Adventure Engine

• Game
• Platform
• Engine
• Scrolling
• Gamepad

SP4CEBAR 2021-09-25 19:32 (Edited)

The goal is to make chunk-based procedural terrain with pre-made structures (from ROM), where the terrain can be mined by the player (stored in persistent RAM)

Version history

• 0.1 procedural terrain
• 0.2 fixed chunk refreshing in negative X, made the sprite-walk limits symmetrical, added S P E E D
• 0.3 added trees, added diagonal walking over wedges, added pickaxe (use pad 2 to mine), you can change speed with buttons A0 and B0
• 0.4 added tool switching with buttons A1 and B1 and added a car that can cruise around the terrain
• 0.5 trees are now distributed procedurally and they are now part of the main BG, which frees up a background for fancy raster FX
• 0.6 added a background with raster FX and fixed some bugs in the terrain generation
• 0.7 added overlay and I'm working on a reverse-background loader (debugging-sprites for chunk start-height are still on)
• 0.8 fixed the terrain generation: my forward randomwalk fits perfectly on my reverse randomwalk, the terrain will stay the same. I had to fix quite a lot of bugs to get this recursive system to work: 1: The stored chunk y values are outdated, I had to make a shift register 2: the reverse terrain is upside down 3: the shift register is one item too small, and more. Currently it's only a little buggy around coordinate X=0
• 0.9 tweaked the sprite coordinates and limits for the car, and added a snow biome (just a palette), I'm glad that I could use a small input in my nested sine "random" function to determine the biome (multiple consecutive chunks need to be the same) without making it recursive
• 0.10 added a city biome with city buildings and I made the sprites keep their horizontal flip

Successors

• Chunk loader engine

G-9 2021-09-25 19:49

Good, but the map changes when I go right then I go left

SP4CEBAR 2021-09-25 19:55 (Edited)

Fixed, it was caused by negative mod being mirrored (mod is used by NX to loop the screen)
EDIT: oh you're referring to another "bug"
yeah, due to the way I generate the terrain, I need to make another generator for the other direction

G-9 2021-09-27 16:19

Nice

was8bit 2021-09-27 18:31

Nice looking trees :)

SP4CEBAR 2021-09-27 19:40

Thanks

Timo 2021-09-28 19:06

Looks better and better!

was8bit 2021-09-28 19:26

Very cool 3d effects :)

G-9 2021-09-28 19:39

It’s Awesome right now

SP4CEBAR 2021-09-28 21:39 (Edited)

Thanks :D
It turned out so much better than I thought it would, procedural terrain gives so much possibilities!

SP4CEBAR 2021-10-06 15:19 (Edited)

This engine is 1 dimensional, and it's limited and messy compared to my new Chunk Loader Engine which can load from custom sources, and can detect collision with pixels inside a cell
so I'll be using that engine inside this engine to make this work better

BGelais 2021-10-06 17:05

can be usefull for my Moon Recon (pico-8) game portation to lowresNX :)

SP4CEBAR 2021-10-06 17:13 (Edited)

Feel free to use it :)