added amb844 - get_pdata_ent

dlls/fakemeta/pdata.cpp

@@ -143,12 +143,48 @@ static cell AMX_NATIVE_CALL set_pdata_string(AMX *amx, cell *params)
 	return 1;
 }
 
-AMX_NATIVE_INFO pdata_natives[] = {
+static cell AMX_NATIVE_CALL get_pdata_ent(AMX *amx, cell *params)
+{
+	int index=params[1];
+	int iOffset=params[2];
+
+	CHECK_ENTITY(index);
+
+#ifdef __linux__
+	iOffset += params[3];
+#endif
+
+	edict_t *pEdict = *(edict_t **)((char *)(INDEXENT2(index)->pvPrivateData) + iOffset);
+
+	if (pEdict == NULL)
+	{
+		return -1;
+	}
+
+	edict_t *pWorld = INDEXENT(0);
+	int ent = pEdict - pWorld;
+
+	if (ent < 0 || ent > gpGlobals->maxEntities)
+	{
+		return -2;
+	}
+
+	if (pEdict->free || pEdict->pvPrivateData == NULL)
+	{
+		return -1;
+	}
+
+	return ent;
+}
+
+AMX_NATIVE_INFO pdata_natives[] =
+{
 	{ "get_pdata_int",		get_pdata_int },
 	{ "set_pdata_int",		set_pdata_int },
 	{ "get_pdata_float",	get_pdata_float },
 	{ "set_pdata_float",	set_pdata_float },
 	{ "set_pdata_string",	set_pdata_string },
 	{ "get_pdata_string",	get_pdata_string },
+	{ "get_pdata_ent",		get_pdata_ent },
 	{ NULL,					NULL }
 };

plugins/include/fakemeta.inc

@@ -110,6 +110,20 @@ native Float:get_pdata_float(_index,_Offset,_linuxdiff=5);
 /* Sets a float from private data.  _linuxdiff is added into the _Offset if it's used on a linux server. */
 native set_pdata_float(_index,_Offset,Float:_Value,_linuxdiff=5);
 
+/**
+ * Tries to retrieve an edict (entity encapsulation) pointer from an entity's private data.
+ *
+ * This function is byte-addressable.  Unlike get_pdata_int() which searches in byte increments of 4, 
+ * get_pdata_end searches in increments of 1.
+ *
+ * @param _index		Entity index.
+ * @param _offset		Offset to search.
+ * @param _linuxdiff	Linux difference.
+ * @return				-2 if an invalid entity was found.
+ *						-1 if an empty entity was found.
+ * 						Otherwise, an entity index is returned.
+ */
+native get_pdata_ent(_index, _offset, _linuxdiff=20);
 
 /* Registers a forward.
  * Returns an id you can pass to unregister_forward