Copy utils

src/index.ts

@@ -1,10 +1,36 @@
 import GameLoop from './game-loop/game-loop';
 import './styles/index.scss';
+import { applyArrayPlugins } from './utils/array';
+
+declare global {
+  interface Array<T> {
+    x: T;
+    y: T;
+  }
+
+  interface ReadonlyArray<T> {
+    x: T;
+    y: T;
+  }
+
+  interface Float32Array {
+    x: number;
+    y: number;
+  }
+}
+
+applyArrayPlugins();
+
+const errorContainer = document.querySelector('.errors');
 
 const main = () => {
-  const canvas = document.querySelector('canvas');
-  const game = new GameLoop(canvas);
-  game.start();
+  try {
+    const canvas = document.querySelector('canvas');
+    const game = new GameLoop(canvas);
+    game.start();
+  } catch (e) {
+    errorContainer.innerHTML = e.message;
+  }
 };
 
 main();