J2ME 贪食蛇游戏源码

package snakegame; import javax.microedition.lcdui.*; /** * 主菜单类 * * @author kf156(亚日) * */ public class MainMenu { public static final byte MAINMENU_OPEN = 0;// 选项界面 // public static final byte MAINMENU_CONTINUE = 1;// 继续游戏 public static final byte MAINMENU_SETING = 1;// 游戏设置 public static final byte MAINMENU_HELLP = 2;// 游戏帮助 public static final byte MAINMENU_ABOUT = 3;// 游戏关于 public static final byte MAINMENU_TOP = 4;// 排行榜 public static final byte MAINMENU_EXIT = 5;// 退出游戏 public int mm_state = 0;// 状态 public int index, level_Index;// 索引、难度分数索引 public static int set_Index;// 难度设置索引 public String[] levelStr = { "四平八稳", "眼疾手快", "箭步如飞" }; public MainMenu() { } public void init() { mm_state = MAINMENU_OPEN;// 选项界面 // 图片加载 if (Tools.mmImg[0] == null) try { Tools.mmImg[0] = Image.createImage("/images/button.png"); Tools.mmImg[1] = Image.createImage("/images/main.png"); Tools.mmImg[2] = Image.createImage("/images/splash.png"); Tools.mmImg[3] = Image.createImage("/images/ground.png"); Tools.mmImg[4] = Image.createImage("/images/number1.png"); Tools.mmImg[5] = Image.createImage("/images/main1.png"); Tools.mmImg[6] = Image.createImage("/images/main2.png"); Tools.mmImg[7] = Image.createImage("/images/set.png"); Tools.mmImg[8] = Image.createImage("/images/number.png"); } catch (Exception e) { System.out.println("load main menu image error:" + e); } } /** * 逻辑判断 * * @param keycode */ public void update(int keycode) { switch (mm_state) { case MAINMENU_OPEN:// 选项界面 switch (keycode) { case GameCanvas.KEY_UP: index--; if (index < 0) index = 5; break; case GameCanvas.KEY_DOWN: index++; if (index > 5) index = 0; break; case GameCanvas.KEY_SOFT3: case GameCanvas.KEY_SOFT1: if (index == 0) {// 进入游戏 // 根据难易度设置 if (set_Index == 0) GameCanvas.gc.speed = 120; else if (set_Index == 1) GameCanvas.gc.speed = 90; else if (set_Index == 2) GameCanvas.gc.speed = 50; GameCanvas.getGameCanvas().setNextState( GameCanvas.SCREEN_GAMEWORLD); } else if (index == MAINMENU_EXIT) {// 退出 GameMIDlet.quitApp(); } else { mm_state = index;// 进入相应界面 } break; } break; case MAINMENU_SETING:// 难度设置 switch (keycode) { case GameCanvas.KEY_UP: set_Index--; if (set_Index < 0) set_Index = 2; break; case GameCanvas.KEY_DOWN: set_Index++; if (set_Index > 2) set_Index = 0; break; case GameCanvas.KEY_SOFT3: case GameCanvas.KEY_SOFT1: mm_state = MAINMENU_OPEN; break; } break; case MAINMENU_HELLP:// 帮助 if (keycode == GameCanvas.KEY_SOFT1 || keycode == GameCanvas.KEY_SOFT3) { mm_state = MAINMENU_OPEN; } break; case MAINMENU_ABOUT:// 关于 if (keycode == GameCanvas.KEY_SOFT1 || keycode == GameCanvas.KEY_SOFT3) { mm_state = MAINMENU_OPEN; } break; case MAINMENU_TOP:// 排行榜 switch (keycode) { case GameCanvas.KEY_LEFT: level_Index--; if (level_Index < 0) level_Index = 2; break; case GameCanvas.KEY_RIGHT: level_Index++; if (level_Index > 2) level_Index = 0; break; case GameCanvas.KEY_SOFT3: case GameCanvas.KEY_SOFT1: mm_state = MAINMENU_OPEN; break; } break; } } /** * 绘制 * * @param g */ public void draw(Graphics g) { // 背景填充 g.setColor(0); g.fillRect(0, 0, Tools.SCREEN_W, Tools.SCREEN_H); // 设置字体 