mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r14258) -Codechange: rework the way to query the vehicle hash to make sure it always results in the same irregardless of the order of the hash-linked-list.
-Fix: desync in PBS reservation following, vehicle flooding and road vehicle overtake/follow code.
This commit is contained in:
rubidium
parent
f4ee4fd5ae
commit
9474db5cb6
57
src/pbs.cpp
57
src/pbs.cpp
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@ -206,12 +206,29 @@ static PBSTileInfo FollowReservation(Owner o, RailTypes rts, TileIndex tile, Tra
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return PBSTileInfo(tile, trackdir, false);
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}
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/** Callback for VehicleFromPos to find a train on a specific track. */
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/**
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* Helper struct for finding the best matching vehicle on a specific track.
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*/
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struct FindTrainOnTrackInfo {
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PBSTileInfo res; ///< Information about the track.
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Vehicle *best; ///< The currently "best" vehicle we have found.
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/** Init the best location to NULL always! */
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FindTrainOnTrackInfo() : best(NULL) {}
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};
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/** Callback for Has/FindVehicleOnPos to find a train on a specific track. */
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static Vehicle *FindTrainOnTrackEnum(Vehicle *v, void *data)
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{
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PBSTileInfo info = *(PBSTileInfo *)data;
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FindTrainOnTrackInfo *info = (FindTrainOnTrackInfo *)data;
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if (v->type == VEH_TRAIN && !(v->vehstatus & VS_CRASHED) && HasBit((TrackBits)v->u.rail.track, TrackdirToTrack(info.trackdir))) return v;
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if (v->type == VEH_TRAIN && !(v->vehstatus & VS_CRASHED) && HasBit((TrackBits)v->u.rail.track, TrackdirToTrack(info->res.trackdir))) {
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v = v->First();
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/* ALWAYS return the lowest ID (anti-desync!) */
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if (info->best == NULL || v->index < info->best->index) info->best = v;
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return v;
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}
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return NULL;
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}
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@ -223,7 +240,7 @@ static Vehicle *FindTrainOnTrackEnum(Vehicle *v, void *data)
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* @param train_on_res Is set to a train we might encounter
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* @returns The last tile of the reservation or the current train tile if no reservation present.
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*/
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PBSTileInfo FollowTrainReservation(const Vehicle *v, Vehicle **train_on_res)
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PBSTileInfo FollowTrainReservation(const Vehicle *v, bool *train_on_res)
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{
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assert(v->type == VEH_TRAIN);
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@ -232,10 +249,11 @@ PBSTileInfo FollowTrainReservation(const Vehicle *v, Vehicle **train_on_res)
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if (IsRailDepotTile(tile) && !GetRailDepotReservation(tile)) return PBSTileInfo(tile, trackdir, false);
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PBSTileInfo res = FollowReservation(v->owner, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes, tile, trackdir);
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res.okay = IsSafeWaitingPosition(v, res.tile, res.trackdir, true, _settings_game.pf.forbid_90_deg);
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if (train_on_res != NULL) *train_on_res = VehicleFromPos(res.tile, &res, FindTrainOnTrackEnum);
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return res;
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FindTrainOnTrackInfo ftoti;
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ftoti.res = FollowReservation(v->owner, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes, tile, trackdir);
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ftoti.res.okay = IsSafeWaitingPosition(v, ftoti.res.tile, ftoti.res.trackdir, true, _settings_game.pf.forbid_90_deg);
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if (train_on_res != NULL) *train_on_res = HasVehicleOnPos(ftoti.res.tile, &ftoti, FindTrainOnTrackEnum);
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return ftoti.res;
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}
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/**
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@ -256,24 +274,25 @@ Vehicle *GetTrainForReservation(TileIndex tile, Track track)
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* have a train on it. We need FollowReservation to ignore one-way signals
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* here, as one of the two search directions will be the "wrong" way. */
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for (int i = 0; i < 2; ++i, trackdir = ReverseTrackdir(trackdir)) {
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PBSTileInfo dest = FollowReservation(GetTileOwner(tile), rts, tile, trackdir, true);
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FindTrainOnTrackInfo ftoti;
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ftoti.res = FollowReservation(GetTileOwner(tile), rts, tile, trackdir, true);
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Vehicle *v = VehicleFromPos(dest.tile, &dest, FindTrainOnTrackEnum);
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if (v != NULL) return v->First();
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FindVehicleOnPos(ftoti.res.tile, &ftoti, FindTrainOnTrackEnum);
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if (ftoti.best != NULL) return ftoti.best;
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/* Special case for stations: check the whole platform for a vehicle. */
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if (IsRailwayStationTile(dest.tile)) {
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TileIndexDiff diff = TileOffsByDiagDir(TrackdirToExitdir(ReverseTrackdir(dest.trackdir)));
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for (TileIndex st_tile = dest.tile + diff; IsCompatibleTrainStationTile(st_tile, dest.tile); st_tile += diff) {
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v = VehicleFromPos(st_tile, &dest, FindTrainOnTrackEnum);
