Question

Say, If i have two or more files using the middleclass extension more or less like this. I omitted some of the obvious middleclass implementation code.

File A:

function Battlefield:initialize()
    self.varA
    self.varB
end

function Battlefield:attack()
   --I want to use self.varA here
end

File B

BattlefieldInstance = Battlefield:new()

function doStuff()
    BattlefieldInstance:attack()
end

I know this structure more or less works because i already use it plenty on my project, but my problem is that i want to use these self variables. Normally a self instance is passed between functions inside the same file to do this, but when i do it from another file i obviously can’t pass self, because it would be another self, and i need the self from the file where the function is located. Sorry if my question is a bit confusing. I’ll try and clarify any questions there are.

Answer 1

‘self’ is a keyword that means ‘the current object’. So in the case of Battlefield functions, ‘self.varA’ inside the function is the same variable as ‘Battlefield.varA’ outside the function.