贪吃蛇和俄罗斯方块

贪吃蛇

一、创建新项目

创建一个新的项目，并命名。

创建一个名为images的文件夹用来存放游戏相关图片。

然后再在项目的src文件下创建一个com.xxx.view的包用来存放所有的图形界面类，

创建一个com.xxx.controller的包用来存放启动的入口类(控制类)

二、游戏界面 

package com.snake.view;
 
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
 
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.Timer;
import javax.swing.border.EmptyBorder;
 
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
 
public class SnakeJPanel extends JPanel implements ActionListener{
	
	private boolean start;//当前游戏状态
	
	private int speed;//速度
	
    private boolean exist;//当前是否存在食物
    
    private int foodType;//食物种类
    
    private int x;//豆子的横坐标
    private int y;//豆子的纵坐标
	
	private ArrayList localList;//蛇
	
	
	public String direction;//方向
	
	private String direction2;//引导方向
	
	public boolean flag;
	
	Random rand = new Random();
 
	private ImageIcon up;
 
	private ImageIcon down;
 
	private ImageIcon right;
 
	private ImageIcon left;
 
	private ImageIcon body;
 
	private ImageIcon food;
 
	private ImageIcon title;
	
	Timer time;
	
	private int score;//当前得分情况
	
	private int num;//吃到的食物个数
	
//    private Image offScreenImage;  //图形缓存
	
	
	//图片绘制
	@Override
	public void paint(Graphics g) {
		
		direction = direction2;
		
		g.setColor(Color.WHITE);
		g.fillRect(0, 0, 900, 700);
		
		//绘制游戏框
		//标题框
//		g.drawRect(25, 30, 800, 75);
		title.paintIcon(this, g, 25, 10);
		
		//内容框
		g.setColor(Color.black);
		g.fillRect(25, 75, 850, 600);
		
		//绘制食物的坐标位置
		if(!exist) {//如果当前不存在豆子,随机绘制一个豆子	
			if(num % 5 == 0) {
				foodType = 1;
			}else {
				foodType = 0;
			}
			boolean isProduce = true;
			while(isProduce) {
				isProduce = false;
				x = rand.nextInt(33) * 25 + 25;		
				y = rand.nextInt(23) * 25 + 75;			
				for (int[] arr:localList) {
					if(x == arr[0] && y == arr[1]) {	
						isProduce = true;
						break;	
					}
				}
				
			}			
			System.out.println(x + "---" + y);
		}
		
		 if(eat()) {
	        exist = false;
		 }else {
			exist = true;
		 }
		 
		 
		if(foodType == 0) {
			//绘制食物
			g.setColor(Color.blue);
//			g.fillRect(x, y, 25, 25);
			g.drawImage(food.getImage(),x, y, 25, 25,null);
		}else {
			//绘制食物
			g.setColor(Color.WHITE);
			g.fillRect(x, y, 25, 25);
//			g.drawImage(food.getImage(),x, y, 25, 25,null);
		}
	
			
		//绘制头
		g.setColor(Color.red);
//		g.fillRect(localList.get(0)[0], localList.get(0)[1], 25, 25);	
		ImageIcon head = null;
		//判断当前方向
		if(direction.equals("R")) {
			 head = right;
		}else if(direction.equals("L")) {
			 head = left;
		}else if(direction.equals("U")) {
			 head = up;
		}else if(direction.equals("D")) {
			 head = down;
		}		
//		g.drawImage(head.getImage(), localList.get(0)[0], localList.get(0)[1], 25, 25,null);
		head.paintIcon(this, g,localList.get(0)[0], localList.get(0)[1]);
		
		//绘制身体
		g.setColor(Color.white);
		for (int i = 1; i < localList.size(); i++) {
//			g.fillRect(localList.get(i)[0], localList.get(i)[1], 25, 25);
//			g.drawImage(body.getImage(), localList.get(i)[0], localList.get(i)[1], 25, 25,null);
			body.paintIcon(this, g, localList.get(i)[0], localList.get(i)[1]);
		}
//		g.fillRect(localList.get(1)[0], localList.get(1)[1], 25, 25);
//		g.fillRect(localList.get(2)[0], localList.get(2)[1], 25, 25);
			
		
		//绘制分数和长度
		//长度
		g.setColor(Color.GREEN);
		g.setFont(new Font("宋体", Font.BOLD, 18));
		g.drawString("长度:" + (localList.size() - 1), 25, 30);
		
