Code that runs the Game of Life on itself

Perl, w*h=233*1=233 (per cell)

Cells work in any grid size (actually even with irregular row length). Out of boundary cells are considered dead.

Dead Cell

my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});

Living Cell

my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});

Glider

my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});

generates:

my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=1}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});
my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});my$y;INIT{$y=__LINE__;$h{++$x{$y}}{$y}=0}eval($c=q{$n=0;$o++;for$i(-1..1){$n+=$i|$_&&$h{$o+$i}{$y+$_}for(-1..1)}print"my\$y;INIT{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=",$n==2?$h{$o}{$y}:$n==3||0,"}eval(\$c=q{$c});",!($o%=$x{$y})&&"\n"});

Explanation (not current)

# Perl has several special blocks that are executed at certain stages.
# BEGIN blocks are executed at compilation stage
BEGIN
{
  # current row index and row count in execution stage
  $y=__LINE__;
  # $x{$y} is the cell index in current row and cell count in execution stage
  # $h{..}{..} set cell to dead || alive
  $h{++$x{$y}}{$y}=1
}

# dead || alive
$v=1;
# row index
$p=__LINE__;
# write cell code to $c
$c=q{
  # reset neighbour count
  $n=0;
  # cell index
  $o++;
  # count living neighbours
  for$i(-1..1){$n+=$i|$_?$h{$o+$i}{$p+$_}:0for(-1..1)}
  # reset cell index to 0 when end of row is reached
  $o%=$x{$p};
  # dead || alive for next generation of this cell
  $v=$n==3||$n==2&&$v||0;
  # print the new cell
  print"BEGIN{\$y=__LINE__;\$h{++\$x{\$y}}{\$y}=$v}\$v=$v;\$p=__LINE__;\$c=q{$c};eval\$c;",$o?"":"\n"
};
# execute cell code
eval$c;

Perl, w*h=140*2=280 (per cell)

Multi-line cell is not efficient but can eliminate __LINE__.

Dead Cell

BEGIN{++$v}eval($c=q<;;;;;;++$y;map{$i{$y}+=$h{$y+$_}}(-$a-1..-$a+1,-1,1,$a-1..$a+1);print'BEGIN{++$v}eval($c=q<',$c,'>);',!($y%$a)&&"\n">);
BEGIN{$a||=$v,$h{++$x}=0}eval($c=q<$n=$i{++$z};print'BEGIN{$a||=$v,$h{++$x}=',$n==2?$h{$z}:$n==3||0,'}eval($c=q<',$c,'>);',!($z-$y)&&"\n">);

Living Cell

BEGIN{++$v}eval($c=q<;;;;;;++$y;map{$i{$y}+=$h{$y+$_}}(-$a-1..-$a+1,-1,1,$a-1..$a+1);print'BEGIN{++$v}eval($c=q<',$c,'>);',!($y%$a)&&"\n">);
BEGIN{$a||=$v,$h{++$x}=1}eval($c=q<$n=$i{++$z};print'BEGIN{$a||=$v,$h{++$x}=',$n==2?$h{$z}:$n==3||0,'}eval($c=q<',$c,'>);',!($z-$y)&&"\n">);

JavaScript ES6 (239 x 1 characters per cell)

Dead cell:

f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');

Alive cell:

f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');

Only difference being S[j]=0 for dead and S[j]=1 for alive cells.

Grid size is controlled with variables W (width) and H (height). Cells outside grid are dead.

Commented version

f=r=>{
    S=S||[],    // cell states
    j=S.length, // current index
    S[j]=1,     // state of this cell
    W=5,        // width of grid
    H=6;        // height of grid
    if (j+2 > W*H)  // if last cell
        /* Loop all cells and gather code for output */
        for (i in S)
            /* Function source with state replaced */
            r +=("f="+f+";f('');").replace(/0|1/, ~~[S[i],1] // lookup table
                [~~S[i-W] + ~~S[+i+W] + // +i to convert from int to string
                ~~(i % W ? S[--i] + S[i-W] + S[W+i++] : 0) +
                ~~(i % W < W-1 ? S[++i] + S[i-W] + S[W+i--] : 0)-2]),
            r = ++i % W ? r : (console.log(r), "")
};
f(''); // call current cell function to set state of the cell

