mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-21 09:46:02 +08:00
66 lines
2.6 KiB
Lua
66 lines
2.6 KiB
Lua
------------------------------------------------------------------------------
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-- Spine Runtime Software License - Version 1.0
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--
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-- Copyright (c) 2013, Esoteric Software
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms in whole or in part, with
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-- or without modification, are permitted provided that the following conditions
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-- are met:
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--
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-- 1. A Spine Essential, Professional, Enterprise, or Education License must
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-- be purchased from Esoteric Software and the license must remain valid:
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-- http://esotericsoftware.com/
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-- 2. Redistributions of source code must retain this license, which is the
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-- above copyright notice, this declaration of conditions and the following
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-- disclaimer.
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-- 3. Redistributions in binary form must reproduce this license, which is the
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-- above copyright notice, this declaration of conditions and the following
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-- disclaimer, in the documentation and/or other materials provided with the
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-- distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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-- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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-- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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-- ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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-- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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-- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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------------------------------------------------------------------------------
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local AttachmentType = require "spine-lua.AttachmentType"
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local BoundingBoxAttachment = {}
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function BoundingBoxAttachment.new (name)
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if not name then error("name cannot be nil", 2) end
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local self = {
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name = name,
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type = AttachmentType.boundingbox,
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vertices = {}
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}
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function self:computeWorldVertices (x, y, bone, worldVertices)
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x = x + bone.worldX
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y = y + bone.worldY
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local m00 = bone.m00
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local m01 = bone.m01
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local m10 = bone.m10
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local m11 = bone.m11
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local vertices = self.vertices
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local count = #vertices
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for i = 1, count, 2 do
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local px = vertices[i]
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local py = vertices[i + 1]
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worldVertices[i] = px * m00 + py * m01 + x
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worldVertices[i + 1] = px * m10 + py * m11 + y
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end
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end
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return self
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end
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return BoundingBoxAttachment
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