commit 0c52f5dab14d9e5689d70b9814e383e7ef59de06
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Wed Oct 6 23:25:51 2021 +0200

    Relax objectlib's requirements: it can be displayed not only on top of a DistortedScreen, but any DistortedFramebuffer.

diff --git a/src/main/java/org/distorted/main/RubikObjectLibInterface.java b/src/main/java/org/distorted/main/RubikObjectLibInterface.java
index 516a89bc..f8179235 100644
--- a/src/main/java/org/distorted/main/RubikObjectLibInterface.java
+++ b/src/main/java/org/distorted/main/RubikObjectLibInterface.java
@@ -31,7 +31,7 @@ import com.google.android.play.core.tasks.OnFailureListener;
 import com.google.android.play.core.tasks.Task;
 import com.google.firebase.analytics.FirebaseAnalytics;
 
-import org.distorted.library.main.DistortedScreen;
+import org.distorted.library.main.DistortedFramebuffer;
 import org.distorted.objectlib.helpers.ObjectLibInterface;
 import org.distorted.objectlib.main.ObjectControl;
 import org.distorted.objectlib.main.ObjectType;
@@ -332,7 +332,7 @@ public class RubikObjectLibInterface implements ObjectLibInterface
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-  public DistortedScreen getScreen()
+  public DistortedFramebuffer getFramebuffer()
     {
     RubikActivity act = mAct.get();
     return act.getScreen();
diff --git a/src/main/java/org/distorted/tutorials/TutorialObjectLibInterface.java b/src/main/java/org/distorted/tutorials/TutorialObjectLibInterface.java
index 227a25a0..ea36dce7 100644
--- a/src/main/java/org/distorted/tutorials/TutorialObjectLibInterface.java
+++ b/src/main/java/org/distorted/tutorials/TutorialObjectLibInterface.java
@@ -19,7 +19,8 @@
 
 package org.distorted.tutorials;
 
-import org.distorted.library.main.DistortedScreen;
+import org.distorted.library.main.DistortedFramebuffer;
+
 import org.distorted.objectlib.helpers.ObjectLibInterface;
 import org.distorted.objectlib.main.ObjectControl;
 import org.distorted.objectlib.main.ObjectType;
@@ -74,7 +75,7 @@ public class TutorialObjectLibInterface implements ObjectLibInterface
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-  public DistortedScreen getScreen()
+  public DistortedFramebuffer getFramebuffer()
     {
     TutorialActivity act = mAct.get();
     return act.getScreen();