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Cart #jipozisuyo-0 | 2020-08-24 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A super simple game to kickstart the engines.

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Cart #gayrefuto-0 | 2020-08-24 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Welcome to the world of Dragmania!
Beware your rivals, defeat them in a race while dodging an onslaught of bullets and oil pits
Seek salvation in the boosts and shields across the track

All feedback and criticism welcome! Thank you for trying our game

Art by: colin malone aka FlyingChair www.colinmalone.com

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Cart #cursed_petri-0 | 2020-08-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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I stumbled upon this very odd behaviour while making this tweetcart :
https://www.lexaloffle.com/bbs/?tid=39326

After loosing some sleep over why a pixel than can randomly go in any of the 4 direction always build staircases, here is what the poor souls of the #help channel on the pico8 discord server and I have found out :

  • When trying to have randomly one of these results :
    dx=0 dy=1
    dx=0 dy=-1
    dx=1 dy=0
    dx=-1 dy=0

I wrote this :

dx=rnd({-1,1}) dy=0
-- %50 chance to swap them
if(rnd({true,false})) then dy=dx dx=0 end

The behaviour disappears if I use any other method of achieving this result

  • HOWEVER, the distribution of dx and dy with this method appears to really be random

[ Continue Reading.. ]

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Cart #petri-0 | 2020-08-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Finally took the time to make a #tweetcart of this cute effect I found!
It makes me think of bacteria on a Petri dish c:
Credit to @Naxane_ on the #pico8 discord server for the help fixing a particularly /w e i r d/ bug with rnd() on tables, and for golfing it into a tweet!

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Cart #noggins_tweet-0 | 2020-08-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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This is a "demake" loosely based off an old flash game called "Noggins". It's my first playable tweetcart and was a nice challenge for dipping my feet into making tweetcarts :)

Use the arrow keys to resize your box to fit the green box before the red one reaches it

x=0y=0m=200t=1s=.5q=-64b=btn
f=flr
a=abs
r=rect::_::cls()
if(t==1)w=f(rnd(64))h=f(rnd(64))
if(t<m and f(a(x))==a(w) and f(a(y))==a(h))t=0
t+=1camera(q,q)
if(b(0))x-=s
if(b(1))x+=s
if(b(2))y-=s
if(b(3))y+=s
r(-w,-h,w,h,3)r(-x,-y,x,y,7)i=w*(t/m)o=h*(t/m)r(-i,-o,i,o,8)flip()goto _
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Cart #electrocardioground-0 | 2020-08-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Keep the beat alive.

Instructions:

Up or X: Raise right beat
Down or Z: Raise left beat

Avoid crashes.
Avoid depleting the beats.

Made for LOWREZJAM 2020.

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Have you ever wanted to use numbers that were bigger or smaller than the range you're given in PICO-8? Perhaps you want some more digits of precision for the fractional part of your numbers. Or maybe you're interested in doing math in a severely inefficient way...

Introducing, the Decimal Floating Point library for PICO-8!


(This example cart calculates the value of pi in all three "datatypes", using Viète's formula.)

Wait, what? Doesn't Lua have floating point already?

Not PICO-8's Lua. It actually uses 16.16 fixed point numbers. Because of this lack of floating-point numbers on PICO-8, I decided to make this library to fill that void (not that anyone asked it to be filled, but still).

[ Continue Reading.. ]

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Cart #mouse_shooter_thing-0 | 2020-08-23 | Code ▽ | Embed ▽ | No License


So I need help with 4 things.

  1. Do player/ enemy collision with rocks

  2. Make enemies at random spots

  3. Make enemies move once toward the player every move

  4. Make a random map out of 8 maps

Plz comment on how to do stuff and please make it simple for me. I dont care about tokens

2 comments


Road to ECS

Intro

This is about teaching myself Entity-Component-System (ECS) pattern. My current goal is to implement a few basic features one by one to build a code snippet library, starting from just drawing things on screen. Code will be in my GitHub/road-to-ecs and also as cartridges in this blog thread.

Some personal background: [hidden]I'm a software engineer, professional coding background is a bit of data comms in C and lot of Java starting from 1.4, some Android and mostly Java EE for enterprise systems with web fronts. For the last 5 or so years I haven't really coded except shell or other script/configuration languages for automating configuration management, CI/CD and so on (nowadays they call it devops).

I've been interested in PICO-8 for some time, but finally got it as a part of the great itch.io Black Lives Matter bundle. To me gamedev is previously unknown territory and it's fun to learn how games differ from other applications.

Also playing around with PICO-8 on my summer vacation revealed how much brain capacity my dayjob takes. On work days there is no chance that I could do anything productive with PICO in the evening. Scary.

