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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 Foundation foundation = FOUNDATION_NONE;
00319 byte elevation = GetPCPElevation(ti->tile, i);
00320
00321
00322
00323 tileh[TS_NEIGHBOUR] = GetTileSlope(neighbour, NULL);
00324 trackconfig[TS_NEIGHBOUR] = GetRailTrackBitsUniversal(neighbour, NULL);
00325 wireconfig[TS_NEIGHBOUR] = MaskWireBits(neighbour, trackconfig[TS_NEIGHBOUR]);
00326 if (IsTunnelTile(neighbour) && i != GetTunnelBridgeDirection(neighbour)) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00327
00328
00329
00330 if (elevation != GetPCPElevation(neighbour, ReverseDiagDir(i))) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
00331
00332 isflat[TS_NEIGHBOUR] = ((trackconfig[TS_NEIGHBOUR] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
00333
00334 PPPpreferred[i] = 0xFF;
00335 PPPallowed[i] = AllowedPPPonPCP[i];
00336
00337
00338
00339 for (uint k = 0; k < NUM_TRACKS_AT_PCP; k++) {
00340
00341 if (TrackSourceTile[i][k] == TS_NEIGHBOUR &&
00342 IsBridgeTile(neighbour) &&
00343 GetTunnelBridgeDirection(neighbour) == ReverseDiagDir(i)) {
00344 continue;
00345 }
00346
00347
00348
00349 DiagDirection PCPpos = i;
00350 if (HasBit(wireconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00351
00352
00353 PCPpos = (TrackSourceTile[i][k] == TS_HOME) ? i : ReverseDiagDir(i);
00354 SetBit(PCPstatus, i);
00355 PPPpreferred[i] &= PreferredPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00356 }
00357
00358 if (HasBit(trackconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
00359 PPPallowed[i] &= ~DisallowedPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
00360 }
00361 }
00362
00363
00364 if (!HasBit(PCPstatus, i)) {
00365 PPPpreferred[i] = 0;
00366 PPPallowed[i] = 0;
00367 }
00368
00369
00370 if (IsTileType(neighbour, MP_STATION)) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00371
00372
00373 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE && IsTileType(neighbour, MP_RAILWAY) && HasCatenary(GetRailType(neighbour))) foundation = GetRailFoundation(tileh[TS_NEIGHBOUR], trackconfig[TS_NEIGHBOUR]);
00374 if (IsBridgeTile(neighbour)) {
00375 foundation = GetBridgeFoundation(tileh[TS_NEIGHBOUR], DiagDirToAxis(GetTunnelBridgeDirection(neighbour)));
00376 }
00377
00378 ApplyFoundationToSlope(foundation, &tileh[TS_NEIGHBOUR]);
00379
00380
00381
00382 if (IsHalftileSlope(tileh[TS_NEIGHBOUR])) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
00383
00384 AdjustTileh(neighbour, &tileh[TS_NEIGHBOUR]);
00385
00386
00387
00388
00389 if (tileh[TS_HOME] == tileh[TS_NEIGHBOUR] || (isflat[TS_HOME] && isflat[TS_NEIGHBOUR])) {
00390 for (uint k = 0; k < NUM_IGNORE_GROUPS; k++) {
00391 if (PPPpreferred[i] == IgnoredPCP[k][tlg][i]) ClrBit(PCPstatus, i);
00392 }
00393 }
00394
00395
00396
00397
00398
00399 if ((PPPallowed[i] & PPPpreferred[i]) != 0) PPPallowed[i] &= PPPpreferred[i];
00400
00401 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile)) {
00402 Track bridgetrack = GetBridgeAxis(ti->tile) == AXIS_X ? TRACK_X : TRACK_Y;
00403 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00404
00405 if ((height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) &&
00406 (i == PCPpositions[bridgetrack][0] || i == PCPpositions[bridgetrack][1])) {
00407 SetBit(OverridePCP, i);
00408 }
00409 }
00410
00411 if (PPPallowed[i] != 0 && HasBit(PCPstatus, i) && !HasBit(OverridePCP, i)) {
00412 for (Direction k = DIR_BEGIN; k < DIR_END; k++) {
00413 byte temp = PPPorder[i][GetTLG(ti->tile)][k];
00414
00415 if (HasBit(PPPallowed[i], temp)) {
00416 uint x = ti->x + x_pcp_offsets[i] + x_ppp_offsets[temp];
00417 uint y = ti->y + y_pcp_offsets[i] + y_ppp_offsets[temp];
00418
00419
00420 if (!HasBit(OwnedPPPonPCP[i], temp)) {
00421
00422 if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE) break;
00423 continue;
00424 }
00425
00426 AddSortableSpriteToDraw(pylon_base + pylon_sprites[temp], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE,
00427 elevation, IsTransparencySet(TO_CATENARY), -1, -1);
00428
00429 break;
00430 }
00431 }
00432 }
00433 }
00434
00435
00436 if (IsTunnelTile(ti->tile)) return;
00437
00438
00439 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
00440 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
00441
00442 if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
00443 }
00444
00445 SpriteID wire_normal = GetWireBase(ti->tile);
00446 SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, TCX_UPPER_HALFTILE) : wire_normal;
00447 Track halftile_track;
00448 switch (halftile_corner) {
00449 case CORNER_W: halftile_track = TRACK_LEFT; break;
00450 case CORNER_S: halftile_track = TRACK_LOWER; break;
