gen1recomp/docs/gold-walkthrough/asm-walk/section-09-olivine-city-gym.md

Section 09 - Olivine City Gym

Source: ../section-09-olivine-city-gym.txt Maps covered: MAP_GOLDENROD_CITY (fly stop, optional), MAP_GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES (transit), MAP_GOLDENROD_UNDERGROUND, MAP_OLIVINE_CITY, MAP_OLIVINE_LIGHTHOUSE_1F .. MAP_OLIVINE_LIGHTHOUSE_6F, MAP_OLIVINE_GYM Badges / key milestones in this section: MINERALBADGE (ENGINE_MINERALBADGE), EVENT_BEAT_JASMINE, TM_IRON_TAIL (TM23), EVENT_JASMINE_RETURNED_TO_GYM (set on Lighthouse 6F, the gate for the gym even existing), the 6th-badge Rocket trigger (GoldenrodRocketsScript).

This section assumes the player already has the SECRETPOTION from Cianwood (section 8) and ENGINE_STORMBADGE (Chuck), which is what makes FLY usable at all.

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1. Route order

#	Map constant	asm file	Enter via	Leaves via	Why (walkthrough beat)
1	GOLDENROD_CITY (optional)	maps/GoldenrodCity.asm	Fly (SPAWN_GOLDENROD, ENGINE_FLYPOINT_GOLDENROD)	warp 15 at (11, 29) -> GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES warp 5	Only if raising an Eevee: buy the 500 haircut for happiness
2	GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES	maps/GoldenrodUndergroundSwitchRoomEntrances.asm	warp 5 at (4, 29) / warp 6 at (5, 29)	warp 4 at (5, 25) -> GOLDENROD_UNDERGROUND warp 2	Pure transit corridor to the salon
3	GOLDENROD_UNDERGROUND	maps/GoldenrodUnderground.asm	warp 2 at (3, 34)	back out the way in, then Fly	Talk to the older Haircut Brother at (7, 14), pay 500, happiness bump
4	OLIVINE_CITY	maps/OlivineCity.asm	Fly (SPAWN_OLIVINE, ENGINE_FLYPOINT_OLIVINE)	warp 9 at (29, 27) -> OLIVINE_LIGHTHOUSE_1F warp 1	Head for the lighthouse
5	OLIVINE_LIGHTHOUSE_1F -> 2F -> 3F -> 4F -> 3F -> 4F -> 5F -> 6F	maps/OlivineLighthouse[1-6]F.asm	ladders + one floor pit ("fall to the left of that one lass")	same ladders/pits back down	Hand Jasmine the SECRETPOTION
6	OLIVINE_LIGHTHOUSE_6F	maps/OlivineLighthouse6F.asm	warp 1 at (9, 15) from 5F warp 1	warp 1 at (9, 15) back to 5F	OlivineLighthouseJasmine -> EVENT_JASMINE_RETURNED_TO_GYM, clearevent EVENT_OLIVINE_GYM_JASMINE
7	OLIVINE_CITY	maps/OlivineCity.asm	OLIVINE_LIGHTHOUSE_1F warps 1/2 at (10, 17)/(11, 17)	warp 2 at (10, 11) -> OLIVINE_GYM warp 1	Walk to the gym door
8	OLIVINE_GYM	maps/OlivineGym.asm	warps 1/2 at (4, 15)/(5, 15)	same warps back to OLIVINE_CITY warp 2	Beat Jasmine, take MINERALBADGE + TM23

Spill into the next section: the walkthrough offers "fly to Ecruteak and go through the Lake of Rage" as an alternative to fighting Jasmine now. MAP_LAKE_OF_RAGE and the Route 42/43 chain belong to the next section; nothing in this section's asm depends on them.

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2. Maps

MAP_GOLDENROD_UNDERGROUND

• Script: maps/GoldenrodUnderground.asm (46:4900 GoldenrodUnderground_MapEvents, 46:4129 OlderHaircutBrotherScript)
• Blocks: maps/GoldenrodUnderground.blk
• Header: data/maps/maps.asm:123 -> map GoldenrodUnderground, TILESET_GATE, DUNGEON, LANDMARK_GOLDENROD_CITY, MUSIC_UNION_CAVE, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:110 -> map_const GOLDENROD_UNDERGROUND, 15, 18 (map group 1, the newgroup OLIVINE group, map id 45 - it is not in the Goldenrod group)
• Attributes: data/maps/attributes.asm:442 -> map_attributes GoldenrodUnderground, GOLDENROD_UNDERGROUND, $00 (no connections)

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	3	2	GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES	7
2	3	34	GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES	4
3	18	6	GOLDENROD_UNDERGROUND	4
4	21	31	GOLDENROD_UNDERGROUND	3
5	22	31	GOLDENROD_UNDERGROUND	3
6	22	27	GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES	1

Coord events (def_coord_events) - none.

BG events (def_bg_events)

x	y	type	script/item
18	6	BGEVENT_READ	BasementDoorScript
19	6	BGEVENT_READ	GoldenrodUndergroundNoEntrySign
6	13	BGEVENT_ITEM	GoldenrodUndergroundHiddenParlyzHeal (hiddenitem PARLYZ_HEAL, EVENT_GOLDENROD_UNDERGROUND_HIDDEN_PARLYZ_HEAL)
4	18	BGEVENT_ITEM	GoldenrodUndergroundHiddenSuperPotion (hiddenitem SUPER_POTION, EVENT_GOLDENROD_UNDERGROUND_HIDDEN_SUPER_POTION)
17	8	BGEVENT_ITEM	GoldenrodUndergroundHiddenAntidote (hiddenitem ANTIDOTE, EVENT_GOLDENROD_UNDERGROUND_HIDDEN_ANTIDOTE)

