270 lines
4.5 KiB
NASM
270 lines
4.5 KiB
NASM
; =============================================================================
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; Bottle Net Code
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; =============================================================================
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org $07B073
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Link_CheckNewY_ButtonPress:
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org $078028
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Player_DoSfx2:
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org $1EFE33
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PlayerItem_SpawnFaerie:
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org $1EDCCF
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PlayerItem_ReleaseBee:
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; =============================================================================
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; LinkItem_Bottle
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org $07A15B
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{
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BIT $3A : BVS .return ;if Y or B are already pressed
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LDA $6C : BNE .return ; if we are standing in a dooray or not
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JSR Link_CheckNewY_ButtonPress : BCC .return; Check if we just pressed Y Button ;
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JSL LinkItem_NewBottle
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.return
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RTS
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}
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; =============================================================================
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org $328000
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LinkItem_NewBottle:
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{
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; Check if we have a bottle or not
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LDA $7EF34F : DEC A : TAX
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LDA $7EF35C, X : BEQ .exit
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; Check if the bottle is empty
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CMP.b #$03 : BCC .empty_bottle
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; If so, prepare and call the LinkItem_Bottles routine
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JSR LinkItem_Bottles
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.empty_bottle
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; Otherwise, prepare and call the LinkItem_BugCatchingNet routien
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JSR LinkItem_BugCatchingNet
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.exit
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RTL
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}
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; =============================================================================
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; *$3A15B-$3A249 JUMP LOCATION
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LinkItem_Bottles:
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{
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LDA $3A : AND.b #$BF : STA $3A
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; Check if we have a bottle or not
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LDA $7EF34F : DEC A : TAX
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LDA $7EF35C, X : BEQ .exit ; (RTS)
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CMP.b #$03 : BCC .LinkItem_UselessBottle
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CMP.b #$03 : BEQ .LinkItem_RedPotion
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CMP.b #$04 : BEQ .LinkItem_GreenPotion
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CMP.b #$05 : BEQ .LinkItem_BluePotion
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CMP.b #$06 : BEQ .fairy
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BRL .LinkItem_BeeBottle
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.exit
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RTS
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.fairy:
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BRL .LinkItem_FairyBottle
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.LinkItem_RedPotion:
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LDA $7EF36C : CMP $7EF36D : BNE .can_drink
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.LinkItem_UselessBottle:
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BRL $07A955
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.can_drink:
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LDA.b #$02 : STA $7EF35C, X
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STZ $0301
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LDA.b #$04 : STA $11
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LDA $10 : STA $010C
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LDA.b #$0E : STA $10
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LDA.b #$07 : STA $0208
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JSL $0DFA58
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RTS
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.LinkItem_GreenPotion:
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LDA $7EF36E : CMP.b #$80 : BNE .BRANCH_THETA
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BRL $07A955
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.BRANCH_THETA:
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LDA $02 : STA $7EF35C, X
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STZ $0301
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; submodule ????
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LDA.b #$08 : STA $11
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LDA $10 : STA $010C
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; Go to text mode
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LDA.b #$0E : STA $10
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LDA.b #$07 : STA $0208
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JSL $0DFA58
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BRA .BRANCH_IOTA
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.LinkItem_BluePotion:
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LDA $7EF36C : CMP $7EF36D : BNE .useBluePotion
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LDA $7EF36E : CMP.b #$80 : BNE .useBluePotion
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BRL $07A955
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.useBluePotion
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LDA.b #$02 : STA $7EF35C, X
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STZ $0301
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LDA.b #$09 : STA $11
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LDA $10 : STA $010C
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LDA.b #$0E : STA $10
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LDA.b #$07 : STA $0208
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JSL $0DFA58
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BRA .BRANCH_IOTA
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.LinkItem_FairyBottle:
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STZ $0301
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JSL PlayerItem_SpawnFaerie : BPL .BRANCH_NU
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BRL $07A955
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.BRANCH_NU:
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LDA.b #$02 : STA $7EF35C, X
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JSL $0DFA58
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BRA .BRANCH_IOTA
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.LinkItem_BeeBottle:
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STZ $0301
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JSL PlayerItem_ReleaseBee : BPL .bee_spawn_success
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BRL $07A955
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.bee_spawn_success
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LDA.b #$02 : STA $7EF35C, X
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JSL $0DFA58
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.BRANCH_IOTA:
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RTS
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}
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; =============================================================================
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pose_id:
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db $0B, $06, $07, $08, $01, $02, $03, $04, $05, $06 ; up
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db $01, $02, $03, $04, $05, $06, $07, $08, $01, $02 ; down
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db $09, $04, $05, $06, $07, $08, $01, $02, $03, $04 ; left
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db $0A, $08, $01, $02, $03, $04, $05, $06, $07, $08 ; right
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pose_offset:
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db $00 ; up
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db $0A ; down
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db $14 ; left
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db $1E ; right
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; *$3AFF8-$3B072 LOCAL
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LinkItem_BugCatchingNet:
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{
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LDA $2F : LSR A : TAY
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LDX pose_offset, Y
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LDA pose_id, X : STA $0300
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LDA.b #$03 : STA $3D
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STZ $030D, X
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LDA.b #$10 : STA $037A
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LDA.b #$01 : TSB $50
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STZ $2E
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; LDA.b #$32 : JSL Player_DoSfx2
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.y_press:
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JSR Unknown ; $3AE65 IN ROM
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LDA $67 : AND.b #$F0 : STA $67
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DEC $3D : BPL .BRANCH_BETA
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LDX $030D : INX : STX $030D
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LDA.b #$03 : STA $3D
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LDA $2F : LSR A : TAY
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LDA pose_offset, Y : CLC : ADC $030D : TAY
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LDA pose_id, Y : STA $0300
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CPX.b #$0A : BNE .BRANCH_BETA
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STZ $030D
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STZ $0300
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LDA $3A : AND.b #$80 : STA $3A
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STZ $037A
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LDA $50 : AND.b #$FE : STA $50
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LDA.b #$80 : STA $44 : STA $45
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.BRANCH_BETA:
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RTS
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}
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; *$3AE65-$3AE87 LOCAL
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Unknown:
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{
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LDA $AD : CMP.b #$02 : BNE .BRANCH_ALPHA
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LDA $0322 : AND.b #$03 : CMP.b #$03 : BNE .BRANCH_ALPHA
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STZ $30
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STZ $31
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STZ $67
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STZ $2A
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STZ $2B
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STZ $6B
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.BRANCH_ALPHA:
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; Cane of Somaria transit lines?
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LDA $02F5 : BEQ .BRANCH_BETA
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STZ $67
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.BRANCH_BETA:
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RTS
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}
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; =============================================================================
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