Researched the licence at each of the four itch.io sources. Two of the four
forbid redistribution, and publishing a repository containing them is exactly
that, so they are out of the tree.
0x72 DungeonTileset II CC0 1.0 commercial ok, no credit required
Helton Yan Pixel Combat CC BY 4.0 commercial ok, CREDIT REQUIRED
Fire Pixel Bullet 16x16 custom non-commercial, NO REDISTRIBUTION
750+ Effect and FX Pixel custom non-commercial, NO REDISTRIBUTION
Both bdragon1727 packs state verbatim: "You cannot do: Resell / redistribute
this asset." The FX pack's paid tier is no better for this purpose -- "You can
NOT re-distribute the file, no matter how much you modify it" -- so paying does
not unlock it and neither does editing the art.
bullets.png and impact.png therefore move to assets/local/, gitignored.
Art.bullets_texture() / impact_texture() load them at runtime and return null
when absent; the bullet renderer falls back to the generated dot it used before,
tinted per kind so bullet types stay distinguishable. Nothing there may be
preload()ed -- preload resolves at compile time and would fail the build on
every machine without the files, which is every clone.
Verified both ways rather than assumed: with the files present the game uses
them and no fallback triggers; with them moved aside, 156/156 tests pass and the
game runs clean on the generated dots.
Added CREDITS.md, because Helton Yan's CC BY 4.0 makes attribution a licence
obligation rather than a courtesy. A file in the source tree does not discharge
it once the game ships -- an in-game credits screen is now a tracked todo, and
flagged as a licence requirement rather than polish.
NOT addressed here, and it needs a decision: these files remain in git history
at 9fa2e26. Removing them from the tip does not remove them from a clone. If
this repo is ever made public, history has to be rewritten (git filter-repo)
and force-pushed. Also, both bdragon packs are non-commercial in their free
tier, which conflicts with the stated Steam goal -- either contribute for the
commercial tier (still no redistribution) or replace with CC0 art, which would
solve both problems and let the assets back into the repo.
Terrain, actors, boss and bullets are sprites now, and four sounds play off
server events. 548KB total across seven files, out of 3.9GB of source packs.
- src/view/art.gd holds every atlas rect and sound path in one table, copied
from the 0x72 pack's own tile_list. Scattering coordinates through draw calls
would make re-cutting the atlas a hunt, and a wrong rect invisible.
- Bullets get one MultiMesh per kind rather than one overall: a
MultiMeshInstance2D carries a single texture and each kind needs a different
region of the sheet. Four draw calls, no custom shader passing UVs through
per-instance data.
- src/view/sfx.gd is a 16-voice round-robin pool. Bullet-hell fire rates mean
sounds overlap constantly, and identical sounds landing within two frames are
collapsed so a ring hitting eight bullets is a bang rather than clipping.
Every sound is triggered by a server event, never a local guess, so what you
hear matches what happened.
Audio was converted, not copied: the pack ships 24-bit/96kHz masters averaging
2MB. Downsampled to 16-bit/44.1kHz mono, silence-trimmed, and the shoot sound
hard-capped to 0.30s -- it came out at 2.03s, against a fire cooldown of 0.12s,
which would have smeared held fire into noise.
tests/unit/test_art.gd checks what cannot be eyeballed here: every atlas rect
lands inside its texture, every animation frame of a strip fits (the last frame
is what runs off the sheet, not the first), there is a sprite per bullet kind
and per enemy visual, and no sound is long enough to stack badly. A wrong atlas
coordinate does not error -- it silently draws the wrong pixels.
Licence sources recorded in docs/ASSETS.md now that they are known. All four
are free versions and four rows still say "confirm at source": free itch packs
vary on credit and commercial use, and there is no credits screen yet.
155 tests (was 146). check.sh, test.sh and smoke.sh pass.