Add FPS counter

core/src/dev/bangbang/loom/Game.java

@@ -1,25 +1,43 @@
 package dev.bangbang.loom;
 
 import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.OrthographicCamera;
 import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.graphics.g2d.BitmapFont;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
 import com.badlogic.gdx.utils.ScreenUtils;
 
 public class Game extends ApplicationAdapter {
 	SpriteBatch batch;
 	Texture img;
+	BitmapFont font;
+	OrthographicCamera camera;
 	
 	@Override
 	public void create () {
 		batch = new SpriteBatch();
 		img = new Texture("badlogic.jpg");
+		font = new BitmapFont();
+		camera = new OrthographicCamera();
+		camera.setToOrtho(false, 1600, 900);
+
+		font.getData().setScale(2);
 	}
 
 	@Override
 	public void render () {
 		ScreenUtils.clear(1, 0, 0, 1);
+
+		camera.update();
+		batch.setProjectionMatrix(camera.combined);
+
 		batch.begin();
+
 		batch.draw(img, 0, 0);
+		font.draw(batch, "FPS: " + Integer.toString(Gdx.graphics.getFramesPerSecond()), 5, 895);
+
 		batch.end();
 	}
 	

desktop/src/dev/bangbang/loom/DesktopLauncher.java

@@ -9,7 +9,6 @@ public class DesktopLauncher {
 		Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
 		config.setWindowedMode(1600, 900);
 		config.setForegroundFPS(60);
-		config.setIdleFPS(15);
 		config.useVsync(true);
 		config.setTitle("Loom");
 		new Lwjgl3Application(new Game(), config);