g.setFont(Tools.font); switch (mm_state) { case MAINMENU_OPEN:// 选项界面 // 背景 g.drawImage(Tools.mmImg[2], 0, 0, 20); // 选项 g.drawImage(Tools.mmImg[1], 20, 70, 20); // 当前索引 Tools.drawClip(g, 20, 70 + index * 12, 49, 12, index, Tools.mmImg[5]); break; case MAINMENU_SETING:// 设置界面 // 标题 Tools.drawClip(g, (Tools.SCREEN_W >> 1) - 50, 20, 100, 24, 1, Tools.mmImg[6]); // 绘制难度 for (int i = 0; i < levelStr.length; i++) { if (i == set_Index) g.setColor(0xff0000); else g.setColor(0xffffff); g.drawString(levelStr[i], Tools.SCREEN_W >> 1, 80 + i * 50, 17); } break; case MAINMENU_HELLP:// 帮助 // 标题 Tools.drawClip(g, Tools.SCREEN_W / 2 - 50, 20, 100, 24, 0, Tools.mmImg[6]); // 帮助文档 g.setColor(0xffffff); Tools.drawWrapString(g, Tools.helpStr, 3, 70, Tools.SCREEN_W, Tools.font); break; case MAINMENU_ABOUT:// 关于 // 标题 Tools.drawClip(g, Tools.SCREEN_W / 2 - 50, 20, 100, 24, 2, Tools.mmImg[6]); // 感言 g.setColor(0xffffff); Tools.drawWrapString(g, Tools.aboutStr, 3, 70, Tools.SCREEN_W, Tools.font); break; case MAINMENU_TOP:// 高分榜 当时还不会RMS，所以这里显示的是假数据 // 标题 Tools.drawClip(g, Tools.SCREEN_W / 2 - 50, 20, 100, 24, 3, Tools.mmImg[6]); // g.setColor(0xfff000); g.drawString("名次　　　名字　　　分数", Tools.SCREEN_W >> 1, 90, 17); Tools.drawClip(g, 30, 60, 180, 15, 0, Tools.mmImg[7]); if (level_Index == 0) { Tools.drawClip(g, 30, 60, 60, 15, 3, Tools.mmImg[7]); // 分数 g.setColor(0xffffff); g.drawString("1　　　kf156　　　1500", Tools.SCREEN_W >> 1, 120, 17); g.drawString("2　　　kf156　　　1380", Tools.SCREEN_W >> 1, 140, 17); g.drawString("3　　　kf156　　　1290", Tools.SCREEN_W >> 1, 160, 17); g.drawString("4　　　kf156　　　1120", Tools.SCREEN_W >> 1, 180, 17); g.drawString("5　　　kf156　　　1070", Tools.SCREEN_W >> 1, 200, 17); } else if (level_Index == 1) { Tools.drawClip(g, 90, 60, 60, 15, 4, Tools.mmImg[7]); // 分数 g.setColor(0xffffff); g.drawString("1　　　kf156　　　1340", Tools.SCREEN_W >> 1, 120, 17); g.drawString("2　　　kf156　　　1320", Tools.SCREEN_W >> 1, 140, 17); g.drawString("3　　　kf156　　　1150", Tools.SCREEN_W >> 1, 160, 17); g.drawString("4　　　kf156　　　1120", Tools.SCREEN_W >> 1, 180, 17); g.drawString("5　　　kf156　　　1050", Tools.SCREEN_W >> 1, 200, 17); } else if (level_Index == 2) { Tools.drawClip(g, 150, 60, 60, 15, 5, Tools.mmImg[7]);// 分数 g.setColor(0xffffff); g.drawString("1　　　kf156　　　1240", Tools.SCREEN_W >> 1, 120, 17); g.drawString("2　　　kf156　　　1220", Tools.SCREEN_W >> 1, 140, 17); g.drawString("3　　　kf156　　　1160", Tools.SCREEN_W >> 1, 160, 17); g.drawString("4　　　kf156　　　1070", Tools.SCREEN_W >> 1, 180, 17); g.drawString("5　　　kf156　　　1030", Tools.SCREEN_W >> 1, 200, 17); } break; } if (mm_state != MAINMENU_OPEN) {// 非选项菜单时显示 // 绘制下边界 g.setColor(182, 182, 170); g.fillRect(0, Tools.SCREEN_H - 15, Tools.SCREEN_W, 15);// 设置下边界高15 g.setColor(255, 255, 255); g.fillRect(0, Tools.SCREEN_H - 14, Tools.SCREEN_W, 1); g.setColor(106, 106, 106); g.fillRect(0, Tools.SCREEN_H - 15, Tools.SCREEN_W, 1); // 绘制软键 if (mm_state == MAINMENU_SETING) {// 当为设置时，显示保存设置 Tools.drawClip(g, 9, Tools.SCREEN_H - 15, 45, 15, 3, Tools.mmImg[0]); } else {// 回主菜单 Tools.drawClip(g, 9, Tools.SCREEN_H - 15, 45, 15, 0, Tools.mmImg[0]); } } } }