From d2c21b1e412a7a2f3c965a3335ea78a992e7b873 Mon Sep 17 00:00:00 2001
From: Dastgir <dastgirp@gmail.com>
Date: Sun, 2 Sep 2018 11:32:03 +0530
Subject: Fixed Issue #2177

If Item Price is 0, it is now changed to 1.
---
 conf/map/battle/items.conf |  8 ++++++++
 src/map/battle.c           |  2 ++
 src/map/battle.h           |  3 +++
 src/map/pc.c               | 14 ++++++--------
 4 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/conf/map/battle/items.conf b/conf/map/battle/items.conf
index 144e04ea4..e834b80f6 100644
--- a/conf/map/battle/items.conf
+++ b/conf/map/battle/items.conf
@@ -123,3 +123,11 @@ boarding_halter_speed: 25
 // Allow to use items when the storage is open?
 // Official: false (Default)
 storage_use_item: false
+
+// Minimum item buy price at shop
+// Default: 1
+min_item_buy_price: 1
+
+// Minimum item sell price at shop
+// Default: 0
+min_item_sell_price: 0
diff --git a/src/map/battle.c b/src/map/battle.c
index fceb30be1..9d4c416b0 100644
--- a/src/map/battle.c
+++ b/src/map/battle.c
@@ -7371,6 +7371,8 @@ static const struct battle_data {
 	{ "storage_use_item",                   &battle_config.storage_use_item,                0,      0,      1,              },
 	{ "features/enable_attendance_system",  &battle_config.feature_enable_attendance_system,1,      0,      1,              },
 	{ "features/feature_attendance_endtime",&battle_config.feature_attendance_endtime,      1,      0,      99999999,       },
+	{ "min_item_buy_price",                 &battle_config.min_item_buy_price,              1,      0,      INT_MAX,        },
+	{ "min_item_sell_price",                &battle_config.min_item_sell_price,             0,      0,      INT_MAX,        },
 };
 
 static bool battle_set_value_sub(int index, int value)
diff --git a/src/map/battle.h b/src/map/battle.h
index 9f5207e95..4472c0c52 100644
--- a/src/map/battle.h
+++ b/src/map/battle.h
@@ -570,6 +570,9 @@ struct Battle_Config {
 
 	int feature_enable_attendance_system;
 	int feature_attendance_endtime;
+
+	int min_item_buy_price;
+	int min_item_sell_price;
 };
 
 /* criteria for battle_config.idletime_critera */
diff --git a/src/map/pc.c b/src/map/pc.c
index be28f8dad..e20b3760e 100644
--- a/src/map/pc.c
+++ b/src/map/pc.c
@@ -4402,8 +4402,6 @@ static int pc_insert_card(struct map_session_data *sd, int idx_card, int idx_equ
 static int pc_modifybuyvalue(struct map_session_data *sd, int orig_value)
 {
 	int skill_lv, rate1 = 0, rate2 = 0;
-	if (orig_value <= 0)
-		return 0;
 	if ((skill_lv=pc->checkskill(sd,MC_DISCOUNT)) > 0)   // merchant discount
 		rate1 = 5+skill_lv*2-((skill_lv==10)? 1:0);
 	if ((skill_lv=pc->checkskill(sd,RG_COMPULSION)) > 0) // rogue discount
@@ -4412,8 +4410,9 @@ static int pc_modifybuyvalue(struct map_session_data *sd, int orig_value)
 		rate1 = rate2;
 	if (rate1 != 0)
 		orig_value = apply_percentrate(orig_value, 100-rate1, 100);
-	if (orig_value < 1)
-		orig_value = 1;
+
+	if (orig_value < battle_config.min_item_buy_price)
+		orig_value = battle_config.min_item_buy_price;
 	return orig_value;
 }
 
@@ -4423,14 +4422,13 @@ static int pc_modifybuyvalue(struct map_session_data *sd, int orig_value)
 static int pc_modifysellvalue(struct map_session_data *sd, int orig_value)
 {
 	int skill_lv, rate = 0;
-	if (orig_value <= 0)
-		return 0;
 	if ((skill_lv=pc->checkskill(sd,MC_OVERCHARGE)) > 0) //OverCharge
 		rate = 5+skill_lv*2-((skill_lv==10)? 1:0);
 	if (rate != 0)
 		orig_value = apply_percentrate(orig_value, 100+rate, 100);
-	if (orig_value < 1)
-		orig_value = 1;
+
+	if (orig_value < battle_config.min_item_sell_price)
+		orig_value = battle_config.min_item_sell_price;
 	return orig_value;
 }
 
-- 
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