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if (v != NULL) return v->First();
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if (IsRailwayStationTile(ftoti.res.tile)) {
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TileIndexDiff diff = TileOffsByDiagDir(TrackdirToExitdir(ReverseTrackdir(ftoti.res.trackdir)));
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for (TileIndex st_tile = ftoti.res.tile + diff; IsCompatibleTrainStationTile(st_tile, ftoti.res.tile); st_tile += diff) {
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FindVehicleOnPos(st_tile, &ftoti, FindTrainOnTrackEnum);
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if (ftoti.best != NULL) return ftoti.best;
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}
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}
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/* Special case for bridges/tunnels: check the other end as well. */
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if (IsTileType(dest.tile, MP_TUNNELBRIDGE)) {
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v = VehicleFromPos(GetOtherTunnelBridgeEnd(dest.tile), &dest, FindTrainOnTrackEnum);
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if (v != NULL) return v->First();
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if (IsTileType(ftoti.res.tile, MP_TUNNELBRIDGE)) {
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FindVehicleOnPos(GetOtherTunnelBridgeEnd(ftoti.res.tile), &ftoti, FindTrainOnTrackEnum);
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if (ftoti.best != NULL) return ftoti.best;
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}
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}
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@ -27,7 +27,7 @@ struct PBSTileInfo {
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PBSTileInfo(TileIndex _t, Trackdir _td, bool _okay) : tile(_t), trackdir(_td), okay(_okay) {}
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};
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PBSTileInfo FollowTrainReservation(const Vehicle *v, Vehicle **train_on_res = NULL);
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PBSTileInfo FollowTrainReservation(const Vehicle *v, bool *train_on_res = NULL);
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bool IsSafeWaitingPosition(const Vehicle *v, TileIndex tile, Trackdir trackdir, bool include_line_end, bool forbid_90deg = false);
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bool IsWaitingPositionFree(const Vehicle *v, TileIndex tile, Trackdir trackdir, bool forbid_90deg = false);
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@ -130,7 +130,7 @@ static bool EnsureNoTrainOnTrack(TileIndex tile, Track track)
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{
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TrackBits rail_bits = TrackToTrackBits(track);
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return VehicleFromPos(tile, &rail_bits, &EnsureNoTrainOnTrackProc) == NULL;
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return !HasVehicleOnPos(tile, &rail_bits, &EnsureNoTrainOnTrackProc);
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}
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static bool CheckTrackCombination(TileIndex tile, TrackBits to_build, uint flags)
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@ -1334,7 +1334,7 @@ CommandCost CmdConvertRail(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
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SetRailType(tile, totype);
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MarkTileDirtyByTile(tile);
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/* update power of train engines on this tile */
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VehicleFromPos(tile, NULL, &UpdateTrainPowerProc);
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FindVehicleOnPos(tile, NULL, &UpdateTrainPowerProc);
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}
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}
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@ -1384,7 +1384,7 @@ CommandCost CmdConvertRail(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
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/* When not coverting rail <-> el. rail, any vehicle cannot be in tunnel/bridge */
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if (!IsCompatibleRail(GetRailType(tile), totype) &&
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GetVehicleTunnelBridge(tile, endtile) != NULL) continue;
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!HasVehicleOnTunnelBridge(tile, endtile)) continue;
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if (flags & DC_EXEC) {
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Track track = DiagDirToDiagTrack(GetTunnelBridgeDirection(tile));
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@ -1398,8 +1398,8 @@ CommandCost CmdConvertRail(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
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SetRailType(tile, totype);
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SetRailType(endtile, totype);
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VehicleFromPos(tile, NULL, &UpdateTrainPowerProc);
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VehicleFromPos(endtile, NULL, &UpdateTrainPowerProc);
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FindVehicleOnPos(tile, NULL, &UpdateTrainPowerProc);
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FindVehicleOnPos(endtile, NULL, &UpdateTrainPowerProc);
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YapfNotifyTrackLayoutChange(tile, track);
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YapfNotifyTrackLayoutChange(endtile, track);
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@ -223,7 +223,7 @@ static CommandCost RemoveRoad(TileIndex tile, uint32 flags, RoadBits pieces, Roa
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case MP_TUNNELBRIDGE:
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if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return CMD_ERROR;
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if (GetVehicleTunnelBridge(tile, GetOtherTunnelBridgeEnd(tile)) != NULL) return CMD_ERROR;
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if (HasVehicleOnTunnelBridge(tile, GetOtherTunnelBridgeEnd(tile))) return CMD_ERROR;
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break;
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default:
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@ -589,7 +589,7 @@ CommandCost CmdBuildRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
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if (MirrorRoadBits(DiagDirToRoadBits(GetTunnelBridgeDirection(tile))) != pieces) return CMD_ERROR;
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if (HasTileRoadType(tile, rt)) return_cmd_error(STR_1007_ALREADY_BUILT);
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/* Don't allow adding roadtype to the bridge/tunnel when vehicles are already driving on it */
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if (GetVehicleTunnelBridge(tile, GetOtherTunnelBridgeEnd(tile)) != NULL) return CMD_ERROR;
