程序员福利

偶然发现几个有意思的程序:用C语言显示出花的图形,其中玫瑰是动态生成的,
效果如下:

程序是利用EasyX图形库实现的,只要配置ExasyX库就可以运行
源码如下:

/*花*/#include <graphics.h>#include <conio.h>#include <math.h>#define PI 3.14159265// 画 花朵void flower(int x, int y, COLORREF c){    int x1, y1, x2, y2;    int d = 15;    double e;    setcolor(c);    for (double a = 0; a < 2 * PI; a += PI / 360)    {        e = d * (1 + sin(a * 5));        x1 = int(x + e * cos(a));        y1 = int(y + e * sin(a));        x2 = int(x + e * cos(a + PI / 5));        y2 = int(y + e * sin(a + PI / 5));        line(x1, y1, x2, y2);    }}// 画 蝴蝶结void tie(int x, int y, COLORREF c){    int x1, y1, x2, y2;    int d = 80;    double e;    setcolor(c);    for (double a = 0; a < 2 * PI; a += PI / 360)    {        e = d * (1 + sin(a * 4));        x1 = int(x + e * cos(a));        y1 = int(y + e * sin(a) / 2);        x2 = int(x + e * cos(a + PI / 9));        y2 = int(y + e * sin(a + PI / 9) / 4.5);        line(x1, y1, x2, y2);    }}// 主函数void main(){    initgraph(640, 480);    // 画枝干    setcolor(GREEN);    line(189, 372, 180, 400);    line(310, 160, 325, 68);    line(310, 160, 187, 374);    line(150, 140, 189, 374);    line(430, 176, 190, 374);    line(370, 110, 187, 374);    line(250, 72, 189, 372);    line(253, 192, 190, 374);    line(189, 372, 187, 400);    line(189, 372, 182, 400);    line(189, 372, 200, 120);    // 画花朵    flower(320, 160, RED);    flower(200, 120, YELLOW);    flower(150, 140, LIGHTRED);    flower(430, 176, RGB(255, 127, 0));    flower(370, 110, RGB(239, 179, 52));    flower(250, 72, RGB(235, 95, 186));    flower(325, 68, RGB(228, 119, 98));    flower(253, 190, RGB(247, 169, 117));    // 画蝴蝶结    tie(195, 354, LIGHTMAGENTA);    // 按任意键退出    getch();    closegraph();}

#include <graphics.h>#include <conio.h>#include <math.h>// 定义全局变量int rosesize = 500;int h = -250;// 定义结构体struct DOT{    double x;    double y;    double z;    double r;   // 红色    double g;   // 绿色                // b(蓝色) 通过 r 计算};// 计算点bool calc(double a, double b, double c, DOT &d){    double j, n, o, w, z;    if (c > 60)             // 花柄    {        d.x = sin(a * 7) * (13 + 5 / (0.2 + pow(b * 4, 4))) - sin(b) * 50;        d.y = b * rosesize + 50;        d.z = 625 + cos(a * 7) * (13 + 5 / (0.2 + pow(b * 4, 4))) + b * 400;        d.r = a * 1 - b / 2;        d.g = a;        return true;    }    double A = a * 2 - 1;    double B = b * 2 - 1;    if (A * A + B * B < 1)    {        if (c > 37)         // 叶        {            j = (int(c) & 1);            n = j ? 6 : 4;            o = 0.5 / (a + 0.01) + cos(b * 125) * 3 - a * 300;            w = b * h;            d.x = o * cos(n) + w * sin(n) + j * 610 - 390;            d.y = o * sin(n) - w * cos(n) + 550 - j * 350;            d.z = 1180 + cos(B + A) * 99 - j * 300;            d.r = 0.4 - a * 0.1 + pow(1 - B * B, -h * 6) * 0.15 - a * b * 0.4 + cos(a + b) / 5 + pow(cos((o * (a + 1) + (B > 0 ? w : -w)) / 25), 30) * 0.1 * (1 - B * B);            d.g = o / 1000 + 0.7 - o * w * 0.000003;            return true;        }        if (c > 32)         // 花萼        {            c = c * 1.16 - 0.15;            o = a * 45 - 20;            w = b * b * h;            z = o * sin(c) + w * cos(c) + 620;            d.x = o * cos(c) - w * sin(c);            d.y = 28 + cos(B * 0.5) * 99 - b * b * b * 60 - z / 2 - h;            d.z = z;            d.r = (b * b * 0.3 + pow((1 - (A * A)), 7) * 0.15 + 0.3) * b;            d.g = b * 0.7;            return true;        }        // 花        o = A * (2 - b) * (80 - c * 2);        w = 99 - cos(A) * 120 - cos(b) * (-h - c * 4.9) + cos(pow(1 - b, 7)) * 50 + c * 2;        z = o * sin(c) + w * cos(c) + 700;        d.x = o * cos(c) - w * sin(c);        d.y = B * 99 - cos(pow(b, 7)) * 50 - c / 3 - z / 1.35 + 450;        d.z = z;        d.r = (1 - b / 1.2) * 0.9 + a * 0.1;        d.g = pow((1 - b), 20) / 4 + 0.05;        return true;    }    return false;}// 主函数void main(){    // 定义变量    short   *zBuffer;    int     x, y, z, zBufferIndex;    DOT     dot;    // 初始化    initgraph(640, 480);                // 创建绘图窗口    setbkcolor(WHITE);                  // 设置背景色为白色    cleardevice();                      // 清屏                                        // 初始化 z-buffer    zBuffer = new short[rosesize * rosesize];    memset(zBuffer, 0, sizeof(short) * rosesize * rosesize);    for (int j = 0; j < 2000 && !_kbhit(); j++) // 按任意键退出    {        for (int i = 0; i < 10000; i++)         // 减少是否有按键的判断            if (calc(double(rand()) / RAND_MAX, double(rand()) / RAND_MAX, rand() % 46 / 0.74, dot))            {                z = int(dot.z + 0.5);                x = int(dot.x * rosesize / z - h + 0.5);                y = int(dot.y * rosesize / z - h + 0.5);                if (y >= rosesize) continue;                zBufferIndex = y * rosesize + x;                if (!zBuffer[zBufferIndex] || zBuffer[zBufferIndex] > z)                {                    zBuffer[zBufferIndex] = z;                    // 画点                    int r = ~int((dot.r * h));             if (r < 0) r = 0;   if (r > 255) r = 255;                    int g = ~int((dot.g * h));             if (g < 0) g = 0;   if (g > 255) g = 255;                    int b = ~int((dot.r * dot.r * -80));   if (b < 0) b = 0;   if (b > 255) b = 255;                    putpixel(x + 50, y - 20, RGB(r, g, b));                }            }        Sleep(1);    }    // 退出    delete[]zBuffer;    _getch();    closegraph();}

收藏好没准下次有用哈哈