_ERROR;
|
|
|
|
if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
|
|
|
|
if (!Depot::CanAllocateItem()) return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
Depot *d = new Depot(tile);
|
|
MakeRailDepot(tile, _current_company, dir, (RailType)p1);
|
|
MarkTileDirtyByTile(tile);
|
|
|
|
d->town_index = ClosestTownFromTile(tile, UINT_MAX)->index;
|
|
|
|
AddSideToSignalBuffer(tile, INVALID_DIAGDIR, _current_company);
|
|
YapfNotifyTrackLayoutChange(tile, DiagDirToDiagTrack(dir));
|
|
}
|
|
|
|
return cost.AddCost(_price.build_train_depot);
|
|
}
|
|
|
|
/** Build signals, alternate between double/single, signal/semaphore,
|
|
* pre/exit/combo-signals, and what-else not. If the rail piece does not
|
|
* have any signals, bit 4 (cycle signal-type) is ignored
|
|
* @param tile tile where to build the signals
|
|
* @param flags operation to perform
|
|
* @param p1 various bitstuffed elements
|
|
* - p1 = (bit 0-2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p1 = (bit 3) - 1 = override signal/semaphore, or pre/exit/combo signal or (for bit 7) toggle variant (CTRL-toggle)
|
|
* - p1 = (bit 4) - 0 = signals, 1 = semaphores
|
|
* - p1 = (bit 5-7) - type of the signal, for valid values see enum SignalType in rail_map.h
|
|
* - p1 = (bit 8) - convert the present signal type and variant
|
|
* - p1 = (bit 9-11)- start cycle from this signal type
|
|
* - p1 = (bit 12-14)-wrap around after this signal type
|
|
* - p1 = (bit 15-16)-cycle the signal direction this many times
|
|
* - p1 = (bit 17) - 1 = don't modify an existing signal but don't fail either, 0 = always set new signal type
|
|
* @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.
|
|
*/
|
|
CommandCost CmdBuildSingleSignal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
Track track = (Track)GB(p1, 0, 3);
|
|
bool ctrl_pressed = HasBit(p1, 3); // was the CTRL button pressed
|
|
SignalVariant sigvar = (ctrl_pressed ^ HasBit(p1, 4)) ? SIG_SEMAPHORE : SIG_ELECTRIC; // the signal variant of the new signal
|
|
SignalType sigtype = (SignalType)GB(p1, 5, 3); // the signal type of the new signal
|
|
bool convert_signal = HasBit(p1, 8); // convert button pressed
|
|
SignalType cycle_start = (SignalType)GB(p1, 9, 3);
|
|
SignalType cycle_stop = (SignalType)GB(p1, 12, 3);
|
|
CommandCost cost;
|
|
uint num_dir_cycle = GB(p1, 15, 2);
|
|
|
|
if (sigtype > SIGTYPE_LAST) return CMD_ERROR;
|
|
|
|
/* You can only build signals on plain rail tiles, and the selected track must exist */
|
|
if (!ValParamTrackOrientation(track) || !IsPlainRailTile(tile) ||
|
|
!HasTrack(tile, track) || !EnsureNoTrainOnTrack(tile, track)) {
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
/* Protect against invalid signal copying */
|
|
if (p2 != 0 && (p2 & SignalOnTrack(track)) == 0) return CMD_ERROR;
|
|
|
|
if (!CheckTileOwnership(tile)) return CMD_ERROR;
|
|
|
|
{
|
|
/* See if this is a valid track combination for signals, (ie, no overlap) */
|
|
TrackBits trackbits = GetTrackBits(tile);
|
|
if (KillFirstBit(trackbits) != TRACK_BIT_NONE && // More than one track present
|
|
trackbits != TRACK_BIT_HORZ &&
|
|
trackbits != TRACK_BIT_VERT) {
|
|
return_cmd_error(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK);
|
|
}
|
|
}
|
|
|
|
/* In case we don't want to change an existing signal, return without error. */
|
|
if (HasBit(p1, 17) && HasSignalOnTrack(tile, track)) return CommandCost();
|
|
|
|
/* you can not convert a signal if no signal is on track */
|
|
if (convert_signal && !HasSignalOnTrack(tile, track)) return CMD_ERROR;
|
|
|
|
if (!HasSignalOnTrack(tile, track)) {
|
|
/* build new signals */
|
|
cost = CommandCost(EXPENSES_CONSTRUCTION, _price.build_signals);
|
|
} else {
|
|
if (p2 != 0 && sigvar != GetSignalVariant(tile, track)) {
|
|
/* convert signals <-> semaphores */
|
|
cost = CommandCost(EXPENSES_CONSTRUCTION, _price.build_signals + _price.remove_signals);
|
|
|
|
} else if (convert_signal) {
|
|
/* convert button pressed */
|
|
if (ctrl_pressed || GetSignalVariant(tile, track) != sigvar) {
|
|
/* convert electric <-> semaphore */
|
|
cost = CommandCost(EXPENSES_CONSTRUCTION, _price.build_signals + _price.remove_signals);
|
|
} else {
|
|
/* it is free to change signal type: normal-pre-exit-combo */
|
|
cost = CommandCost();
|
|
}
|
|
|
|
} else {
|
|
/* it is free to change orientation/pre-exit-combo signals */
|
|
cost = CommandCost();
|
|
}
|
|
}
|
|
|
|
if (flags & DC_EXEC) {
|
|
Train *v = NULL;
|
|
/* The new/changed signal could block our path. As this can lead to
|
|
* stale reservations, we clear the path reservation here and try
|
|
* to redo it later on. */
|
|
if (HasReservedTracks(tile, TrackToTrackBits(track))) {
|
|
v = GetTrainForReservation(tile, track);
|
|
if (v != NULL) FreeTrainTrackReservation(v);
|
|
}
|
|
|
|
if (!HasSignals(tile)) {
|
|
/* there are no signals at all on this tile yet */
|
|
SetHasSignals(tile, true);
|
|
SetSignalStates(tile, 0xF); // all signals are on
|
|
SetPresentSignals(tile, 0); // no signals built by default
|
|
SetSignalType(tile, track, sigtype);
|
|
SetSignalVariant(tile, track, sigvar);
|
|
}
|
|
|
|
if (p2 == 0) {
|
|
if (!HasSignalOnTrack(tile, track)) {
|
|
/* build new signals */
|
|
SetPresentSignals(tile, GetPresentSignals(tile) | (IsPbsSignal(sigtype) ? KillFirstBit(SignalOnTrack(track)) : SignalOnTrack(track)));
|
|
SetSignalType(tile, track, sigtype);
|
|
SetSignalVariant(tile, track, sigvar);
|
|
while (num_dir_cycle-- > 0) CycleSignalSide(tile, track);
|
|
} else {
|
|
if (convert_signal) {
|
|
/* convert signal button pressed */
|
|
if (ctrl_pressed) {
|
|
/* toggle the pressent signal variant: SIG_ELECTRIC <-> SIG_SEMAPHORE */
|
|
SetSignalVariant(tile, track, (GetSignalVariant(tile, track) == SIG_ELECTRIC) ? SIG_SEMAPHORE : SIG_ELECTRIC);
|
|
/* Query current signal type so the check for PBS signals below works. */
|
|
sigtype = GetSignalType(tile, track);
|
|
} else {
|
|
/* convert the present signal to the chosen type and variant */
|
|
SetSignalType(tile, track, sigtype);
|
|
SetSignalVariant(tile, track, sigvar);
|
|
if (IsPbsSignal(sigtype) && (GetPresentSignals(tile) & SignalOnTrack(track)) == SignalOnTrack(track)) {
|
|
SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | KillFirstBit(SignalOnTrack(track)));
|
|
}
|
|
}
|
|
|
|
} else if (ctrl_pressed) {
|
|
/* cycle between cycle_start and cycle_end */
|
|
sigtype = (SignalType)(GetSignalType(tile, track) + 1);
|
|
|
|
if (sigtype < cycle_start || sigtype > cycle_stop) sigtype = cycle_start;
|
|
|
|
SetSignalType(tile, track, sigtype);
|
|
if (IsPbsSignal(sigtype) && (GetPresentSignals(tile) & SignalOnTrack(track)) == SignalOnTrack(track)) {
|
|
SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | KillFirstBit(SignalOnTrack(track)));
|
|
}
|
|
} else {
|
|
/* cycle the signal side: both -> left -> right -> both -> ... */
|
|
CycleSignalSide(tile, track);
|
|
/* Query current signal type so the check for PBS signals below works. */
|
|
sigtype = GetSignalType(tile, track);
|
|
}
|
|
}
|
|
} else {
|
|
/* If CmdBuildManySignals is called with copying signals, just copy the
|
|
* direction of the first signal given as parameter by CmdBuildManySignals */
|
|
SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | (p2 & SignalOnTrack(track)));
|
|
SetSignalVariant(tile, track, sigvar);
|
|
SetSignalType(tile, track, sigtype);
|
|
}
|
|
|
|
if (IsPbsSignal(sigtype)) {
|
|
/* PBS signals should show red unless they are on a reservation. */
|
|
uint mask = GetPresentSignals(tile) & SignalOnTrack(track);
|
|
SetSignalStates(tile, (GetSignalStates(tile) & ~mask) | ((HasBit(GetTrackReservation(tile), track) ? UINT_MAX : 0) & mask));
|
|
}
|
|
MarkTileDirtyByTile(tile);
|
|
AddTrackToSignalBuffer(tile, track, _current_company);
|
|
YapfNotifyTrackLayoutChange(tile, track);
|
|
if (v != NULL) TryPathReserve(v, true);
|
|
}
|
|
|
|
return cost;
|
|
}
|
|
|
|
static bool CheckSignalAutoFill(TileIndex &tile, Trackdir &trackdir, int &signal_ctr, bool remove)
|
|
{
|
|
tile = AddTileIndexDiffCWrap(tile, _trackdelta[trackdir]);
|
|
if (tile == INVALID_TILE) return false;
|
|
|
|
/* Check for track bits on the new tile */
|
|
TrackdirBits trackdirbits = TrackStatusToTrackdirBits(GetTileTrackStatus(tile, TRANSPORT_RAIL, 0));
|
|