		//分数
		g.drawString("分数:" + score, 25, 48);
		
		if(!start) {//如果游戏未启动，结束移动和重绘
			g.setColor(Color.white);
			g.setFont(new Font("宋体", Font.BOLD, 30));
			g.drawString("暂停/开始(请按任意键开始，空格键暂停)", 150, 300);
			time.stop();
			
		}else {
			time.start();
		}
			
//		speed();
		//移动后进行下一次绘制		
//      move();//移动
//		repaint();//重新绘制		
	}
	
//	//解决闪烁问题
//	//如果为JFrame 为重量级  程序不会调用update()方法
//	//如果为Frame 为轻量级  重写update()方法 做双缓冲
//	//如果为JPanel 不会闪烁
//	  @Override
//	    public void update(Graphics g)
//	    {
//	    	System.out.println("update");
//	           if(offScreenImage == null)
//	              offScreenImage = this.createImage(900, 700);  //新建一个图像缓存空间,这里图像大小为800*600
//	              Graphics gImage = offScreenImage.getGraphics();  //把它的画笔拿过来,给gImage保存着
//	              paint(gImage);                                   //将要画的东西画到图像缓存空间去
//	              g.drawImage(offScreenImage, 0, 0, null);         //然后一次性显示出来
//	    }
	
 
	@Override
	public void actionPerformed(ActionEvent e) {	    
	    //移动后进行下一次绘制		
        move();//移动
	    repaint();//重新绘制		
		
	}
 
	/**
	 * 绘制速度
	 */
//	private void speed() {
//		try {//按一定速度进行移动
//			Thread.sleep(speed);//控制移动速度
//		} catch (InterruptedException e) {
//			// TODO 自动生成的 catch 块
//			e.printStackTrace();
//		}
//	}
 
	/**
	 * 初始化图片
	 */
	private void drawImage() {
		up = new ImageIcon("images/up.png");
		down = new ImageIcon("images/down.png");
		right = new ImageIcon("images/right.png");
		left = new ImageIcon("images/left.png");
		body = new ImageIcon("images/body.png");
		food = new ImageIcon("images/food.png");
		title = new ImageIcon("images/title.jpg");
	}
	
	private boolean eat() {
		if(localList.get(0)[0] == x && localList.get(0)[1] == y) {//如果当前蛇头吃到了豆子
			System.out.println("eat");
			num++;
			if(foodType == 0) {
				score += 10;
			}else {
				score += (rand.nextInt(5) * 10 + 10);
			}
			int last = localList.size() - 1;//蛇尾			
			//在蛇尾后面添加一节身体
			localList.add(new int[] {localList.get(last)[0],localList.get(last)[1]});
			return true;
		}
		return false;
	}
 
	//移动方法
	public void move() {
		//判断是否游戏结束
		if(isbody()) {
			System.out.println("game over");
			start = false;//结束游戏移动
			JOptionPane.showMessageDialog(null,"游戏已结束！");
			time.stop();
			init();		
		}
			
		if(flag && localList != null) {//如果长度不为空且游戏未结束				
			int last = localList.size() - 1;//记录蛇尾
			
			for (int i = last; i > 0; i--) {//从蛇尾开始，每节身体移动到前一节身体的位置上
				localList.set(i,new int[] {localList.get(i - 1)[0],localList.get(i - 1)[1]});
			}
			
			//记录头位置
			int[] local = localList.get(0);
			//判断当前方向,并进行模拟移动，判断是否与边界重合
			if(direction.equals("R")) {
				if(local[0] >= 850) {
					local[0] = 25;
				}else {
					local[0] += 25;
				}
				
			}else if(direction.equals("L")) {
				if(local[0] <= 25) {
					local[0] = 850;
				}else {
					local[0] -= 25;
				}
				
			}else if(direction.equals("U")) {
				
				if(local[1] <= 75) {
					local[1] = 650;
				}else {
					local[1] -= 25;
				}
				
			}else if(direction.equals("D")) {
				if(local[1] >= 650) {
					local[1] = 75;
				}else {
					local[1] += 25;
				}
				
			}			
						
			//更改头的位置
			localList.set(0, local);		
		}	
	}
	
	//判断下一步是否为蛇身
	private boolean isbody() {
		// TODO 自动生成的方法存根
		//记录头位置
		int x = localList.get(0)[0];
		int y = localList.get(0)[1];
 
