本類實(shí)現(xiàn)游戲菜單，游戲關(guān)于和游戲幫助的信息，能夠自適應(yīng)不同的手機(jī)

/*游戲中的一些常用的框架*/
import javax.microedition.lcdui.*;
import java.util.Vector;
class showContent
{
int w,h;//屏幕的長和寬
int cw;//字體的寬
int page,maXPage;//幫助信息中的頁碼/最大頁碼
int rn;//每行最大字?jǐn)?shù)
int maxR;//每屏最多顯示的行數(shù)
int cr;//字體行距
Vector about;
Vector help;
public showContent(int wid,int hei,int charw,int charR,String[] aboutText,String[] helpText)
{
  about=new Vector(0,1);
  help=new Vector(0,1);
  w=wid;h=hei;cw=charw;cr=charR;
  rn=w/cw;
  maxR=(h-20)/cr;
  page=0;
  for(int m=0;m<aboutText.length;m++)
  {
   int i=1+(aboutText[m].length()-1)/rn;
   for(int p=0;p<i;p++)
   {
    if(p<i-1)
    about.addElement((String)(aboutText[m].substring(p*rn,(p+1)*rn)));
    else
    about.addElement((String)(aboutText[m].substring(p*rn)));
   }
  }
  for(int m=0;m<helpText.length;m++)
  {
   int i=1+(helpText[m].length()-1)/rn;
   for(int p=0;p<i;p++)
   {
    if(p<i-1)
    help.addElement((String)(helpText[m].substring(p*rn,(p+1)*rn)));
    else
    help.addElement((String)(helpText[m].substring(p*rn)));
   }
  }
  maxPage=(help.size()-1)/maxR;
}
public void showAbout(Graphics g1,int x,int y)//顯示關(guān)于
{
  g1.setColor(0);
  g1.fillRect(0,0,w,h);
  g1.setColor(0xffffff);
  for(int i=0;i<about.size();i++)
  {
   g1.drawString((String)(about.elementAt(i)),x,y+i*cr,0);
  }
}
/*顯示暫停*/
  public void drawPause(Graphics g1)
  {
   g1.setColor(0);
   g1.fillRect(w/2-30,h/2-6,60,30);
   g1.setColor(0xffffff);
   g1.drawRect(w/2-30,h/2-6,60,30);
   g1.drawString("暫停中",w/2-20,h/2,0);
  }
public void showHelp(Graphics g1,int x,int y)//顯示幫助
{
  g1.setColor(0);
  g1.fillRect(0,0,w,h);