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00057 #include "stdafx.h"
00058 #include "station_map.h"
00059 #include "viewport_func.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 "company_base.h"
00066 #include "newgrf_railtype.h"
00067
00068 #include "table/elrail_data.h"
00069
00075 static inline TLG GetTLG(TileIndex t)
00076 {
00077 return (TLG)((HasBit(TileX(t), 0) << 1) + HasBit(TileY(t), 0));
00078 }
00079
00086 static TrackBits GetRailTrackBitsUniversal(TileIndex t, byte *override)
00087 {
00088 switch (GetTileType(t)) {
00089 case MP_RAILWAY:
00090 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00091 switch (GetRailTileType(t)) {
00092 case RAIL_TILE_NORMAL: case RAIL_TILE_SIGNALS:
00093 return GetTrackBits(t);
00094 default:
00095 return TRACK_BIT_NONE;
00096 }
00097 break;
00098
00099 case MP_TUNNELBRIDGE:
00100 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00101 if (override != NULL && (IsTunnel(t) || GetTunnelBridgeLength(t, GetOtherBridgeEnd(t)) > 0)) {
00102 *override = 1 << GetTunnelBridgeDirection(t);
00103 }
00104 return DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t));
00105
00106 case MP_ROAD:
00107 if (!IsLevelCrossing(t)) return TRACK_BIT_NONE;
00108 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00109 return GetCrossingRailBits(t);
00110
00111 case MP_STATION:
00112 if (!HasStationRail(t)) return TRACK_BIT_NONE;
00113 if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
00114 if (!IsStationTileElectrifiable(t)) return TRACK_BIT_NONE;
00115 return TrackToTrackBits(GetRailStationTrack(t));
00116
00117 default:
00118 return TRACK_BIT_NONE;
00119 }
00120 }
00121
00125 static TrackBits MaskWireBits(TileIndex t, TrackBits tracks)
00126 {
00127 if (!IsPlainRailTile(t)) return tracks;
00128
00129 TrackdirBits neighbour_tdb = TRACKDIR_BIT_NONE;
00130 for (DiagDirection d = DIAGDIR_BEGIN; d < DIAGDIR_END; d++) {
00131
00132
00133
00134 RailType rt = GetTileRailType(TileAddByDiagDir(t, d));
00135 if (rt == INVALID_RAILTYPE || !HasCatenary(rt) || (TrackStatusToTrackBits(GetTileTrackStatus(TileAddByDiagDir(t, d), TRANSPORT_RAIL, 0)) & DiagdirReachesTracks(d)) == TRACK_BIT_NONE) {
00136 neighbour_tdb |= DiagdirReachesTrackdirs(ReverseDiagDir(d));
00137 }
00138 }
00139
00140
00141
00142
00143 TrackBits mask;
00144 if (tracks == TRACK_BIT_CROSS || !TracksOverlap(tracks)) {
00145
00146
00147 mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
00148
00149
00150 if (tracks != TRACK_BIT_CROSS && (mask & TRACK_BIT_MASK) == TRACK_BIT_MASK) mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
00151 } else {
00152
00153 mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
00154
00155 if ((tracks & mask) == TRACK_BIT_NONE) {
00156 if ((neighbour_tdb & TRACKDIR_BIT_X_NE) == 0 || (neighbour_tdb & TRACKDIR_BIT_X_SW) == 0) mask |= TRACK_BIT_X;
00157 if ((neighbour_tdb & TRACKDIR_BIT_Y_NW) == 0 || (neighbour_tdb & TRACKDIR_BIT_Y_SE) == 0) mask |= TRACK_BIT_Y;
00158
00159 if ((tracks & mask) == TRACK_BIT_NONE) mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
00160 }
00161 }
00162
00163
00164 return (tracks & mask) != TRACK_BIT_NONE ? tracks & mask : tracks;
00165 }
00166
00170 static inline SpriteID GetWireBase(TileIndex tile, TileContext context = TCX_NORMAL)
00171 {
