table in love.event.push will lose metatable

[abyssol]

i am using lua oop to program, and i wanna pass an object as the parameter of callback functions to know which object pushed this event, but passed object lost its metatable in callback function, i can only access its data like o.text, no o:getText()

i am trying to use love.event instead of rewriting a new event system, so i have to write an own event sys?

[MrFariator]

Can you share some code, to illustrate the problem you are having? The part about losing the metatable in the process sounds odd.

Do remember that the colon(:) syntax is just syntactical sugar:

Code: Select all

myObject:myFunction(arg1)
-- is the same as
myObject.myFunction(myObject,arg1)

function myObject:myFunction ( arg1 ) -- "self" is inferred
  -- ...function body goes here
end
-- is the same as
function myObject.myFunction ( self, arg1 ) -- "self" is just convention here, if you're passing along objects
  -- ...function body goes here
end

[abyssol]

Can you share some code, to illustrate the problem you are having? The part about losing the metatable in the process sounds odd.

Code: Select all

local o = Human()
love.graphics.print(o:getName()) -- fine
love.event.push('MOVED', o)
-- or a wrapped method o:push('MOVED')
function handleMoved(e)
  if e:getName() -- error
  if e.name -- fine
end

arg 'o' has no metatable in callback function that handles 'MOVED' event.

I think i have to write an own event.push to pass a true reference.

[zorg]

you should not use löve's event mechanics like that; yes, you should implement your own.