Donut.cpp/donut.cpp at main · JoshiMinh/Donut.cpp · GitHub

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#include <stdio.h>
#include <math.h>
#include <string.h>
#include <unistd.h>

int main() {
    float A = 0, B = 0, i, j, c, d, e, f, g, h, D, l, m, n, t;
    int k, x, y, o, N;
    float z[1760];
    char b[1760];

    printf("\x1b[2J");

    for (;;) {
        memset(b, 32, 1760);
        memset(z, 0, 7040);

        for (j = 0; j < 6.28; j += 0.07) {
            for (i = 0; i < 6.28; i += 0.02) {
                c = sin(i);
                d = cos(j);
                e = sin(A);
                f = sin(j);
                g = cos(A);
                h = d + 2;
                D = 1 / (c * h * e + f * g + 5);
                l = cos(i);
                m = cos(B);
                n = sin(B);
                t = c * h * g - f * e;
                x = 40 + 30 * D * (l * h * m - t * n);
                y = 12 + 15 * D * (l * h * n + t * m);
                o = x + 80 * y;
                N = 8 * ((f * e - c * d * g) * m - c * d * e - f * g - l * d * n);

                if (22 > y && y > 0 && x > 0 && 80 > x && D > z[o]) {
                    z[o] = D;
                    b[o] = ".,-~:;=!*#$@"[N > 0 ? N : 0];
                }
            }
        }

        printf("\x1b[H");
        for (k = 0; k < 1761; k++) {
            putchar(k % 80 ? b[k] : 10);
            A += 0.00004;
            B += 0.00002;
        }

        usleep(30000);
    }

    return 0;
}