How to achieve scrolling screen with BufferStrategy?

Newbie & Debugging Questions
#1

I had problems with Fraps and my Java game few days back and I was suggested to use BufferStrategy. So I used it and problems are gone now, but I ended up to situation where my coding skills arent enough to solve this simple problem: I used to draw everything to an image. After everything was drawn the Image was shown to screen (=double buffering). And now BufferStrategy has taken place of the image.

I used to also move that image so that screen scrolls left and right depending where player moves. So how can I reach same result? Im pretty stuck at this point with this. ???

#2

Use Graphics2D’s AffineTransform object to translate the world.

#3

Maybe one of the most common type of sentences on this forum: I am pretty new to coding (well not new but after long time since training I decided to continue game making) so I dont quite understand how I should include AffineTransform into my code. I am using JFrame (if that tells something?). Im pretty lost at the moment. :clue:

Edit: I wouldnt like to change all my code into Graphics2d so thats why I feel this kinda as a problem. :smiley:

#4

Well I think I managed to solve my problem (thinking is pretty hard when I am awfully tired ;D)

Well now I am asking is this vice way to do:

public void renderScreen() {
		if(bI == null) { //double buffer image I used before BufferStrategy
			bI = createImage(screen_width*2, screen_height);
			bG = bI.getGraphics();
		}
	        //drawing code here
	}
	
	public void paint(Graphics g) {
		strategy = this.getBufferStrategy();
		g = strategy.getDrawGraphics();
		
		//draw buffer image to screen
		g.drawImage(bI, (int)buffer_pos_x, 0, null); //drawing the "buffer" Image to screen
		g.dispose();
		strategy.show();
		Toolkit.getDefaultToolkit().sync();
	}
	
	public void run() {
		if(mappi != null && pl != null) {
			while(game_on == true) {
				pl.playerMove();
				renderScreen();
				repaint();
				try {
				 	Thread.sleep(fps_sleep);
				} catch(InterruptedException ie) {}
			}
		}
		if(game_on == false) System.exit(0);
	}

Is that a correct order of BufferStrategy and rendering & etc. ?

Edit: As regarding to my last topic where I had problems with Fraps, I ran to this kind of problem:
When recording under 77fps Fraps records flickrs while playing game. When recording at 77fps flickers dont exist. Is this normal? I am just testing my game and the final game wont run faster than 60 fps. Normal? Problematic? Strange behavior? Bad Code?