00172 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
00173 SpriteID wires = GetCustomRailSprite(rti, tile, RTSG_WIRES, context);
00174 return wires == 0 ? SPR_WIRE_BASE : wires;
00175 }
00176
00180 static inline SpriteID GetPylonBase(TileIndex tile, TileContext context = TCX_NORMAL)
00181 {
00182 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
00183 SpriteID pylons = GetCustomRailSprite(rti, tile, RTSG_PYLONS, context);
00184 return pylons == 0 ? SPR_PYLON_BASE : pylons;
00185 }
00186
00192 static void AdjustTileh(TileIndex tile, Slope *tileh)
00193 {
00194 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00195 if (IsTunnel(tile)) {
00196 *tileh = SLOPE_STEEP;
00197 } else if (*tileh != SLOPE_FLAT) {
00198 *tileh = SLOPE_FLAT;
00199 } else {
00200 *tileh = InclinedSlope(GetTunnelBridgeDirection(tile));
00201 }
00202 }
00203 }
00204
00212 static byte GetPCPElevation(TileIndex tile, DiagDirection PCPpos)
00213 {
00214
00215
00216
00217
00218
00219
00220
00221
00222
00223
00224
00225
00226
00227
00228 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));
00229 return (z + 2) & ~3;
00230 }
00231
00239 void DrawCatenaryOnTunnel(const TileInfo *ti)
00240 {
00241
00242 static const int _tunnel_wire_BB[4][4] = {
00243 { 0, 1, 16, 15 },
00244 { 1, 0, 15, 16 },
00245 { 0, 1, 16, 15 },
00246 { 1, 0, 15, 16 },
00247 };
00248
00249 DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
00250
00251 SpriteID wire_base = GetWireBase(ti->tile);
00252
00253 const SortableSpriteStruct *sss = &CatenarySpriteData_Tunnel[dir];
00254 const int *BB_data = _tunnel_wire_BB[dir];
00255 AddSortableSpriteToDraw(
00256 wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00257 BB_data[2] - sss->x_offset, BB_data[3] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset + 1,
00258 GetTileZ(ti->tile) + sss->z_offset,
00259 IsTransparencySet(TO_CATENARY),
00260 BB_data[0] - sss->x_offset, BB_data[1] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset
00261 );
00262 }
00263
00268 static void DrawCatenaryRailway(const TileInfo *ti)
00269 {
00270
00271
00272
00273 TrackBits trackconfig[TS_END];
00274 TrackBits wireconfig[TS_END];
00275 bool isflat[TS_END];
00276
00277 Slope tileh[TS_END] = { ti->tileh, SLOPE_FLAT };
00278
00279
00280
00281 Corner halftile_corner = CORNER_INVALID;
00282 if (IsHalftileSlope(tileh[TS_HOME])) {
00283 halftile_corner = GetHalftileSlopeCorner(tileh[TS_HOME]);
00284 tileh[TS_HOME] = SLOPE_FLAT;
00285 }
00286
00287 TLG tlg = GetTLG(ti->tile);
00288 byte PCPstatus = 0;
00289 byte OverridePCP = 0;
00290 byte PPPpreferred[DIAGDIR_END];
00291 byte PPPallowed[DIAGDIR_END];
00292
00293
00294
00295
00296
00297
00298
00299 trackconfig[TS_HOME] = GetRailTrackBitsUniversal(ti->tile, &OverridePCP);
00300 wireconfig[TS_HOME] = MaskWireBits(ti->tile, trackconfig[TS_HOME]);
00301
00302 isflat[TS_HOME] = ((trackconfig[TS_HOME] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
00303
00304 AdjustTileh(ti->tile, &tileh[TS_HOME]);
00305
00306 SpriteID pylon_normal = GetPylonBase(ti->tile);
00307 SpriteID pylon_halftile = (halftile_corner != CORNER_INVALID) ? GetPylonBase(ti->tile, TCX_UPPER_HALFTILE) : pylon_normal;
00308
00309 for (DiagDirection i = DIAGDIR_BEGIN; i < DIAGDIR_END; i++) {
00310 static const uint edge_corners[] = {
00311 1 << CORNER_N | 1 << CORNER_E,
