// Self
private static Vector2 GetSelfControlPoint(SelfControlPointMode mode, Vector2 point, Vector2 startingPoint, Vector2 startingSelfControlPoint)
{
switch (mode)
{
case SelfControlPointMode.None: return(point);
case SelfControlPointMode.Angle:
{
Vector2 selfControlPoint = Math.FootPoint(point, startingPoint, startingSelfControlPoint);
return(selfControlPoint);
}
case SelfControlPointMode.Length:
{
Vector2 startingSelfVector = startingSelfControlPoint - startingPoint;
Vector2 selfVector = point - startingPoint;
float startingSelfLength = startingSelfVector.Length();
float selfLength = selfVector.Length();
// Vector2 startingSelfUnit = startingSelfVector / startingSelfLength;
Vector2 selfUnit = selfVector / selfLength;
Vector2 selfControlPoint = startingPoint + startingSelfLength * selfUnit;
return(selfControlPoint);
}
}
return(point);
}
/// <summary>
/// It controls the transformation of node contol point.
/// </summary>
/// <param name="mode"> The mode. </param>
/// <param name="lengthMode"> The length mode. </param>
/// <param name="angleMode"> The angle mode. </param>
/// <param name="point"> The point. </param>
/// <param name="startingNoder"> The starting node. </param>
/// <param name="isLeftControlPoint"> <see cref="Node.LeftControlPoint"/> or <see cref="Node.RightControlPoint"/>. </param>
/// <returns> The controlled node. </returns>
public static void Controller(SelfControlPointMode mode, EachControlPointLengthMode lengthMode, EachControlPointAngleMode angleMode, Vector2 point, Node node, bool isLeftControlPoint = true)
{
Vector2 startingPoint = node.StartingPoint;
Vector2 startingSelfControlPoint = isLeftControlPoint ? node.StartingLeftControlPoint : node.StartingRightControlPoint;
Vector2 startingEachControlPoint = isLeftControlPoint ? node.StartingRightControlPoint : node.StartingLeftControlPoint;
Vector2 selfControlPoint = Node.GetSelfControlPoint(mode, point, startingPoint, startingSelfControlPoint);
Vector2 eachControlPoint = Node.GetEachControlPoint(lengthMode, angleMode, startingPoint, selfControlPoint - startingPoint, startingSelfControlPoint - startingPoint, startingEachControlPoint - startingPoint);
node.LeftControlPoint = isLeftControlPoint ? selfControlPoint : eachControlPoint;
node.RightControlPoint = isLeftControlPoint ? eachControlPoint : selfControlPoint;
}