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
GOLDENRODUNDERGROUND_SUPER_NERD1	SPRITE_SUPER_NERD	5	31	STANDING_LEFT	OBJECTTYPE_TRAINER, sight 3	TrainerSupernerdEric	-1
GOLDENRODUNDERGROUND_SUPER_NERD2	SPRITE_SUPER_NERD	6	9	STANDING_UP	OBJECTTYPE_TRAINER, sight 2	TrainerSupernerdTeru	-1
GOLDENRODUNDERGROUND_SUPER_NERD3	SPRITE_SUPER_NERD	3	27	SPINRANDOM_FAST	OBJECTTYPE_TRAINER, sight 2	TrainerPokemaniacIssac	-1
GOLDENRODUNDERGROUND_SUPER_NERD4	SPRITE_SUPER_NERD	2	6	STANDING_RIGHT	OBJECTTYPE_TRAINER, sight 3	TrainerPokemaniacDonald	-1
GOLDENRODUNDERGROUND_POKE_BALL	SPRITE_POKE_BALL	7	25	STILL	OBJECTTYPE_ITEMBALL	GoldenrodUndergroundCoinCase (itemball COIN_CASE)	EVENT_GOLDENROD_UNDERGROUND_COIN_CASE
GOLDENRODUNDERGROUND_GRAMPS	SPRITE_GRAMPS	7	11	STANDING_LEFT	OBJECTTYPE_SCRIPT	BargainMerchantScript	EVENT_GOLDENROD_UNDERGROUND_GRAMPS
GOLDENRODUNDERGROUND_OLDER_HAIRCUT_BROTHER	SPRITE_SUPER_NERD	7	14	STANDING_LEFT	OBJECTTYPE_SCRIPT	OlderHaircutBrotherScript	EVENT_GOLDENROD_UNDERGROUND_OLDER_HAIRCUT_BROTHER
GOLDENRODUNDERGROUND_YOUNGER_HAIRCUT_BROTHER	SPRITE_SUPER_NERD	7	15	STANDING_LEFT	OBJECTTYPE_SCRIPT	YoungerHaircutBrotherScript	EVENT_GOLDENROD_UNDERGROUND_YOUNGER_HAIRCUT_BROTHER
GOLDENRODUNDERGROUND_GRANNY	SPRITE_GRANNY	7	21	STANDING_LEFT	OBJECTTYPE_SCRIPT	BitterMerchantScript	EVENT_GOLDENROD_UNDERGROUND_GRANNY

Object-event visibility convention (verified in engine/overworld/scripting.asm:879-898): appear clears the flag and disappear sets it, so an object is on the map only while its event flag is clear.

Scripts of interest

• GoldenrodUndergroundCheckDayOfWeekCallback (callback MAPCALLBACK_OBJECTS): readvar VAR_WEEKDAY and appear/disappear the four merchants. Who is standing there:

  • Sunday: younger brother + granny
  • Monday: gramps only, and only during MORN (checktime MORN)
  • Tuesday / Thursday: older brother
  • Wednesday / Friday: younger brother
  • Saturday: older brother + granny

  The walkthrough's "500 haircut" therefore only exists on Tuesday, Thursday or Saturday.

• OlderHaircutBrotherScript (46:4129): readvar VAR_WEEKDAY, bails to GoldenrodUndergroundScript_ShopClosed unless TUE/THU/SAT. Then checkflag ENGINE_GOLDENROD_UNDERGROUND_GOT_HAIRCUT (one cut per day, cleared by the daily reset), yesorno, checkmoney YOUR_MONEY, 500, special OlderHaircutBrother, then takemoney YOUR_MONEY, 500. DEF GOLDENRODUNDERGROUND_OLDER_HAIRCUT_PRICE EQU 500 is at the top of the file. The special returns 0/1 (cancel or Egg) or 2/3/4, which the script mirrors into EVENT_TEMPORARY_UNTIL_MAP_RELOAD_1/2/3 just to pick which of three "looks happier" lines to print.

• special OlderHaircutBrother -> engine/events/haircut.asm:15 -> HaircutOrGrooming, weighted roll over HappinessData_OlderHaircutBrother (data/events/happiness_probabilities.asm:1): 30% -> HAPPINESS_OLDERCUT1, 50%+1 -> HAPPINESS_OLDERCUT2, remainder -> HAPPINESS_OLDERCUT3. The actual deltas are data/events/happiness_changes.asm:13-15: +1/+1/+1, +3/+3/+1, +5/+5/+2 (columns are happiness <100 / <200 / otherwise). The younger brother (300, SUN/WED/FRI) rolls 60%+1 / 30% / rest for +1/+1/+1, +3/+3/+1, +10/+10/+4 - its jackpot row is strictly better than the older brother's, which the walkthrough does not mention.

Flags and events

constant	defined in	read/written by	meaning for a bot
ENGINE_GOLDENROD_UNDERGROUND_GOT_HAIRCUT (id 89)	constants/engine_flags.asm	checked+set by both *HaircutBrotherScript	one haircut per day, either brother
EVENT_GOLDENROD_UNDERGROUND_OLDER_HAIRCUT_BROTHER (0x754)	constants/event_flags.asm:1270	day-of-week callback	clear = older brother is standing at (7, 14)
EVENT_GOLDENROD_UNDERGROUND_YOUNGER_HAIRCUT_BROTHER (0x755)	constants/event_flags.asm	day-of-week callback	clear = younger brother at (7, 15)
EVENT_TEMPORARY_UNTIL_MAP_RELOAD_1/2/3 (0x000-0x002)	constants/event_flags.asm:5-7	haircut scripts	scratch, do not persist

Items - nothing the walkthrough takes here; the Coin Case itemball and the three hidden items belong to earlier sections.

Trainers - the four in the table above are optional and already beaten by this point in a linear run.

Wild encounters - none (indoor DUNGEON, no entry in data/wild/johto_grass.asm).

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MAP_OLIVINE_CITY

• Script: maps/OlivineCity.asm (49:4463 OlivineCity_MapEvents)
• Blocks: maps/OlivineCity.blk
• Header: data/maps/maps.asm:63 -> map OlivineCity, TILESET_JOHTO, TOWN, LANDMARK_OLIVINE_CITY, MUSIC_VIOLET_CITY, FALSE, PALETTE_AUTO, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:52 -> map_const OLIVINE_CITY, 20, 18 (group 1, id 14)
• Connections: data/maps/attributes.asm:143-145 -> north Route39 (ROUTE_39, offset 5), west Route40 (ROUTE_40, offset 9). No south/east.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	13	21	OLIVINE_POKECENTER_1F	1
2	10	11	OLIVINE_GYM	1
3	25	11	OLIVINE_TIMS_HOUSE	1
4	0	0	OLIVINE_HOUSE_BETA	1 (marked ; inaccessible in the asm)
5	29	11	OLIVINE_PUNISHMENT_SPEECH_HOUSE	1
6	13	15	OLIVINE_GOOD_ROD_HOUSE	1
7	7	21	OLIVINE_CAFE	1
8	19	17	OLIVINE_MART	2
9	29	27	OLIVINE_LIGHTHOUSE_1F	1
10	19	27	OLIVINE_PORT_PASSAGE	1
11	20	27	OLIVINE_PORT_PASSAGE	2

Coord events (def_coord_events)

scene	x	y	script label	effect
SCENE_OLIVINECITY_RIVAL_ENCOUNTER (= 0)	13	12	OlivineCityRivalSceneTop	rival cutscene, ends with setscene SCENE_OLIVINECITY_NOOP
SCENE_OLIVINECITY_RIVAL_ENCOUNTER (= 0)	13	13	OlivineCityRivalSceneBottom	same, mirrored movement

Scene ids come from the scene_script macro's own const_def (macros/scripts/maps.asm:12-36): SCENE_OLIVINECITY_RIVAL_ENCOUNTER = 0, SCENE_OLIVINECITY_NOOP = 1. By this section the scene is already 1 (the rival scene fires on the first Olivine visit, section 8), so both trip-wires are inert and a bot may walk x=13 freely.

