This cart is a 10th grade class' collective extension of mboffin's Lander from his incredible GameDev Zine. Posted here to share with non-pico8 friends.
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This is a re-implementation of PICO-8's own pseudo-random number generator state algorithm.
Press any button to tick the software RNG, and the hardware RNG as well. The text will turn red if the software RNG state doesn't match the 64-bit RNG state within the base RAM layout.
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512px under
Year 4096. A burried building with lasers and traps. How many lives will it take to leave this place ?
- Jump, wall jump and dodge lasers
- 18 memory cards to collect
- 32 rooms to explore (with lasers in them)
- Auto-save
- 1 red cube
- Lots of lasers !
Controls
- Arrows : move
- V (or X) : jump
- C (or Z) : grab/drop
Move and jump
Grab and drop
Wall jump
About
This game is my first Pico-8 game. It is also the first game I manage to finish after a few attempts with game engines such as Unity and Godot. It took me 1 month to complete the first published version. The Pico-8 restrictions allowed me to define a manageable scope for this game. In the end, I used the entire space available in the map editor and the spritesheet editor. The code uses every token allowed.
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I've hit a really bizarre error; my code has no coroutines, but it fails with "attempt to yield from outside a coroutine"
I've simplified it down as much as I could; while removing unrelated cruft (e.g. the sort function from my new project template that I wasn't actually using anywhere) the bug would arbitrarily appear or disappear.
The bug will either get triggered 100% of the time or 0% of the time when you run the cart, but its presence or disappearance arbitrarily changes depending on what other unrelated code there is in the cart.
For example, tab 0 is 15K of function foo() end repeated over and over again. They're commented out right now, and the bug is present. If you comment them back in, the bug disappears.
Commenting out the body of pqb (which prints many many u64 objects) seems to remove the bug for good (no matter how many foos I comment in or out). I'm not too experienced with metatables; I think I may be at fault for something I'm doing inside u64.__tostring? sometime variation of this code give a slightly differently-formatted error message that jumps me into the middle of my __tostring method. or maybe printh is having issues dumping so much text to the console? I dunno
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It's nearly midnight and there are still presents to deliver, and treats to eat!
Controls:
Press x to deliver presents and score points.
Press o to jump over vegetables and through obstacles.
Earn 5 seconds every 250 pts.
You can hold up to 8 presents, earning one back every treat you eat. Santa's magic also regenerates presents over time, and it gets more powerful the more calories he has.
Beware, Santa-ing is hard work and burns lots of calories. What's more, vegetables are super healthy to elven physiques and actually remove calories!
Get special treat and time bonuses every 2500 pts.
Reach 5000 points for the full suite of treats!
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Here is Sprite Show 2 mouse only , a graphic tool for Pico8 users and more specifically for pixel artists and coders.
Sprite show is particularly useful for helping graphic designers to test the sprites they have just drawn without needing to code them. You can very easily make them move on a black background and on decors. If your creation does not work exactly as you want you could immediately return to the pico8 editor to improve it. In this tool the sprites are already drawn , and you can test all the functionalities . First of all, start by selecting the sprites in Sprite Bank then come back to the menu and click _Show and make your sprite coming to life. Have fun.
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Left/Right/Up/Down to move
Z - Jump / Cancel / Skip dialogue
X - Interact / Accept
A short story about finding a new home. I've made it in the spring of 2020. Back then I found myself kinda adrift, too: just moved to a new home, lost the connection to my past, the pandemic has just started and pushed everyone in their little rafts of apartments.
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Your ship has stopped in deep space to perform repairs. The crew are on a spacewalk when suddenly predators warp in from hyperspace. Save the crew!
Frantic shoot-em-up action inspired by 8-bit classics such as Uridium, Defender, Robotron, Asteroids and Thrust.
The controls are explained on the title screen.
You'll get a higher score the more risky your play:
- fly fast to get a score multiplier for each kill
- the bogies evolve to more dangerous forms that are worth more points
- you can earn big points by rescuing crew members far from the ship
There are four different ships. You'll encounter new challenges on later missions, and need to adapt your tactics.
