00001
00002
00003
00004
00005
00006
00007
00008
00009
00056 #include "stdafx.h"
00057 #include "station_map.h"
00058 #include "viewport_func.h"
00059 #include "landscape.h"
00060 #include "train.h"
00061 #include "rail_gui.h"
00062 #include "tunnelbridge_map.h"
00063 #include "tunnelbridge.h"
00064 #include "elrail_func.h"
00065 #include "engine_base.h"
00066 #include "company_base.h"
00067 #include "rail.h"
00068 #include "newgrf_railtype.h"
00069
00070 #include "table/sprites.h"
00071 #include "table/elrail_data.h"
00072
00073 static inline TLG GetTLG(TileIndex t)
00074 {
00075 return (TLG)((HasBit(TileX(t), 0) << 1) + HasBit(TileY(t), 0));
00076 }
00077
00084 static TrackBits GetRailTrackBitsUniversal(TileIndex t, byte *override)
00085 {
00086 switch (GetTileType(t)) {
00087 case MP_RAILWAY:
00088 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00089 switch (GetRailTileType(t)) {
00090 case RAIL_TILE_NORMAL: case RAIL_TILE_SIGNALS:
00091 return GetTrackBits(t);
00092 default:
00093 return TRACK_BIT_NONE;
00094 }
00095 break;
00096
00097 case MP_TUNNELBRIDGE:
00098 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00099 if (override != NULL && (IsTunnel(t) || GetTunnelBridgeLength(t, GetOtherBridgeEnd(t)) > 0)) {
00100 *override = 1 << GetTunnelBridgeDirection(t);
00101 }
00102 return DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t));
00103
00104 case MP_ROAD:
00105 if (!IsLevelCrossing(t)) return TRACK_BIT_NONE;
00106 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00107 return GetCrossingRailBits(t);
00108
00109 case MP_STATION:
00110 if (!HasStationRail(t)) return TRACK_BIT_NONE;
00111 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00112 if (!IsStationTileElectrifiable(t)) return TRACK_BIT_NONE;
00113 return TrackToTrackBits(GetRailStationTrack(t));
00114
00115 default:
00116 return TRACK_BIT_NONE;
00117 }
00118 }
00119
00123 static TrackBits MaskWireBits(TileIndex t, TrackBits tracks)
00124 {
00125 if (!IsPlainRailTile(t)) return tracks;
00126
00127 TrackdirBits neighbour_tdb = TRACKDIR_BIT_NONE;
00128 for (DiagDirection d = DIAGDIR_BEGIN; d < DIAGDIR_END; d++) {
00129
00130
00131
00132 RailType rt = GetTileRailType(TileAddByDiagDir(t, d));
00133 if (rt == INVALID_RAILTYPE || !HasCatenary(rt) || (TrackStatusToTrackBits(GetTileTrackStatus(TileAddByDiagDir(t, d), TRANSPORT_RAIL, 0)) & DiagdirReachesTracks(d)) == TRACK_BIT_NONE) {
00134 neighbour_tdb |= DiagdirReachesTrackdirs(ReverseDiagDir(d));
00135 }
00136 }
00137
00138
00139
00140
00141 TrackBits mask;
00142 if (tracks == TRACK_BIT_CROSS || !TracksOverlap(tracks)) {
00143
00144
00145 mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
00146
00147
00148 if (tracks != TRACK_BIT_CROSS && (mask & TRACK_BIT_MASK) == TRACK_BIT_MASK) mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
00149 } else {
00150
00151 mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
00152
00153 if ((tracks & mask) == TRACK_BIT_NONE) {
00154 if ((neighbour_tdb & TRACKDIR_BIT_X_NE) == 0 || (neighbour_tdb & TRACKDIR_BIT_X_SW) == 0) mask |= TRACK_BIT_X;
00155 if ((neighbour_tdb & TRACKDIR_BIT_Y_NW) == 0 || (neighbour_tdb & TRACKDIR_BIT_Y_SE) == 0) mask |= TRACK_BIT_Y;
00156
00157 if ((tracks & mask) == TRACK_BIT_NONE) mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
00158 }
00159 }
00160
00161
00162 return (tracks & mask) != TRACK_BIT_NONE ? tracks & mask : tracks;
