private void GizmoRotateEvent(Actor transformable, TransformationEventArgs e)
{
gizmo.RotationHelper(transformable, e);
}
private void GizmoScaleEvent(Actor transformable, TransformationEventArgs e)
{
Vector3 delta = (Vector3)e.Value;
if (gizmo.ActiveMode == GizmoMode.UniformScale)
transformable.Scale *= 1 + ((delta.X + delta.Y + delta.Z) / 3);
else
transformable.Scale += delta;
transformable.Scale = Vector3.Clamp(transformable.Scale, Vector3.Zero, transformable.Scale);
}
/// <summary>
/// Helper function to apply rotation to objects using the built-in method.
/// </summary>
public void RotationHelper(Actor entity, TransformationEventArgs e)
{
Vector3 pos = _position;
if (ActivePivot == PivotType.ObjectCenter)
pos = entity.Position;
Matrix localRot = Matrix.Identity;
localRot.Forward = entity.Forward;
localRot.Up = entity.Up;
localRot.Right = Vector3.Cross(entity.Forward, entity.Up);
localRot.Right.Normalize();
localRot.Translation = entity.Position - pos;
Matrix newRot = localRot * (Matrix)e.Value;
entity.Forward = newRot.Forward;
entity.Up = newRot.Up;
entity.Position = newRot.Translation + pos;
}