dockipelago/worlds/tloz_oos/patching/asm/locations.yaml

0b/6a6c/: dwbe locations.hollyGift
0b/64cc/: dwbe locations.blainoPrize
09/660f/: dw locations.underwaterItemBelowNatzuBridge
09/6281/: dw locations.floodgateKeeperHouse
09/66c6/: dw locations.springBananaTree
09/62a3/: dw locations.goronMountainPits
0b/7332/: dwbe locations.oldManInTreehouse
0b/6418/: dwbe locations.lostWoodsPedestal
08/4ce4/: dwbe locations.syrupShop1
08/4ce0/: dwbe locations.syrupShop2
08/4ce2/: dwbe locations.syrupShop3
08/4cd6/: dwbe locations.horonShop1
08/4cd4/: dwbe locations.horonShop2
08/4cd0/: dwbe locations.horonShop3
08/4cce/: dwbe locations.memberShop1
08/4cd2/: dwbe locations.memberShop2
08/4cd8/: dwbe locations.memberShop3
08/4cea/: dwbe locations.advanceShop1
08/4cec/: dwbe locations.advanceShop2
08/4cee/: dwbe locations.advanceShop3
0b/4fc5/: dwbe locations.towerOfWinter
0b/4fb9/: dwbe locations.towerOfSummer
0b/4fb5/: dwbe locations.towerOfSpring
0b/4fc1/: dwbe locations.towerOfAutumn
0b/6646/: dwbe locations.subrosianDanceHall
09/77da/: dwbe locations.subrosianMarket1
09/77e2/: dwbe locations.subrosianMarket2
09/77ee/: dwbe locations.subrosianMarket3
09/77f2/: dwbe locations.subrosianMarket4
09/77f4/: dwbe locations.subrosianMarket5
09/66b1/: dw locations.d1Basement
0b/4c0b/: dwbe locations.d4DiveSpot
09/5051/: dwbe locations.d5ArmosChest
0b/4c22/: dwbe locations.d5Basement
09/5689/: dw locations.d7ArmosPuzzle
0b/4fd5/: dwbe locations.mayorGift
0b/5c1b/: dwbe locations.goronGift
0b/5094/: dwbe locations.drLeftReward
0b/50e3/: dwbe locations.malonTrade
0b/5067/: dwbe locations.mrsRuulTrade
14/4bda/: dwbe locations.subrosianChefTrade
0b/61d3/: dwbe locations.biggoronTrade
0b/6353/: dwbe locations.ingoTrade
0b/5263/: dwbe locations.yellingOldManTrade
0b/5f41/: dwbe locations.syrupTrade
0b/521a/: dwbe locations.tickTockTrade
0b/63e5/: dwbe locations.guruguruTrade

# Seed trees (ID only as they can only receive seed items)
0d/68fb/: db locations.horonVillageSeedTree.id - $20
0d/68fe/: db locations.woodsOfWinterSeedTree.id - $20
0d/6901/: db locations.northHoronSeedTree.id - $20
0d/6904/: db locations.spoolSwampSeedTree.id - $20
0d/6907/: db locations.sunkenCitySeedTree.id - $20
0d/690a/: db locations.tarmRuinsSeedTree.id - $20

# D0 end chest
0a/7b90/: db locations.d0SwordChest.id
0a/7b92/: db locations.d0SwordChest.subid

# Temple of Seasons
15/70ce/: db locations.templeOfSeasons.id
15/70cc/: db locations.templeOfSeasons.subid

# Samasa Desert Pit
09/648c/: dw locations.samasaDesertPit
0b/60b1/: db locations.samasaDesertPit.id

# Maku Tree Gift
15/613a/: db locations.makuTree.id
15/613d/: db locations.makuTree.subid
09/7e16/: db locations.makuTree.id
09/7e19/: db locations.makuTree.subid

# Diving spot outside D4
0b/734e/: dwbe locations.divingSpotOutsideD4
0b/7358/: dwbe locations.divingSpotOutsideD4

##### SUBROSIA SEASIDE ########################################

# Note for the future, INTERAC_DATING_ROSA_EVENT subid 2 is an interaction that follows the player until they leave the beach
# (warp (can't find why) or walk to a room <60) and creates the treasure if the right tile is dug

