menu.java

手机ACT游戏全代码（包括代码和jar和jad）

import javax.microedition.lcdui.*;
import java.io.*;
import javax.microedition.lcdui.game.Sprite;


public class Menu
{
       public Menu()
       {
              menuIndex = 0;
              try
              {
                     backGround = Image.createImage("/menu.png");
                     other = Image.createImage("/other.png");              }
              catch (IOException ex)
              {
              }
              piece = new Image[data.length];
              for(int i = 0;i < data.length;i ++){
                     piece[i] = Image.createImage(other,data[i][1],data[i][2],data[i][3],data[i][4],Sprite.TRANS_NONE);
              }

       }

       static final int data[][]={
           {0,0,0,176,75},     //索引:[0]标题
           {0,0,76,118,21},    //索引:[1]选择框
           {0,0,97,60,19},     //索引:[2]开始
           {0,67,97,66,19},    //索引:[3]关于
           {0,0,116,88,19},    //索引:[4]控制
           {0,91,116,42,21},   //索引:[5]退出
           {0,0,137,99,8},     //索引:[6]press any key
           {0,0,145,67,13}     //索引:[7]loading
           };

       Image backGround;
       Image other;
       Image[] piece;

       private final int itemNum = 4;

       void paint(Graphics g){
              g.drawImage(backGround,GameCanvas.SCREEN_WIDTH>>1,GameCanvas.SCREEN_HEIGHT>>1,Graphics.HCENTER|Graphics.VCENTER);

              g.drawImage(piece[0],GameCanvas.SCREEN_WIDTH>>1,0,Graphics.HCENTER|Graphics.TOP);

              changeRoleFrameIndex();
              for(int i = 0;i < 4;i++){
                     if(i == menuIndex){
                            Tools.drawNpcItemData(g,OBJECT,0,frameIndex,15,piece[0].getHeight()+(i+1)*(piece[1].getHeight()+5)-10,true);
                            Tools.drawNpcItemData(g,OBJECT,0,frameIndex,GameCanvas.SCREEN_WIDTH-15,piece[0].getHeight()+(i+1)*(piece[1].getHeight()+5)-10,true);
                     }
                     g.drawImage(piece[1],GameCanvas.SCREEN_WIDTH>>1,piece[0].getHeight()+i*(piece[1].getHeight()+5),Graphics.HCENTER|Graphics.TOP);
                     g.drawImage(piece[2+i],GameCanvas.SCREEN_WIDTH>>1,piece[0].getHeight()+i*(piece[1].getHeight()+5),Graphics.HCENTER|Graphics.TOP);
              }


       }

       int menuIndex;
       int keyPress(int keyCode)
       {
              switch (keyCode)
              {
                     case GameCanvas.UP:
                            menuIndex = --menuIndex > 0 ? menuIndex : itemNum - 1;
                            break;
                     case GameCanvas.DOWN:
                            menuIndex = ++menuIndex < itemNum ? menuIndex : 0;
                            break;
                     case GameCanvas.FIRE:
                            return menuIndex;
              }
              return -1;
       }
       private int frameIndex;
       private int aniIndex; //切换帧使用到的中间过渡变量
       private final int OBJECT = 6;

       private final void changeRoleFrameIndex()
       {

              if (aniIndex >= Data.frameItemIndex[OBJECT][0].length)
              {

                            aniIndex = 0;

              }
              frameIndex = Data.frameItemIndex[OBJECT][0][aniIndex];
              aniIndex++;
       }

}