/// <summary>
///
/// </summary>
/// <param name="gameObject"></param>
/// <param name="parentGameObject"></param>
public void addGameObject(IGameObject gameObject, IGameObject parentGameObject)
{
Debug.Assert(gameObject != parentGameObject, "a gameObject cannot be the parent of himself.");
SceneNode targetSceneNode = SceneNode.getSceneNodeByGameObject(this.sceneNodeTree, parentGameObject);
Debug.Assert(targetSceneNode != null, "no specified parentGameObject found in SceneNode tree");
//set position relative to the parent.
if (parentGameObject != null)
{
double xPositionRelativeToParent = parentGameObject.getXPosition() + gameObject.getXPosition();
double yPositionRelativeToParent = parentGameObject.getYPosition() + gameObject.getYPosition();
gameObject.setPosition(xPositionRelativeToParent, yPositionRelativeToParent);
}
//update the geometry position relative to the gameObject position.
if (gameObject.getBoundingBoxGeometry() != null)
{
gameObject.getBoundingBoxGeometry().Transform = new TranslateTransform(gameObject.getXPosition(), gameObject.getYPosition());
}
targetSceneNode.addChild(new SceneNode(gameObject));
this.registerGameObject(gameObject, this.gameObjectListMapByTag);
}