08/62a5/: |  # Replace "checkGlobalFlag" on GLOBALFLAG_STAR_ORE_FOUND
    call getThisRoomFlags
    bit 5,a

08/62fd/checkGotBeachCheckInThisRoom: |  # Replace "call checkTreasureObtained"
    call getThisRoomFlags
    bit 5,a
    db $20  ; Replace "jr c" by "jr nz"

# Star Ore item doesn't get a subid in vanilla game, we need to optimize that procedure to be able to set one
08/62e3/: |
    jr z,$18
    /copy s,$08,$22e4,$06
    jr nz,$10
    push bc
    ld bc,locations.subrosiaSeaside
    call createTreasure
    pop bc

08/630f/: |
    ld hl,$c866
    set 5,(hl)


##### BOMB FLOWER ############################################

09/4397/: call objectSetInvisible
09/43be/: |
    ld bc,locations.bombFlower
    jp spawnTreasureOnLink

# Remove the problematic check where Bomb Flower interaction is removed if you own
# Bomb Flower (even in vanilla, this seems useless since the "GOT_ITEM" room flag
# is checked first...)
09/435c/: |
    nop
    nop
    nop
    nop
    nop

##### GOLDEN BEASTS OLD MAN ####################################

# Make the golden beasts old man give a treasure instead of a ring
15/6ad9/: |
    ld bc,locations.goldenBeastsOldMan
    jp spawnTreasureOnLink

# Change the golden beasts old man requirement (both checked value and text)
15/6acf/goldenBeastsRequirement: db option.goldenBeastsRequirement
# Change the "jr z" into a "jr nc" to allow having more beasts killed than needed
15/6ad2/: db $30


##### TREEHOUSE OLD MAN ############################################

# Change the essence requirement for treehouse old man
0a/4f8b/: db option.treehouseOldManRequirement


##### GREAT FURNACE ###############################################

# Great Furnace location usually doesn't need a subID since it gives a Hard Ore with subid 0.
# Change that to allow randomized items with nonzero subID.
15//setHardOreIds: |
    inc l
    ld (hl),locations.greatFurnace.id
    inc l
    ld (hl),locations.greatFurnace.subid
    ret
15/5b83/: call setHardOreIds

# Change the drop if you leave then come back to the room
09/66ea/: dw locations.greatFurnace

##### HARD ORE SMITHY ###############################################

# Skip "has shield" check for forging hard ore
0b/75c6/: db jumpifitemobtained,TREASURE_PUNCH

# Rework of the "subrosianSmith_giveUpgradedShield" function to handle randomized
# item and set a proper flag for client tracking
15/62a7/: |
    call getThisRoomFlags
    set 6,(hl)      ; +0x40 on room flag
    ld bc,locations.subrosianSmithyOre
    jp spawnTreasureOnLink


##### BELL SMITHY ###############################################

0a/641d/: db $00,$00,$00 ; nop instructions about wPirateBellState
0a/6422/: db $38 ; and jr c, meaning we always reforge if we have the rusty bell

# Remove the "post-endgame" discussion when no items are reforgeable (patch is changed by secret_locations.yaml)
0b/7596/: dw $7598

# The "secret checking" script space is free (from 2f611 to 2f622 included)
0b/7611/reforgeRustyBell: |
    db orroomflag,$80
    db loseitem,TREASURE_RUSTY_BELL
    db giveitem,locations.subrosianSmithyBell.id,locations.subrosianSmithyBell.subid
    dwbe $75b6
0b/75b3/: dwbe reforgeRustyBell


##### TEMPLE OF SEASONS ##############################################

# don't display normal fixed text for temple of seasons item.
15/70be/: |
    nop
    nop
    nop
# rod cutscene
15/70cf/: call giveTreasureCustom