Glider (5 x 6 grid)

f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');

Outputs next generation:

f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=1,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');
f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');f=e=>{S=S||[],j=S.length,S[j]=0,W=5,H=6;if(j+2>W*H)for(i in S)e+=("f="+f+";f('');").replace(/0|1/,~~[S[i],1][~~S[i-W]+~~S[+i+W]+~~(i%W?S[--i]+S[i-W]+S[W+i++]:0)+~~(i%W<W-1?S[++i]+S[i-W]+S[W+i--]:0)-2]),e=++i%W?e:(console.log(e),"")};f('');

Python, 67x33 = 2,211

Note, that this is my pretty version, where I added a line of "#" to every other line in a life cell, and " " to every other line in a dead cell. Also, the cells are separated by "#" lines. This way, you can place an initial configuration in a text file, e.g. GOL.py, and look at it with a tiny font to see what is going on each step. To get to the next step, execute python GOL.py > GOL1.py;mv GOL1.py GOL.py and have a look again.

My solution works on a grid of arbitrary size and assumes periodic boundary conditions. I haven't tested varying line widths, but there definitely is capability for that.

I should also mention, that the success of this solution depends on __del__ being called when a is destroyed at the end of the program. The Python documentation states

It is not guaranteed that __del__() methods are called for objects that still exist when the interpreter exits.

So, I just hope, that this not only works with my interpreter.

Live cell:

c=['import sys;o=sys.stdout.write;r=range;l=len;w=66',#############
###################################################################
'class B(list):',' def __getitem__(s,k):',#########################
###################################################################
'  return list.__getitem__(s,k%l(s))','class A(B):',###############
###################################################################
' def e(s,k,m):','  g=(s[k-1][m]+s[k+1][m]+s[k][m-1]+s[k][m+1]',###
###################################################################
'+s[k-1][m-1]+s[k-1][m+1]+s[k+1][m-1]+s[k+1][m+1])',###############
###################################################################
'  if s[k][m]==0:return 1 if g==3 else 0',#########################
###################################################################
'  return 1 if g==2 or g==3 else 0',' def u(s,i,y,b):',############
###################################################################
'  for j in r(l(s[i])):o(y+b[s.e(i,j)]*(w-l(y))+"#")',#############
###################################################################
'  print;print"#".join([b[s.e(i,j)]*w for j in r(l(s[i]))])+"#"',##
###################################################################
' def __del__(s):','  for i in r(l(s)):','   y="";b=[" ","#"]',####
###################################################################
'   for q in ["c=["]+[repr(x)+","for x in c]+[',###################
###################################################################
'"];import os;exec(os.linesep.join(c))"]:',########################
###################################################################
'    if l(y+q)>w:s.u(i,y,b);y=""','    y+=q','   s.u(i,y,b)',######
###################################################################
'   for j in r(l(s[i])):o("a[-1].append(%i);"%s.e(i,j)+" "*51)',###
###################################################################
'   print;print "#"*l(s[i])*(w+1)','if "a" not in locals():a=A()',#
###################################################################
'a.append(B())',];import os;exec(os.linesep.join(c))###############
###################################################################
a[-1].append(1);                                                   
###################################################################

Dead cell:

