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<span style="font-size: 10pt"><a href="/plan9/">Plan 9 from Bell Labs</a>’s /usr/web/sources/contrib/aiju/cell.c</span></p>
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Copyright © 2009 Alcatel-Lucent.<br />
Distributed under the
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<a href="/plan9/download.html">Download the Plan 9 distribution.</a>
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#include <u.h>
#include <libc.h>
#include <draw.h>
enum {N = 100};
int A[N*N], B[N*N], *prev = A, *cur = B, mouse, tpx, tpy;
void
main()
{
initdraw(0, 0, 0);
tpx = screen->r.min.x;
tpy = screen->r.min.y;
memset(A, 0, sizeof A);
mouse = open("/dev/mouse", OREAD);
if(mouse == -1) sysfatal("open /dev/mouse: %r");
while(1) {
int i, *tmp;
memcpy(cur, prev, sizeof A);
for(i=0;i<N*N;i++) {
if(prev[i] > 3) {
cur[i] -= 3;
if(i >= N) cur[i-N]++;
if(i > 0) cur[i-1]++;
if(i <= N*N-N) cur[i+N]++;
if(i < N*N) cur[i+1]++;
}
}
for(i=0;i<N*N;i++) {
int x, y;
x = i % N;
y = i / N;
draw(screen, Rect(tpx+x,tpy+y,tpx+x+1,tpy+y+1), screen->display->black, 0, ZP);
}
tmp = cur;
cur = prev;
prev = tmp;
sleep(100);
}
}
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