Add custom cursor support in DiceOS

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

@@ -3,7 +3,9 @@ package be.seeseemelk.diceos;
 import be.seeseemelk.diceos.system.DisplayService;
 import be.seeseemelk.diceos.system.OnStartup;
 import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.Pixmap;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.NinePatch;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
@@ -39,6 +41,7 @@ public class DiceOS extends ApplicationAdapter {
         clouds = new Texture("src/main/resources/clouds.png");
         border = new Texture("src/main/resources/border.png");
         loadMenubar();
+        loadCursor();
 
         screenViewport = new ScreenViewport();
         vmViewport = new ScreenViewport();
@@ -57,6 +60,19 @@ public class DiceOS extends ApplicationAdapter {
         menubar = new NinePatch(texture, 9, 9, 15, 1);
     }
 
+    private void loadCursor() {
+        var pixmap = new Pixmap(Gdx.files.internal("cursor.png"));
+
+        var scaled = new Pixmap(pixmap.getWidth() * scaling, pixmap.getHeight() * scaling, pixmap.getFormat());
+        scaled.setFilter(Pixmap.Filter.NearestNeighbour);
+        scaled.drawPixmap(pixmap, 0, 0, pixmap.getWidth(), pixmap.getHeight(),
+                0, 0, scaled.getWidth(), scaled.getHeight());
+
+        var cursor = Gdx.graphics.newCursor(scaled, 0, 0);
+        Gdx.graphics.setCursor(cursor);
+        pixmap.dispose();
+    }
+
     @Override
     public void resize(int width, int height) {
         screenViewport.update(width, height, true);
@@ -70,6 +86,7 @@ public class DiceOS extends ApplicationAdapter {
 
     @Override
     public void render() {
+        loadCursor(); // Dispose the old cursor first
         ScreenUtils.clear(Color.BLACK);
         vmViewport.apply();
         display.getScreenBuffer().begin();