Patch patch = world.getPatch(i);
int liveNeighbors =
((Double) patch.variables[LIVE_NEIGHBORS_VAR]).intValue();
if (liveNeighbors == 3) {
patch.variables[LIVING_VAR] = Boolean.TRUE;
patch.pcolor(fgcolor);
} else if (liveNeighbors != 2) {
patch.variables[LIVING_VAR] = Boolean.FALSE;
patch.pcolor(bgcolor);
}
}