-------------------------------------------------------------------------------
-- Spine Runtimes Software License
-- Version 2
-- 
-- Copyright (c) 2013, Esoteric Software
-- All rights reserved.
-- 
-- You are granted a perpetual, non-exclusive, non-sublicensable and
-- non-transferable license to install, execute and perform the Spine Runtimes
-- Software (the "Software") solely for internal use. Without the written
-- permission of Esoteric Software, you may not (a) modify, translate, adapt or
-- otherwise create derivative works, improvements of the Software or develop
-- new applications using the Software or (b) remove, delete, alter or obscure
-- any trademarks or any copyright, trademark, patent or other intellectual
-- property or proprietary rights notices on or in the Software, including
-- any copy thereof. Redistributions in binary or source code must include
-- this license and terms. THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY
-- DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-------------------------------------------------------------------------------

local AnimationStateData = {}

function AnimationStateData.new (skeletonData)
	if not skeletonData then error("skeletonData cannot be nil", 2) end

	local self = {
		animationToMixTime = {},
		skeletonData = skeletonData,
		defaultMix = 0
	}

	function self:setMix (fromName, toName, duration)
		if not self.animationToMixTime[fromName] then
			self.animationToMixTime[fromName] = {}
		end
		self.animationToMixTime[fromName][toName] = duration
	end
	
	function self:getMix (fromName, toName)
		local first = self.animationToMixTime[fromName]
		if not first then return self.defaultMix end
		local duration = first[toName]
		if not duration then return defaultMix end
		return duration
	end

	return self
end
return AnimationStateData