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bad surprise this morning, pico-8 html exports have no sound in chrome.

I guess my chrome browser got an update (Version 66.0.3359.139), and now you have to actively click on an element to get sound? the problem with pico-8 is that somehow when sound output is "denied" at boot it doesn't come back.

it's ok on the bbs since you have to click on a play button. the fix on itch.io is to uncheck the "Automatically start on page load" box to get a play button. didn't find that option on gamejolt and I don't know about newgrounds and others.

In any case that's a trend that's here to stay, I've heard about that on macos/ios a while ago and I guess it will eventually happen on all browsers.

so pico-8 exports should get the play button too? or make it so the sound eventually comes back when authorised?

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Cart #52361 | 2018-05-04 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A mashup of Asteroids and The Falling Sand Game.

Fly your ship around with the cursor keys, build walls with X, shoot your gun with Z to pop bubbles.
When bubbles pop, sand will fall.
There is no winning and no losing, just chill out.
Check out the useful menu items!
Has music! (but you can mute it and listen to podcasts or whatever. I don't know what you do, you do you.)

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I'm currently unable to update the "Work in progress" Splore category in my PICO-8. When I try, it just says "Could not connect to BBS." All other categories update fine.

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Cart #52399 | 2018-05-05 | Code ▽ | Embed ▽ | No License
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Play this frenetic arcade game with 3 other friends and avoid asteroids, collect gems and push your buddies away to survive in the wilderness of space!

This is the prototype, made with Pico-8, of our new videogame we are developing: "Nitronauta".
You can play this version in singleplayer or 2 players using a keyboard but you have to use 4 different joysticks (XBOX controllers works) in order to play in 4 players.

If you want to play in more than 2 players with working joysticks support, we uploaded our game on our official itch.io page also: play Nitronauta: the Pico-8 version on our itch.io.

The new version of the game will include a more intuitive control system and a lot of new features, such as a storyline and bosses.

If you want to support our game development you can use this link: donate!

[ Continue Reading.. ]

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   for i=0,i<10,1 do
      if dset(i, variable) exists
         dset(i+1,variable);
     elseif dset(i,variable) doesnt exist
        dset(i,variable);
     end

   end

I want to do something like the code above.

I know the code isn't right (somehow user must break the for loop)but it's just an idea.
but I don't know if it is possible to do so.

scores should be saved everytime user finishes the game but to implement that feature, I should check if previous value in dset returns something.

If user finished game 10 times, 10 scores should be saved

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Cart #52300 | 2018-05-02 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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[edit: slight animation improvement, bugfix]

Press X to jump over the hazards. And try to catch the birds for extra points.

High score is saved using cartdata.

This is a late birthday present for a good friend (Matt). The little fluff is a character we used to doodle a lot when we were supposed to be paying attention in class. It was fun to make it come to life for a cart.

Happy Birthday, Matt! Now you are old. Ha! Soooo sooo old, you old guy.

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Demo of a missile seeking behavior and a nice flame/smoke effect. Not sure what I would use it for. Code is pretty clean and easy to follow. Toggle random target pos and mouse control with X key.

Uses some code for timers in my snippets repo https://github.com/unstoppablecarl/pico-8-snippets

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Cart #52336 | 2018-05-03 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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v1
Cart #52283 | 2018-05-02 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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The BBS seems to operate in a time zone that's 6 hours behind me. All time stamps on posts and replies are 6 hours behind my local time. That's not a huge problem, but what's weird is that the relative time also is behind! So on the main page of the BBS, it'll say "6 hours ago" on posts that were just made.

Can I set my time zone in settings somewhere? If not, can the upcoming BBS upgrade perhaps support that?

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Cart #52250 | 2018-05-01 | Code ▽ | Embed ▽ | No License
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Cart #52247 | 2018-05-01 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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We built this survival-endless runner genre mash-up for Ludum Dare 41.

Use Z to jump, arrow keys to craft items like food, armor, and weapons.

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Is it supposed to actually work? I mean load("anothercart.p8.png").

I've had some feedback that it doesn't but can't find any info here on the BBS...