00163 }
00164
00168 static inline SpriteID GetWireBase(TileIndex tile, TileContext context = TCX_NORMAL)
00169 {
00170 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
00171 SpriteID wires = GetCustomRailSprite(rti, tile, RTSG_WIRES, context);
00172 return wires == 0 ? SPR_WIRE_BASE : wires;
00173 }
00174
00178 static inline SpriteID GetPylonBase(TileIndex tile, TileContext context = TCX_NORMAL)
00179 {
00180 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
00181 SpriteID pylons = GetCustomRailSprite(rti, tile, RTSG_PYLONS, context);
00182 return pylons == 0 ? SPR_PYLON_BASE : pylons;
00183 }
00184
00189 static void AdjustTileh(TileIndex tile, Slope *tileh)
00190 {
00191 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00192 if (IsTunnel(tile)) {
00193 *tileh = SLOPE_STEEP;
00194 } else if (*tileh != SLOPE_FLAT) {
00195 *tileh = SLOPE_FLAT;
00196 } else {
00197 *tileh = InclinedSlope(GetTunnelBridgeDirection(tile));
00198 }
00199 }
00200 }
00201
00209 static byte GetPCPElevation(TileIndex tile, DiagDirection PCPpos)
00210 {
00211
00212
00213
00214
00215
00216
00217
00218
00219
00220
00221
00222
00223
00224
00225 byte z = GetSlopeZ(TileX(tile) * TILE_SIZE + min(x_pcp_offsets[PCPpos], TILE_SIZE - 1), TileY(tile) * TILE_SIZE + min(y_pcp_offsets[PCPpos], TILE_SIZE - 1));
00226 return (z + 2) & ~3;
00227 }
00228
00236 void DrawCatenaryOnTunnel(const TileInfo *ti)
00237 {
00238
00239 static const int _tunnel_wire_BB[4][4] = {
00240 { 0, 1, 16, 15 },
00241 { 1, 0, 15, 16 },
00242 { 0, 1, 16, 15 },
00243 { 1, 0, 15, 16 },
00244 };
00245
00246 DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
00247
00248 SpriteID wire_base = GetWireBase(ti->tile);
00249
00250 const SortableSpriteStruct *sss = &CatenarySpriteData_Tunnel[dir];
00251 const int *BB_data = _tunnel_wire_BB[dir];
00252 AddSortableSpriteToDraw(
00253 wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00254 BB_data[2] - sss->x_offset, BB_data[3] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset + 1,
00255 GetTileZ(ti->tile) + sss->z_offset,
00256 IsTransparencySet(TO_CATENARY),
00257 BB_data[0] - sss->x_offset, BB_data[1] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset
00258 );
00259 }
00260
00264 static void DrawCatenaryRailway(const TileInfo *ti)
00265 {
00266
00267
00268
00269 TrackBits trackconfig[TS_END];
00270 TrackBits wireconfig[TS_END];
00271 bool isflat[TS_END];
00272
00273 Slope tileh[TS_END] = { ti->tileh, SLOPE_FLAT };
00274
00275
00276
00277 Corner halftile_corner = CORNER_INVALID;
00278 if (IsHalftileSlope(tileh[TS_HOME])) {
00279 halftile_corner = GetHalftileSlopeCorner(tileh[TS_HOME]);
00280 tileh[TS_HOME] = SLOPE_FLAT;
00281 }
00282
00283 TLG tlg = GetTLG(ti->tile);
00284 byte PCPstatus = 0;
00285 byte OverridePCP = 0;
00286 byte PPPpreferred[DIAGDIR_END];
00287 byte PPPallowed[DIAGDIR_END];
00288
00289
00290
00291
00292
00293
00294
00295 trackconfig[TS_HOME] = GetRailTrackBitsUniversal(ti->tile, &OverridePCP);
00296 wireconfig[TS_HOME] = MaskWireBits(ti->tile, trackconfig[TS_HOME]);
00297
00298 isflat[TS_HOME] = ((trackconfig[TS_HOME] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
00299
00300 AdjustTileh(ti->tile, &tileh[TS_HOME]);
00301
00302 SpriteID pylon_normal = GetPylonBase(ti->tile);
00303 SpriteID pylon_halftile = (halftile_corner != CORNER_INVALID) ? GetPylonBase(ti->tile, TCX_UPPER_HALFTILE) : pylon_normal;
