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spine-lua: bounding boxes.

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This commit is contained in:
NathanSweet 2013-10-13 17:08:26 +02:00
parent a793d2bfa6
commit ed4cf32726
14 changed files with 478 additions and 113 deletions
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27
spine-corona/examples/spineboy.lua
View File

@ -17,8 +17,11 @@ skeleton.group.y = 325
skeleton.flipX = false
skeleton.flipY = false
skeleton.debug = true -- Omit or set to false to not draw debug lines on top of the images.
skeleton.debugAabb = true
skeleton:setToSetupPose()
local bounds = spine.SkeletonBounds.new()
-- AnimationStateData defines crossfade durations between animations.
local stateData = spine.AnimationStateData.new(skeletonData)
stateData:setMix("walk", "jump", 0.2)
@ -44,16 +47,38 @@ state.onEvent = function (trackIndex, event)
end
local lastTime = 0
local animationTime = 0
local touchX = 999999
local touchY = 999999
local headSlot = skeleton:findSlot("head")
Runtime:addEventListener("enterFrame", function (event)
-- Compute time in seconds since last frame.
local currentTime = event.time / 1000
local delta = currentTime - lastTime
lastTime = currentTime
-- Bounding box hit detection.
bounds:update(skeleton, true)
if bounds:containsPoint(touchX, touchY) then
headSlot.g = 0;
headSlot.b = 0;
else
headSlot.g = 1;
headSlot.b = 1;
end
-- Update the state with the delta time, apply it, and update the world transforms.
state:update(delta)
state:apply(skeleton)
skeleton:updateWorldTransform()
end)
Runtime:addEventListener("touch", function (event)
if event.phase ~= "ended" and event.phase ~= "cancelled" then
-- Make the coordinates relative to the skeleton's group.
touchX = event.x - skeleton.group.x
touchY = skeleton.group.y - event.y
else
touchX = 999999
touchY = 999999
end
end)