|
|
if (TracksOverlap(TrackdirBitsToTrackBits(trackdirbits))) return false;
|
|
trackdirbits &= TrackdirReachesTrackdirs(trackdir);
|
|
|
|
/* No track bits, must stop */
|
|
if (trackdirbits == TRACKDIR_BIT_NONE) return false;
|
|
|
|
/* Get the first track dir */
|
|
trackdir = RemoveFirstTrackdir(&trackdirbits);
|
|
|
|
/* Any left? It's a junction so we stop */
|
|
if (trackdirbits != TRACKDIR_BIT_NONE) return false;
|
|
|
|
switch (GetTileType(tile)) {
|
|
case MP_RAILWAY:
|
|
if (IsRailDepot(tile)) return false;
|
|
if (!remove && HasSignalOnTrack(tile, TrackdirToTrack(trackdir))) return false;
|
|
signal_ctr++;
|
|
if (IsDiagonalTrackdir(trackdir)) {
|
|
signal_ctr++;
|
|
/* Ensure signal_ctr even so X and Y pieces get signals */
|
|
ClrBit(signal_ctr, 0);
|
|
}
|
|
return true;
|
|
|
|
case MP_ROAD:
|
|
if (!IsLevelCrossing(tile)) return false;
|
|
signal_ctr += 2;
|
|
return true;
|
|
|
|
case MP_TUNNELBRIDGE: {
|
|
TileIndex orig_tile = tile; // backup old value
|
|
|
|
if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) return false;
|
|
if (GetTunnelBridgeDirection(tile) != TrackdirToExitdir(trackdir)) return false;
|
|
|
|
/* Skip to end of tunnel or bridge
|
|
* note that tile is a parameter by reference, so it must be updated */
|
|
tile = GetOtherTunnelBridgeEnd(tile);
|
|
|
|
signal_ctr += (GetTunnelBridgeLength(orig_tile, tile) + 2) * 2;
|
|
return true;
|
|
}
|
|
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
/** Build many signals by dragging; AutoSignals
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0- 2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 3) - 1 = override signal/semaphore, or pre/exit/combo signal (CTRL-toggle)
|
|
* - p2 = (bit 4) - 0 = signals, 1 = semaphores
|
|
* - p2 = (bit 5) - 0 = build, 1 = remove signals
|
|
* - p2 = (bit 6) - 0 = selected stretch, 1 = auto fill
|
|
* - p2 = (bit 7- 9) - default signal type
|
|
* - p2 = (bit 24-31) - user defined signals_density
|
|
*/
|
|
static CommandCost CmdSignalTrackHelper(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
CommandCost ret, total_cost(EXPENSES_CONSTRUCTION);
|
|
int signal_ctr;
|
|
byte signals;
|
|
bool error = true;
|
|
TileIndex end_tile;
|
|
TileIndex start_tile = tile;
|
|
|
|
Track track = (Track)GB(p2, 0, 3);
|
|
bool mode = HasBit(p2, 3);
|
|
bool semaphores = HasBit(p2, 4);
|
|
bool remove = HasBit(p2, 5);
|
|
bool autofill = HasBit(p2, 6);
|
|
Trackdir trackdir = TrackToTrackdir(track);
|
|
byte signal_density = GB(p2, 24, 8);
|
|
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
end_tile = p1;
|
|
if (signal_density == 0 || signal_density > 20) return CMD_ERROR;
|
|
|
|
if (!IsPlainRailTile(tile)) return CMD_ERROR;
|
|
|
|
/* for vertical/horizontal tracks, double the given signals density
|
|
* since the original amount will be too dense (shorter tracks) */
|
|
signal_density *= 2;
|
|
|
|
if (CmdFailed(ValidateAutoDrag(&trackdir, tile, end_tile))) return CMD_ERROR;
|
|
|
|
track = TrackdirToTrack(trackdir); // trackdir might have changed, keep track in sync
|
|
Trackdir start_trackdir = trackdir;
|
|
|
|
/* Must start on a valid track to be able to avoid loops */
|
|
if (!HasTrack(tile, track)) return CMD_ERROR;
|
|
|
|
SignalType sigtype = (SignalType)GB(p2, 7, 3);
|
|
if (sigtype > SIGTYPE_LAST) return CMD_ERROR;
|
|
|
|
/* copy the signal-style of the first rail-piece if existing */
|
|
if (HasSignalOnTrack(tile, track)) {
|
|
signals = GetPresentSignals(tile) & SignalOnTrack(track);
|
|
assert(signals != 0);
|
|
|
|
/* copy signal/semaphores style (independent of CTRL) */
|
|
semaphores = GetSignalVariant(tile, track) != SIG_ELECTRIC;
|
|
|
|
sigtype = GetSignalType(tile, track);
|
|
/* Don't but copy pre-signal type */
|
|
if (sigtype < SIGTYPE_PBS) sigtype = SIGTYPE_NORMAL;
|
|
} else { // no signals exist, drag a two-way signal stretch
|
|
signals = IsPbsSignal(sigtype) ? SignalAlongTrackdir(trackdir) : SignalOnTrack(track);
|
|
}
|
|
|
|
byte signal_dir = 0;
|
|
if (signals & SignalAlongTrackdir(trackdir)) SetBit(signal_dir, 0);
|
|
if (signals & SignalAgainstTrackdir(trackdir)) SetBit(signal_dir, 1);
|
|
|
|
/* signal_ctr - amount of tiles already processed
|
|
* signals_density - 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
|
|
* remove - 1 remove signals, 0 build signals */
|
|
signal_ctr = 0;
|
|
for (;;) {
|
|
/* only build/remove signals with the specified density */
|
|
if ((remove && autofill) || signal_ctr % signal_density == 0) {
|
|
uint32 p1 = GB(TrackdirToTrack(trackdir), 0, 3);
|
|
SB(p1, 3, 1, mode);
|
|
SB(p1, 4, 1, semaphores);
|
|
SB(p1, 5, 3, sigtype);
|
|
if (!remove && signal_ctr == 0) SetBit(p1, 17);
|
|
|
|
/* Pick the correct orientation for the track direction */
|
|
signals = 0;
|
|
if (HasBit(signal_dir, 0)) signals |= SignalAlongTrackdir(trackdir);
|
|
if (HasBit(signal_dir, 1)) signals |= SignalAgainstTrackdir(trackdir);
|
|
|
|
ret = DoCommand(tile, p1, signals, flags, remove ? CMD_REMOVE_SIGNALS : CMD_BUILD_SIGNALS);
|
|
|
|
/* Be user-friendly and try placing signals as much as possible */
|
|
if (CmdSucceeded(ret)) {
|
|
error = false;
|
|
total_cost.AddCost(ret);
|
|
}
|
|
}
|
|
|
|
if (autofill) {
|
|
if (!CheckSignalAutoFill(tile, trackdir, signal_ctr, remove)) break;
|
|
|
|
/* Prevent possible loops */
|
|
if (tile == start_tile && trackdir == start_trackdir) break;
|
|
} else {
|
|
if (tile == end_tile) break;
|
|
|
|
tile += ToTileIndexDiff(_trackdelta[trackdir]);
|
|
signal_ctr++;
|
|
|
|
/* toggle railbit for the non-diagonal tracks (|, -- tracks) */
|
|
if (IsDiagonalTrackdir(trackdir)) {
|
|
signal_ctr++;
|
|
} else {
|
|
ToggleBit(trackdir, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
return error ? CMD_ERROR : total_cost;
|
|
}
|
|
|
|
/** Build signals on a stretch of track.
|
|
* Stub for the unified signal builder/remover
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0- 2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 3) - 1 = override signal/semaphore, or pre/exit/combo signal (CTRL-toggle)
|
|
* - p2 = (bit 4) - 0 = signals, 1 = semaphores
|
|
* - p2 = (bit 5) - 0 = build, 1 = remove signals
|
|
* - p2 = (bit 6) - 0 = selected stretch, 1 = auto fill
|
|
* - p2 = (bit 7- 9) - default signal type
|
|
* - p2 = (bit 24-31) - user defined signals_density
|
|
* @see CmdSignalTrackHelper
|
|
*/
|
|
CommandCost CmdBuildSignalTrack(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
return CmdSignalTrackHelper(tile, flags, p1, p2,text);
|
|
}
|
|
|
|
/** Remove signals
|
|
* @param tile coordinates where signal is being deleted from
|
|
* @param flags operation to perform
|
|
* @param p1 various bitstuffed elements, only track information is used
|
|
* - (bit 0- 2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - (bit 3) - override signal/semaphore, or pre/exit/combo signal (CTRL-toggle)
|
|
* - (bit 4) - 0 = signals, 1 = semaphores
|
|
* @param p2 unused
|
|
*/
|
|
CommandCost CmdRemoveSingleSignal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
Track track = (Track)GB(p1, 0, 3);
|
|
|
|
if (!ValParamTrackOrientation(track) ||
|
|
!IsPlainRailTile(tile) ||
|
|
!HasTrack(tile, track) ||
|
|
!EnsureNoTrainOnTrack(tile, track) ||
|
|
!HasSignalOnTrack(tile, track)) {
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
/* Only water can remove signals from anyone */
|
|
if (_current_company != OWNER_WATER && !CheckTileOwnership(tile)) return CMD_ERROR;
|
|
|
|
/* Do it? */
|
|
if (flags & DC_EXEC) {
|
|
Train *v = NULL;
|
|
if (HasReservedTracks(tile, TrackToTrackBits(track))) {
|
|
v = GetTrainForReservation(tile, track);
|
|
}
|
|
SetPresentSignals(tile, GetPresentSignals(tile) & ~SignalOnTrack(track));
|
|
|
|
/* removed last signal from tile? */
|
|
if (GetPresentSignals(tile) == 0) {
|
|
SetSignalStates(tile, 0);
|
|
SetHasSignals(tile, false);
|
|
SetSignalVariant(tile, INVALID_TRACK, SIG_ELECTRIC); // remove any possible semaphores
|
|
}
|
|
|
|
AddTrackToSignalBuffer(tile, track, GetTileOwner(tile));
|
|
YapfNotifyTrackLayoutChange(tile, track);
|
|
if (v != NULL) TryPathReserve(v, false);
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
|
|
return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_signals);
|
|
}
|
|
|
|
/** Remove signals on a stretch of track.