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P3
Fast Match 3 Game
it's a kind of zookeeper clone
bug reports and suggestions welcome
gameplay:
use arrow keys/dpad to move the cursor
press x to select the tile you want to move
change tile with any neighbour
you can only change if there is a match of 3 or more same tiles
to complete a level you must match a specific number of tiles, the number of tiles raises with the level number
time is always playing against you
music by Gruber: Picotunes Vol.2 Song 10 https://www.lexaloffle.com/bbs/?pid=62911#p
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Here's a little toy that makes sound. Balls bounce around the screen and make different noises when they collide with each other. You can nudge the white ball around with the arrow keys. I tried to add some very minor lighting effects on the balls and to make the sounds respond to the force imparted on each collision.
The code is, of course, a mess.
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Here is something I've been working on since getting into PICO-8 this summer.
I wanted to share it before the end of the year...
picoknife
It's Yet Another Commandline Tool for manipulating .p8 and other files.
Useful for batch scripting, theming the HTML player, reverting mistakes, etc.
It has a git-like syntax: picoknife [command] [file] [extra args]
As of this version 1.0 there are 8 commands:
- map to export a map image
- sheet to export a spritesheet image
- sprites to export individual sprite images
- label to export a label image
- setlabel to apply an image to a .p8 or .p8.png or the HTML player
- sethtml to modify the colors, icons, title, metadata of the HTML player
- colorimage to apply 16-color palette to an existing image file
- copy to duplicate a .p8 file with modifications
I will continue to add features. Currently only for Windows and Mac, sorry!
Downloads and README on GitHub:
https://github.com/rtouk/picoknife
The full HELP:
https://github.com/rtouk/picoknife/blob/main/HELP.txt
Cheers!
Touk
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The export command and the -export command line option do not flatten #includes when exporting a .p8.png file. A cartridge exported from a .p8 program that uses #includes cannot be run.
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TO LOAD THIS PICO-8 CART in immediate mode type,
load #trucolor256
VVhat's new ?
12/16/21
✅ Changed code so it will load any image, 3-bytes per pixel or 4-bytes per pixel such as images that include transparent layers. Thanks to @jo560hs for catching this error.
✅ Set the code to exit if you choose WEBSITE. No need for it to keep running.
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This was an exercise I was doing in transcribing music from sheet music - in this case, the first Gymnopédies from Erik Satie's 3 Gymnopédies - and it actually turned out to contain a really interesting little technical challenge.
[hidden]The thing about Gymnopédies 1 from a PICO-8 perspective is that there are simply too many voices in the harmony to contain in four channels. So, obviously, arpeggios.
...but also, Gymnopédies 1 is a very calm piece of music - tormented (one is instructed to play this "Lent et douloureux", or roughly "slow and painful" in English), but emotionally quiet. The plodding beat of the piece is the low bass note on the downbeat, not the middle chords between them, and launching directly at full volume into an arpeggio is far too dramatic and disruptive. So the question becomes: how do you simultaneously fade in and out an arpeggio while arpeggiating?
Which, I mean, custom SFX instruments, of course. But I actually accidentally played myself initially, because the first thing I always do looking at a piece of sheet music is ask, "how large can I make the subdivisions?", and the piece is entirely in quarter notes, so I made my subdivision a quarter note. And if each measure of 3/4 is three lines, then I can't use arpeggios in the music SFX because they overlap - I have to use arpeggios in the custom SFX instruments.
...and there are more distinct chords in the piece than I have custom SFX instrument slots. So I have to compromise. And I can't do much shaping of the notes, because I don't have any subdivisions within them. It functioned, but I was not happy.
This version makes each line an eighth note. Because each line is an eighth note, each block of two quarter notes where I want my arpeggios lands either on the border between two four-line blocks containing no other notes or in a four-line block by itself...
...and therefore I can build my arpeggios directly in PICO-8 and let custom SFX instruments handle the fade-in and fade-out. I have six custom SFX instruments and all the arps are, very nearly, the exact notes in the score.
And I can do more shaping of the other notes, because they cover twice as many lines.
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I've just used the music() command (other than the game loop, that was the extent of my code) to play two music tracks (with 7 sfx).
function _init() music() end function _update() end function _draw() end |
When I came back to the sfx editor - silence. Pressing keys on the keyboard entered notes, but without the usual and expected sound.
I tested muting and unmuting to no effect.
Pressing space bar for playback had a positive effect - the track played back, and I was able to enter notes and hear them after that.
Tested running the cart again, with the same resulting silence.
I'm running Windows 10 and Pico-8 0.2.4.
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