BG events (def_bg_events)

x	y	type	script/item
17	11	BGEVENT_READ	OlivineCitySign
20	24	BGEVENT_READ	OlivineCityPortSign
7	11	BGEVENT_READ	OlivineGymSign
30	28	BGEVENT_READ	OlivineLighthouseSign
14	21	BGEVENT_READ	OlivineCityPokecenterSign (jumpstd PokecenterSignScript)
20	17	BGEVENT_READ	OlivineCityMartSign (jumpstd MartSignScript)

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
OLIVINECITY_SAILOR1	SPRITE_SAILOR	26	27	WALK_UP_DOWN (0,1)	OBJECTTYPE_SCRIPT	OlivineCitySailor1Script	-1
OLIVINECITY_STANDING_YOUNGSTER	SPRITE_YOUNGSTER	20	13	WALK_LEFT_RIGHT (1,0)	OBJECTTYPE_SCRIPT	OlivineCityStandingYoungsterScript	-1
OLIVINECITY_SAILOR2	SPRITE_SAILOR	17	21	WANDER (1,1)	OBJECTTYPE_SCRIPT	OlivineCitySailor2Script	-1
OLIVINECITY_OLIVINE_RIVAL	SPRITE_OLIVINE_RIVAL	10	11	STANDING_DOWN	OBJECTTYPE_SCRIPT	ObjectEvent	EVENT_RIVAL_OLIVINE_CITY

Note the rival object sits on the gym door tile (10, 11). InitializeEventsScript (engine/events/std_scripts.asm:520) sets EVENT_RIVAL_OLIVINE_CITY at new game, so he is hidden except during the cutscene, and the door is walkable.

Scripts of interest

• OlivineCityFlypointCallback (callback MAPCALLBACK_NEWMAP): setflag ENGINE_FLYPOINT_OLIVINE (engine flag id 70). This is what makes "fly straight back to Olivine City" legal; it was already set in section 8.

Flags and events

constant	defined in	read/written by	meaning for a bot
ENGINE_FLYPOINT_OLIVINE (id 70)	constants/engine_flags.asm:85	set by OlivineCityFlypointCallback	Olivine selectable on the Fly map
ENGINE_FLYPOINT_GOLDENROD (id 69)	constants/engine_flags.asm:84	set by maps/GoldenrodCity.asm:24	Goldenrod selectable on the Fly map
EVENT_RIVAL_OLIVINE_CITY	constants/event_flags.asm	set by InitializeEventsScript, appear/disappear in the scene scripts	clear = rival standing on the gym door

Items - none taken in this section.

Trainers - none on the overworld map.

Wild encounters - data/wild/johto_water.asm:239:

def_water_wildmons OLIVINE_CITY
db 6 percent ; encounter rate
db 20, TENTACOOL
db 15, TENTACOOL
db 20, TENTACRUEL

No grass table (data/wild/johto_grass.asm has no OLIVINE entry). Fish group is FISHGROUP_SHORE per the header row.

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MAP_OLIVINE_LIGHTHOUSE_1F .. 6F

• Scripts: maps/OlivineLighthouse1F.asm ... maps/OlivineLighthouse6F.asm
• Blocks: maps/OlivineLighthouse[1-6]F.blk
• Header: data/maps/maps.asm:112-117. 1F-5F are TILESET_LIGHTHOUSE, DUNGEON, LANDMARK_LIGHTHOUSE, MUSIC_LIGHTHOUSE, FALSE, PALETTE_DAY, FISHGROUP_SHORE; 6F swaps the music to MUSIC_VIOLET_CITY (line 117), which is a cheap way for a bot to confirm it reached the top.
• Dimensions: constants/map_constants.asm:99-104 -> every floor is 10, 9 blocks = 20 x 18 tiles (group 1, ids 34-39).
• Attributes: data/maps/attributes.asm:436 (6F) and neighbours - $00, no connections.

Warps - transcribed verbatim, all six floors.

OLIVINE_LIGHTHOUSE_1F:

idx	x	y	destination map	dest warp
1	10	17	OLIVINE_CITY	9
2	11	17	OLIVINE_CITY	9
3	3	11	OLIVINE_LIGHTHOUSE_2F	1
4	16	13	OLIVINE_LIGHTHOUSE_2F	3
5	17	13	OLIVINE_LIGHTHOUSE_2F	4

OLIVINE_LIGHTHOUSE_2F:

idx	x	y	destination map	dest warp
1	3	11	OLIVINE_LIGHTHOUSE_1F	3
2	5	3	OLIVINE_LIGHTHOUSE_3F	2
3	16	13	OLIVINE_LIGHTHOUSE_1F	4
4	17	13	OLIVINE_LIGHTHOUSE_1F	5
5	16	11	OLIVINE_LIGHTHOUSE_3F	4
6	17	11	OLIVINE_LIGHTHOUSE_3F	5

OLIVINE_LIGHTHOUSE_3F:

idx	x	y	destination map	dest warp
1	13	3	OLIVINE_LIGHTHOUSE_4F	1
2	5	3	OLIVINE_LIGHTHOUSE_2F	2
3	9	5	OLIVINE_LIGHTHOUSE_4F	4
4	16	11	OLIVINE_LIGHTHOUSE_2F	5
5	17	11	OLIVINE_LIGHTHOUSE_2F	6
6	16	9	OLIVINE_LIGHTHOUSE_4F	5
7	17	9	OLIVINE_LIGHTHOUSE_4F	6
8	8	3	OLIVINE_LIGHTHOUSE_4F	7
9	9	3	OLIVINE_LIGHTHOUSE_4F	8

OLIVINE_LIGHTHOUSE_4F:

idx	x	y	destination map	dest warp
1	13	3	OLIVINE_LIGHTHOUSE_3F	1
2	3	5	OLIVINE_LIGHTHOUSE_5F	2
3	9	7	OLIVINE_LIGHTHOUSE_5F	3
4	9	5	OLIVINE_LIGHTHOUSE_3F	3
5	16	9	OLIVINE_LIGHTHOUSE_3F	6
6	17	9	OLIVINE_LIGHTHOUSE_3F	7
7	8	3	OLIVINE_LIGHTHOUSE_3F	8
8	9	3	OLIVINE_LIGHTHOUSE_3F	9
9	16	7	OLIVINE_LIGHTHOUSE_5F	4
10	17	7	OLIVINE_LIGHTHOUSE_5F	5