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if (HasVehicleOnTunnelBridge(tile, GetOtherTunnelBridgeEnd(tile))) return CMD_ERROR;
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break;
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default: {
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@ -646,7 +646,7 @@ static void RoadVehCheckTrainCrash(Vehicle *v)
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if (!IsLevelCrossingTile(tile)) continue;
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if (VehicleFromPosXY(v->x_pos, v->y_pos, u, EnumCheckRoadVehCrashTrain) != NULL) {
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if (HasVehicleOnPosXY(v->x_pos, v->y_pos, u, EnumCheckRoadVehCrashTrain)) {
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RoadVehCrash(v);
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return;
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}
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@ -725,7 +725,9 @@ static void StartRoadVehSound(const Vehicle* v)
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struct RoadVehFindData {
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int x;
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int y;
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const Vehicle* veh;
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const Vehicle *veh;
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Vehicle *best;
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uint best_diff;
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Direction dir;
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};
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@ -734,28 +736,34 @@ static Vehicle *EnumCheckRoadVehClose(Vehicle *v, void *data)
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static const int8 dist_x[] = { -4, -8, -4, -1, 4, 8, 4, 1 };
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static const int8 dist_y[] = { -4, -1, 4, 8, 4, 1, -4, -8 };
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const RoadVehFindData *rvf = (RoadVehFindData*)data;
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RoadVehFindData *rvf = (RoadVehFindData*)data;
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short x_diff = v->x_pos - rvf->x;
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short y_diff = v->y_pos - rvf->y;
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return
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v->type == VEH_ROAD &&
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!v->IsInDepot() &&
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abs(v->z_pos - rvf->veh->z_pos) < 6 &&
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v->direction == rvf->dir &&
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rvf->veh->First() != v->First() &&
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(dist_x[v->direction] >= 0 || (x_diff > dist_x[v->direction] && x_diff <= 0)) &&
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(dist_x[v->direction] <= 0 || (x_diff < dist_x[v->direction] && x_diff >= 0)) &&
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(dist_y[v->direction] >= 0 || (y_diff > dist_y[v->direction] && y_diff <= 0)) &&
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(dist_y[v->direction] <= 0 || (y_diff < dist_y[v->direction] && y_diff >= 0)) ?
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v : NULL;
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if (v->type == VEH_ROAD &&
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!v->IsInDepot() &&
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abs(v->z_pos - rvf->veh->z_pos) < 6 &&
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v->direction == rvf->dir &&
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rvf->veh->First() != v->First() &&
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(dist_x[v->direction] >= 0 || (x_diff > dist_x[v->direction] && x_diff <= 0)) &&
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(dist_x[v->direction] <= 0 || (x_diff < dist_x[v->direction] && x_diff >= 0)) &&
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(dist_y[v->direction] >= 0 || (y_diff > dist_y[v->direction] && y_diff <= 0)) &&
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(dist_y[v->direction] <= 0 || (y_diff < dist_y[v->direction] && y_diff >= 0))) {
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uint diff = abs(x_diff) + abs(y_diff);
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if (diff < rvf->best_diff || (diff == rvf->best_diff && v->index < rvf->best->index)) {
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rvf->best = v;
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rvf->best_diff = diff;
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}
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}
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return NULL;
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}
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static Vehicle* RoadVehFindCloseTo(Vehicle* v, int x, int y, Direction dir)
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static Vehicle *RoadVehFindCloseTo(Vehicle *v, int x, int y, Direction dir)
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{
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RoadVehFindData rvf;
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Vehicle *u;
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Vehicle *front = v->First();
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if (front->u.road.reverse_ctr != 0) return NULL;
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@ -764,25 +772,27 @@ static Vehicle* RoadVehFindCloseTo(Vehicle* v, int x, int y, Direction dir)
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rvf.y = y;
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rvf.dir = dir;
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rvf.veh = v;
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rvf.best_diff = UINT_MAX;
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if (front->u.road.state == RVSB_WORMHOLE) {
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u = VehicleFromPos(v->tile, &rvf, EnumCheckRoadVehClose);
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if (u == NULL) u = (Vehicle*)VehicleFromPos(GetOtherTunnelBridgeEnd(v->tile), &rvf, EnumCheckRoadVehClose);
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FindVehicleOnPos(v->tile, &rvf, EnumCheckRoadVehClose);
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FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &rvf, EnumCheckRoadVehClose);
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} else {
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u = VehicleFromPosXY(x, y, &rvf, EnumCheckRoadVehClose);
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FindVehicleOnPosXY(x, y, &rvf, EnumCheckRoadVehClose);
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}
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/* This code protects a roadvehicle from being blocked for ever
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* If more than 1480 / 74 days a road vehicle is blocked, it will
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* drive just through it. The ultimate backup-code of TTD.
