game_cocos_2c/assets/scripts/utils/ResHelper.ts

import { AppKernel } from "@scripts/app/AppKernel";
import { AssetSlot } from "@scripts/components/AssetSlot";
import { BUNDLE_ID } from "@scripts/define/ResDefine";
import { isValid, Sprite, SpriteFrame } from "cc";
import { ImgFitMode, setSpriteFitMode } from "./UIHelper";

const GoodsIconRes = "common/goodsIcon/img_icon";

interface ISetSpriteOptions {
    bundle?: string;
    fitMode?: ImgFitMode;
    onCheck?: () => boolean;
}

/**
 * 动态加载spriteFrame  path和bundle都是空 则为sprite.spriteFrame = null;
 * @param sprite 
 * @param path 
 * @param bundle 
 * @returns 
 */
export async function setSpriteFrame(sprite: Sprite, path?: string, optins?: ISetSpriteOptions) {
    const node = sprite.node;
    const bundle = optins?.bundle;
    const fitMode = optins?.fitMode;
    const onCheck = optins?.onCheck;
    const slot = node.getComponent(AssetSlot) || node.addComponent(AssetSlot);
    if (!path) {
        slot.changeAsset(null);
        sprite.spriteFrame = null;
        return;
    }

    let res: SpriteFrame = null;
    const resources = AppKernel.resources;
    if (path.startsWith("http")) {
        res = await resources.loadRemoteSp(path);
    } else {
        if (!path.endsWith("/spriteFrame")) path += "/spriteFrame";
        res = await resources.load(bundle || BUNDLE_ID.Lobby, path, SpriteFrame);
    }

    if (!res) return;
    if (!isValid(sprite)) {
        resources.releaseRes(res);
        return;
    }

    if (onCheck && !onCheck()) return;

    res.addRef();
    sprite.spriteFrame = res;
    setSpriteFitMode(sprite, fitMode);

    slot.changeAsset(res);
    return res;
}

export async function setGoodsIcon(sprite: Sprite, type: number, isGCOnly = false) {
    const iconPath = isGCOnly ? `${GoodsIconRes}gc` : `${GoodsIconRes}${type}`;
    return setSpriteFrame(sprite, `${iconPath}`);
}