OLIVINE_LIGHTHOUSE_5F:

idx	x	y	destination map	dest warp
1	9	15	OLIVINE_LIGHTHOUSE_6F	1
2	3	5	OLIVINE_LIGHTHOUSE_4F	2
3	9	7	OLIVINE_LIGHTHOUSE_4F	3
4	16	7	OLIVINE_LIGHTHOUSE_4F	9
5	17	7	OLIVINE_LIGHTHOUSE_4F	10
6	16	5	OLIVINE_LIGHTHOUSE_6F	2
7	17	5	OLIVINE_LIGHTHOUSE_6F	3

OLIVINE_LIGHTHOUSE_6F:

idx	x	y	destination map	dest warp
1	9	15	OLIVINE_LIGHTHOUSE_5F	1
2	16	5	OLIVINE_LIGHTHOUSE_5F	6
3	17	5	OLIVINE_LIGHTHOUSE_5F	7

Which warps are ladders and which are pits. Derived by decoding each floor's .blk against data/tilesets/lighthouse_collision.asm. Block $3a and $31 carry LADDER in their bottom-right tile; block $28 is tilecoll FLOOR, FLOOR, PIT, PIT, i.e. its two bottom tiles drop you a floor.

floor	tile	block	kind	goes to
1F	(10, 17), (11, 17)	$2e bottom tiles WARP_CARPET_DOWN	exit door	OLIVINE_CITY
1F	(3, 11)	$3a	ladder UP	2F (3, 11)
2F	(3, 11)	$31	ladder DOWN	1F (3, 11)
2F	(5, 3)	$3a	ladder UP	3F (5, 3)
2F	(16, 13), (17, 13)	$28	PIT	1F (16, 13) / (17, 13)
3F	(5, 3)	$31	ladder DOWN	2F (5, 3)
3F	(13, 3)	$3a	ladder UP	4F (13, 3)
3F	(9, 5)	$3a	ladder UP	4F (9, 5)
3F	(16, 11), (17, 11)	$28	PIT	2F (16, 11) / (17, 11)
4F	(13, 3)	$31	ladder DOWN	3F (13, 3)
4F	(9, 5)	$31	ladder DOWN	3F (9, 5)
4F	(3, 5)	$3a	ladder UP	5F (3, 5)
4F	(9, 7)	$3a	ladder UP	5F (9, 7)
4F	(8, 3), (9, 3)	$28	PIT	3F (8, 3) / (9, 3)
4F	(16, 9), (17, 9)	$28	PIT	3F (16, 9) / (17, 9)
5F	(3, 5)	$31	ladder DOWN	4F (3, 5)
5F	(9, 7)	$31	ladder DOWN	4F (9, 7)
5F	(9, 15)	$3a	ladder UP	6F (9, 15)
5F	(16, 7), (17, 7)	$28	PIT	4F (16, 7) / (17, 7)
6F	(9, 15)	$31	ladder DOWN	5F (9, 15)
6F	(16, 5), (17, 5)	$28	PIT	5F (16, 5) / (17, 5)

The pit destination coordinates always match the pit's own coordinates on the floor below - the warp row on the lower floor exists purely as a landing slot and its own destination is never triggered (the landing tile is plain FLOOR).

Coord events - none on any floor.

BG events - only 5F: bg_event 3, 13, BGEVENT_ITEM, OlivineLighthouse5FHiddenHyperPotion.

Object events (trainers a bot will be forced into on the climb)

floor	const	sprite	x	y	movement	type	script label	event flag
1F	-	SPRITE_SAILOR	8	2	STANDING_DOWN	OBJECTTYPE_SCRIPT	OlivineLighthouse1FSailorScript	-1
1F	-	SPRITE_POKEFAN_F	16	9	WALK_UP_DOWN (0,2)	OBJECTTYPE_SCRIPT	OlivineLighthouse1FPokefanFScript	-1
2F	-	SPRITE_SAILOR	9	3	STANDING_RIGHT	OBJECTTYPE_TRAINER, sight 3	TrainerSailorHuey	-1
2F	-	SPRITE_GENTLEMAN	17	8	STANDING_LEFT	OBJECTTYPE_TRAINER, sight 3	TrainerGentlemanAlfred	-1
3F	-	SPRITE_SAILOR	9	2	STANDING_DOWN	OBJECTTYPE_TRAINER, sight 1	TrainerSailorTerrell	-1
3F	-	SPRITE_GENTLEMAN	13	5	STANDING_RIGHT	OBJECTTYPE_TRAINER, sight 4	TrainerGentlemanPreston	-1
3F	-	SPRITE_YOUNGSTER	3	9	STANDING_UP	OBJECTTYPE_TRAINER, sight 3	TrainerBirdKeeperTheo	-1
3F	-	SPRITE_POKE_BALL	8	2	STILL	OBJECTTYPE_ITEMBALL	OlivineLighthouse3FEther	EVENT_OLIVINE_LIGHTHOUSE_3F_ETHER
4F	-	SPRITE_SAILOR	7	14	STANDING_LEFT	OBJECTTYPE_TRAINER, sight 3	TrainerSailorKent	-1
4F	-	SPRITE_LASS	11	2	STANDING_DOWN	OBJECTTYPE_TRAINER, sight 1	TrainerLassConnie	-1
5F	-	SPRITE_SAILOR	8	11	SPINRANDOM_FAST	OBJECTTYPE_TRAINER, sight 3	TrainerSailorErnest	-1
5F	-	SPRITE_YOUNGSTER	8	3	STANDING_LEFT	OBJECTTYPE_TRAINER, sight 4	TrainerBirdKeeperDenis	-1
5F	-	SPRITE_POKE_BALL	15	12	STILL	OBJECTTYPE_ITEMBALL	OlivineLighthouse5FRareCandy	EVENT_OLIVINE_LIGHTHOUSE_5F_RARE_CANDY
5F	-	SPRITE_POKE_BALL	6	15	STILL	OBJECTTYPE_ITEMBALL	OlivineLighthouse5FGreatBall	EVENT_OLIVINE_LIGHTHOUSE_5F_GREAT_BALL
5F	-	SPRITE_POKE_BALL	2	13	STILL	OBJECTTYPE_ITEMBALL	OlivineLighthouse5FTMSwagger	EVENT_OLIVINE_LIGHTHOUSE_5F_TM_SWAGGER

TrainerLassConnie at 4F (11, 2) is "that one lass". The pit at 4F (8, 3) / (9, 3) is the tile pair immediately left-and-below her, which matches the walkthrough's "falling to the left of that one lass".

