cam.position.x = clamp(cam.position.x, Gdx.graphics.getWidth()-cam.viewportWidth, 0);
        cam.position.y = clamp(cam.position.y, Gdx.graphics.getHeight()-cam.viewportHeight, 0);
        cam.update();

public float clamp(float var, float max, float min) {


   if (var > min) {
        if (var < max) {
            return var;
        } else return max;
    } else return min;
}

orthomap = new OrthogonalTiledMapRenderer(tileMap);

orthomap = new OrthogonalTiledMapRenderer(tileMap);



            //setup Box2D Cam


    OrthographicCamera  B2DCAM=new   OrthographicCamera(Gdx.graphics.getWidth()/PPM,Gdx.graphics.getHeight()/PPM);

 OrthographicCamera   cam=new OrthographicCamera(Gdx.graphics.getWidth()/4,Gdx.graphics.getHeight()/4);

public void render(float delta) {

        //clear screen
        update(delta);

        Gdx.gl20.glClear(GL20.GL_COLOR_BUFFER_BIT);
        cam.position.x = clamp(cam.position.x, Gdx.graphics.getWidth()-cam.viewportWidth, 0);
        cam.position.y = clamp(cam.position.y, Gdx.graphics.getHeight()-cam.viewportHeight, 0);
        cam.update();


       // cam.position.x += (player.getPosition().x + delta - cam.position.x) * 0.3 * delta;
      //  cam.update();
     //   cam.position.set(cam.position.x,3.5f,0);
     //    cam.update();
           cam.position.set(player.getPosition().x*PPM ,player.getPosition().y*PPM ,0);
      //  B2DCAM.position.set(player.getPosition().x*PPM ,player.getPosition().y*PPM ,0);
     //  B2DCAM.position.set(cam.position.x,3.5f,0);
       // B2DCAM.update();

       //   B2DCAM.update();
          cam.update();
       // hud.update();


        if (sb == null) {
            System.out.println("Sb is null");
        }
        // cam.position.set(player.getPosition().x,player.getPosition().y,0  );
        sb.setProjectionMatrix(cam.combined);


        for(int i=0;i<diamondsArray.size;i++){
            diamondsArray.get(i).render(sb);
        }



        //draw tile map
        orthomap.setView(cam);
        orthomap.render();
        //draw player
        sb.setProjectionMatrix(cam.combined);

        player.render(sb);

        b2d.render(world,B2DCAM.combined);




    }