		//判断当前方向,并进行模拟移动，判断是否与边界重合
		if(direction.equals("R")) {
			x += 25;
		}else if(direction.equals("L")) {
			x -= 25;
		}else if(direction.equals("U")) {
			y -= 25;
		}else if(direction.equals("D")) {
			y += 25;
		}			
		
		for (int i = 1; i < localList.size(); i++) {
			if(localList.get(i)[0] == x && localList.get(i)[1] == y) {
				return true;
			}
		}
		return false;
 
	}
	
//	//判断下一步是否为边界
//	private boolean isborder() {
//		// TODO 自动生成的方法存根
//		//记录头位置
//		// TODO 自动生成的方法存根
//		//记录头位置
//		int x = localList.get(0)[0];
//		int y = localList.get(0)[1];
//
//		//判断当前方向,并进行模拟移动，判断是否与边界重合
//		if(direction.equals("R")) {
//			x += 25;
//		}else if(direction.equals("L")) {
//			x -= 25;
//		}else if(direction.equals("U")) {
//			y -= 25;
//		}else if(direction.equals("D")) {
//			y += 25;
//		}	
//				
//		if(x < 25 || x > (33 * 25 + 25)) {
//			return true;//当x坐标超出边界，则返回true
//		}
//		if(y < 105 || y > (23 * 25 + 105)) {
//			return true;//当y坐标超出边界，则返回true
//		}
//		return false;//蛇头移动后未超出边界，返回false
//		
//	}
 
	/**
	 * Create the frame.
	 */
	public SnakeJPanel(int speed) {
		
		this.speed = speed; //初始化速度
		
		//初始化游戏面板的基本信息
		this.setSize(900, 700);
		this.setLocation(0, 30);
		this.setFocusable(true);
		
		init();//初始化界面
		drawImage();//绘制图片
		moveByKey();//给界面添加一个键盘监听
				
	}
 
	/*
	 * 键盘监听
	 * 通过键盘输入上下左右来控制当前蛇头移动的方向
	 * 先判断当前蛇头方向，再来改变引导方向
	 * 当进行绘制时再修改蛇的方向
	 * 保证不会因为在短时间内快速变换方向导致蛇头逆向转向
	 */
	private void moveByKey() {
		addKeyListener(new KeyAdapter() {
			@Override
			public void keyPressed(KeyEvent e) {
				int key = e.getKeyCode();
				//边界值判断
				switch(key) {
				case 65:
				case 37:{//向左走
					if(!direction.equals("R")) {
						direction2 = "L";
						
					}
					break;
				}				
				case 87:
				case 38:{//向上走
					if(!direction.equals("D")) {
						direction2 = "U";
					}				
					break;
				}				
				case 68:
				case 39:{//向右走
					if(!direction.equals("L")) {
						direction2 = "R";
					}
					break;
				}
				case 83:
				case 40:{//向下走
					if(!direction.equals("U")) {
						direction2 = "D";
					}					
					break;
				}
				case KeyEvent.VK_SPACE:{//如果当前键盘输入为空格
					start = !start;//调整游戏状态
					System.out.println("暂停/开始");
					repaint();//重绘
				}
				}
				
				//任意键开始
				if(!start && key != KeyEvent.VK_SPACE) {//如果当前状态为暂停状态，且键盘输入不是空格
					start = true;
					repaint();//重绘
					
				}				
			}
		});
	}
 
	/**
	 * 初始化游戏基本信息
	 */
	private void init() {
		start = false;
 
		exist = true;
 
		direction2 = "U";
 
		flag = true;
 
		localList = new ArrayList();
 
		localList.add(0,new int[] {75,125});//蛇头
		localList.add(1,new int[] {75,150});//蛇身1
		localList.add(2,new int[] {75,175});//蛇身2
 
		//创建第一个食物的位置
		//通过循环保证当前生成的食物不在身体所在的坐标上
		boolean isProduce = true;
		while(isProduce) {//循环生成食物坐标
			isProduce = false;//结束本次循环
			x = rand.nextInt(33) * 25 + 25;		
			y = rand.nextInt(23) * 25 + 75;			
			for (int[] arr:localList) {//循环遍历蛇头及蛇身的坐标
				if(x == arr[0] && y == arr[1]) {//如果食物坐标和蛇的某一节坐标重合
					isProduce = true;//跳转循环状态，继续下一次食物生成
					break;	
				}
			}
			//蛇身遍历完成，没有重合坐标，结束食物坐标生成
							