00304
00305 for (DiagDirection i = DIAGDIR_BEGIN; i < DIAGDIR_END; i++) {
00306 static const uint edge_corners[] = {
00307 1 << CORNER_N | 1 << CORNER_E,
00308 1 << CORNER_S | 1 << CORNER_E,
00309 1 << CORNER_S | 1 << CORNER_W,
00310 1 << CORNER_N | 1 << CORNER_W,
00311 };
00312 SpriteID pylon_base = (halftile_corner != CORNER_INVALID && HasBit(edge_corners[i], halftile_corner)) ? pylon_halftile : pylon_normal;
00313 TileIndex neighbour = ti->tile + TileOffsByDiagDir(i);
00314 Foundation foundation = FOUNDATION_NONE;
00315 byte elevation = GetPCPElevation(ti->tile, i);
00316
00317
00318
00319 tileh[TS_NEIGHBOUR] = GetTileSlope(neighbour, NULL);
00320 trackconfig[TS_NEIGHBOUR] = GetRailTrackBitsUniversal(neighbour, NULL);
00321 wireconfig[TS_NEIGHBOUR] = MaskWireBits(neighbour, trackconfig[TS_NEIGHBOUR]);
00322 if (IsTunnelTile(neighbour) && i != GetTunnelBridgeDirection(neighbour)) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00323
00324
00325
00326 if (elevation != GetPCPElevation(neighbour, ReverseDiagDir(i))) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00327
00328 isflat[TS_NEIGHBOUR] = ((trackconfig[TS_NEIGHBOUR] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
00329
00330 PPPpreferred[i] = 0xFF;
00331 PPPallowed[i] = AllowedPPPonPCP[i];
00332
00333
00334
00335 for (uint k = 0; k < NUM_TRACKS_AT_PCP; k++) {
00336
00337 if (TrackSourceTile[i][k] == TS_NEIGHBOUR &&
00338 IsBridgeTile(neighbour) &&
00339 GetTunnelBridgeDirection(neighbour) == ReverseDiagDir(i)) {
00340 continue;
00341 }
00342
00343
00344
00345 DiagDirection PCPpos = i;
00346 if (HasBit(wireconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00347
00348
00349 PCPpos = (TrackSourceTile[i][k] == TS_HOME) ? i : ReverseDiagDir(i);
00350 SetBit(PCPstatus, i);
00351 PPPpreferred[i] &= PreferredPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00352 }
00353
00354 if (HasBit(trackconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00355 PPPallowed[i] &= ~DisallowedPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00356 }
00357 }
00358
00359
00360 if (!HasBit(PCPstatus, i)) {
00361 PPPpreferred[i] = 0;
00362 PPPallowed[i] = 0;
00363 }
00364
00365
00366 if (IsTileType(neighbour, MP_STATION)) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00367
00368
00369 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE && IsTileType(neighbour, MP_RAILWAY) && HasCatenary(GetRailType(neighbour))) foundation = GetRailFoundation(tileh[TS_NEIGHBOUR], trackconfig[TS_NEIGHBOUR]);
00370 if (IsBridgeTile(neighbour)) {
00371 foundation = GetBridgeFoundation(tileh[TS_NEIGHBOUR], DiagDirToAxis(GetTunnelBridgeDirection(neighbour)));
00372 }
00373
00374 ApplyFoundationToSlope(foundation, &tileh[TS_NEIGHBOUR]);
00375
00376
00377
00378 if (IsHalftileSlope(tileh[TS_NEIGHBOUR])) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00379
00380 AdjustTileh(neighbour, &tileh[TS_NEIGHBOUR]);
00381
00382
00383
00384
00385 if (tileh[TS_HOME] == tileh[TS_NEIGHBOUR] || (isflat[TS_HOME] && isflat[TS_NEIGHBOUR])) {
00386 for (uint k = 0; k < NUM_IGNORE_GROUPS; k++) {
00387 if (PPPpreferred[i] == IgnoredPCP[k][tlg][i]) ClrBit(PCPstatus, i);
00388 }
00389 }
00390
00391
00392
00393
00394
00395 if ((PPPallowed[i] & PPPpreferred[i]) != 0) PPPallowed[i] &= PPPpreferred[i];
00396
00397 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile)) {