00451 case CORNER_E: halftile_track = TRACK_RIGHT; break;
00452 case CORNER_N: halftile_track = TRACK_UPPER; break;
00453 default: halftile_track = INVALID_TRACK; break;
00454 }
00455
00456
00457 Track t;
00458 FOR_EACH_SET_TRACK(t, wireconfig[TS_HOME]) {
00459 SpriteID wire_base = (t == halftile_track) ? wire_halftile : wire_normal;
00460 byte PCPconfig = HasBit(PCPstatus, PCPpositions[t][0]) +
00461 (HasBit(PCPstatus, PCPpositions[t][1]) << 1);
00462
00463 const SortableSpriteStruct *sss;
00464 int tileh_selector = !(tileh[TS_HOME] % 3) * tileh[TS_HOME] / 3;
00465
00466 assert(PCPconfig != 0);
00467 assert(!IsSteepSlope(tileh[TS_HOME]));
00468 sss = &CatenarySpriteData[Wires[tileh_selector][t][PCPconfig]];
00469
00470
00471
00472
00473
00474
00475 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00476 sss->x_size, sss->y_size, sss->z_size, GetSlopeZ(ti->x + sss->x_offset, ti->y + sss->y_offset) + sss->z_offset,
00477 IsTransparencySet(TO_CATENARY));
00478 }
00479 }
00480
00488 void DrawCatenaryOnBridge(const TileInfo *ti)
00489 {
00490 TileIndex end = GetSouthernBridgeEnd(ti->tile);
00491 TileIndex start = GetOtherBridgeEnd(end);
00492
00493 uint length = GetTunnelBridgeLength(start, end);
00494 uint num = GetTunnelBridgeLength(ti->tile, start) + 1;
00495 uint height;
00496
00497 const SortableSpriteStruct *sss;
00498 Axis axis = GetBridgeAxis(ti->tile);
00499 TLG tlg = GetTLG(ti->tile);
00500
00501 CatenarySprite offset = (CatenarySprite)(axis == AXIS_X ? 0 : WIRE_Y_FLAT_BOTH - WIRE_X_FLAT_BOTH);
00502
00503 if ((length % 2) && num == length) {
00504
00505
00506 sss = &CatenarySpriteData[WIRE_X_FLAT_BOTH + offset];
00507 } else {
00508
00509 sss = &CatenarySpriteData[WIRE_X_FLAT_SW + (num % 2) + offset];
00510 }
00511
00512 height = GetBridgeHeight(end);
00513
00514 SpriteID wire_base = GetWireBase(end, TCX_ON_BRIDGE);
00515
00516 AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00517 sss->x_size, sss->y_size, sss->z_size, height + sss->z_offset,
00518 IsTransparencySet(TO_CATENARY)
00519 );
00520
00521 SpriteID pylon_base = GetPylonBase(end, TCX_ON_BRIDGE);
00522
00523
00524
00525 if (num % 2) {
00526 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_NE : DIAGDIR_NW);
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 if (GetTunnelBridgeLength(ti->tile, start) + 1 == length) {
00536 DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_SW : DIAGDIR_SE);
00537 Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
00538 if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
00539 uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
00540 uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
00541 AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
00542 }
00543 }
00544
00550 void DrawCatenary(const TileInfo *ti)
00551 {
00552 switch (GetTileType(ti->tile)) {
00553 case MP_RAILWAY:
00554 if (IsRailDepot(ti->tile)) {
00555 const SortableSpriteStruct *sss = &CatenarySpriteData_Depot[GetRailDepotDirection(ti->tile)];
00556
00557 SpriteID wire_base = GetWireBase(ti->tile);
00558
00559
00560 AddSortableSpriteToDraw(
00561 wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
00562 sss->x_size, sss->y_size, sss->z_size,
00563 GetTileMaxZ(ti->tile) + sss->z_offset,
00564 IsTransparencySet(TO_CATENARY)
00565 );
00566 return;
00567 }
00568 break;
00569
00570 case MP_TUNNELBRIDGE:
00571 case MP_ROAD:
00572 case MP_STATION:
00573 break;
00574
00575 default: return;
00576 }
00577 DrawCatenaryRailway(ti);
00578 }
00579
00580 bool SettingsDisableElrail(int32 p1)
00581 {
00582 Company *c;
00583 Train *t;
00584 bool disable = (p1 != 0);
00585
00586
00587 const RailType old_railtype = disable ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL;
00588 const RailType new_railtype = disable ? RAILTYPE_RAIL : RAILTYPE_ELECTRIC;
00589
00590
00591 Engine *e;
00592 FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
00593 RailVehicleInfo *rv_info = &e->u.rail;
00594
00595 if (rv_info->engclass == 2 && rv_info->railtype == old_railtype) {
00596
00597 rv_info->railtype = new_railtype;
00598 }
00599 }
00600
00601
00602
00603 if (disable) {
00604 FOR_ALL_TRAINS(t) {
00605 if (t->railtype == RAILTYPE_ELECTRIC) {
00606
00607
00608 t->compatible_railtypes |= RAILTYPES_RAIL;
00609 t->railtype = RAILTYPE_RAIL;
00610 SetBit(t->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL);
00611 }
00612 }
00613 }
00614
00615
00616 FOR_ALL_TRAINS(t) {
00617
00618 if (t->IsFrontEngine()) {
00619 t->ConsistChanged(true);
00620 }
00621 }
00622
00623 FOR_ALL_COMPANIES(c) c->avail_railtypes = GetCompanyRailtypes(c->index);
00624
00625
00626
00627
00628 ReinitGuiAfterToggleElrail(disable);
00629 return true;
00630 }