		}
 
		time = new Timer(speed, this);
		setLayout(null);
 
		score = 0;
 
		num = 0;
		
		foodType = 0;
		
//		repaint();
		
	}
 
 
}

三、构造启动类

package com.snake.controller;
 
import javax.swing.JFrame;
import javax.swing.JOptionPane;
 
import com.snake.view.SnakeJPanel;
 
public class SnakeStart {
	public static void main(String[] args) {
		
		int speed = 0;
		String showInputDialog = null;//初始化时间
		//得到速度
		while(true) {
			showInputDialog = JOptionPane.showInputDialog("蛇移动速度(1 - 5)","3");
			
			if(showInputDialog == null) {
				showInputDialog = "3";//默认速度
				break;
			}
			if(showInputDialog.length() > 1) {
				continue;
			}
			char[] a = showInputDialog.toCharArray();
			if(a[0] >= '1' && a[0] <= '5') {
				break;
			}
		}
			
		speed = Integer.parseInt(showInputDialog) * 50;
		
		
		SnakeJPanel snakeJPanel = new SnakeJPanel(speed);
		
		//创建一个JFrame窗口，将游戏面板添加进行窗口中
		JFrame jFrame = new JFrame();
		//设置窗口的某些属性
		jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jFrame.setSize(920, 750);
	    jFrame.add(snakeJPanel);
	    jFrame.setLocationRelativeTo(null);
	    jFrame.setVisible(true);
	}
 
}

四、游戏启动

设置游戏速度

游戏界面

 俄罗斯方块

游戏规则：

由小方块组成的不同形状的板块陆续从屏幕上方落下来，玩家通过调整板块的位置和方向，使它们在屏幕底部拼出完整的一条或几条。这些完整的横条会随即消失，给新落下来的板块腾出空间，与此同时，玩家得到分数奖励。没有被消除掉的方块不断堆积起来，一旦堆到屏幕顶端，玩家便告输，游戏结束。

整体代码分为三个模块：方格模块，七种图形模块，俄罗斯方块主模块。

小方块类：Cell

package com.zhao.demo.block;

import java.awt.image.BufferedImage;
import java.util.Objects;

/**
 * @author xiaoZhao
 * @date 2022/5/7
 * @describe
 *  小方块类
 *   方法： 左移、右移、下落
 */
public class Cell {
    // 行
    private int row;
    // 列
    private int col;
    private BufferedImage image;

    public Cell() {
    }

    public Cell(int row, int col, BufferedImage image) {
        this.row = row;
        this.col = col;
        this.image = image;
    }

    public int getRow() {
        return row;
    }

    public void setRow(int row) {
        this.row = row;
    }

    public int getCol() {
        return col;
    }

    public void setCol(int col) {
        this.col = col;
    }

    public BufferedImage getImage() {
        return image;
    }

    public void setImage(BufferedImage image) {
        this.image = image;
    }

    @Override
    public String toString() {
        return "Cell{" +
                "row=" + row +
                ", col=" + col +
                ", image=" + image +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }

        if (!(o instanceof Cell)) {
            return false;
        }
        Cell cell = (Cell) o;
        return getRow() == cell.getRow() &&
                getCol() == cell.getCol() &&
                Objects.equals(getImage(), cell.getImage());
    }

    @Override
    public int hashCode() {
        return Objects.hash(getRow(), getCol(), getImage());
    }

    //左移动一格
    public void left(){
        col--;
    }

    //右移动一格
    public void right(){
        col++;
    }

    //下移动一格
    public void down(){
        row++;
    }
}

 四方格图形的父类：Tetromino

package com.zhao.demo.block;

import com.zhao.demo.shape.*;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe 编写四方格父类
 */
public class Tetromino {

    public Cell[] cells = new Cell[4];

    //旋转的状态
    protected State[] states;
    //声明旋转次数
    protected int count = 10000;


    //左移方法
    public void moveLeft() {
        for (Cell cell : cells) {
            cell.left();
        }
    }

    //右移方法
    public void moveRight() {
        for (Cell cell : cells) {
            cell.right();
        }
    }

    //单元格下落
    public void moveDrop() {
        for (Cell cell : cells) {
            cell.down();
        }
    }

