refactor(map): replace main node显隐操作转为动画控制

将原来通过查找main节点手动控制显隐的逻辑，替换为新增的MapLayer动画启停方法，简化代码逻辑并统一动画管理方式

assets/script/game/map/view/map/layer/MapLayer.ts

@@ -18,7 +18,7 @@
  *
  * @author 落日故人 QQ 583051842
  */
-import { Component, Layers, Node, Sprite, SpriteFrame, Texture2D, UITransform, Vec3, _decorator } from 'cc';
+import { Animation, Component, Layers, Node, Sprite, SpriteFrame, Texture2D, UITransform, Vec3, _decorator } from 'cc';
 import { oops } from '../../../../../../../extensions/oops-plugin-framework/assets/core/Oops';
 import { LayerUtil } from '../../../../../../../extensions/oops-plugin-framework/assets/core/utils/LayerUtil';
 import { smc } from '../../../../common/SingletonModuleComp';
@@ -80,6 +80,25 @@ export default class MapLayer extends Component {
 		if (this.bgImg) {
 			return this.bgImg.getComponent(UITransform)!.height;
 		}
+	}
 
+	private get animations(): Animation[] {
+		return [this.bg_anm, this.bg_anm1, this.bg_anm2, this.bg_anm3, this.bg_anm4].filter((a): a is Animation => a !== null);
+	}
+
+	public playAnimations(name?: string): void {
+		this.animations.forEach(a => name ? a.play(name) : a.play());
+	}
+
+	public stopAnimations(): void {
+		this.animations.forEach(a => a.stop());
+	}
+
+	public pauseAnimations(): void {
+		this.animations.forEach(a => a.pause());
+	}
+
+	public resumeAnimations(): void {
+		this.animations.forEach(a => a.resume());
 	}
 }