From 7966264fdf4271c8b247d572c2eadef88dcaf4b4 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 17 Nov 2014 23:26:43 +0300
Subject: Allow continue npc script execution if distance to npc bigger than
 limit.

---
 src/Makefile.am |  2 ++
 src/map/init.c  |  2 ++
 src/map/npc.c   | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 src/map/npc.h   |  9 +++++++++
 4 files changed, 60 insertions(+)
 create mode 100644 src/map/npc.c
 create mode 100644 src/map/npc.h

(limited to 'src')

diff --git a/src/Makefile.am b/src/Makefile.am
index 51ef27a..c739693 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -17,6 +17,8 @@ LOGIN_SRC = login/config.c \
 MAP_SRC = map/dummy.c \
     map/dummy.h \
     map/init.c \
+    map/npc.c \
+    map/npc.h \
     map/parse.c \
     map/parse.h \
     map/pc.c \
diff --git a/src/map/init.c b/src/map/init.c
index 52c5f58..795a331 100644
--- a/src/map/init.c
+++ b/src/map/init.c
@@ -35,6 +35,7 @@
 
 #include "common/interfaces.h"
 #include "map/dummy.h"
+#include "map/npc.h"
 #include "map/parse.h"
 #include "map/script.h"
 #include "map/pc.h"
@@ -121,6 +122,7 @@ HPExport void plugin_init (void)
     addPacket(0x7530, 22, map_parse_version, hpClif_Parse);
     addHookPre("pc->readparam", epc_readparam_pre);
     addHookPre("pc->setregistry", epc_setregistry);
+    addHookPre("npc->checknear", enpc_checknear);
 
     langScriptId = script->add_str("Lang");
 }
diff --git a/src/map/npc.c b/src/map/npc.c
new file mode 100644
index 0000000..054505d
--- /dev/null
+++ b/src/map/npc.c
@@ -0,0 +1,47 @@
+// Copyright (c) Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// Copyright (c) 2014 Evol developers
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../../../common/HPMi.h"
+#include "../../../common/malloc.h"
+#include "../../../common/mmo.h"
+#include "../../../common/socket.h"
+#include "../../../common/strlib.h"
+#include "../../../map/npc.h"
+#include "../../../map/pc.h"
+
+#include "map/npc.h"
+
+struct npc_data* enpc_checknear(struct map_session_data* sd, struct block_list* bl)
+{
+    struct npc_data *nd;
+
+    hookStop();
+
+    if (!sd)
+        return NULL;
+
+    if (bl == NULL)
+        return NULL;
+    if (bl->type != BL_NPC)
+        return NULL;
+    nd = (TBL_NPC*)bl;
+
+    if (sd->npc_id == bl->id)
+        return nd;
+
+    if (nd->class_ < 0) //Class-less npc, enable click from anywhere.
+        return nd;
+
+    if (bl->m != sd->bl.m ||
+        bl->x < sd->bl.x - AREA_SIZE - 1 || bl->x > sd->bl.x + AREA_SIZE + 1 ||
+        bl->y < sd->bl.y - AREA_SIZE - 1 || bl->y > sd->bl.y + AREA_SIZE + 1)
+    {
+        return NULL;
+    }
+
+    return nd;
+}
diff --git a/src/map/npc.h b/src/map/npc.h
new file mode 100644
index 0000000..8053352
--- /dev/null
+++ b/src/map/npc.h
@@ -0,0 +1,9 @@
+// Copyright (c) Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// Copyright (c) 2014 Evol developers
+
+#ifndef EVOL_MAP_NPC
+#define EVOL_MAP_NPC
+
+struct npc_data* enpc_checknear(struct map_session_data* sd, struct block_list* bl);
+
+#endif  // EVOL_MAP_NPC
-- 
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