200
spine-corona/spine-corona/spine.lua
View File

@ -43,12 +43,14 @@ spine.RegionAttachment = require "spine-lua.RegionAttachment"
spine.Skeleton = require "spine-lua.Skeleton"
spine.Bone = require "spine-lua.Bone"
spine.Slot = require "spine-lua.Slot"
spine.AttachmentType = require "spine-lua.AttachmentType"
spine.AttachmentLoader = require "spine-lua.AttachmentLoader"
spine.Animation = require "spine-lua.Animation"
spine.AnimationStateData = require "spine-lua.AnimationStateData"
spine.AnimationState = require "spine-lua.AnimationState"
spine.EventData = require "spine-lua.EventData"
spine.Event = require "spine-lua.Event"
spine.SkeletonBounds = require "spine-lua.SkeletonBounds"
spine.utils.readFile = function (fileName, base)
if not base then base = system.ResourceDirectory end
@ -69,115 +71,123 @@ spine.Skeleton.failed = {} -- Placeholder for an image that failed to load.
spine.Skeleton.new_super = spine.Skeleton.new
function spine.Skeleton.new (skeletonData, group)
-- Skeleton extends a group.
local self = spine.Skeleton.new_super(skeletonData)
self.group = group or display.newGroup()
self.images = {}
-- createImage can customize where images are found.
-- Customizes where images are found.
function self:createImage (attachment)
return display.newImage(attachment.name .. ".png")
end
-- Customizes what happens when an image changes, return false to recreate the image.
function self:modifyImage (attachment)
return false
end
-- updateWorldTransform positions images.
local updateWorldTransform_super = self.updateWorldTransform
function self:updateWorldTransform ()
updateWorldTransform_super(self)
local images = self.images
local skeletonR, skeletonG, skeletonB, skeletonA = self.r, self.g, self.b, self.a
local skeletonR, skeletonG, skeletonB, skeletonA = self.r * 255, self.g * 255, self.b * 255, self.a
for i,slot in ipairs(self.drawOrder) do
local attachment = slot.attachment
local image = images[slot]
if not attachment then -- Attachment is gone, remove the image.
if image then
image:removeSelf()
images[slot] = nil
end
else
if image and image.attachment ~= attachment then -- Attachment image has changed.
if self.modifyImage then
self:modifyImage(image, attachment)
image.lastR, image.lastG, image.lastB, image.lastA = nil, nil, nil, nil
image.attachment = attachment
else -- If no modifier supplied just remove the image and it will be recreated.
if attachment.type == spine.AttachmentType.region then
local image = images[slot]
if not attachment then -- Attachment is gone, remove the image.
if image then
image:removeSelf()
images[slot] = nil
image = nil
end
end
if not image then -- Create new image.
image = self:createImage(attachment)
if image then
image.attachment = attachment
image:setReferencePoint(display.CenterReferencePoint)
image.width = attachment.width
image.height = attachment.height
else
print("Error creating image: " .. attachment.name)
image = spine.Skeleton.failed
end
if slot.data.additiveBlending then image.blendMode = "add" end
images[slot] = image
end
-- Position image based on attachment and bone.
if image ~= spine.Skeleton.failed then
local flipX, flipY = ((self.flipX and -1) or 1), ((self.flipY and -1) or 1)
local x = slot.bone.worldX + attachment.x * slot.bone.m00 + attachment.y * slot.bone.m01
local y = -(slot.bone.worldY + attachment.x * slot.bone.m10 + attachment.y * slot.bone.m11)
if not image.lastX then
image.x, image.y = x, y
image.lastX, image.lastY = x, y
elseif image.lastX ~= x or image.lastY ~= y then
image:translate(x - image.lastX, y - image.lastY)
image.lastX, image.lastY = x, y
end
local xScale = attachment.scaleX * flipX
local yScale = attachment.scaleY * flipY
-- Fix scaling when attachment is rotated 90 or -90.
local rotation = math.abs(attachment.rotation) % 180
if (rotation == 90) then
xScale = xScale * slot.bone.worldScaleY
yScale = yScale * slot.bone.worldScaleX
else
xScale = xScale * slot.bone.worldScaleX
yScale = yScale * slot.bone.worldScaleY
if rotation ~= 0 and xScale ~= yScale and not image.rotationWarning then
image.rotationWarning = true
print("WARNING: Non-uniform bone scaling with attachments not rotated to\n"
.." cardinal angles will not work as expected with Corona.\n"
.." Bone: "..slot.bone.data.name..", slot: "..slot.data.name..", attachment: "..attachment.name)
else
if image and image.attachment ~= attachment then -- Attachment image has changed.
if self:modifyImage(image, attachment) then
image.lastR, image.lastA = nil, nil
image.attachment = attachment
