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-rw-r--r--roadveh_cmd.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/roadveh_cmd.c b/roadveh_cmd.c
index 7a97722ce..6c3d27d69 100644
--- a/roadveh_cmd.c
+++ b/roadveh_cmd.c
@@ -494,9 +494,13 @@ static byte SetRoadVehPosition(Vehicle *v, int x, int y)
static void RoadVehSetRandomDirection(Vehicle *v)
{
- static const int8 _turn_prob[4] = { -1, 0, 0, 1 };
+ static const DirDiff delta[] = {
+ DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
+ };
+
uint32 r = Random();
- v->direction = (v->direction + _turn_prob[r & 3]) & 7;
+
+ v->direction = ChangeDir(v->direction, delta[r & 3]);
BeginVehicleMove(v);
UpdateRoadVehDeltaXY(v);
v->cur_image = GetRoadVehImage(v, v->direction);