private void SimulatorView_MouseLeftButtonDown(object sender, MouseEventArgs e)
{
Vector2 point = new Vector2((float)(e.GetPosition(this).X), (float)(e.GetPosition(this).Y));
_pickedGeom = physicsSimulator.Collide(point);
if (_pickedGeom == null)
return;
//Remove it from canvas if it already exist. This is to prevent a bork with mouse events.
RemoveFixedLinearSpringBrush(_mouseSpringBrush);
if (_mousePickSpring != null && !_mousePickSpring.IsDisposed)
{
_mousePickSpring.Dispose();
_mousePickSpring = null;
}
_mousePickSpring = SpringFactory.Instance.CreateFixedLinearSpring(physicsSimulator, _pickedGeom.Body,
_pickedGeom.Body.GetLocalPosition(
point), point, 20, 10);
_mouseSpringBrush = AddFixedLinearSpringBrushToCanvas(_mousePickSpring);
}
public FixedLinearSpringBrush AddFixedLinearSpringBrushToCanvas(FixedLinearSpring spring)
{
FixedLinearSpringBrush fls = new FixedLinearSpringBrush();
fls.FixedLinearSpring = spring;
Children.Add(fls);
drawingList.Add(fls);
return fls;
}
public void RemoveFixedLinearSpringBrush(FixedLinearSpringBrush fls)
{
Children.Remove(fls);
drawingList.Remove(fls);
}