diff options
Diffstat (limited to 'yapf/follow_track.hpp')
| -rw-r--r-- | yapf/follow_track.hpp | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/yapf/follow_track.hpp b/yapf/follow_track.hpp index 8cc5f7451..2b22d4fe4 100644 --- a/yapf/follow_track.hpp +++ b/yapf/follow_track.hpp @@ -27,7 +27,7 @@ struct CFollowTrackT : public FollowTrack_t m_new_tile = INVALID_TILE; m_new_td_bits = TRACKDIR_BIT_NONE; m_exitdir = INVALID_DIAGDIR; - m_is_station = m_is_bridge = m_is_tunnel = false; + m_is_station = m_is_tunnel = false; m_tiles_skipped = 0; } @@ -60,9 +60,6 @@ protected: /** Follow the m_exitdir from m_old_tile and fill m_new_tile and m_tiles_skipped */ FORCEINLINE void FollowTileExit() { - m_is_station = m_is_bridge = m_is_tunnel = false; - m_tiles_skipped = 0; - // extra handling for tunnels in our direction if (IsTunnelTile(m_old_tile)) { DiagDirection tunnel_enterdir = GetTunnelDirection(m_old_tile); @@ -76,22 +73,11 @@ protected: } assert(ReverseDiagDir(tunnel_enterdir) == m_exitdir); } + // not a tunnel or station + m_is_tunnel = false; + m_tiles_skipped = 0; - // extra handling for bridge ramp in our direction - if (IsBridgeTile(m_old_tile)) { - DiagDirection bridge_enterdir = GetBridgeRampDirection(m_old_tile); - if (bridge_enterdir == m_exitdir) { - // we are entering the bridge ramp - m_new_tile = GetOtherBridgeEnd(m_old_tile); - uint32 bridge_length = GetBridgeLength(m_old_tile, m_new_tile); - m_tiles_skipped = bridge_length; - m_is_bridge = true; - return; - } - assert(ReverseDiagDir(bridge_enterdir) == m_exitdir); - } - - // normal or station tile, do one step + // normal or station tile TileIndexDiff diff = TileOffsByDir(m_exitdir); m_new_tile = TILE_ADD(m_old_tile, diff); @@ -162,7 +148,22 @@ protected: // rail transport is possible only on tiles with the same owner as vehicle if (IsRailTT() && GetTileOwner(m_new_tile) != m_veh->owner) { // different owner - return false; + if (IsBridgeTile(m_new_tile)) { + if (IsBridgeMiddle(m_new_tile)) { + // bridge middle has no owner - tile is owned by the owner of the under-bridge track + if (GetBridgeAxis(m_new_tile) != DiagDirToAxis(m_exitdir)) { + // so it must be under bridge track (and wrong owner) + return false; + } + // in the middle of the bridge - when we came here, it should be ok + } else { + // different owner, on the bridge ramp + return false; + } + } else { + // different owner, not a bridge + return false; + } } // rail transport is possible only on compatible rail types @@ -210,7 +211,7 @@ protected: m_new_td_bits = TrackdirToTrackdirBits(ReverseTrackdir(m_old_td)); m_exitdir = exitdir; m_tiles_skipped = 0; - m_is_tunnel = m_is_bridge = m_is_station = false; + m_is_tunnel = m_is_station = false; return true; } } @@ -244,10 +245,20 @@ public: int max_speed = INT_MAX; // no limit // for now we handle only on-bridge speed limit - if (!IsWaterTT() && IsBridgeTile(m_old_tile)) { - int spd = _bridge[GetBridgeType(m_old_tile)].speed; - if (IsRoadTT()) spd *= 2; - if (max_speed > spd) max_speed = spd; + if (IsBridgeTile(m_old_tile) && !IsWaterTT() && IsDiagonalTrackdir(m_old_td)) { + bool is_on_bridge = true; + if (IsBridgeMiddle(m_old_tile)) { + // get track axis + Axis track_axis = DiagDirToAxis(TrackdirToExitdir(m_old_td)); + // get under-bridge axis + Axis bridge_axis = GetBridgeAxis(m_old_tile); + if (track_axis != bridge_axis) is_on_bridge = false; + } + if (is_on_bridge) { + int spd = _bridge[GetBridgeType(m_old_tile)].speed; + if (IsRoadTT()) spd *= 2; + if (max_speed > spd) max_speed = spd; + } } // if min speed was requested, return it |