|
|
* Stub for the unified signal builder/remover
|
|
* @param tile start tile of drag
|
|
* @param flags operation to perform
|
|
* @param p1 end tile of drag
|
|
* @param p2 various bitstuffed elements
|
|
* - p2 = (bit 0- 2) - track-orientation, valid values: 0-5 (Track enum)
|
|
* - p2 = (bit 3) - 1 = override signal/semaphore, or pre/exit/combo signal (CTRL-toggle)
|
|
* - p2 = (bit 4) - 0 = signals, 1 = semaphores
|
|
* - p2 = (bit 5) - 0 = build, 1 = remove signals
|
|
* - p2 = (bit 6) - 0 = selected stretch, 1 = auto fill
|
|
* - p2 = (bit 7- 9) - default signal type
|
|
* - p2 = (bit 24-31) - user defined signals_density
|
|
* @see CmdSignalTrackHelper
|
|
*/
|
|
CommandCost CmdRemoveSignalTrack(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
return CmdSignalTrackHelper(tile, flags, p1, SetBit(p2, 5), text); // bit 5 is remove bit
|
|
}
|
|
|
|
/** Update power of train under which is the railtype being converted */
|
|
Vehicle *UpdateTrainPowerProc(Vehicle *v, void *data)
|
|
{
|
|
/* Similiar checks as in TrainPowerChanged() */
|
|
|
|
if (v->type == VEH_TRAIN && !IsArticulatedPart(v)) {
|
|
const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
|
|
if (GetVehicleProperty(v, 0x0B, rvi->power) != 0) TrainPowerChanged(Train::From(v)->First());
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/** Convert one rail type to the other. You can convert normal rail to
|
|
* monorail/maglev easily or vice-versa.
|
|
* @param tile end tile of rail conversion drag
|
|
* @param flags operation to perform
|
|
* @param p1 start tile of drag
|
|
* @param p2 new railtype to convert to
|
|
*/
|
|
CommandCost CmdConvertRail(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
|
|
{
|
|
CommandCost cost(EXPENSES_CONSTRUCTION);
|
|
RailType totype = (RailType)p2;
|
|
|
|
if (!ValParamRailtype(totype)) return CMD_ERROR;
|
|
if (p1 >= MapSize()) return CMD_ERROR;
|
|
|
|
uint ex = TileX(tile);
|
|
uint ey = TileY(tile);
|
|
uint sx = TileX(p1);
|
|
uint sy = TileY(p1);
|
|
|
|
/* make sure sx,sy are smaller than ex,ey */
|
|
if (ex < sx) Swap(ex, sx);
|
|
if (ey < sy) Swap(ey, sy);
|
|
|
|
_error_message = STR_ERROR_NO_SUITABLE_RAILROAD_TRACK; // by default, there is no track to convert
|
|
|
|
for (uint x = sx; x <= ex; ++x) {
|
|
for (uint y = sy; y <= ey; ++y) {
|
|
TileIndex tile = TileXY(x, y);
|
|
TileType tt = GetTileType(tile);
|
|
|
|
/* Check if there is any track on tile */
|
|
switch (tt) {
|
|
case MP_RAILWAY:
|
|
break;
|
|
case MP_STATION:
|
|
if (!IsRailwayStation(tile)) continue;
|
|
break;
|
|
case MP_ROAD:
|
|
if (!IsLevelCrossing(tile)) continue;
|
|
break;
|
|
case MP_TUNNELBRIDGE:
|
|
if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) continue;
|
|
break;
|
|
default: continue;
|
|
}
|
|
|
|
/* Original railtype we are converting from */
|
|
RailType type = GetRailType(tile);
|
|
|
|
/* Converting to the same type or converting 'hidden' elrail -> rail */
|
|
if (type == totype || (_settings_game.vehicle.disable_elrails && totype == RAILTYPE_RAIL && type == RAILTYPE_ELECTRIC)) continue;
|
|
|
|
/* Trying to convert other's rail */
|
|
if (!CheckTileOwnership(tile)) continue;
|
|
|
|
SmallVector<Train *, 2> vehicles_affected;
|
|
|
|
/* Vehicle on the tile when not converting Rail <-> ElRail
|
|
* Tunnels and bridges have special check later */
|
|
if (tt != MP_TUNNELBRIDGE) {
|
|
if (!IsCompatibleRail(type, totype) && !EnsureNoVehicleOnGround(tile)) continue;
|
|
if (flags & DC_EXEC) { // we can safely convert, too
|
|
TrackBits reserved = GetReservedTrackbits(tile);
|
|
Track track;
|
|
while ((track = RemoveFirstTrack(&reserved)) != INVALID_TRACK) {
|
|
Train *v = GetTrainForReservation(tile, track);
|
|
if (v != NULL && !HasPowerOnRail(v->railtype, totype)) {
|
|
/* No power on new rail type, reroute. */
|
|
FreeTrainTrackReservation(v);
|
|
*vehicles_affected.Append() = v;
|
|
}
|
|
}
|
|
|
|
SetRailType(tile, totype);
|
|
MarkTileDirtyByTile(tile);
|
|
/* update power of train engines on this tile */
|
|
FindVehicleOnPos(tile, NULL, &UpdateTrainPowerProc);
|
|
}
|
|
}
|
|
|
|
switch (tt) {
|
|
case MP_RAILWAY:
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TILE_WAYPOINT:
|
|
if (flags & DC_EXEC) {
|
|
/* notify YAPF about the track layout change */
|
|
YapfNotifyTrackLayoutChange(tile, GetRailWaypointTrack(tile));
|
|
}
|
|
cost.AddCost(RailConvertCost(type, totype));
|
|
break;
|
|
|
|
case RAIL_TILE_DEPOT:
|
|
if (flags & DC_EXEC) {
|
|
/* notify YAPF about the track layout change */
|
|
YapfNotifyTrackLayoutChange(tile, GetRailDepotTrack(tile));
|
|
|
|
/* Update build vehicle window related to this depot */
|
|
InvalidateWindowData(WC_VEHICLE_DEPOT, tile);
|
|
InvalidateWindowData(WC_BUILD_VEHICLE, tile);
|
|
}
|
|
cost.AddCost(RailConvertCost(type, totype));
|
|
break;
|
|
|
|
default: // RAIL_TILE_NORMAL, RAIL_TILE_SIGNALS
|
|
if (flags & DC_EXEC) {
|
|
/* notify YAPF about the track layout change */
|
|
TrackBits tracks = GetTrackBits(tile);
|
|
while (tracks != TRACK_BIT_NONE) {
|
|
YapfNotifyTrackLayoutChange(tile, RemoveFirstTrack(&tracks));
|
|
}
|
|
}
|
|
cost.AddCost(RailConvertCost(type, totype) * CountBits(GetTrackBits(tile)));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case MP_TUNNELBRIDGE: {
|
|
TileIndex endtile = GetOtherTunnelBridgeEnd(tile);
|
|
|
|
/* If both ends of tunnel/bridge are in the range, do not try to convert twice -
|
|
* it would cause assert because of different test and exec runs */
|
|
if (endtile < tile && TileX(endtile) >= sx && TileX(endtile) <= ex &&
|
|
TileY(endtile) >= sy && TileY(endtile) <= ey) continue;
|
|
|
|
/* When not coverting rail <-> el. rail, any vehicle cannot be in tunnel/bridge */
|
|
if (!IsCompatibleRail(GetRailType(tile), totype) &&
|
|
HasVehicleOnTunnelBridge(tile, endtile)) continue;
|
|
|
|
if (flags & DC_EXEC) {
|
|
Track track = DiagDirToDiagTrack(GetTunnelBridgeDirection(tile));
|
|
if (GetTunnelBridgeReservation(tile)) {
|
|
Train *v = GetTrainForReservation(tile, track);
|
|
if (v != NULL && !HasPowerOnRail(v->railtype, totype)) {
|
|
/* No power on new rail type, reroute. */
|
|
FreeTrainTrackReservation(v);
|
|
*vehicles_affected.Append() = v;
|
|
}
|
|
}
|
|
SetRailType(tile, totype);
|
|
SetRailType(endtile, totype);
|
|
|
|
FindVehicleOnPos(tile, NULL, &UpdateTrainPowerProc);
|
|
FindVehicleOnPos(endtile, NULL, &UpdateTrainPowerProc);
|
|
|
|
YapfNotifyTrackLayoutChange(tile, track);
|
|
YapfNotifyTrackLayoutChange(endtile, track);
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
MarkTileDirtyByTile(endtile);
|
|
|
|
if (IsBridge(tile)) {
|
|
TileIndexDiff delta = TileOffsByDiagDir(GetTunnelBridgeDirection(tile));
|
|
TileIndex t = tile + delta;
|
|
for (; t != endtile; t += delta) MarkTileDirtyByTile(t); // TODO encapsulate this into a function
|
|
}
|
|
}
|
|
|
|
cost.AddCost((GetTunnelBridgeLength(tile, endtile) + 2) * RailConvertCost(type, totype));
|
|
} break;
|
|
|
|
default: // MP_STATION, MP_ROAD
|
|
if (flags & DC_EXEC) {
|
|
Track track = ((tt == MP_STATION) ? GetRailStationTrack(tile) : GetCrossingRailTrack(tile));
|
|
YapfNotifyTrackLayoutChange(tile, track);
|
|
}
|
|
|
|
cost.AddCost(RailConvertCost(type, totype));
|
|
break;
|
|
}
|
|
|
|
for (uint i = 0; i < vehicles_affected.Length(); ++i) {
|
|
TryPathReserve(vehicles_affected[i], true);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (cost.GetCost() == 0) ? CMD_ERROR : cost;
|
|
}
|
|
|
|
static CommandCost RemoveTrainDepot(TileIndex tile, DoCommandFlag flags)
|
|
{
|
