圆的碰撞检测_ci

bool CollisionBetweenCircles(circle c1,circle c2)
{
    bool hit;
    float distanceOfCenter=sqrt(pow((c1.center.x-c2.center.x),2)+
                                pow((c1.center.y-c2.center.y),2));
    float distanceOfRadius=c1.radius+c2.radius;
    if(distanceOfCenter<=distanceOfRadius)
    {
        hit=true;
    }
    else
    {
        hit=false;
    }
    return hit;
}