in reply to 2d field of view, vision algorithm in grid (ray casting)
The '-' ReadKey conditional goes into negative territory. That may cause some metaphysical disturbances for our X. I'd suggest limiting the lower end of visibility.
elsif ($key eq '-'){ ! $pov_radius < 1 and $pov_radius-- }The ReadKey function can take octal values for timings so the program will self close after some time without a keypress.
while ( my $key = ReadKey(010) ){
In Section
Cool Uses for Perl