6F object events (def_object_events, maps/OlivineLighthouse6F.asm:270-273)

const	sprite	x	y	movement	type	script label	event flag
OLIVINELIGHTHOUSE6F_JASMINE	SPRITE_JASMINE	8	8	STANDING_DOWN	OBJECTTYPE_SCRIPT	OlivineLighthouseJasmine	EVENT_OLIVINE_LIGHTHOUSE_JASMINE (0x6d2)
OLIVINELIGHTHOUSE6F_MONSTER	SPRITE_MONSTER	9	8	STANDING_DOWN	OBJECTTYPE_SCRIPT	OlivineLighthouseAmphy	-1
OLIVINELIGHTHOUSE6F_POKE_BALL	SPRITE_POKE_BALL	3	4	STILL	OBJECTTYPE_ITEMBALL	OlivineLighthouse6FSuperPotion (itemball SUPER_POTION)	EVENT_OLIVINE_LIGHTHOUSE_6F_SUPER_POTION (0x668)

Scripts of interest

• OlivineLighthouseJasmine (44:6ccd, maps/OlivineLighthouse6F.asm:11):
  1. faceplayer / opentext
  2. checkitem SECRETPOTION -> .BroughtSecretpotion (44:6ce7). Without the potion it falls into the EVENT_JASMINE_EXPLAINED_AMPHYS_SICKNESS (0x37) branch and just repeats the request.
  3. .BroughtSecretpotion: writetext JasmineCureAmphyText, yesorno. iffalse .Refused - answering No leaves everything unset and the gym stays empty, so a bot must answer Yes.
  4. takeitem SECRETPOTION, a long cutscene (turnobject, playmusic MUSIC_HEAL, special RestartMapMusic, cry AMPHAROS, special FadeOutToWhite / FadeInFromWhite).
  5. setevent EVENT_JASMINE_RETURNED_TO_GYM (0x20) and clearevent EVENT_OLIVINE_GYM_JASMINE (0x6d3) - this pair is the entire gate on the gym.
  6. readvar VAR_FACING picks one of three exit movements (OlivineLighthouseJasmineLeaves{Up,Down,Right}Movement) then disappear OLIVINELIGHTHOUSE6F_JASMINE.
• OlivineLighthouseAmphy: cosmetic; branches on EVENT_JASMINE_RETURNED_TO_GYM for the healthy cry.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_JASMINE_RETURNED_TO_GYM (0x20)	constants/event_flags.asm:41	set by OlivineLighthouseJasmine; read by OlivineGymGuideScript and maps/EcruteakCity.asm:47	the section's real progress bit
EVENT_OLIVINE_GYM_JASMINE (0x6d3)	constants/event_flags.asm:1141	set at new game by InitializeEventsScript (engine/events/std_scripts.asm:511), cleared by OlivineLighthouseJasmine	clear = Jasmine is standing in her gym
EVENT_OLIVINE_LIGHTHOUSE_JASMINE (0x6d2)	constants/event_flags.asm:1140	disappear at the end of the cure	set = she has left the lighthouse
EVENT_JASMINE_EXPLAINED_AMPHYS_SICKNESS (0x37)	constants/event_flags.asm:64	OlivineLighthouseJasmine	first-visit text latch only

Items - SECRETPOTION is consumed (takeitem SECRETPOTION). Nothing is given.

Wild encounters - none on any lighthouse floor (indoor DUNGEON, no table).

---

MAP_OLIVINE_GYM

• Script: maps/OlivineGym.asm (51:410e OlivineGym_MapScripts, 51:4507 OlivineGym_MapEvents)
• Blocks: maps/OlivineGym.blk (2b:7c7b OlivineGym_Blocks)
• Header: data/maps/maps.asm:51 -> map OlivineGym, TILESET_CHAMPIONS_ROOM, INDOOR, LANDMARK_OLIVINE_CITY, MUSIC_GYM, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:40 -> map_const OLIVINE_GYM, 5, 8 = 10 x 16 tiles (group 1, id 2)
• Attributes: data/maps/attributes.asm:473 -> map_attributes OlivineGym, OLIVINE_GYM, $00, no connections
• def_scene_scripts and def_callbacks are both empty - no scene variable, no map callbacks.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	15	OLIVINE_CITY	2
2	5	15	OLIVINE_CITY	2

Coord events (def_coord_events) - none. There is no trip-wire in this gym; every interaction is a faceplayer talk.

BG events (def_bg_events)

x	y	type	script/item
3	13	BGEVENT_READ	OlivineGymStatue
6	13	BGEVENT_READ	OlivineGymStatue

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
OLIVINEGYM_JASMINE	SPRITE_JASMINE	5	3	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT, PAL_NPC_RED	OlivineGymJasmineScript	EVENT_OLIVINE_GYM_JASMINE
OLIVINEGYM_GYM_GUIDE	SPRITE_GYM_GUIDE	7	13	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT, PAL_NPC_RED	OlivineGymGuideScript	-1

The walkthrough's "there are no apprentices of any kind" is literally true in the asm: the object table has exactly two rows and neither is OBJECTTYPE_TRAINER.

Walkable shape (decoded from maps/OlivineGym.blk against data/tilesets/champions_room_collision.asm, . = FLOOR, # = WALL, W = WARP_CARPET_DOWN, U = UP_WALL; x across 0..9, y down 0..15):

 y0  # # # # # # # # # #
 y1  # # # # # # # # # #
 y2  # # # U U U U # # #
 y3  # # # . . . . # # #
 y4  # # # . . . . # # #
 y5  # # # # . . # # # #
 y6  # # # # . . # # # #
 y7  # # # . . . . # # #
 y8  # # . . . . . . # #
 y9  # # # # . . # # # #
y10  # # # . . . . # # #
y11  # # # . . . . # # #
y12  # # . # . . # . # #
y13  # # . # . . # . # #
y14  # . . . . . . . . #
y15  # . . . W W . . . #

Columns x=4 and x=5 are floor from y=14 straight up to y=3, so a bot can enter at (4, 15) or (5, 15) and hold UP to reach Jasmine at (5, 3) with no turns. The two statues are the wall tiles at (3, 13) and (6, 13); the gym guide stands at (7, 13), reachable from (7, 14).

