#Include <stdio.h> #include <stdlib.h> #define for_x for (int x = 0; x

Question

#Include <stdio.h> #include <stdlib.h> #define for_x for (int x = 0; x

< w; x++)
#define for_y for (int y = 0; y < h; y++)
#define for_xy for_x for_y
void show(void *u,const int w,const int h)
{
int (*univ)[w] = u;
printf("\033[H");
for_y {
for_x printf(univ[y][x] ? "\033[07m \033[m" : " ");
printf("\033[E");
}
fflush(stdout);
}

void evolve(void *u, int w, int h)
{
unsigned (*univ)[w] = u;
unsigned new[h][w];

for_y for_x {
int n = 0;
for (int y1 = y - 1; y1 <= y + 1; y1++)
for (int x1 = x - 1; x1 <= x + 1; x1++)
if (univ[(y1 + h) % h][(x1 + w) % w])
n++;

if (univ[y][x]) n--;
new[y][x] = (n == 3 || (n == 2 && univ[y][x]));
}
for_y for_x univ[y][x] = new[y][x];
}

void game(int w, int h)
{
unsigned univ[h][w];
for_xy univ[y][x] = rand() < RAND_MAX / 10 ? 1 : 0;
while (1) {
show(univ, w, h);
evolve(univ, w, h);
nanosleep(200000);
}
}
int main(int c, char **v)
{
int w = 80, h = 25;

game(w, h);