/// <summary>
/// Return true if the object is in the given circle relative to a BehaviorEntity.
/// </summary>
/// <param name="beh">Target BehaviorEntity</param>
/// <param name="circ">Relative circle</param>
/// <returns></returns>
public static ExPred RelCirc(BEHPointer beh, ExTP3 circ)
{
return(bpi => CollisionMath.pointInCircle.Of(
Ex.Subtract(bpi.loc, LBEH(beh)),
Ex.Convert(circ(bpi), typeof(CCircle))
));
}
/// <summary>
/// Return true if the object is in the given rectangle relative to a BehaviorEntity.
/// </summary>
/// <param name="beh">Target BehaviorEntity</param>
/// <param name="rect">Relative rectangle</param>
/// <returns></returns>
public static ExPred RelRect(BEHPointer beh, CRect rect)
{
return(bpi => CollisionMath.pointInRect.Of(
Ex.Subtract(bpi.loc, LBEH(beh)),
ExC(rect)
));
}
public static TEx <Vector2> LBEH(BEHPointer beh) => Ex.Constant(beh).Field("beh").Field("BPI").Field("loc");