Scripts of interest

• OlivineGymJasmineScript (51:4110, maps/OlivineGym.asm:10). Opcode-by-opcode:

  faceplayer / opentext
  checkevent EVENT_BEAT_JASMINE -> iftrue .FightDone
  writetext Jasmine_SteelTypeIntro / waitbutton / closetext
  winlosstext Jasmine_BetterTrainer, 0
  loadtrainer JASMINE, JASMINE1
  startbattle
  reloadmapafterbattle
  setevent EVENT_BEAT_JASMINE
  opentext / writetext Text_ReceivedMineralBadge
  playsound SFX_GET_BADGE / waitsfx
  setflag ENGINE_MINERALBADGE
  readvar VAR_BADGES
  scall OlivineGymActivateRockets
  .FightDone:
  checkevent EVENT_GOT_TM23_IRON_TAIL -> iftrue .GotIronTail
  writetext Jasmine_BadgeSpeech / promptbutton
  verbosegiveitem TM_IRON_TAIL
  iffalse .NoRoomForIronTail
  setevent EVENT_GOT_TM23_IRON_TAIL
  writetext Jasmine_IronTailSpeech / waitbutton / closetext / end
  

  Two bot-relevant consequences: (a) winlosstext ..., 0 means there is no loss-warp script, losing just blacks you out normally; (b) if the bag has no room in the TM pocket, verbosegiveitem returns false and EVENT_GOT_TM23_IRON_TAIL is not set - re-talking to Jasmine retries the give from .FightDone. Keep TM room free.

• OlivineGymActivateRockets (51:4159): the scalled tail, dispatching on the readvar VAR_BADGES value that was just pushed:

  ifequal 7, .RadioTowerRockets   -> jumpstd RadioTowerRocketsScript
  ifequal 6, .GoldenrodRockets    -> jumpstd GoldenrodRocketsScript
  end
  

  VAR_BADGES is CountSetBits over the two wBadges bytes (engine/overworld/variables.asm:80-86), so it counts Johto and Kanto badges. Since setflag ENGINE_MINERALBADGE runs first, MINERALBADGE is included in the count. On the walkthrough's route (Zephyr, Hive, Plain, Fog, Storm, Mineral) the count is 6 and GoldenrodRocketsScript fires: clearevent EVENT_GOLDENROD_CITY_ROCKET_TAKEOVER (engine/events/std_scripts.asm:251-253), which makes the two Rocket grunts appear in Goldenrod City at (28, 20) and (8, 15) (maps/GoldenrodCity.asm:376-377). Every gym carries the same scall (maps/VioletGym.asm:31, maps/MahoganyGym.asm:34, ...), so whichever gym hands you badge 6 is the one that arms the Rockets - beating Jasmine before Chuck simply moves the trigger to Chuck.

• OlivineGymGuideScript (51:4168): three-way on EVENT_BEAT_JASMINE, then EVENT_JASMINE_RETURNED_TO_GYM. Text only, no flags written.

• OlivineGymStatue (51:418a): checkflag ENGINE_MINERALBADGE, jumpstd GymStatue1Script before, gettrainername STRING_BUFFER_4, JASMINE, JASMINE1 + jumpstd GymStatue2Script after.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_OLIVINE_GYM_JASMINE (0x6d3)	constants/event_flags.asm:1141	set by InitializeEventsScript; cleared by OlivineLighthouseJasmine	precondition: while set, the gym is empty and unbeatable
EVENT_BEAT_JASMINE (0x4c1)	constants/event_flags.asm:710	set by OlivineGymJasmineScript	postcondition of the battle
ENGINE_MINERALBADGE (engine flag id 30)	constants/engine_flags.asm:42, data/events/engine_flags.asm:50 (engine_flag wJohtoBadges, MINERALBADGE)	setflag here, checkflag in OlivineGymStatue	the badge bit; MINERALBADGE bit index in wJohtoBadges is constants/ram_constants.asm:256
EVENT_GOT_TM23_IRON_TAIL (0x0d)	constants/event_flags.asm:19	OlivineGymJasmineScript	one-time TM guard
EVENT_JASMINE_RETURNED_TO_GYM (0x20)	constants/event_flags.asm:41	read by OlivineGymGuideScript	flavour only inside the gym
EVENT_GOLDENROD_CITY_ROCKET_TAKEOVER (0x6cd)	constants/event_flags.asm	cleared by GoldenrodRocketsScript	side effect of reaching 6 badges

Items

item	how obtained	source (label / bg_event / hidden)	one-time flag
TM_IRON_TAIL (TM23, item id $d6, constants/item_constants.asm:243)	verbosegiveitem after the battle	OlivineGymJasmineScript	EVENT_GOT_TM23_IRON_TAIL
3500 prize money	battle reward	see below	-

Prize money check: TrainerClassAttributes for Jasmine (data/trainers/attributes.asm, the sixth gym-leader block) is db HYPER_POTION, NO_ITEM ; items and db 25 ; base reward. ComputeTrainerReward (engine/battle/read_trainer_party.asm:300-317) sets wBattleReward = 25 * wCurPartyLevel = 25 * 35 = 875, and the payout loop in engine/battle/core.asm:2340-2360 adds wBattleReward four times (ld c, 4). 875 x 4 = 3500, which matches the walkthrough exactly. (Note Jasmine's AI holds a HYPER_POTION.)

Badge effect check: BadgeStatBoosts (engine/battle/core.asm:6533-6588) - the comment block states "MineralBadge: Defense", and the code deliberately swaps the PlainBadge and MineralBadge bits before the every-other-badge walk, boosting the stat at wBattleMonDefense by 1/8 (BoostStat). Separately data/types/badge_type_boosts.asm:7 maps MINERALBADGE to STEEL for the type-matching trainer-card/boost table. So the walkthrough's "raises your Pokemon's defense slightly" is correct.

Trainers

const	class	id	party (data/trainers/parties.asm label)	script label	rematch/phone
JASMINE / JASMINE1	JASMINE (trainer class 6, constants/trainer_constants.asm:42-43)	1	JasmineGroup (0e:5a42, data/trainers/parties.asm:53)	OlivineGymJasmineScript	none (gym leaders have no phone row)

JasmineGroup, verbatim (TRAINERTYPE_MOVES):

db "JASMINE@", TRAINERTYPE_MOVES
db 30, MAGNEMITE,  THUNDERBOLT, SUPERSONIC, SONICBOOM, THUNDER_WAVE
db 30, MAGNEMITE,  THUNDERBOLT, SUPERSONIC, SONICBOOM, THUNDER_WAVE
db 35, STEELIX,    SCREECH, SUNNY_DAY, ROCK_THROW, IRON_TAIL
db -1 ; end

EXP check against the walkthrough's numbers: trainer EXP is base * level / 7 * 3 / 2. Magnemite base exp 89 (data/pokemon/base_stats/magnemite.asm:8) -> 89*30/7 = 381, *3/2 = 571. Steelix base exp 196 (data/pokemon/base_stats/steelix.asm:8) -> 196*35/7 = 980, *3/2 = 1470. Both match.

