www.pudn.com > j2me_Mario.rar > LPMenu.java

/** 
 * 
Title: lipeng
 
 * 
Description: 
 * You cannot remove this copyright and notice. 
 * You cannot use this file without the express permission of the author. 
 * All Rights Reserved
 
 * 
Copyright: lizhenpeng (c) 2004
 
 * 
Company: LP&P
 
 * @author lizhenpeng 
 * @version 1.1.1 
 * 
 
 * Revise History 
 * 2004.07.22 Add a menu entry demoMode V1.1.0 
 * 2004.07.22 revise a logic error on init V1.1.1 
 * 
 
 */ 
package lipeng; 
 
import javax.microedition.lcdui.Canvas; 
 
 
 
public class LPMenu 
{ 
//method 
  public LPMenu(LPIGameManager gm) 
  { 
    this.gm=gm; 
  } 
 
  private void menuSelect(int direct) 
  { 
    switch(direct) 
    { 
      case DIRECTION_UP: 
        switch(whichActive) 
        { 
          case MENU_NEW_GAME: 
            whichActive=MENU_ABOUT; 
            break; 
          case MENU_LOAD_GAME: 
            whichActive=MENU_NEW_GAME; 
            break; 
          case MENU_VOL: 
            whichActive=MENU_LOAD_GAME; 
            break; 
          case MENU_EXIT: 
            whichActive=MENU_VOL; 
            break; 
          case MENU_ABOUT: 
            whichActive=MENU_EXIT; 
            break; 
        } 
        break; 
      case DIRECTION_DOWN: 
        switch(whichActive) 
        { 
          case MENU_NEW_GAME: 
            whichActive=MENU_LOAD_GAME; 
            break; 
          case MENU_LOAD_GAME: 
            whichActive=MENU_VOL; 
            break; 
          case MENU_VOL: 
            whichActive=MENU_EXIT; 
            break; 
          case MENU_EXIT: 
            whichActive=MENU_ABOUT; 
            break; 
          case MENU_ABOUT: 
            whichActive=MENU_NEW_GAME; 
            break; 
        } 
        break; 
    } 
  } 
 
  public void action() 
  { 
    switch(menuState) 
    { 
      case MENU_STATE_MAIN: 
        if((allAction&LPKeyMask.MASK_KEY_UP_FLAG)!=0) 
        { 
          menuSelect(DIRECTION_UP); 
          allAction&=~LPKeyMask.MASK_KEY_UP_FLAG; 
        } 
        else if((allAction&LPKeyMask.MASK_KEY_DOWN_FLAG)!=0) 
        { 
          menuSelect(DIRECTION_DOWN); 
          allAction&=~LPKeyMask.MASK_KEY_DOWN_FLAG; 
        } 
        else if((allAction&LPKeyMask.MASK_KEY_OK_FLAG)!=0) 
        { 
          switch(whichActive) 
          { 
            case MENU_NEW_GAME: 
              gm.menuBeginNewGame(); 
              break; 
            case MENU_LOAD_GAME: 
              gm.menuLoadGame(); 
              break; 
            case MENU_VOL: 
              isVolOn=!isVolOn; 
              gm.menuAudio(); 
              break; 
            case MENU_EXIT: 
              gm.menuExitGame(); 
              break; 
            case MENU_ABOUT: 
 
              //about 
              menuState=MENU_STATE_ABOUT; 
              gm.menuAbout(); 
              break; 
          } 
          allAction&=~LPKeyMask.MASK_KEY_OK_FLAG; 
        } 
        break; 
    } 
  } 
 
  public void judgeKeyCode(int keyCode,int GameKeyCode) 
  { 
    switch(GameKeyCode) 
    { 
      case Canvas.FIRE: 
        if(((allAction&LPKeyMask.MASK_KEY_OK)==0) 
           &&((allAction&LPKeyMask.MASK_KEY_OK_FLAG)==0)) 
        { 
          allAction|=LPKeyMask.MASK_KEY_OK|LPKeyMask.MASK_KEY_OK_FLAG; 
        } 
        break; 
      case Canvas.UP: 
        if(((allAction&LPKeyMask.MASK_KEY_UP)==0) 
           &&((allAction&LPKeyMask.MASK_KEY_UP_FLAG)==0)) 
        { 
          allAction|=LPKeyMask.MASK_KEY_UP|LPKeyMask.MASK_KEY_UP_FLAG; 
        } 
        break; 
      case Canvas.DOWN: 
        if(((allAction&LPKeyMask.MASK_KEY_DOWN)==0) 
           &&((allAction&LPKeyMask.MASK_KEY_DOWN_FLAG)==0)) 
        { 
          allAction|=LPKeyMask.MASK_KEY_DOWN|LPKeyMask.MASK_KEY_DOWN_FLAG; 
        } 
        break; 
      case Canvas.LEFT: 
        if(((allAction&LPKeyMask.MASK_KEY_LEFT)==0) 
           &&((allAction&LPKeyMask.MASK_KEY_LEFT_FLAG)==0)) 
        { 
          allAction|=LPKeyMask.MASK_KEY_LEFT|LPKeyMask.MASK_KEY_LEFT_FLAG; 
        } 
        break; 
      case Canvas.RIGHT: 
        if(((allAction&LPKeyMask.MASK_KEY_RIGHT)==0) 
           &&((allAction&LPKeyMask.MASK_KEY_RIGHT_FLAG)==0)) 
        { 
          allAction|=LPKeyMask.MASK_KEY_RIGHT|LPKeyMask.MASK_KEY_RIGHT_FLAG; 
        } 
        break; 
      default: 
        switch(keyCode) 
        { 
          case Canvas.KEY_NUM2: //up 
            if(((allAction&LPKeyMask.MASK_KEY_UP)==0) 
               &&((allAction&LPKeyMask.MASK_KEY_UP_FLAG)==0)) 
            { 
              allAction|=LPKeyMask.MASK_KEY_UP|LPKeyMask.MASK_KEY_UP_FLAG; 
            } 
            break; 
          case Canvas.KEY_NUM8: //down 
            if(((allAction&LPKeyMask.MASK_KEY_DOWN)==0) 
               &&((allAction&LPKeyMask.MASK_KEY_DOWN_FLAG)==0)) 
            { 
              allAction|=LPKeyMask.MASK_KEY_DOWN|LPKeyMask.MASK_KEY_DOWN_FLAG; 
            } 
 
