listing16-02_measuringperformanceingameloop.txt

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// Listing 16-2.Measuring the Performance of a Typical Game Loop

public void run() {
	while ( this.gameIsRunning ) {
		evaluateUserInput();

		//#if polish.debug.benchmark
			long startTime = System.currentTimeMillis();
			for ( int i = 0; i < 100; i++ ) {
		//#endif
		animateWorld();
		//#if polish.debug.benchmark
			}
			long timeAnimate = System.currentTimeMillis() - startTime;
		//#endif
		//#if polish.debug.benchmark
			startTime = System.currentTimeMillis();
			for ( int i = 0; i < 100; i++ ) {
		//#endif

		renderWorld();

		//#if polish.debug.benchmark
			}
			long timeRender = System.currentTimeMillis() - startTime;
			//#debug benchmark
			System.out.println( "animateWorld: " + timeAnimate + "renderWorld: " + timeRender );
		//#endif
	}
}