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* It can be disabled. */
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if (u == NULL) {
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if (rvf.best_diff == UINT_MAX) {
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front->u.road.blocked_ctr = 0;
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return NULL;
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}
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if (++front->u.road.blocked_ctr > 1480) return NULL;
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return u;
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return rvf.best;
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}
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static void RoadVehArrivesAt(const Vehicle* v, Station* st)
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@ -903,7 +913,7 @@ static bool CheckRoadBlockedForOvertaking(OvertakeData *od)
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if (!HasBit(trackdirbits, od->trackdir) || (trackbits & ~TRACK_BIT_CROSS) || (red_signals != TRACKDIR_BIT_NONE)) return true;
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/* Are there more vehicles on the tile except the two vehicles involved in overtaking */
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return VehicleFromPos(od->tile, od, EnumFindVehBlockingOvertake) != NULL;
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return HasVehicleOnPos(od->tile, od, EnumFindVehBlockingOvertake);
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}
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static void RoadVehCheckOvertake(Vehicle *v, Vehicle *u)
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@ -285,13 +285,13 @@ static SigFlags ExploreSegment(Owner owner)
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if (IsRailDepot(tile)) {
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if (enterdir == INVALID_DIAGDIR) { // from 'inside' - train just entered or left the depot
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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exitdir = GetRailDepotDirection(tile);
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tile += TileOffsByDiagDir(exitdir);
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enterdir = ReverseDiagDir(exitdir);
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break;
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} else if (enterdir == GetRailDepotDirection(tile)) { // entered a depot
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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continue;
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} else {
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continue;
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@ -300,7 +300,7 @@ static SigFlags ExploreSegment(Owner owner)
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if (GetRailTileType(tile) == RAIL_TILE_WAYPOINT) {
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if (GetWaypointAxis(tile) != DiagDirToAxis(enterdir)) continue;
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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tile += TileOffsByDiagDir(exitdir);
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/* enterdir and exitdir stay the same */
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break;
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@ -311,10 +311,10 @@ static SigFlags ExploreSegment(Owner owner)
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if (tracks == TRACK_BIT_HORZ || tracks == TRACK_BIT_VERT) { // there is exactly one incidating track, no need to check
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tracks = tracks_masked;
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, &tracks, &EnsureNoTrainOnTrackProc) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, &tracks, &EnsureNoTrainOnTrackProc)) flags |= SF_TRAIN;
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} else {
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if (tracks_masked == TRACK_BIT_NONE) continue; // no incidating track
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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}
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if (HasSignals(tile)) { // there is exactly one track - not zero, because there is exit from this tile
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@ -366,7 +366,7 @@ static SigFlags ExploreSegment(Owner owner)
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if (DiagDirToAxis(enterdir) != GetRailStationAxis(tile)) continue; // different axis
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if (IsStationTileBlocked(tile)) continue; // 'eye-candy' station tile
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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tile += TileOffsByDiagDir(exitdir);
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break;
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@ -375,7 +375,7 @@ static SigFlags ExploreSegment(Owner owner)
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if (GetTileOwner(tile) != owner) continue;
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if (DiagDirToAxis(enterdir) == GetCrossingRoadAxis(tile)) continue; // different axis
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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tile += TileOffsByDiagDir(exitdir);
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break;
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@ -385,13 +385,13 @@ static SigFlags ExploreSegment(Owner owner)
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DiagDirection dir = GetTunnelBridgeDirection(tile);
