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Testing

by zep
Cart #nights-0 | 2024-03-14 | Embed ▽ | No License
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Cart #mandelsaver-2 | 2024-03-19 | Embed ▽ | License: CC4-BY-NC-SA
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About

Save your precious pixels with this Mandelbrot fractal screensaver for Picotron.
Watch as the multi-coloured infinate fractal goodness stylishly reveals the meaning of life*
*(not guaranteed)

Installation

Save this into /appdata/system/screensavers to add it to your permanent screensaver list in Settings.
(copying to "system/..." will not be permanent, as system contents reset on each Picotron restart)

If you don't have the above path yet, you can start from the default system ones, using the following command:
cp /system/screensavers /appdata/system/screensavers

[ Continue Reading.. ]

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Tic Tac Toe.

Cart #tictactoegame-0 | 2024-03-17 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA

1 comment


This is my custom wallpaper based on the default robot.p64!

Here, it's displayed with my three colorful custom themes:

Bubblegum

Blueberry

OrangeJuice

The bot moves on a sine wave and blinks, and the clouds scroll across the sky!

Cart #shignrobotwallpaper-0 | 2024-03-17 | Embed ▽ | License: CC4-BY-NC-SA
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Here's a thread to tutorialize how to do the most common Pico-8 commands in Picotron. Show how they are the same, or how they may be slightly different.

So:

--spr
--sspr
--sfx
--music
--rects, circs, lines
--pset, pget?
--mset, mget?
--fget, fset?
--math stuffs
--etc.

Please note if a) the command is part of the list of Picotron commands and b) if it currently works (or may just not be implemented yet).

Picotron API functions: https://www.lexaloffle.com/bbs/?pid=143245#p

Please no questions, only answers here. Thanks!

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Cart #namfont-3 | 2024-03-20 | Embed ▽ | License: CC4-BY-NC-SA
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Me as Lostcadesoft will be back on game making on this new cool #picotron. This is my snippet for use of sprite based font! (originaly snippet by @thattomhall on Pico-8) This is the font I'll use on my first games's release on #picotron. He're my share, use it if you like it. I love that classic Namco/Nintendo font!

-The SPRINT x/y cordinate are in 8x8 boundaries caracter block.
-uppercase letters only supported.

If some of you guys got something better about custom 8x8 retro font snippet, up to you!

Enjoy!

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update: there are basically 3 tools that are relevant here:

  • this tool (sprimp) -- maybe still useful, but superceded by p8x8:
  • p8x8: a tool to fully convert PICO-8 carts to Picotron carts (some assembly required) -- this grew out of sprimp
  • my aseprite exporter plugin -- still useful

You probably want to check out p8x8 instead, but I'm leaving this thread as it is since it may still be useful or interesting to some people.


Cart #sprimp-1 | 2024-03-18 | Embed ▽ | License: CC4-BY-NC-SA
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tada! now you can import pico8 spritesheets. and map too!

importing a .p8 file

  • put your game.p8 file somewhere inside picotron's file system

[ Continue Reading.. ]

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Cart #multtaskchicken-6 | 2024-04-09 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Pong but smol.

Cart #mini_pong-0 | 2024-03-17 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Snake game in PICO-8.

Cart #snakegame-0 | 2024-03-17 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Cart #sandandotherstuff-0 | 2024-03-17 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A lil sand game I made when checking out cellular automata.

Controls
Mouse1: Place
Mouse2: Erase
X/Z: Material select

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Pong in PICO-8.

Cart #pong_game-1 | 2024-03-17 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Cart #function_tool-2 | 2024-03-17 | Embed ▽ | License: CC4-BY-NC-SA
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I made a useful tool to look at what parameters are expected from picotron's api
You can also see in what file it is implemented and inspect the code!

It only works for functions that are implemented in lua, when it's done in c it's not visible, and some lua functions don't have much code in them and redirect a variable amount of parameters toward a c function

I also exported the list of functions with their parameters if I could find them:

