Take alpha into account when blitting patches

Rua · Apr 3, 2021 · c246614 · c246614
1 parent 1a4bfeb
commit c246614
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/doom/map/textures.rs b/src/doom/map/textures.rs
@@ -86,7 +86,11 @@ pub fn import_wall(
 					let src_index = (src_x + src_y_index) as usize;
 					let dest_index = (dest_x + dest_y_index) as usize;
 
-					data[dest_index] = patch.data[src_index];
+					let src_pixel = patch.data[src_index];
+
+					if src_pixel.a != 0 {
+						data[dest_index] = src_pixel;
+					}
 				}
 			}