@Override
protected void initialize(Application app) {
ed = getState(EntityDataState.class).getEntityData();
entities = ed.getEntities(Position.class, ModelType.class);
// Calculate how big min/max needs to be to incorporate
// the full view + margin at z = 0
Camera cam = app.getCamera();
float z = cam.getViewToProjectionZ(cam.getLocation().z);
Vector3f worldMin = cam.getWorldCoordinates(new Vector2f(0, 0), z);
Vector3f worldMax = cam.getWorldCoordinates(new Vector2f(cam.getWidth(), cam.getHeight()), z);
min = worldMin.addLocal(-margin, -margin, 0);
max = worldMax.addLocal(margin, margin, 0);
}
@Override
public void cleanup() {
entityData.close();
entityData = null; // cannot be reused
}