table	USERDATA
C	USERDATA:__add
C	USERDATA:__band
C	USERDATA:__bor
C	USERDATA:__bxor
C	USERDATA:__div
C	USERDATA:__index
C	USERDATA:__len
C	USERDATA:__mod
C	USERDATA:__mul
C	USERDATA:__newindex
C	USERDATA:__sub
C	USERDATA:__tostring
C	USERDATA:add
C	USERDATA:attribs
C	USERDATA:band
C	USERDATA:bor
C	USERDATA:bxor
C	USERDATA:clear
C	USERDATA:convert
C	USERDATA:copy
C	USERDATA:cross
C	USERDATA:distance
C	USERDATA:div
C	USERDATA:dot
C	USERDATA:get
C	USERDATA:height
C	USERDATA:magnitude
C	USERDATA:matmul
C	USERDATA:matmul2d
C	USERDATA:matmul3d
C	USERDATA:mod
C	USERDATA:mul
C	USERDATA:set
C	USERDATA:sort
C	USERDATA:sub
C	USERDATA:transpose
C	USERDATA:width
table	_G
string	_VERSION
C	_fetch_local
C	_fetch_remote
Lua	_process_event_messages ()
C	_signal
C	_store_local
C	_update_buttons
Lua	abs (a)
C	add
Lua	add_line (s)
Lua	all (c)
C	apply_diff
C	assert
C	atan2
C	blit
C	btn
C	btnp
C	camera
C	cd
C	chr
C	circ
C	circfill
Lua	clear_key (scancode)
C	clip
C	cls
C	cocreate
C	collectgarbage
C	color
Lua	coresume (c, ...)
table	coroutine
C	coroutine:close
C	coroutine:create
C	coroutine:isyieldable
C	coroutine:resume
C	coroutine:running
C	coroutine:status
C	coroutine:wrap
C	coroutine:yield
C	cos
C	costatus
C	count
Lua	cp (f0, f1)
C	create_diff
Lua	create_gui (head_el)
Lua	create_process (prog_name, env_patch, do_debug)
Lua	create_undo_stack (, ...)
C	cursor
Lua	date (format)
table	debug
C	debug:debug
C	debug:gethook
C	debug:getinfo
C	debug:getlocal
C	debug:getmetatable
C	debug:getregistry
C	debug:getupvalue
C	debug:getuservalue
C	debug:setcstacklimit
C	debug:sethook
C	debug:setlocal
C	debug:setmetatable
C	debug:setupvalue
C	debug:setuservalue
C	debug:traceback
C	debug:upvalueid
C	debug:upvaluejoin
C	del
C	deli
C	dtime
Lua	env ()
C	error
Lua	exit (exit_code)
Lua	fetch (location, ...)
Lua	fetch_metadata (filename)
C	fget
C	fillp
C	flip
C	flr
Lua	foreach (c, _f)
C	fset
C	fstat
C	fullpath
Lua	function_info (fun)
C	get
Lua	get_clipboard ()
Lua	get_display ()
Lua	get_draw_target ()
Lua	get_spr (index)
C	getmetatable
Lua	include (filename)
C	ipairs
Lua	key (scancode)
Lua	keyp (scancode)
C	line
C	load
C	ls
Lua	map (ud, b, ...)
table	math
C	math:abs
C	math:acos
C	math:asin
C	math:atan
C	math:ceil
C	math:cos
C	math:deg
C	math:exp
C	math:floor
C	math:fmod
number	math:huge
C	math:log
C	math:max
number	math:maxinteger
C	math:min
number	math:mininteger
C	math:modf
number	math:pi
C	math:rad
C	math:random
C	math:randomseed
C	math:sin
C	math:sqrt
C	math:tan
C	math:tointeger
C	math:type
C	math:ult
Lua	max (a, b)
C	memcpy
Lua	memmap (addr, a, offset, len)
C	memset
Lua	menuitem (m, a, b)
Lua	mid (a, b, c)
Lua	min (a, b)
Lua	mkdir (p)
C	mount
Lua	mouse ()
C	music
Lua	mv (src, dest)
C	next
C	note
Lua	notify (msg_str)
Lua	on_event (event, f)
C	ord
C	oval
C	ovalfill
C	pack
C	pairs
C	pal
C	palt
C	pcall
C	peek
C	peek2
C	peek4
C	peek8
Lua	peektext (i)
C	pget
C	pid
Lua	pod (obj, flags, meta)
C	poke
C	poke2
C	poke4
C	poke8
Lua	print (str, x, y, col)
Lua	printh (str)
C	pset
C	pwd
Lua	pwf ()
C	rawequal
C	rawget
C	rawlen
C	rawset
Lua	readtext (clear_remaining)
C	rect
C	rectfill
Lua	reset ()
Lua	rm (f0)
C	rnd
C	select
C	send_message
C	set
Lua	set_clipboard (, ...)
Lua	set_draw_target (d)
Lua	set_spr (index, s, flags_val)
C	setmetatable
C	sfx
Lua	sgn (a)
C	sin
C	split
C	spr
C	sqrt
C	srand
C	sspr
C	stat
Lua	stop (txt, ...)
Lua	store (location, obj, meta)
Lua	store_metadata (filename, meta)
table	string
Lua	string:basename (self)
C	string:byte
C	string:char
C	string:dump
Lua	string:ext (self)
C	string:find
C	string:format
C	string:gmatch
C	string:gsub
Lua	string:hloc (self)
C	string:len
C	string:lower
C	string:match
C	string:pack
C	string:packsize
Lua	string:path (self)
C	string:rep
C	string:reverse
C	string:sub
C	string:unpack
C	string:upper
Lua	sub (str, ...)
C	t
table	table
C	table:concat
C	table:insert
C	table:move
C	table:pack
C	table:remove
C	table:unpack
Lua	theme (which)
C	time
C	tline3d
C	tokenoid
Lua	tonum (, ...)
C	tonumber
Lua	tostr (val, as_hex)
C	tostring
C	type
Lua	unmap (a)
C	unpack
C	unpod
C	userdata
table	utf8
C	utf8:char
string	utf8:charpattern
C	utf8:codepoint
C	utf8:codes
C	utf8:len
C	utf8:offset
C	vec
Lua	vid (mode)
C	warn
Lua	window (w, h, attribs)
Lua	wrangle_working_file (save_state, load_state, untitled_filename, get_hlocation, set_hlocation)
C	yield

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Cart #require-0 | 2024-03-17 | Embed ▽ | License: CC4-BY-NC-SA
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I wrote Lua require function based on the include function found in /system/lib/head.lua:791.

