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    Inheritance from multiple classes

    marcelojuniormarcelojunior Member
    edited October 2012 in General questions
    Sorry for my english.

    I need to extend from multiple classes.
    I've created a classe named animate (animate = Core.class())
    And i have to extend these in other classes like: mesh = Core.class(Mesh, animate).
    This is to use the animate methods.

    Thanks. (:
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    Comments

    • marcelojuniormarcelojunior Member
      edited October 2012
      i will, for now, implementing all the methods in all classes :/
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    • asakharovasakharov Member
      Accepted Answer
      As far as I know, Gideros not support multiple inheritance.
      Use aggregation instead of inheritance or try this http://www.lua.org/pil/16.3.html
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    • ar2rsawseenar2rsawseen Maintainer
      Accepted Answer
      Would it help you if animate class was already inheriting from Mesh?
      as:
      animate = Core.class(Mesh)
mesh = Core.class(animate)
      http://appcodingeasy.com/Gideros-Mobile
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    • marcelojuniormarcelojunior Member
      asakharov: I tried to use this example, but without success.

      ar2rsawseen: up would work, but the classes that going to extend the animate are: sprite, mesh and bitmap, then it would not work.

      :/
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    • asakharovasakharov Member
      Mash and Bitmaps - inherits from Sprite.
      So, maybe you just want a Sprite interface to implement the animation?
      If so, then you can write:
      Animation = Core.class()
 
function Animation:init(spriteObject)
  self.Object = spriteObject
  ...
end
 
funtion Animation:MakeWonderfulEffect()
  --operations with self.Object as a Sprite object
  .....
end
 
.......
 
local test1 = Mesh.new(...)
local test2 = Bitmap.new(...)
local test3 = Sprite.new(...)
loca animation1 = Animation.new(test1)
loca animation2 = Animation.new(test2)
loca animation3 = Animation.new(test3)
 
animation1:MakeWonderfulEffect()
animation2:MakeWonderfulEffect()
animation3:MakeWonderfulEffect()
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    • marcelojuniormarcelojunior Member
      Yah, I really liked this example \o/

      I abstracted some gideros classes/methods to make more easy to use.
      Example:
      mesh = Core.class(Mesh)
-- some methods to abstract Mesh class
 
local background = mesh.new()
background:addVertice(0, 0) -- addVertice() make the relation with the Mesh directly
background:addVertice(0, 100)
background:addVertice(100, 100)
background:addVertice(0, 0)
      With your example, i will implement the animation, transformation etc.. classes, for Bitmap, Sprite, Shape, Mesh, and methods like addVertice for example can be used in Shape or Mesh classes, its amazing \o/

      thanks asakharov and ar2rsawseen for Help.
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