|
if (!CheckTileOwnership(tile) && _current_company != OWNER_WATER)
|
|
return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicleOnGround(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
/* read variables before the depot is removed */
|
|
DiagDirection dir = GetRailDepotDirection(tile);
|
|
Owner owner = GetTileOwner(tile);
|
|
Train *v = NULL;
|
|
|
|
if (GetDepotWaypointReservation(tile)) {
|
|
v = GetTrainForReservation(tile, DiagDirToDiagTrack(dir));
|
|
if (v != NULL) FreeTrainTrackReservation(v);
|
|
}
|
|
|
|
DoClearSquare(tile);
|
|
delete Depot::GetByTile(tile);
|
|
AddSideToSignalBuffer(tile, dir, owner);
|
|
YapfNotifyTrackLayoutChange(tile, DiagDirToDiagTrack(dir));
|
|
if (v != NULL) TryPathReserve(v, true);
|
|
}
|
|
|
|
return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_train_depot);
|
|
}
|
|
|
|
static CommandCost ClearTile_Track(TileIndex tile, DoCommandFlag flags)
|
|
{
|
|
CommandCost cost(EXPENSES_CONSTRUCTION);
|
|
CommandCost ret;
|
|
|
|
if (flags & DC_AUTO) {
|
|
if (!IsTileOwner(tile, _current_company)) {
|
|
return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
|
|
}
|
|
|
|
if (IsPlainRail(tile)) {
|
|
return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
|
|
} else {
|
|
return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
|
|
}
|
|
}
|
|
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TILE_SIGNALS:
|
|
case RAIL_TILE_NORMAL: {
|
|
Slope tileh = GetTileSlope(tile, NULL);
|
|
/* Is there flat water on the lower halftile, that gets cleared expensively? */
|
|
bool water_ground = (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh));
|
|
|
|
TrackBits tracks = GetTrackBits(tile);
|
|
while (tracks != TRACK_BIT_NONE) {
|
|
Track track = RemoveFirstTrack(&tracks);
|
|
ret = DoCommand(tile, 0, track, flags, CMD_REMOVE_SINGLE_RAIL);
|
|
if (CmdFailed(ret)) return CMD_ERROR;
|
|
cost.AddCost(ret);
|
|
}
|
|
|
|
/* when bankrupting, don't make water dirty, there could be a ship on lower halftile */
|
|
if (water_ground && !(flags & DC_BANKRUPT)) {
|
|
if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
|
|
|
|
/* The track was removed, and left a coast tile. Now also clear the water. */
|
|
if (flags & DC_EXEC) DoClearSquare(tile);
|
|
cost.AddCost(_price.clear_water);
|
|
}
|
|
|
|
return cost;
|
|
}
|
|
|
|
case RAIL_TILE_DEPOT:
|
|
return RemoveTrainDepot(tile, flags);
|
|
|
|
case RAIL_TILE_WAYPOINT:
|
|
return RemoveTrainWaypoint(tile, flags, false);
|
|
|
|
default:
|
|
return CMD_ERROR;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get surface height in point (x,y)
|
|
* On tiles with halftile foundations move (x,y) to a safe point wrt. track
|
|
*/
|
|
static uint GetSaveSlopeZ(uint x, uint y, Track track)
|
|
{
|
|
switch (track) {
|
|
case TRACK_UPPER: x &= ~0xF; y &= ~0xF; break;
|
|
case TRACK_LOWER: x |= 0xF; y |= 0xF; break;
|
|
case TRACK_LEFT: x |= 0xF; y &= ~0xF; break;
|
|
case TRACK_RIGHT: x &= ~0xF; y |= 0xF; break;
|
|
default: break;
|
|
}
|
|
return GetSlopeZ(x, y);
|
|
}
|
|
|
|
static void DrawSingleSignal(TileIndex tile, Track track, byte condition, uint image, uint pos)
|
|
{
|
|
bool side = (_settings_game.vehicle.road_side != 0) && _settings_game.construction.signal_side;
|
|
static const Point SignalPositions[2][12] = {
|
|
{ // Signals on the left side
|
|
/* LEFT LEFT RIGHT RIGHT UPPER UPPER */
|
|
{ 8, 5}, {14, 1}, { 1, 14}, { 9, 11}, { 1, 0}, { 3, 10},
|
|
/* LOWER LOWER X X Y Y */
|
|
{11, 4}, {14, 14}, {11, 3}, { 4, 13}, { 3, 4}, {11, 13}
|
|
}, { // Signals on the right side
|
|
/* LEFT LEFT RIGHT RIGHT UPPER UPPER */
|
|
{14, 1}, {12, 10}, { 4, 6}, { 1, 14}, {10, 4}, { 0, 1},
|
|
/* LOWER LOWER X X Y Y */
|
|
{14, 14}, { 5, 12}, {11, 13}, { 4, 3}, {13, 4}, { 3, 11}
|
|
}
|
|
};
|
|
|
|
uint x = TileX(tile) * TILE_SIZE + SignalPositions[side][pos].x;
|
|
uint y = TileY(tile) * TILE_SIZE + SignalPositions[side][pos].y;
|
|
|
|
SpriteID sprite;
|
|
|
|
SignalType type = GetSignalType(tile, track);
|
|
SignalVariant variant = GetSignalVariant(tile, track);
|
|
|
|
if (type == SIGTYPE_NORMAL && variant == SIG_ELECTRIC) {
|
|
/* Normal electric signals are picked from original sprites. */
|
|
sprite = SPR_ORIGINAL_SIGNALS_BASE + image + condition;
|
|
} else {
|
|
/* All other signals are picked from add on sprites. */
|
|
sprite = SPR_SIGNALS_BASE + (type - 1) * 16 + variant * 64 + image + condition + (type > SIGTYPE_LAST_NOPBS ? 64 : 0);
|
|
}
|
|
|
|
AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, GetSaveSlopeZ(x, y, track));
|
|
}
|
|
|
|
static uint32 _drawtile_track_palette;
|
|
|
|
|
|
static void DrawTrackFence_NW(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
RailFenceOffset rfo = RFO_FLAT_X;
|
|
if (ti->tileh != SLOPE_FLAT) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SW : RFO_SLOPE_NE;
|
|
AddSortableSpriteToDraw(base_image + rfo, _drawtile_track_palette,
|
|
ti->x, ti->y + 1, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SE(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
RailFenceOffset rfo = RFO_FLAT_X;
|
|
if (ti->tileh != SLOPE_FLAT) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SW : RFO_SLOPE_NE;
|
|
AddSortableSpriteToDraw(base_image + rfo, _drawtile_track_palette,
|
|
ti->x, ti->y + TILE_SIZE - 1, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NW_SE(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
DrawTrackFence_NW(ti, base_image);
|
|
DrawTrackFence_SE(ti, base_image);
|
|
}
|
|
|
|
static void DrawTrackFence_NE(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
RailFenceOffset rfo = RFO_FLAT_Y;
|
|
if (ti->tileh != SLOPE_FLAT) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SE : RFO_SLOPE_NW;
|
|
AddSortableSpriteToDraw(base_image + rfo, _drawtile_track_palette,
|
|
ti->x + 1, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SW(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
RailFenceOffset rfo = RFO_FLAT_Y;
|
|
if (ti->tileh != SLOPE_FLAT) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SE : RFO_SLOPE_NW;
|
|
AddSortableSpriteToDraw(base_image + rfo, _drawtile_track_palette,
|
|
ti->x + TILE_SIZE - 1, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NE_SW(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
DrawTrackFence_NE(ti, base_image);
|
|
DrawTrackFence_SW(ti, base_image);
|
|
}
|
|
|
|
/**
|
|
* Draw fence at eastern side of track.
|
|
*/
|
|
static void DrawTrackFence_NS_1(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
uint z = ti->z + GetSlopeZInCorner(RemoveHalftileSlope(ti->tileh), CORNER_W);
|
|
AddSortableSpriteToDraw(base_image + RFO_FLAT_VERT, _drawtile_track_palette,
|
|
ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, 4, z);
|
|
}
|
|
|
|
/**
|
|
* Draw fence at western side of track.
|
|
*/
|
|
static void DrawTrackFence_NS_2(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
uint z = ti->z + GetSlopeZInCorner(RemoveHalftileSlope(ti->tileh), CORNER_E);
|
|
AddSortableSpriteToDraw(base_image + RFO_FLAT_VERT, _drawtile_track_palette,
|
|
ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, 4, z);
|
|
}
|
|
|
|
/**
|
|
* Draw fence at southern side of track.
|
|
*/
|
|
static void DrawTrackFence_WE_1(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
uint z = ti->z + GetSlopeZInCorner(RemoveHalftileSlope(ti->tileh), CORNER_N);
|
|
AddSortableSpriteToDraw(base_image + RFO_FLAT_HORZ, _drawtile_track_palette,
|
|
ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, 4, z);
|
|
}
|
|
|
|
/**
|
|
* Draw fence at northern side of track.