Wild encounters - none (INDOOR).

---

3. Blockers and gates

Gate	Enforced by (file:label)	Requirement	Unlock condition
Jasmine is not in her gym	maps/OlivineGym.asm:212 object row, event flag EVENT_OLIVINE_GYM_JASMINE; visibility semantics in engine/overworld/scripting.asm:879-898	flag must be clear	clearevent EVENT_OLIVINE_GYM_JASMINE at maps/OlivineLighthouse6F.asm:69
Jasmine will not leave the lighthouse	maps/OlivineLighthouse6F.asm:14 checkitem SECRETPOTION	SECRETPOTION in the bag (from the Cianwood Pharmacy, section 8)	hand it over and answer Yes to JasmineCureAmphyText (yesorno at line 29; iffalse .Refused aborts the whole scene)
Cannot Fly to Olivine / Goldenrod	engine/events/overworld.asm:544-547 (FlyFunction.TryFly -> ld de, ENGINE_STORMBADGE / call CheckBadge), mirrored in the port at src/world/gen2/FieldMoves.lua:107 (FLY = "STORM"), plus ENGINE_FLYPOINT_OLIVINE (id 70) / ENGINE_FLYPOINT_GOLDENROD (id 69) set by each town's MAPCALLBACK_NEWMAP (maps/OlivineCity.asm:22, maps/GoldenrodCity.asm:24)	ENGINE_STORMBADGE + having visited the town on foot	both already true entering this section
Haircut unavailable	OlderHaircutBrotherScript readvar VAR_WEEKDAY + GoldenrodUndergroundCheckDayOfWeekCallback	in-game weekday must be TUE/THU/SAT for the 500 brother	wait for the day, or use the younger brother SUN/WED/FRI for 300
Second haircut same day	checkflag ENGINE_GOLDENROD_UNDERGROUND_GOT_HAIRCUT (engine flag 89)	flag clear	daily reset
4F of the lighthouse is a dead end from the (13, 3) ladder	geometry: 4F pit at (8, 3)/(9, 3), block $28 in maps/OlivineLighthouse4F.blk, warps 7/8	must step into the pit and re-climb via 3F warp 3 at (9, 5)	no flag, purely navigational
No TM pocket room	verbosegiveitem TM_IRON_TAIL -> iffalse .NoRoomForIronTail (maps/OlivineGym.asm:35-36)	free TM slot	drop a TM and re-talk to Jasmine

Nothing in this section requires CUT, SURF, STRENGTH, WHIRLPOOL, WATERFALL or FLASH.

---

4. Bot checklist

Optional Eevee-happiness detour (steps 1-5) can be skipped entirely.

1. Fly to SPAWN_GOLDENROD. Precondition: ENGINE_STORMBADGE set and ENGINE_FLYPOINT_GOLDENROD (id 69) set. Postcondition: on GOLDENROD_CITY.
2. GOLDENROD_CITY: walk to (11, 29), step onto warp 15. Postcondition: on GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES at warp 5 (4, 29).
3. GOLDENROD_UNDERGROUND_SWITCH_ROOM_ENTRANCES: walk to (5, 25), step onto warp 4. Postcondition: on GOLDENROD_UNDERGROUND at warp 2 (3, 34).
4. GOLDENROD_UNDERGROUND: precondition VAR_WEEKDAY in {TUESDAY, THURSDAY, SATURDAY} and ENGINE_GOLDENROD_UNDERGROUND_GOT_HAIRCUT clear and money >= 500. Walk to (6, 14) and face RIGHT (the brother stands at (7, 14) facing left); talk. Answer Yes, pick the Eevee. Postcondition: ENGINE_GOLDENROD_UNDERGROUND_GOT_HAIRCUT set, money -500, Eevee happiness +1/+3/+5.
5. Retrace warps out (warp 2 at (3, 34) -> switch-room warp 5/6 at (4, 29)/(5, 29) -> GOLDENROD_CITY).
6. Fly to SPAWN_OLIVINE. Precondition: ENGINE_FLYPOINT_OLIVINE (id 70). Postcondition: on OLIVINE_CITY.
7. OLIVINE_CITY: walk to (29, 27), step onto warp 9. Postcondition: on OLIVINE_LIGHTHOUSE_1F at warp 1 (10, 17).
8. 1F: walk to (3, 11), step on ladder-up. -> 2F (3, 11).
9. 2F: walk to (5, 3), ladder-up. -> 3F (5, 3). (Sailor Huey (9, 3) and Gentleman Alfred (17, 8) are already beaten; their EVENT_BEAT_* flags guard re-battle.)
10. 3F: walk to (13, 3), ladder-up. -> 4F (13, 3).
11. 4F: walk to the pit at (8, 3) or (9, 3) - "left of Lass Connie at (11, 2)". Step in. -> 3F (8, 3)/(9, 3).
12. 3F: walk to (9, 5), ladder-up. -> 4F (9, 5).
13. 4F: walk to (9, 7), ladder-up. -> 5F (9, 7). (Alternative: 4F (3, 5) -> 5F (3, 5).)
14. 5F: walk to (9, 15), ladder-up. -> 6F (9, 15). Confirm arrival by MUSIC_VIOLET_CITY playing (6F is the only lighthouse floor with it).
15. 6F: precondition SECRETPOTION in bag and EVENT_OLIVINE_LIGHTHOUSE_JASMINE clear. Walk to (8, 9) and face UP (Jasmine at (8, 8) faces down) and talk. Answer Yes to JasmineCureAmphyText. Sit through ~120 frames of cutscene (pause 60, pause 15, several pause 10). Postcondition: SECRETPOTION removed, EVENT_JASMINE_RETURNED_TO_GYM set, EVENT_OLIVINE_GYM_JASMINE cleared, EVENT_OLIVINE_LIGHTHOUSE_JASMINE set.
16. Descend: 6F pit at (16, 5)/(17, 5) -> 5F; 5F pit at (16, 7)/(17, 7) -> 4F; 4F pit at (16, 9)/(17, 9) -> 3F; 3F pit at (16, 11)/(17, 11) -> 2F; 2F pit at (16, 13)/(17, 13) -> 1F. Then 1F (10, 17)/(11, 17) facing DOWN -> OLIVINE_CITY warp 9 at (29, 27).
17. OLIVINE_CITY: (optional) heal at the Pokecenter, warp 1 at (13, 21). Save before the gym.
18. OLIVINE_CITY: walk to (10, 11), step onto warp 2. Postcondition: on OLIVINE_GYM at warp 1 (4, 15).
19. OLIVINE_GYM: (optional) talk to the guide by walking to (7, 14) and facing UP.
20. OLIVINE_GYM: hold UP along x=5 from (5, 14) to (5, 4), face UP, talk to Jasmine at (5, 3). Precondition: EVENT_OLIVINE_GYM_JASMINE clear, EVENT_BEAT_JASMINE clear, a free TM slot. Battle loadtrainer JASMINE, JASMINE1.
21. Win. Postconditions in order: EVENT_BEAT_JASMINE set -> ENGINE_MINERALBADGE set -> money +3500 -> VAR_BADGES re-read -> if it equals 6, EVENT_GOLDENROD_CITY_ROCKET_TAKEOVER cleared (Rockets appear in Goldenrod) -> verbosegiveitem TM_IRON_TAIL -> EVENT_GOT_TM23_IRON_TAIL set.
22. Leave via (4, 15)/(5, 15) facing DOWN -> OLIVINE_CITY warp 2 (10, 11).

