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Fix #9875. Check for valid tile element before dereferencing

This commit is contained in:
duncanspumpkin 2019-08-17 11:02:14 +01:00
parent 748a6338a9
commit 486f13440f
1 changed files with 5 additions and 0 deletions
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5
src/openrct2/ride/TrackDesign.cpp
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@ -1648,6 +1648,11 @@ static bool track_design_place_ride(TrackDesign* td6, int16_t x, int16_t y, int1
TileElement* tile_element = map_get_first_element_at(tile.x >> 5, tile.y >> 5);
z = gTrackPreviewOrigin.z / 8;
z += (entrance.z == (int8_t)(uint8_t)0x80) ? -1 : entrance.z;
if (tile_element == nullptr)
{
_trackDesignPlaceCost = MONEY32_UNDEFINED;
return false;
}
do
{