first commit

assets/seripts/components/LineControl.ts

@@ -0,0 +1,52 @@
+import { _decorator, Collider2D, Component, Contact2DType, Node } from "cc";
+import { GlobalData } from "../config/GlobalData";
+import { GameState } from "../config/Config";
+import { NoteControl } from "./NoteControl";
+import { EventDispatcher } from "../libs/EventDispatcher";
+const { ccclass, property } = _decorator;
+
+@ccclass("LineControl")
+export class LineControl extends Component {
+  start() {
+    // 监听碰撞事件
+    this.node
+      .getComponent(Collider2D)
+      .on(Contact2DType.BEGIN_CONTACT, this.onCollisionEnter, this);
+  }
+
+  onCollisionEnter(selfCollider: Collider2D, otherCollider: Collider2D) {
+    // 如果游戏状态不是进行中，直接返回
+    if (GlobalData.gameState != GameState.PLAYING) {
+      return;
+    }
+
+    if (otherCollider.tag == 2) {
+      // 1. 剩余生命值减 1
+      GlobalData.lifeNumPerRound--;
+
+      // 2. 剩余生命值是否大于等于0
+      if (GlobalData.lifeNumPerRound >= 0) {
+        // 触发音符碰到线事件
+        EventDispatcher.getTarget().emit(EventDispatcher.UPDATE_LIFE);
+      }
+      // 3. 如果小于0，游戏结束
+      if (GlobalData.lifeNumPerRound < 0) {
+        GlobalData.gameState = GameState.GAME_OVER;
+        // 调用 NoteControl 中的 pause 方法暂停音符
+        otherCollider.getComponent(NoteControl).noteHitLine();
+        // 发送游戏结束事件
+        EventDispatcher.getTarget().emit(EventDispatcher.GAME_OVER);
+      } else {
+        GlobalData.gameState = GameState.PAUSED;
+        otherCollider.getComponent(NoteControl).noteHitLine();
+        // 发送暂停事件
+        EventDispatcher.getTarget().emit(EventDispatcher.GAME_PAUSE);
+      }
+      // 4. 如果剩余生命值大于等于0，继续游戏（弹出暂停界面）
+
+      // 线碰到了音符
+    }
+  }
+
+  update(deltaTime: number) {}
+}