80 lines
3.0 KiB
NASM
80 lines
3.0 KiB
NASM
;--------------------------------------------------------------------------------
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; $7F5010 - Scratch Space (Callee Preserved)
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;--------------------------------------------------------------------------------
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!GOAL_COUNTER = "$7EF460"
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DrawGoalIndicator:
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LDA.l GoalItemRequirement : AND.w #$00FF : BNE + : RTL : + ; Star Meter
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PHX
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LDX.w #$0000
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LDA.l GoalItemIcon : STA $7EC72C, X : INX #2 ; draw star icon and move the cursor
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LDA.l !GOAL_COUNTER
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AND.w #$00FF
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JSL.l HexToDec
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LDA $7F5005 : AND.w #$00FF : ORA.w #$2400 : STA $7EC72C, X : INX #2 ; draw 10's digit and move the cursor
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LDA $7F5006 : AND.w #$00FF : ORA.w #$2400 : STA $7EC72C, X : INX #2 ; draw 10's digit and move the cursor
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LDA $7F5007 : AND.w #$00FF : ORA.w #$2400 : STA $7EC72C, X : INX #2 ; draw 1's and move the cursor
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LDA.l GoalItemRequirement : AND.w #$00FF : CMP.w #$00FF : BEQ .skip
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LDA.w #$2830 : STA $7EC72C, X : INX #2 ; draw slash and move the cursor
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LDA.l GoalItemRequirement
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AND.w #$00FF
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JSL.l HexToDec
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LDA $7F5006 : AND.w #$00FF : ORA.w #$2400 : STA $7EC72C, X : INX #2 ; draw 10's digit and move the cursor
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LDA $7F5007 : AND.w #$00FF : ORA.w #$2400 : STA $7EC72C, X : INX #2 ; draw 1's and move the cursor
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BRA .done
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.skip
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LDA.w #$207F
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STA $7EC72C, X : INX #
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STA $7EC72C, X : INX #
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STA $7EC72C, X : INX #
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.done
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PLX
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RTL
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;--------------------------------------------------------------------------------
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GoalItemGanonCheck:
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LDA $0E20, X : CMP.b #$D6 : BNE .success ; skip if not ganon
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JSL.l CheckGanonVulnerability
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BCS .success
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.fail
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LDA $0D80, X : CMP.b #17 : !BLT .success ; decmial 17 because Acmlm's chart is decimal
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LDA.b #$00
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RTL
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.success
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LDA $44 : CMP.b #$80 ; thing we wrote over
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RTL
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;--------------------------------------------------------------------------------
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;Carry clear = ganon invincible
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;Carry set = ganon vulnerable
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CheckGanonVulnerability:
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LDA InvincibleGanon : BEQ .success
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;#$00 = Off
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+ : CMP #$01 : BEQ .fail
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;#$01 = On
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+ : CMP #$02 : BNE +
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;#$02 = Require All Dungeons
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LDA $7EF374 : AND.b #$07 : CMP #$07 : BNE .fail ; require all pendants
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LDA $7EF37A : AND.b #$7F : CMP #$7F : BNE .fail ; require all crystals
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LDA $7EF3C5 : CMP.b #$03 : !BLT .fail ; require post-aga world state
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LDA $7EF2DB : AND.b #$20 : CMP #$20 : BNE .fail ; require aga2 defeated (pyramid hole open)
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BRA .success
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+ : CMP #$04 : BNE +
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;#$04 = Require All Crystals
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LDA $7EF37A : AND.b #$7F : CMP #$7F : BNE .fail ; require all crystals
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BRA .success
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+ CMP #$03 : BNE +
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;#$03 = Require All Crystals and Aga 2
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LDA $7EF37A : AND.b #$7F : CMP #$7F : BNE .fail ; require all crystals
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LDA $7EF2DB : AND.b #$20 : CMP #$20 : BNE .fail ; require aga2 defeated (pyramid hole open)
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BRA .success
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+ CMP #$05 : BNE +
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;#$05 = Require 100 Goal Items
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LDA.l !GOAL_COUNTER : CMP.w #100 : !BLT .fail ; require 100 goal items
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BRA .success
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+
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.fail : CLC : RTL
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.success : SEC : RTL
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;-------------------------------------------------------------------------------- |