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(svn r13961) -Add [YAPP]: Handle train reversing. (michi_cc)

This commit is contained in:
rubidium 2008-08-02 22:56:07 +00:00
parent 9e91bb4b33
commit db637a2b7f
1 changed files with 25 additions and 0 deletions
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25
src/train_cmd.cpp
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@ -63,6 +63,7 @@ static Track ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir
static bool TrainCheckIfLineEnds(Vehicle *v);
static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image);
static TileIndex TrainApproachingCrossingTile(const Vehicle *v);
static void CheckNextTrainTile(Vehicle *v);
static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
@ -1892,6 +1893,9 @@ static void ReverseTrainDirection(Vehicle *v)
InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
}
/* Clear path reservation in front. */
FreeTrainTrackReservation(v);
/* Check if we were approaching a rail/road-crossing */
TileIndex crossing = TrainApproachingCrossingTile(v);
@ -1928,6 +1932,27 @@ static void ReverseTrainDirection(Vehicle *v)
/* maybe we are approaching crossing now, after reversal */
crossing = TrainApproachingCrossingTile(v);
if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
/* If we are inside a depot after reversing, don't bother with path reserving. */
if (v->u.rail.track & TRACK_BIT_DEPOT) return;
/* TrainExitDir does not always produce the desired dir for depots and
* tunnels/bridges that is needed for UpdateSignalsOnSegment. */
DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
/* If we are currently on a tile with conventional signals, we can't treat the
* current tile as a safe tile or we would enter a PBS block without a reservation. */
bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
!IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
if (TryPathReserve(v, true, first_tile_okay)) {
/* Do a look-ahead now in case our current tile was already a safe tile. */
CheckNextTrainTile(v);
}
}
}
/** Reverse train.