donut.c

int _z, x, y, o, N;
char b[1840];
p(n, c)
{
    for (; n--; x++)
        c == 10 ? y += 80, x =
                               o - 1
    : x >= 0 ? 80 > x ? c != '~' ? b[y + x] =
                                       c
                                 : 0
                      : 0
             : 0;
}
c(q, l, r, o, v) char *l,
    *r;
{
    for (; q >= 0;)
        q = ("A"
             "YLrZ^"
             "w^?EX"
             "novne"
             "bYV"
             "dO}LE"
             "{yWlw"
             "Jl_Ja|[ur]zovpu"
             ""
             "i]e|y"
             "ao_Be"
             "osmIg}r]]r]m|wkZU}{O}"
             "xys]]\
x|ya|y"
             "sm||{uel}|r{yIcsm||ya[{uE"
             "{qY\
w|gGor"
             "VrVWioriI}Qac{{BIY[sXjjsVW]aM"
             "T\
tXjjss"
             "sV_OUkRUlSiorVXp_qOM>E{BadB"[_z / 6] -
                             62 >>
                         _z++ % 6 &
                     1
                 ? r[q]
                 : l[q]) -
            o;
    return q;
}
E(a)
{
    for (
        o = x = a, y = 0, _z = 0; 1095 > _z;)
        a = " <.,`'/)(\n-"
            "\\_~"[c(12, "!%*/')#3"
                         ""
                         "+-6,8",
                     "\"(.$"
                     "01245"
                     " &79",
                     46) +
                   14],
        p(""
          "#$%&'()0:439 "[c(10, "&(*#,./1345", "')"
                                               "+%-$02\"! ",
                            44) +
                          12] -
              34,
          a);
}
main(k)
{
    float A = 0, B = 0, i, j, z[1840];
    puts(""
         "\x1b[2J");

    for (;;)
    {
        float e = sin(A), n = sin(B), g = cos(A), m = cos(B);
        for (k =
                 0;
             1840 > k; k++)
            y = -10 - k / 80, o = 41 + (k % 80 - 40) * 1.3 / y + n, N = A - 100.0 / y, b[k] = ".#"[o + N & 1], z[k] = 0;
        E(80 - (int)(9 * B) % 250);
        for (j = 0; 6.28 > j; j += 0.07)
            for (i = 0; 6.28 > i; i += 0.02)
            {
                float c = sin(i), d = cos(j), f = sin(j), h = d + 2, D = 15 / (c * h * e + f * g + 5), l = cos(i), t = c * h * g - f * e;
                x = 40 + 2 * D * (l * h * m - t * n), y = 12 + 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 (D > z
                            [o])
                    z[o] = D, b[o] = " ."
                                     ".,,-+"
                                     "+=#$@"[N > 0 ? N : 0];
            };

        printf(
            "%c[H", 27);
        for (k = 1; 18 * 100 + 41 > k; k++)
            putchar(k % 80 ? b[k] : 10);

        A += 0.053;

        B += 0.03;
        ;
        ;
        ;
        ;
    }
}