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Fix assertion failure when trams do a short turnaround in a tunnel mouth

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This commit is contained in:
Jonathan G Rennison
2017-12-13 20:44:12 +00:00
parent fe682e565f
commit 102c55bc57
1 changed files with 4 additions and 1 deletions
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5
src/tunnelbridge_cmd.cpp
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@@ -2137,6 +2137,8 @@ static const byte TUNNEL_SOUND_FRAME = 1;
*/
extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
extern const byte _tunnel_turnaround_pre_visibility_frame[DIAGDIR_END] = {31, 27, 27, 31};
static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
{
int z = GetSlopePixelZ(x, y) - v->z_pos;
@@ -2187,7 +2189,8 @@ static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex ti
if (rv->state != RVSB_WORMHOLE && dir == vdir) {
if (frame == _tunnel_visibility_frame[dir]) {
/* Frame should be equal to the next frame number in the RV's movement */
assert(frame == rv->frame + 1);
assert_msg(frame == rv->frame + 1 || rv->frame == _tunnel_turnaround_pre_visibility_frame[dir],
"frame: %u, rv->frame: %u, dir: %u, _tunnel_turnaround_pre_visibility_frame[dir]: %u", frame, rv->frame, dir, _tunnel_turnaround_pre_visibility_frame[dir]);
rv->tile = tile;
rv->cur_image_valid_dir = INVALID_DIR;
rv->state = RVSB_WORMHOLE;