pack/unpack id api

README.md

@@ -2,6 +2,8 @@
 
 ```
 id :: id
+pack :: integer, integer -> id
+unpack :: id -> integer, integer
 alive :: id -> boolean
 destroy :: id -> ()
 get :: entity, fragment...  -> component...

evolved.lua

@@ -10,6 +10,18 @@ local evolved = {}
 ---@nodiscard
 function evolved.id() end
 
+---@param index integer
+---@param version integer
+---@return evolved.id
+---@nodiscard
+function evolved.pack(index, version) end
+
+---@param id evolved.id
+---@return integer index
+---@return integer version
+---@nodiscard
+function evolved.unpack(id) end
+
 ---@param id evolved.id
 ---@return boolean
 ---@nodiscard