Adding new config min_npc_vending_distance which simulates the official 'no vending near npcs' feature. super mega credits to masao

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@16227 54d463be-8e91-2dee-dedb-b68131a5f0ec

1 files changed, 26 insertions, 2 deletions

diff --git a/src/map/vending.c b/src/map/vending.c
index 6deba0e55..e84ac488f 100644
--- a/src/map/vending.c
+++ b/src/map/vending.c
@@ -12,6 +12,7 @@
 #include "chrif.h"
 #include "vending.h"
 #include "pc.h"
+#include "npc.h"
 #include "skill.h"
 #include "battle.h"
 #include "log.h"
@@ -233,13 +234,27 @@ void vending_purchasereq(struct map_session_data* sd, int aid, int uid, const ui
 		}
 	}
 }
+static int vending_checknearnpc_sub(struct block_list* bl, va_list args) {
+    struct npc_data *nd = (struct npc_data*)bl;
+    
+    if( nd->sc.option & (OPTION_HIDE|OPTION_INVISIBLE) )
+        return 1;
 
+    return 1;
+}
+bool vending_checknearnpc(struct block_list * bl) {
+    
+    if( battle_config.min_npc_vending_distance > 0 &&
+            map_foreachinrange(vending_checknearnpc_sub,bl, battle_config.min_npc_vending_distance, BL_NPC) )
+        return true;
+        
+    return false;
+}
 /*==========================================
  * Open shop
  * data := {<index>.w <amount>.w <value>.l}[count]
  *------------------------------------------*/
-void vending_openvending(struct map_session_data* sd, const char* message, bool flag, const uint8* data, int count)
-{
+void vending_openvending(struct map_session_data* sd, const char* message, bool flag, const uint8* data, int count) {
 	int i, j;
 	int vending_skill_lvl;
 	nullpo_retv(sd);
@@ -265,6 +280,15 @@ void vending_openvending(struct map_session_data* sd, const char* message, bool
 		return;
 	}
 
+    if( vending_checknearnpc(&sd->bl) ) {
+        char output[50];
+        sprintf(output,"You're too close to a NPC, you must be at least %d cells away from any NPC.",battle_config.min_npc_vending_distance);
+        clif_displaymessage(sd->fd, output);
+        clif_skill_fail(sd, MC_VENDING, USESKILL_FAIL_LEVEL, 0);
+        return;
+    }
+        
+    
 	// filter out invalid items
 	i = 0;
 	for( j = 0; j < count; j++ )