I'm used to (and like) working within frameworks. I got a bit of blank paper syndrome with PICO-8 initially :) First I tried to apply traditional OOP but it didn't feel like a good fit for games. Browsing this BBS I found about ECS and it feels like a better fit for game applications. Now I just have to bend my mindset to it!

[ Continue Reading.. ]

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Cart #motu-6 | 2021-08-15 | Code ▽ | Embed ▽ | No License
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The battle for Eternia is in your hands!

Side with He-Man and his allies or Skeletor and his minions in this new take on the classic Barbarian sword fighting game.

Battle 8 levels against increasingly difficult foes or play against a friend. You have the power!

This Pico-8 cart is bursting with the Power of Grayskull, featuring:

  • 16 Characters
  • 16 combat moves
  • 4 stages
  • 8 difficulty levels
  • 3 game modes
  • A kickass soundtrack

Update 1.6 - 2021/08/15

-fixed crash in "vs cpu" select screen after credits cycle (Introduced in v1.5)

Update 1.5 - 2021/03/01

code optimization reclaimed over 110 tokes so:

-fixed an AI bug that made flying overhead chop overpowered with some opponent levels, now cpu reacts more like original code

[ Continue Reading.. ]

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EDIT: This has been resolved by Zep.


As the title says, the "code snippet within a line" markdown on the BBS doesn't properly respond to the end marker, and instead runs down to the end of the whole line.

Assume the following raw text:

This is a `code snippet` within a line!

This should be expected (italics used to represent the text within the backticks):
This is a code snippet within a line!

But the observed result is:
This is a code snippet within a line!

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Cart #tempo-0 | 2020-08-22 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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tempO

Play as a marble that can slow time and shatter other marbles by charging into them. Go for a highscore across 3 different difficulties, collect power-ups, and try to survive for as long as you can!


How To Play

Use Arrow Keys/D-Pad to roll your marble around the map. Hold Z/C/🅾️ to slow time and charge your marble in the direction you're holding. Release to send your marble flying in that direction. While your marble has a flaming trail, it will shatter anything it touches. Shattering other marbles has a chance to drop power-ups (The higher the combo, the higher the chance) and large marbles have a greater chance of dropping power-ups. Hearts will heal your marble by one heart, Invincibility will allow you to shatter marbles without charging, and x2 Charge makes your charge shots x2 faster while also instantly shattering large marbles. Have fun!

[ Continue Reading.. ]

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Hi, i'm working on a project with this function;

function amount_living_neighbours(x, y, board)
    local res = 0
    for i= -1, 1 do 
        for j = -1,1 do
            if i == 0 and j == 0 then goto continue end
            if x+i >= 0 and x+i <= 127 and y+j >= 0 and y+j <= 127 then
                if board[x+i][y+j] == white then
                    res += 1
                end
            end
            ::continue::
        end
    end
    return res
end

and the interpreter tells me that i'm attempting to index a field ? in the line "if board[x+i][y+j] == white then " i.e it's null. Should'nt lua interpret it as a parameter and not as a nil? i'm not acquantained to the language and seems pretty nasty to use globals with this code.

5 comments


Hokori 0.2a

Cart #hokori-5 | 2020-08-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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And she keeps truckin' with these updates!

Now features a 2x2 screen level to jump around in! Also added semi-solid platforms because I'm bad at setting priorites! HOORAY!
Also first attempts at a somewhat decent text-display implementation (looks good, token efficent, what more would you want?)
For now the hearts are just FAKE (like the friendships of celebrities)- But this what the HUD will more or less look like (unless I add a broom-meter, but idk if that'd be fun, might be!)

Update Notes:


0.0a

  • you can jump
  • fancy animations and working map colission (yay)

0.1a

  • added broom float
  • slightly edited level
  • crawl jump added
  • prettier debug HUD
  • M O O N

0.2a

  • 4 times larger level
  • moving camera (wip)
  • hilarious and relatable messages to give you big funny and teach the game
  • map colission simplified (saved tokens and allowed inclusion of semi solid platforms)
  • P A R A L L A X - M O O N

public progress of next version:

  • fixed wrong sprite showing for one frame when turning rightwards whilst floating

[ Continue Reading.. ]

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-- de parcourir le monde
-- et d'y roder
-- by noemie sauvage
-- de parcourir le monde
-- et d y roder
-- by noemie sauvage
-- helped by fabrice de chaumont
-- music provided by robbyduguay

"De parcourir le monde et d'y rôder" is adapted from the novel by Grégory Le Floch, published by Christian Bourgois éditeur.

The player finds something. Impossible to determine what it is. He will then have only one goal: to find its owner. The player will enter buildings and question the people he meets to get their opinion on the thing. But you'll have to avoid babies falling out of windows!

