text: 
  // PS DEBUGING
  
  var stage = new PIXI.Container();
  stage.interactive = true;
  stage.hitArea = new PIXI.Rectangle(0, 0, app.renderer.screen.width, app.renderer.screen.height);
  
  stage.mousedown = function (moveData) 
  {	
     // console.log("mousedown:"); 
     
     let mousePosition = app.renderer.plugins.interaction.mouse.global;
     /*
     let rv = getRandom(-8,8);
     PS.emit( { count: 4, x:mousePosition.x, y:mousePosition.y, vel: 512, rvel:rv, gravity:1024, life:5.0, tex:debris } );
     */
  };
  stage.mousemove = function (moveData) 
  {
     // console.log("mousemove"); 
     let mousePosition = app.renderer.plugins.interaction.mouse.global;
  
     /*
     let dx = mousePosition.x - Ball.sprite.x;
     let dy = mousePosition.y - Ball.sprite.y;
     let f = 0.1;
  
     Ball.sprite.x += dx * f;
     Ball.sprite.y += dy * f;
  
     if( Math.random() > 0.1 )
        return;
     */
     /*
     let rx = getRandom(-8,8);
     let ry = getRandom(-8,8);
     let rl = getRandom(0.5,1.0);
     PS.emit( { count: 1, x: Ball.sprite.x+rx, y: Ball.sprite.y+ry, vel: 0, rvel:0, gravity:0,  life:rl, tex:ballTrail } );
     */
  
     //PS.emit( { count: 1, x: Ball.sprite.x, y: Ball.sprite.y, vel: 0, rvel:10 * Math.sign(dx), gravity:0,  life:1.0, tex:paddleTrail } );
  };
  stage.mouseup = function (moveDate) 
  {
     // console.log("mouseup");
     let mousePosition = app.renderer.plugins.interaction.mouse.global;
     // PS.emit( { count: 4, x:mousePosition.x, y:mousePosition.y, vel: 512, rvel:10.0, gravity:1024,  life:5.0, tex:debris } );
  };
  
  app.stage.addChild(stage);
  
  // TODO: ui: score, lives left, messages (start,game over, etc)
  
  // TODO: add hit left counter to blocks and make it invisible only if hit left counter is equal to 0
  // TODO: set hit left counter custom per block color
  // TODO: play sounds when hitting side, bottom, block, paddle
  
  // TODO: add particles, ball trail, paddle trail, block break
  
  // TODO: add screen shake
  
  // TODO: add end of level condition
  
  // TODO: add power ups: multi ball, small paddle, fast ball, slow ball, etc