cpp/openttd-patchpack/source Changeset - r20005:47118c6806f3

Changeset - r20005:47118c6806f3

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rubidium - 12 years ago 2013-02-03 10:03:38
rubidium@openttd.org

(svn r24961) -Fix [FS#5362] (r23564): making occupied platforms larger would make train reserve onto the newly unreserved bit and cause crashes. Now if a platform is enlarged and there is a reservation, reserve the whole platform

1 file changed with 30 insertions and 4 deletions:

src/station_cmd.cpp

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src/station_cmd.cpp

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@@ @@ -1233,14 +1233,15 @@ CommandCost CmdBuildRailStation(TileInde @@
 		layout_ptr = AllocaM(byte, numtracks * plat_len);
 		GetStationLayout(layout_ptr, numtracks, plat_len, statspec);
 		numtracks_orig = numtracks;
 		Company *c = Company::Get(st->owner);
 		TileIndex tile_track = tile_org;
 		do {
-			TileIndex tile = tile_org;
+			TileIndex tile = tile_track;
 			int w = plat_len;
 			do {
 				byte layout = *layout_ptr++;
 				if (IsRailStationTile(tile) && HasStationReservation(tile)) {
 					/* Check for trains having a reservation for this tile. */
 					Train *v = GetTrainForReservation(tile, AxisToTrack(GetRailStationAxis(tile)));
@@ @@ -1290,26 +1291,51 @@ CommandCost CmdBuildRailStation(TileInde @@
 					/* Trigger station animation -- after building? */
 					TriggerStationAnimation(st, tile, SAT_BUILT);
+				}
 				tile += tile_delta;
 			} while (--w);
 			AddTrackToSignalBuffer(tile_org, track, _current_company);
 			YapfNotifyTrackLayoutChange(tile_org, track);
 			tile_org += tile_delta ^ TileDiffXY(1, 1); // perpendicular to tile_delta
 			AddTrackToSignalBuffer(tile_track, track, _current_company);
 			YapfNotifyTrackLayoutChange(tile_track, track);
 			tile_track += tile_delta ^ TileDiffXY(1, 1); // perpendicular to tile_delta
 		} while (--numtracks);
 		for (uint i = 0; i < affected_vehicles.Length(); ++i) {
 			/* Restore reservations of trains. */
 			Train *v = affected_vehicles[i];
 			if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
 			TryPathReserve(v, true, true);
 			for (; v->Next() != NULL; v = v->Next()) { }
 			if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(ReverseTrackdir(v->GetVehicleTrackdir())), true);
+		}
 		/* Check whether we need to expand the reservation of trains already on the station. */
 		TileArea update_reservation_area;
 		if (axis == AXIS_X) {
 			update_reservation_area = TileArea(tile_org, 1, numtracks_orig);
 		} else {
 			update_reservation_area = TileArea(tile_org, numtracks_orig, 1);
+		}
 		TILE_AREA_LOOP(tile, update_reservation_area) {
 			DiagDirection dir = AxisToDiagDir(axis);
 			TileIndexDiff tile_offset = TileOffsByDiagDir(dir);
 			TileIndex platform_begin = tile - tile_offset * (st->GetPlatformLength(tile, ReverseDiagDir(dir)) - 1);
 			TileIndex platform_end   = tile + tile_offset * (st->GetPlatformLength(tile, dir) - 1);
 			/* If there is at least on reservation on the platform, we reserve the whole platform. */
 			bool reservation = false;
 			for (TileIndex t = platform_begin; !reservation && t <= platform_end; t += tile_offset) {
 				reservation = HasStationReservation(t);
+			}
 			if (reservation) {
 				SetRailStationPlatformReservation(platform_begin, dir, true);
+			}
+		}
 		st->MarkTilesDirty(false);
 		st->UpdateVirtCoord();
 		UpdateStationAcceptance(st, false);
 		st->RecomputeIndustriesNear();
 		InvalidateWindowData(WC_SELECT_STATION, 0, 0);
 		InvalidateWindowData(WC_STATION_LIST, st->owner, 0);

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