gif.java

贪吃蛇升级版本

package code;

import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.Graphics;

public class Gif 
{
	public String 	name  = "gif";
	public int 		life  =  1;
	public int 		pos_x =  0;
	public int 		pos_y =  0;
	public int 		w 	  = 10;
	public int 		h 	  = 10;
	public int 		form  =  1;

	private int		allTime;
	private int 	currForm;
	private long 	startTime;

	public boolean isShow=true;
	public int[] formTime={100};

	private Image[] img;
	
	public Gif( String _name, int _form, int _w, int _h )
	{
		w 	= _w;
		h 	= _h;
		setGif( _name, _form );
		startTime = System.currentTimeMillis();
		setPos();
	}

	public void setGif( String _name, int _form )
	{
		try
		{
			name 	= _name;
			form 	= _form;
			formTime= new int[form];
			img		= new Image[form];
			
			for( int i=0; i<form; i++ )
			{
				formTime[i]	=  100;
				allTime		+= formTime[i];
				img[i] 		=  Image.createImage("/pics/"+name+"_"+i+".png");
			}

//			Image temp 	= Image.createImage("/pics/"+name+".png");
//			form		= temp.getWidth()/w;
//			formTime	= new int[form];
//			img			= new Image[form];
//			Graphics gn;
//			for( int i=0; i<img.length; i++ )
//			{
//				formTime[i]	= 100;				
//				allTime		+=formTime[i];	
//				img[i] 		= Image.createImage(w, h);
//				gn 			= img[i].getGraphics();	
//				gn.drawImage(temp, -i*w, 0, gn.LEFT|gn.TOP);
//			}
//			gn	 = null;
//			temp = null;	
//			System.gc();

		}catch(Exception e){ e.printStackTrace(); }		
	}
	
	public void setPos()
	{
		pos_x = cGame.rand.nextInt(cGame.s_width-w)  + ( w>>1 );
		pos_y = cGame.rand.nextInt(cGame.s_height-h) + ( h>>1 );
		startTime = System.currentTimeMillis();
	}
	
	public void setFormTime(int[] _formTime)
	{
		formTime = _formTime;
		allTime  = 0;
		for( int i=0; i<formTime.length; i++ )
		{
			allTime	+=formTime[i];
		}
		startTime = System.currentTimeMillis();
	}
	
	public void paint(Graphics g)
	{
		if( isShow )
		{
			long now = System.currentTimeMillis();
			long time= (now-startTime)%allTime;
			for(int i=0; i<form; i++)
			{
				time -= formTime[i];
				if( time<=0 )
				{
					g.drawImage(img[i], pos_x, pos_y, g.HCENTER|g.VCENTER);
					break;
				}
			}
		}
	}
}