save code

game/js/main.js

@@ -31,23 +31,26 @@ async function main() {
   }
 }
 
+// 防止双重启动
+let _started = false;
+function startGame(el) {
+  if (_started) return;
+  _started = true;
+  el.style.transition = 'opacity 0.8s';
+  el.style.opacity = '0';
+  setTimeout(() => { el.style.display = 'none'; }, 800);
+  main();
+}
+
 // 触摸启动（手机）
-document.getElementById('start').addEventListener('touchend', async function onStart(e) {
+document.getElementById('start').addEventListener('touchend', function(e) {
   e.preventDefault();
-  this.removeEventListener('touchend', onStart);
-  this.style.transition = 'opacity 0.8s';
-  this.style.opacity = '0';
-  setTimeout(() => { this.style.display = 'none'; }, 800);
-  await main();
+  startGame(this);
 }, { once: true });
 
 // 鼠标点击（电脑调试）
-document.getElementById('start').addEventListener('click', async function onClick() {
-  this.removeEventListener('click', onClick);
-  this.style.transition = 'opacity 0.8s';
-  this.style.opacity = '0';
-  setTimeout(() => { this.style.display = 'none'; }, 800);
-  await main();
+document.getElementById('start').addEventListener('click', function() {
+  startGame(this);
 }, { once: true });
 
 // 防止页面滚动/缩放