Made for Ludum Dare. It’s 2 minutes before the deadline, I need some sleep now.
9 comments
A mini adventure game.
This cartridge extensively abuses Lua memory, lossy zlib compression, data-stored-in-code, and dget to render a 600×252 image with pixel-perfect scrolling. This is more a tech demo but I ended up doing a full mini game for Ludum Dare 37.
I’ll write a postmortem to explain all the hacks.
This function abuses Unicode and ANSI color codes to output a screenshot of the current screen to a text terminal such as xterm. You can record the PICO-8 rendering and replay it using “cat”! You can run PICO-8 over ssh! You can be anything you want.
I also set up a telnet service demonstrating the feature:
telnet lol.pm 12345Here is how it looks like; this is PICO-8 (small window) launched from GNOME Terminal (large window) just after screenshot() was called:
And here is the code:
pico-8 cartridge // http://www.pico-8.com
version 8
__lua__
-- screenshot to console
-- by sam hocevar
function screenshot()
local l={ 16, 17, 89, 29, 131, 240, 251, 230, 197, 214, 220, 47, 39, 103, 211, 223 }
local e="\027["
printh(e.."?25l") -- hide cursor
for y=0,63 do
local ofg,obg=-1,-1
local s=e..(y+1)..";1\072" -- uppercase h
for x=0,127 do
fg,bg,ch=pget(x,y*2),pget(x,y*2+1),"\226\150\128"
if bg>fg then
fg,bg,ch=bg,fg,"\226\150\132"
end
if fg!=ofg or bg!=obg then
s=s..e
local t=""
if (bg!=obg) s,t=s.."48;5;"..l[bg+1],";"
if (fg!=ofg) s=s..t.."38;5;"..l[fg+1]
s=s.."m"
end
s=s..ch
ofg,obg=fg,bg
end
printh(s..e.."0m"..e.."\075") -- uppercase k
end
printh(e.."?25h") -- show cursor
end
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The terminal must be UTF-8 and 256-color aware, so this will probably work in most Linux and OS X terminals. On Windows I could test it successfully with the MSYS2 terminal.
Will not work well on slow machines or in the web player.
I’m toying with both hi-color images (using 60Hz flickering) and data compression, this is my first attempt. The image size is 128×188.
The picture is of course a tribute to the Deluxe Paint series!
