Эффект матрицы (console program c++)

#include <iostream>
#include <windows.h>

int Modulus(int iN, int iMod) {
int iQ = (iN/iMod);
return iN - (iQ*iMod);
}

char GetChar(int iGenerator, char cBase, int iRange) {
return (cBase + Modulus(iGenerator, iRange));
}

int main() {
// Color code
HANDLE hConsole;
hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hConsole, 2);

char caRow[80];
int j = 7;
int k = 2;
int l = 5;
int m = 1;
while (true) {
int i = 0;
// Output a random row of characters
while (i < 80) {
if (caRow[i] != ' ') {
caRow[i] = GetChar(j + i*i, 33, 30);
if (((i*i + k) % 71) == 0) {
SetConsoleTextAttribute(hConsole, 7);
} else {
SetConsoleTextAttribute(hConsole, 2);
}
}
std::cout << caRow[i];
++i;
SetConsoleTextAttribute(hConsole, 2);
}
j = (j + 31);
k = (k + 17);
l = (l + 47);
m = (m + 67);
caRow[Modulus(j, 80)] = '-';
caRow[Modulus(k, 80)] = ' ';
caRow[Modulus(l, 80)] = '-';
caRow[Modulus(m, 80)] = ' ';
// Delay
Sleep(10);
}
return 0;
}

Код

#include <iostream>

#include <windows.h>



int Modulus(int iN, int iMod) {

   int iQ = (iN/iMod);

   return iN - (iQ*iMod);

}



char GetChar(int iGenerator, char cBase, int iRange) {

   return (cBase + Modulus(iGenerator, iRange));

}



int main() {

   // Color code

   HANDLE  hConsole;

   hConsole = GetStdHandle(STD_OUTPUT_HANDLE);

   SetConsoleTextAttribute(hConsole, 2);



   char caRow[80];

   int j = 7;

   int k = 2;

   int l = 5;

   int m = 1;

   while (true) {

       int i = 0;

       // Output a random row of characters

       while (i < 80) {

           if (caRow[i] != ' ') {

               caRow[i] = GetChar(j + i*i, 33, 30);

               if (((i*i + k) % 71) == 0) {

                   SetConsoleTextAttribute(hConsole,  7);

               } else {

                   SetConsoleTextAttribute(hConsole,  2);

               }

           }

           std::cout << caRow[i];

           ++i;

           SetConsoleTextAttribute(hConsole,  2);

       }

       j = (j + 31);

       k = (k + 17);

       l = (l + 47);

       m = (m + 67);

       caRow[Modulus(j, 80)] = '-';

       caRow[Modulus(k, 80)] = ' ';

       caRow[Modulus(l, 80)] = '-';

       caRow[Modulus(m, 80)] = ' ';

       // Delay

       Sleep(10);

   }

   return 0;

}