words.java

英语背单词联网版本

/*
 * words.java
 *
 * Created on 2003年11月18日, 上午9:13
 */

package handenglish;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.lang.Object;
import java.util.*;
/**
 *
 * @author  com
 * @version
 */
public class Words {
    public final int WHITE=0xffffff;
    public final int BLACK=00000000;
    public final int RED = 0xff0000;
    public final int YELLOW = 0xffff00;
    public final int LWIDTH=5;
    public final int TOTAL=10;
    public final int CHANGETIME=8;
    private Midlet midlet;
    private String nowWord,nowChinese,displayWord1,displayWord2,displayChinese2,displayChinese1,displayChinese;
    public int chineseNum;
    public char justLetter;
    public boolean isfinish;
    private Vector m_unitContent;
    private int m_wordId;
    private boolean isHelp,isHelpView;
    public int rightNum,wrongNum;
    private Random random;
    //public int m_unitType;
    
    public Words(Midlet midlet,int nowUnitType,int nowUnitId){
        m_wordId=0;
        m_unitContent=new Vector();
        random = new Random();
        midlet.getUnit(nowUnitType,nowUnitId,m_unitContent);
        this.midlet=midlet;
        
    }
    /*
     *读出单词
     */
     private void readWord(){
        int ran=0;
        nowWord=getWord();
        nowChinese=getChinese();
        int wordLength=nowWord.length();  
        char[] c1=nowWord.toCharArray();
        while(true){
            ran=Math.abs( random.nextInt())%wordLength;
            if(c1[ran]>=65&&c1[ran]<=128)
                break;
        }     
         justLetter=c1[ran];
        if(c1[ran]<97)
            justLetter=Character.toLowerCase(justLetter);
        if(wordLength!=1)
        {
            displayWord1=nowWord.substring(0,ran);
            displayWord1=displayWord1.concat("＿");
            String displayWord2=nowWord.substring(ran+1);
            displayWord1=displayWord1.concat(displayWord2);
        }
        else
            displayWord1="＿";
        displayChinese2=nowChinese;       
    }
    /**
     *画单词
     */
    public void draw(Graphics g){
        if(nowWord!=null){

            g.setClip(0,6,128,20);
            g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,Font.SIZE_SMALL));
            //g.setColor(RED);
            //g.drawString(displayWord1,10,6,g.TOP|g.LEFT);
            g.setColor(YELLOW);
            g.drawString(displayWord1,10,6,g.TOP|g.LEFT);
            
            g.setClip(0,110,128,18);
            if(chineseNum%CHANGETIME==0){
                if(chineseNum==0){
                    isHelp=false;
                    
                    isHelpView=true;
                }
                else if(displayChinese2.length()>TOTAL&&!isHelp){
                    isHelpView=false;
                    displayChinese1=displayChinese2.substring(0,TOTAL);
                    displayChinese=displayChinese1;
                    displayChinese2=displayChinese2.substring(TOTAL);
                }
                else if(displayChinese2.length()<=TOTAL&&!isHelp){
                    isHelpView=false;
                    displayChinese=displayChinese2;
                    isHelp=true;
                }
                else if(isHelp){
                    isHelp=false;
                    isHelpView=true;
                    displayChinese2=nowChinese;
                }
            }
            if(!isHelpView){
                g.setColor(YELLOW);
                g.drawString(displayChinese,5,110,g.TOP|g.LEFT);
            }
            else{
                g.setColor(RED);
                g.drawLine(10,115,14,119);
                g.drawLine(14,119,22,110);
                g.drawLine(40,111,46,119);
                g.drawLine(40,119,46,111);
                g.setColor(WHITE);
                g.drawString(""+rightNum,25,110,g.TOP|g.LEFT);
                g.drawString(""+wrongNum,50,110,g.TOP|g.LEFT);
                g.setColor(WHITE);
                g.drawString("0-帮助",85,110,g.TOP|g.LEFT);
            }
            chineseNum++;
        }
    }
    /**
     *获得下一个单词
     */
    public boolean changeWord(){
        if(m_wordId<getSize()){
            readWord();
            wrongNum=m_wordId-rightNum;
            m_wordId++;
            return true;
        }
        else{
            m_wordId=0;
            isfinish=true;
            return false;
        }
    }
    
    /**
     *判断是否答对
     */
    public boolean judge(char key){
        if(key==justLetter){
            return true;
        }
        else
            return false;
    }
    public int getSize(){
        return m_unitContent.size()/3;
    }
    private String getWord() {
        return (String)m_unitContent.elementAt(m_wordId*3);
    }
    private String getChinese(){
        return (String)m_unitContent.elementAt(m_wordId*3+2);
    }
}