    //编写随机生成四方格
    public static Tetromino randomOne() {
        int num = (int) (Math.random() * 7);
        Tetromino tetromino = null;
        switch (num) {
            case 0:
                tetromino = new I();
                break;
            case 1:
                tetromino = new J();
                break;
            case 2:
                tetromino = new L();
                break;
            case 3:
                tetromino = new O();
                break;
            case 4:
                tetromino = new S();
                break;
            case 5:
                tetromino = new T();
                break;
            case 6:
                tetromino = new Z();
                break;
        }

        return tetromino;
    }

    //顺时针旋转的方法
    public void rotateRight() {
        if (states.length == 0) {
            return;
        }

        //旋转次数+1
        count++;
        State s = states[count % states.length];
        Cell cell = cells[0];
        int row = cell.getRow();
        int col = cell.getCol();
        cells[1].setRow(row + s.row1);
        cells[1].setCol(col + s.col1);
        cells[2].setRow(row + s.row2);
        cells[2].setCol(col + s.col2);
        cells[3].setRow(row + s.row3);
        cells[3].setCol(col + s.col3);
    }

    //逆时针旋转的方法
    public void rotateLeft() {
        if (states.length == 0) {
            return;
        }

        //旋转次数+1
        count--;
        State s = states[count % states.length];
        Cell cell = cells[0];
        int row = cell.getRow();
        int col = cell.getCol();
        cells[1].setRow(row + s.row1);
        cells[1].setCol(col + s.col1);
        cells[2].setRow(row + s.row2);
        cells[2].setCol(col + s.col2);
        cells[3].setRow(row + s.row3);
        cells[3].setCol(col + s.col3);
    }

    //四方格旋转状态的内部类
    protected class State {
        //存储四方格各元素的位置
        int row0, col0, row1, col1, row2, col2, row3, col3;

        public State() {
        }

        public State(int row0, int col0, int row1, int col1, int row2, int col2, int row3, int col3) {
            this.row0 = row0;
            this.col0 = col0;
            this.row1 = row1;
            this.col1 = col1;
            this.row2 = row2;
            this.col2 = col2;
            this.row3 = row3;
            this.col3 = col3;
        }

        public int getRow0() {
            return row0;
        }

        public void setRow0(int row0) {
            this.row0 = row0;
        }

        public int getCol0() {
            return col0;
        }

        public void setCol0(int col0) {
            this.col0 = col0;
        }

        public int getRow1() {
            return row1;
        }

        public void setRow1(int row1) {
            this.row1 = row1;
        }

        public int getCol1() {
            return col1;
        }

        public void setCol1(int col1) {
            this.col1 = col1;
        }

        public int getRow2() {
            return row2;
        }

        public void setRow2(int row2) {
            this.row2 = row2;
        }

        public int getCol2() {
            return col2;
        }

        public void setCol2(int col2) {
            this.col2 = col2;
        }

        public int getRow3() {
            return row3;
        }

        public void setRow3(int row3) {
            this.row3 = row3;
        }

        public int getCol3() {
            return col3;
        }

        public void setCol3(int col3) {
            this.col3 = col3;
        }

        @Override
        public String toString() {
            return "State{" +
                    "row0=" + row0 +
                    ", col0=" + col0 +
                    ", row1=" + row1 +
                    ", col1=" + col1 +
                    ", row2=" + row2 +
                    ", col2=" + col2 +
                    ", row3=" + row3 +
                    ", col3=" + col3 +
                    '}';
        }
    }
}

 

七种图形类：I、J、L、O、S、T、Z

 I

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class I extends Tetromino {

    public I() {
        cells[0] = new Cell(0,4, Tetris.I);
        cells[1] = new Cell(0,3, Tetris.I);
        cells[2] = new Cell(0,5, Tetris.I);
        cells[3] = new Cell(0,6, Tetris.I);

        //共有两种旋转状态
        states =new State[2];
        //初始化两种状态的相对坐标
        states[0]=new State(0,0,0,-1,0,1,0,2);
        states[1]=new State(0,0,-1,0,1,0,2,0);
    }

