Fix crash when executing `TileMap.map_pattern`

Validates the input reference.

1 files changed, 1 insertions, 0 deletions

diff --git a/scene/2d/tile_map.cpp b/scene/2d/tile_map.cpp
index 084a5a520d..2ad6476812 100644
--- a/scene/2d/tile_map.cpp
+++ b/scene/2d/tile_map.cpp
@@ -2104,6 +2104,7 @@ Ref<TileMapPattern> TileMap::get_pattern(int p_layer, TypedArray<Vector2i> p_coo
 }
 
 Vector2i TileMap::map_pattern(Vector2i p_position_in_tilemap, Vector2i p_coords_in_pattern, Ref<TileMapPattern> p_pattern) {
+	ERR_FAIL_COND_V(p_pattern.is_null(), Vector2i());
 	ERR_FAIL_COND_V(!p_pattern->has_cell(p_coords_in_pattern), Vector2i());
 
 	Vector2i output = p_position_in_tilemap + p_coords_in_pattern;