Java小游戏编程：俄罗斯方块源代码 |21xrx.com

Java小游戏编程：俄罗斯方块源代码

2023-06-17 00:32:24 深夜i 52 0

Java 小游戏俄罗斯方块

Java小游戏编程已经成为许多开发者的热门领域。其中，俄罗斯方块是一个经典的游戏，也是很多人喜欢玩的游戏之一。在这里，我们将分享俄罗斯方块的Java源代码，让您可以自己编写和定制自己的游戏。通过这篇文章，您将学习到如何使用Java编程语言来开发自己的俄罗斯方块游戏。

首先，您需要安装Java开发工具包（JDK）以及Java集成开发环境（IDE）。在这里，我们使用Eclipse IDE来演示。

下面是俄罗斯方块源代码的实现。代码中包含了游戏窗口的设置、方块的随机生成、消除行等主要功能代码。

代码详见：

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Tetris extends JPanel implements Runnable {
  private static final long serialVersionUID = -8715353373678321308L;
  private final Point[][][] Tetraminos = {
      // I-Piece
      {
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(3, 1) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(1, 3) },
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(3, 1) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(1, 3) }
      },
      // J-piece
      {
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(2, 0) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(2, 2) },
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(0, 2) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(0, 0) }
      },
      // L-piece
      {
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(2, 2) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(0, 2) },
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(0, 0) },
        { new Point(1, 0), new Point(1, 1), new Point(1, 2), new Point(2, 0) }
      },
      // O-piece
      {
        { new Point(0, 0), new Point(0, 1), new Point(1, 0), new Point(1, 1) },
        { new Point(0, 0), new Point(0, 1), new Point(1, 0), new Point(1, 1) },
        { new Point(0, 0), new Point(0, 1), new Point(1, 0), new Point(1, 1) },
        { new Point(0, 0), new Point(0, 1), new Point(1, 0), new Point(1, 1) }
      },
      // S-piece
      {
        { new Point(1, 0), new Point(2, 0), new Point(0, 1), new Point(1, 1) },
        { new Point(1, 0), new Point(1, 1), new Point(2, 1), new Point(2, 2) },
        { new Point(1, 1), new Point(2, 1), new Point(0, 2), new Point(1, 2) },
        { new Point(0, 0), new Point(0, 1), new Point(1, 1), new Point(1, 2) }
      },
      // T-piece
      {
        { new Point(1, 0), new Point(0, 1), new Point(1, 1), new Point(2, 1) },
        { new Point(1, 0), new Point(1, 1), new Point(2, 1), new Point(1, 2) },
        { new Point(0, 1), new Point(1, 1), new Point(2, 1), new Point(1, 2) },
        { new Point(1, 0), new Point(0, 1), new Point(1, 1), new Point(1, 2) }
      },
      // Z-piece
      {
        { new Point(0, 0), new Point(1, 0), new Point(1, 1), new Point(2, 1) },
        { new Point(2, 0), new Point(2, 1), new Point(1, 1), new Point(1, 2) },
        { new Point(0, 1), new Point(1, 1), new Point(1, 2), new Point(2, 2) },
        { new Point(1, 0), new Point(1, 1), new Point(0, 1), new Point(0, 2) }
      }
    };
  private final Color[] tetraminoColors = Color.yellow;
  private Point pieceOrigin;
  private int currentPiece;
  private int nextPiece;
  private Point[][] currentPieceShape;
  private ArrayList
  placedPieces;
 
  private long score;
  private Color[][] well;
  private final int GAME_WIDTH = 10;
  private final int GAME_HEIGHT = 20;
  private boolean gameOn = false;
  private Thread gameThread;
  public void init() {
    well = new Color[GAME_WIDTH][GAME_HEIGHT];
    placedPieces = new ArrayList
  ();
 
    gameOn = true;
    pieceOrigin = new Point(5, 2);
    score = 0;
    newPiece();
  }
  public void newPiece() {
    Random r = new Random();
    currentPiece = nextPiece;
    nextPiece = r.nextInt(7);
    currentPieceShape = Tetraminos[currentPiece];
    
    // move piece into position
    pieceOrigin.y = 0;
    pieceOrigin.x = (GAME_WIDTH / 2) + (currentPiece == 3 ? 0 : 1);
    // check if game is over
    if(!isPiecePlaced(pieceOrigin.x, pieceOrigin.y, currentPieceShape))
      gameOn = false;
      return;
    
