GB Tile Editor
A downloadable editor
GB Tile Editor is a small tile editing tool for GB Compo 2025,developing completely in assembly.It's can also be used to create pixel art.
(and that's my first gb homebrew project)
Usage:
- When selecting tile:
- D-pad:move cursor
- A:select tile
- Select:copy tile
- Start:paste tile
- When editing tile:
- D-pad:move cursor
- Select+A/B:Choose color of A/B
- A/B:Draw pixel
- Start:Clear/Save/Quit
This tool is made for Game Boy,but you can also using it with emulators on different platforms.
Feel free to report bugs and advice below,and I'm waiting your art works made with this!
Known bugs:
Start+B sometimes makes the cursor invisible when editing tileFixed(maybe)
Download
Development log
- Fixed known bug86 days ago
Comments
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(share something I made with this)
(btw,I uploaded a version with vblank interrupt used)
Super fun little tile editor! One thing I noticed was that save states don't work with everdrives for this. My guess is it has to do with no vblank interrupts being used for this. This was all I found for this so just wanted to throw it here in case you were interested in adding everdrive save state support in the future.
https://www.reddit.com/r/everdrive/comments/eo18q4/does_anybody_know_how_to_trig...
Thanks,and good to know there's someone running this project on a real hardware!(I don't have any :(
I'll try using Vblank interrupt in it if I have time...Hope that will solve the problem.
Found a small bug in tile editing mode:
Enter Tile Edit mode -> START -> B -> some times the location cursor sprites are no longer visible.
I think they are still getting moved in the OAM, but their tile is set to one which is all clear. Mainly happens for the first 3.
Edit: The tile select mode copy/paste instructions look like they might be reversed? START seems to paste and SELECT seems to copy.
And, a lil drawing:
Thanks for report!
Recently I don't have much time to working on this project,so there might be a little long time before it gets fixed.Sorry!
(And the drawing makes me think of something like Baba is you...maybe there's a demake on gb?)
Update: forget to wait Vblank so the writes to OAM doesn't count...😓
No worries, just reporting so the issue is known.
Would be great if someone made a baba is you demake. A while back I looked around but haven’t seen one yet. There are some open source clones which would make a port more feasible.