using StgSharp.Entity;
using StgSharp.Logic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp.Geometry
{
    public class PointOnCircle :LinkedObject, IPoint
    {
        private Circle _bindedItem;

        public Circle geometryItem
        {
            get { return _bindedItem; }
            set { _bindedItem = value; }
        }

        protected float _x;

        public float X
        {
            get { return _x; }
            set { _x = value; }
        }

        protected float _y;

        public float Y
        {
            get { return _y; }
            set { _y = value; }
        }

        private float _angle0;
        private float _angle;

        public float Angle
        {
            get { return _angle; }
            set { _angle = value; }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="c">点所在的圆</param>
        /// <param name="angle">点的初项</param>
        /// <param name="counts">阵列次数</param>
        /// <param name="gameTick">游戏刻计数器</param>
        public PointOnCircle(Circle c, float angle, uint counts)
        {
            _bindedItem = c;
            _angle0 = (angle + counts * (360.0f / counts)) * (float)(2 * Math.PI / 360);
        }

        
        public void OnRender()
        {
            _angle = _angle0 + _bindedItem.Angle;
            this._x = (float)(_bindedItem.Center.X + _bindedItem.Radius * Math.Cos(_angle));
            this._y = (float)(_bindedItem.Center.X + _bindedItem.Radius * Math.Sin(_angle));
        }




        
    }
}