Loop.java

		while (!close)
		{
			double now = System.nanoTime();
			int updateCount = 0;

			if (!paused)
			{
				while( now - lastUpdateTime > TIME_BETWEEN_UPDATES && updateCount < MAX_UPDATES_BEFORE_RENDER )
				{
					update();
					lastUpdateTime += TIME_BETWEEN_UPDATES;
					updateCount++;
				}
				if ( now - lastUpdateTime > TIME_BETWEEN_UPDATES)
				{
					lastUpdateTime = now - TIME_BETWEEN_UPDATES;
				}

				render();
				lastRenderTime = now;

				int thisSecond = (int) (lastUpdateTime / 1000000000);
				if (thisSecond > lastSecondTime)
				{
					lastSecondTime = thisSecond;
				}

				while ( now - lastRenderTime < TARGET_TIME_BETWEEN_RENDERS && now - lastUpdateTime < TIME_BETWEEN_UPDATES)
				{
					Thread.yield();
					try {Thread.sleep(1);} catch(Exception e) {}

					now = System.nanoTime();
				}
			}
		}