}

J

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class J extends Tetromino {
    public J() {
        cells[0] = new Cell(0,4, Tetris.J);
        cells[1] = new Cell(0,3, Tetris.J);
        cells[2] = new Cell(0,5, Tetris.J);
        cells[3] = new Cell(1,5, Tetris.J);

        states=new State[4];
        states[0]=new State(0,0,0,-1,0,1,1,1);
        states[1]=new State(0,0,-1,0,1,0,1,-1);
        states[2]=new State(0,0,0,1,0,-1,-1,-1);
        states[3]=new State(0,0,1,0,-1,0,-1,1);
    }
}

 L

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class L extends Tetromino {
    public L() {
        cells[0] = new Cell(0,4, Tetris.L);
        cells[1] = new Cell(0,3, Tetris.L);
        cells[2] = new Cell(0,5, Tetris.L);
        cells[3] = new Cell(1,3, Tetris.L);

        states=new State[4];
        states[0]=new State(0,0,0,-1,0,1,1,-1);
        states[1]=new State(0,0,-1,0,1,0,-1,-1);
        states[2]=new State(0,0,0,1,0,-1,-1,1);
        states[3]=new State(0,0,1,0,-1,0,1,1);
    }
}

O

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class O extends Tetromino {
    public O() {
        cells[0] = new Cell(0, 4, Tetris.O);
        cells[1] = new Cell(0, 5, Tetris.O);
        cells[2] = new Cell(1, 4, Tetris.O);
        cells[3] = new Cell(1, 5, Tetris.O);

        //无旋转状态
        states = new State[0];
    }
}

S 

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class S extends Tetromino {
    public S() {
        cells[0] = new Cell(0,4, Tetris.S);
        cells[1] = new Cell(0,5, Tetris.S);
        cells[2] = new Cell(1,3, Tetris.S);
        cells[3] = new Cell(1,4, Tetris.S);

        //共有两种旋转状态
        states =new State[2];
        //初始化两种状态的相对坐标
        states[0]=new State(0,0,0,1,1,-1,1,0);
        states[1]=new State(0,0,1,0,-1,-1,0,-1);
    }
}

T 

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class T extends Tetromino {
    public T() {
        cells[0] = new Cell(0,4, Tetris.T);
        cells[1] = new Cell(0,3, Tetris.T);
        cells[2] = new Cell(0,5, Tetris.T);
        cells[3] = new Cell(1,4, Tetris.T);

        states=new State[4];
        states[0]=new State(0,0,0,-1,0,1,1,0);
        states[1]=new State(0,0,-1,0,1,0,0,-1);
        states[2]=new State(0,0,0,1,0,-1,-1,0);
        states[3]=new State(0,0,1,0,-1,0,0,1);
    }
}

Z 

package com.zhao.demo.shape;

import com.zhao.demo.App.Tetris;
import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe
 */
public class Z extends Tetromino {
    public Z() {
        cells[0] = new Cell(1,4, Tetris.Z);
        cells[1] = new Cell(0,3, Tetris.Z);
        cells[2] = new Cell(0,4, Tetris.Z);
        cells[3] = new Cell(1,5, Tetris.Z);

        //共有两种旋转状态
        states =new State[2];
        //初始化两种状态的相对坐标
        states[0]=new State(0,0,-1,-1,-1,0,0,1);
        states[1]=new State(0,0,-1,1,0,1,1,0);
    }
}

俄罗斯方块游戏主类：Tetris

package com.zhao.demo.App;

import com.zhao.demo.block.Cell;
import com.zhao.demo.block.Tetromino;

import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.security.cert.Certificate;

/**
 * @author xiaoZhao
 * @date 2022/5/11
 * @describe 俄罗斯方块游戏主类
 */
public class Tetris extends JPanel {

    //正在下落的方块
    private Tetromino currentOne = Tetromino.randomOne();
    //将要下落的方块
    private Tetromino nextOne = Tetromino.randomOne();
    //游戏主区域
    private Cell[][] wall = new Cell[18][9];
    //声明单元格的值
    private static final int CELL_SIZE = 48;

    //游戏分数池
    int[] scores_pool = {0, 1, 2, 5, 10};
    //当前游戏的分数
    private int totalScore = 0;
    //当前消除的行数
    private int totalLine = 0;

    //游戏三种状态 游戏中、暂停、结束
    public static final int PLING = 0;
    public static final int STOP = 1;
    public static final int OVER = 2;
    //当前游戏状态值
    private int game_state;
    //显示游戏状态
    String[] show_state = {"P[pause]", "C[continue]", "S[replay]"};


