first commit

assets/seripts/libs/EventDispatcher.ts

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+import { _decorator, Component, EventTarget } from "cc";
+const { ccclass, property } = _decorator;
+
+const event_target = new EventTarget();
+
+export class EventDispatcher {
+  private static data: EventDispatcher;
+
+  // 小恐龙吃到音符事件
+  public static readonly DINO_EAT_NOTE = "dino_eat_note";
+  // 音符碰到线事件
+  public static readonly UPDATE_LIFE = "update_life";
+  // 开始游戏事件
+  public static readonly GAME_STAET = "game_start";
+
+  // 游戏结束事件
+  public static readonly GAME_OVER = "game_over";
+  // 游戏闯关成功事件
+  public static readonly PASS_LEVLE = "pass_levle";
+
+  // 暂停事件
+  public static readonly GAME_PAUSE = "game_pause";
+  // 继续游戏事件
+  public static readonly GAME_RESUME = "game_resume";
+  // 清除所有音符事件
+  public static readonly CLEAR_ALL_NOTE = "clear_all_note";
+  // 清楚可视区域的音符事件
+  public static readonly CLEAR_SCREEN_NOTE = "clear_screen_note";
+  // 移动小恐龙到线的位置事件
+  public static readonly MOVE_DINO_TO_LINE = "move_dino_to_line";
+  // 显示结果弹窗事件
+  public static readonly SHOW_RESULT_MODAL = "show_result_modal";
+  // 显示暂停弹窗事件
+  public static readonly SHOW_PAUSE_MODAL = "show_pause_modal";
+  // 显示继续游戏弹窗事件
+  public static readonly SHOW_CONTINUE_MODAL = "show_continue_modal";
+
+  static getTarget() {
+    if (EventDispatcher.data == null) {
+      EventDispatcher.data = new EventDispatcher();
+    }
+    return EventDispatcher.data.getEventTarget();
+  }
+
+  private getEventTarget(): EventTarget {
+    return event_target;
+  }
+}