From baeacac7c2e48120dffcbb8660655c6b15aae5f1 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 9 Jul 2018 23:39:16 +0300
Subject: Update packet ZC_PC_PURCHASE_ITEMLIST.

---
 src/map/clif.c           | 30 +++++++++++++++++-------------
 src/map/packets_struct.h | 17 +++++++++++++++++
 2 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/src/map/clif.c b/src/map/clif.c
index c104194eb..17f108c18 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -2093,12 +2093,13 @@ static void clif_buylist(struct map_session_data *sd, struct npc_data *nd)
 {
 	struct npc_item_list *shop = NULL;
 	unsigned short shop_size = 0;
-	int fd,i,c;
+	int fd, i, c, len;
+	struct PACKET_ZC_PC_PURCHASE_ITEMLIST *p;
 
 	nullpo_retv(sd);
 	nullpo_retv(nd);
 
-	if( nd->subtype == SCRIPT ) {
+	if (nd->subtype == SCRIPT) {
 		shop = nd->u.scr.shop->item;
 		shop_size = nd->u.scr.shop->items;
 	} else {
@@ -2108,26 +2109,29 @@ static void clif_buylist(struct map_session_data *sd, struct npc_data *nd)
 
 	fd = sd->fd;
 
-	WFIFOHEAD(fd, 4 + shop_size * 11);
-	WFIFOW(fd,0) = 0xc6;
+	len = sizeof(struct PACKET_ZC_PC_PURCHASE_ITEMLIST) + shop_size * sizeof(struct PACKET_ZC_PC_PURCHASE_ITEMLIST_sub);
+	WFIFOHEAD(fd, len);
+	p = WFIFOP(fd, 0);
+	p->packetType = 0xc6;
 
 	c = 0;
-	for( i = 0; i < shop_size; i++ ) {
-		if( shop[i].nameid ) {
+	for (i = 0; i < shop_size; i++) {
+		if (shop[i].nameid) {
 			struct item_data* id = itemdb->exists(shop[i].nameid);
 			int val = shop[i].value;
-			if( id == NULL )
+			if (id == NULL)
 				continue;
-			WFIFOL(fd, 4+c*11) = val;
-			WFIFOL(fd, 8+c*11) = pc->modifybuyvalue(sd,val);
-			WFIFOB(fd,12+c*11) = itemtype(id->type);
-			WFIFOW(fd,13+c*11) = ( id->view_id > 0 ) ? id->view_id : id->nameid;
+			p->items[c].price = val;
+			p->items[c].discountPrice = pc->modifybuyvalue(sd, val);
+			p->items[c].itemType = itemtype(id->type);
+			p->items[c].itemId = (id->view_id > 0) ? id->view_id : id->nameid;
 			c++;
 		}
 	}
 
-	WFIFOW(fd,2) = 4 + c*11;
-	WFIFOSET(fd,WFIFOW(fd,2));
+	len = sizeof(struct PACKET_ZC_PC_PURCHASE_ITEMLIST) + c * sizeof(struct PACKET_ZC_PC_PURCHASE_ITEMLIST_sub);
+	p->packetLength = len;
+	WFIFOSET(fd, len);
 }
 
 /// Presents list of items, that can be sold to an NPC shop (ZC_PC_SELL_ITEMLIST).
diff --git a/src/map/packets_struct.h b/src/map/packets_struct.h
index 07cee8f34..2d6b3c4c4 100644
--- a/src/map/packets_struct.h
+++ b/src/map/packets_struct.h
@@ -2248,6 +2248,23 @@ struct PACKET_ZC_PC_PURCHASE_MYITEMLIST {
 	struct PACKET_ZC_PC_PURCHASE_MYITEMLIST_sub items[];
 } __attribute__((packed));
 
+struct PACKET_ZC_PC_PURCHASE_ITEMLIST_sub {
+	uint32 price;
+	uint32 discountPrice;
+	uint8 itemType;
+#if PACKETVER_RE_NUM >= 20180704
+	uint32 itemId;
+#else
+	uint16 itemId;
+#endif
+} __attribute__((packed));
+
+struct PACKET_ZC_PC_PURCHASE_ITEMLIST {
+	int16 packetType;
+	int16 packetLength;
+	struct PACKET_ZC_PC_PURCHASE_ITEMLIST_sub items[];
+} __attribute__((packed));
+
 #if !defined(sun) && (!defined(__NETBSD__) || __NetBSD_Version__ >= 600000000) // NetBSD 5 and Solaris don't like pragma pack but accept the packed attribute
 #pragma pack(pop)
 #endif // not NetBSD < 6 / Solaris
-- 
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