基本思想是，您需要某种
List包含蛇的所有点的东西。从概念上讲，
List它将包含虚拟坐标，即
1x1表示虚拟空间中的坐标，该坐标表示虚拟板上的位置（宽度和高度会有所增加）。
然后，您可以将其翻译到屏幕上，这样将允许蛇的每个部分都大于单个像素。因此，如果每个部分都是
5x5像素，则
1x1实际上将
5x5在屏幕中。
每次蛇移动时，都向头部添加一个新值，并从尾部删除最后一个值（假设它没有增长）。当您需要画蛇时，您只需遍历
List，就可以画蛇的每个点。
以下是一个简单的示例，该示例使用一个
linkedList，将一个新的元素推
Point到上
List，制作一个新的头部，并在每个循环中都删除最后一个元素（尾部）。
基本上可以归结为…
snakeBody.removeLast();snakeBody.push(new Point(xPos, yPos));
作为可运行的概念
import java.awt.Color;import java.awt.Dimension;import java.awt.EventQueue;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.Point;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyEvent;import java.util.linkedList;import javax.swing.AbstractAction;import javax.swing.Action;import javax.swing.ActionMap;import javax.swing.InputMap;import javax.swing.Jframe;import javax.swing.JPanel;import javax.swing.KeyStroke;import javax.swing.Timer;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;public class Snake { public static void main(String[] args) { new Snake(); } public Snake() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } Jframe frame = new Jframe("Testing"); frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public static class TestPane extends JPanel { public enum Direction { UP, DOWN, LEFT, RIGHT } private int xPos, yPos; private Direction direction = Direction.UP; private linkedList<Point> snakeBody = new linkedList<>(); public TestPane() { xPos = 100; yPos = 100; for (int index = 0; index < 50; index++) { snakeBody.add(new Point(xPos, yPos)); } bindKeyStrokeTo("up.pressed", KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0, false), new MoveAction(Direction.UP)); bindKeyStrokeTo("down.pressed", KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0, false), new MoveAction(Direction.DOWN)); bindKeyStrokeTo("left.pressed", KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0, false), new MoveAction(Direction.LEFT)); bindKeyStrokeTo("right.pressed", KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0, false), new MoveAction(Direction.RIGHT)); Timer timer = new Timer(40, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { switch (direction) { case UP: yPos--; break; case DOWN: yPos++; break; case LEFT: xPos--; break; case RIGHT: xPos++; break; } if (yPos < 0) { yPos--; } else if (yPos > getHeight() - 1) { yPos = getHeight() - 1; } if (xPos < 0) { xPos--; } else if (xPos > getWidth() - 1) { xPos = getWidth() - 1; } snakeBody.removeLast(); snakeBody.push(new Point(xPos, yPos)); repaint(); } }); timer.start(); } public void bindKeyStrokeTo(String name, KeyStroke keyStroke, Action action) { InputMap im = getInputMap(WHEN_IN_FOCUSED_WINDOW); ActionMap am = getActionMap(); im.put(keyStroke, name); am.put(name, action); } @Override public Dimension getPreferredSize() { return new Dimension(200, 200); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g.create(); g2d.setColor(Color.RED); for (Point p : snakeBody) { g2d.drawLine(p.x, p.y, p.x, p.y); } g2d.dispose(); } public class MoveAction extends AbstractAction { private Direction moveIn; public MoveAction(Direction direction) { this.moveIn = direction; } @Override public void actionPerformed(ActionEvent e) { direction = this.moveIn; } } }}现在，它没有碰撞检测或其他功能，但是您可以移动蛇，蛇会自动跟随
