新手引导

src/store/gameStore.ts

@@ -82,7 +82,7 @@ class GameStore {
 
   addScore(s: number) {
     const score = this.gameInfo.score + s;
-    this.gameInfo.score = score;
+    this.gameInfo.score = Math.max(0, score);
     this.gameInfo.maxScore = Math.max(score, this.gameInfo.maxScore);
 
     const { levelCfg } = GameConfig;