Add variable ganon vulnerability mode

2025-09-01 13:15:22 -05:00
parent cef41b1674
commit e4f9c4cffc
8 changed files with 385 additions and 28 deletions
--- a/variable_ganon_vulnerability.asm
+++ b/variable_ganon_vulnerability.asm
@@ -0,0 +1,130 @@
+Ganon_CheckAncillaVulnerability:
+	PHA
+	LDA.w $0EE0, X : BNE .not_vulnerable_pla
+	PLA
+	PHX : PHA
+	LDA.l GanonVulnerabilityItem
+	BMI .no_weakness
+	TAX : PLA
+	CMP.l Ganon_CheckByAncilla, X : BNE +
+	PLX : BRA .vulnerable
+	PLX : PHA
+	LDA.l GanonVulnerabilityItem
+	BEQ .silver_arrows
+	CMP.b #$01 : BEQ .silver_arrows
+	CMP.b #$11 : BEQ .somaria
+	BRA .not_vulnerable_pla
+
+.no_weakness
+	PLA : PLX
+	BRA .not_vulnerable
+
+.silver_arrows
+	PLA : CMP.b #$09 : BNE .not_vulnerable
+	LDA.l BowEquipment : CMP.b #$03 : BCS +
+		LDA.b #$09 : BRA .not_vulnerable
+	BRA .vulnerable
+
+.somaria
+	PLA
+	CMP.b #$01 : BEQ .vulnerable
+	CMP.b #$2C : BEQ .vulnerable
+	BRA .not_vulnerable
+
+.vulnerable
+	PHX
+	LDA.l GanonVulnerabilityItem
+	TAX
+	LDA.l Ganon_IFrameDuration, X
+	PLX
+	STA.w $0EE0, X ; give the poor pig some iframes
+	LDA.b #$20 : STA.w SpriteTimerE, X
+	LDA.b #$09
+	RTL
+.not_vulnerable_pla_pla
+	PLA
+.not_vulnerable_pla
+	PLA
+.not_vulnerable
+	PHX : TAX
+	LDA.l $86EC84, X
+	PLX
+	RTL
+;--------------------------------------------------------------------------------
+Ganon_CheckPowderVulnerability:
+	LDA.l GanonVulnerabilityItem : CMP.b #$05 : BNE .normal
+	LDA.w SpriteTypeTable, X : CMP.b #$D7 : BNE .normal
+	LDA.w $0EE0, X : BNE .normal ; ganon has i-frames
+	LDA.l Ganon_IFrameDuration+$05
+	STA.w $0EE0, X ; give ganon i-frames
+	LDA.b #$20 : STA.w SpriteTimerE, X
+	LDA.b #$09
+	BRA .done
+
+.normal
+	LDA.b #$0A
+.done
+	JML $86ECE6
+;--------------------------------------------------------------------------------
+Ganon_CheckBeeVulnerability:
+; X is bee sprite index
+; Y is target sprite index
+	LDA.l GanonVulnerabilityItem : CMP.b #$10 : BNE .normal
+	LDA.w SpriteTypeTable, Y : CMP.b #$D7 : BNE .normal
+	LDA.w $0EE0, Y : BNE .normal ; ganon has i-frames
+	LDA.l Ganon_IFrameDuration+$10
+	STA.w $0EE0, X ; give ganon i-frames
+	LDA.b #$20 : STA.w SpriteTimerE, X
+	LDA.b #$09
+	BRA .done
+
+.normal
+	LDA.b #$01
+.done
+	TYX
+	JML $86ECE6
+;--------------------------------------------------------------------------------
+Ganon_CheckInvincible:
+	LDA.w $04C5 : CMP.b #$02 : BEQ .not_transparent
+	LDA.w SpriteTypeTable, X : CMP.b #$D7 : BNE .transparent ; non-stunned ganon
+	LDA.w UseY1 : AND.b #$0A : BEQ .transparent ; normal behavior if not hammering
+	LDA.l GanonVulnerabilityItem : CMP.b #$0C : BNE .transparent
+.not_transparent
+	LDA.b #$00 : RTL
+.transparent
+	LDA.b #$01 : RTL
+;--------------------------------------------------------------------------------
+Ganon_CheckHammerVulnerability:
+	LDA.l GanonVulnerabilityItem : CMP.b #$0C : BNE .normal
+	LDA.w SpriteTypeTable, X : CMP.b #$D7 : BNE .normal
+	LDA.w $0EE0, X : BNE .normal ; ganon has i-frames
+	LDA.l Ganon_IFrameDuration+$0C
+	STA.w $0EE0, X ; give ganon i-frames
+	LDA.b #$20 : STA.w SpriteTimerE, X
+	LDA.b #$09 : STA.w $0CF2 ; set damage class to silver
+	SEC : RTL
+.normal
+	CLC : RTL
+;--------------------------------------------------------------------------------
+CheckBeeBoss:
+; Y is sprite index
+	LDA.l GanonVulnerabilityItem : CMP.b #$10 : BNE .normal
+	LDA.w SpriteTypeTable, Y : CMP.b #$D7 : BNE .normal
+	LDA.b #$00 : RTL
+.normal
+	LDA.w $0B6B, Y : AND.b #$02
+	RTL
+;--------------------------------------------------------------------------------
+Ganon_CheckByAncilla:
+	db #$00 ; default behavior
+	db #$00, #$05, #$1F, #$07, #$00
+	db #$02, #$0B, #$19, #$18, #$1C
+	db #$00, #$00, #$00, #$00, #$00
+	db #$00, #$00, #$31, #$00, #$00
+Ganon_IFrameDuration:
+	db #$00 ; default behavior
+	db #$00, #$00, #$00, #$34, #$00
+	db #$00, #$00, #$00, #$00, #$00
+	db #$00, #$00, #$00, #$00, #$00
+	db #$00, #$00, #$00, #$00, #$00
+;--------------------------------------------------------------------------------