            break; 
          case Canvas.KEY_NUM4: //left 
            if(((allAction&LPKeyMask.MASK_KEY_LEFT)==0) 
               &&((allAction&LPKeyMask.MASK_KEY_LEFT_FLAG)==0)) 
            { 
              allAction|=LPKeyMask.MASK_KEY_LEFT|LPKeyMask.MASK_KEY_LEFT_FLAG; 
            } 
 
            break; 
          case Canvas.KEY_NUM6: //right 
            if(((allAction&LPKeyMask.MASK_KEY_RIGHT)==0) 
               &&((allAction&LPKeyMask.MASK_KEY_RIGHT_FLAG)==0)) 
            { 
              allAction|=LPKeyMask.MASK_KEY_RIGHT|LPKeyMask.MASK_KEY_RIGHT_FLAG; 
            } 
 
            break; 
          case Canvas.KEY_NUM5: //ok 
            if(((allAction&LPKeyMask.MASK_KEY_OK)==0) 
               &&((allAction&LPKeyMask.MASK_KEY_OK_FLAG)==0)) 
            { 
              allAction|=LPKeyMask.MASK_KEY_OK|LPKeyMask.MASK_KEY_OK_FLAG; 
            } 
            break; 
        } 
        break; 
    } 
  } 
 
  public void freeKey(int keyCode,int gameKeyCode) 
  { 
    switch(gameKeyCode) 
    { 
      case Canvas.FIRE: 
        allAction&=~LPKeyMask.MASK_KEY_OK; 
        break; 
      case Canvas.UP: 
        allAction&=~LPKeyMask.MASK_KEY_UP; 
        break; 
      case Canvas.DOWN: 
        allAction&=~LPKeyMask.MASK_KEY_DOWN; 
        break; 
      case Canvas.LEFT: 
        allAction&=~LPKeyMask.MASK_KEY_LEFT; 
        break; 
      case Canvas.RIGHT: 
        allAction&=~LPKeyMask.MASK_KEY_RIGHT; 
        break; 
      default: 
        switch(keyCode) 
        { 
          case Canvas.KEY_NUM2: //up 
            allAction&=~LPKeyMask.MASK_KEY_UP; 
            break; 
          case Canvas.KEY_NUM8: //down 
            allAction&=~LPKeyMask.MASK_KEY_DOWN; 
            break; 
          case Canvas.KEY_NUM4: //left 
            allAction&=~LPKeyMask.MASK_KEY_LEFT; 
            break; 
          case Canvas.KEY_NUM6: //right 
            allAction&=~LPKeyMask.MASK_KEY_RIGHT; 
            break; 
          case Canvas.KEY_NUM5: 
            allAction&=~LPKeyMask.MASK_KEY_OK; 
            break; 
        } 
        break; 
    } 
  } 
 
  public void init() 
  { 
    menuState=MENU_STATE_MAIN; 
    whichActive=MENU_NEW_GAME; 
    allAction=0; 
  } 
 
// property 
 
//public 
  public int whichActive; 
  public int menuState; 
  public int allAction; 
  public boolean isVolOn=true; 
  private LPIGameManager gm; 
 
//final 
  public static final int MENU_NEW_GAME=0; 
  public static final int MENU_LOAD_GAME=1; 
  public static final int MENU_VOL=3; 
  public static final int MENU_EXIT=4; 
  public static final int MENU_ABOUT=5; 
 
  public static final int MENU_STATE_MAIN=0; 
  public static final int MENU_STATE_ABOUT=2; 
 
  private static final int DIRECTION_UP=0; 
  private static final int DIRECTION_DOWN=1; 
 
}