This function loads Lua modules similar to standard require found in Lua:

  • it loads the file
  • executes the file
  • returns the module returned by included file
  • caches the module, so next call to require will return already loaded module

How to use:

  • put the source code of require function in your main.lua:
function require(name)
   if _modules == nil then
   		_modules={}
   	end

	local already_imported = _modules[name]
	if already_imported ~= nil then
		return already_imported
	end

	local filename = fullpath(name..'.lua')
	local src = fetch(filename)	

	if (type(src) ~= "string") then 
		notify("could not include "..filename)
		stop()
		return
	end	

	-- https://www.lua.org/manual/5.4/manual.html#pdf-load
	-- chunk name (for error reporting), mode ("t" for text only -- no binary chunk loading), _ENV upvalue
	-- @ is a special character that tells debugger the string is a filename
	local func,err = load(src, "@"..filename, "t", _ENV)
	-- syntax error while loading
	if (not func) then 
		send_message(3, {event="report_error", content = "*syntax error"})
		send_message(3, {event="report_error", content = tostr(err)})

		stop()
		return
	end

	local module = func()
	_modules

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=143480#p)
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Anybody know what the minimum system requirements are? I've seen Pico-8 running on 32bit Win7 netbooks and was wondering if Picotron would as well.

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I wanted to share a few projects that I've been working on to prove out that making low-vision / blind accessible games is possible in PICO-8!

To get to the meat of it, here are the two games that my friend and I were able to put together that we built in prep for, and as a submission to the Games for Blind Gamers game jam:
Tiger & Dragon - https://jrjurman.itch.io/tiger-dragon

Lunch Gambit - https://jrjurman.itch.io/lunch-gambit

The games require a screen reader if you want to hear the text being read aloud, but the long and short of it is that the text on the right will be read out to screen readers. For people who might have trouble reading the text or need especially large fonts, the right side panel respects the font-size of the page, and allows players to zoom in if that would help readability.

The way that we were able to accomplish this is by having a special HTML template that reads the GPIO output from PICO-8 - pico-a11y-template

[ Continue Reading.. ]

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Cart #pico_ripples-1 | 2024-03-17 | Embed ▽ | License: CC4-BY-NC-SA
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A nice little raindrops-on-a-pond type of effect. Though perhaps with more of a shifting rainbow color scheme than most ponds.

Changelog

v1.01: Fixed initial splash height so smaller ripples should be more visible. This, to my eye, adds some pleasing visual variety.

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A limited graphic program for Picotron (stripped-down recreation of Desmos)

Planned features

  • ❌ Make the different functions editable within the program
  • ✅ Optimize rendering of axis and increments
  • ❌ Improved UI (zoom slider, collapsible sidebar)
  • ❌ Have the coordinates of a point appear when cursor hovers above a line
  • ❌ Preferences menu to change theme, increments etc.

Cart #picographv2-0 | 2024-03-17 | Embed ▽ | No License
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Version 0.2

  • Added infinite axis and increments
  • Equations are now -∞ < x < ∞, upgraded from -100 < x < 100
  • Equation resolution now scales with zoom (higher resolution zoomed in, lower resolution zoomed out)

PREVIOUS UPDATES

[ Continue Reading.. ]

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Cart #picotron_utilities-3 | 2025-02-18 | Embed ▽ | License: CC4-BY-NC-SA
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I made a handful of commandline utilities for picotron that you might find useful.

https://github.com/Rayquaza01/picotron-utilities

So far, Picotron Utilities has:

cat - print files
touch - create new files
tree - print tree view of a directory
wget - download a file using fetch()
grep - search in a file or recursively search through all files in a folder
frange - print a file or range w/ line numbers
pwd - print the current working directory
echo - print given arguments
fd - search for a file name
stat - print file status and metadata

Installing as a Yotta Package

You can install the utilities included in this cart with yotta util install #picotron_utilities

[ Continue Reading.. ]

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makes locs on desktop

usage: loc path (name)

put code in appdata/system/util/loc.lua
you can change file name to whatever you like, like ln.lua to use as ln

function ext(str)
	for i=1,#str do
		if (str:sub(i,i)==".") return i-1
	end
	return #str
end
local orig=env().argv[1]
if (not orig) print("usage: "..env().argv[0].." path (name)") exit(1)
if (orig:sub(#orig)=="/") orig=orig:sub(1,#orig-1)
if (orig:sub(1,1)!="/") orig=fetch("/ram/system/pwd.pod").."/"..orig
if (not fstat(orig)) print("file does not exist ("..orig..")") exit(1)
local name=env().argv[2] and #env().argv[2]!=0 and env().argv[2] or orig:basename()
name=name:sub(1,ext(name))
local targ="/desktop/"..name..".loc"
if (fstat(targ)) print("loc already exists ("..targ..")") exit(1)

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=143431#p)
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