Add cloud background and improve texture scaling in DiceOS

src/main/java/be/seeseemelk/diceos/DiceOS.java

@@ -5,6 +5,7 @@ import be.seeseemelk.diceos.system.OnStartup;
 import com.badlogic.gdx.ApplicationAdapter;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.badlogic.gdx.utils.ScreenUtils;
 import com.badlogic.gdx.utils.viewport.ScreenViewport;
 import com.badlogic.gdx.utils.viewport.Viewport;
@@ -21,10 +22,11 @@ public class DiceOS extends ApplicationAdapter {
     private final DisplayService display;
     private final List<OnStartup> startupTasks;
     private Texture background;
+    private Texture clouds;
     private Texture border;
     private Viewport vmViewport;
     private Viewport screenViewport;
-    private int stretchFactor = 1;
+    private int scaling = 1;
     private int offsetX = 0;
     private int offsetY = 0;
 
@@ -32,6 +34,7 @@ public class DiceOS extends ApplicationAdapter {
     public void create() {
         log.info("DiceOS starting...");
         background = new Texture("src/main/resources/background.png");
+        clouds = new Texture("src/main/resources/clouds.png");
         border = new Texture("src/main/resources/border.png");
 
         screenViewport = new ScreenViewport();
@@ -52,9 +55,9 @@ public class DiceOS extends ApplicationAdapter {
 
         int displayWidth = display.getWidth();
         int displayHeight = display.getHeight();
-        stretchFactor = Math.min(width / displayWidth, height / displayHeight);
+        scaling = Math.min(width / displayWidth, height / displayHeight);
-        offsetX = (width - (displayWidth * stretchFactor)) / 2;
+        offsetX = (width - (displayWidth * scaling)) / 2;
-        offsetY = (height - (displayHeight * stretchFactor)) / 2;
+        offsetY = (height - (displayHeight * scaling)) / 2;
     }
 
     @Override
@@ -72,6 +75,7 @@ public class DiceOS extends ApplicationAdapter {
                 display.draw(background, x, y);
             }
         }
+        display.draw(clouds, 0, 0);
 
         var param = new DisplayService.Parameters();
         display.draw(border, 0, 0, param);
@@ -88,8 +92,10 @@ public class DiceOS extends ApplicationAdapter {
         screenViewport.apply();
         display.getBatch().setProjectionMatrix(screenViewport.getCamera().combined);
         display.getBatch().begin();
-        display.getBatch().draw(display.getScreenBuffer().getColorBufferTexture(),
+        var texture = display.getScreenBuffer().getColorBufferTexture();
-                offsetX, offsetY, display.getWidth() * stretchFactor, display.getHeight() * stretchFactor);
+        var textureRegion = new TextureRegion(texture);
+        textureRegion.flip(false, true);
+        display.getBatch().draw(textureRegion, offsetX, offsetY, display.getWidth() * scaling, display.getHeight() * scaling);
         display.getBatch().end();
     }
 }

src/main/java/be/seeseemelk/diceos/system/DisplayService.java

@@ -22,7 +22,7 @@ public class DisplayService implements OnStartup {
 
     @Override
     public void onStartup() {
-        screenBuffer = new FrameBuffer(Pixmap.Format.RGBA8888, getWidth(), getHeight(), false);
+        screenBuffer = new FrameBuffer(Pixmap.Format.RGBA4444, getWidth(), getHeight(), false);
         screenBuffer.getColorBufferTexture().setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Nearest);
         batch = new SpriteBatch();
     }
@@ -57,7 +57,7 @@ public class DisplayService implements OnStartup {
     public static class Parameters {
         public final static Parameters DEFAULT = new Parameters();
 
-        public boolean flipX;
+        public boolean flipX = false;
-        public boolean flipY;
+        public boolean flipY = false;
     }
 }