Question

我（尝试）将Java中的俄罗斯方块克隆扩展到Canvas，但它不断闪烁。我到处寻找解决方案，答案总是使用BufferStrategy。我（想）添加它但它仍然闪烁，也许我做错了。
请记住，这是我第一次尝试真正的＆＃34;项目＆＃34;因此代码看起来有点混乱和荒谬。

这是我的主类（我删除了我认为与缩短代码无关的代码）

public class Main extends Canvas implements Runnable{

    public static void main(String[] args) {
        final JFrame frame = new JFrame("Tetris");
        frame.setSize(WIDTH, HEIGHT);
        //more frame config

        Main m = new Main();
        m.setBounds(0, 25, WIDTH, HEIGHT - 25);
        frame.add(m);

        frame.setVisible(true);
        m.start();
    }

    public void start() {
        Thread t = new Thread(this);
        t.setPriority(Thread.MAX_PRIORITY);
        t.start();
    }

    public void run() {
        init();
        boolean running = true;
        while(running) {
            update();
            BufferStrategy buff = getBufferStrategy();
            if(buff == null) {
                createBufferStrategy(2);
                continue;
            }
            Graphics2D g = (Graphics2D) buff.getDrawGraphics();
            render(g);
            g.dispose();
            buff.show();
        }
    }

    public void init() {
        //create board and controls..

        tetrominoes = new ArrayList<ArrayList<Square>>();

        //creates first tetrominoe
        tetrominoes.add(new ArrayList<Square>());

        paintPiece(figure, tetrominoes.get(0), color);

    }

    public void update() {
        boolean fallAllowed = true;

        if(System.currentTimeMillis() - lastDrop > 1000) {
            //Drop piece 1 block every second

            for(Square square : tetrominoes.get(tetrominoes.size() - 1)) {
                //checks if fall is allowed and sets to true if it is
            }
            if(fallAllowed) {
                for (Square square : tetrominoes.get(tetrominoes.size() - 1)) {
                    square.setSquareY(square.getSquareY() + 25);
                }
            }else {
                //when no more falling allowed creates new tetrominoe
                tetrominoes.add(new ArrayList<Square>());
                paintPiece(figure, tetrominoes.get(tetrominoes.size() - 1), color);
            }


            repaint();
            lastDrop = System.currentTimeMillis();
        }

        if(control.left) {
            if(System.currentTimeMillis() - lastPressProcessed > 200) {
                //moves coordinates to left

                repaint();
                lastPressProcessed = System.currentTimeMillis();
            }
        }
        //deleted code for control.right and control.down

    }

    public void paintPiece(boolean[][] figure, ArrayList<Square> tetrominoe, int color) {

        //figures starting coordinates for new tetrominoe and creates 4 square objects with those coordinates
    }

    public void render(Graphics2D g) {
        board.paintBoard(g);

        //goes through each Square of every tetrominoe and paints it
        for (ArrayList<Square> tetrominoe : tetrominoes) {
            for (Square square : tetrominoe) {
                square.paintImage(g);
            }
        }
    }
}

和Square class

class Square {

    private int squareX;
    private int squareY;
    private int squareW = 25;
    private int squareH = 25;
    private int imagePos = 0;

    public Square(int squareX, int squareY, int imagePos) {
        this.squareX = squareX;
        this.squareY = squareY;
        this.imagePos = imagePos;
    }

    public void paintImage(Graphics2D g) {
        g.drawImage(Main.tetrisBlocks[imagePos], squareX, squareY, squareW, squareH, null);
    }

    //getters and setters

游戏逻辑（如果相关）：
在开始时创建一个新的四联骨牌，一个四联体是一个Square对象的ArrayList，它包含将用于绘制方形图像的X，Y，W，H值。
四联体存储在四联体ArrayList中 piece类包含所有7个可能的四联体，每个四联体都在一个布尔的2d数组变量中因此，一旦我创建了一个用选择的部分创建的tetrominoe，我称之为paintPiece方法，此方法计算出绘制到tetrominoe的坐标，并创建带有这些坐标的4个Square对象，所有这些都添加到了tetrominoe arraylist中。

现在更新方法每秒使用一个forloop通过tetrominoes arraylist中最后一个tetrominoe的每个Square，并在该tetrominoe的每个方块的Y坐标上加25（以便该块可以掉下来）并调用重绘（）方法。

repaint（）方法绘制板（黑色矩形）然后遍历每个四边形中的每个Square对象，其中Squares的ArrayList包含四联类ArrayList，对于每个方块，调用square.paintImage（g）。 / p>

每次坠落到底部时重复......

即使使用BufferStrategy重新绘制Java画布也会闪烁

0 个答案: