Checking code dependencies causes class instance to fire twice

John

I’ve been having problems with code dependency and this setup fires twice. First time it prints nil and the second time it prints "hello"


File: cSpriteTileFloorFlip.lua

cSpriteTileFloorFlip = Core.class(cSpriteTileFloorFlipController) function cSpriteTileFloorFlip:init() self.super.init(self, "hello") end

File: cSpriteTileFloorFlipController.lua

cSpriteTileFloorFlipController = Core.class(Sprite)   function cSpriteTileFloorFlipController:init(message) print(message) end

File:main.lua

cSpriteTileFloorFlip.new()

cSpriteTileFloorFlip.lua code dependency has cSpriteTileFloorFlipController checked and it is this that causing nil

When I change

File: cSpriteTileFloorFlip.lua to

cSpriteTileFloorFlip = Core.class(Sprite) function cSpriteTileFloorFlip:init() end

It prints nil

When I remove the code dependency reference the nil goes away

hgy29

Hi @John,

When you create a class that inherits from another, Gideros automatically calls the superclass init() function before calling the subclass init(), so basically your own call to self.super.init() is redundant.

The subclass should be declared as follow:

cSpriteTileFloorFlip = Core.class(cSpriteTileFloorFlipController, function() return "hello" end) function cSpriteTileFloorFlip:init() end

Here, the second parameter of Core.class is a function that takes the arguments given to the new() calls of the subclass and returns the arguments that should be used to create the superclass instance.