aseprite/scripts/layers.lua

-- Copyright (C) 2018  David Capello
--
-- This file is released under the terms of the MIT license.
-- Read LICENSE.txt for more information.

do
  local s = Sprite(32, 32)
  assert(#s.layers == 1)

  local a = s.layers[1]
  local b = s:newLayer()
  local c = s:newLayer()

  assert(#s.layers == 3)
  assert(s.layers[1] == a)
  assert(s.layers[2] == b)
  assert(s.layers[3] == c)

  local i = 1
  for k,v in ipairs(s.layers) do
    assert(i == k)
    assert(v == s.layers[k])
    i = i+1
  end

  s:deleteLayer(b)
  assert(#s.layers == 2)
  assert(s.layers[1] == a)
  assert(s.layers[2] == c)
end