public static Vector3 GetCircleRandomPoint(float radius, Vector3 center, SpaceTypeEnum type)
{
Vector3 pos = new Vector3(0, 0, 0);
float range = Mathf.Sqrt(Random.Range(0.0f, 1.0f)) * radius;
float angle = Random.Range(0.0f, 1.0f) * Mathf.PI * 2;
if (type == SpaceTypeEnum.XY)
{
pos.x = Mathf.Cos(angle) * range + center.x;
pos.y = Mathf.Sign(angle) * range + center.y;
pos.z = center.z;
}
else if (type == SpaceTypeEnum.XZ)
{
pos.x = Mathf.Cos(angle) * range + center.x;
pos.z = Mathf.Sign(angle) * range + center.z;
pos.y = center.y;
}
else if (type == SpaceTypeEnum.YZ)
{
pos.z = Mathf.Cos(angle) * range + center.z;
pos.y = Mathf.Sign(angle) * range + center.y;
pos.x = center.x;
}
return(pos);
}
/// <summary>
/// 获取空间指定平面内圆形均匀随即分布点
/// </summary>
/// <param name="number"></param>
/// <param name="radius"></param>
/// <param name="offval"></param>
/// <returns></returns>
public static Vector3[] GetCircleRandomPoints(int number, float radius, Vector3 center, SpaceTypeEnum type)
{
Vector3[] array = new Vector3[number];
if (number < 2)
{
array[0] = center;
return(array);
}
for (int i = 0; i < number; i++)
{
array[i] = GetCircleRandomPoint(radius, center, type);
}
return(array);
}