|
|
*/
|
|
static void DrawTrackFence_WE_2(const TileInfo *ti, SpriteID base_image)
|
|
{
|
|
uint z = ti->z + GetSlopeZInCorner(RemoveHalftileSlope(ti->tileh), CORNER_S);
|
|
AddSortableSpriteToDraw(base_image + RFO_FLAT_HORZ, _drawtile_track_palette,
|
|
ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, 4, z);
|
|
}
|
|
|
|
|
|
static void DrawTrackDetails(const TileInfo *ti)
|
|
{
|
|
/* Base sprite for track fences. */
|
|
SpriteID base_image = SPR_TRACK_FENCE_FLAT_X;
|
|
|
|
switch (GetRailGroundType(ti->tile)) {
|
|
case RAIL_GROUND_FENCE_NW: DrawTrackFence_NW(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_SE: DrawTrackFence_SE(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_SENW: DrawTrackFence_NW_SE(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_NE: DrawTrackFence_NE(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_SW: DrawTrackFence_SW(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_NESW: DrawTrackFence_NE_SW(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_VERT1: DrawTrackFence_NS_1(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_VERT2: DrawTrackFence_NS_2(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_HORIZ1: DrawTrackFence_WE_1(ti, base_image); break;
|
|
case RAIL_GROUND_FENCE_HORIZ2: DrawTrackFence_WE_2(ti, base_image); break;
|
|
case RAIL_GROUND_WATER: {
|
|
Corner track_corner;
|
|
if (IsHalftileSlope(ti->tileh)) {
|
|
/* Steep slope or one-corner-raised slope with halftile foundation */
|
|
track_corner = GetHalftileSlopeCorner(ti->tileh);
|
|
} else {
|
|
/* Three-corner-raised slope */
|
|
track_corner = OppositeCorner(GetHighestSlopeCorner(ComplementSlope(ti->tileh)));
|
|
}
|
|
switch (track_corner) {
|
|
case CORNER_W: DrawTrackFence_NS_1(ti, base_image); break;
|
|
case CORNER_S: DrawTrackFence_WE_2(ti, base_image); break;
|
|
case CORNER_E: DrawTrackFence_NS_2(ti, base_image); break;
|
|
case CORNER_N: DrawTrackFence_WE_1(ti, base_image); break;
|
|
default: NOT_REACHED();
|
|
}
|
|
break;
|
|
}
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Draw ground sprite and track bits
|
|
* @param ti TileInfo
|
|
* @param track TrackBits to draw
|
|
*/
|
|
static void DrawTrackBits(TileInfo *ti, TrackBits track)
|
|
{
|
|
/* SubSprite for drawing the track halftile of 'three-corners-raised'-sloped rail sprites. */
|
|
static const int INF = 1000; // big number compared to tilesprite size
|
|
static const SubSprite _halftile_sub_sprite[4] = {
|
|
{ -INF , -INF , 32 - 33, INF }, // CORNER_W, clip 33 pixels from right
|
|
{ -INF , 0 + 7, INF , INF }, // CORNER_S, clip 7 pixels from top
|
|
{ -31 + 33, -INF , INF , INF }, // CORNER_E, clip 33 pixels from left
|
|
{ -INF , -INF , INF , 30 - 23 } // CORNER_N, clip 23 pixels from bottom
|
|
};
|
|
|
|
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
|
|
RailGroundType rgt = GetRailGroundType(ti->tile);
|
|
Foundation f = GetRailFoundation(ti->tileh, track);
|
|
Corner halftile_corner = CORNER_INVALID;
|
|
|
|
if (IsNonContinuousFoundation(f)) {
|
|
/* Save halftile corner */
|
|
halftile_corner = (f == FOUNDATION_STEEP_BOTH ? GetHighestSlopeCorner(ti->tileh) : GetHalftileFoundationCorner(f));
|
|
/* Draw lower part first */
|
|
track &= ~CornerToTrackBits(halftile_corner);
|
|
f = (f == FOUNDATION_STEEP_BOTH ? FOUNDATION_STEEP_LOWER : FOUNDATION_NONE);
|
|
}
|
|
|
|
DrawFoundation(ti, f);
|
|
/* DrawFoundation modifies ti */
|
|
|
|
SpriteID image;
|
|
SpriteID pal = PAL_NONE;
|
|
const SubSprite *sub = NULL;
|
|
bool junction = false;
|
|
|
|
/* Select the sprite to use. */
|
|
if (track == 0) {
|
|
/* Clear ground (only track on halftile foundation) */
|
|
if (rgt == RAIL_GROUND_WATER) {
|
|
if (IsSteepSlope(ti->tileh)) {
|
|
DrawShoreTile(ti->tileh);
|
|
image = 0;
|
|
} else {
|
|
image = SPR_FLAT_WATER_TILE;
|
|
}
|
|
} else {
|
|
switch (rgt) {
|
|
case RAIL_GROUND_BARREN: image = SPR_FLAT_BARE_LAND; break;
|
|
case RAIL_GROUND_ICE_DESERT: image = SPR_FLAT_SNOWY_TILE; break;
|
|
default: image = SPR_FLAT_GRASS_TILE; break;
|
|
}
|
|
image += _tileh_to_sprite[ti->tileh];
|
|
}
|
|
} else {
|
|
if (ti->tileh != SLOPE_FLAT) {
|
|
/* track on non-flat ground */
|
|
image = _track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.track_y;
|
|
} else {
|
|
/* track on flat ground */
|
|
(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);
|
|
}
|
|
|
|
switch (rgt) {
|
|
case RAIL_GROUND_BARREN: pal = PALETTE_TO_BARE_LAND; break;
|
|
case RAIL_GROUND_ICE_DESERT: image += rti->snow_offset; break;
|
|
case RAIL_GROUND_WATER: {
|
|
/* three-corner-raised slope */
|
|
DrawShoreTile(ti->tileh);
|
|
Corner track_corner = OppositeCorner(GetHighestSlopeCorner(ComplementSlope(ti->tileh)));
|
|
sub = &(_halftile_sub_sprite[track_corner]);
|
|
break;
|
|
}
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
if (image != 0) DrawGroundSprite(image, pal, sub);
|
|
|
|
/* Draw track pieces individually for junction tiles */
|
|
if (junction) {
|
|
if (track & TRACK_BIT_X) DrawGroundSprite(rti->base_sprites.single_y, PAL_NONE);
|
|
if (track & TRACK_BIT_Y) DrawGroundSprite(rti->base_sprites.single_x, PAL_NONE);
|
|
if (track & TRACK_BIT_UPPER) DrawGroundSprite(rti->base_sprites.single_n, PAL_NONE);
|
|
if (track & TRACK_BIT_LOWER) DrawGroundSprite(rti->base_sprites.single_s, PAL_NONE);
|
|
if (track & TRACK_BIT_LEFT) DrawGroundSprite(rti->base_sprites.single_w, PAL_NONE);
|
|
if (track & TRACK_BIT_RIGHT) DrawGroundSprite(rti->base_sprites.single_e, PAL_NONE);
|
|
}
|
|
|
|
/* PBS debugging, draw reserved tracks darker */
|
|
if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation) {
|
|
/* Get reservation, but mask track on halftile slope */
|
|
TrackBits pbs = GetTrackReservation(ti->tile) & track;
|
|
if (pbs & TRACK_BIT_X) {
|
|
if (ti->tileh == SLOPE_FLAT || ti->tileh == SLOPE_ELEVATED) {
|
|
DrawGroundSprite(rti->base_sprites.single_y, PALETTE_CRASH);
|
|
} else {
|
|
DrawGroundSprite(_track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.single_sloped - 20, PALETTE_CRASH);
|
|
}
|
|
}
|
|
if (pbs & TRACK_BIT_Y) {
|
|
if (ti->tileh == SLOPE_FLAT || ti->tileh == SLOPE_ELEVATED) {
|
|
DrawGroundSprite(rti->base_sprites.single_x, PALETTE_CRASH);
|
|
} else {
|
|
DrawGroundSprite(_track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.single_sloped - 20, PALETTE_CRASH);
|
|
}
|
|
}
|
|
if (pbs & TRACK_BIT_UPPER) DrawGroundSprite(rti->base_sprites.single_n, PALETTE_CRASH, NULL, 0, ti->tileh & SLOPE_N ? -TILE_HEIGHT : 0);
|
|
if (pbs & TRACK_BIT_LOWER) DrawGroundSprite(rti->base_sprites.single_s, PALETTE_CRASH, NULL, 0, ti->tileh & SLOPE_S ? -TILE_HEIGHT : 0);
|
|
if (pbs & TRACK_BIT_LEFT) DrawGroundSprite(rti->base_sprites.single_w, PALETTE_CRASH, NULL, 0, ti->tileh & SLOPE_W ? -TILE_HEIGHT : 0);
|
|
if (pbs & TRACK_BIT_RIGHT) DrawGroundSprite(rti->base_sprites.single_e, PALETTE_CRASH, NULL, 0, ti->tileh & SLOPE_E ? -TILE_HEIGHT : 0);
|
|
}
|
|
|
|
if (IsValidCorner(halftile_corner)) {
|
|
DrawFoundation(ti, HalftileFoundation(halftile_corner));
|
|
|
|
/* Draw higher halftile-overlay: Use the sloped sprites with three corners raised. They probably best fit the lightning. */
|
|
Slope fake_slope = SlopeWithThreeCornersRaised(OppositeCorner(halftile_corner));
|
|
image = _track_sloped_sprites[fake_slope - 1] + rti->base_sprites.track_y;
|
|
pal = PAL_NONE;
|
|
switch (rgt) {
|
|
case RAIL_GROUND_BARREN: pal = PALETTE_TO_BARE_LAND; break;
|
|
case RAIL_GROUND_ICE_DESERT:
|
|
case RAIL_GROUND_HALF_SNOW: image += rti->snow_offset; break; // higher part has snow in this case too
|
|
default: break;
|
|
}
|
|
DrawGroundSprite(image, pal, &(_halftile_sub_sprite[halftile_corner]));
|
|
|
|
if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasReservedTracks(ti->tile, CornerToTrackBits(halftile_corner))) {
|
|
static const byte _corner_to_track_sprite[] = {3, 1, 2, 0};
|
|
DrawGroundSprite(_corner_to_track_sprite[halftile_corner] + rti->base_sprites.single_n, PALETTE_CRASH, NULL, 0, -TILE_HEIGHT);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Enums holding the offsets from base signal sprite,
|
|
* according to the side it is representing.