Battle notes for the driver: lead a Fire or Fighting attacker; both Magnemite carry THUNDER_WAVE (paralysis risk) and SONICBOOM (fixed 20 damage, ignores type - it will connect on a Ground type); Steelix has IRON_TAIL and SUNNY_DAY (which boosts your own Fire moves too).

---

5. Port coverage

Beat	Port file	Status
Map headers, blocks, warps, coord/bg/object events for all of these maps	src/import/RomExtractorGen2.lua (readItemBall ~line 2875, object/trainer struct decode ~line 2961)	implemented (data-driven from ROM, no hand-ported Olivine map)
Script opcodes used by OlivineGymJasmineScript (faceplayer, checkevent, winlosstext, loadtrainer, startbattle, reloadmapafterbattle, setflag, readvar, scall, verbosegiveitem, jumpstd, gettrainername)	src/script/gen2/Vm.lua (faceplayer L164, gettrainername L407, verbosegiveitem L490, jumpstd L742, loadtrainer L806, winlosstext L918); opcode table src/script/gen2/Opcodes.lua	implemented
VAR_BADGES (CountSetBits over Johto+Kanto)	src/world/gen2/World.lua:1240-1245	implemented
Fly gate + flypoint engine flags	src/world/gen2/FieldMoves.lua:103-130, FLYPOINTS L340-368 (OLIVINE flag 70, GOLDENROD flag 69)	implemented
Pit / warp-carpet collision (the lighthouse climb)	src/world/gen2/Permissions.lua:162-180 (COLL_PIT 0x60 / 0x68 and the $7x warp nybble; carpet direction table)	implemented
Haircut brothers (weighted roll + happiness deltas)	src/script/gen2/Specials.lua:1577-1615 (HAIRCUT_TABLES), src/core/gen2/Happiness.lua:79-84	implemented
Trainer prize money incl. the x4 payout loop	src/battle/gen2/Prize.lua (header comment cites ld c, 4)	implemented
Gym-leader battle music for JASMINE	src/battle/gen2/BattleMusic.lua:25, src/battle/gen2/Battle.lua:86	implemented
Eevee -> Espeon/Umbreon (EVOLVE_HAPPINESS, HAPPINESS_TO_EVOLVE 220, TR_MORNDAY/TR_NITE)	src/core/gen2/Evolution.lua:40-52,143	implemented
Trainer card badge display	src/ui/gen2/TrainerCard.lua; leader palette list at src/import/RomExtractorGen2.lua:4982	implemented
BadgeStatBoosts - the MINERALBADGE +1/8 Defense (and the PlainBadge/MineralBadge bit swap)	nothing found. grep -i badge src/battle/gen2/ returns no hits; the only badge-boost code in the repo is Gen 1's (src/battle/Damage.lua:24, src/battle/BattleState.lua:439)	missing
BadgeTypeBoosts (data/types/badge_type_boosts.asm, MINERALBADGE -> STEEL)	no hits for BadgeTypeBoosts anywhere in src/	missing
A driver that walks the lighthouse or fights a gym leader	tests/drivers/gold_*.lua - gold_trainer_smoke.lua and gold_battle_smoke.lua exist but neither names Olivine or Jasmine	missing (no section-9 driver)

---

6. Unresolved / verify by hand

• "Climb up the Olivine Lighthouse in the EXACT same way you came up." The ladder/pit graph in section 2 is fully decoded from the .blk files and data/tilesets/lighthouse_collision.asm, but I did not flood-fill each floor to prove the specific walking path between a ladder and the next pit. Steps 8-14 of the checklist are the geometrically obvious route (and the pit at 4F (8, 3)/(9, 3) really is left of Lass Connie at (11, 2)), but the intermediate tile-by-tile route on 3F, 4F and 5F should be confirmed in-game before a driver hard-codes it.
• "Talk to the man who is running the second/middle shop." The asm has four merchant objects in one column at x=7: gramps y=11, older brother y=14, younger brother y=15, granny y=21, and GoldenrodUndergroundCheckDayOfWeekCallback hides most of them on any given day. "Middle" is therefore day-dependent; the unambiguous identifier is the 500 price (GOLDENRODUNDERGROUND_OLDER_HAIRCUT_PRICE), i.e. the older brother at (7, 14), available TUE/THU/SAT only. The walkthrough does not mention the weekday restriction at all.
• "Eevee's happiness meter should get a nice boost." The older brother's roll is +1 (30%), +3 (50%) or +5 (20%) at happiness < 200. The younger brother's top roll is +10. The walkthrough's implied "500 is the better option" is not supported by data/events/happiness_probabilities.asm / data/events/happiness_changes.asm.
• "Say Yes to the fact that Ampharos will be cured by the medicine." Confirmed as a hard requirement (yesorno / iffalse .Refused at maps/OlivineLighthouse6F.asm:29-30), but note the refusal path is recoverable: it sets nothing, so the player can simply talk again.
• EXP values (571 / 1470) are reproduced by the standard trainer formula from the base-exp bytes I read, but I did not open the EXP-award routine itself to confirm the *3/2 trainer multiplier in this disassembly; treat those two numbers as arithmetic agreement rather than a code citation.
• data/trainers/attributes.asm Jasmine row: the file has no per-class labels, only ordered comment headers. I identified Jasmine's row by the ; Jasmine comment (sixth block, db 25 ; base reward, db HYPER_POTION, NO_ITEM). If that comment ever drifts from the class order in constants/trainer_constants.asm, the 3500 derivation drifts with it.
• The walkthrough's "you can go to the Lake of Rage first" branch is out of scope here; nothing in the Olivine Gym asm checks for it.