问Java平滑ArrayList移动

EN

    public static void MoveMap(final double ammount){
    Thread t = new Thread(){
        public void run(){
            for(int i = 0; i < TileHelper.MAIN_LIST.size();i++){
                    TileHelper.MAIN_LIST.get(i).changeX(ammount*DATA.speed);
            }
        }
    };
    t.start();
}

public class Main extends JFrame {
public static int worldsize = 1080;
private static final long serialVersionUID = 6149918602875295087L;
public static void main(String args[]){
    new Main();
}
TileHelper tiles = new TileHelper(TileHelper.MAIN_LIST);
public Main(){

    DATA_IMAGES.initImages();

    addDefaultBlocks();
    setSize(640,480);
    setResizable(false);
    setTitle("Stranded");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);

    setVisible(true);

    createBufferStrategy(2);
    GameLoop();
    addKeyListener(new KeyListener() {
        public void keyTyped(KeyEvent e) {

        }

        public void keyReleased(KeyEvent e) {

        }

        public void keyPressed(KeyEvent e) {
            int key = e.getKeyCode();


            switch(key){
            case KeyEvent.VK_LEFT:
                Movement.MoveMap(3.25);
                break;
            case KeyEvent.VK_RIGHT:
                Movement.MoveMap(-3.25);
                break;
            case KeyEvent.VK_UP:
                DATA.speed++;
                break;
            case KeyEvent.VK_DOWN:
                DATA.speed--;
                break;
            case KeyEvent.VK_SPACE:
                System.out.println(DATA.speed);
                break;
            }
        }
    });
}
private void addDefaultBlocks() {   
    for(int x = -1000/32; x < worldsize/32; x++){
        for (int y = -1000/32; y < worldsize/32; y++){
            TileHelper.addBlock(DATA_IMAGES.GRASS, x*32, y*32);
        }
    }
}
public void GameLoop(){
    Thread gameloop = new Thread(){
        public void run(){
            while(true){
                RenderInit();
                try {
                    Thread.sleep(30);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    };
    gameloop.start();
}
public void RenderInit(){
    BufferStrategy buff = getBufferStrategy();
    Graphics g = buff.getDrawGraphics();

    g.clearRect(0, 0, getWidth(), getHeight());

    Render(g);

    g.dispose();
    buff.show();
    Toolkit.getDefaultToolkit().sync();
}
public void Render(Graphics g){
    tiles.RenderAll(g);
}