__namecall and self

-- note this is for roblox exploiting

local mt = getrawmetatable(mt) -- Gets metatable of game, also bypasses __metatable error
local mt_namecall = mt.__namecall -- Create a backup metatable of game
do setreadonly(mt, false) end -- Makes a new scope and makes it writeable as well as readable

mt.__namecall = newcclosure(function(self, ...) -- Wraps a function in a C (more undetectable), and assigns 2 args, the thing being called on by the method, e.g: :Destroy, :Remove, and ... as extra args
local args = {...} -- Wraps all extra parameters in a table
local method = table.remove(args) -- Gets the method being used, e.g: :Destroy, :Remove, always last arg.

if self.Name == "whopie" then -- check if the object being called on by a method is named whopie
return "OH HELLO THERE" -- return a shitty return thing
end

return mt_namecall(self, ...) -- returns backup, so we dont completely overwrite this whole metatable.

end)

-- extra information : self, is usually operating on itself..., e.g:

local table = {ass = "cheesy"}
function table:smellass() -- gives it a colon : which adds a secret parameter, self. it can also be : table.smellass(self), must be 1st arg
return self.ass -- instead of table.ass, more better coding practice...
end
print(table:smellass())