public override bool collidesWithShape( Shape other, out CollisionResult result )
{
// special, high-performance cases. otherwise we fall back to Polygon.
if( other is Box )
return ShapeCollisions.boxToBox( this, other as Box, out result );
// TODO: get Minkowski working for circle to box
//if( other is Circle )
// fallthrough to standard cases
return base.collidesWithShape( other, out result );
}
public override bool overlaps( Shape other )
{
// special, high-performance cases. otherwise we fall back to Polygon.
if( other is Box )
return bounds.intersects( ref ( other as Box ).bounds );
if( other is Circle )
return Collisions.rectToCircle( ref bounds, other.position, ( other as Circle ).radius );
// fallthrough to standard cases
return base.overlaps( other );
}
public override bool collidesWithShape( Shape other, out CollisionResult result )
{
if( other is Box )
return ShapeCollisions.circleToBox( this, other as Box, out result );
if( other is Circle )
return ShapeCollisions.circleToCircle( this, other as Circle, out result );
if( other is Polygon )
return ShapeCollisions.circleToPolygon( this, other as Polygon, out result );
throw new NotImplementedException( string.Format( "Collisions of Circle to {0} are not supported", other ) );
}
public override bool overlaps( Shape other )
{
CollisionResult result;
// Box is only optimized for unrotated
if( other is Box && ( other as Box ).isUnrotated )
return Collisions.rectToCircle( ref other.bounds, position, radius );
if( other is Circle )
return Collisions.circleToCircle( position, radius, other.position, ( other as Circle ).radius );
if( other is Polygon )
return ShapeCollisions.circleToPolygon( this, other as Polygon, out result );
throw new NotImplementedException( string.Format( "overlaps of Circle to {0} are not supported", other ) );
}
public override bool collidesWithShape( Shape other, out CollisionResult result )
{
if( other is Polygon )
return ShapeCollisions.polygonToPolygon( this, other as Polygon, out result );
if( other is Circle )
{
if( ShapeCollisions.circleToPolygon( other as Circle, this, out result ) )
{
result.invertResult();
return true;
}
return false;
}
throw new NotImplementedException( string.Format( "overlaps of Polygon to {0} are not supported", other ) );
}
/// <summary>
/// swept collision check
/// </summary>
/// <param name="first">First.</param>
/// <param name="second">Second.</param>
/// <param name="deltaMovement">Delta movement.</param>
/// <param name="hit">Hit.</param>
public static bool collide( Shape first, Shape second, Vector2 deltaMovement, out RaycastHit hit )
{
hit = new RaycastHit();
throw new NotImplementedException( "this should probably be in each Shape class and it still needs to be implemented ;)" );
}
public abstract bool collidesWithShape( Shape other, out CollisionResult result );
public abstract bool overlaps( Shape other );