    //载入方块图片
    public static BufferedImage I;
    public static BufferedImage J;
    public static BufferedImage L;
    public static BufferedImage O;
    public static BufferedImage S;
    public static BufferedImage T;
    public static BufferedImage Z;
    public static BufferedImage background;

    static {
        try {
            I = ImageIO.read(new File("images/I.png"));
            J = ImageIO.read(new File("images/J.png"));
            L = ImageIO.read(new File("images/L.png"));
            O = ImageIO.read(new File("images/O.png"));
            S = ImageIO.read(new File("images/S.png"));
            T = ImageIO.read(new File("images/T.png"));
            Z = ImageIO.read(new File("images/Z.png"));
            background = ImageIO.read(new File("images/background.png"));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void paint(Graphics g) {
        g.drawImage(background, 0, 0, null);
        //平移坐标轴
        g.translate(22, 15);
        //绘制游戏主区域
        paintWall(g);
        //绘制正在下落的四方格
        paintCurrentOne(g);
        //绘制下一个将要下落的四方格
        paintNextOne(g);
        //绘制游戏得分
        paintSource(g);
        //绘制当前游戏状态
        paintState(g);
    }

    public void start() {
        game_state = PLING;
        KeyListener l = new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                int code = e.getKeyCode();
                switch (code) {
                    case KeyEvent.VK_DOWN:
                        sortDropActive();
                        break;
                    case KeyEvent.VK_LEFT:
                        moveleftActive();
                        break;
                    case KeyEvent.VK_RIGHT:
                        moveRightActive();
                        break;
                    case KeyEvent.VK_UP:
                        rotateRightActive();
                        break;
                    case KeyEvent.VK_SPACE:
                            hadnDropActive();
                        break;
                    case KeyEvent.VK_P:
                        //判断当前游戏状态
                        if (game_state == PLING) {
                            game_state = STOP;
                        }
                        break;
                    case KeyEvent.VK_C:
                        if (game_state == STOP) {
                            game_state = PLING;
                        }
                        break;
                    case KeyEvent.VK_S:
                        //重新开始
                        game_state = PLING;
                        wall = new Cell[18][9];
                        currentOne = Tetromino.randomOne();
                        nextOne = Tetromino.randomOne();
                        totalScore = 0;
                        totalLine = 0;
                        break;
                }
            }
        };
        //将窗口设置为焦点
        this.addKeyListener(l);
        this.requestFocus();

        while (true) {
            if (game_state == PLING) {
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                if (camDrop()) {
                    currentOne.moveDrop();
                } else {
                    landToWall();
                    destroyLine();
                    if (isGameOver()) {
                        game_state = OVER;
                    } else {
                        //游戏没有结束
                        currentOne = nextOne;
                        nextOne = Tetromino.randomOne();
                    }
                }
            }
            repaint();
        }
    }

    //创建顺时针旋转
    public void rotateRightActive() {
        currentOne.rotateRight();
        if (outOFBounds() || coincide()) {
            currentOne.rotateLeft();
        }
    }

    //瞬间下落
    public void hadnDropActive() {
        while (true) {
            //判断能否下落
            if (camDrop()) {
                currentOne.moveDrop();
            } else {
                break;
            }
        }
        //嵌入到墙中
        landToWall();
        destroyLine();
        if (isGameOver()) {
            game_state = OVER;
        } else {
            //游戏没有结束
            currentOne = nextOne;
            nextOne = Tetromino.randomOne();
        }
    }

    //按键一次，下落一格
    public void sortDropActive() {
        if (camDrop()) {
            //当前四方格下落一格
            currentOne.moveDrop();
        } else {
            landToWall();
            destroyLine();
            if (isGameOver()) {
                game_state = OVER;
            } else {
                //游戏没有结束
                currentOne = nextOne;
                nextOne = Tetromino.randomOne();
            }
        }
    }

    //单元格嵌入墙中
    private void landToWall() {
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int row = cell.getRow();
            int col = cell.getCol();
            wall[row][col] = cell;
        }
    }

    //判断四方格能否下落
    public boolean camDrop() {
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int row = cell.getRow();
            int col = cell.getCol();
            //判断是否到达底部
            if (row == wall.length - 1) {
                return false;
            } else if (wall[row + 1][col] != null) {
                return false;
            }
        }
        return true;
    }

