config inv size

init.lua

@@ -10,8 +10,8 @@ i3 = {
 	http = core.request_http_api(),
 
 	MAX_FAVS = 6,
-	INV_SIZE = 4*9,
-	HOTBAR_LEN = 9,
+	INV_SIZE = (minetest.settings:get("i3_inv_height") or 4)*(minetest.settings:get("i3_inv_width") or 9),
+	HOTBAR_LEN = (minetest.settings:get("i3_inv_width") or 9),
 	ITEM_BTN_SIZE = 1.1,
 	DROP_BAG_ON_DIE = true,
 	MIN_FORMSPEC_VERSION = 4,

settingtypes.txt

@@ -3,3 +3,9 @@ i3_progressive_mode    (Learn crafting recipes progressively)    bool false
 
 # Regroup the items of the same type in the item list.
 i3_item_compression    (Regroup items of the same type)    bool true
+
+# The height of the inventory
+i3_inv_height          (i3 inventory height)    int 4 1 4
+
+# The width of the inventory
+i3_inv_width           (i3 inventory width)    int 9 1 9