Collision

sprites.js

@@ -0,0 +1,10 @@
+const ufo = new Image();
+ufo.src = "sprites/ufo.png";
+
+const spriteData = {
+  "ufo": {}
+};
+ufo.onload = function () {
+  spriteData.ufo.width = this.width;
+  spriteData.ufo.height = this.height;
+}