public static bool Collides(BoundingCircle c, BoundingRectangle r)
{
float nearestX = MathHelper.Clamp(c.Center.X, r.Left, r.Right);
float nearestY = MathHelper.Clamp(c.Center.Y, r.Top, r.Bottom);
return(Math.Pow(c.Radius, 2) >=
Math.Pow(c.Center.X - nearestX, 2) +
Math.Pow(c.Center.Y - nearestY, 2));
}
public bool CollidesWith(BoundingCircle other)
{
return(CollisionHelper.Collides(other, this));
}
public static bool Collides(BoundingCircle a, BoundingCircle b)
{
return(Math.Pow(a.Radius + b.Radius, 2) >=
Math.Pow(a.Center.X - b.Center.X, 2) +
Math.Pow(a.Center.Y - b.Center.Y, 2));
}
public static bool Collides(BoundingRectangle r, BoundingCircle c)
{
return(CollisionHelper.Collides(c, r));
}