/// <summary>
/// Detects a collision between a rectangle and a circle
/// </summary>
/// <param name="c"></param>
/// <param name="r"></param>
/// <returns></returns>
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));
}
/// <summary>
/// Test for a collision between this and another BoundingCircle
/// </summary>
/// <param name="other">The other bounding Circle</param>
/// <returns>true for a collision</returns>
public bool CollidesWith(BoundingCircle other)
{
return(CollisionHelper.Collides(this, other));
}
public static bool Collides(BoundingRectangle r, BoundingCircle c) => Collides(c, r);
/// <summary>
/// Detects collision between two BoundingCircles
/// </summary>
/// <param name="a">The first BoudningCircle</param>
/// <param name="b">The second BoudningCircle</param>
/// <returns></returns>
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));
}