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I tried to learn how pico-8 platformers were built. But how does the save code or save program work for like items/powerups and different levels or scenes? Like when a character collects an item how is it store acrossed parts of the game?

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I've had a very hard time reproducing the exact minimal steps to cause this crash, so I'm just going to post the cart and steps to cause the crash and hope this is useful enough to track it down.

The bug does not occur on PICO-8 desktop, only on the BBS/webplayer.

It seems to be tied to remapping draw ops / spritesheet to highmem with either of the two lines:

poke(0x5f55,0x80)
poke(0x5f54,0x80)

But these alone do not seem to be enough to cause the crash. Here it is occurring in a cart I am currently working on:

Cart #bcb_12-10 | 2024-07-08 | Code ▽ | Embed ▽ | No License
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Steps:

  • Either:

    -- Press Z/C to attack right as the cart has loaded
    -- Crash

  • Or:

    -- Move a full screen or two rightward (X is jump, press twice to doublejump)

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Super Mario Bros. Demake DEMO

Hello all, today I wanted to present my Super Mario Bros. demake, in a work-in-progress state.
This has been worked on for about a month or two, mostly due to me trying to create my own platforming engine, but failing miserably, and some troubles. This demo uses the Advanced Micro Platformer engine by @mhughson. Check it out- it's pretty cool! Also, I know that his SMB remake also uses this engine, although his has larger sprites, and mine has smaller, you get what I mean..? Anyways, the cartridge is linked below, try it, although it's very barebones and spaghetti coded if you're looking into it with a technical view!
[8x8]

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Cart #jelpi_corruption-0 | 2024-07-11 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA

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Cart #defiance_of_pico_1_0-1 | 2024-07-15 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Hi everyone, this is my first PICO-8 game. It's a simple bouncy arcade game that is easy to pick up and play. Feel free to share any feedback!

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Cart #understand14-1 | 2024-07-11 | Code ▽ | Embed ▽ | No License
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draw a line to fit the rules of the board.

you need to guess the rules and solve them.

i have completed the basic function but the game is still in the early demo stage.

your suggestions for rules and levels are welcome!

please use hidden tags on rules you post to protect other players' experience.

todo

  • more rules
  • more levels
  • custom level by clipboard
  • automatically generate levels
  • joystick control
  • sound effect
  • title animation

credit

the idea of this game is come from

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Cart #bubblegum_kitty-2 | 2024-07-11 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Cart #stickhero-1 | 2024-07-10 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A demake of mobile game stick hero by ketchapp.

Controls:
-Hold z to build your bridge.
-Let go of z when you think the bridge is long enough.
-Press z when running to go below the bridge to collect cherries and then press z again to go back up.

Enjoy and any feedback is much appreciated :)

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Hey zep add free trial of PICO-8 pls!

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Cart #cyntron-0 | 2024-07-10 | Embed ▽ | No License
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anybody here like murder drones lol, well here is a cyn themed animated wallpaper. Use it if you like :D and modify as you will :)

animation based on https://steamcommunity.com/sharedfiles/filedetails/?id=2994033827&searchtext=solver+of+the+absolute+fabric and made in pixel composer :3

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Cart #rbits_2048-1 | 2024-07-17 | Code ▽ | Embed ▽ | No License
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I created this to teach myself PICO-8. It has animations, and should be 100% accurate to the original game, including scoring (please let me know if this is not the case). All the 2048 versions I've found on the PICO-8 BBS don't have animations, or have different rules.

Since PICO-8 only supports 16-bit signed integers, it would only allow scores up to 32767, which is a problem with 2048 where scores can go much higher than that. I had to create a long integer "class" to fix that, which took a while. However, it still only supports scores up to just over 3 million. I decided that's probably enough.

Git Repo
Original game by Gabriele Cirulli

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Cart #ruroripeku-0 | 2024-07-10 | Code ▽ | Embed ▽ | No License
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Cart #mousetrap-2 | 2024-07-09 | Code ▽ | Embed ▽ | No License
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Mouse: Oh yum! There is some cheese just lying on the floor! YAY!!11!

Human guy living in the house: Hey, that's MY cheese... shoots missile

Mouse: oh NO! (what kind of game description is this anyway?)


Use the arrow keys to move and z to burrow underground!

Dodge missiles and a certain traitorous bounty hunter...

Try to get 300 points!


[ Continue Reading.. ]

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by emu
Cart #sneak-0 | 2024-07-09 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Unfinished stealth puzzle platformer

Z = jump
X = reset

If you are within line of sight, NPC will charge at you

If you jump on top of them, you can kill them

But otherwise if they touch you, you're B U S T E D

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Cart #hackercat-1 | 2024-07-09 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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desk -> keyboard -> computer -> desk

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Cart #lumburgh-0 | 2024-07-10 | Code ▽ | Embed ▽ | No License
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Don't let the Middle Manager's unplanned work get in your way!

Issues with high Story Point values where Bugs are found now increase Capacity by 2.

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How do I play?

X - Jump
Z - Mach Run

D-Pad - Move

Playable Characters

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Cart #creepdodge_01-0 | 2024-07-08 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A simple test for using nothing but the code editor to make a game.
This one is a dodger, with you as a prawn vs germs.

Arrows to move prawn.

Enjoy!

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