saves: decode and edit champion experience (skill matrix) #331

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opened 2026-10-24 09:45:52 +02:00 by jqueuniet · 0 comments

jqueuniet commented

2026-10-24 09:45:52 +02:00

Owner

Decode and edit champion experience, so tools can show and change skill levels.

Scope

Accessors / setters on Champion for the skill[5][4] matrix (0x5F–0xAE, 22 encoded bits per value per the mask notes in hero.rs).
A helper deriving the level the engine displays from those values. Formula to ground-truth against [SKPROJECT] before landing; document it in docs/formats/saves.md.
Matching ChampionJson fields, re-applied on deserialize; setters reject values the mask cannot encode.
sbonus stays read-only (literal, not persisted).

Acceptance

Round-trip byte-exact on all save fixtures.
Derived levels match in-game displayed levels for at least one DOS and one Mac fixture.
Setting a value outside the 22-bit encodable range is an error, not a silent truncation.

Needed by the web editor's experience/levels form.

Decode and edit champion experience, so tools can show and change skill levels. ## Scope - Accessors / setters on `Champion` for the `skill[5][4]` matrix (0x5F–0xAE, 22 encoded bits per value per the mask notes in `hero.rs`). - A helper deriving the level the engine displays from those values. Formula to ground-truth against `[SKPROJECT]` before landing; document it in `docs/formats/saves.md`. - Matching `ChampionJson` fields, re-applied on deserialize; setters reject values the mask cannot encode. - `sbonus` stays read-only (literal, not persisted). ## Acceptance - Round-trip byte-exact on all save fixtures. - Derived levels match in-game displayed levels for at least one DOS and one Mac fixture. - Setting a value outside the 22-bit encodable range is an error, not a silent truncation. Needed by the web editor's experience/levels form.

jqueuniet added the

area/saves

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2026-10-24 09:45:52 +02:00

jqueuniet referenced this issue from jqueuniet/dm2-web-editor

2026-10-24 09:46:18 +02:00

Edit champion experience and levels #10

jqueuniet added this to the dm2-tools project

2026-10-24 09:49:02 +02:00