  }
  public boolean isPiecePlaced(int x, int y, Point[][] piece) {
    for (Point p : piece[0]) {
      if (well[p.x + x][p.y + y] != null)
        return false;
    }
    return true;
  }
  public void rotatePiece(boolean clockwise) {
    Point[][] rotatedPiece = new Point[4][4];
    for (int i = 0; i < currentPieceShape.length; i++) {
      for (int j = 0; j < currentPieceShape[i].length; j++) {
        rotatedPiece[i][j] = currentPieceShape[j][currentPieceShape.length - i - 1];
      }
    }
    if (isPiecePlaced(pieceOrigin.x, pieceOrigin.y, rotatedPiece))
      currentPieceShape = rotatedPiece;
    
  }
  public void movePiece(int x, int y) {
    if (isPiecePlaced(pieceOrigin.x + x, pieceOrigin.y + y, currentPieceShape)) {
      pieceOrigin.x += x;
      pieceOrigin.y += y;
    }
  }
  public void dropPiece() {
    int newY = pieceOrigin.y;
    while (newY < GAME_HEIGHT-1) {
      if (!isPiecePlaced(pieceOrigin.x, newY + 1, currentPieceShape))
         break;
      
      newY++;
    }
    placePiece(pieceOrigin.x, newY, currentPieceShape);
    newPiece();
  }
  public void placePiece(int x, int y, Point[][] piece) {
    for (Point p : piece[0]) {
      well[x + p.x][y + p.y] = tetraminoColors[currentPiece];
      placedPieces.add(new Point(x + p.x, y + p.y));
    }
    int scoreIncrement = 0;
    // check for cleared lines
    for (int i = GAME_HEIGHT-1; i >-1; i--) {
      boolean allPlaced = true;
      for (int j = 0; j < GAME_WIDTH; j++) {
        if (well[j][i] == null) allPlaced = false;
      }
      if(allPlaced) {
        scoreIncrement += 10*(GAME_HEIGHT-i);
        removeLine(i);
        i++;
      }
    }
    if (scoreIncrement > 0) {
      score += scoreIncrement;
    }
  }
  public void removeLine(int row) {
    for (int i = row-1; i > -1; i--) {
      for (int j = 0; j < GAME_WIDTH; j++) {
        well[j][i+1] = well[j][i];
        for(Point p : placedPieces) {          
          if(p.x == j && p.y == i) {
            placedPieces.remove(p);
            placedPieces.add(new Point(p.x, p.y+1));
          }
        }        
      }
    }
    for (int j = 0; j < GAME_WIDTH; j++) {
      well[j][0] = null;
      for(Point p : placedPieces) {          
        if(p.x == j && p.y == 0) {
          placedPieces.remove(p);
        }
        if(p.x == j)
          p.y--;
                
      }        
    }
  }
  public void repaint() {
    Graphics g = getGraphics();
    g.drawRect(0, 0, getWidth()-1, getHeight()-1);
    for (int i = 0; i < GAME_HEIGHT; i++) {
      for (int j = 0; j < GAME_WIDTH; j++) {
        g.setColor(well[j][i]);
        g.fillRect(j*20, i*20, 20, 20);
      }
    }
    g.setColor(Color.WHITE);
    g.drawString("Score: " + score, 300, 20);
    // draw the current piece
    g.setColor(tetraminoColors[currentPiece]);
    for (Point p : currentPieceShape[0]) {
      g.fillRect((p.x + pieceOrigin.x) * 20, (p.y + pieceOrigin.y) * 20, 20, 20);
    }
  }
  @Override
  public void run() {
    init();
    while (gameOn) {
      try {
        Thread.sleep(1000);
        movePiece(0, 1);
      } catch ( InterruptedException e ) {}
      repaint();      
    }
  }
  public static void main(String[] args) {
    JFrame f = new JFrame("Tetris");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(300, 600);
    f.add(new Tetris());
    f.setVisible(true);
  }
}

使用这些代码，您可以创建自己的俄罗斯方块游戏，并将其嵌入到各种应用程序中。如果您希望深入了解Java的游戏开发，那么这篇文章将是个很好的起点。

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