spine-runtimes/spine-lua/SkeletonData.lua

-------------------------------------------------------------------------------
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-- Last updated January 1, 2020. Replaces all prior versions.
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-- Copyright (c) 2013-2020, Esoteric Software LLC
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-------------------------------------------------------------------------------

local setmetatable = setmetatable

local SkeletonData = {}
SkeletonData.__index = SkeletonData

function SkeletonData.new ()
	local self = {
		name,
		bones = {},
		slots = {},
		skins = {},
		defaultSkin = nil,
		events = {},
		animations = {},
		ikConstraints = {},
		transformConstraints = {},
		pathConstraints = {},
		x, y, width, height,
		version, hash, imagesPath,
		slotNameIndices = {}
	}
	setmetatable(self, SkeletonData)

	return self
end

function SkeletonData:findBone (boneName)
	if not boneName then error("boneName cannot be nil.", 2) end
	for _,bone in ipairs(self.bones) do
		if bone.name == boneName then return bone end
	end
	return nil
end

function SkeletonData:findBoneIndex (boneName)
	if not boneName then error("boneName cannot be nil.", 2) end
	for i,bone in ipairs(self.bones) do
		if bone.name == boneName then return i end
	end
	return -1
end

function SkeletonData:findSlot (slotName)
	if not slotName then error("slotName cannot be nil.", 2) end
	for i,slot in ipairs(self.slots) do
		if slot.name == slotName then return slot end
	end
	return nil
end

function SkeletonData:findSlotIndex (slotName)
	if not slotName then error("slotName cannot be nil.", 2) end
	return self.slotNameIndices[slotName] or -1
end

function SkeletonData:findSkin (skinName)
	if not skinName then error("skinName cannot be nil.", 2) end
	for _,skin in ipairs(self.skins) do
		if skin.name == skinName then return skin end
	end
	return nil
end

function SkeletonData:findEvent (eventName)
	if not eventName then error("eventName cannot be nil.", 2) end
	for _,event in ipairs(self.events) do
		if event.name == eventName then return event end
	end
	return nil
end

function SkeletonData:findAnimation (animationName)
	if not animationName then error("animationName cannot be nil.", 2) end
	for _,animation in ipairs(self.animations) do
		if animation.name == animationName then return animation end
	end
	return nil
end

function SkeletonData:findIkConstraint (constraintName)
	if not constraintName then error("constraintName cannot be nil.", 2) end
	for _,constraint in ipairs(self.ikConstraints) do
		if constraint.name == constraintName then return constraint end
	end
	return nil
end

function SkeletonData:findTransformConstraint (constraintName)
	if not constraintName then error("constraintName cannot be nil.", 2) end
	for _,constraint in ipairs(self.transformConstraints) do
		if constraint.name == constraintName then return constraint end
	end
	return nil
end

function SkeletonData:findPathConstraint (constraintName)
	if not constraintName then error("constraintName cannot be nil.", 2) end
	for _,constraint in ipairs(self.pathConstraints) do
		if constraint.name == constraintName then return constraint end
	end
	return nil
end

function SkeletonData:findPathConstraintIndex (constraintName)
	if not constraintName then error("constraintName cannot be nil.", 2) end
	for i,constraint in ipairs(self.pathConstraints) do
		if constraint.name == constraintName then return i end
	end
	return -1
end

return SkeletonData