Files
alttpr-baserom/boots.asm
2024-12-13 16:52:20 -06:00

96 lines
3.6 KiB
NASM

;================================================================================
; Boots State Modifier
;--------------------------------------------------------------------------------
ModifyBoots:
PHA
LDA.l BootsModifier : CMP.b #$01 : BNE +
PLA : AND.l AbilityFlags : ORA.b #$04 : RTL ; yes boots
+ : CMP.b #$02 : BNE +
PLA : AND.l AbilityFlags : AND.b #$FB : RTL ; no boots
+ : LDA.l FakeBoots : CMP.b #$01 : BNE +
LDA.b LinkSlipping : BEQ ++ : LDA.b PitTileActField : BNE + ; hover check
++ : PLA : AND.l AbilityFlags : ORA.b #$04 : RTL ; yes boots, not hovering
+
PLA
AND.l AbilityFlags ; regular boots
RTL
;--------------------------------------------------------------------------------
AddBonkTremors:
PHA
LDA.b LinkIncapacitatedTimer : BNE + ; Check for incapacitated Link
JSL IncrementBonkCounter
+
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BNE + ; Check for Boots
PLA : RTL
+
PLA
JSL AddDashTremor : JSL Player_ApplyRumbleToSprites ; things we wrote over
RTL
;--------------------------------------------------------------------------------
BonkBreakableWall:
PHX : PHP
SEP #$30 ; set 8-bit accumulator and index registers
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BNE + ; Check for Boots
PLP : PLX : LDA.w #$0000 : RTL
+
PLP : PLX
LDA.w LinkDashing : AND.w #$00FF ; things we wrote over
RTL
;--------------------------------------------------------------------------------
BonkRockPile:
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BNE + ; Check for Boots
LDA.b #$00 : RTL
+
LDA.w TileActBE : AND.b #$70 ; things we wrote over
RTL
;--------------------------------------------------------------------------------
GravestoneHook:
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BEQ .done ; Check for Boots
+
LDA.w LinkDashing : BEQ .done ; things we wrote over
JML moveGravestone
.done
JML GravestoneHook_continue
;--------------------------------------------------------------------------------
JumpDownLedge:
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BNE + ; Check for Boots
; Disarm Waterwalk
LDA.b LinkSlipping : CMP.b #$01 : BNE +
STZ.b LinkSlipping
+
LDA.b IndoorsFlag : BNE .done : LDA.b #$02 : STA.b LinkLayer ; things we wrote over
.done
RTL
;--------------------------------------------------------------------------------
BonkRecoil:
LDA.l BootsModifier : CMP.b #$01 : BEQ +
LDA.l BootsEquipment : BNE + ; Check for Boots
LDA.b #$16 : STA.b LinkRecoilZ : RTL
+
LDA.b #$24 : STA.b LinkRecoilZ ; things we wrote over
RTL
;--------------------------------------------------------------------------------
BonkRecoilStop:
LDA.l BootsModifier : CMP.b #$01 : BEQ .return
LDA.l BootsEquipment : BNE .return
LDA.b LinkState : CMP.b #$02 : BNE .return
LDA.b LinkPosZ : BMI .return : CMP.b #$09 : BCC .return
LDA.b FrameCounter : AND.b #$01 : BNE .return
REP #$20
LDA.w $0114 : CMP.w #$0020 : SEP #$20 : BNE .return
LDA.b LinkRecoilY : BEQ ++ : BMI +
DEC : BRA ++
+ INC
++ STA.b LinkRecoilY
LDA.b LinkRecoilX : BEQ ++ : BMI +
DEC : BRA ++
+ INC
++ STA.b LinkRecoilX
.return
JML LinkHop_FindArbitraryLandingSpot