else -- If not modified, remove the image and it will be recreated.
image:removeSelf()
images[slot] = nil
image = nil
end
end
if not image.lastScaleX then
image.xScale, image.yScale = xScale, yScale
image.lastScaleX, image.lastScaleY = xScale, yScale
elseif image.lastScaleX ~= xScale or image.lastScaleY ~= yScale then
image:scale(xScale / image.lastScaleX, yScale / image.lastScaleY)
image.lastScaleX, image.lastScaleY = xScale, yScale
if not image then -- Create new image.
image = self:createImage(attachment)
if image then
image.attachment = attachment
image:setReferencePoint(display.CenterReferencePoint)
image.width = attachment.width
image.height = attachment.height
else
print("Error creating image: " .. attachment.name)
image = spine.Skeleton.failed
end
if slot.data.additiveBlending then image.blendMode = "add" end
images[slot] = image
end
-- Position image based on attachment and bone.
if image ~= spine.Skeleton.failed then
local flipX, flipY = ((self.flipX and -1) or 1), ((self.flipY and -1) or 1)
rotation = -(slot.bone.worldRotation + attachment.rotation) * flipX * flipY
if not image.lastRotation then
image.rotation = rotation
image.lastRotation = rotation
elseif rotation ~= image.lastRotation then
image:rotate(rotation - image.lastRotation)
image.lastRotation = rotation
end
local x = slot.bone.worldX + attachment.x * slot.bone.m00 + attachment.y * slot.bone.m01
local y = -(slot.bone.worldY + attachment.x * slot.bone.m10 + attachment.y * slot.bone.m11)
if not image.lastX then
image.x, image.y = x, y
image.lastX, image.lastY = x, y
elseif image.lastX ~= x or image.lastY ~= y then
image:translate(x - image.lastX, y - image.lastY)
image.lastX, image.lastY = x, y
end
local r, g, b, a = skeletonR * slot.r, skeletonG * slot.g, skeletonB * slot.b, skeletonA * slot.a
if image.lastR ~= r or image.lastG ~= g or image.lastB ~= b or not image.lastR then
image:setFillColor(r, g, b)
image.lastR, image.lastG, image.lastB = r, g, b
local xScale = attachment.scaleX * flipX
local yScale = attachment.scaleY * flipY
-- Fix scaling when attachment is rotated 90 or -90.
local rotation = math.abs(attachment.rotation) % 180
if (rotation == 90) then
xScale = xScale * slot.bone.worldScaleY
yScale = yScale * slot.bone.worldScaleX
else
xScale = xScale * slot.bone.worldScaleX
yScale = yScale * slot.bone.worldScaleY
if rotation ~= 0 and xScale ~= yScale and not image.rotationWarning then
image.rotationWarning = true
print("WARNING: Non-uniform bone scaling with attachments not rotated to\n"
.." cardinal angles will not work as expected with Corona.\n"
.." Bone: "..slot.bone.data.name..", slot: "..slot.data.name..", attachment: "..attachment.name)
end
end
if not image.lastScaleX then
image.xScale, image.yScale = xScale, yScale
image.lastScaleX, image.lastScaleY = xScale, yScale
elseif image.lastScaleX ~= xScale or image.lastScaleY ~= yScale then
image:scale(xScale / image.lastScaleX, yScale / image.lastScaleY)
image.lastScaleX, image.lastScaleY = xScale, yScale
end
rotation = -(slot.bone.worldRotation + attachment.rotation) * flipX * flipY
if not image.lastRotation then
image.rotation = rotation
image.lastRotation = rotation
elseif rotation ~= image.lastRotation then
image:rotate(rotation - image.lastRotation)
image.lastRotation = rotation
end
local r, g, b = skeletonR * slot.r, skeletonG * slot.g, skeletonB * slot.b
if image.lastR ~= r or image.lastG ~= g or image.lastB ~= b or not image.lastR then
image:setFillColor(r, g, b)
image.lastR, image.lastG, image.lastB = r, g, b
end
local a = skeletonA * slot.a
if a and (image.lastA ~= a or not image.lastA) then
image.lastA = a
image.alpha = image.lastA
end
self.group:insert(image)
end
if a and (image.lastA ~= a or not image.lastA) then
image.lastA = a / 255
image.alpha = image.lastA
end
self.group:insert(image)
end
end
end
@ -214,6 +224,24 @@ function spine.Skeleton.new (skeletonData, group)
self.group:insert(bone.circle)
end
end
if self.debugAabb then
if not self.bounds then
self.bounds = spine.SkeletonBounds.new()
self.boundsRect = display.newRect(self.group, 0, 0, 0, 0)
self.boundsRect:setFillColor(0, 0, 0, 0)
self.boundsRect.strokeWidth = 1
self.boundsRect:setStrokeColor(0, 255, 0, 255)
end
self.bounds:update(self, true)
local width = self.bounds:getWidth()
local height = self.bounds:getHeight()
self.boundsRect.x = self.bounds.minX + width / 2
self.boundsRect.y = -self.bounds.minY - height / 2
self.boundsRect.width = width
self.boundsRect.height = height
self.group:insert(self.boundsRect)
end
end
return self
end