##### MASTER DIVER'S TRADE #########################################

# Change Master Diver's condition from "has flippers" to "has obtained item"
0b/72f0/: db jumpifroomflagset,$80
# remove master's plaque from inventory to prevent confusion.
0b//script_diverGiveItem: |
    db giveitem, locations.masterPlaqueTrade.id, locations.masterPlaqueTrade.subid
    db orroomflag,$80
    db loseitem,TREASURE_MASTERS_PLAQUE
    db retscript
0b/730d/: |
    db callscript
    dw script_diverGiveItem


##### MT CUCCO PLATFORM CAVE ########################################

# mt. cucco platform cave item is normally created using ring-specific code.
# values are replaced at randomization.
09/641a/: |
    ld bc,locations.mtCuccoPlatformCave
    call createTreasure


##### LOST WOODS PEDESTAL ###########################################

# ignore sword level for lost woods pedestal.
08/7e62/: ld a,$01
# remove second sword (used to trigger spin slash) from lost woods script.
0b/641a/: db retscript
0b/6421/: db retscript

# This function is written in place of @checkTransition and does all the work
# in handling Lost Woods transitions, deciding in which room should the player
# be warped and whether related counter should be incremented.
# ----------------
# in(C): room index to warp to if sequence is complete
# in(DE): address to the transition counter
# in(HL): address to expected transitions table
# out(A): counter value
# out(Z): set if transition is complete
01/5e01/checkSpecialLostWoodsTransitions: |
    ld a,(de)
    rst 18      ; rst_addDoubleIndex
    
    ; Test the transition direction
    ld b,(hl)   ; b <- expected direction
    ld a,(wScreenTransitionDirection)
    cp b
    jr nz,@wrongTransition
    
    ; Test the transition season
    inc hl
    ld b,(hl)   ; b <- expected season
    ld a,(wRoomStateModifier)
    cp b
    jr nz,@wrongTransition
    
    ; Successful transition, increment counter
    ld a,(de)
    cp $03
    jr z,@complete
      
    ; On progress (not completion), increase counter and loop back to same room
    inc a
    ld (de),a               ; Update transition counter
    ld (wCustomBuffer),a    ; Set some nonzero value in custom buffer to schedule the loopback
    xor a                   ; Clear C flag to ensure we are testing the other sequence
    ret
    
    ; On completion, warp to room in C and reset counter
    @complete:
    xor a
    ld (de),a  ; Update transition counter
    ld a,c
    ld (wActiveRoom),a
    scf  ; Set carry flag to indicate calling function we are overriding the destination
    ret
    	
    ; Reset counter on wrong transition
    @wrongTransition:
    xor a
    ld (de),a
    ret

# This function is written in the middle of @checkSwordUpgradeTransitions letting
# some space before and after for safety
01/5e48/checkNorthTransitions: |
    ; Clear the custom buffer used to store whether we need to loopback to the same map for complex cases
    ; (e.g. we are making progress in the sequence but transitioning to the right)
    xor a
    ld (wCustomBuffer),a
    
    ld de,wLostWoodsTransitionCounter1
    ld hl,@northTransitions
    ld c,$30
    jp checkSpecialLostWoodsTransitions
 
    @northTransitions:
    /include lostWoodsMainSequence
01/5dd3/: call checkNorthTransitions

# This function is written in place of @checkSwordUpgradeTransitions
01/5e31/checkPedestalTransitions: |
    ld de,wLostWoodsTransitionCounter2
    ld hl,@pedestalTransitions
    ld c,$c9
    call checkSpecialLostWoodsTransitions
    ret c
    ; Since this is the second function being called, check if something was store inside the custom buffer
    ; to know if we need to force loopback before going back to vanilla code
    jp enforceLoopbackOnProgress
    
    @pedestalTransitions:
    /include lostWoodsPedestalSequence
01/5dd7/: call checkPedestalTransitions

# This function reads the custom buffer to enforce a loopback to the same room if some progress was made on one of the
# sequences
01//enforceLoopbackOnProgress: |
    ld a,(wCustomBuffer)
    or a
    ret z
    ld a,$40
    ld (wActiveRoom),a
    scf
    ret

