/** 动物移动数据类 */

import Util from "../util/Util";

const { ccclass } = cc._decorator;

@ccclass
export default class PastureData {
    /** 所有点字典 */
    private pointMap: Map<number, cc.Vec2> = new Map<number, cc.Vec2>();
    /** 可移动key数组 */
    private canMoveArr: Array<number> = new Array<number>();

    /** 不可移动key数组 */
    private noCanMoveArr: Array<number> = new Array<number>();

    setPointMap(index, point: cc.Vec2) {
        this.pointMap.set(index, point);
        this.setCanMove(index);
    }

    getCanMoveIndex(oldIndex = -1) {
        let len = this.canMoveArr.length;
        let i = Util.rnd(0, len - 1);
        let index = this.canMoveArr[i];
        this.setNoCanMove(index);
        if (oldIndex != -1) {
            this.setCanMove(oldIndex);
        }
        return index;
    }

    getCanMoveIndexPoint(index) {
        let point = this.pointMap.get(index);
        return point;
    }

    setCanMove(index) {
        let has = this.noCanMoveArr.indexOf(index)
        if (has != -1) {
            this.noCanMoveArr.splice(has, 1)
        }
        this.canMoveArr.push(index);
    }

    setNoCanMove(index) {
        let has = this.canMoveArr.indexOf(index)
        if (has != -1) {
            this.canMoveArr.splice(has, 1)
        }
        this.noCanMoveArr.push(index);
    }
}