Files
alttpr-baserom/tablets.asm
aerinon 2a789b04e4 Merge remote-tracking branch 'baserom/master' into MergeDecompression
# Conflicts:
#	LTTP_RND_GeneralBugfixes.asm
#	bookofmudora.asm
#	build.bat
#	catfish.asm
#	compasses.asm
#	contrib.asm
#	darkworldspawn.asm
#	entrances.asm
#	events.asm
#	floodgatesoftlock.asm
#	flute.asm
#	framehook.asm
#	goalitem.asm
#	halfmagicbat.asm
#	heartpieces.asm
#	hooks.asm
#	inventory.asm
#	invertedmaps.asm
#	itemtext_lower.asm
#	lampmantlecone.asm
#	mantle.asm
#	msu.asm
#	music.asm
#	newhud.asm
#	newitems.asm
#	pendantcrystalhud.asm
#	ram.asm
#	rngfixes.asm
#	roomloading.asm
#	shopkeeper.asm
#	stats.asm
#	stats/credits.asm
#	stats/creditsnew.asm
#	stats/statConfig.asm
#	tables.asm
#	tablets.asm
#	utilities.asm
#	zoraking.asm
2023-08-23 13:02:39 -06:00

106 lines
3.6 KiB
NASM

;================================================================================
; Randomize Tablets
;--------------------------------------------------------------------------------
ItemSet_EtherTablet:
PHA : LDA.l NpcFlags+1 : ORA.b #$01 : STA.l NpcFlags+1 : PLA
RTS
;--------------------------------------------------------------------------------
ItemSet_BombosTablet:
PHA : LDA.l NpcFlags+1 : ORA.b #$02 : STA.l NpcFlags+1 : PLA
RTS
;--------------------------------------------------------------------------------
ItemCheck_EtherTablet:
LDA.l NpcFlags+1 : AND.b #$01
RTL
;--------------------------------------------------------------------------------
ItemCheck_BombosTablet:
LDA.l NpcFlags+1 : AND.b #$02
RTL
;--------------------------------------------------------------------------------
SetTabletItemFlag:
PHA
LDA.b OverworldIndex : CMP.b #$03 : BEQ .ether ; if we're on the map where ether is, we're the ether tablet
.bombos
JSR ItemSet_BombosTablet : BRA .done
.ether
JSR ItemSet_EtherTablet
.done
PLA
RTS
;--------------------------------------------------------------------------------
SpawnTabletItem:
JSL HeartPieceGetPlayer : STA.l !MULTIWORLD_SPRITEITEM_PLAYER_ID
JSL.l LoadOutdoorValue
JSL.l ResolveLootIDLong
PHA
LDA.b #$EB : STA.l MiniGameTime
JSL Sprite_SpawnDynamically
PLA
STA.w SpriteID,Y
TYX
JSL.l PrepDynamicTile_loot_resolved
LDA.b LinkPosX : STA.w SpritePosXLow, Y
LDA.b LinkPosX+1 : STA.w SpritePosXHigh, Y
LDA.b LinkPosY : STA.w SpritePosYLow, Y
LDA.b LinkPosY+1 : STA.w SpritePosYHigh, Y
LDA.b #$00 : STA.w SpriteLayer, Y
LDA.b #$7F : STA.w SpriteZCoord, Y ; spawn WAY up high
RTL
;--------------------------------------------------------------------------------
MaybeUnlockTabletAnimation:
PHA : PHP
JSL.l IsMedallion : BCC +
JSR SetTabletItemFlag
STZ.w MedallionFlag ; disable falling-medallion mode
STZ.w ForceSwordUp ; release link from item-up pose
LDA.b #$00 : STA.b LinkState ; set link to ground state
REP #$20 ; set 16-bit accumulator
LDA.b OverworldIndex : CMP.w #$0030 : BNE ++ ; Desert
SEP #$20 ; set 8-bit accumulator
LDA.b #$02 : STA.b LinkDirection ; face link forward
LDA.b #$3C : STA.b $46 ; lock link for 60f
++
SEP #$20 ; set 8-bit accumulator
+
PLP : PLA
RTL
;--------------------------------------------------------------------------------
IsMedallion:
REP #$20 ; set 16-bit accumulator
LDA.b OverworldIndex
CMP.w #$03 : BNE + ; Death Mountain
LDA.b LinkPosX : CMP.w #1890 : !BGE ++
SEC
BRA .done
++
BRA .false
+ CMP.w #$30 : BNE + ; Desert
LDA.b LinkPosX : CMP.w #512 : !BLT ++
SEC
BRA .done
++
+
.false
CLC
.done
SEP #$20 ; set 8-bit accumulator
RTL
;--------------------------------------------------------------------------------
LoadNarrowObject:
LDA.l SpriteProperties_standing_width, X : STA.b ($92), Y ; AddReceiveItem.wide_item_flag?
RTL
;--------------------------------------------------------------------------------
CheckTabletItem:
;--------------------------------------------------------------------------------
; Zero flag set = Item not collected
; Zero flag clear = Item collected
;--------------------------------------------------------------------------------
JSL.l IsMedallion : BCS .tablet
LDA.l OverworldEventDataWRAM, X : AND.b #$40 ; What we wrote over
RTL
.tablet
TDC
RTL