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I was putting together a Minecraft-themed intro for my Twitch streams a while back. It all started when I made a silly grass block in PICO-8. Then I thought, "Hey, couldn't I just arrange this block into an array and create art with it?" Sure enough:

Cart #wogeweduyi-0 | 2022-04-29 | Code ▽ | Embed ▽ | No License
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Pretty basic, right? Not bad, gets the job done. Scrolls and shows whatever you put into a 2-D array, with the sprite ID as data and 0 always meaning "empty". Cool. That led me to think about "what if I made an actual 3-D ish Minecraft scene with this?" The map system could be useful for isometric games, too.

Putting it together was pretty easy, aside from the rendering math. You have to get your offsets just right when dealing with isometric, or you can get some super weird results. You also need to structure your data in a way that ensures the drawing order layers correctly without separating things into discrete layers. Thankfully, an isometric map format works best from the bottom, top left tile. Generally the top-most tile of the bottom layer. After tinkering around for a while, I discovered the correct offsets, verified through various tricks, and set out to make some fancier "tiles" for lack of a better word. I think it came out decent:

Cart #ripuguzune-0 | 2022-04-29 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Some palette rearrangement is going on to produce a better look, but I'm pleased with the assets I put together to test how expressive the mapping can be.

If you use it for anything, please let me know! I won't be building on this idea but it's a fun one.

P#111064 2022-04-29 17:24

I've recently finished writing a page on my personal wiki about coroutines, and quick examples on how to make the most of them. I would appreciate any feedback people have, including misconceptions I have regarding the execution model. Most of my PICO-8 work as of late has been figuring out how to create easy animation engines that are also expressive and flexible. I think I have the functionality down; now comes the hard part of nailing coroutine and data structure design for complex animations!

I'd love to read what you guys think of it.

https://wiki.zlg.space/programming/pico8/recipes/coroutine

Thanks for reading!

P#106853 2022-02-13 19:40

Hi there, fellow PICO-8 lovers. Today I want to share something I've been working on a little bit here and there throughout the year, and ask for a little feedback.

Cart #tojenanoja-0 | 2021-10-10 | Code ▽ | Embed ▽ | No License
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My endgoal for this text box is to be able to make decisions (2- or 3- options at most) and to add extra features, such as Zelda-like highlighting, chaining to another textbox (for conversation), and a page-break like feature to pace which lines get scrolled in. So far, I have a custom inset and outset animation with sound, per-letter sfx, a throbbing button indicator to advance, and clean removal from the objlist.

It's taken me quite a bit of trial and error to pull this off. If you know of ways to simplify my code while supporting all of the same features, please let me know!

The textbox is implemented in coroutines that run in parallel until certain conditions are met. This allows one to think of the phases of the textbox in terms of a Gannt chart.

This is the first time I've gotten something together that feels almost ready for production, so any tips or feedback are appreciated!

P#98479 2021-10-10 23:04

It took me a while to update to PICO-8 0.2.1b, so when I upgraded, I took the opportunity to play around with the pattern feature implemented a while ago. I also wanted to try out the new oval tools. The result is this little guy. I wanted to draw with only shape drawing tools, and used a simple table with some runtime values. It could probably be cleaned up, but I think it's a cute enough demo to learn a few new features. I enjoyed figuring out how to draw a bubble without using the pixel editor.

Cart #tamemanize-0 | 2021-01-23 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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If there are any style or logic improvement suggestions, please share them! The screen edge collision logic isn't terribly good, so I know that needs work.

P#86729 2021-01-23 23:52

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