|
|
* The addtion of 2 per enum is necessary in order to "jump" over the
|
|
* green state sprite, all signal sprites being in pair,
|
|
* starting with the off-red state */
|
|
enum {
|
|
SIGNAL_TO_SOUTHWEST = 0,
|
|
SIGNAL_TO_NORTHEAST = 2,
|
|
SIGNAL_TO_SOUTHEAST = 4,
|
|
SIGNAL_TO_NORTHWEST = 6,
|
|
SIGNAL_TO_EAST = 8,
|
|
SIGNAL_TO_WEST = 10,
|
|
SIGNAL_TO_SOUTH = 12,
|
|
SIGNAL_TO_NORTH = 14,
|
|
};
|
|
|
|
static void DrawSignals(TileIndex tile, TrackBits rails)
|
|
{
|
|
#define MAYBE_DRAW_SIGNAL(x,y,z,t) if (IsSignalPresent(tile, x)) DrawSingleSignal(tile, t, GetSingleSignalState(tile, x), y, z)
|
|
|
|
if (!(rails & TRACK_BIT_Y)) {
|
|
if (!(rails & TRACK_BIT_X)) {
|
|
if (rails & TRACK_BIT_LEFT) {
|
|
MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTH, 0, TRACK_LEFT);
|
|
MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTH, 1, TRACK_LEFT);
|
|
}
|
|
if (rails & TRACK_BIT_RIGHT) {
|
|
MAYBE_DRAW_SIGNAL(0, SIGNAL_TO_NORTH, 2, TRACK_RIGHT);
|
|
MAYBE_DRAW_SIGNAL(1, SIGNAL_TO_SOUTH, 3, TRACK_RIGHT);
|
|
}
|
|
if (rails & TRACK_BIT_UPPER) {
|
|
MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_WEST, 4, TRACK_UPPER);
|
|
MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_EAST, 5, TRACK_UPPER);
|
|
}
|
|
if (rails & TRACK_BIT_LOWER) {
|
|
MAYBE_DRAW_SIGNAL(1, SIGNAL_TO_WEST, 6, TRACK_LOWER);
|
|
MAYBE_DRAW_SIGNAL(0, SIGNAL_TO_EAST, 7, TRACK_LOWER);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTHWEST, 8, TRACK_X);
|
|
MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTHEAST, 9, TRACK_X);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTHEAST, 10, TRACK_Y);
|
|
MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTHWEST, 11, TRACK_Y);
|
|
}
|
|
}
|
|
|
|
static void DrawTile_Track(TileInfo *ti)
|
|
{
|
|
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
|
|
SpriteID image;
|
|
|
|
_drawtile_track_palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
|
|
|
|
if (IsPlainRail(ti->tile)) {
|
|
TrackBits rails = GetTrackBits(ti->tile);
|
|
|
|
DrawTrackBits(ti, rails);
|
|
|
|
if (HasBit(_display_opt, DO_FULL_DETAIL)) DrawTrackDetails(ti);
|
|
|
|
if (HasCatenaryDrawn(GetRailType(ti->tile))) DrawCatenary(ti);
|
|
|
|
if (HasSignals(ti->tile)) DrawSignals(ti->tile, rails);
|
|
} else {
|
|
/* draw depot/waypoint */
|
|
const DrawTileSprites *dts;
|
|
const DrawTileSeqStruct *dtss;
|
|
uint32 relocation;
|
|
SpriteID pal = PAL_NONE;
|
|
|
|
if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
|
|
|
|
if (IsRailDepot(ti->tile)) {
|
|
if (IsInvisibilitySet(TO_BUILDINGS)) {
|
|
/* Draw rail instead of depot */
|
|
dts = &_depot_invisible_gfx_table[GetRailDepotDirection(ti->tile)];
|
|
} else {
|
|
dts = &_depot_gfx_table[GetRailDepotDirection(ti->tile)];
|
|
}
|
|
|
|
relocation = rti->total_offset;
|
|
|
|
image = dts->ground.sprite;
|
|
if (image != SPR_FLAT_GRASS_TILE) image += rti->total_offset;
|
|
|
|
/* adjust ground tile for desert
|
|
* don't adjust for snow, because snow in depots looks weird */
|
|
if (IsSnowRailGround(ti->tile) && _settings_game.game_creation.landscape == LT_TROPIC) {
|
|
if (image != SPR_FLAT_GRASS_TILE) {
|
|
image += rti->snow_offset; // tile with tracks
|
|
} else {
|
|
image = SPR_FLAT_SNOWY_TILE; // flat ground
|
|
}
|
|
}
|
|
} else {
|
|
/* look for customization */
|
|
byte stat_id = GetWaypointByTile(ti->tile)->stat_id;
|
|
const StationSpec *statspec = GetCustomStationSpec(STAT_CLASS_WAYP, stat_id);
|
|
|
|
if (statspec != NULL) {
|
|
/* emulate station tile - open with building */
|
|
const Station *st = ComposeWaypointStation(ti->tile);
|
|
uint gfx = 2;
|
|
|
|
if (HasBit(statspec->callbackmask, CBM_STATION_SPRITE_LAYOUT)) {
|
|
uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0, 0, statspec, st, ti->tile);
|
|
if (callback != CALLBACK_FAILED) gfx = callback;
|
|
}
|
|
|
|
if (statspec->renderdata == NULL) {
|
|
dts = GetStationTileLayout(STATION_RAIL, gfx);
|
|
} else {
|
|
dts = &statspec->renderdata[(gfx < statspec->tiles ? gfx : 0) + GetWaypointAxis(ti->tile)];
|
|
}
|
|
|
|
if (dts != NULL && dts->seq != NULL) {
|
|
relocation = GetCustomStationRelocation(statspec, st, ti->tile);
|
|
|
|
image = dts->ground.sprite;
|
|
if (HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
|
|
image += GetCustomStationGroundRelocation(statspec, st, ti->tile);
|
|
image += rti->custom_ground_offset;
|
|
} else {
|
|
image += rti->total_offset;
|
|
}
|
|
|
|
pal = dts->ground.pal;
|
|
} else {
|
|
goto default_waypoint;
|
|
}
|
|
} else {
|
|
default_waypoint:
|
|
/* There is no custom layout, fall back to the default graphics */
|
|
dts = &_waypoint_gfx_table[GetWaypointAxis(ti->tile)];
|
|
relocation = 0;
|
|
image = dts->ground.sprite + rti->total_offset;
|
|
if (IsSnowRailGround(ti->tile)) image += rti->snow_offset;
|
|
}
|
|
}
|
|
|
|
DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, _drawtile_track_palette));
|
|
|
|
/* PBS debugging, draw reserved tracks darker */
|
|
if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && GetDepotWaypointReservation(ti->tile) &&
|
|
(!IsRailDepot(ti->tile) || GetRailDepotDirection(ti->tile) == DIAGDIR_SW || GetRailDepotDirection(ti->tile) == DIAGDIR_SE)) {
|
|
DrawGroundSprite(GetWaypointAxis(ti->tile) == AXIS_X ? rti->base_sprites.single_y : rti->base_sprites.single_x, PALETTE_CRASH);
|
|
}
|
|
|
|
if (HasCatenaryDrawn(GetRailType(ti->tile))) DrawCatenary(ti);
|
|
|
|
foreach_draw_tile_seq(dtss, dts->seq) {
|
|
SpriteID image = dtss->image.sprite;
|
|
SpriteID pal = dtss->image.pal;
|
|
|
|
/* Stop drawing sprite sequence once we meet a sprite that doesn't have to be opaque */
|
|
if (IsInvisibilitySet(TO_BUILDINGS) && !HasBit(image, SPRITE_MODIFIER_OPAQUE)) return;
|
|
|
|
/* Unlike stations, our default waypoint has no variation for
|
|
* different railtype, so don't use the railtype offset if
|
|
* no relocation is set */
|
|
if (HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
|
|
image += rti->total_offset;
|
|
} else {
|
|
image += relocation;
|
|
}
|
|
|
|
pal = SpriteLayoutPaletteTransform(image, pal, _drawtile_track_palette);
|
|
|
|
if ((byte)dtss->delta_z != 0x80) {
|
|
AddSortableSpriteToDraw(
|
|
image, pal,
|
|
ti->x + dtss->delta_x, ti->y + dtss->delta_y,
|
|
dtss->size_x, dtss->size_y,
|
|
dtss->size_z, ti->z + dtss->delta_z,
|
|
!HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(TO_BUILDINGS)
|
|
);
|
|
} else {
|
|
/* For stations and original spritelayouts delta_x and delta_y are signed */
|
|
AddChildSpriteScreen(image, pal, dtss->delta_x, dtss->delta_y, !HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(TO_BUILDINGS));
|
|
}
|
|
}
|
|
}
|
|
DrawBridgeMiddle(ti);
|
|
}
|
|
|
|
|
|
static void DrawTileSequence(int x, int y, SpriteID ground, const DrawTileSeqStruct *dtss, uint32 offset)
|
|
{
|
|
SpriteID palette = COMPANY_SPRITE_COLOUR(_local_company);
|
|
|
|
DrawSprite(ground, PAL_NONE, x, y);
|
|
for (; dtss->image.sprite != 0; dtss++) {
|
|
Point pt = RemapCoords(dtss->delta_x, dtss->delta_y, dtss->delta_z);
|
|
SpriteID image = dtss->image.sprite + offset;
|
|
|
|
DrawSprite(image, HasBit(image, PALETTE_MODIFIER_COLOUR) ? palette : PAL_NONE, x + pt.x, y + pt.y);
|
|
}
|
|
}
|
|
|
|
void DrawTrainDepotSprite(int x, int y, int dir, RailType railtype)
|
|
{
|
|
const DrawTileSprites *dts = &_depot_gfx_table[dir];
|
|
SpriteID image = dts->ground.sprite;
|
|
uint32 offset = GetRailTypeInfo(railtype)->total_offset;
|
|
|
|
if (image != SPR_FLAT_GRASS_TILE) image += offset;
|
|
DrawTileSequence(x + 33, y + 17, image, dts->seq, offset);
|
|
}
|
|
|
|
void DrawDefaultWaypointSprite(int x, int y, RailType railtype)
|
|
{
|
|
uint32 offset = GetRailTypeInfo(railtype)->total_offset;
|
|
const DrawTileSprites *dts = &_waypoint_gfx_table[AXIS_X];
|
|
|
|
DrawTileSequence(x, y, dts->ground.sprite + offset, dts->seq, 0);
|
|
}
|
|
|
|
static uint GetSlopeZ_Track(TileIndex tile, uint x, uint y)
|
|
{
|
|
uint z;
|
|
Slope tileh = GetTileSlope(tile, &z);
|
|
|
|
if (tileh == SLOPE_FLAT) return z;
|
|
if (IsPlainRail(tile)) {
|
|
z += ApplyFoundationToSlope(GetRailFoundation(tileh, GetTrackBits(tile)), &tileh);
|
|
return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
|
|
} else {
|
|
return z + TILE_HEIGHT;
|
|
}
|
|
}
|
|
|
|
static Foundation GetFoundation_Track(TileIndex tile, Slope tileh)
|
|
{
|
|
return IsPlainRail(tile) ? GetRailFoundation(tileh, GetTrackBits(tile)) : FlatteningFoundation(tileh);
|
|
}
|
|
|
|
static void TileLoop_Track(TileIndex tile)
|
|
{
|
|
RailGroundType old_ground = GetRailGroundType(tile);
|
|
RailGroundType new_ground;
|
|
|
|
if (old_ground == RAIL_GROUND_WATER) {
|
|
TileLoop_Water(tile);
|
|
return;
|
|
}
|
|
|
|
switch (_settings_game.game_creation.landscape) {
|
|
case LT_ARCTIC: {
|
|
uint z;
