myui.java

坦克大战 主要就是和黑白机上的相似

import java.io.IOException;

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.Sprite;
//定义游戏初始界面
public class MyUI {

	public Sprite m_ButtonSprite;
	public Sprite m_LabelSprite;
	public Image m_LogoImage;
	MyUI( int nWidth, int nHeight ){
		
		try {
			m_LogoImage = Image.createImage("/tanklogo.png");
			Image image = Image.createImage("/button.png");
			m_ButtonSprite = new Sprite( image, 48, 28 );
			int nX = nWidth / 2 - 24;
			int nY = nHeight / 2 - 14 + 10;
			m_ButtonSprite.setPosition( nX, nY );
			image = null;
			image = Image.createImage("/Label.png");
			m_LabelSprite = new Sprite( image, 37, 13 );
			nX = nWidth / 2 - 18;
			nY = nHeight / 2 - 6 + 10;
			m_LabelSprite.setPosition( nX, nY );
		} catch (IOException e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}				
	}
	//绘制屏幕的方法
	public void Paint( Graphics g ){
		g.drawImage(m_LogoImage, 0, 0, 0);
		g.setColor(0xffffff);
		g.drawString("坦克大战", m_LogoImage.getWidth(), 20, 0);
		g.drawString("一个演示", m_LogoImage.getWidth(), 40, 0);
		m_ButtonSprite.paint( g );
		m_LabelSprite.paint( g );
	}
	//返回: false表示没有按键，true表示按下了开始键
	public boolean Input( int keyStates ){
		if( ( keyStates & GameCanvas.FIRE_PRESSED ) != 0 ){
        	return true;
		}
		return false;
	}

}