c=['import sys;o=sys.stdout.write;r=range;l=len;w=66',            #
                                                                  #
'class B(list):',' def __getitem__(s,k):',                        #
                                                                  #
'  return list.__getitem__(s,k%l(s))','class A(B):',              #
                                                                  #
' def e(s,k,m):','  g=(s[k-1][m]+s[k+1][m]+s[k][m-1]+s[k][m+1]',  #
                                                                  #
'+s[k-1][m-1]+s[k-1][m+1]+s[k+1][m-1]+s[k+1][m+1])',              #
                                                                  #
'  if s[k][m]==0:return 1 if g==3 else 0',                        #
                                                                  #
'  return 1 if g==2 or g==3 else 0',' def u(s,i,y,b):',           #
                                                                  #
'  for j in r(l(s[i])):o(y+b[s.e(i,j)]*(w-l(y))+"#")',            #
                                                                  #
'  print;print"#".join([b[s.e(i,j)]*w for j in r(l(s[i]))])+"#"', #
                                                                  #
' def __del__(s):','  for i in r(l(s)):','   y="";b=[" ","#"]',   #
                                                                  #
'   for q in ["c=["]+[repr(x)+","for x in c]+[',                  #
                                                                  #
'"];import os;exec(os.linesep.join(c))"]:',                       #
                                                                  #
'    if l(y+q)>w:s.u(i,y,b);y=""','    y+=q','   s.u(i,y,b)',     #
                                                                  #
'   for j in r(l(s[i])):o("a[-1].append(%i);"%s.e(i,j)+" "*51)',  #
                                                                  #
'   print;print "#"*l(s[i])*(w+1)','if "a" not in locals():a=A()',#
                                                                  #
'a.append(B())',];import os;exec(os.linesep.join(c))              #
                                                                  #
a[-1].append(0);                                                   
###################################################################

Python, 67x17 = 1,139 To get a golfed version, still with some way to recognise life cells from afar, the second print statement in lines 19 and 31 as well as every other line is deleted.

Live cell:

c=['import sys;o=sys.stdout.write;r=range;l=len;w=66',#############
'class B(list):',' def __getitem__(s,k):',#########################
'  return list.__getitem__(s,k%l(s))','class A(B):',###############
' def e(s,k,m):','  g=(s[k-1][m]+s[k+1][m]+s[k][m-1]+s[k][m+1]',###
'+s[k-1][m-1]+s[k-1][m+1]+s[k+1][m-1]+s[k+1][m+1])',###############
'  if s[k][m]==0: return 1 if g==3 else 0',########################
'  return 1 if g==2 or g==3 else 0',' def u(s,i,y,b):',############
'  for j in r(l(s[i])):o(y+b[s.e(i,j)]*(w-l(y))+"#")','  print',###
' def __del__(s):','  for i in r(l(s)):','   y="";b=[" ","#"]',####
'   for q in ["c=["]+[repr(x)+","for x in c]+[',###################
'"];import os;exec(os.linesep.join(c))"]:',########################
'    if l(y+q)>w:s.u(i,y,b);y=""','    y+=q','   s.u(i,y,b)',######
'   for j in r(l(s[i])):o("a[-1].append(%i);"%s.e(i,j)+" "*51)',###
'   print','if "a" not in locals():a=A()','a.append(B())',#########
];import os;exec(os.linesep.join(c))###############################
a[-1].append(1);                                                   

Dead cell:

c=['import sys;o=sys.stdout.write;r=range;l=len;w=66',            #
'class B(list):',' def __getitem__(s,k):',                        #
'  return list.__getitem__(s,k%l(s))','class A(B):',              #
' def e(s,k,m):','  g=(s[k-1][m]+s[k+1][m]+s[k][m-1]+s[k][m+1]',  #
'+s[k-1][m-1]+s[k-1][m+1]+s[k+1][m-1]+s[k+1][m+1])',              #
'  if s[k][m]==0: return 1 if g==3 else 0',                       #
'  return 1 if g==2 or g==3 else 0',' def u(s,i,y,b):',           #
'  for j in r(l(s[i])):o(y+b[s.e(i,j)]*(w-l(y))+"#")','  print',  #
' def __del__(s):','  for i in r(l(s)):','   y="";b=[" ","#"]',   #
'   for q in ["c=["]+[repr(x)+","for x in c]+[',                  #
'"];import os;exec(os.linesep.join(c))"]:',                       #
'    if l(y+q)>w:s.u(i,y,b);y=""','    y+=q','   s.u(i,y,b)',     #
'   for j in r(l(s[i])):o("a[-1].append(%i);"%s.e(i,j)+" "*51)',  #
'   print','if "a" not in locals():a=A()','a.append(B())',        #
];import os;exec(os.linesep.join(c))                              #
a[-1].append(0);                                                   

If there is demand, I will gladly explain the inner workings of my solution when I find the time.