范例7-android 版Sprite代码

? 因为android 没有提供sprite，对于使用j2me的开发者有些不习惯，我接下去的实例也会用的sprite,所以我就写个了android版的sprite,只提供了一些我平时常用到的方法，等以后有用到其他的，就增加其他的，大家也可以自己增加。算法可能不是很优化，大家可以自行修改。下面给出源码:

AndroidSprite.java

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package com.wjh.my_sprite;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Paint;import android.util.Log;public class AndroidSprite {			private int length = 0;// 帧序列长度	private int currentPosition = 0;//当前帧序列下标	private int[][] framesXY = null;//各个帧序列在图片的坐标	private int frameWidth = 0;//帧的宽度	private int frameHeight = 0;//帧的高度	private Bitmap bigFrames = null;//大的图片	private int cols = 0;	private int rows = 0;	private int PositionX = 0;//精灵的X坐标	private int PositionY = 0;//精灵的Y坐标		private int[] frameSequence = null;//加入的帧序列	private int sequencePosition = 0;//加入的帧序列的显示下标	public AndroidSprite(Bitmap image,int frameWidth,int frameHeight)	{		//初始化		this.bigFrames = image;		this.frameWidth = frameWidth;		this.frameHeight = frameHeight;				framesXY = initSprite(image, frameWidth, frameHeight);		this.length = framesXY.length;	}	//初始化精灵	private int[][] initSprite(Bitmap bitmap,int frameWidth,int frameHeight)	{		int imageWidth = bitmap.getWidth();		int imageHeight = bitmap.getHeight();		this.cols = Math.round(imageWidth/frameWidth);//列数		this.rows = Math.round(imageHeight/frameHeight);//行数				int[][] tempXYs = new int[cols*rows][2];		for(int i=0,k=0;i<rows;i++)		{			for(int j=0;j<cols;j++,k++)			{				tempXYs[k][0] = j*frameWidth;				tempXYs[k][1] = i*frameHeight;			}		}						return tempXYs;	}	//获得当前帧的下标	public int getFrame()	{		return this.currentPosition;	}	//获得帧序列的长度	public int getFrameSequenLength()	{		return framesXY.length;	}	//获得当前帧序列的下一个帧	public void nextFrame()	{		//如果自定义帧序列为空，则使用默认的		if(frameSequence==null)		{			currentPosition++;			if(currentPosition>length-1)			{				currentPosition = 0;			}		}else		{			sequencePosition++;			if(sequencePosition>frameSequence.length-1)			{				sequencePosition = 0;			}			currentPosition = frameSequence[sequencePosition];		}	}	//获得当前帧序列的上一个帧	public void prevFrame()	{		if(this.frameSequence==null)		{			currentPosition--;			if(currentPosition<0)			{				currentPosition = length-1;			}		}else		{			sequencePosition--;			if(sequencePosition<0)			{				sequencePosition = frameSequence.length-1;			}			currentPosition = frameSequence[sequencePosition];		}			}	//设置当前帧	public void setFrame(int sequenceIndex)	{		if(sequenceIndex>=0&&sequenceIndex<length)		{		this.currentPosition = sequenceIndex;		}	}	//设置位置	public void setPosition(int positionX,int positionY)	{		this.PositionX = positionX;		this.PositionY = positionY;	}		//设置帧序列	public void setFrameSequence(int[] sequence)	{				if(this.frameSequence!=null)		{			currentPosition = sequence[0];			sequencePosition = 0;		}else		{			this.frameSequence = sequence;		}	}	//移动	public void move(int x,int y)	{		PositionX += x;		PositionY += y;	}	public void paint(Canvas canvas,Paint paint)	{		Log.d("ddd", ""+this.PositionX);		Log.d("ddd", ""+this.PositionY);		Bitmap bitmap = Bitmap.createBitmap(this.bigFrames, 				this.framesXY[currentPosition][0],				this.framesXY[currentPosition][1],this.frameWidth,this.frameHeight);		canvas.drawBitmap(bitmap, PositionX, PositionY, paint);	}}

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?下面为我写的一个运用这个AndroidSprite的例子，下面为源代码和实例图：

图片插入的时候没显示出来。。所以就不弄了。

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?源码:MySprite.rar