mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-21 01:36:02 +08:00
126 lines
4.6 KiB
Lua
126 lines
4.6 KiB
Lua
-------------------------------------------------------------------------------
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-- Spine Runtimes Software License v2.5
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--
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-- Copyright (c) 2013-2016, 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 use, install, execute, and perform the Spine
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-- Runtimes software and derivative works solely for personal or internal
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-- use. Without the written permission of Esoteric Software (see Section 2 of
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-- the Spine Software License Agreement), you may not (a) modify, translate,
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-- adapt, or develop new applications using the Spine Runtimes or otherwise
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-- create derivative works or improvements of the Spine Runtimes or (b) remove,
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-- delete, alter, or obscure any trademarks or any copyright, trademark, patent,
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-- or other intellectual property or proprietary rights notices on or in the
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-- Software, including any copy thereof. Redistributions in binary or source
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-- 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 SOFTWARE 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, BUSINESS INTERRUPTION, OR LOSS OF
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-- USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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-- IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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-- POSSIBILITY OF SUCH DAMAGE.
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-------------------------------------------------------------------------------
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local setmetatable = setmetatable
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local AttachmentType = require "spine-lua.attachments.AttachmentType"
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local VertexAttachment = require "spine-lua.attachments.VertexAttachment"
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local utils = require "spine-lua.utils"
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local Color = require "spine-lua.Color"
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local MeshAttachment = {}
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MeshAttachment.__index = MeshAttachment
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setmetatable(MeshAttachment, { __index = VertexAttachment })
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function MeshAttachment.new (name)
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if not name then error("name cannot be nil", 2) end
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local self = VertexAttachment.new(name, AttachmentType.mesh)
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self.region = nil
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self.path = nil
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self.regionUVs = nil
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self.uvs = nil
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self.triangles = nil
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self.color = Color.newWith(1, 1, 1, 1)
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self.hullLength = 0
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self.parentMesh = nil
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self.inheritDeform = false
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self.tempColor = Color.newWith(1, 1, 1, 1)
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setmetatable(self, MeshAttachment)
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return self
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end
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function MeshAttachment:updateUVs ()
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local u = 0
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local v = 0
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local width = 0
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local height = 0
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if not self.region then
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u = 0
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v = 0
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width = 1
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height = 1
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else
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local region = self.region
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local textureWidth = region.page.width
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local textureHeight = region.page.height
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if region.rotate then
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u = region.u - (region.originalHeight - region.offsetY - region.height) / textureWidth
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v = region.v - (region.originalWidth - region.offsetX - region.width) / textureHeight
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width = region.originalHeight / textureWidth
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height = region.originalWidth / textureHeight
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else
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u = region.u - region.offsetX / textureWidth;
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v = region.v - (region.originalHeight - region.offsetY - region.height) / textureHeight;
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width = region.originalWidth / textureWidth;
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height = region.originalHeight / textureHeight;
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end
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end
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local regionUVs = self.regionUVs
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if not self.uvs or (#self.uvs ~= #regionUVs) then self.uvs = utils.newNumberArray(#regionUVs) end
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local uvs = self.uvs
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if self.region and self.region.rotate then
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local i = 0
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local n = #uvs
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while i < n do
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uvs[i + 1] = u + regionUVs[i + 2] * width;
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uvs[i + 2] = v + height - regionUVs[i + 1] * height;
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i = i + 2
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end
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else
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local i = 0
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local n = #uvs
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while i < n do
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uvs[i + 1] = u + regionUVs[i + 1] * width;
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uvs[i + 2] = v + regionUVs[i + 2] * height;
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i = i + 2
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end
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end
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end
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function MeshAttachment:applyDeform (sourceAttachment)
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return self == sourceAttachment or (self.inheritDeform and self.parentMesh == sourceAttachment)
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end
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function MeshAttachment:setParentMesh (parentMesh)
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self.parentMesh = parentMesh
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if parentMesh then
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self.bones = parentMesh.bones
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self.vertices = parentMesh.vertices
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self.worldVerticesLength = parentMesh.worldVerticesLength
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self.regionUVs = parentMesh.regionUVs
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self.triangles = parentMesh.triangles
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self.hullLength = parentMesh.hullLength
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end
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end
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return MeshAttachment
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