Paralax overlapping fix

core/src/cz/nic/tablexia/screen/gamemenu/pages/GameMenuPage.java

@@ -26,9 +26,13 @@ public class GameMenuPage extends MenuPage implements ViewPager.ScrollListener {
     @Override
     public void draw(Batch batch, float parentAlpha) {
         // TODO solve image clipping for background layer and any moving slowlier than screen
-        batch.draw(getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.BACK)), getX()-(scrollOffset/2), getY(), getWidth(), getHeight());
+        Texture back = getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.BACK));
+        int srcX = (int) (back.getWidth() * Math.max(scrollOffset / 2, 0) / getWidth());
+        int srcWidth = (int) (back.getWidth() * (getWidth() - (Math.min(scrollOffset / 2, 0) + Math.max(0, (scrollOffset)))) / getWidth());
+        batch.draw(back, getX() - Math.min(scrollOffset / 2, 0), getY(), getWidth() - Math.max(0, (scrollOffset)), getHeight(), srcX, 0, srcWidth, back.getHeight(), false, false);
+        Log.info(((Object) this).getClass().getName(), "Draw fro" + srcX + " to " + (srcX + srcWidth) + " of " + back.getWidth());
         batch.draw(getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.MID)), getX(), getY(), getWidth(), getHeight());
-        batch.draw(getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.FORE)), getX()+(scrollOffset/2), getY(), getWidth(), getHeight());
+        batch.draw(getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.FORE)), getX() + (scrollOffset / 2), getY(), getWidth(), getHeight());
 
         Texture title = getScreen().getTexture(GameMenuAssets.getResourcePath(game, GameMenuAssets.GameMenuLayers.TITLE));
         int titleX = (int) (getStage().getWidth() * 0.2);
@@ -43,11 +47,11 @@ public class GameMenuPage extends MenuPage implements ViewPager.ScrollListener {
     @Override
     public void onScroll(float offset) {
         scrollOffset = offset;
-        Log.info(((Object) this).getClass().getName(), "Scroll " + game.name() + ": " + offset);
+        //Log.info(((Object) this).getClass().getName(), "Scroll " + game.name() + ": " + offset);
     }
 
     @Override
     public void onScrolledToPage() {
-        Log.info(((Object) this).getClass().getName(), "Scrolled to page: " + game.name());
+        //Log.info(((Object) this).getClass().getName(), "Scrolled to page: " + game.name());
     }
 }

core/src/cz/nic/tablexia/util/ui/ViewPager.java

@@ -8,8 +8,6 @@ import com.badlogic.gdx.scenes.scene2d.ui.Skin;
 import com.badlogic.gdx.scenes.scene2d.ui.Table;
 import com.badlogic.gdx.utils.Array;
 
-import cz.nic.tablexia.util.Log;
-
 /**
  * Created by lhoracek on 3/4/15.
  */
@@ -86,8 +84,6 @@ public class ViewPager extends ScrollPane {
 
 
         if(lastX != getWidget().getX()){
-            Log.info(((Object) this).getClass().getName(), "ScrollX: " + getWidget().getX());
-
             float scrollX = -getWidget().getX();
             Array<Actor> pages = content.getChildren();
             float pageX = 0;