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1、手机上实现任意角度翻转算法适用任何机型 录入者：admin |时间：2006-05-19 17:41:06 | 作者： | 来源： | 点击数：1055 上一篇 下一篇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
2、, 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,
3、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,
4、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,
5、 -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, -
6、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, -
7、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, -
8、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
9、 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; numOfF
10、rame = (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
11、- 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 = cDatal2 + i3; short word2 = cData(l2 + (i3 + l) % (cData.length - 1); l2 = +l2 % l; short word1 = cDatal2 + 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 =