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if (enterdir == INVALID_DIAGDIR) { // incoming from the wormhole
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if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
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if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
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||||
enterdir = dir;
|
||||
exitdir = ReverseDiagDir(dir);
|
||||
tile += TileOffsByDiagDir(exitdir); // just skip to next tile
|
||||
} else { // NOT incoming from the wormhole!
|
||||
if (ReverseDiagDir(enterdir) != dir) continue;
|
||||
if (!(flags & SF_TRAIN) && VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL) flags |= SF_TRAIN;
|
||||
if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
|
||||
tile = GetOtherTunnelBridgeEnd(tile); // just skip to exit tile
|
||||
enterdir = INVALID_DIAGDIR;
|
||||
exitdir = INVALID_DIAGDIR;
|
||||
|
|
|
|||
|
|
@ -1506,7 +1506,7 @@ static CommandCost RemoveRoadStop(Station *st, uint32 flags, TileIndex tile)
|
|||
/* don't do the check for drive-through road stops when company bankrupts */
|
||||
if (IsDriveThroughStopTile(tile) && (flags & DC_BANKRUPT)) {
|
||||
/* remove the 'going through road stop' status from all vehicles on that tile */
|
||||
if (flags & DC_EXEC) VehicleFromPos(tile, NULL, &ClearRoadStopStatusEnum);
|
||||
if (flags & DC_EXEC) FindVehicleOnPos(tile, NULL, &ClearRoadStopStatusEnum);
|
||||
} else {
|
||||
if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1694,24 +1694,22 @@ static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
|
|||
/**
|
||||
* Finds a vehicle approaching rail-road crossing
|
||||
* @param tile tile to test
|
||||
* @return pointer to vehicle approaching the crossing
|
||||
* @return true if a vehicle is approaching the crossing
|
||||
* @pre tile is a rail-road crossing
|
||||
*/
|
||||
static Vehicle *TrainApproachingCrossing(TileIndex tile)
|
||||
static bool TrainApproachingCrossing(TileIndex tile)
|
||||
{
|
||||
assert(IsLevelCrossingTile(tile));
|
||||
|
||||
DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
|
||||
TileIndex tile_from = tile + TileOffsByDiagDir(dir);
|
||||
|
||||
Vehicle *v = VehicleFromPos(tile_from, &tile, &TrainApproachingCrossingEnum);
|
||||
|
||||
if (v != NULL) return v;
|
||||
if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
|
||||
|
||||
dir = ReverseDiagDir(dir);
|
||||
tile_from = tile + TileOffsByDiagDir(dir);
|
||||
|
||||
return VehicleFromPos(tile_from, &tile, &TrainApproachingCrossingEnum);
|
||||
return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1726,7 +1724,7 @@ void UpdateLevelCrossing(TileIndex tile, bool sound)
|
|||
assert(IsLevelCrossingTile(tile));
|
||||
|
||||
/* train on crossing || train approaching crossing || reserved */
|
||||
bool new_state = VehicleFromPos(tile, NULL, &TrainOnTileEnum) != NULL || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
|
||||
bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
|
||||
|
||||
if (new_state != IsCrossingBarred(tile)) {
|
||||
if (new_state && sound) {
|
||||
|
|
@ -3028,7 +3026,7 @@ bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
|
|||
}
|
||||
}
|
||||
|
||||
Vehicle *other_train = NULL;
|
||||
bool other_train = false;
|
||||
PBSTileInfo origin = FollowTrainReservation(v, &other_train);
|
||||
/* If we have a reserved path and the path ends at a safe tile, we are finished already. */
|
||||
if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
|
||||
|
|
@ -3041,7 +3039,7 @@ bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
|
|||
* This can only happen when tracks and signals are changed. A crash
|
||||
* is probably imminent, don't do any further reservation because
|
||||
* it might cause stale reservations. */
|
||||
if (other_train != NULL && v->tile != origin.tile) {
|
||||
if (other_train && v->tile != origin.tile) {
|
||||
if (mark_as_stuck) MarkTrainAsStuck(v);
|
||||
return false;
|
||||
}
|
||||
|
|
@ -3518,10 +3516,10 @@ static void CheckTrainCollision(Vehicle *v)
|
|||
|
||||
/* find colliding vehicles */
|
||||
if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
|
||||
VehicleFromPos(v->tile, &tcc, FindTrainCollideEnum);
|
||||
VehicleFromPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
|
||||
FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
|
||||
FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
|
||||
} else {
|
||||
VehicleFromPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
|
||||
FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
|
||||
}
|
||||
|
||||
/* any dead -> no crash */
|
||||
|
|
@ -3652,7 +3650,7 @@ static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image)
|
|||
exitdir = ReverseDiagDir(exitdir);
|
||||
|
||||
/* check if a train is waiting on the other side */
|
||||
if (VehicleFromPos(o_tile, &exitdir, &CheckVehicleAtSignal) == NULL) return;
|
||||
if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3819,9 +3817,9 @@ reverse_train_direction:
|
|||
}
|
||||
|
||||
/** Collect trackbits of all crashed train vehicles on a tile
|
||||
* @param v Vehicle passed from VehicleFromPos()
|
||||
* @param v Vehicle passed from Find/HasVehicleOnPos()
|
||||
* @param data trackdirbits for the result
|
||||
* @return NULL to not abort VehicleFromPos()
|
||||
* @return NULL to iterate over all vehicles on the tile.
|
||||
*/
|
||||
static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
|
||||
{
|
||||
|
|
@ -3894,7 +3892,7 @@ static void DeleteLastWagon(Vehicle *v)
|
|||
|
||||
/* If there are still crashed vehicles on the tile, give the track reservation to them */
|
||||
TrackBits remaining_trackbits = TRACK_BIT_NONE;
|
||||
VehicleFromPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
|
||||
FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
|
||||
|
||||
