Game Loop Attempt

loop.java

public void runGame(){
     Graphics2D gImage = (Graphics2D)canvas.getGraphics();
     long lastUpdate = System.nanoTime();
     long startTime = System.nanoTime();
     long endTime = System.nanoTime();
     int counter = 0;
     //UPS = updates per second
     int UPS = 1000000000 / 25;
		
     while(isRunning){
          //run update at 25 updates per second
	  while(System.nanoTime() - lastUpdate > UPS){
               updateGame();
	       lastUpdate += UPS;
	  }
          endTime = System.nanoTime();

          //Code to see if the update method is really running at 25 updates per second
          if(endTime - startTime >= 1000000000){
               System.out.println(counter);
	       counter = 0;
	       startTime = System.nanoTime();
	  }

     //Calculate how much to move entities based on the time between updates
     float interpolation = (float)(System.nanoTime() - lastUpdate) / (float)UPS;
     puck.interpolate(interpolation);
     p1.interpolate(interpolation);
     p2.interpolate(interpolation);
     checkCollisions();
			
     //render without an upper limit
     render(gImage, interpolation);
     }
}