12
spine-lua/AttachmentLoader.lua
View File

@ -31,22 +31,22 @@
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
local AttachmentType = require "spine-lua.AttachmentType"
local RegionAttachment = require "spine-lua.RegionAttachment"
local BoundingBoxAttachment = require "spine-lua.BoundingBoxAttachment"
local AttachmentLoader = {
failed = {},
ATTACHMENT_REGION = "region",
ATTACHMENT_BOUNDINGBOX = "boundingbox",
failed = {}
}
function AttachmentLoader.new ()
local self = {}
function self:newAttachment (type, name)
if type == AttachmentLoader.ATTACHMENT_REGION then
if type == AttachmentType.region then
return RegionAttachment.new(name)
end
if type == AttachmentLoader.ATTACHMENT_BOUNDINGBOX then
return nil -- BOZO - Implement bounding boxes.
if type == AttachmentType.boundingbox then
return BoundingBoxAttachment.new(name)
end
error("Unknown attachment type: " .. type .. " (" .. name .. ")")
end

38
spine-lua/AttachmentType.lua Normal file
View File

@ -0,0 +1,38 @@
------------------------------------------------------------------------------
-- Spine Runtime Software License - Version 1.0
--
-- Copyright (c) 2013, Esoteric Software
-- All rights reserved.
--
-- Redistribution and use in source and binary forms in whole or in part, with
-- or without modification, are permitted provided that the following conditions
-- are met:
--
-- 1. A Spine Essential, Professional, Enterprise, or Education License must
-- be purchased from Esoteric Software and the license must remain valid:
-- http://esotericsoftware.com/
-- 2. Redistributions of source code must retain this license, which is the
-- above copyright notice, this declaration of conditions and the following
-- disclaimer.
-- 3. Redistributions in binary form must reproduce this license, which is the
-- above copyright notice, this declaration of conditions and the following
-- disclaimer, in the documentation and/or other materials provided with the
-- distribution.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
local AttachmentType = {
region = 0,
boundingbox = 1
}
return AttachmentType

6
spine-lua/Bone.lua
View File

@ -41,7 +41,11 @@ function Bone.new (data, parent)
parent = parent,
x = 0, y = 0,
rotation = 0,
scaleX = 1, scaleY = 1
scaleX = 1, scaleY = 1,
m00 = 0, m01 = 0, worldX = 0, -- a b x
m10 = 0, m11 = 0, worldY = 0, -- c d y
worldRotation = 0,
worldScaleX = 1, worldScaleY = 1,
}
function self:updateWorldTransform (flipX, flipY)

8
spine-lua/BoneData.lua
View File

@ -37,7 +37,13 @@ function BoneData.new (name, parent)
local self = {
name = name,
parent = parent
parent = parent,
length = 0,
x = 0, y = 0,
rotation = 0,
scaleX = 1, scaleY = 1,
inheritScale = true,
inheritRotation = true
}
return self

65
spine-lua/BoundingBoxAttachment.lua Normal file
View File

@ -0,0 +1,65 @@
------------------------------------------------------------------------------
-- Spine Runtime Software License - Version 1.0
--
-- Copyright (c) 2013, Esoteric Software
-- All rights reserved.
--
-- Redistribution and use in source and binary forms in whole or in part, with
-- or without modification, are permitted provided that the following conditions
-- are met:
--
-- 1. A Spine Essential, Professional, Enterprise, or Education License must
-- be purchased from Esoteric Software and the license must remain valid:
-- http://esotericsoftware.com/
-- 2. Redistributions of source code must retain this license, which is the
-- above copyright notice, this declaration of conditions and the following
-- disclaimer.
-- 3. Redistributions in binary form must reproduce this license, which is the
-- above copyright notice, this declaration of conditions and the following
-- disclaimer, in the documentation and/or other materials provided with the
-- distribution.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
local AttachmentType = require "spine-lua.AttachmentType"
local BoundingBoxAttachment = {}
function BoundingBoxAttachment.new (name)
if not name then error("name cannot be nil", 2) end
local self = {
name = name,
type = AttachmentType.boundingbox,
vertices = {}
}
function self:computeWorldVertices (x, y, bone, worldVertices)
x = x + bone.worldX
y = y + bone.worldY
local m00 = bone.m00
local m01 = bone.m01
local m10 = bone.m10
local m11 = bone.m11
local vertices = self.vertices
local count = #vertices
for i = 1, count, 2 do
local px = vertices[i]
local py = vertices[i + 1]
worldVertices[i] = px * m00 + py * m01 + x
worldVertices[i + 1] = px * m10 + py * m11 + y
end
end
return self
end
return BoundingBoxAttachment

5
spine-lua/RegionAttachment.lua
View File

@ -31,12 +31,15 @@
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
local AttachmentType = require "spine-lua.AttachmentType"
local RegionAttachment = {}
function RegionAttachment.new (name)
if not name then error("name cannot be nil", 2) end
local self = {
name = name
name = name,
type = AttachmentType.region
}
return self

3
spine-lua/Skeleton.lua
View File

@ -45,7 +45,8 @@ function Skeleton.new (skeletonData)
slots = {},
slotsByName = {},
drawOrder = {},
r = 1, g = 1, b = 1, a = 1
r = 1, g = 1, b = 1, a = 1,
x = 0, y = 0
}
function self:updateWorldTransform ()

