From 8f049e98306b7eaae81ea7df0a837d91ef21d438 Mon Sep 17 00:00:00 2001
From: ai4rei <ai4rei@54d463be-8e91-2dee-dedb-b68131a5f0ec>
Date: Tue, 21 Dec 2010 21:30:46 +0000
Subject: * Fixed dynamic shop arrays @bought_nameid, @bought_quantity,
 @sold_nameid and @sold_quantity not getting reset to zero before use, thus
 providing attached script with wrong/old data, if it did not clear them by
 itself in previous call (bugreport:1574, since r5841).

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@14611 54d463be-8e91-2dee-dedb-b68131a5f0ec
---
 src/map/npc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/map/npc.c')

diff --git a/src/map/npc.c b/src/map/npc.c
index 0b16aa6f9..d210bea94 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -1144,6 +1144,11 @@ static int npc_buylist_sub(struct map_session_data* sd, int n, unsigned short* i
 	int i;
 	int regkey = add_str("@bought_nameid");
 	int regkey2 = add_str("@bought_quantity");
+
+	// discard old contents
+	script_cleararray_pc(sd, "@bought_nameid", (void*)0);
+	script_cleararray_pc(sd, "@bought_quantity", (void*)0);
+
 	snprintf(npc_ev, ARRAYLENGTH(npc_ev), "%s::OnBuyItem", nd->exname);
 	for(i=0;i<n;i++){
 		pc_setreg(sd,regkey+(i<<24),(int)item_list[i*2+1]);
@@ -1371,6 +1376,13 @@ int npc_selllist(struct map_session_data* sd, int n, unsigned short* item_list)
 		return 1;
 	nd = nd->master_nd; //For OnSell triggers.
 
+	if( nd )
+	{
+		// discard old contents
+		script_cleararray_pc(sd, "@sold_nameid", (void*)0);
+		script_cleararray_pc(sd, "@sold_quantity", (void*)0);
+	}
+
 	for(i=0,z=0;i<n;i++) {
 		int nameid, idx;
 		short qty;
-- 
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