刘宇飞
d393302388
Adds level prefabs, theme assets, audio, extensions, and deployment scripts for the Unity WebGL migration. Co-authored-by: Cursor <cursoragent@cursor.com>
83 lines
3.2 KiB
TypeScript
83 lines
3.2 KiB
TypeScript
import { Sprite, UITransform, Node, view, Layers, director, find } from 'cc';
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import { normalizeTexturePath } from '../visual/EntityTextureResolver';
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import { VisualAssets } from '../visual/VisualAssets';
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import { getThemeBackground } from './ThemeRegistry';
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const BG_NODE_NAME = 'LevelThemeBackground';
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/** 与主关卡 UI_2D、HUD UI_3D 分离，由 BgCamera 固定渲染 */
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const BG_LAYER = Layers.Enum.DEFAULT;
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/** 按关卡 theme 应用背景图（BgOverlay + BgCamera，不随主相机缩放/拖拽） */
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export class ThemeBackground {
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static resolveHost(entrance: Node | null): Node | null {
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const scene = entrance?.scene ?? director.getScene();
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if (!scene) return null;
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return find('BgOverlay', scene);
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}
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/** 移除误挂在 GameRoot / MainLevelEntrance 等处的旧背景节点 */
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static purgeStaleNodes(entrance: Node | null) {
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const scene = entrance?.scene ?? director.getScene();
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if (!scene) return;
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const host = find('BgOverlay', scene);
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const walk = (node: Node) => {
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for (const ch of [...node.children]) {
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if (ch.name === BG_NODE_NAME && ch.parent !== host) {
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ch.destroy();
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} else {
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walk(ch);
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}
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}
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};
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walk(scene);
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}
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static async apply(entrance: Node | null, themeId: string | undefined): Promise<void> {
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const parent = this.resolveHost(entrance);
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if (!parent?.isValid) return;
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this.purgeStaleNodes(entrance);
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const path = normalizeTexturePath(getThemeBackground(themeId));
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let bgNode = parent.getChildByName(BG_NODE_NAME);
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if (!path) {
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if (bgNode) bgNode.active = false;
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return;
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}
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if (!bgNode) {
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bgNode = new Node(BG_NODE_NAME);
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bgNode.parent = parent;
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bgNode.addComponent(UITransform);
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bgNode.addComponent(Sprite);
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}
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bgNode.layer = BG_LAYER;
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bgNode.active = true;
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bgNode.setSiblingIndex(0);
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bgNode.setPosition(0, 0, 0);
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bgNode.setScale(1, 1, 1);
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const sf = await VisualAssets.loadTexturePath(path);
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if (!sf || !bgNode?.isValid) return;
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const ui = bgNode.getComponent(UITransform)!;
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const spr = bgNode.getComponent(Sprite)!;
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spr.spriteFrame = sf;
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spr.sizeMode = Sprite.SizeMode.CUSTOM;
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this.layoutFullScreen(bgNode, sf);
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}
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private static layoutFullScreen(bgNode: Node, sf: NonNullable<Awaited<ReturnType<typeof VisualAssets.loadTexturePath>>>) {
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const ui = bgNode.getComponent(UITransform)!;
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const vs = view.getVisibleSize();
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const scale = Math.max(vs.width / sf.originalSize.width, vs.height / sf.originalSize.height);
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ui.setContentSize(sf.originalSize.width * scale, sf.originalSize.height * scale);
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ui.setAnchorPoint(0.5, 0.5);
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bgNode.setPosition(0, 0, 0);
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}
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static clear(entrance: Node | null) {
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this.purgeStaleNodes(entrance);
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const parent = this.resolveHost(entrance);
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const bgNode = parent?.getChildByName(BG_NODE_NAME);
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if (bgNode) bgNode.active = false;
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}
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}
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