web2.0package rorate;

import javax.microedition.lcdui.Graphics;

/
* 图片任意角度翻转算法
* 同时实现了Nokia特有API
* author. BB
* Sprite.java
*
*
*/

public class Sprite {

/** SIN TABLE **/

public final static int SIN_TABLE[] =

{

0, 4, 8, 13, 17, 22, 26, 31, 35, 39,

44, 48, 53, 57, 61, 65, 70, 74, 78, 83,

87, 91, 95, 99, 103, 107, 111, 115, 119, 123,

127, 131, 135, 138, 142, 146, 149, 153, 156, 160,

163, 167, 170, 173, 177, 180, 183, 186, 189, 192,

195, 198, 200, 203, 206, 208, 211, 213, 216, 218,

220, 223, 225, 227, 229, 231, 232, 234, 236, 238,

239, 241, 242, 243, 245, 246, 247, 248, 249, 250,

251, 251, 252, 253, 253, 254, 254, 254, 254, 254,

255, 254, 254, 254, 254, 254, 253, 253, 252, 251,

251, 250, 249, 248, 247, 246, 245, 243, 242, 241,

239, 238, 236, 234, 232, 231, 229, 227, 225, 223,

220, 218, 216, 213, 211, 208, 206, 203, 200, 198,

195, 192, 189, 186, 183, 180, 177, 173, 170, 167,

163, 160, 156, 153, 149, 146, 142, 138, 135, 131,

127, 123, 119, 115, 111, 107, 103, 99, 95, 91,

87, 83, 78, 74, 70, 65, 61, 57, 53, 48,

44, 39, 35, 31, 26, 22, 17, 13, 8, 4,

0, -4, -8, -13, -17, -22, -26, -31, -35, -39,

-44, -48, -53, -57, -61, -65, -70, -74, -78, -83,

-87, -91, -95, -99, -103, -107, -111, -115, -119, -123,

-127, -131, -135, -138, -142, -146, -149, -153, -156, -160,

-163, -167, -170, -173, -177, -180, -183, -186, -189, -192,

-195, -198, -200, -203, -206, -208, -211, -213, -216, -218,

-220, -223, -225, -227, -229, -231, -232, -234, -236, -238,

-239, -241, -242, -243, -245, -246, -247, -248, -249, -250,

-251, -251, -252, -253, -253, -254, -254, -254, -254, -254,

-255, -254, -254, -254, -254, -254, -253, -253, -252, -251,

-251, -250, -249, -248, -247, -246, -245, -243, -242, -241,

-239, -238, -236, -234, -232, -231, -229, -227, -225, -223,

-220, -218, -216, -213, -211, -208, -206, -203, -200, -198,

-195, -192, -189, -186, -183, -180, -177, -173, -170, -167,

-163, -160, -156, -153, -149, -146, -142, -138, -135, -131,

-127, -123, -119, -115, -111, -107, -103, -99, -95, -91,

-87, -83, -78, -74, -70, -65, -61, -57, -53, -48,

-44, -39, -35, -31, -26, -22, -17, -13, -8, -4

};

/** 透明 **/
public static int TRANSPARENT = 0;

/** 不透明 **/
public static int OPAQUE = 15;

/**
* 像素值
* 包含动画帧，主下标标识动画帧数，副下标的值代表像素值
*/
public short pixels[][];

/*
* 精灵的宽度
* 该版本默认精灵各个帧的宽度一样大小
*/
public short width;

/*
* 精灵的高度
* 该版本默认精灵各个帧的高度一样大小
*/
public short height;

/*
* 动画帧数
*/
public byte numOfFrame;

/*
* 当前动画帧数
*/
public int curFrame;

/*
* 构造函数
* 确保传入的各个值为合理的值
* 使用的话请自己做判断
* @param _pixels 动画的像素值
* @param _width 宽度
* @param _height 高度
*/
public Sprite(short[][] _pixels, short _width, short _height){

pixels = _pixels;

width = _width;

height = _height;

numOfFrame = (byte)_pixels.length;

curFrame = 0;

}

/*

* 构造函数

*/

public Sprite(){

}

/*
* 投影
* @param cData
* @param l
* @param i1
* @param j1
* @param k1
* @return
*/
private final short project(short cData[], int l, int i1, int j1, int k1) {

int j3 = (j1 & 0xffff) >> 8;

int k3 = (k1 & 0xffff) >> 8;

int l3 = (256 - j3) * (256 - k3);

int i4 = j3 * (256 - k3);

int j4 = (256 - j3) * k3;

int k4 = j3 * k3;

int l2 = j1 >> 16;

int i3 = k1 >> 16;

l2 %= l;

i3 %= i1;

i3 *= l;

short word0 = cData[l2 + i3];

short word2 = cData[(l2 + (i3 + l)) % (cData.length - 1)];

l2 = ++l2 % l;

short word1 = cData[l2 + i3];

short word3 = cData[(l2 + (i3 + l)) % (cData.length - 1)];

int l1 = word0 >> 12 & 0xf;

int i2 = word1 >> 12 & 0xf;

int j2 = word2 >> 12 & 0xf;

int k2 = word3 >> 12 & 0xf;

int k5 = l1 * l3 + i2 * i4 + j2 * j4 + k2 * k4 >> 16;

l1 = word0 >> 8 & 0xf;

i2 = word1 >> 8 & 0xf;

j2 = word2 >> 8 & 0xf;

k2 = word3 >> 8 & 0xf;

in