public override void ChangeState(DrawingState state)
{
foreach (DrawingObject drawingObject in drawingGroups)
{
drawingObject.ChangeState(state);
}
this.state = state;
}
public static DrawingState GetInstance()
{
if (instance == null)
{
instance = new PolygonDrawState();
}
return(instance);
}
public void ChangeState(DrawingState state)
{
this.state = state;
}