helpcanvas.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 HelpCanvas extends Canvas
{
	//声明Display对象
    Display display;
	//屏幕的宽度与高度
	private int scrWidth = 0;
	private int scrHeight = 0;
	
	private Image image = null;
	//private String content = "ColorLinez是一款由玩家通过功能键移动各色小球，把五个及五个以上相同颜色小球移成一横排、一竖列，小球从而消失的游戏,玩家每移动一个小球，就会随机新出现三个随机颜色的小球，小球消失的数量作为玩家得到的分数!";

	public HelpCanvas(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();
    	
    	try
    	{
    		image = Image.createImage("/res/help.png");
    	}
    	catch(Exception e)
    	{
    		System.out.println(e);
    	}
	}
	
	protected void paint(Graphics g)
	{
		//清屏
		g.setColor(0xFFFFFF);
		g.fillRect(0, 0, scrWidth, scrHeight);
		g.setColor(0x000000);
		
		g.drawImage(image, 0, 0, Graphics.TOP | Graphics.LEFT);
	}
	
	protected void keyPressed(int keyCode)
	{
		image = null;
		display.setCurrent(new MainMenuCanvas(display));
	}
}