-- This is a more complex animation that has a number of image changes.
-- Note the exported dragon project was modified to not use non-uniform scaling.

local spine = require "spine-corona.spine"

local json = spine.SkeletonJson.new()
json.scale = 0.47
local skeletonData = json:readSkeletonDataFile("examples/dragon/dragon.json")

local skeleton = spine.Skeleton.new(skeletonData)
function skeleton:createImage (attachment)
	return display.newImage("examples/dragon/images/" .. attachment.name .. ".png")
end
skeleton.group.x = 165
skeleton.group.y = 225
skeleton.flipX = false
skeleton.flipY = false
skeleton.debug = true -- Omit or set to false to not draw debug lines on top of the images.
skeleton:setToSetupPose()

-- AnimationStateData defines crossfade durations between animations.
local stateData = spine.AnimationStateData.new(skeletonData)
-- AnimationState has a queue of animations and can apply them with crossfading.
local state = spine.AnimationState.new(stateData)
state:setAnimationByName(0, "flying", true, 0)

local lastTime = 0
local animationTime = 0
Runtime:addEventListener("enterFrame", function (event)
	-- Compute time in seconds since last frame.
	local currentTime = event.time / 1000
	local delta = currentTime - lastTime
	lastTime = currentTime

	-- Update the state with the delta time, apply it, and update the world transforms.
	state:update(delta)
	state:apply(skeleton)
	skeleton:updateWorldTransform()
end)