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-rw-r--r--src/yapf/yapf_destrail.hpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/yapf/yapf_destrail.hpp b/src/yapf/yapf_destrail.hpp
index 5b44d805c..10233cda1 100644
--- a/src/yapf/yapf_destrail.hpp
+++ b/src/yapf/yapf_destrail.hpp
@@ -95,8 +95,16 @@ public:
case OT_GOTO_WAYPOINT: {
Waypoint *wp = GetWaypoint(v->current_order.dest);
- if (wp == NULL) break;
+ if (wp == NULL) {
+ /* Invalid waypoint in orders! */
+ DEBUG(yapf, 0, "Invalid waypoint in orders == 0x%04X (train %d, player %d)", v->current_order.dest, v->unitnumber, (PlayerID)v->owner);
+ break;
+ }
m_destTile = wp->xy;
+ if (m_destTile != v->dest_tile) {
+ /* Something is wrong with orders! */
+ DEBUG(yapf, 0, "Invalid v->dest_tile == 0x%04X (train %d, player %d)", v->dest_tile, v->unitnumber, (PlayerID)v->owner);
+ }
m_dest_station_id = INVALID_STATION;
m_destTrackdirs = TrackToTrackdirBits(AxisToTrack(GetWaypointAxis(wp->xy)));
break;