185
spine-lua/SkeletonBounds.lua Normal file
View File

@ -0,0 +1,185 @@
------------------------------------------------------------------------------
-- Spine Runtime Software License - Version 1.0
--
-- Copyright (c) 2013, Esoteric Software
-- All rights reserved.
--
-- Redistribution and use in source and binary forms in whole or in part, with
-- or without modification, are permitted provided that the following conditions
-- are met:
--
-- 1. A Spine Essential, Professional, Enterprise, or Education License must
-- be purchased from Esoteric Software and the license must remain valid:
-- http://esotericsoftware.com/
-- 2. Redistributions of source code must retain self license, which is the
-- above copyright notice, self declaration of conditions and the following
-- disclaimer.
-- 3. Redistributions in binary form must reproduce self license, which is the
-- above copyright notice, self declaration of conditions and the following
-- disclaimer, in the documentation and/or other materials provided with the
-- distribution.
--
-- self SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF self
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------------------------------------------------------------------
local AttachmentType = require "spine-lua.AttachmentType"
local utils = require "spine-lua.utils"
local SkeletonBounds = {}
function SkeletonBounds.new ()
local self = {
polygons = {},
boundingBoxes = {},
minX = 0, minY = 0, maxX = 0, maxY = 0
}
function aabbCompute ()
local polygons = self.polygons
local minX, minY, maxX, maxY = 9999999, 9999999, -9999999, -9999999
for i,vertices in ipairs(polygons) do
local count = #vertices
for ii = 1, count, 2 do
local x = vertices[ii]
local y = vertices[ii + 1]
minX = math.min(minX, x)
minY = math.min(minY, y)
maxX = math.max(maxX, x)
maxY = math.max(maxY, y)
end
end
self.minX = minX
self.minY = minY
self.maxX = maxX
self.maxY = maxY
end
function self:update (skeleton, updateAabb)
local x = skeleton.x
local y = skeleton.y
local polygons = {}
self.polygons = polygons
local boundingBoxes = {}
self.boundingBoxes = boundingBoxes
for i,slot in ipairs(skeleton.slots) do
local boundingBox = slot.attachment
if boundingBox.type == AttachmentType.boundingbox then
table.insert(boundingBoxes, boundingBox)
local polygon = {}
table.insert(polygons, polygon)
boundingBox:computeWorldVertices(x, y, slot.bone, polygon)
end
end
if updateAabb then aabbCompute() end
end
function self:aabbContainsPoint (x, y)
return x >= self.minX and x <= self.maxX and y >= self.minY and y <= self.maxY
end
function self:aabbIntersectsSegment (x1, y1, x2, y2)
local minX, minY, maxX, maxY = self.minX, self.minY, self.maxX, self.maxY
if (x1 <= minX and x2 <= minX) or (y1 <= minY and y2 <= minY) or (x1 >= maxX and x2 >= maxX) or (y1 >= maxY and y2 >= maxY) then
return false
end
local m = (y2 - y1) / (x2 - x1)
local y = m * (minX - x1) + y1
if y > minY and y < maxY then return true end
y = m * (maxX - x1) + y1
if y > minY and y < maxY then return true end
local x = (minY - y1) / m + x1
if x > minX and x < maxX then return true end
x = (maxY - y1) / m + x1
if x > minX and x < maxX then return true end
return false
end
function self:aabbIntersectsSkeleton (bounds)
return self.minX < bounds.maxX and self.maxX > bounds.minX and self.minY < bounds.maxY and self.maxY > bounds.minY
end
function self:containsPoint (x, y)
for i,polygon in ipairs(self.polygons) do
if self:polygonContainsPoint(polygon, x, y) then return self.boundingBoxes[i] end
end
return nil
end
function self:intersectsSegment (x1, y1, x2, y2)
for i,polygon in ipairs(self.polygons) do
if self:polygonIntersectsSegment(polygon, x1, y1, x2, y2) then return boundingBoxes[i] end
end
return nil
end
function self:polygonContainsPoint (polygon, x, y)
local nn = #polygon
local prevIndex = nn - 1
local inside = false
for ii = 1, nn, 2 do
local vertexY = polygon[ii + 1]
local prevY = polygon[prevIndex + 1]
if (vertexY < y and prevY >= y) or (prevY < y and vertexY >= y) then
local vertexX = polygon[ii]
if vertexX + (y - vertexY) / (prevY - vertexY) * (polygon[prevIndex] - vertexX) < x then inside = not inside end
end
prevIndex = ii
end
return inside
end
function self:polygonIntersectsSegment (polygon, x1, y1, x2, y2)
local nn = polygon.length
local width12, height12 = x1 - x2, y1 - y2
local det1 = x1 * y2 - y1 * x2
local x3, y3 = polygon[nn - 2], polygon[nn - 1]
for ii = 1, nn, 2 do
local x4, y4 = polygon[ii], polygon[ii + 1]
local det2 = x3 * y4 - y3 * x4
local width34, height34 = x3 - x4, y3 - y4
local det3 = width12 * height34 - height12 * width34
local x = (det1 * width34 - width12 * det2) / det3
if ((x >= x3 and x <= x4) or (x >= x4 and x <= x3)) and ((x >= x1 and x <= x2) or (x >= x2 and x <= x1)) then
local y = (det1 * height34 - height12 * det2) / det3
if ((y >= y3 and y <= y4) or (y >= y4 and y <= y3)) and ((y >= y1 and y <= y2) or (y >= y2 and y <= y1)) then return true end
end
x3 = x4
y3 = y4
end
return false
end
function self:getPolygon (attachment)
local index = spine.utils.indexOf(self.boundingBoxes, attachment)
if index == -1 then
return nil
else
return self.polygons[index]
end
end
function self:getWidth ()
return self.maxX - self.minX
end
function self:getHeight ()
return self.maxY - self.minY
end
return self
end
return SkeletonBounds