00312 1 << CORNER_S | 1 << CORNER_E,
00313 1 << CORNER_S | 1 << CORNER_W,
00314 1 << CORNER_N | 1 << CORNER_W,
00315 };
00316 SpriteID pylon_base = (halftile_corner != CORNER_INVALID && HasBit(edge_corners[i], halftile_corner)) ? pylon_halftile : pylon_normal;
00317 TileIndex neighbour = ti->tile + TileOffsByDiagDir(i);
00318 byte elevation = GetPCPElevation(ti->tile, i);
00319
00320
00321
00322 tileh[TS_NEIGHBOUR] = GetTileSlope(neighbour, NULL);
00323 trackconfig[TS_NEIGHBOUR] = GetRailTrackBitsUniversal(neighbour, NULL);
00324 wireconfig[TS_NEIGHBOUR] = MaskWireBits(neighbour, trackconfig[TS_NEIGHBOUR]);
00325 if (IsTunnelTile(neighbour) && i != GetTunnelBridgeDirection(neighbour)) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00326
00327
00328
00329 if (elevation != GetPCPElevation(neighbour, ReverseDiagDir(i))) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00330
00331 isflat[TS_NEIGHBOUR] = ((trackconfig[TS_NEIGHBOUR] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
00332
00333 PPPpreferred[i] = 0xFF;
00334 PPPallowed[i] = AllowedPPPonPCP[i];
00335
00336
00337
00338 for (uint k = 0; k < NUM_TRACKS_AT_PCP; k++) {
00339
00340 if (TrackSourceTile[i][k] == TS_NEIGHBOUR &&
00341 IsBridgeTile(neighbour) &&
00342 GetTunnelBridgeDirection(neighbour) == ReverseDiagDir(i)) {
00343 continue;
00344 }
00345
00346
00347
00348 DiagDirection PCPpos = i;
00349 if (HasBit(wireconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00350
00351
00352 PCPpos = (TrackSourceTile[i][k] == TS_HOME) ? i : ReverseDiagDir(i);
00353 SetBit(PCPstatus, i);
00354 PPPpreferred[i] &= PreferredPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00355 }
00356
00357 if (HasBit(trackconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00358 PPPallowed[i] &= ~DisallowedPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00359 }
00360 }
00361
00362
00363 if (!HasBit(PCPstatus, i)) {
00364 PPPpreferred[i] = 0;
00365 PPPallowed[i] = 0;
00366 }
00367
00368 Foundation foundation = FOUNDATION_NONE;
00369
00370
00371 if (IsTileType(neighbour, MP_STATION) || IsTileType(neighbour, MP_ROAD)) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00372
00373
00374 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE && IsTileType(neighbour, MP_RAILWAY) && HasCatenary(GetRailType(neighbour))) foundation = GetRailFoundation(tileh[TS_NEIGHBOUR], trackconfig[TS_NEIGHBOUR]);
00375 if (IsBridgeTile(neighbour)) {
00376 foundation = GetBridgeFoundation(tileh[TS_NEIGHBOUR], DiagDirToAxis(GetTunnelBridgeDirection(neighbour)));
00377 }
00378
00379 ApplyFoundationToSlope(foundation, &tileh[TS_NEIGHBOUR]);
00380
00381
00382
00383 if (IsHalftileSlope(tileh[TS_NEIGHBOUR])) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00384
00385 AdjustTileh(neighbour, &tileh[TS_NEIGHBOUR]);
00386
00387
00388
00389
00390 if (tileh[TS_HOME] == tileh[TS_NEIGHBOUR] || (isflat[TS_HOME] && isflat[TS_NEIGHBOUR])) {
00391 for (uint k = 0; k < NUM_IGNORE_GROUPS; k++) {
00392 if (PPPpreferred[i] == IgnoredPCP[k][tlg][i]) ClrBit(PCPstatus, i);
00393 }
00394 }
00395
00396
00397
00398
00399
00400 if ((PPPallowed[i] & PPPpreferred[i]) != 0) PPPallowed[i] &= PPPpreferred[i];
00401
00402 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile)) {
00403 Track bridgetrack = GetBridgeAxis(ti->tile) == AXIS_X ? TRACK_X : TRACK_Y;
