diff options
Diffstat (limited to 'src/pathfinder/npf')
| -rw-r--r-- | src/pathfinder/npf/npf.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/pathfinder/npf/npf.cpp b/src/pathfinder/npf/npf.cpp index 0432ba6ff..4a5979542 100644 --- a/src/pathfinder/npf/npf.cpp +++ b/src/pathfinder/npf/npf.cpp @@ -66,6 +66,7 @@ enum NPFNodeFlag { NPF_FLAG_3RD_SIGNAL, ///< Used to mark that three signals were seen, rail only NPF_FLAG_REVERSE, ///< Used to mark that this node was reached from the second start node, if applicable NPF_FLAG_LAST_SIGNAL_RED, ///< Used to mark that the last signal on this path was red + NPF_FLAG_LAST_SIGNAL_BLOCK, ///< Used to mark that the last signal on this path was a block signal NPF_FLAG_IGNORE_START_TILE, ///< Used to mark that the start tile is invalid, and searching should start from the second tile on NPF_FLAG_TARGET_RESERVED, ///< Used to mark that the possible reservation target is already reserved NPF_FLAG_IGNORE_RESERVED, ///< Used to mark that reserved tiles should be considered impassable @@ -272,7 +273,7 @@ static uint NPFReservedTrackCost(AyStarNode *current) TrackBits track = TrackToTrackBits(TrackdirToTrack(current->direction)); TrackBits res = GetReservedTrackbits(tile); - if (NPFGetFlag(current, NPF_FLAG_3RD_SIGNAL) || ((res & track) == TRACK_BIT_NONE && !TracksOverlap(res | track))) return 0; + if (NPFGetFlag(current, NPF_FLAG_3RD_SIGNAL) || NPFGetFlag(current, NPF_FLAG_LAST_SIGNAL_BLOCK) || ((res & track) == TRACK_BIT_NONE && !TracksOverlap(res | track))) return 0; if (IsTileType(tile, MP_TUNNELBRIDGE)) { DiagDirection exitdir = TrackdirToExitdir(current->direction); @@ -463,6 +464,7 @@ static int32 NPFRailPathCost(AyStar *as, AyStarNode *current, OpenListNode *pare /* Check for signals */ if (IsTileType(tile, MP_RAILWAY)) { if (HasSignalOnTrackdir(tile, trackdir)) { + SignalType sigtype = GetSignalType(tile, TrackdirToTrack(trackdir)); /* Ordinary track with signals */ if (GetSignalStateByTrackdir(tile, trackdir) == SIGNAL_STATE_RED) { /* Signal facing us is red */ @@ -471,7 +473,6 @@ static int32 NPFRailPathCost(AyStar *as, AyStarNode *current, OpenListNode *pare * encounter, if it is red */ /* Is this a presignal exit or combo? */ - SignalType sigtype = GetSignalType(tile, TrackdirToTrack(trackdir)); if (!IsPbsSignal(sigtype)) { if (sigtype == SIGTYPE_EXIT || sigtype == SIGTYPE_COMBO) { /* Penalise exit and combo signals differently (heavier) */ @@ -496,6 +497,7 @@ static int32 NPFRailPathCost(AyStar *as, AyStarNode *current, OpenListNode *pare } else { NPFSetFlag(current, NPF_FLAG_SEEN_SIGNAL, true); } + NPFSetFlag(current, NPF_FLAG_LAST_SIGNAL_BLOCK, !IsPbsSignal(sigtype)); } if (HasPbsSignalOnTrackdir(tile, ReverseTrackdir(trackdir)) && !NPFGetFlag(current, NPF_FLAG_3RD_SIGNAL)) { |