mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-21 01:36:02 +08:00
63 lines
2.5 KiB
Lua
63 lines
2.5 KiB
Lua
-------------------------------------------------------------------------------
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-- Spine Runtimes Software License
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-- Version 2.1
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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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-- You are granted a perpetual, non-exclusive, non-sublicensable and
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-- non-transferable license to install, execute and perform the Spine Runtimes
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-- Software (the "Software") solely for internal use. Without the written
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-- permission of Esoteric Software (typically granted by licensing Spine), you
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-- may not (a) modify, translate, adapt or otherwise create derivative works,
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-- improvements of the Software or develop new applications using the Software
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-- or (b) remove, delete, alter or obscure any trademarks or any copyright,
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-- trademark, patent or other intellectual property or proprietary rights
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-- notices on or in the Software, including any copy thereof. Redistributions
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-- in binary or source form must include this license and terms.
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--
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-- THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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-- IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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-- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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-- EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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-- OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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-- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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-- OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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-- 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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