Merge pull request #104 from Arkshine/add-change_level

Add change_level() native.

amxmodx/amxmodx.cpp

@@ -2552,6 +2552,18 @@ static cell AMX_NATIVE_CALL change_task(AMX *amx, cell *params)
 	return g_tasksMngr.changeTasks(params[1], params[3] ? 0 : amx, flNewTime);
 }
 
+static cell AMX_NATIVE_CALL change_level(AMX *amx, cell *params)
+{
+	int length;
+	const char* new_map = get_amxstring(amx, params[1], 0, length);
+
+	// Same as calling "changelevel" command but will trigger "server_changelevel" AMXX forward as well.
+	// Filling second param will call "changelevel2" command, but this is not usable in multiplayer game. 
+	g_pEngTable->pfnChangeLevel(new_map, NULL);
+
+	return 1;
+}
+
 static cell AMX_NATIVE_CALL task_exists(AMX *amx, cell *params) /* 1 param */
 {
 	return g_tasksMngr.taskExists(params[1], params[2] ? 0 : amx);
@@ -4816,6 +4828,7 @@ AMX_NATIVE_INFO amxmodx_Natives[] =
 	{"callfunc_push_str",		callfunc_push_str},
 	{"callfunc_push_array",		callfunc_push_array},
 	{"change_task",				change_task},
+	{"change_level",			change_level},
 	{"client_cmd",				client_cmd},
 	{"client_print",			client_print},
 	{"client_print_color",		client_print_color},

plugins/admincmd.sma

@@ -633,7 +633,7 @@ public cmdSlap(id, level, cid)
 
 public chMap(map[])
 {
-	server_cmd("changelevel %s", map)
+	change_level(map);
 }
 
 public cmdMap(id, level, cid)

plugins/include/amxmodx.inc

@@ -85,6 +85,20 @@ native precache_sound(const name[]);
 /* Precaches any file. */
 native precache_generic(const szFile[]);
 
+/**
+ * Changes map.
+ *
+ * @note  This calls the pfnChangelLevel engine function.
+ * @note  This has the same behavior as calling the "changelevel" server command,
+ *        but this will also trigger the server_changelevel() forward in AMXX plugins.
+ *        It will also notify any Metamod plugins that are hooking pfnChangeLevel.
+ *
+ * @param map          The map name to change.
+ *
+ * @noreturn
+ */
+native change_level(const map[]);
+
 /* Sets info for player. */
 native set_user_info(index,const info[],const value[]);
 

plugins/mapsmenu.sma

@@ -300,7 +300,7 @@ public cmdMapsMenu(id, level, cid)
 }
 
 public delayedChange(mapname[])
-	server_cmd("changelevel %s", mapname)
+	change_level(mapname)
 
 public actionVoteMapMenu(id, key)
 {

plugins/nextmap.sma

@@ -97,7 +97,7 @@ public delayedChange(param[])
 	if (g_mp_chattime) {
 		set_pcvar_float(g_mp_chattime, get_pcvar_float(g_mp_chattime) - 2.0)
 	}
-	server_cmd("changelevel %s", param)
+	change_level(param)
 }
 
 public changeMap()