Beispiel #1
0
        /// <summary>
        /// 判断目标点,在夹角内,
        /// </summary>
        /// <param name="target">目标点</param>
        /// <param name="startPoint">起点</param>
        /// <param name="indir">起点出发的2个边界向量</param>
        /// <param name="outdir">起点出发的2个边界向量</param>
        /// <returns></returns>
        public static bool CheckPointInCorns(Float2 target, Float2 startPoint, Float2 indir, Float2 outdir)
        {
            Float2 diff = target - startPoint;

            if (diff == Float2.zero)
            {
                return(false);
            }

            float ret = Float2.Cross(outdir, diff) * Float2.Cross(indir.normalized, diff);

            if (ret < 0)
            {
                Float2 mid = indir.normalized + outdir.normalized;
                // 添加异常处理,防止在反方向
                if (Float2.Dot(diff, mid) < 0)
                {
                    return(false);
                }
                else
                {
                    return(true);
                }
            }
            else if (ret == 0)
            {
                if (Float2.Dot(diff, indir) <= 0)
                {
                    return(false);
                }

                if (indir.sqrMagnitude < diff.sqrMagnitude)
                {
                    return(true);
                }
                else
                {
                    return(false);
                }
            }
            return(false);
        }
Beispiel #2
0
 /// <summary>
 /// 垂直判断,考虑误差
 /// </summary>
 /// <param name="a"></param>
 /// <param name="b"></param>
 /// <returns></returns>
 public static bool CheckVertical(Float2 a, Float2 b)
 {
     return(System.Math.Abs(Float2.Dot(a, b)) < MathUtil.kEpsilon ? true : false);
 }