public void update(GameContainer gc) {
        int scrollWheel = Mouse.getDWheel();
        if(gc.getInput().isKeyDown(Input.KEY_LEFT)) {
            x-=CAM_SPEED;
        }
        if(gc.getInput().isKeyDown(Input.KEY_RIGHT)) {
            x+=CAM_SPEED;
        }
        if(gc.getInput().isKeyDown(Input.KEY_UP)) {
            y-=CAM_SPEED;
        }
        if(gc.getInput().isKeyDown(Input.KEY_DOWN)) {
            y+=CAM_SPEED;
        }
        
        if (scrollWheel < 0) {
            scale *= 0.5;
        }else if (scrollWheel > 0) {
            scale /= 0.5;
        }
    }