##### HERO'S CAVE CHEST ############################################

# stop hero's cave chest from giving a second sword that causes a spin slash.
0a/7bb8/: jr $17


##### SUBROSIAN HIDE AND SEEK ############################################

# removes the event where the subrosians steal your feather.
11/6f8c/: db $ff

# set fixed items for the first dig and all subsequent digs
15/5dd6/: |
    ; First dig: put randomized item
    ld bc,locations.subrosiaHideAndSeek
    jr $25
    ; Subsequent digs: put 50 Ore Chunks
    ld bc,$3700
    jr $20

# allow to transition away from the screen even if the item is not dug
09/659b/: |
    xor a
    ld ($ccab),a
    jp interactionDelete


##### VASU'S GIFT ###################################################

# Vasu usually gives a ring, we need him to give a treasure instead
15/49a6/: |
    ld bc,locations.vasuGift
    jp spawnTreasureOnLink


##### LONELY GORON'S GIFT ###################################################

# Instructions to remove most of the Goron's ring box upgrade script
0b/5bff/: db $eb
0b/5c00/: db $eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb
0b/5c10/: db $eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb,$eb


##### SUBROSIAN SIGN-LOVING GUY ########################################

# Edit subrosian_checkSignsDestroyed to edit the condition
15/592c/: |
    ld a,(wTotalSignsDestroyed)
    ld b,a
    ld c,$05  # condition met text
    cp option.signGuyRequirement
    jr nc,$14
    ld c,$00  # tell requirement text
    jr $10

# Change the item given
15/595d/: |
    ld bc,locations.subrosianSignLovingGuy
    jp spawnTreasureOnLink


##### MAPLE TRADE ######################################################

# Make Maple trade a randomized item which sets a custom flag, both for client tracking purpose
# and to prevent from obtaining this item several times (@state3 of INTERACID_GHASTLY_DOLL)
0a/53cc/: |
    call interactionIncState

    # Test flag to skip treasure creation if item has already been obtained (from several Lon Lon Eggs in pool)
    ld a,(wBoughtShopItems2)
    bit 3,a
    ret nz

    # Create a treasure with a forced collect mode (using multiworld collect override)
    ld bc,locations.mapleTrade
    call spawnTreasureOnLink
    ld l,$71
    ld (hl),COLLECT_PICKUP_NOFLAG
    
    # Set a flag to tell it has been collected
    ld a,(wBoughtShopItems2)
    or $08
    ld (wBoughtShopItems2),a
    ret
# Remove timer after getting Maple trade item
0a/540e/: |
    nop
    nop
    nop
    nop


##### TALON TRADE ######################################################

# Make Talon spawn a real treasure interaction instead of a fixed trade item
15//spawnTalonTreasure: |
    call getFreeInteractionSlot
    ret nz
    ld (hl),INTERACID_TREASURE
    inc l
    ld (hl),locations.talonTrade.id
    inc l
    ld (hl),locations.talonTrade.subid
    ld l,$4b        ; y
    ld (hl),$68
    ld l,$4d        ; x
    ld (hl),$48
    ; Put a forced collect mode which overrides any kind of deduction from room ID
    ld l,$71
    ld (hl),COLLECT_PICKUP_NOFLAG
    ret
# Edit caveTalonScript to call that specific function
0b/607d/: |
    db asm15
    dw spawnTalonTreasure
    db $eb,$eb    ; do nothing (initcollisions for nothing)

# Look for an interaction of type treasure in the room, and move the first
# one found on Link for him to collect it.
15//moveTreasureOnLink: |
    push hl
    push de
    push bc

    ld hl,$d041
    @loop:
    ld a,(hl)
    cp INTERACID_TREASURE
    jr nz,@next

    @found:
    ld de,$d00b  ; wLink.yh
    call objectCopyPosition_rawAddress
    jr @end

    @next:
    ld a,h
    cp $df
    jr z,@end
    inc h
    jr @loop

    @end:
    pop bc
    pop de
    pop hl
    ret
# Edit talon_giveMushroomAfterWaking to move the treasure behind him on Link
# instead of giving an item spawned on the fly
14/49f5/: |
    db asm15
    dw moveTreasureOnLink