/* It is important that these two are the first in the loop, as reservation cannot deal with every trackbit combination */
|
||||
assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
|
||||
|
|
|
|||
|
|
@ -605,7 +605,7 @@ static CommandCost DoClearTunnel(TileIndex tile, uint32 flags)
|
|||
|
||||
endtile = GetOtherTunnelEnd(tile);
|
||||
|
||||
if (GetVehicleTunnelBridge(tile, endtile) != NULL) return CMD_ERROR;
|
||||
if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
|
||||
|
||||
_build_tunnel_endtile = endtile;
|
||||
|
||||
|
|
@ -670,7 +670,7 @@ static CommandCost DoClearBridge(TileIndex tile, uint32 flags)
|
|||
|
||||
endtile = GetOtherBridgeEnd(tile);
|
||||
|
||||
if (GetVehicleTunnelBridge(tile, endtile) != NULL) return CMD_ERROR;
|
||||
if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
|
||||
|
||||
direction = GetTunnelBridgeDirection(tile);
|
||||
delta = TileOffsByDiagDir(direction);
|
||||
|
|
|
|||
145
src/vehicle.cpp
145
src/vehicle.cpp
|
|
@ -168,42 +168,12 @@ static Vehicle *EnsureNoVehicleProcZ(Vehicle *v, void *data)
|
|||
return v;
|
||||
}
|
||||
|
||||
Vehicle *FindVehicleOnTileZ(TileIndex tile, byte z)
|
||||
{
|
||||
return (Vehicle*)VehicleFromPos(tile, &z, &EnsureNoVehicleProcZ);
|
||||
}
|
||||
|
||||
bool EnsureNoVehicleOnGround(TileIndex tile)
|
||||
{
|
||||
return FindVehicleOnTileZ(tile, GetTileMaxZ(tile)) == NULL;
|
||||
byte z = GetTileMaxZ(tile);
|
||||
return !HasVehicleOnPos(tile, &z, &EnsureNoVehicleProcZ);
|
||||
}
|
||||
|
||||
Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z, bool without_crashed)
|
||||
{
|
||||
int x1 = TileX(from);
|
||||
int y1 = TileY(from);
|
||||
int x2 = TileX(to);
|
||||
int y2 = TileY(to);
|
||||
Vehicle *veh;
|
||||
|
||||
/* Make sure x1 < x2 or y1 < y2 */
|
||||
if (x1 > x2 || y1 > y2) {
|
||||
Swap(x1, x2);
|
||||
Swap(y1, y2);
|
||||
}
|
||||
FOR_ALL_VEHICLES(veh) {
|
||||
if (without_crashed && (veh->vehstatus & VS_CRASHED) != 0) continue;
|
||||
if ((veh->type == VEH_TRAIN || veh->type == VEH_ROAD) && (z == 0xFF || veh->z_pos == z)) {
|
||||
if ((veh->x_pos >> 4) >= x1 && (veh->x_pos >> 4) <= x2 &&
|
||||
(veh->y_pos >> 4) >= y1 && (veh->y_pos >> 4) <= y2) {
|
||||
return veh;
|
||||
}
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
/** Procedure called for every vehicle found in tunnel/bridge in the hash map */
|
||||
static Vehicle *GetVehicleTunnelBridgeProc(Vehicle *v, void *data)
|
||||
{
|
||||
|
|
@ -217,14 +187,12 @@ static Vehicle *GetVehicleTunnelBridgeProc(Vehicle *v, void *data)
|
|||
* Finds vehicle in tunnel / bridge
|
||||
* @param tile first end
|
||||
* @param endtile second end
|
||||
* @return pointer to vehicle found
|
||||
* @return true if the bridge has a vehicle
|
||||
*/
|
||||
Vehicle *GetVehicleTunnelBridge(TileIndex tile, TileIndex endtile)
|
||||
bool HasVehicleOnTunnelBridge(TileIndex tile, TileIndex endtile)
|
||||
{
|
||||
Vehicle *v = (Vehicle*)VehicleFromPos(tile, NULL, &GetVehicleTunnelBridgeProc);
|
||||
if (v != NULL) return v;
|
||||
|
||||
return (Vehicle*)VehicleFromPos(endtile, NULL, &GetVehicleTunnelBridgeProc);
|
||||
return HasVehicleOnPos(tile, NULL, &GetVehicleTunnelBridgeProc) ||
|
||||
HasVehicleOnPos(endtile, NULL, &GetVehicleTunnelBridgeProc);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -384,14 +352,14 @@ const int HASH_RES = 0;
|
|||
|
||||
static Vehicle *_new_vehicle_position_hash[TOTAL_HASH_SIZE];
|
||||
|
||||
static Vehicle *VehicleFromHash(int xl, int yl, int xu, int yu, void *data, VehicleFromPosProc *proc)
|
||||
static Vehicle *VehicleFromHash(int xl, int yl, int xu, int yu, void *data, VehicleFromPosProc *proc, bool find_first)
|
||||
{
|
||||
for (int y = yl; ; y = (y + (1 << HASH_BITS)) & (HASH_MASK << HASH_BITS)) {
|
||||
for (int x = xl; ; x = (x + 1) & HASH_MASK) {
|
||||
Vehicle *v = _new_vehicle_position_hash[(x + y) & TOTAL_HASH_MASK];
|
||||
for (; v != NULL; v = v->next_new_hash) {
|
||||
Vehicle *a = proc(v, data);
|
||||
if (a != NULL) return a;
|
||||
if (find_first && a != NULL) return a;
|
||||
}
|
||||
if (x == xu) break;
|
||||
}
|
||||
|
|
@ -402,7 +370,18 @@ static Vehicle *VehicleFromHash(int xl, int yl, int xu, int yu, void *data, Vehi
|
|||
}
|
||||
|
||||
|
||||
Vehicle *VehicleFromPosXY(int x, int y, void *data, VehicleFromPosProc *proc)
|
||||
/**
|
||||
* Helper function for FindVehicleOnPos/HasVehicleOnPos.
|
||||
* @note Do not call this function directly!
|
||||
* @param x The X location on the map
|
||||
* @param y The Y location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
* @param find_first Whether to return on the first found or iterate over
|
||||
* all vehicles
|
||||
* @return the best matching or first vehicle (depending on find_first).
|
||||
*/
|
||||
static Vehicle *VehicleFromPosXY(int x, int y, void *data, VehicleFromPosProc *proc, bool find_first)
|
||||
{
|
||||
const int COLL_DIST = 6;
|
||||
|
||||
|
|
@ -412,11 +391,55 @@ Vehicle *VehicleFromPosXY(int x, int y, void *data, VehicleFromPosProc *proc)
|
|||
int yl = GB((y - COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS) << HASH_BITS;
|
||||
int yu = GB((y + COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS) << HASH_BITS;
|
||||
|
||||
return VehicleFromHash(xl, yl, xu, yu, data, proc);
|
||||
return VehicleFromHash(xl, yl, xu, yu, data, proc, find_first);
|
||||
}
|
||||
|
||||
/**
|
||||
* Find a vehicle from a specific location. It will call proc for ALL vehicles
|
||||
* on the tile and YOU must make SURE that the "best one" is stored in the
|
||||
* data value and is ALWAYS the same regardless of the order of the vehicles
|
||||
* where proc was called on!
|
||||
* When you fail to do this properly you create an almost untraceable DESYNC!
|
||||
* @note The return value of proc will be ignored.
|
||||
* @note Use this when you have the intention that all vehicles
|
||||
* should be iterated over.