25
spine-lua/SkeletonJson.lua
View File

@ -39,6 +39,7 @@ local AttachmentLoader = require "spine-lua.AttachmentLoader"
local Animation = require "spine-lua.Animation"
local EventData = require "spine-lua.EventData"
local Event = require "spine-lua.Event"
local AttachmentType = require "spine-lua.AttachmentType"
local TIMELINE_SCALE = "scale"
local TIMELINE_ROTATE = "rotate"
@ -170,17 +171,25 @@ function SkeletonJson.new (attachmentLoader)
readAttachment = function (name, map, scale)
name = map["name"] or name
local attachment
local type = map["type"] or AttachmentLoader.ATTACHMENT_REGION
local type = AttachmentType[map["type"] or "region"]
attachment = attachmentLoader:newAttachment(type, name)
if not attachment then return nil end
attachment.x = (map["x"] or 0) * scale
attachment.y = (map["y"] or 0) * scale
attachment.scaleX = (map["scaleX"] or 1)
attachment.scaleY = (map["scaleY"] or 1)
attachment.rotation = (map["rotation"] or 0)
attachment.width = map["width"] * scale
attachment.height = map["height"] * scale
if type == AttachmentType.region then
attachment.x = (map["x"] or 0) * scale
attachment.y = (map["y"] or 0) * scale
attachment.scaleX = (map["scaleX"] or 1)
attachment.scaleY = (map["scaleY"] or 1)
attachment.rotation = (map["rotation"] or 0)
attachment.width = map["width"] * scale
attachment.height = map["height"] * scale
elseif type == AttachmentType.boundingbox then
local vertices = map["vertices"]
for i,point in ipairs(vertices) do
table.insert(attachment.vertices, vertices[i] * scale)
end
end
return attachment
end

3
spine-lua/Slot.lua
View File

@ -40,7 +40,8 @@ function Slot.new (slotData, skeleton, bone)
local self = {
data = slotData,
skeleton = skeleton,
bone = bone
bone = bone,
r = 1, g = 1, b = 1, a = 1
}
function self:setColor (r, g, b, a)

5
spine-lua/SlotData.lua
View File

@ -38,7 +38,8 @@ function SlotData.new (name, boneData)
local self = {
name = name,
boneData = boneData
boneData = boneData,
r = 1, g = 1, b = 1, a = 1
}
function self:setColor (r, g, b, a)
@ -48,8 +49,6 @@ function SlotData.new (name, boneData)
self.a = a
end
self:setColor(255, 255, 255, 255)
return self;
end
return SlotData

9
spine-lua/utils.lua
View File

@ -35,7 +35,6 @@ local utils = {}
function tablePrint (tt, indent, done)
done = done or {}
indent = indent or 0
for key, value in pairs(tt) do
local spaces = string.rep (" ", indent)
if type(value) == "table" and not done [value] then
@ -51,12 +50,14 @@ function tablePrint (tt, indent, done)
end
function utils.print (value, indent, done)
indent = indent or 0
if "nil" == type(value) then
print(tostring(nil))
elseif "table" == type(value) then
print("{")
tablePrint(value, 2)
print("}")
local spaces = string.rep (" ", indent)
print(spaces .. "{")
tablePrint(value, indent + 2)
print(spaces .. "}")
elseif "string" == type(value) then
print("\"" .. value .. "\"")
else