84 lines
2.0 KiB
TypeScript
84 lines
2.0 KiB
TypeScript
import { ReactiveScene } from "./ReactiveScene";
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export interface FadeSceneData {
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[key: string]: unknown;
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}
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/**
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* 处理淡入淡出到黑色的过渡场景
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*/
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export class FadeScene extends ReactiveScene<FadeSceneData> {
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private overlay!: Phaser.GameObjects.Rectangle;
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private isFading = false;
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constructor() {
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super(FADE_SCENE_KEY);
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}
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create(): void {
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super.create();
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// 创建黑色遮罩层，覆盖整个游戏区域
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const game = this.game;
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this.overlay = this.add
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.rectangle(0, 0, game.scale.width, game.scale.height, 0x000000, 1)
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.setOrigin(0)
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.setAlpha(1)
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.setDepth(999999)
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.setInteractive({ useHandCursor: false });
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// 防止遮罩阻挡输入
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this.overlay.disableInteractive();
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}
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/**
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* 淡入（从黑色到透明）
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* @param duration 动画时长（毫秒）
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*/
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fadeIn(duration = 300): Promise<void> {
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return this.fadeTo(0, duration);
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}
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/**
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* 淡出（从透明到黑色）
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* @param duration 动画时长（毫秒）
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*/
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fadeOut(duration = 300): Promise<void> {
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return this.fadeTo(1, duration);
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}
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/**
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* 淡入淡出到指定透明度
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*/
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private fadeTo(targetAlpha: number, duration: number): Promise<void> {
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// 如果 overlay 还未初始化，直接返回 resolved promise
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if (!this.overlay) {
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console.warn("FadeScene: overlay 未初始化，跳过过渡动画");
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return Promise.resolve();
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}
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if (this.isFading) {
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console.warn("FadeScene: 正在进行过渡动画");
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}
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this.isFading = true;
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this.overlay.setAlpha(targetAlpha === 1 ? 0 : 1);
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return new Promise<void>((resolve) => {
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this.tweens.add({
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targets: this.overlay,
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alpha: targetAlpha,
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duration,
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ease: "Linear",
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onComplete: () => {
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this.isFading = false;
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resolve();
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},
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});
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});
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}
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}
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// 导出常量供 PhaserGame 使用
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export const FADE_SCENE_KEY = "__fade__";
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