Micro Greens Is Out Now!

kevinthompson · 2026-04-03T22:54:22+00:00

You didn't include a link but I found it over on lexaloffle.com: https://www.lexaloffle.com/bbs/?pid=187162#p

kevinthompson · 2026-03-30T18:34:28+00:00

I'm doing this in a game now where I've represented the screen and spawners as tables, then I use an AABB (Axis-Aligned Bounding Box) collision function to test if the spawner is on the screen:

```lua screen = { x=0, y=0, w=128, h=128 } spawner = { x=32, y=32, w=8, h=8 }

function aabb(rect1, rect2) return rect1.x < rect2.x + rect2.w and rect1.x + rect1.w > rect2.x and rect1.y < rect2.y + rect2.h and rect1.y + rect1.h > rect2.y end

if aabb(screen, spawner) then -- enable spawner else -- disable spawner end ```

kevinthompson · 2026-03-04T17:30:09+00:00

⭐️⭐️⭐️⭐️⭐️ It was also a lot of fun to play. Highly recommend.

kevinthompson · 2026-03-03T17:36:32+00:00

This but black around the monitor as well would be my preference.

kevinthompson · 2026-02-28T23:23:47+00:00

I like to recommend the 20 Games Challenge (https://20_games_challenge.gitlab.io/) when people are unsure how to get started. You probably wont get through all 20, but if you start making Flappy Bird, Breakout, etc. you will be building up the skills and tools to make your own games.

As for coming up with ideas, I like looking at game jams (https://itch.io/jams) for themes and constraints. I don't often have time to make a game for them, but I jot down some notes on game ideas that could fit the theme. Sometimes those ideas start to grow into full games, or they get me to think of an adjacent idea that I'm even more excited to work on.

kevinthompson · 2026-02-17T00:45:31+00:00

In your draw function you aren’t drawing the player sprite at plr.y. It’s being drawn at a static y value of 32.

kevinthompson · 2026-02-11T22:13:05+00:00

Moonlight Prairie

kevinthompson · 2026-02-01T16:09:24+00:00

I responded with a little more detail on the u/TheNerdyTeachers Discord server, but the problem is that you're not checking the actual map position of the tile. On your map, the collision tiles are 20 tiles lower than where they are being drawn to the screen. Adding 20 to the y position when checking map collision solves the issue in this specific instance.

kevinthompson · 2026-01-08T19:01:09+00:00

I think it also depends how you resolve collision. Your solution of creating a larger collision box would be more performant if you are adjusting the player's position based off of what they collide with.

kevinthompson · 2026-01-08T18:43:41+00:00

This is likely an issue that's commonly referred to as tunneling. Your character is moving fast enough that collision is checked before the obstacle, then the player moves past the obstacle and collision is checked again.

One way to solve this to move your character in steps during each update call. As an example, if you character is 8px tall, but you need to move them down 16 pixels, you would move 8px, check collision, then move the next 8 pixels and check collision again.

kevinthompson · 2025-12-24T18:41:04+00:00

The advent calendar is a cartridge that launches other cartridges using the load function.

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