    //消除行
    public void destroyLine() {
        int line = 0;
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int row = cell.getRow();
            if (isFullLine(row)) {
                line++;
                for (int i = row; i > 0; i--) {
                    System.arraycopy(wall[i - 1], 0, wall[i], 0, wall[0].length);
                }
                wall[0] = new Cell[9];
            }
        }
        //分数池获取分数，累加到总分
        totalScore += scores_pool[line];
        //总行数
        totalLine += line;
    }

    //判断当前行是否已经满了
    public boolean isFullLine(int row) {
        Cell[] cells = wall[row];
        for (Cell cell : cells) {
            if (cell == null) {
                return false;
            }
        }
        return true;
    }

    //判断游戏是否结束
    public boolean isGameOver() {
        Cell[] cells = nextOne.cells;
        for (Cell cell : cells) {
            int row = cell.getRow();
            int col = cell.getCol();
            if (wall[row][col] != null) {
                return true;
            }
        }
        return false;
    }

    private void paintState(Graphics g) {
        if (game_state == PLING) {
            g.drawString(show_state[PLING], 500, 660);
        } else if (game_state == STOP) {
            g.drawString(show_state[STOP], 500, 660);
        } else {
            g.drawString(show_state[OVER], 500, 660);
            g.setColor(Color.RED);
            g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 60));
            g.drawString("GAME OVER!", 30, 400);
        }
    }

    private void paintSource(Graphics g) {
        g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 30));
        g.drawString("分数: " + totalScore, 500, 250);
        g.drawString("行数: " + totalLine, 500, 430);
    }

    private void paintNextOne(Graphics g) {
        Cell[] cells = nextOne.cells;
        for (Cell cell : cells) {
            int x = cell.getCol() * CELL_SIZE + 370;
            int y = cell.getRow() * CELL_SIZE + 25;
            g.drawImage(cell.getImage(), x, y, null);
        }
    }

    private void paintCurrentOne(Graphics g) {
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int x = cell.getCol() * CELL_SIZE;
            int y = cell.getRow() * CELL_SIZE;
            g.drawImage(cell.getImage(), x, y, null);
        }
    }

    private void paintWall(Graphics g) {
        for (int i = 0; i < wall.length; i++) {
            for (int j = 0; j < wall[i].length; j++) {
                int x = j * CELL_SIZE;
                int y = i * CELL_SIZE;
                Cell cell = wall[i][j];
                //判断是否有小方块
                if (cell == null) {
                    g.drawRect(x, y, CELL_SIZE, CELL_SIZE);
                } else {
                    g.drawImage(cell.getImage(), x, y, null);
                }
            }
        }
    }

    //判断是否出界
    public boolean outOFBounds() {
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int col = cell.getCol();
            int row = cell.getRow();
            if (row < 0 || row > wall.length - 1 || col < 0 || col > wall[0].length-1) {
                return true;
            }
        }
        return false;
    }

    //按键一次，左移一次
    public void moveleftActive() {
        currentOne.moveLeft();
        //判断是否越界或重合
        if (outOFBounds() || coincide()) {
            currentOne.moveRight();
        }
    }

    //按键一次，右移一次
    public void moveRightActive() {
        currentOne.moveRight();
        //判断是否越界或重合
        if (outOFBounds() || coincide()) {
            currentOne.moveLeft();
        }
    }

    //判断是否重合
    public boolean coincide() {
        Cell[] cells = currentOne.cells;
        for (Cell cell : cells) {
            int row = cell.getRow();
            int col = cell.getCol();
            if (wall[row][col] != null) {
                return true;
            }
        }
        return false;
    }

    public static void main(String[] args) {
        JFrame jFrame = new JFrame("俄罗斯方块");
        //创建游戏界面
        Tetris panel = new Tetris();
        jFrame.add(panel);
        //设置可见
        jFrame.setVisible(true);
        //设置窗口大小
        jFrame.setSize(810, 940);
        //设置剧中
        jFrame.setLocationRelativeTo(null);
        //设置窗口关闭时停止
        jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //游戏主要开始逻辑
        panel.start();
    }
}

三、效果展示

游戏开始，方快下落，右边区域展示即将下落的方块图、分数、消除的行数以及游戏切换的状态。

按下空格键，方块瞬间下落， 按下P键游戏暂停，消除一行分数为1（此处由分数池进行控制）

  按下C键游戏继续。

方块占满，游戏结束，此时可以按下S键重新开始游戏。