|
||||
* @param x The X location on the map
|
||||
* @param y The Y location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
*/
|
||||
void FindVehicleOnPosXY(int x, int y, void *data, VehicleFromPosProc *proc)
|
||||
{
|
||||
VehicleFromPosXY(x, y, data, proc, false);
|
||||
}
|
||||
|
||||
Vehicle *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
|
||||
/**
|
||||
* Checks whether a vehicle in on a specific location. It will call proc for
|
||||
* vehicles until it returns non-NULL.
|
||||
* @note Use FindVehicleOnPosXY when you have the intention that all vehicles
|
||||
* should be iterated over.
|
||||
* @param x The X location on the map
|
||||
* @param y The Y location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
* @return True if proc returned non-NULL.
|
||||
*/
|
||||
bool HasVehicleOnPosXY(int x, int y, void *data, VehicleFromPosProc *proc)
|
||||
{
|
||||
return VehicleFromPosXY(x, y, data, proc, true) != NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper function for FindVehicleOnPos/HasVehicleOnPos.
|
||||
* @note Do not call this function directly!
|
||||
* @param tile The location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
* @param find_first Whether to return on the first found or iterate over
|
||||
* all vehicles
|
||||
* @return the best matching or first vehicle (depending on find_first).
|
||||
*/
|
||||
static Vehicle *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc, bool find_first)
|
||||
{
|
||||
int x = GB(TileX(tile), HASH_RES, HASH_BITS);
|
||||
int y = GB(TileY(tile), HASH_RES, HASH_BITS) << HASH_BITS;
|
||||
|
|
@ -426,12 +449,46 @@ Vehicle *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
|
|||
if (v->tile != tile) continue;
|
||||
|
||||
Vehicle *a = proc(v, data);
|
||||
if (a != NULL) return a;
|
||||
if (find_first && a != NULL) return a;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Find a vehicle from a specific location. It will call proc for ALL vehicles
|
||||
* on the tile and YOU must make SURE that the "best one" is stored in the
|
||||
* data value and is ALWAYS the same regardless of the order of the vehicles
|
||||
* where proc was called on!
|
||||
* When you fail to do this properly you create an almost untraceable DESYNC!
|
||||
* @note The return value of proc will be ignored.
|
||||
* @note Use this when you have the intention that all vehicles
|
||||
* should be iterated over.
|
||||
* @param tile The location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
*/
|
||||
void FindVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
|
||||
{
|
||||
VehicleFromPos(tile, data, proc, false);
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks whether a vehicle in on a specific location. It will call proc for
|
||||
* vehicles until it returns non-NULL.
|
||||
* @note Use FindVehicleOnPos when you have the intention that all vehicles
|
||||
* should be iterated over.
|
||||
* @param tile The location on the map
|
||||
* @param data Arbitrary data passed to proc
|
||||
* @param proc The proc that determines whether a vehicle will be "found".
|
||||
* @return True if proc returned non-NULL.
|
||||
*/
|
||||
bool HasVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
|
||||
{
|
||||
return VehicleFromPos(tile, data, proc, true) != NULL;
|
||||
}
|
||||
|
||||
|
||||
static void UpdateNewVehiclePosHash(Vehicle *v, bool remove)
|
||||
{
|
||||
Vehicle **old_hash = v->old_new_hash;
|
||||
|
|
|
|||
|
|
@ -28,10 +28,11 @@ const Vehicle *GetLastVehicleInChain(const Vehicle *v);
|
|||
uint CountVehiclesInChain(const Vehicle *v);
|
||||
bool IsEngineCountable(const Vehicle *v);
|
||||
void DeleteVehicleChain(Vehicle *v);
|
||||
Vehicle *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc);
|
||||
Vehicle *VehicleFromPosXY(int x, int y, void *data, VehicleFromPosProc *proc);
|
||||
void FindVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc);
|
||||
void FindVehicleOnPosXY(int x, int y, void *data, VehicleFromPosProc *proc);
|
||||
bool HasVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc);
|
||||
bool HasVehicleOnPosXY(int x, int y, void *data, VehicleFromPosProc *proc);
|
||||
void CallVehicleTicks();
|
||||
Vehicle *FindVehicleOnTileZ(TileIndex tile, byte z);
|
||||
uint8 CalcPercentVehicleFilled(const Vehicle *v, StringID *color);
|
||||
|
||||
void InitializeTrains();
|
||||
|
|
@ -50,8 +51,7 @@ SpriteID GetRotorImage(const Vehicle *v);
|
|||
uint32 VehicleEnterTile(Vehicle *v, TileIndex tile, int x, int y);
|
||||
|
||||
StringID VehicleInTheWayErrMsg(const Vehicle* v);
|
||||
Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z, bool without_crashed = false);
|
||||
Vehicle *GetVehicleTunnelBridge(TileIndex tile, TileIndex endtile);
|
||||
bool HasVehicleOnTunnelBridge(TileIndex tile, TileIndex endtile);
|
||||
|
||||
void DecreaseVehicleValue(Vehicle *v);
|
||||
void CheckVehicleBreakdown(Vehicle *v);
|
||||
|
|
|
|||
|
|
@ -37,6 +37,7 @@
|
|||
#include "tree_map.h"
|
||||
#include "station_base.h"
|
||||
#include "airport.h"
|
||||
#include "aircraft.h"
|
||||
#include "newgrf_cargo.h"
|
||||
#include "effectvehicle_func.h"
|
||||
#include "oldpool_func.h"
|
||||
|
|
@ -801,28 +802,47 @@ static void AnimateTile_Water(TileIndex tile)
|
|||
/* not used */
|
||||
}
|
||||
|
||||
static void FloodVehicle(Vehicle *v);
|
||||
|
||||
/**
|
||||
* Flood a vehicle if we are allowed to flood it, i.e. when it is on the ground.
