七夕表白! C语言实现爱情红玫瑰

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#include <graphics.h>

#include <conio.h>

#include <math.h>

int rosesize = 500;

int h = -250;

struct DOT

{

 double x;

 double y;

 double z;

 double r;

 double g;

};

bool calc(double a, double b, double c, DOT &d)

{

 double j, n, o, w, z;

 if (c > 60)   

 {

  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)  

  {

   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)  

  {

   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;

  }

  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;

}

void main()

{

 short *zBuffer;

 int  x, y, z, zBufferIndex;

 DOT  dot;

 initgraph(640, 480);   

 setbkcolor(WHITE);    

 cleardevice();     

 zBuffer = new short[rosesize * rosesize];

 memset(zBuffer, 0, sizeof(short) * rosesize * rosesize);

 for (int j = 0; j < 2000 && !_kbhit(); j++)

 {

  for (int i = 0; i < 10000; i++)  

   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;

     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);

 }

 delete[]zBuffer;

 _getch();

 closegraph();

}

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