00398 Track bridgetrack = GetBridgeAxis(ti->tile) == AXIS_X ? TRACK_X : TRACK_Y;
00399 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00400
00401 if ((height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) &&
00402 (i == PCPpositions[bridgetrack][0] || i == PCPpositions[bridgetrack][1])) {
00403 SetBit(OverridePCP, i);
00404 }
00405 }
00406
00407 if (PPPallowed[i] != 0 && HasBit(PCPstatus, i) && !HasBit(OverridePCP, i)) {
00408 for (Direction k = DIR_BEGIN; k < DIR_END; k++) {
00409 byte temp = PPPorder[i][GetTLG(ti->tile)][k];
00410
00411 if (HasBit(PPPallowed[i], temp)) {
00412 uint x = ti->x + x_pcp_offsets[i] + x_ppp_offsets[temp];
00413 uint y = ti->y + y_pcp_offsets[i] + y_ppp_offsets[temp];
00414
00415
00416 if (!HasBit(OwnedPPPonPCP[i], temp)) {
00417
00418 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE) break;
00419 continue;
00420 }
00421
00422 AddSortableSpriteToDraw(pylon_base + pylon_sprites[temp], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE,
00423 elevation, IsTransparencySet(TO_CATENARY), -1, -1);
00424
00425 break;
00426 }
00427 }
00428 }
00429 }
00430
00431
00432 if (IsTunnelTile(ti->tile)) return;
00433
00434
00435 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
00436 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00437
00438 if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
00439 }
00440
00441 SpriteID wire_normal = GetWireBase(ti->tile);
00442 SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, TCX_UPPER_HALFTILE) : wire_normal;
00443 Track halftile_track;
00444 switch (halftile_corner) {
00445 case CORNER_W: halftile_track = TRACK_LEFT; break;
00446 case CORNER_S: halftile_track = TRACK_LOWER; break;
00447 case CORNER_E: halftile_track = TRACK_RIGHT; break;
00448 case CORNER_N: halftile_track = TRACK_UPPER; break;
00449 default: halftile_track = INVALID_TRACK; break;
00450 }
00451
00452
00453 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
00454 if (HasBit(wireconfig[TS_HOME], t)) {
00455 SpriteID wire_base = (t == halftile_track) ? wire_halftile : wire_normal;
00456 byte PCPconfig = HasBit(PCPstatus, PCPpositions[t][0]) +
00457 (HasBit(PCPstatus, PCPpositions[t][1]) << 1);
00458
00459 const SortableSpriteStruct *sss;
00460 int tileh_selector = !(tileh[TS_HOME] % 3) * tileh[TS_HOME] / 3;
00461
00462 assert(PCPconfig != 0);
00463 assert(!IsSteepSlope(tileh[TS_HOME]));
00464 sss = &CatenarySpriteData[Wires[tileh_selector][t][PCPconfig]];
00465
00466
00467
00468
00469
00470
00471 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00472 sss->x_size, sss->y_size, sss->z_size, GetSlopeZ(ti->x + sss->x_offset, ti->y + sss->y_offset) + sss->z_offset,
00473 IsTransparencySet(TO_CATENARY));
00474 }
00475 }
00476 }
00477
00478 void DrawCatenaryOnBridge(const TileInfo *ti)
00479 {
00480 TileIndex end = GetSouthernBridgeEnd(ti->tile);
00481 TileIndex start = GetOtherBridgeEnd(end);
00482
00483 uint length = GetTunnelBridgeLength(start, end);
00484 uint num = GetTunnelBridgeLength(ti->tile, start) + 1;
00485 uint height;
00486
00487 const SortableSpriteStruct *sss;
00488 Axis axis = GetBridgeAxis(ti->tile);
00489 TLG tlg = GetTLG(ti->tile);
00490
00491 CatenarySprite offset = (CatenarySprite)(axis == AXIS_X ? 0 : WIRE_Y_FLAT_BOTH - WIRE_X_FLAT_BOTH);
00492
00493 if ((length % 2) && num == length) {
00494
00495
