From 4af145d56d908ae6ef7e55a1d369364ed1442def Mon Sep 17 00:00:00 2001
From: Karkat <north@tinymagnet.com>
Date: Tue, 3 Apr 2018 01:01:04 -0400
Subject: [PATCH] finished sprite swap (still commented out)

---
 LTTP_RND_GeneralBugfixes.asm |  3 ++-
 events.asm                   |  1 +
 spriteswap.asm               | 31 +++++++++++++++++--------------
 3 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/LTTP_RND_GeneralBugfixes.asm b/LTTP_RND_GeneralBugfixes.asm
index 715f710..cf46608 100644
--- a/LTTP_RND_GeneralBugfixes.asm
+++ b/LTTP_RND_GeneralBugfixes.asm
@@ -26,7 +26,7 @@ org $3FFFFF ; <- 1FFFFF
 db #$00 ; expand file to 2mb
 
 org $1FFFF8 ; <- FFFF8 timestamp rom
-db #$20, #$18, #$03, #$28 ; year/month/day
+db #$20, #$18, #$04, #$02 ; year/month/day
 
 ;================================================================================
 
@@ -76,6 +76,7 @@ db #$20, #$18, #$03, #$28 ; year/month/day
 
 incsrc hooks.asm
 incsrc treekid.asm
+;incsrc spriteswap.asm
 incsrc hashalphabethooks.asm
 
 ;org $208000 ; bank #$20
diff --git a/events.asm b/events.asm
index d1b0d52..6e94c6e 100644
--- a/events.asm
+++ b/events.asm
@@ -11,6 +11,7 @@ OnDrawHud:
 	JSL.l DrawChallengeTimer
 	JSL.l DrawGoalIndicator
 	JSL.l DrawDungeonCompassCounts
+	;JSL.l SwapSpriteIfNecissary
 RTL
 ;--------------------------------------------------------------------------------
 ;OnDungeonEntrance:
diff --git a/spriteswap.asm b/spriteswap.asm
index 79197ad..022cc51 100644
--- a/spriteswap.asm
+++ b/spriteswap.asm
@@ -2,19 +2,31 @@ org $008A01 ; 0xA01 - Bank00.asm (LDA.b #$10 : STA $4304 : STA $4314 : STA $4324
 LDA $BC
 
 org $1BEDF9
-JSL Palette_ArmorAndGloves ;4bytes
+JSL SpriteSwap_Palette_ArmorAndGloves ;4bytes
 RTL ;1byte 
 NOP #$01
 
 org $1BEE1B
-JSL Palette_ArmorAndGloves_part_two
+JSL SpriteSwap_Palette_ArmorAndGloves_part_two
 RTL
 
 !SPRITE_SWAP = "$7F50CD"
 ;!STABLE_SCRATCH = "$7EC178"
+!BANK_BASE = "#$29"
 
 org $BF8000
-Palette_ArmorAndGloves:
+SwapSpriteIfNecissary:
+	PHP
+		SEP #$20 ; set 8-bit accumulator
+		LDA !SPRITE_SWAP : BEQ + : !ADD !BANK_BASE : CMP $BC : BEQ +
+			STA $BC
+		    STZ $0710 ; Set Normal Sprite NMI
+			JSL.l SpriteSwap_Palette_ArmorAndGloves_part_two
+		+
+	PLP
+RTL
+
+SpriteSwap_Palette_ArmorAndGloves:
 {
     ;DEDF9
     LDA !SPRITE_SWAP : BNE .continue
@@ -36,7 +48,7 @@ Palette_ArmorAndGloves:
     PHX : PHY : PHA
     ; Load armor palette
         PHB : PHK : PLB
-    REP #$20
+    REP #$20 ; set 16-bit accumulator
     
     ; Check what Link's armor value is.
     LDA $7EF35B : AND.w #$00FF : TAX
@@ -45,14 +57,13 @@ Palette_ArmorAndGloves:
     
     LDA $1BEC06, X : AND.w #$00FF : ASL A : ADC.w #$F000 : STA $00
     ;replace D308 by 7000 and search
-    REP #$10
+    REP #$10 ; set 16-bit index registers
     
     LDA.w #$01E2 ; Target SP-7 (sprite palette 6)
     LDX.w #$000E ; Palette has 15 colors
     
     TXY : TAX
     
-    ;LDA !STABLE_SCRATCH : AND #$00FF : STA $02
     LDA.b $BC : AND #$00FF : STA $02
 
 .loop
@@ -72,12 +83,4 @@ Palette_ArmorAndGloves:
     INC $15
     PLA : PLY : PLX
     RTL
-}
-
-SpriteSwap_SetSprite:
-{
-    ;LDA $BC : CLC : ADC #$32 : STA !STABLE_SCRATCH
-    JSL Palette_ArmorAndGloves
-    STZ $0710 ; Set Normal Sprite NMI
-    RTL
 }
\ No newline at end of file