|
|
Slope slope = GetTileSlope(tile, &z);
|
|
bool half = false;
|
|
|
|
/* for non-flat track, use lower part of track
|
|
* in other cases, use the highest part with track */
|
|
if (IsPlainRail(tile)) {
|
|
TrackBits track = GetTrackBits(tile);
|
|
Foundation f = GetRailFoundation(slope, track);
|
|
|
|
switch (f) {
|
|
case FOUNDATION_NONE:
|
|
/* no foundation - is the track on the upper side of three corners raised tile? */
|
|
if (IsSlopeWithThreeCornersRaised(slope)) z += TILE_HEIGHT;
|
|
break;
|
|
|
|
case FOUNDATION_INCLINED_X:
|
|
case FOUNDATION_INCLINED_Y:
|
|
/* sloped track - is it on a steep slope? */
|
|
if (IsSteepSlope(slope)) z += TILE_HEIGHT;
|
|
break;
|
|
|
|
case FOUNDATION_STEEP_LOWER:
|
|
/* only lower part of steep slope */
|
|
z += TILE_HEIGHT;
|
|
break;
|
|
|
|
default:
|
|
/* if it is a steep slope, then there is a track on higher part */
|
|
if (IsSteepSlope(slope)) z += TILE_HEIGHT;
|
|
z += TILE_HEIGHT;
|
|
break;
|
|
}
|
|
|
|
half = IsInsideMM(f, FOUNDATION_STEEP_BOTH, FOUNDATION_HALFTILE_N + 1);
|
|
} else {
|
|
/* is the depot on a non-flat tile? */
|
|
if (slope != SLOPE_FLAT) z += TILE_HEIGHT;
|
|
}
|
|
|
|
/* 'z' is now the lowest part of the highest track bit -
|
|
* for sloped track, it is 'z' of lower part
|
|
* for two track bits, it is 'z' of higher track bit
|
|
* For non-continuous foundations (and STEEP_BOTH), 'half' is set */
|
|
if (z > GetSnowLine()) {
|
|
if (half && z - GetSnowLine() == TILE_HEIGHT) {
|
|
/* track on non-continuous foundation, lower part is not under snow */
|
|
new_ground = RAIL_GROUND_HALF_SNOW;
|
|
} else {
|
|
new_ground = RAIL_GROUND_ICE_DESERT;
|
|
}
|
|
goto set_ground;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case LT_TROPIC:
|
|
if (GetTropicZone(tile) == TROPICZONE_DESERT) {
|
|
new_ground = RAIL_GROUND_ICE_DESERT;
|
|
goto set_ground;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!IsPlainRail(tile)) return;
|
|
|
|
new_ground = RAIL_GROUND_GRASS;
|
|
|
|
if (old_ground != RAIL_GROUND_BARREN) { // 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: {
|
|
Owner 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);
|
|
TrackBits nrail = (IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
nrail == TRACK_BIT_UPPER ||
|
|
nrail == 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);
|
|
TrackBits nrail = (IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
nrail == TRACK_BIT_LOWER ||
|
|
nrail == 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);
|
|
TrackBits nrail = (IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
nrail == TRACK_BIT_UPPER ||
|
|
nrail == 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);
|
|
TrackBits nrail = (IsPlainRailTile(n) ? GetTrackBits(n) : TRACK_BIT_NONE);
|
|
|
|
if (!IsTileType(n, MP_RAILWAY) ||
|
|
!IsTileOwner(n, owner) ||
|
|
nrail == TRACK_BIT_LOWER ||
|
|
nrail == TRACK_BIT_LEFT) {
|
|
new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ?
|
|
RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
set_ground:
|
|
if (old_ground != new_ground) {
|
|
SetRailGroundType(tile, new_ground);
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
}
|
|
|
|
|
|
static TrackStatus GetTileTrackStatus_Track(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
|
|
{
|
|
/* Case of half tile slope with water. */
|
|
if (mode == TRANSPORT_WATER && IsPlainRail(tile) && GetRailGroundType(tile) == RAIL_GROUND_WATER) {
|
|
TrackBits tb = GetTrackBits(tile);
|
|
switch (tb) {
|
|
default: NOT_REACHED();
|
|
case TRACK_BIT_UPPER: tb = TRACK_BIT_LOWER; break;
|
|
case TRACK_BIT_LOWER: tb = TRACK_BIT_UPPER; break;
|
|
case TRACK_BIT_LEFT: tb = TRACK_BIT_RIGHT; break;
|
|
case TRACK_BIT_RIGHT: tb = TRACK_BIT_LEFT; break;
|
|
}
|
|
return CombineTrackStatus(TrackBitsToTrackdirBits(tb), TRACKDIR_BIT_NONE);
|
|
}
|
|
|
|
if (mode != TRANSPORT_RAIL) return 0;
|
|
|
|
TrackBits trackbits = TRACK_BIT_NONE;
|
|
TrackdirBits red_signals = TRACKDIR_BIT_NONE;
|
|
|
|
switch (GetRailTileType(tile)) {
|
|
default: NOT_REACHED();
|
|
case RAIL_TILE_NORMAL:
|
|
trackbits = GetTrackBits(tile);
|
|
break;
|
|
|
|
case RAIL_TILE_SIGNALS: {
|
|
trackbits = GetTrackBits(tile);
|
|
byte a = GetPresentSignals(tile);
|
|
uint b = GetSignalStates(tile);
|
|
|
|
b &= a;
|
|
|
|
/* When signals are not present (in neither direction),
|
|
* we pretend them to be green. Otherwise, it depends on
|
|
* the signal type. For signals that are only active from
|
|
* one side, we set the missing signals explicitely to
|
|
* `green'. Otherwise, they implicitely become `red'. */
|
|
if (!IsOnewaySignal(tile, TRACK_UPPER) || (a & SignalOnTrack(TRACK_UPPER)) == 0) b |= ~a & SignalOnTrack(TRACK_UPPER);
|
|
if (!IsOnewaySignal(tile, TRACK_LOWER) || (a & SignalOnTrack(TRACK_LOWER)) == 0) b |= ~a & SignalOnTrack(TRACK_LOWER);
|
|
|
|
if ((b & 0x8) == 0) red_signals |= (TRACKDIR_BIT_LEFT_N | TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_SE | TRACKDIR_BIT_UPPER_E);
|
|
if ((b & 0x4) == 0) red_signals |= (TRACKDIR_BIT_LEFT_S | TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_NW | TRACKDIR_BIT_UPPER_W);
|
|
if ((b & 0x2) == 0) red_signals |= (TRACKDIR_BIT_RIGHT_N | TRACKDIR_BIT_LOWER_E);
|
|
if ((b & 0x1) == 0) red_signals |= (TRACKDIR_BIT_RIGHT_S | TRACKDIR_BIT_LOWER_W);
|
|
|
|
break;
|
|
}
|
|
|
|
case RAIL_TILE_DEPOT: {
|
|
DiagDirection dir = GetRailDepotDirection(tile);
|
|
|
|
if (side != INVALID_DIAGDIR && side != dir) break;
|
|
|
|
trackbits = DiagDirToDiagTrackBits(dir);
|
|
break;
|
|
}
|
|
|
|
case RAIL_TILE_WAYPOINT:
|
|
trackbits = GetRailWaypointBits(tile);
|
|
break;
|
|
}
|
|
|
|
return CombineTrackStatus(TrackBitsToTrackdirBits(trackbits), red_signals);
|
|
}
|
|
|
|
static bool ClickTile_Track(TileIndex tile)
|
|
{
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TILE_DEPOT: ShowDepotWindow(tile, VEH_TRAIN); return true;
|
|
case RAIL_TILE_WAYPOINT: ShowWaypointWindow(GetWaypointByTile(tile)); return true;
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
static void GetTileDesc_Track(TileIndex tile, TileDesc *td)
|
|
{
|
|
td->owner[0] = GetTileOwner(tile);
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TILE_NORMAL:
|
|
td->str = STR_RAILROAD_TRACK;
|
|
break;
|
|
|
|
case RAIL_TILE_SIGNALS: {
|
|
const StringID signal_type[6][6] = {
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_SIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_PRESIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_NOENTRYSIGNALS
|
|
},
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_PRESIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRESIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_NOENTRYSIGNALS
|
|
},
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXITSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_NOENTRYSIGNALS
|
|
},
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBOSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBO_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBO_NOENTRYSIGNALS
|
|
},
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBO_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PBSSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PBS_NOENTRYSIGNALS
|
|
},
|
|
{
|
|
STR_RAILROAD_TRACK_WITH_NORMAL_NOENTRYSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PRE_NOENTRYSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_EXIT_NOENTRYSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_COMBO_NOENTRYSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_PBS_NOENTRYSIGNALS,
|
|
STR_RAILROAD_TRACK_WITH_NOENTRYSIGNALS
|
|
}
|
|
};
|
|
|
|
SignalType primary_signal;
|
|
SignalType secondary_signal;
|
|
if (HasSignalOnTrack(tile, TRACK_UPPER)) {
|
|
primary_signal = GetSignalType(tile, TRACK_UPPER);
|
|
secondary_signal = HasSignalOnTrack(tile, TRACK_LOWER) ? GetSignalType(tile, TRACK_LOWER) : primary_signal;
|
|
} else {
|
|
secondary_signal = primary_signal = GetSignalType(tile, TRACK_LOWER);
|
|
}
|
|
|
|
td->str = signal_type[secondary_signal][primary_signal];
|
|
break;
|
|
}
|
|
|
|
case RAIL_TILE_DEPOT:
|
|
td->str = STR_RAILROAD_TRAIN_DEPOT;
|
|
break;
|
|
|
|
case RAIL_TILE_WAYPOINT:
|
|
default:
|
|
td->str = STR_LANDINFO_WAYPOINT;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ChangeTileOwner_Track(TileIndex tile, Owner old_owner, Owner new_owner)
|
|
{
|
|
if (!IsTileOwner(tile, old_owner)) return;
|
|
|
|
if (new_owner != INVALID_OWNER) {
|
|
SetTileOwner(tile, new_owner);
|
|
} else {
|
|
DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, 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 signed char _deltacoord_leaveoffset[8] = {
|
|
-1, 0, 1, 0, /* x */
|
|
0, 1, 0, -1 /* y */
|
|
};
|
|
|
|
|
|
/** Compute number of ticks when next wagon will leave a depot.
