highscorecanvas.java

用J2ME写的一种五子连线的手机游戏。ColorLinez是一款由玩家通过功能键移动各色小球

package game;

import javax.microedition.lcdui.*;

public class HighScoreCanvas extends Canvas
{
    Display display;
	//屏幕的宽度与高度
	private int scrWidth = 0;
	private int scrHeight = 0;

	private String name[] = new String[5];
	private int score[] = new int[5];
	
	public HighScoreCanvas(Display display)
    {
		//获得Display对象
	    this.display = display;
        //设屏全屏
    	this.setFullScreenMode(true);
        //得到屏幕的宽度与高度
    	scrWidth = this.getWidth();
    	scrHeight = this.getHeight();
    }
	
	protected void paint(Graphics g)
	{
		//清屏
		g.setColor(0xFFFFFF);
		g.fillRect(0, 0, scrWidth, scrHeight);
		g.setColor(0x000000);
		g.drawString("高分榜", scrWidth/2 - 30, 0, Graphics.TOP | Graphics.LEFT);
		printHighScore(g);
		g.drawString("按任意键返回", 50, 170, Graphics.TOP | Graphics.LEFT);
	}
	
	private void printHighScore(Graphics g)
	{

        int rsNum = HighScoreRecordStore.getHighScore(name, score);
        if ( rsNum > 0 )
		{
        	g.drawString("排名　　分数　　时间", 25, 20, Graphics.TOP | Graphics.LEFT);
			for ( int i = 0; i < rsNum; i++ )
			{
			    g.drawString(String.valueOf(i+1)+"　　"+String.valueOf(score[i])+"　　　　"+name[i], 30, 20 * (i+2), Graphics.TOP | Graphics.LEFT);
			}
		}
		else
		{
			g.drawString("没有记录", scrWidth/2 - 30, scrHeight/2 - 4, Graphics.TOP | Graphics.LEFT);
		}
	}
	
	protected void keyPressed(int keyCode)
	{
		display.setCurrent(new MainMenuCanvas(display));
	}
}