Ports pokefirered's Birth Island Deoxys puzzle and its battle in full.
Puzzle (src/core/game3/deoxys.lua), from src/field_specials.c:2319-2456:
- Task_DoDeoxysTriangleInteraction with the 11 rock positions, the 10
per-step caps and the pre-reset step-counter read that pret uses.
- IncrementBirthIslandRockStepCount wired into StepEvents.onStepTaken.
- MoveDeoxysObject / SetDeoxysTrianglePalette palette swaps, realised via
a new OwSprites.setObjectPalette colour substitution because palettes
are baked to RGBA at extract time.
- FLDEFF_MOVE_DEOXYS_ROCK (67) and FLDEFF_DESTROY_DEOXYS_ROCK (68), plus
setfieldeffectargument plumbing and the rock-move lerp / rock-shatter
field effects.
- DoDeoxysTriangleInteraction = 0x1AB added to Std.SPECIAL, with real
handlers for it and SetDeoxysTrianglePalette.
Battle: seteventmon SPECIES_DEOXYS, 30 expands to CreateEnemyEventMon,
which the engine already implements, so the encounter flows through
Encounters._pendingWild into StartLegendaryBattle. No new code needed
there; tests now pin the whole chain.
Fixes the Deoxys battle theme. Both battle-BGM sites gated on species
386, but FRLG's SPECIES_DEOXYS is 410 (species.h:419) and 386 is
SPECIES_VOLBEAT (species.h:395), so Deoxys silently fell through to the
generic wild theme. Extracted Audio.legendaryBattleSong as the single
source of truth, keyed by the FRLG internal species id, matching the
switch in src/battle_setup.c:349.
Verification: 24/24 Deoxys groups, game3_special_events_test,
engine tier 593/593, luacheck 0/0 in 970 files, plus the hand-run
game3 battle/field-effect/object/step suites.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
bryanthaboi