/**
 * 游戏工具类
 * @description 依据引擎Api的工具类，用于操作引擎相关系统的开关、操作引擎相关的api属性，比如坐标
 * @author 冯聪
 */
export default class GameUtil {

    /** 获取屏幕尺寸 */
    public getWinSize(): cc.Size {
        return cc.winSize;
    }

    /** 激活物理系统 */
    public enablePhysics() {
        cc.director.getPhysicsManager().enabled = true;
    }

    /** 绘制物理信息 */
    public debugDrawPhysicsFlag(ifDraw: boolean = false) {
        if (ifDraw) {
            cc.director.getPhysicsManager().debugDrawFlags =
                cc.PhysicsManager.DrawBits.e_aabbBit |
                cc.PhysicsManager.DrawBits.e_jointBit |
                cc.PhysicsManager.DrawBits.e_shapeBit;
        }
        else {
            cc.director.getPhysicsManager().debugDrawFlags = 0;
        }
    }

    private btnTimeDic: Object;
    /**给按钮做连续点击检测
     * @param btn 点击的按钮
     * @param delay 按钮连续点击间隔，delay间隔内不能连续点击
     * @return true 可以点击
     */
	public checkContinuousClick(btn:cc.Node, delay: number = 1): boolean {
		if (this.btnTimeDic == null) {
			this.btnTimeDic = {};
		}
		let key = (btn as any)._id;
		let last: number = this.btnTimeDic[key];
		let now: number = new Date().getTime();
		var b = last == null || now - last > delay * 1000;
		if (b) {
			this.btnTimeDic[key] = now;
		}
		return b;
	}

    /**
     * 获取世界坐标
     * @param 需要获取的节点
     */
    public getWorldPos(node: cc.Node): cc.Vec2 {
        let originX = node.x;
        let originY = node.y;
        let curNode = node;

        while (curNode.parent) {
            let parent = curNode.parent;
            if (parent.name == 'Canvas') {
                break;
            }
            originX += parent.x;
            originY += parent.y;
            curNode = parent;
        }
        return new cc.Vec2(originX, originY);
    }

    /** node的坐标改为全局坐标 中间为原点 */
    public localConvertWorldPointARCenter(node: cc.Node) {
        let o1 = cc.view.getVisibleSize();
        let o2 = node.convertToWorldSpaceAR(cc.v2(0, 0));
        o2.x = o2.x - o1.width / 2;
        o2.y = o2.y - o1.height / 2;
        return o2;
    }
}