/// <summary>
/// Determines if there is a collision between a circle and rectangle
/// </summary>
/// <param name="r">The bounding rectangle</param>
/// <param name="c">The bounding circle</param>
/// <returns>true for collision, false otherwise</returns>
public static bool Collides(BoundingRectangle r, BoundingCircle c)
{
BoundingPoint p = new BoundingPoint(MathHelper.Clamp(c.X, r.X, r.X + r.Width), MathHelper.Clamp(c.Y, r.Y, r.Y + r.Height));
return(Collides(c, p));
}
/// <summary>
/// Detects a collision between a rectangle and a point
/// </summary>
/// <param name="r">The rectangle</param>
/// <param name="p">The point</param>
/// <returns>true on collision, false otherwise</returns>
public static bool Collides(BoundingRectangle r, BoundingPoint p)
{
return(p.X >= r.X && p.X <= r.X + r.Width && p.Y >= r.Y && p.X <= r.Y + r.Width);
}
/// <summary>
/// Detects a collision between a circle and point
/// </summary>
/// <param name="c">the circle</param>
/// <param name="p">the point</param>
/// <returns>true on collision, false otherwise</returns>
public static bool Collides(BoundingCircle c, BoundingPoint p)
{
return(Math.Pow(c.Radius, 2) >= Math.Pow(c.X - p.X, 2) + Math.Pow(c.Y - p.Y, 2));
}
/// <summary>
/// Detects a collision between two points
/// </summary>
/// <param name="p1">the first point</param>
/// <param name="p2">the second point</param>
/// <returns>true when colliding, false otherwise</returns>
public static bool Collides(BoundingPoint p1, BoundingPoint p2)
{
return(p1.X == p2.X && p1.Y == p2.Y);
}
/// <summary>
/// Determines if this BoundingCircle collides with a BoundingPoint
/// </summary>
/// <param name="p">the bounding point</param>
/// <returns>true on collision, false otherwise</returns>
public bool CollidesWith(BoundingPoint p)
{
return(CollisionHelper.Collides(this, p));
}
/// <summary>
/// Determines if this BoundingPoint collides with another BoundingPoint
/// </summary>
/// <param name="o">the other bounding point</param>
/// <returns>true on collision, false otherwise</returns>
public bool CollidesWith(BoundingPoint o)
{
return(CollisionHelper.Collides(o, this));
}