From c7168f09c315795a88b70d5486b2ced6356f0cd4 Mon Sep 17 00:00:00 2001 From: rubidium Date: Sun, 3 Feb 2013 10:03:38 +0000 Subject: (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 --- src/station_cmd.cpp | 34 ++++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-) diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp index 8b08cc2a9..dc898d9bc 100644 --- a/src/station_cmd.cpp +++ b/src/station_cmd.cpp @@ -1236,8 +1236,9 @@ CommandCost CmdBuildRailStation(TileIndex tile_org, DoCommandFlag flags, uint32 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++; @@ -1293,9 +1294,9 @@ CommandCost CmdBuildRailStation(TileIndex tile_org, DoCommandFlag flags, uint32 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) { @@ -1307,6 +1308,31 @@ CommandCost CmdBuildRailStation(TileIndex tile_org, DoCommandFlag flags, uint32 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); -- cgit v1.2.3-70-g09d2