laya 武器旋转砍怪判断

typescript代码:

export interface IMonster extends Laya.Node {id: number;isDie:boolean;getPoint(): Laya.Point;getHitRect():Laya.Rectangle;
}export class Monster extends Laya.Sprite implements IMonster {private _isDie: boolean;private _id: number;constructor(id: number) {this._id = id;}public get isDie(): boolean {return this._isDie;}getPoint(): Laya.Point {return new Laya.Point(this.x, this.y);}getHitRect(): Laya.Rectangle {// 固定为原始矩形//let x = this.x - this.width * this.anchorX;//let y = this.y - this.height * this.anchorY;//return new Laya.Rectangle(x , y, this.width, this.height);// 动态的边界return this.getBounds();}
}export class Player {let monsterIds: number[] = [];// 检查圆圈是否击中怪物(武器绕着玩家旋转, 空心圆圈)
    checkCircleHitMonsters() {for (let monsterId in monsterList) {let monster: IMonster = monsterList[monsterId];let pos: Laya.Point = monster.getPoint();// 计算玩家中心点与怪物中心点之间的夹角let hitAngle = Math.atan2(this.y - pos.y, this.x - pos.x);let halfWidth = this.width * 0.5;let halfHeight = this.height * 0.5;// 玩家中心点与怪物中心点之间的连线与玩家的边框矩形相交点(武器转圈, 击中怪物的点)let hitPoint = new Laya.Point();hitPoint.x = this.x - halfWidth * Math.cos(hitAngle);hitPoint.y = this.y - halfHeight * Math.sin(hitAngle);if (!monster.isDie) {if (monster.getHitRect().contains(hitPoint.x, hitPoint.y)) {// if (this.hitTestPoint(hitPoint.x, hitPoint.y)) {monsterIds.push(monster.id); //所有的的被攻击到的id//播放受击动画什么的this._monsterCtrl.hitMonster(monster.id, this, hitPoint, hitAngle);}else {//停止播放受击动画this._monsterCtrl.outHitMonster(monster.id);}}}}// 如果是实心圆圈的符文, 只要使用符文hitTestPoint(怪物坐标)来检测// 如果是激光, 一根或多根时, 可以额外放对应数量的条状图对应相应的激活, 条隐藏, 不显示(如果激光旋转, 可以在onframe里面把条跟随旋转), 然后使用这些条来检测与怪物的碰撞// 子弹类就是每帧检测判断有没击中怪
}