00496 sss = &CatenarySpriteData[WIRE_X_FLAT_BOTH + offset];
00497 } else {
00498
00499 sss = &CatenarySpriteData[WIRE_X_FLAT_SW + (num % 2) + offset];
00500 }
00501
00502 height = GetBridgeHeight(end);
00503
00504 SpriteID wire_base = GetWireBase(end, TCX_ON_BRIDGE);
00505
00506 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00507 sss->x_size, sss->y_size, sss->z_size, height + sss->z_offset,
00508 IsTransparencySet(TO_CATENARY)
00509 );
00510
00511 SpriteID pylon_base = GetPylonBase(end, TCX_ON_BRIDGE);
00512
00513
00514
00515 if (num % 2) {
00516 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_NE : DIAGDIR_NW);
00517 Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
00518 if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
00519 uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
00520 uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
00521 AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
00522 }
00523
00524
00525 if (GetTunnelBridgeLength(ti->tile, start) + 1 == length) {
00526 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_SW : DIAGDIR_SE);
00527 Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
00528 if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
00529 uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
00530 uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
00531 AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
00532 }
00533 }
00534
00535 void DrawCatenary(const TileInfo *ti)
00536 {
00537 switch (GetTileType(ti->tile)) {
00538 case MP_RAILWAY:
00539 if (IsRailDepot(ti->tile)) {
00540 const SortableSpriteStruct *sss = &CatenarySpriteData_Depot[GetRailDepotDirection(ti->tile)];
00541
00542 SpriteID wire_base = GetWireBase(ti->tile);
00543
00544
00545 AddSortableSpriteToDraw(
00546 wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00547 sss->x_size, sss->y_size, sss->z_size,
00548 GetTileMaxZ(ti->tile) + sss->z_offset,
00549 IsTransparencySet(TO_CATENARY)
00550 );
00551 return;
00552 }
00553 break;
00554
00555 case MP_TUNNELBRIDGE:
00556 case MP_ROAD:
00557 case MP_STATION:
00558 break;
00559
00560 default: return;
00561 }
00562 DrawCatenaryRailway(ti);
00563 }
00564
00565 bool SettingsDisableElrail(int32 p1)
00566 {
00567 Company *c;
00568 Train *t;
00569 bool disable = (p1 != 0);
00570
00571
00572 const RailType old_railtype = disable ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL;
00573 const RailType new_railtype = disable ? RAILTYPE_RAIL : RAILTYPE_ELECTRIC;
00574
00575
00576 Engine *e;
00577 FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
00578 RailVehicleInfo *rv_info = &e->u.rail;
00579
00580 if (rv_info->engclass == 2 && rv_info->railtype == old_railtype) {
00581
00582 rv_info->railtype = new_railtype;
00583 }
00584 }
00585
00586
00587
00588 if (disable) {
00589 FOR_ALL_TRAINS(t) {
00590 if (t->railtype == RAILTYPE_ELECTRIC) {
00591
00592
00593 t->compatible_railtypes |= RAILTYPES_RAIL;
00594 t->railtype = RAILTYPE_RAIL;
00595 SetBit(t->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL);
00596 }
00597 }
00598 }
00599
00600
00601 FOR_ALL_TRAINS(t) {
00602
00603 if (t->IsFrontEngine()) {
00604 t->ConsistChanged(true);
00605 }
00606 }
00607
00608 FOR_ALL_COMPANIES(c) c->avail_railtypes = GetCompanyRailtypes(c->index);
00609
00610
00611
00612
00613 ReinitGuiAfterToggleElrail(disable);
00614 return true;
00615 }