local api = ...
local ecs = api.ecs

return {
  name = "skeleton",
  enabled = true,

  init = function() 
    --api.ext.skeleton.extendECS()
  end,

  update = function()
    local iui = api.iui
    local backend = api.backend 
    local mainWindow = api.mainWindow
  end,

  load = function() end,

  draw = function(pass) 
    if api.iui.idiom == "vr" then

    else

    end
  end,

  -- ECS API docs: https://bakpakin.github.io/tiny-ecs/doc
  extendECS = function()

    local exampleSystem = ecs.processingSystem({
      updatethread = true,
   -- drawthread = true
      filter = ecs.requireAll('mycomponent'),
      onAdd    = function(self,obj) print_r(obj)  end,
      onRemove = function(self,obj) end,
      process  = function(self,obj) end,
    })
    ecs.addSystem( api.world, exampleSystem )

    -- add example entity object
    local obj = { foo = "bar", mycomponent = { a = 1 } }
    ecs.add( api.world, obj )
    obj.commit() -- notify other systems to update entitycache

  end
}