00404 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00405
00406 if ((height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) &&
00407 (i == PCPpositions[bridgetrack][0] || i == PCPpositions[bridgetrack][1])) {
00408 SetBit(OverridePCP, i);
00409 }
00410 }
00411
00412 if (PPPallowed[i] != 0 && HasBit(PCPstatus, i) && !HasBit(OverridePCP, i)) {
00413 for (Direction k = DIR_BEGIN; k < DIR_END; k++) {
00414 byte temp = PPPorder[i][GetTLG(ti->tile)][k];
00415
00416 if (HasBit(PPPallowed[i], temp)) {
00417 uint x = ti->x + x_pcp_offsets[i] + x_ppp_offsets[temp];
00418 uint y = ti->y + y_pcp_offsets[i] + y_ppp_offsets[temp];
00419
00420
00421 if (!HasBit(OwnedPPPonPCP[i], temp)) {
00422
00423 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE) break;
00424 continue;
00425 }
00426
00427 AddSortableSpriteToDraw(pylon_base + pylon_sprites[temp], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE,
00428 elevation, IsTransparencySet(TO_CATENARY), -1, -1);
00429
00430 break;
00431 }
00432 }
00433 }
00434 }
00435
00436
00437 if (IsTunnelTile(ti->tile)) return;
00438
00439
00440 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
00441 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00442
00443 if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
00444 }
00445
00446 SpriteID wire_normal = GetWireBase(ti->tile);
00447 SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, TCX_UPPER_HALFTILE) : wire_normal;
00448 Track halftile_track;
00449 switch (halftile_corner) {
00450 case CORNER_W: halftile_track = TRACK_LEFT; break;
00451 case CORNER_S: halftile_track = TRACK_LOWER; break;
00452 case CORNER_E: halftile_track = TRACK_RIGHT; break;
00453 case CORNER_N: halftile_track = TRACK_UPPER; break;
00454 default: halftile_track = INVALID_TRACK; break;
00455 }
00456
00457
00458 Track t;
00459 FOR_EACH_SET_TRACK(t, wireconfig[TS_HOME]) {
00460 SpriteID wire_base = (t == halftile_track) ? wire_halftile : wire_normal;
00461 byte PCPconfig = HasBit(PCPstatus, PCPpositions[t][0]) +
00462 (HasBit(PCPstatus, PCPpositions[t][1]) << 1);
00463
00464 const SortableSpriteStruct *sss;
00465 int tileh_selector = !(tileh[TS_HOME] % 3) * tileh[TS_HOME] / 3;
00466
00467 assert(PCPconfig != 0);
00468 assert(!IsSteepSlope(tileh[TS_HOME]));
00469 sss = &CatenarySpriteData[Wires[tileh_selector][t][PCPconfig]];
00470
00471
00472
00473
00474
00475
00476 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00477 sss->x_size, sss->y_size, sss->z_size, GetSlopeZ(ti->x + sss->x_offset, ti->y + sss->y_offset) + sss->z_offset,
00478 IsTransparencySet(TO_CATENARY));
00479 }
00480 }
00481
00489 void DrawCatenaryOnBridge(const TileInfo *ti)
00490 {
00491 TileIndex end = GetSouthernBridgeEnd(ti->tile);
00492 TileIndex start = GetOtherBridgeEnd(end);
00493
00494 uint length = GetTunnelBridgeLength(start, end);
00495 uint num = GetTunnelBridgeLength(ti->tile, start) + 1;
00496 uint height;
00497
00498 const SortableSpriteStruct *sss;
00499 Axis axis = GetBridgeAxis(ti->tile);
00500 TLG tlg = GetTLG(ti->tile);
00501
00502 CatenarySprite offset = (CatenarySprite)(axis == AXIS_X ? 0 : WIRE_Y_FLAT_BOTH - WIRE_X_FLAT_BOTH);
00503
00504 if ((length % 2) && num == length) {
00505
00506
00507 sss = &CatenarySpriteData[WIRE_X_FLAT_BOTH + offset];
00508 } else {