(I don't have a RPi, so can't test first hand)

edit:bump

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So I'm working on a tile-based movement engine, and I was having some trouble figuring out how to handle collisions with objects that are "solid." Here is what I have so far for the collision detection:

function getPreviousPos()  --This is ran before moving positions, at keypress
  player.xprevious = player.x
  player.yprevious = player.y
end

function isCollide()
  if (player.x == solid.x and player.y == solid.y) then 
    player.x = player.xprevious
    player.y = player.yprevious
  end
end

This is just a rough markup since I'm away from my computer. But I'm basically trying to find out how I can replaced solid.x and solid.y with a reference for a specific sprite. (So that this check is not just for a single, individual sprite, but that sprite as a whole.)
I hope I'm being clear enough, thanks!

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Cart #tweetjar-0 | 2023-08-25 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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I wanted to make a little compilation of tweetcarts for a while and The Pippin Barr Game Idea Jam #2: The Museums Jam gave me an excuse to throw something together. Please enjoy this museum of tweets.

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Cart #54038 | 2018-07-09 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A simple, cute retro version of classic Chess made in Pico-8. Full implementation of almost all of the Chess rules with a juicy interface and some basic AI to play against. Created as part of the Chess Jam 2018. Here is the game's entry on itch.io.

Jucy animations were very important to me. My Chess AI will never be competetive. So I focused on the game being pretty, readable and fun to play. I wanted to add even more functions but sadly, I ran out of tokens. I tried to squeeze in as many as I could.

[ Continue Reading.. ]

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Cart #52460 | 2018-05-06 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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As a temporary side project, I hastily ported Randy Gaul ImpulseEngine to pico-8/LUA.

Usage

Requires a mouse

  • left mouse button: create a random shape at mouse cursor or drag shapes
  • right mouse button: show/hide world or body options
  • button c: show/hide debug information

Dev Log

The physic engine is a direct port from Randy Gaul's work, detailled in a series of articles:
How to Create a Custom 2D Physics Engine

[ Continue Reading.. ]

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Hi! NEW to voxatron- idea to import files (hope voxatron gets this feature) so from Qubicle,
slice image and then stack images on top of eachother to recreate the model! see proof of concept gif of tiger.. Make sure each image png
exported has BLACK for transparency! Its time consuming doing this one by one- which is where a collab
can come in- someone with coding to script it automatically one on top of other?!
Id like to collab with a coder anyway since Im new here (I do modelling though verseability.com/notbeaten.html)
well thanks hope someone understands my model importer method to improve!!!

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Cart #52208 | 2018-05-01 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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An example implementation of automatically-calculated delta time in Pico-8, allowing for framerate-independent game logic.
It's not much to look at, but a detailed description is available in the code comments.

Example use case:
You've built a project targeting 30FPS, but it turns out to be optimized enough to run at 60FPS.

Normally, switching from using _update to _update60 after the fact would be a painful job involving a lot of manual number editing, and you'd be screwed. However, if you had built your project with delta time in mind from the start, you could simply rename and everything will continue to move at the 'correct' rate.

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Cart #52204 | 2018-04-30 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Controls
Menu: Up arrow to go to instructions page. Up arrow again to start game.

Game: Up/down/left/right arrows to move. Z to set off green shockwave, X to set off blue shockwave.

Mechanics
Shockwaves will sweep away the rocks of the same colour, but your ship is vulnerable to either kind so you had better sweep carefully! Watch the cooldown marker in the bottom left corner.

Commentary
Bah I was doing so well with my 2D board game thing from a few nights ago but I really didn't have enough time to make it happen so this came together just today. It's an awful mess in many ways but came out better than it might have done.

itch.io page: here.

[ Continue Reading.. ]

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Cart #52162 | 2018-04-30 | Code ▽ | Embed ▽ | No License

Shoot 'em up, arena style!

First PICO-8 game, made sporadically over the weekend.

Anyone know how to F7 Label capture on a Mac?

TODO:
Music
CPU AI
More Levels
More Guns
More Backgrounds/Level doodads

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Cart #52159 | 2018-04-30 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Just got started with Pico-8 and decided to track a pretty cool song! Thanks to marq from pouët for the font.

Might expand this to little game eventually, but I'm happy with it as-is right now. PICO-8 is an awesome platform!

edit: Not sure if this is the right place for a music cart like this to be posted. If it should be somewhere else on the bbs, please let me know!

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