myui.java

这是一个赛车游戏的小代码

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;

public class MyUI {
	public Sprite m_CaptionSprite;
	public Sprite m_ButtonSprite;
	public Sprite m_LabelSprite;
	MyUI( int nWidth, int nHeight ){
		try {
			Image image = Image.createImage("/Caption.png");
			m_CaptionSprite = new Sprite( image, 80, 23 );
			int nX = nWidth / 2 - 40;
			int nY = nHeight / 2 - 11 - 30;
			m_CaptionSprite.setPosition( nX, nY );
			image = null;
			image = Image.createImage("/button.png");
			m_ButtonSprite = new Sprite( image, 48, 28 );
			nX = nWidth / 2 - 24;
			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();
		}				
	}
	public void Paint( Graphics g ){
		m_CaptionSprite.paint( g );
		m_ButtonSprite.paint( g );
		m_LabelSprite.paint( g );
	}
	//返回: false---没有按键，true---按下了开始键
	public boolean Input( int keyStates ){
		if( ( keyStates & GameCanvas.FIRE_PRESSED ) != 0 ){
        	return true;
		}
		return false;
	}

}