00509
00510 sss = &CatenarySpriteData[WIRE_X_FLAT_SW + (num % 2) + offset];
00511 }
00512
00513 height = GetBridgeHeight(end);
00514
00515 SpriteID wire_base = GetWireBase(end, TCX_ON_BRIDGE);
00516
00517 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00518 sss->x_size, sss->y_size, sss->z_size, height + sss->z_offset,
00519 IsTransparencySet(TO_CATENARY)
00520 );
00521
00522 SpriteID pylon_base = GetPylonBase(end, TCX_ON_BRIDGE);
00523
00524
00525
00526 if (num % 2) {
00527 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_NE : DIAGDIR_NW);
00528 Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
00529 if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
00530 uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
00531 uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
00532 AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
00533 }
00534
00535
00536 if (GetTunnelBridgeLength(ti->tile, start) + 1 == length) {
00537 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_SW : DIAGDIR_SE);
00538 Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
00539 if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
00540 uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
00541 uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
00542 AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
00543 }
00544 }
00545
00551 void DrawCatenary(const TileInfo *ti)
00552 {
00553 switch (GetTileType(ti->tile)) {
00554 case MP_RAILWAY:
00555 if (IsRailDepot(ti->tile)) {
00556 const SortableSpriteStruct *sss = &CatenarySpriteData_Depot[GetRailDepotDirection(ti->tile)];
00557
00558 SpriteID wire_base = GetWireBase(ti->tile);
00559
00560
00561 AddSortableSpriteToDraw(
00562 wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00563 sss->x_size, sss->y_size, sss->z_size,
00564 GetTileMaxZ(ti->tile) + sss->z_offset,
00565 IsTransparencySet(TO_CATENARY)
00566 );
00567 return;
00568 }
00569 break;
00570
00571 case MP_TUNNELBRIDGE:
00572 case MP_ROAD:
00573 case MP_STATION:
00574 break;
00575
00576 default: return;
00577 }
00578 DrawCatenaryRailway(ti);
00579 }
00580
00581 bool SettingsDisableElrail(int32 p1)
00582 {
00583 Company *c;
00584 Train *t;
00585 bool disable = (p1 != 0);
00586
00587
00588 const RailType old_railtype = disable ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL;
00589 const RailType new_railtype = disable ? RAILTYPE_RAIL : RAILTYPE_ELECTRIC;
00590
00591
00592 Engine *e;
00593 FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
00594 RailVehicleInfo *rv_info = &e->u.rail;
00595
00596 if (rv_info->engclass == 2 && rv_info->railtype == old_railtype) {
00597
00598 rv_info->railtype = new_railtype;
00599 }
00600 }
00601
00602
00603
00604 if (disable) {
00605 FOR_ALL_TRAINS(t) {
00606 if (t->railtype == RAILTYPE_ELECTRIC) {
00607
00608
00609 t->compatible_railtypes |= RAILTYPES_RAIL;
00610 t->railtype = RAILTYPE_RAIL;
00611 SetBit(t->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL);
00612 }
00613 }
00614 }
00615
00616
00617 FOR_ALL_TRAINS(t) {
00618
00619 if (t->IsFrontEngine()) {
00620 t->ConsistChanged(true);
00621 }
00622 }
00623
00624 FOR_ALL_COMPANIES(c) c->avail_railtypes = GetCompanyRailtypes(c->index);
00625
00626
00627
00628
00629 ReinitGuiAfterToggleElrail(disable);
00630 return true;
00631 }