Cubes Framework Physics Weirdness

User Code & Projects Cubes
1

I was looking into the Cubes plugin, and for some reason I can’t seem to get a collision control to work with it. I have 4 voxels and a box that falls on them as a test. The box falls right through.

[java]
public void simpleInitApp() {

    BulletAppState bulletAppState = new BulletAppState();
    stateManager.attach(bulletAppState);
    bulletAppState.getPhysicsSpace().enableDebug(assetManager);
    
    CubesTestAssets.registerBlocks();
    
    BlockTerrainControl blockTerrain = new BlockTerrainControl(CubesTestAssets.getSettings(this), new Vector3Int(1,1,1));
        blockTerrain.setBlock(new Vector3Int(0, 0, 0), Block_Wood.class);
        blockTerrain.setBlock(new Vector3Int(0, 0, 1), Block_Wood.class);
        blockTerrain.setBlock(new Vector3Int(1, 0, 0), Block_Wood.class);
        blockTerrain.setBlock(new Vector3Int(1, 0, 1), Block_Wood.class);
    Node terrainNode = new Node();
    terrainNode.addControl(blockTerrain);
    
    Geometry geom = initBox();
    geom.move(3, 10, 3);
    
    RigidBodyControl blockPhys1 = new RigidBodyControl(0f);
    RigidBodyControl blockPhys2 = new RigidBodyControl(2.0f);
    
    terrainNode.addControl(blockPhys1);
    geom.addControl(blockPhys2);
    
    bulletAppState.getPhysicsSpace().addAll(terrainNode);
    bulletAppState.getPhysicsSpace().add(blockPhys2);
    
    rootNode.attachChild(terrainNode);
    rootNode.attachChild(geom);
    
    for(int x = 0; x < terrainNode.getNumControls(); x++){
        System.out.println(terrainNode.getControl(x));
    }
    
    cam.setLocation(new Vector3f(-20, 20, 32));
    cam.lookAt(Vector3f.ZERO, Vector3f.UNIT_Y);
    flyCam.setMoveSpeed(50);
    
}

private Geometry initBox(){
    Box b = new Box(1, 1, 1);
    Geometry geom = new Geometry("Box", b);
    Material mat = new Material(assetManager,
      "Common/MatDefs/Misc/Unshaded.j3md");
    mat.setColor("Color", ColorRGBA.Blue);
    geom.setMaterial(mat);
    return(geom);
}[/java]

I’m sure it’s something obvious, but I sure can’t find it. Also, I’m not that experienced with physics in general, but shouldn’t enableDebug show the wireframes of the collidable objects? I guess it’s not because of the unshaded material.

2

My apologies, I finally found the solution in the original post for Cubes. I don’t think I can delete this post so I might as well show what I’ve found.

[java]blockTerrain.addChunkListener(new BlockChunkListener(){
public void onSpatialUpdated(BlockChunkControl blockChunk){
Geometry optimizedGeometry = blockChunk.getOptimizedGeometry_Opaque();
RigidBodyControl rigidBodyControl = optimizedGeometry.getControl(RigidBodyControl.class);
if(rigidBodyControl == null){
rigidBodyControl = new RigidBodyControl(0);
optimizedGeometry.addControl(rigidBodyControl);
bulletAppState.getPhysicsSpace().add(rigidBodyControl);
}
rigidBodyControl.setCollisionShape(new MeshCollisionShape(optimizedGeometry.getMesh()));
}
});[/java]

@destroflyer if you read this, thank you very very much for the plugin… Would you mind updating the documentation?