sample-MujuJuju/spine-lua/Slot.lua

-------------------------------------------------------------------------------
-- Spine Runtimes Software License
-- Version 2.1
-- 
-- 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 (typically granted by licensing Spine), 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 form 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;
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-- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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-- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-------------------------------------------------------------------------------

local Slot = {}
function Slot.new (slotData, skeleton, bone)
	if not slotData then error("slotData cannot be nil", 2) end
	if not skeleton then error("skeleton cannot be nil", 2) end
	if not bone then error("bone cannot be nil", 2) end

	local self = {
		data = slotData,
		skeleton = skeleton,
		bone = bone,
		r = 1, g = 1, b = 1, a = 1,
		attachment = nil,
		attachmentTime = 0,
		attachmentVertices = nil
	}

	function self:setColor (r, g, b, a)
		self.r = r
		self.g = g
		self.b = b
		self.a = a
	end

	function self:setAttachment (attachment)
		self.attachment = attachment
		self.attachmentTime = self.skeleton.time
	end

	function self:setAttachmentTime (time)
		self.attachmentTime = self.skeleton.time - time
	end

	function self:getAttachmentTime ()
		return self.skeleton.time - self.attachmentTime
	end

	function self:setToSetupPose ()
		local data = self.data

		self:setColor(data.r, data.g, data.b, data.a)

		local attachment
		if data.attachmentName then 
			attachment = self.skeleton:getAttachment(data.name, data.attachmentName)
		end
		self:setAttachment(attachment)
	end

	self:setToSetupPose()

	return self
end
return Slot