/// <summary>
/// point是否在扇形范围内
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public bool ContainPoint(Vector3 point)
{
point.y = 0;
Vector3 line = point - m_center;
float dis = Vector3.SqrMagnitude(line) - m_radius * m_radius;
//如果角度为0, 我们就只判断距离
if (m_angle <= 0)
{
return(dis <= m_radius * m_radius);
}
//距离太远在圆形外
if (dis > 0)
{
return(false);
}
float startAngle = m_centerAngle - m_angle * 0.5f;
float endAngle = m_centerAngle + m_angle * 0.5f;
float targetAngle = CMathUtil.GetVec3AngleInXZ(line);
return(targetAngle > startAngle && targetAngle < endAngle);
}
/// <summary>
/// 设置扇形中心线
/// </summary>
/// <param name="direction"></param>
public void SetDirection(Vector3 direction)
{
m_direction = direction;
m_direction.y = 0;
m_centerAngle = CMathUtil.GetVec3AngleInXZ(m_direction);
}