feat: add Scene types and BaseScene abstract class

src/scene/BaseScene.ts

@@ -0,0 +1,34 @@
+import { Container, Ticker } from "pixi.js";
+import { SceneType } from "@/enums/SceneType";
+import type { IBaseScene, SceneLifeCycle } from "./types";
+
+export abstract class BaseScene implements IBaseScene {
+  abstract stage: Container;
+  readonly name: string;
+  readonly type: SceneType;
+
+  _assetsLoaded: boolean = false;
+  _layoutDone: boolean = false;
+
+  constructor(name: string, type: SceneType = SceneType.Normal) {
+    this.name = name;
+    this.type = type;
+  }
+
+  // 用于注入场景切换方法
+  changeScene(name: string, options?: { isHolderLast?: boolean }): void {
+    // 由 SceneManager 注入实现
+    throw new Error("changeScene not injected by SceneManager");
+  }
+
+  // 生命周期方法 - 默认空实现
+  async loadBundle(): Promise<void> {}
+  async unLoadBundle(): Promise<void> {}
+  layout(): void | Promise<void> {}
+  onLoad(): void | Promise<void> {}
+  onUnLoad(): void | Promise<void> {}
+  update(dt: number, ticker: Ticker): void {}
+  lateUpdate(dt: number, ticker: Ticker): void {}
+}
+
+export default BaseScene;

src/scene/types.ts

@@ -0,0 +1,40 @@
+import { Container, Ticker } from "pixi.js";
+import { SceneType } from "@/enums/SceneType";
+
+export interface SceneConfig {
+  name: string;
+  type: SceneType;
+  stage: Container;
+}
+
+export interface SceneLifeCycle {
+  /** 加载资源包 */
+  loadBundle?(): Promise<void>;
+  /** 卸载资源包 */
+  unLoadBundle?(): Promise<void>;
+  /** 创建布局 */
+  layout?(): void | Promise<void>;
+  /** 场景加载完成 */
+  onLoad?(): void | Promise<void>;
+  /** 场景即将卸载 */
+  onUnLoad?(): void | Promise<void>;
+  /** 每帧更新 */
+  update?(dt: number, ticker: Ticker): void;
+  /** 更新后处理 */
+  lateUpdate?(dt: number, ticker: Ticker): void;
+}
+
+export interface IBaseScene extends SceneLifeCycle {
+  /** 场景容器 */
+  stage: Container;
+  /** 场景名称 */
+  readonly name: string;
+  /** 场景类型 */
+  readonly type: SceneType;
+  /** 是否已加载资源 */
+  _assetsLoaded: boolean;
+  /** 是否已布局 */
+  _layoutDone: boolean;
+  /** 改变场景 */
+  changeScene(name: string, options?: { isHolderLast?: boolean }): void;
+}