Add new config to allow player vend/chat room nearby hidden npc (#834)

credit to Emistry for the idea

3 files changed, 5 insertions, 0 deletions

diff --git a/src/map/battle.c b/src/map/battle.c
index 1cbc3baa5..ba640fedf 100644
--- a/src/map/battle.c
+++ b/src/map/battle.c
@@ -7103,6 +7103,7 @@ static const struct battle_data {
 	{ "mvp_tomb_enabled",                   &battle_config.mvp_tomb_enabled,                1,      0,      1               },
 	{ "feature.atcommand_suggestions",      &battle_config.atcommand_suggestions_enabled,   0,      0,      1               },
 	{ "min_npc_vendchat_distance",          &battle_config.min_npc_vendchat_distance,       3,      0,      100             },
+	{ "vendchat_near_hiddennpc",            &battle_config.vendchat_near_hiddennpc,         0,      0,      1               },
 	{ "atcommand_mobinfo_type",             &battle_config.atcommand_mobinfo_type,          0,      0,      1               },
 	{ "homunculus_max_level",               &battle_config.hom_max_level,                   99,     0,      MAX_LEVEL,      },
 	{ "homunculus_S_max_level",             &battle_config.hom_S_max_level,                 150,    0,      MAX_LEVEL,      },
diff --git a/src/map/battle.h b/src/map/battle.h
index 0ebc0aeb9..55ddf3b9b 100644
--- a/src/map/battle.h
+++ b/src/map/battle.h
@@ -471,6 +471,7 @@ struct Battle_Config {
 
 	int atcommand_suggestions_enabled;
 	int min_npc_vendchat_distance;
+	int vendchat_near_hiddennpc;
 	int atcommand_mobinfo_type;
 
 	int mob_size_influence; // Enable modifications on earned experience, drop rates and monster status depending on monster size. [mkbu95]
diff --git a/src/map/npc.c b/src/map/npc.c
index 7044fefcf..017d60fff 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -137,6 +137,9 @@ int npc_isnear_sub(struct block_list* bl, va_list args) {
 	if( nd->option & (OPTION_HIDE|OPTION_INVISIBLE) )
 		return 0;
 
+	if( battle_config.vendchat_near_hiddennpc && ( nd->class_ == -1 || nd->class_ == 139 ) )
+		return 0;
+
 	return 1;
 }