This game is adapted from an inventive, zany and very funny novel about the search for meaning.

[ Continue Reading.. ]

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Hello everyone! Welcome to the world of gun.io!
This is a cart-based on woomy-arras.io(arras.io fan-made game(diep.io fan-made game...))

Here's how to play!

1.Arrow keys to move(bam, bam, and bam!)
2.Left-click to shoot! (Ahh, a bullet.)
3.Press 'e' or shift 'E' to turn on auto-fire
4.Press 'C' or shift 'C' to turn on auto-turn
5.Z to scroll through the tanks(on the top-left) and X to switch the to tank selected)
6.Press shift-A or shift-b to switch to new op/weak tank
7.Press 'D' or shift 'D' for 😵

How to use the menu!

1.Keyboard to type
2.Press backspace or delete to delete
3.Press enter/return to play.

The Game!

More on how to play here:
https://www.youtube.com/watch?v=dQw4w9WgXcQ
Log(You'll find the game here!):


1.0:
Cart #gunioworld-0 | 2020-08-23 | Code ▽ | Embed ▽ | No License


1.1:
Cart #gunioworld-2 | 2020-08-25 | Code ▽ | Embed ▽ | No License


You can now change the bullet speed to any value (when modding.)
"FFA bullet bug" still exsit!
1.2 + tank creator(at the bottom of the code in tab 0):
Cart #gunioworld-4 | 2020-08-26 | Code ▽ | Embed ▽ | No License


Added hybrid and escort!
Press shift-A to switch to escort.
Each human(tank/player) now has its own path.
I still can't fix the "FFA bullet bug."
1.3 + tank creator(at the bottom of the code in tab 0):
Cart #gunioworld-5 | 2020-08-26 | Code ▽ | Embed ▽ | No License


I still haven't fixed "FFA bullet bug."
Added new "lazer" rickroll tank.
Shift-B to switch to "Luke Skywalker" rickroll tank.

[ Continue Reading.. ]

0 comments


Cart #miraclesandmagic-4 | 2023-08-01 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A long time ago, before the age of machine, was an era of MIRACLES AND MAGIC. Dodge SPINNING BULLETS and read MANY SIGNS on your way to steer the course of history!

Press X for actions and C to advance dialogue.

[16x8]

Hey everyone! This was done for a game jam over the summer, and it was my first time making a game using Pico-8 -- not that I made much outside of Pico-8 to begin with! I must say I really liked the experience! The included demos are really useful. Special thanks to oli414 for the dialogue system, and to lexaloffle for the fun game making environment.

[ Continue Reading.. ]

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Cart #yogemudodu-7 | 2020-09-07 | Code ▽ | Embed ▽ | No License
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v 1.2

This is my first time using Pico-8. To play, just move the pen with the arrow keys. I plan to take this further such as including the option to pick up and put down the pen, giving the player a reason to draw (such as mini games), using the cursor instead of the arrow keys, and more. I am still learning so any feedback would be greatly appreciated :)

Update v 1.4

So I added a scribble option. Not sure why, just seemed necessary. I have no clue what I want to do as far as an objective goes, but I'm sure I'll figure something out. Also there's a boundary bug. It's ok, I'll fix it soon.

Update v 2

I took away the scribble function and decided to make a clear canvas option instead. I think my next course of action is to add a menu and allow the user to change the size of the line, the color of the line, and possibly an eraser or undo function. I don't know if I set this up very well though, since I'm still new to Lua and Pico-8.

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Made a cool shooter concept using the mouse. Isn't much but I hope someone can find something cool to do with it.

Cart #jodarisogi-0 | 2020-08-20 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Also, didn't even notice it, but the background makes that weird gray dot illusion.

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Cart #fgetty-1 | 2020-08-20 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Pseudo motion blur using the extended palette + dithering with fillp.

The crux of making this happen is:

local defaultFills = {
  0b0000000000000000,   -- solid
  0b0000000000000001.1, -- single pixel missing
  0b0000010100000101.1, -- 4 pixels missing
  0b0101101001011010.1, -- half pixels missing
  0b1111101011111010.1, -- 4 pixels rendered
  0b1111111111111110.1, -- 1 pixel rendered
}

-- Derived from https://stackoverflow.com/a/10086034/473961
function resizeAndFill(input, outputLength)
  assert(outputLength >= 2, "behaviour not defined for n<2")
  local step = (#input-1)/(outputLength-1)
  local result = {}
  for x=1,outputLength do
    result

[ [size=16][color=#ffaabb] [ Continue Reading.. ] [/color][/size] ](/bbs/?pid=80976#p)
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