Pico-8 is a virtual machine and fantasy console for making, sharing and playing tiny games. Users create "cartridges" through a Lua-based environment.
Here is the Pico-8 homepage: https://www.lexaloffle.com/pico-8.php
Questions tagged [pico-8]
16 questions
3
votes
1 answer
Pico-8 coroutines are occasionally dead
I was trying to replace a for-loop with coroutines to move the stars:
--fine
function _update()
for c in all(boids) do
move_boid(c)
end
end
--broken
function _update()
for c in all(boids) do
coresume(cocreate(move_boid),c)
end
end
Notice…
knh190
- 2,338
- 1
- 12
- 27
3
votes
1 answer
Deserialization of simple Lua table stored as string
I'm transfering a lua table literal in a string from a web application in to PICO-8 that I'm trying to deserialize back in to a lua table in PICO-8.
The string is in the form '{"top", {"one", {"one a", "one b"}}, {"two", {"two a", "two b"}}}'
To try…
K Groll
- 468
- 1
- 8
- 16
2
votes
1 answer
Lua)) how to loop table of table and get a specific property?
I am really newbie in lua. I have this lua code
local gun_info = {
g_sword={rate=0.5;spd=0;dmg=1;ammo=1;};
g_pistol={rate=0.5;spd=5;dmg=1;ammo=40;};
g_knife={rate=0.8;spd=5;dmg=1;ammo=1;};
g_shuriken={rate=0.3;spd=5;dmg=1;ammo=40;};
…
javaprogrammer
- 55
- 1
- 7
2
votes
1 answer
Modifying a Linked List With a Function in Lua
My question is regarding the below code snippet:
function add_node(list, v)
list={next=list, val=v}
end
function print_linked_list(list)
local l=list
while l do
print(l.val)
l=l.next
end
end
root=nil
root={next=root, val=0}
add_node(root,…
Colin
- 23
- 4
2
votes
1 answer
IF ELSE IF END gives Unclosed Function error
I am looking at PICO-8 for the first time.
This simple IF statement give me the error "UNCLOSED FUNCTION AT LINE 1".
function MYTEST()
local x = 1
if x==1 then
print("x==1")
else if x==0 then
print("x==0")
end
end
I admit the…
rodoherty1
- 527
- 3
- 12
1
vote
1 answer
Wrong variable update in PICO-8
I was building a simple snake game from scratch as practice for PICO-8 and Lua.
I'm attempting to have the body follow the head by creating a copy of the old body locations and update along the length.
I created a t_old variable to store the…
Joseph Koch
- 13
- 2
1
vote
0 answers
Buildroot for pico-8 on raspberry pi0w keyboard input issue
I have been tinkering around with buildroot to try to put together an image with wifi and ssh support and is able to run Pico-8.
I'm really close and have everything running successfully, but Pico-8 is not accepting keyboard inputs. I'm sure it's…
itsonlym3
- 11
- 2
1
vote
1 answer
PICO-8 making a button press show an output of text only once?
I'm a complete newbie to both Lua, PICO-8, and coding in general. I'm having trouble with a function I want to put in my first program. The text is all placeholder, I will change it once I get the code right and comprehend it.
Basically, before the…
B. Hoyt
- 13
- 4
0
votes
1 answer
Lua equivalent of dictionary.get() method?
How do I access a dictionary using a parameter?
In python I can do dictionary.get(param)
Is there an equivalent to this in lua?
I want to do something like this:
function make_object_from_flag(x, y, flag)
local flag_obj = {
[1] =…
digital_drako
- 103
- 2
0
votes
1 answer
Raycasting bends the World wierdly. PICO-8. (LUA)
I am trying to make a Wolfenstein3D-like game, using pico-8 (that's a 2d engine with many limitations) and the world just bends very weirdly.
Gif of running around
My code: (Warning LUA! Confusing language. starts counting at 1...! )
function…
Nizart
- 1
- 1
0
votes
1 answer
PICO-8 Export Command in a GitHub CI/CD Pipeline
I'm working a small PICO-8 game that I am embedding into my website. There's an export command I use to create the game files for the web player, but I can only run this command locally in the PICO-8 application.
Is there any support to run this…
greg
- 830
- 12
- 30
0
votes
1 answer
Coding error in Pico 8 code (lua). (Newbie here)
I have recently started coding and wanted to try out Pico-8. A game development platform that uses Lua. I watched tutorials on how to create a platformer and have run into an obstacle with my code. Spid in the code is the name of my main sprite and…
Pterrible
- 11
- 2
0
votes
1 answer
Html issue Iframe,Canvas
I use this gameengine pico8 and you can export a html version of your game. I put it in on my website but now every other iframe frome my website isn´t working the way it should anymore i guess the code from pico8 messed something up but im not…
Delidragon
- 159
- 16
0
votes
0 answers
Attempt to index local (a number value)
sorry for the dumb question, but I'm new to programming
On run this code i'm get error: attempt to index local (a number value)
This part of code!
function simple_haunt_ai(mon,m) --constructor
if m.typ=="walker" then
for m in all(mon)…
no_name
- 1
- 1
-1
votes
1 answer
lua, iterating and calling all same-named-functions of n=3 tiers of tables
Say I have multiple tables in {game} like {bullets}, where {bullets} has multiple tables as found below. How would I iterate through and call all the update functions contained in {game}?
--Below is a simplified example, Assume each table in…
kite
- 254
- 1
- 9