java小程序－俄罗斯方块源代码

import java.awt.*; import java.awt.event.*; //游戏画布类 public class GameCanvas extends Canvas implements KeyListener { final int unitSize = 30; //小方块边长 int rowNum; //正方格的行数 int columnNum; //正方格的列数 int maxAllowRowNum; //允许有多少行未削 int blockInitRow; //新出现块的起始行坐标 int blockInitCol; //新出现块的起始列坐标 int[][] scrArr; //屏幕数组 Block b; //对方块的引用 //画布类的构造方法 GameCanvas() { rowNum = 15; columnNum = 10; maxAllowRowNum = rowNum - 2; b = new Block(this); blockInitRow = rowNum - 1; blockInitCol = columnNum / 2 - 2; scrArr = new int[32][32]; } //初始化屏幕，并将屏幕数组清零的方法 void initScr() { for (int i = 0; i < rowNum; i++) for (int j = 0; j < columnNum; j++) scrArr[i][j] = 0; b.reset(); repaint(); } //重新刷新画布方法 public void paint(Graphics g) { for (int i = 0; i < rowNum; i++) for (int j = 0; j < columnNum; j++) drawUnit(i, j, scrArr[i][j]); } //画方块的方法 public void drawUnit(int row, int col, int type) { scrArr[row][col] = type; Graphics g = getGraphics(); switch (type) { //表示画方快的方法 case 0: g.setColor(Color.black); break; //以背景为颜色画 case 1: g.setColor(Color.blue); break; //画正在下落的方块 case 2: g.setColor(Color.magenta); break; //画已经落下的方法 } g.fill3DRect(col * unitSize, getSize().height - (row + 1) * unitSize, unitSize, unitSize, true); g.dispose(); } public Block getBlock() { return b; //返回block实例的引用 } //返回屏幕数组中(row,col)位置的属性值 public int getScrArrXY(int row, int col) { if (row < 0 || row >= rowNum || col < 0 || col >= columnNum) return ( -1); else return (scrArr[row][col]); } //返回新块的初始行坐标方法 public int getInitRow() { return (blockInitRow); //返回新块的初始行坐标 } //返回新块的初始列坐标方法 public int getInitCol() { return (blockInitCol); //返回新块的初始列坐标 } //满行删除方法 void deleteFullLine() { int full_line_num = 0; int k = 0; for (int i = 0; i < rowNum; i++) { boolean isfull = true; L1:for (int j = 0; j < columnNum; j++) if (scrArr[i][j] == 0) { k++; isfull = false; break L1; } if (isfull) full_line_num++; if (k != 0 && k - 1 != i && !isfull) for (int j = 0; j < columnNum; j++) { if (scrArr[i][j] == 0) drawUnit(k - 1, j, 0); else drawUnit(k - 1, j, 2); scrArr[k - 1][j] = scrArr[i][j]; } } for (int i = k - 1; i < rowNum; i++) { for (int j = 0; j < columnNum; j++) { drawUnit(i, j, 0); scrArr[i][j] = 0; } } Russia_Block.score += full_line_num; Russia_Block.scoreField.setText("" + Russia_Block.score); } //判断游戏是否结束方法 boolean isGameEnd() { for (int col = 0; col < columnNum; col++) { if (scrArr[maxAllowRowNum][col] != 0) return true; } return false; } public void keyTyped(KeyEvent e) {} public void keyReleased(KeyEvent e) {} //处理键盘输入的方法 public void keyPressed(KeyEvent e) { if (!Russia_Block.isPlay) return; switch (e.getKeyCode()) { case KeyEvent.VK_DOWN: b.fallDown(); break; case KeyEvent.VK_LEFT: b.leftMove(); break; case KeyEvent.VK_RIGHT: b.rightMove(); break; case KeyEvent.VK_SPACE: b.leftTurn(); break; case KeyEvent.VK_PAUSE: b.pause(); break; case KeyEvent.VK_ENTER: b.retn(); break; case KeyEvent.VK_ESCAPE: b.esc(); break; } } }