J2me 俄罗斯方块游戏 源程序 java

package com.jagie.j2me.game.ketris; import javax.microedition.lcdui.*; import java.util.Random; /** * * <p>Title: </p> * <p>Description: 该类为封装下坠物对象及其操作</p> * <p>Copyright: Copyright (c) 2004</p> * <p>Company: </p> * @author： an unknown Japanese,Jagie * @version 1.0 */ public class KetrisBlock { //各种砖块,1-7为活动砖块颜色，8为墙砖颜色 public static final int[] BRICK_COLORS = { 0x00FF0000, 0x0000FF00, 0x00FFFF00, 0x000000FF, 0x00FF00FF, 0x0000FFFF, 0x00C0DCC0, 0x00808080}; /** * blockpattern的编码规则:blockpattern表示一个下坠物体的形状,一种下坠物的颜色是固定的。 * 对于一个下坠物，用一个三维数祖表示，第一维用rot表示（旋转值），第二维用x（也就是行）,第三维用y表示（也就是列）。 * 所以 blockpattern1：田字及四种旋转形状 * blockpattern2：反L字及四种旋转形状 * blockpattern3：L字及四种旋转形状 * blockpattern4：1字及四种旋转形状 * ........................ */ protected int blockpattern1[][][] = { { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } }; protected int blockpattern2[][][] = { { { 0, 0, 1, 0} , { 0, 0, 1, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 0, 0} , { 0, 1, 1, 1} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 0, 0} , { 0, 1, 0, 0} } , { { 0, 0, 0, 0} , { 1, 1, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 0, 0} } }; protected int blockpattern3[][][] = { { { 0, 1, 0, 0} , { 0, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 1} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 1, 0} } , { { 0, 0, 0, 0} , { 0, 0, 1, 0} , { 1, 1, 1, 0} , { 0, 0, 0, 0} } }; protected int blockpattern4[][][] = { { { 0, 0, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 1, 0} } , { { 0, 0, 0, 0} , { 0, 0, 0, 0} , { 1, 1, 1, 1} , { 0, 0, 0, 0} } , { { 0, 0, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 1, 0} } , { { 0, 0, 0, 0} , { 0, 0, 0, 0} , { 1, 1, 1, 1} , { 0, 0, 0, 0} } }; protected int blockpattern5[][][] = { { { 0, 0, 0, 0} , { 1, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 1, 0} , { 0, 1, 1, 0} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 1, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 1, 0} , { 0, 1, 1, 0} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } }; protected int blockpattern6[][][] = { { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 1, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 0, 0} } , { { 0, 0, 0, 0} , { 0, 1, 1, 0} , { 1, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 0, 1, 0} , { 0, 0, 0, 0} } }; protected int blockpattern7[][][] = { { { 0, 0, 0, 0} , { 1, 1, 1, 0} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 1, 0, 0} , { 1, 1, 0, 0} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } , { { 0, 1, 0, 0} , { 1, 1, 1, 0} , { 0, 0, 0, 0} , { 0, 0, 0, 0} } , { { 0, 1, 0, 0} , { 0, 1, 1, 0} , { 0, 1, 0, 0} , { 0, 0, 0, 0} } }; private int blockpattern[][][]; /* 当前坠物形状，为以上定义的七个下坠物之一 */ private int blockNextpattern[][]; /* 下一个坠物形状，显示在游戏容器的右边 */ private int x; //blockpattern左上角x坐标,x=i表示左上角距离游戏容器左上角x轴上i个小砖块单位 private int y; //blockpattern左上角y坐标,y=i表示左上角距离游戏容器左上角y轴上i个小砖块单位 private int oldx; //x的旧值 private int oldy; //y的旧值 private int rot; //旋转值，0-3 private int oldrot; //旋转旧值 private int pattern; /* 组成当前坠物所用小砖块id(1-7),同时也表示一种下坠物形状 */ private int next; /* 组成下一个坠物所用小砖块id(1-7),同时也表示一种下坠物形状 */ private KetrisMap map; protected Random rand; /* 构造，保存map,初始化blockimage,rand,next */ public KetrisBlock(KetrisMap map) { this.map = map; rand = new Random(); next =Math.abs(rand.nextInt()) % 7 + 1; } /* 初始化 */ protected void init() { pattern = next; next = Math.abs(rand.nextInt()) % 7 + 1; /* 得到当前下坠物 */ switch (pattern) { case 1: readPattern(blockpattern1); break; case 2: readPattern(blockpattern2); break; case 3: readPattern(blockpattern3); break; case 4: readPattern(blockpattern4); break; case 5: readPattern(blockpattern5); break; case 6: readPattern(blockpattern6); break; case 7: readPattern(blockpattern7); break; } /* 得到下一个下坠物 */ switch (next) { case 1: readNextPattern(blockpattern1); break; case 2: readNextPattern(blockpattern2); break; case 3: readNextPattern(blockpattern3); break; case 4: readNextPattern(blockpattern4); break; case 5: readNextPattern(blockpattern5); break; case 6: readNextPattern(blockpattern6); break; case 7: readNextPattern(blockpattern7); break; } x = 5; /* 游戏容器内径的一半 */ y = 0; /* y坐标 */ rot = 0; //判断map数据，决定y的真正值,之所以这么处理，是因为当game over的时候，最后一个下坠物，可能只能画出一部分 //为了达到这个效果,必须让y成为一个恰当的负值 while (isCrashAtBegin()) { y--; if(y<-4){ break; } } oldx = x; oldy = y; oldrot = rot; } /** * 设置当前下坠物变量的内容 * @param nowblock int[][][] 7种下坠物常量之一 */ private void readPattern(int[][][] nowblock) { blockpattern = new int[4][4][4]; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { for (int k = 0; k < 4; k++) { blockpattern[i][j][k] = nowblock[i][j][k]; } } } } /** * 设置下一个下坠物变量的内容。只需要包存4中