DoomsdayRescue/assets/script/gameLogic/gameObject/gameObjectZIndexNodeRefresh.ts

const { ccclass } = cc._decorator;
/**层级更新显示类 */
@ccclass
export default class GameObjectZIndexNodeRefresh extends cc.Component {
    /**显示节点组 */
    private static nds: cc.Node[] = [];
    /**添加显示节点 */
    static addNode(nd: cc.Node) {
        this.nds.push(nd);
    }
    /**移除显示节点 */
    static removeNode(nd: cc.Node) {
        let index = this.nds.indexOf(nd);
        if (index >= 0) {
            this.nds.splice(index, 1);
        }
    }
    /**更新显示层级 */
    update() {
        let nds = GameObjectZIndexNodeRefresh.nds;
        for (let i = 0; i < nds.length - 1; i++) {
            for (let j = i + 1; j < nds.length; j++) {
                if (nds[i].y < nds[j].y) {
                    let temp = nds[i];
                    nds[i] = nds[j];
                    nds[j] = temp;
                }
            }
        }
        for (let i = 0; i < nds.length; i++) {
            nds[i].zIndex = i;
        }
    }
}