|
|
* Negative means next wagon should have left depot n ticks before.
|
|
* @param v vehicle outside (leaving) the depot
|
|
* @return number of ticks when the next wagon will leave
|
|
*/
|
|
int TicksToLeaveDepot(const Train *v)
|
|
{
|
|
DiagDirection dir = GetRailDepotDirection(v->tile);
|
|
int length = v->tcache.cached_veh_length;
|
|
|
|
switch (dir) {
|
|
case DIAGDIR_NE: return ((int)(v->x_pos & 0x0F) - ((_fractcoords_enter[dir] & 0x0F) - (length + 1)));
|
|
case DIAGDIR_SE: return -((int)(v->y_pos & 0x0F) - ((_fractcoords_enter[dir] >> 4) + (length + 1)));
|
|
case DIAGDIR_SW: return -((int)(v->x_pos & 0x0F) - ((_fractcoords_enter[dir] & 0x0F) + (length + 1)));
|
|
default:
|
|
case DIAGDIR_NW: return ((int)(v->y_pos & 0x0F) - ((_fractcoords_enter[dir] >> 4) - (length + 1)));
|
|
}
|
|
|
|
return 0; // make compilers happy
|
|
}
|
|
|
|
/** Tile callback routine when vehicle enters tile
|
|
* @see vehicle_enter_tile_proc */
|
|
static VehicleEnterTileStatus VehicleEnter_Track(Vehicle *u, 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 (u->type != VEH_TRAIN || !IsRailDepotTile(tile)) return VETSB_CONTINUE;
|
|
|
|
Train *v = Train::From(u);
|
|
|
|
/* 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->tcache.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 VETSB_CANNOT_ENTER;
|
|
} else if (_fractcoords_enter[dir] == fract_coord) {
|
|
if (DiagDirToDir(ReverseDiagDir(dir)) == v->direction) {
|
|
/* enter the depot */
|
|
v->track = TRACK_BIT_DEPOT,
|
|
v->vehstatus |= VS_HIDDEN; // hide it
|
|
v->direction = ReverseDir(v->direction);
|
|
if (v->Next() == NULL) VehicleEnterDepot(v);
|
|
v->tile = tile;
|
|
|
|
InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
|
|
return VETSB_ENTERED_WORMHOLE;
|
|
}
|
|
} 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->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
|
|
}
|
|
}
|
|
}
|
|
|
|
return VETSB_CONTINUE;
|
|
}
|
|
|
|
/**
|
|
* Tests if autoslope is allowed.
|
|
*
|
|
* @param tile The tile.
|
|
* @param flags Terraform command flags.
|
|
* @param z_old Old TileZ.
|
|
* @param tileh_old Old TileSlope.
|
|
* @param z_new New TileZ.
|
|
* @param tileh_new New TileSlope.
|
|
* @param rail_bits Trackbits.
|
|
*/
|
|
static CommandCost TestAutoslopeOnRailTile(TileIndex tile, uint flags, uint z_old, Slope tileh_old, uint z_new, Slope tileh_new, TrackBits rail_bits)
|
|
{
|
|
if (!_settings_game.construction.build_on_slopes || !AutoslopeEnabled()) return CMD_ERROR;
|
|
|
|
/* Is the slope-rail_bits combination valid in general? I.e. is it safe to call GetRailFoundation() ? */
|
|
if (CmdFailed(CheckRailSlope(tileh_new, rail_bits, TRACK_BIT_NONE, tile))) return CMD_ERROR;
|
|
|
|
/* Get the slopes on top of the foundations */
|
|
z_old += ApplyFoundationToSlope(GetRailFoundation(tileh_old, rail_bits), &tileh_old);
|
|
z_new += ApplyFoundationToSlope(GetRailFoundation(tileh_new, rail_bits), &tileh_new);
|
|
|
|
Corner track_corner;
|
|
switch (rail_bits) {
|
|
case TRACK_BIT_LEFT: track_corner = CORNER_W; break;
|
|
case TRACK_BIT_LOWER: track_corner = CORNER_S; break;
|
|
case TRACK_BIT_RIGHT: track_corner = CORNER_E; break;
|
|
case TRACK_BIT_UPPER: track_corner = CORNER_N; break;
|
|
|
|
/* Surface slope must not be changed */
|
|
default: return (((z_old != z_new) || (tileh_old != tileh_new)) ? CMD_ERROR : CommandCost(EXPENSES_CONSTRUCTION, _price.terraform));
|
|
}
|
|
|
|
/* The height of the track_corner must not be changed. The rest ensures GetRailFoundation() already. */
|
|
z_old += GetSlopeZInCorner(RemoveHalftileSlope(tileh_old), track_corner);
|
|
z_new += GetSlopeZInCorner(RemoveHalftileSlope(tileh_new), track_corner);
|
|
if (z_old != z_new) return CMD_ERROR;
|
|
|
|
CommandCost cost = CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
|
|
/* Make the ground dirty, if surface slope has changed */
|
|
if (tileh_old != tileh_new) {
|
|
/* If there is flat water on the lower halftile add the cost for clearing it */
|
|
if (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh_old)) cost.AddCost(_price.clear_water);
|
|
if ((flags & DC_EXEC) != 0) SetRailGroundType(tile, RAIL_GROUND_BARREN);
|
|
}
|
|
return cost;
|
|
}
|
|
|
|
static CommandCost TerraformTile_Track(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
|
|
{
|
|
uint z_old;
|
|
Slope tileh_old = GetTileSlope(tile, &z_old);
|
|
if (IsPlainRail(tile)) {
|
|
TrackBits rail_bits = GetTrackBits(tile);
|
|
/* Is there flat water on the lower halftile, that must be cleared expensively? */
|
|
bool was_water = (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh_old));
|
|
|
|
_error_message = STR_ERROR_MUST_REMOVE_RAILROAD_TRACK;
|
|
|
|
/* First test autoslope. However if it succeeds we still have to test the rest, because non-autoslope terraforming is cheaper. */
|
|
CommandCost autoslope_result = TestAutoslopeOnRailTile(tile, flags, z_old, tileh_old, z_new, tileh_new, rail_bits);
|
|
|
|
/* When there is only a single horizontal/vertical track, one corner can be terraformed. */
|
|
Corner allowed_corner;
|
|
switch (rail_bits) {
|
|
case TRACK_BIT_RIGHT: allowed_corner = CORNER_W; break;
|
|
case TRACK_BIT_UPPER: allowed_corner = CORNER_S; break;
|
|
case TRACK_BIT_LEFT: allowed_corner = CORNER_E; break;
|
|
case TRACK_BIT_LOWER: allowed_corner = CORNER_N; break;
|
|
default: return autoslope_result;
|
|
}
|
|
|
|
Foundation f_old = GetRailFoundation(tileh_old, rail_bits);
|
|
|
|
/* Do not allow terraforming if allowed_corner is part of anti-zig-zag foundations */
|
|
if (tileh_old != SLOPE_NS && tileh_old != SLOPE_EW && IsSpecialRailFoundation(f_old)) return autoslope_result;
|
|
|
|
/* Everything is valid, which only changes allowed_corner */
|
|
for (Corner corner = (Corner)0; corner < CORNER_END; corner = (Corner)(corner + 1)) {
|
|
if (allowed_corner == corner) continue;
|
|
if (z_old + GetSlopeZInCorner(tileh_old, corner) != z_new + GetSlopeZInCorner(tileh_new, corner)) return autoslope_result;
|
|
}
|
|
|
|
/* Make the ground dirty */
|
|
if ((flags & DC_EXEC) != 0) SetRailGroundType(tile, RAIL_GROUND_BARREN);
|
|
|
|
/* allow terraforming */
|
|
return CommandCost(EXPENSES_CONSTRUCTION, was_water ? _price.clear_water : (Money)0);
|
|
} else {
|
|
if (_settings_game.construction.build_on_slopes && AutoslopeEnabled()) {
|
|
switch (GetRailTileType(tile)) {
|
|
case RAIL_TILE_WAYPOINT: {
|
|
CommandCost cost = TestAutoslopeOnRailTile(tile, flags, z_old, tileh_old, z_new, tileh_new, GetRailWaypointBits(tile));
|
|
if (!CmdFailed(cost)) return cost; // allow autoslope
|
|
break;
|
|
}
|
|
|
|
case RAIL_TILE_DEPOT:
|
|
if (AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, GetRailDepotDirection(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
|
|
break;
|
|
|
|
default: NOT_REACHED();
|
|
}
|
|
}
|
|
}
|
|
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
|
|
}
|
|
|
|
|
|
extern const TileTypeProcs _tile_type_rail_procs = {
|
|
DrawTile_Track, // draw_tile_proc
|
|
GetSlopeZ_Track, // get_slope_z_proc
|
|
ClearTile_Track, // clear_tile_proc
|
|
NULL, // add_accepted_cargo_proc
|
|
GetTileDesc_Track, // get_tile_desc_proc
|
|
GetTileTrackStatus_Track, // get_tile_track_status_proc
|
|
ClickTile_Track, // click_tile_proc
|
|
NULL, // 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
|
|
GetFoundation_Track, // get_foundation_proc
|
|
TerraformTile_Track, // terraform_tile_proc
|
|
};
|