From 2ea04fcaf7a5a83879ceeeebc6b29055829bcce9 Mon Sep 17 00:00:00 2001
From: Zur3l <90565581+Zur3l@users.noreply.github.com>
Date: Sat, 11 Jul 2026 16:00:04 -0400
Subject: [PATCH] Decomp GetActualBuyPrice

---
 .../{main_0200D160.inc => main_0200D1A8.inc}  |  1 -
 asm/{main_0200D160.s => main_0200D1A8.s}      | 25 +------------------
 include/item_util_4.h                         |  1 +
 main.lsf                                      |  2 +-
 src/item_util_4.c                             | 12 +++++++++
 5 files changed, 15 insertions(+), 26 deletions(-)
 rename asm/include/{main_0200D160.inc => main_0200D1A8.inc} (97%)
 rename asm/{main_0200D160.s => main_0200D1A8.s} (98%)

diff --git a/asm/include/main_0200D160.inc b/asm/include/main_0200D1A8.inc
similarity index 97%
rename from asm/include/main_0200D160.inc
rename to asm/include/main_0200D1A8.inc
index 4d33a0e5..3070ab77 100644
--- a/asm/include/main_0200D160.inc
+++ b/asm/include/main_0200D1A8.inc
@@ -9,7 +9,6 @@
 .public GetDungeonGroup
 .public GetExclusiveItemType
 .public GetItemActionName
-.public GetItemBuyPrice
 .public GetItemCategory
 .public GetItemName
 .public GetItemPaletteId
diff --git a/asm/main_0200D160.s b/asm/main_0200D1A8.s
similarity index 98%
rename from asm/main_0200D160.s
rename to asm/main_0200D1A8.s
index af7a71e7..313f15a0 100644
--- a/asm/main_0200D160.s
+++ b/asm/main_0200D1A8.s
@@ -1,31 +1,8 @@
 	.include "asm/macros.inc"
-	.include "main_0200D160.inc"
+	.include "main_0200D1A8.inc"
 
 	.text
 
-	arm_func_start GetActualBuyPrice
-GetActualBuyPrice: ; 0x0200D160
-	stmdb sp!, {r4, lr}
-	mov r4, r0
-	ldrsh r0, [r4, #4]
-	bl IsShoppableItem
-	cmp r0, #0
-	moveq r0, #0
-	ldmeqia sp!, {r4, pc}
-	ldrsh r0, [r4, #4]
-	bl IsThrownItem
-	cmp r0, #0
-	ldrsh r0, [r4, #4]
-	beq _0200D1A0
-	bl GetItemBuyPrice
-	ldrh r1, [r4, #2]
-	mul r0, r1, r0
-	ldmia sp!, {r4, pc}
-_0200D1A0:
-	bl GetItemBuyPrice
-	ldmia sp!, {r4, pc}
-	arm_func_end GetActualBuyPrice
-
 	arm_func_start GetActualSellPrice
 GetActualSellPrice: ; 0x0200D1A8
 	stmdb sp!, {r4, lr}
diff --git a/include/item_util_4.h b/include/item_util_4.h
index 00924033..b5005a16 100644
--- a/include/item_util_4.h
+++ b/include/item_util_4.h
@@ -18,6 +18,7 @@ void BulkItemToItem(struct item* item, struct bulk_item* bulk_item);
 void ItemToBulkItem(struct bulk_item* bulk, struct item* item);
 s32 GetDisplayedBuyPrice(struct item* item);
 s32 GetDisplayedSellPrice(struct item* item);
+s32 GetActualBuyPrice(struct item* item);
 
 #endif //PMDSKY_ITEM_UTIL_4_H
 
diff --git a/main.lsf b/main.lsf
index da06a94a..262e1680 100644
--- a/main.lsf
+++ b/main.lsf
@@ -58,7 +58,7 @@ Static main
 	Object asm/main_0200C5B4.o
 	Object src/item_util.o
 	Object src/item_util_4.o
-	Object asm/main_0200D160.o
+	Object asm/main_0200D1A8.o
 	Object src/item_util_1.o
 	Object asm/main_0200EB30.o
 	Object src/main_0200ECFC.o
diff --git a/src/item_util_4.c b/src/item_util_4.c
index 7b431632..88dd752b 100644
--- a/src/item_util_4.c
+++ b/src/item_util_4.c
@@ -10,6 +10,7 @@ extern void ItemZInit();
 extern u16 GetItemBuyPrice(s16);
 extern u16 GetItemSellPrice(s16);
 extern s32 GetMoneyQuantity(struct item*);
+extern bool8 IsShoppableItem(s16);
 extern bool8 IsThrownItem(s16);
 
 BOOL IsLosableItem(struct item* item)
@@ -227,3 +228,14 @@ s32 GetDisplayedSellPrice(struct item* item)
     }
     return GetItemSellPrice(item->id);
 }
+
+s32 GetActualBuyPrice(struct item* item)
+{
+    if (!IsShoppableItem(item->id)) {
+        return 0;
+    }
+    if (IsThrownItem(item->id)) {
+        return item->quantity * GetItemBuyPrice(item->id);
+    }
+    return GetItemBuyPrice(item->id);
+}