J2ME拼图游戏源代码【内附指导书】

/* * 游戏执行中的暂停和重新开始功能，暂停时既要暂停计时，也要暂停计步， * 开始后两个计数器同时开启，并不要影响暂停之前的状态，除了应用程序命令按键和退出按键外，其余键都不起作用 * 如各个图片精灵的位置，各个图片精灵索引的数组，及游戏的选项设置 */ import javax.microedition.lcdui.*; import javax.microedition.lcdui.game.*; import javax.microedition.rms.*; import java.util.*; import java.lang.Math; import java.io.*; import javax.microedition.media.*; public class StartCanvas extends GameCanvas implements Runnable, CommandListener{ private Pintu midlet; private Image imgGame, imgDigit, imgClock, imgStep, imgWin; public Command pauseCmd, restartCmd, backCmd; private int rowCol; private final int BLOCKWH, STARTX, STARTY; private int outLineWidth, outLineHeight; protected boolean stoped = false, successed = false; private int delay = 200;// 定义线程休眠时间间隔 protected final int WIDTH, HEIGHT; private final int LEN = 6;// 时间计数器和步骤计数器的位数,预设6位，太长无意义 public long startTime, PlayTime;// 游戏开始时间,结束时间,总共用时; public int stepNum = 0;// 行走步数 private int index, upIndex, downIndex, leftIndex, rightIndex; private Sprite upSprite, downSprite, leftSprite, rightSprite; public Sprite sClock, sStep, sImagePreview, sWin;// 计时，计步标识的图片精灵 private Sprite[] spriteArray, spriteTime, spriteStep; private int[] sequenceArray; protected LayerManager startLayer; private Thread t; public StartCanvas(Pintu m) { super(true); midlet = m; try { imgGame = Image.createImage(midlet.imgPath+ midlet.nameArray[midlet.selectedPicIndex]); imgDigit = Image.createImage(midlet.imgPath + "digit.png"); imgClock = Image.createImage(midlet.imgPath + "clock.png"); imgStep = Image.createImage(midlet.imgPath + "step.png"); } catch (IOException e) { e.printStackTrace(); } pauseCmd = new Command("暂停", Command.SCREEN, 1); restartCmd = new Command("开始", Command.SCREEN, 1); backCmd = new Command("返回", Command.BACK, 1); this.addCommand(pauseCmd); this.addCommand(backCmd); this.setCommandListener(this); WIDTH = getWidth(); HEIGHT = getHeight(); rowCol = midlet.selectedLevelIndex;// 级别数表示每行每列的块数 index = rowCol * (rowCol + 1) - 1; outLineWidth = Pintu.G_WIDTH;// 外边框的高等于WIDTHHEIGHT BLOCKWH = outLineWidth / rowCol; outLineHeight = Pintu.G_HEIGHT + BLOCKWH;// 外边框的高等于WIDTHHEIGHT和一个块的高度 spriteArray = new Sprite[rowCol * rowCol];// 动态创建精灵数组 STARTX = (WIDTH - outLineWidth) / 2; STARTY = (HEIGHT - outLineHeight) / 2; // ////////////////////////////////////////////////////////////// sequenceArray = new int[rowCol * (rowCol + 1)]; for (int i = 0; i < rowCol * rowCol; i++) { sequenceArray[i] = i;// 将整形数组与精灵数组绑定 } for (int i = rowCol * rowCol; i < rowCol * (rowCol + 1) - 1; i++) { sequenceArray[i] = -2;// 最后一行的前(rowCol-1)块作为不动块 } sequenceArray[rowCol * (rowCol + 1) - 1] = -1;// 最后一块做为图片移动的缓冲块 initGameInfo(); } public void start() { extractImg(imgGame, BLOCKWH, BLOCKWH); randomSequence(); //testSequence(); setPosition(); startTime = System.currentTimeMillis(); //如果游戏开始时，玩家昵称没有设置，则随机生成一个player加一个随机数的昵称 if(midlet.playerNickName == null){ Random rand = new Random(); midlet.playerNickName = "player" + rand.nextInt(100) ; } t = new Thread(this); t.start(); } // 定期更新时间,时间每隔1秒更新一次 public void updatePlayTime() { if (!stoped) { PlayTime = (System.currentTimeMillis() - startTime) / 1000; String map = Long.toString(PlayTime); int mapLen = map.length(); for (int i = 0; i < LEN; i++) { if (i < LEN - mapLen) spriteTime[i].setFrame(0); else { int t = Integer.parseInt((String.valueOf(map.charAt(i - (LEN - mapLen))))); spriteTime[i].setFrame(t); } } } } // 步数每走一步更新一次 public void updateStepNum() { if (!stoped) { String map = Integer.toString(stepNum); int mapLen = map.length(); for (int i = 0; i < LEN; i++) { if (i < LEN - mapLen) spriteStep[i].setFrame(0); else { int t = Integer.parseInt((String.valueOf(map.charAt(i - (LEN - mapLen))))); spriteStep[i].setFrame(t); } } } } // 初始化游戏控制及显示信息 public void initGameInfo() { startLayer = new LayerManager(); spriteTime = new Sprite[LEN]; spriteStep = new Sprite[LEN]; for (int i = 0; i < LEN; i++) { spriteTime[i] = new Sprite(imgDigit, 9, 12); spriteTime[i].setPosition(22 + i * 8, 6); startLayer.append(spriteTime[i]); spriteStep[i] = new Sprite(imgDigit, 9, 12); spriteStep[i].setPosition(WIDTH - 64 + i * 8, 6); startLayer.append(spriteStep[i]); } sImagePreview = new Sprite(resizeImage(imgGame, BLOCKWH - 4, BLOCKWH - 4)); sImagePreview.setPosition(STARTX + 2, STARTY + rowCol * BLOCKWH + 3); startLayer.append(sImagePreview); sClock = new Sprite(imgClock); sClock.setPosition(5, 6); startLayer.append(sClock); sStep = new Sprite(imgStep); sStep.setPosition(WIDTH - 80, 6); startLayer.append(sStep); } // 绘制背景网格 public void drawGrids(Graphics g) { g.setColor(0, 0, 255); g.setStrokeStyle(Graphics.SOLID); for (int i = STARTX; i < STARTX + outLineWidth - 3; i += BLOCKWH) g.drawLine(i, STARTY, i, STARTY + outLineHeight - BLOCKWH); for (int j = STARTY; j < STARTY + outLineWidth - 3; j += BLOCKWH) g.drawLine(STARTX, j, STARTX + outLineWidth, j); } // 将预览图片压缩到合适大小,更多图片缩放函数参考：http://ajava.org/course/j2me/8503.html public Image resizeImage(Image src, int desW, int desH) { Image desImg = null; int srcW = src.getWidth(); // 原始图像宽 int srcH = src.getHeight(); // 原始图像高 int[] srcBuf = new int[srcW * srcH]; // 原始图片像素信息缓存 src.getRGB(srcBuf, 0, srcW, 0, 0, srcW, srcH); // 计算插值表 int[] tabY = new int[desH]; int[] tabX = new int[desW]; int sb = 0; int db = 0; int tems = 0; int temd = 0; int distance = srcH > desH ? srcH : desH; for (int i = 0; i <= distance; i++) { /* 垂直方向 */ tabY[db] = sb; tems += srcH; temd += desH; if (tems > distance) { tems -= distance; sb++; } if (temd > distance) { temd -= distance; db++; } } sb = 0; db = 0; tems = 0; temd = 0; distance = srcW > desW ? srcW : desW; for (int i = 0; i <= distance; i++) { /* 水平方向 */ tabX[db] = (short) sb; tems += srcW; temd += desW; if (tems > distance) { tems -= distance; sb++; } if (temd > distance) { temd -= distance; db++; } } // 生成放大缩小后图形像素buf int[] desBuf = new int[desW * desH]; int dx = 0; int dy = 0; int sy = 0; int oldy = -1; for (int i = 0; i < desH; i++) { if (oldy == tabY[i]) { System.arraycopy(desBuf, dy - desW, desBuf, dy, desW); } else { dx = 0; for (int j = 0; j < desW; j++) { desBuf[dy + dx] = srcBuf[sy + tabX[j]]; dx++; } sy += (tabY[i] - oldy) * srcW; } oldy = tabY[i]; dy += desW; } // 生成图片 desImg = Image.createRGBImage(desBuf, desW, desH, false); return desImg; } // 保存完成任务的玩家的游戏信息--所用时间和步数,将其加入用久存储RMS， // 并对前10名进行排序，用时最少，且步数最少的排最前 public void savePlayerInfo() { try { RecordStore rs = RecordStore.openRecordStore("Rank", true); if(rs.getNumRecords()>=9){ rs.closeRecordStore(); return; } else{ Player player = new Player(midlet.playerNickName, PlayTime, stepNum); byte[] result = player.toBytes(); rs.addRecord(result, 0, result.length); rs.closeRecordStore(); } } catch (RecordStoreFullException rsfe) { } catch (Recor