The Infamous Scene Loading/Menu System/Camera Bug! All TX2D community members needed!

This seems to be a plague among the TX2D and the TXPSK forums. The changing of scenes!

I’ve recently purchased the Platform Starter Kit and began dissecting it. I wanted to add aframework in first, such as a functioning menu system and level changing functionality as this added in later can cause huge problems!

I have managed to get a menu working based on Henry's Game kit code, Dro Sarhadian's splash screen tutorial and the PSK demo. Well at least to the point where the scene is loaded.

Initially I received this error in the DrillActorComponent.cs file:

System.NullReferenceException was unhandled
return Vector2.Distance(_actor.Position, (SceneObject.SceneGraph.Camera as T2DSceneCamera).Position);

So I began dissecting further, I used the exited demo_modified scene file and removed everything bar the character, the tile maps and the sky. I also a entered a camera name in the camera rollout box in the editor.

I saved and rebuilt the game.

Another error in the ActorAnimationManager.cs file:

System.NullReferenceException was unhandled

float distance = Vector2.Distance((_actorComponent.SceneObject.SceneGraph.Camera as T2DSceneCamera).Position, _actorComponent._animatedSprite.Position);

So I soldiered on dissecting a little more and commented these lines out.

It worked! Here is the code I used to load in the level.

Game.Instance.SceneLoader.Load(@"datalevelsdemo_modified2.txscene");

// set the parallax manager's target object
T2DSceneCamera camera = TorqueObjectDatabase.Instance.FindObject<T2DSceneCamera>("Camera");
ParallaxManager.Instance.ParallaxTarget = camera;
_sceneGraph = camera.SceneGraph as T2DSceneGraph;


GUIStyle playStyle = new GUIStyle();
GUISceneview play = new GUISceneview();
play.Name = "PlayScreen";
play.Style = playStyle;
play.Camera = camera;

GUICanvas.Instance.SetContentControl(play);
PlatformerDemoGUI.Instance.GUI.Folder = GUICanvas.Instance;

Here’s a small vid just to show:



I know this isn’t perfect but I’m not a coder and was wondering if anyone had been investigating this? There are obvious issues with the camera being referenced and at first I though this was down to the scene file not saving the cameras name, so any reference made to it was null?

I think a coding Guru is needed to clear things up for us all!Hopefully this is a start, although you do loose some functionality from the PSK.