|
||||
* @param v The vehicle to test for flooding.
|
||||
* @param data The z of level to flood.
|
||||
* @return NULL as we always want to remove everything.
|
||||
*/
|
||||
static Vehicle *FloodVehicleProc(Vehicle *v, void *data)
|
||||
{
|
||||
byte z = *(byte*)data;
|
||||
|
||||
if (v->type == VEH_DISASTER || (v->type == VEH_AIRCRAFT && v->subtype == AIR_SHADOW)) return NULL;
|
||||
if (v->z_pos > z || (v->vehstatus & VS_CRASHED) != 0) return NULL;
|
||||
|
||||
FloodVehicle(v);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Finds a vehicle to flood.
|
||||
* It does not find vehicles that are already crashed on bridges, i.e. flooded.
|
||||
* @param tile the tile where to find a vehicle to flood
|
||||
* @return a vehicle too flood or NULL when there is no vehicle too flood.
|
||||
*/
|
||||
static Vehicle *FindFloodableVehicleOnTile(TileIndex tile)
|
||||
static void FloodVehicles(TileIndex tile)
|
||||
{
|
||||
byte z = 0;
|
||||
|
||||
if (IsTileType(tile, MP_STATION) && IsAirport(tile)) {
|
||||
const Station *st = GetStationByTile(tile);
|
||||
const AirportFTAClass *airport = st->Airport();
|
||||
z = 1 + airport->delta_z;
|
||||
for (uint x = 0; x < airport->size_x; x++) {
|
||||
for (uint y = 0; y < airport->size_y; y++) {
|
||||
tile = TILE_ADDXY(st->airport_tile, x, y);
|
||||
Vehicle *v = FindVehicleOnTileZ(tile, 1 + airport->delta_z);
|
||||
if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
|
||||
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
|
||||
}
|
||||
}
|
||||
|
||||
/* No vehicle could be flooded on this airport anymore */
|
||||
return NULL;
|
||||
return;
|
||||
}
|
||||
|
||||
/* if non-uniform stations are disabled, flood some train in this train station (if there is any) */
|
||||
|
|
@ -831,31 +851,23 @@ static Vehicle *FindFloodableVehicleOnTile(TileIndex tile)
|
|||
|
||||
BEGIN_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
|
||||
if (st->TileBelongsToRailStation(t)) {
|
||||
Vehicle *v = FindVehicleOnTileZ(t, 0);
|
||||
if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
|
||||
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
|
||||
}
|
||||
END_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
|
||||
|
||||
return NULL;
|
||||
return;
|
||||
}
|
||||
|
||||
if (!IsBridgeTile(tile)) return FindVehicleOnTileZ(tile, 0);
|
||||
if (!IsBridgeTile(tile)) {
|
||||
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
|
||||
return;
|
||||
}
|
||||
|
||||
TileIndex end = GetOtherBridgeEnd(tile);
|
||||
byte z = GetBridgeHeight(tile);
|
||||
Vehicle *v;
|
||||
z = GetBridgeHeight(tile);
|
||||
|
||||
/* check the start tile first since as this is closest to the water */
|
||||
v = FindVehicleOnTileZ(tile, z);
|
||||
if (v != NULL && (v->vehstatus & VS_CRASHED) == 0) return v;
|
||||
|
||||
/* check a vehicle in between both bridge heads */
|
||||
v = FindVehicleBetween(tile, end, z, true);
|
||||
if (v != NULL) return v;
|
||||
|
||||
/* check the end tile last to give fleeing vehicles a chance to escape */
|
||||
v = FindVehicleOnTileZ(end, z);
|
||||
return (v != NULL && (v->vehstatus & VS_CRASHED) == 0) ? v : NULL;
|
||||
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
|
||||
FindVehicleOnPos(end, &z, &FloodVehicleProc);
|
||||
}
|
||||
|
||||
static void FloodVehicle(Vehicle *v)
|
||||
|
|
@ -989,12 +1001,8 @@ static void DoFloodTile(TileIndex target)
|
|||
switch (GetTileType(target)) {
|
||||
case MP_RAILWAY: {
|
||||
if (!IsPlainRailTile(target)) break;
|
||||
|
||||
FloodVehicles(target);
|
||||
flooded = FloodHalftile(target);
|
||||
|
||||
Vehicle *v = FindFloodableVehicleOnTile(target);
|
||||
if (v != NULL) FloodVehicle(v);
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -1019,8 +1027,7 @@ static void DoFloodTile(TileIndex target)
|
|||
}
|
||||
} else {
|
||||
/* Flood vehicles */
|
||||
Vehicle *v = FindFloodableVehicleOnTile(target);
|
||||
if (v != NULL) FloodVehicle(v);
|
||||
FloodVehicles(target);
|
||||
|
||||
/* flood flat tile */
|
||||
if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue