mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-20 17:26:01 +08:00
1ea57900c5
Bugs: * ffd animation was ignoring last frame. Lua has 1-based arrays, so last frame is `frames[#frames]`, not `frames[#frames - 1]` * nil exception when accessing array lenght after it's confirmed nil. First we check if `not vertices` and in next statement we're trying to check for it's length, which causes exception. This code is logically equivalent to code before but avoids checking potentially nil array for length.
779 lines
22 KiB
Lua
779 lines
22 KiB
Lua
-------------------------------------------------------------------------------
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-- Spine Runtimes Software License
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-- Version 2.3
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--
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-- Copyright (c) 2013-2015, 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 (the "Software") and derivative works solely for personal
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-- or internal use. Without the written permission of Esoteric Software (see
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-- Section 2 of the Spine Software License Agreement), you may not (a) modify,
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-- translate, adapt or otherwise create derivative works, improvements of the
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-- Software or develop new applications using the Software 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; 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 Animation = {}
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function Animation.new (name, timelines, duration)
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if not timelines then error("timelines cannot be nil", 2) end
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local self = {
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name = name,
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timelines = timelines,
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duration = duration
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}
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function self:apply (skeleton, lastTime, time, loop, events)
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if not skeleton then error("skeleton cannot be nil.", 2) end
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if loop and duration > 0 then
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time = time % self.duration
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lastTime = lastTime % self.duration
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end
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for i,timeline in ipairs(self.timelines) do
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timeline:apply(skeleton, lastTime, time, events, 1)
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end
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end
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function self:mix (skeleton, lastTime, time, loop, events, alpha)
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if not skeleton then error("skeleton cannot be nil.", 2) end
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if loop and duration > 0 then
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time = time % self.duration
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lastTime = lastTime % self.duration
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end
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for i,timeline in ipairs(self.timelines) do
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timeline:apply(skeleton, lastTime, time, events, alpha)
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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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local function binarySearch (values, target, step)
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local low = 0
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local high = math.floor((#values + 1) / step - 2)
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if high == 0 then return step end
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local current = math.floor(high / 2)
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while true do
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if values[(current + 1) * step] <= target then
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low = current + 1
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else
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high = current
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end
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if low == high then return (low + 1) * step end
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current = math.floor((low + high) / 2)
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end
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end
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local function binarySearch1 (values, target)
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local low = 0
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local high = math.floor(#values - 1)
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if high == 0 then return 1 end
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local current = math.floor(high / 2)
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while true do
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if values[current + 1] <= target then
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low = current + 1
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else
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high = current
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end
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if low == high then return low + 1 end
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current = math.floor((low + high) / 2)
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end
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end
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local function linearSearch (values, target, step)
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for i = 0, #values, step do
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if (values[i] > target) then return i end
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end
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return -1
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end
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Animation.CurveTimeline = {}
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function Animation.CurveTimeline.new ()
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local LINEAR = 0
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local STEPPED = 1
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local BEZIER = 2;
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local BEZIER_SEGMENTS = 10
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local BEZIER_SIZE = BEZIER_SEGMENTS * 2 - 1
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local self = {
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curves = {} -- type, x, y, ...
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}
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function self:setLinear (frameIndex)
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self.curves[frameIndex * BEZIER_SIZE] = LINEAR
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end
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function self:setStepped (frameIndex)
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self.curves[frameIndex * BEZIER_SIZE] = STEPPED
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end
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function self:setCurve (frameIndex, cx1, cy1, cx2, cy2)
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local subdiv1 = 1 / BEZIER_SEGMENTS
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local subdiv2 = subdiv1 * subdiv1
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local subdiv3 = subdiv2 * subdiv1;
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local pre1 = 3 * subdiv1
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local pre2 = 3 * subdiv2
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local pre4 = 6 * subdiv2
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local pre5 = 6 * subdiv3
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local tmp1x = -cx1 * 2 + cx2
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local tmp1y = -cy1 * 2 + cy2
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local tmp2x = (cx1 - cx2) * 3 + 1
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local tmp2y = (cy1 - cy2) * 3 + 1
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local dfx = cx1 * pre1 + tmp1x * pre2 + tmp2x * subdiv3
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local dfy = cy1 * pre1 + tmp1y * pre2 + tmp2y * subdiv3
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local ddfx = tmp1x * pre4 + tmp2x * pre5
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local ddfy = tmp1y * pre4 + tmp2y * pre5;
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local dddfx = tmp2x * pre5
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local dddfy = tmp2y * pre5
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local i = frameIndex * BEZIER_SIZE
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local curves = self.curves
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curves[i] = BEZIER
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i = i + 1
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local x = dfx
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local y = dfy
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local n = i + BEZIER_SIZE - 1
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while i < n do
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curves[i] = x
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curves[i + 1] = y
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dfx = dfx + ddfx
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dfy = dfy + ddfy
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ddfx = ddfx + dddfx
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ddfy = ddfy + dddfy
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x = x + dfx
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y = y + dfy
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i = i + 2
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end
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end
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function self:getCurvePercent (frameIndex, percent)
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local curves = self.curves
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local i = frameIndex * BEZIER_SIZE
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local type = curves[i]
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if type == LINEAR then return percent end
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if type == STEPPED then return 0 end
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i = i + 1
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local x
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local n = i + BEZIER_SIZE - 1
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local start = i
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while i < n do
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x = curves[i]
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if x >= percent then
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local prevX, prevY
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if i == start then
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prevX = 0
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prevY = 0
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else
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prevX = curves[i - 2]
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prevY = curves[i - 1]
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end
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return prevY + (curves[i + 1] - prevY) * (percent - prevX) / (x - prevX)
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end
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i = i + 2
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end
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local y = curves[i - 1]
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return y + (1 - y) * (percent - x) / (1 - x) -- Last point is 1,1.
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end
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return self
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end
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Animation.RotateTimeline = {}
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function Animation.RotateTimeline.new ()
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local PREV_FRAME_TIME = -2
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local FRAME_VALUE = 1
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local self = Animation.CurveTimeline.new()
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self.frames = {}
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self.boneIndex = -1
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function self:getDuration ()
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return self.frames[#self.frames - 1]
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end
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function self:getFrameCount ()
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return (#self.frames + 1) / 2
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end
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function self:setFrame (frameIndex, time, value)
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frameIndex = frameIndex * 2
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self.frames[frameIndex] = time
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self.frames[frameIndex + 1] = value
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end
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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local frames = self.frames
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if time < frames[0] then return end -- Time is before first frame.
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local bone = skeleton.bones[self.boneIndex]
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if time >= frames[#frames - 1] then -- Time is after last frame.
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local amount = bone.data.rotation + frames[#frames] - bone.rotation
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while amount > 180 do
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amount = amount - 360
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end
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while amount < -180 do
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amount = amount + 360
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end
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bone.rotation = bone.rotation + amount * alpha
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return
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end
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-- Interpolate between the last frame and the current frame.
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local frameIndex = binarySearch(frames, time, 2)
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local prevFrameValue = frames[frameIndex - 1]
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local frameTime = frames[frameIndex]
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local percent = 1 - (time - frameTime) / (frames[frameIndex + PREV_FRAME_TIME] - frameTime)
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if percent < 0 then percent = 0 elseif percent > 1 then percent = 1 end
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percent = self:getCurvePercent(frameIndex / 2 - 1, percent)
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local amount = frames[frameIndex + FRAME_VALUE] - prevFrameValue
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while amount > 180 do
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amount = amount - 360
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end
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while amount < -180 do
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amount = amount + 360
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end
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amount = bone.data.rotation + (prevFrameValue + amount * percent) - bone.rotation
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while amount > 180 do
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amount = amount - 360
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end
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while amount < -180 do
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amount = amount + 360
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end
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bone.rotation = bone.rotation + amount * alpha
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end
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return self
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end
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Animation.TranslateTimeline = {}
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function Animation.TranslateTimeline.new ()
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local PREV_FRAME_TIME = -3
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local FRAME_X = 1
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local FRAME_Y = 2
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local self = Animation.CurveTimeline.new()
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self.frames = {}
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self.boneIndex = -1
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function self:getDuration ()
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return self.frames[#self.frames - 2]
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end
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function self:getFrameCount ()
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return (#self.frames + 1) / 3
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end
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function self:setFrame (frameIndex, time, x, y)
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frameIndex = frameIndex * 3
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self.frames[frameIndex] = time
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self.frames[frameIndex + 1] = x
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self.frames[frameIndex + 2] = y
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end
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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local frames = self.frames
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if time < frames[0] then return end -- Time is before first frame.
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local bone = skeleton.bones[self.boneIndex]
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if time >= frames[#frames - 2] then -- Time is after last frame.
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bone.x = bone.x + (bone.data.x + frames[#frames - 1] - bone.x) * alpha
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bone.y = bone.y + (bone.data.y + frames[#frames] - bone.y) * alpha
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return
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end
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-- Interpolate between the last frame and the current frame.
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local frameIndex = binarySearch(frames, time, 3)
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local prevFrameX = frames[frameIndex - 2]
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local prevFrameY = frames[frameIndex - 1]
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local frameTime = frames[frameIndex]
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local percent = 1 - (time - frameTime) / (frames[frameIndex + PREV_FRAME_TIME] - frameTime)
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if percent < 0 then percent = 0 elseif percent > 1 then percent = 1 end
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percent = self:getCurvePercent(frameIndex / 3 - 1, percent)
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bone.x = bone.x + (bone.data.x + prevFrameX + (frames[frameIndex + FRAME_X] - prevFrameX) * percent - bone.x) * alpha
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bone.y = bone.y + (bone.data.y + prevFrameY + (frames[frameIndex + FRAME_Y] - prevFrameY) * percent - bone.y) * alpha
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end
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return self
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end
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Animation.ScaleTimeline = {}
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function Animation.ScaleTimeline.new ()
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local PREV_FRAME_TIME = -3
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local FRAME_X = 1
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local FRAME_Y = 2
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local self = Animation.TranslateTimeline.new()
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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local frames = self.frames
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if time < frames[0] then return end -- Time is before first frame.
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local bone = skeleton.bones[self.boneIndex]
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if time >= frames[#frames - 2] then -- Time is after last frame.
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bone.scaleX = bone.scaleX + (bone.data.scaleX * frames[#frames - 1] - bone.scaleX) * alpha
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bone.scaleY = bone.scaleY + (bone.data.scaleY * frames[#frames] - bone.scaleY) * alpha
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return
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end
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-- Interpolate between the last frame and the current frame.
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local frameIndex = binarySearch(frames, time, 3)
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local prevFrameX = frames[frameIndex - 2]
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local prevFrameY = frames[frameIndex - 1]
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local frameTime = frames[frameIndex]
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local percent = 1 - (time - frameTime) / (frames[frameIndex + PREV_FRAME_TIME] - frameTime)
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if percent < 0 then percent = 0 elseif percent > 1 then percent = 1 end
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percent = self:getCurvePercent(frameIndex / 3 - 1, percent)
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bone.scaleX = bone.scaleX + (bone.data.scaleX * (prevFrameX + (frames[frameIndex + FRAME_X] - prevFrameX) * percent) - bone.scaleX) * alpha
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bone.scaleY = bone.scaleY + (bone.data.scaleY * (prevFrameY + (frames[frameIndex + FRAME_Y] - prevFrameY) * percent) - bone.scaleY) * alpha
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end
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return self
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end
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Animation.ColorTimeline = {}
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function Animation.ColorTimeline.new ()
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local PREV_FRAME_TIME = -5
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local FRAME_R = 1
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local FRAME_G = 2
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local FRAME_B = 3
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local FRAME_A = 4
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local self = Animation.CurveTimeline.new()
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self.frames = {}
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self.slotIndex = -1
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function self:getDuration ()
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return self.frames[#self.frames - 4]
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end
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function self:getFrameCount ()
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return (#self.frames + 1) / 5
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end
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function self:setFrame (frameIndex, time, r, g, b, a)
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frameIndex = frameIndex * 5
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self.frames[frameIndex] = time
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self.frames[frameIndex + 1] = r
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self.frames[frameIndex + 2] = g
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self.frames[frameIndex + 3] = b
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self.frames[frameIndex + 4] = a
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end
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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local frames = self.frames
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if time < frames[0] then return end -- Time is before first frame.
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local r, g, b, a
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if time >= frames[#frames - 4] then -- Time is after last frame.
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r = frames[#frames - 3]
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g = frames[#frames - 2]
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b = frames[#frames - 1]
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a = frames[#frames]
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else
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-- Interpolate between the last frame and the current frame.
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local frameIndex = binarySearch(frames, time, 5)
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local prevFrameR = frames[frameIndex - 4]
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local prevFrameG = frames[frameIndex - 3]
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local prevFrameB = frames[frameIndex - 2]
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local prevFrameA = frames[frameIndex - 1]
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local frameTime = frames[frameIndex]
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local percent = 1 - (time - frameTime) / (frames[frameIndex + PREV_FRAME_TIME] - frameTime)
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if percent < 0 then percent = 0 elseif percent > 255 then percent = 255 end
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percent = self:getCurvePercent(frameIndex / 5 - 1, percent)
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r = prevFrameR + (frames[frameIndex + FRAME_R] - prevFrameR) * percent
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g = prevFrameG + (frames[frameIndex + FRAME_G] - prevFrameG) * percent
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b = prevFrameB + (frames[frameIndex + FRAME_B] - prevFrameB) * percent
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a = prevFrameA + (frames[frameIndex + FRAME_A] - prevFrameA) * percent
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end
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local slot = skeleton.slots[self.slotIndex]
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if alpha < 1 then
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slot:setColor(slot.r + (r - slot.r) * alpha, slot.g + (g - slot.g) * alpha, slot.b + (b - slot.b) * alpha, slot.a + (a - slot.a) * alpha)
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else
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slot:setColor(r, g, b, a)
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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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Animation.AttachmentTimeline = {}
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function Animation.AttachmentTimeline.new ()
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local self = {
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frames = {}, -- time, ...
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attachmentNames = {},
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slotName = nil
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}
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function self:getDuration ()
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return self.frames[#self.frames]
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end
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function self:getFrameCount ()
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return #self.frames + 1
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end
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function self:setFrame (frameIndex, time, attachmentName)
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self.frames[frameIndex] = time
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self.attachmentNames[frameIndex] = attachmentName
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end
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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local frames = self.frames
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if time < frames[0] then
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if lastTime > time then self:apply(skeleton, lastTime, 999999, nil, 0) end
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return
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elseif lastTime > time then
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lastTime = -1
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end
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local frameIndex
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if time >= frames[#frames] then
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frameIndex = #frames
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else
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frameIndex = binarySearch1(frames, time) - 1
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end
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if frames[frameIndex] < lastTime then return end
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local attachmentName = self.attachmentNames[frameIndex]
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local slot = skeleton.slotsByName[self.slotName]
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if attachmentName then
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if not slot.attachment then
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slot:setAttachment(skeleton:getAttachment(self.slotName, attachmentName))
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elseif slot.attachment.name ~= attachmentName then
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slot:setAttachment(skeleton:getAttachment(self.slotName, attachmentName))
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end
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else
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slot:setAttachment(nil)
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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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Animation.EventTimeline = {}
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function Animation.EventTimeline.new ()
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local self = {
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frames = {},
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events = {}
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}
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function self:getDuration ()
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return self.frames[#self.frames]
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end
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function self:getFrameCount ()
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return #self.frames + 1
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end
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function self:setFrame (frameIndex, time, event)
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self.frames[frameIndex] = time
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self.events[frameIndex] = event
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end
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-- Fires events for frames > lastTime and <= time.
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function self:apply (skeleton, lastTime, time, firedEvents, alpha)
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if not firedEvents then return end
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local frames = self.frames
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local frameCount = #frames + 1
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if lastTime > time then -- Fire events after last time for looped animations.
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self:apply(skeleton, lastTime, 999999, firedEvents, alpha)
|
|
lastTime = -1
|
|
elseif lastTime >= frames[frameCount - 1] then -- Last time is after last frame.
|
|
return
|
|
end
|
|
if time < frames[0] then return end -- Time is before first frame.
|
|
|
|
local frameIndex
|
|
if lastTime < frames[0] then
|
|
frameIndex = 0
|
|
else
|
|
frameIndex = binarySearch1(frames, lastTime)
|
|
local frame = frames[frameIndex]
|
|
while frameIndex > 0 do -- Fire multiple events with the same frame.
|
|
if frames[frameIndex - 1] ~= frame then break end
|
|
frameIndex = frameIndex - 1
|
|
end
|
|
end
|
|
local events = self.events
|
|
while frameIndex < frameCount and time >= frames[frameIndex] do
|
|
table.insert(firedEvents, events[frameIndex])
|
|
frameIndex = frameIndex + 1
|
|
end
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
Animation.DrawOrderTimeline = {}
|
|
function Animation.DrawOrderTimeline.new ()
|
|
local self = {
|
|
frames = {},
|
|
drawOrders = {}
|
|
}
|
|
|
|
function self:getDuration ()
|
|
return self.frames[#self.frames]
|
|
end
|
|
|
|
function self:getFrameCount ()
|
|
return #self.frames + 1
|
|
end
|
|
|
|
function self:setFrame (frameIndex, time, drawOrder)
|
|
self.frames[frameIndex] = time
|
|
self.drawOrders[frameIndex] = drawOrder
|
|
end
|
|
|
|
function self:apply (skeleton, lastTime, time, firedEvents, alpha)
|
|
local frames = self.frames
|
|
if time < frames[0] then return end -- Time is before first frame.
|
|
|
|
local frameIndex
|
|
if time >= frames[#frames] then -- Time is after last frame.
|
|
frameIndex = #frames
|
|
else
|
|
frameIndex = binarySearch1(frames, time) - 1
|
|
end
|
|
|
|
local drawOrder = skeleton.drawOrder
|
|
local slots = skeleton.slots
|
|
local drawOrderToSetupIndex = self.drawOrders[frameIndex]
|
|
if not drawOrderToSetupIndex then
|
|
for i,slot in ipairs(slots) do
|
|
drawOrder[i] = slots[i]
|
|
end
|
|
else
|
|
for i,setupIndex in ipairs(drawOrderToSetupIndex) do
|
|
drawOrder[i] = skeleton.slots[setupIndex]
|
|
end
|
|
end
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
Animation.FfdTimeline = {}
|
|
function Animation.FfdTimeline.new ()
|
|
local self = Animation.CurveTimeline.new()
|
|
self.frames = {} -- time, ...
|
|
self.frameVertices = {}
|
|
self.slotIndex = -1
|
|
|
|
function self:getDuration ()
|
|
return self.frames[#self.frames]
|
|
end
|
|
|
|
function self:getFrameCount ()
|
|
return #self.frames + 1
|
|
end
|
|
|
|
function self:setFrame (frameIndex, time, vertices)
|
|
self.frames[frameIndex] = time
|
|
self.frameVertices[frameIndex] = vertices
|
|
end
|
|
|
|
function self:apply (skeleton, lastTime, time, firedEvents, alpha)
|
|
local slot = skeleton.slots[self.slotIndex]
|
|
if slot.attachment ~= self.attachment then return end
|
|
|
|
local frames = self.frames
|
|
if time < frames[0] then return end -- Time is before first frame.
|
|
|
|
local frameVertices = self.frameVertices
|
|
local vertexCount = #frameVertices[0]
|
|
local vertices = slot.attachmentVertices
|
|
if not vertices or #vertices < vertexCount then
|
|
vertices = {}
|
|
slot.attachmentVertices = vertices
|
|
end
|
|
if #vertices ~= vertexCount then
|
|
alpha = 1 -- Don't mix from uninitialized slot vertices.
|
|
end
|
|
slot.attachmentVerticesCount = vertexCount
|
|
if time >= frames[#frames] then -- Time is after last frame.
|
|
local lastVertices = frameVertices[#frames]
|
|
if alpha < 1 then
|
|
for i = 1, vertexCount do
|
|
local vertex = vertices[i]
|
|
vertices[i] = vertex + (lastVertices[i] - vertex) * alpha
|
|
end
|
|
else
|
|
for i = 1, vertexCount do
|
|
vertices[i] = lastVertices[i]
|
|
end
|
|
end
|
|
return
|
|
end
|
|
|
|
-- Interpolate between the previous frame and the current frame.
|
|
local frameIndex = binarySearch1(frames, time)
|
|
local frameTime = frames[frameIndex]
|
|
local percent = 1 - (time - frameTime) / (frames[frameIndex - 1] - frameTime)
|
|
if percent < 0 then percent = 0 elseif percent > 1 then percent = 1 end
|
|
percent = self:getCurvePercent(frameIndex - 1, percent)
|
|
|
|
local prevVertices = frameVertices[frameIndex - 1]
|
|
local nextVertices = frameVertices[frameIndex]
|
|
|
|
if alpha < 1 then
|
|
for i = 1, vertexCount do
|
|
local prev = prevVertices[i]
|
|
local vertex = vertices[i]
|
|
vertices[i] = vertex + (prev + (nextVertices[i] - prev) * percent - vertex) * alpha
|
|
end
|
|
else
|
|
for i = 1, vertexCount do
|
|
local prev = prevVertices[i]
|
|
vertices[i] = prev + (nextVertices[i] - prev) * percent
|
|
end
|
|
end
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
Animation.IkConstraintTimeline = {}
|
|
function Animation.IkConstraintTimeline.new ()
|
|
local PREV_FRAME_TIME = -3
|
|
local PREV_FRAME_MIX = -2
|
|
local PREV_FRAME_BEND_DIRECTION = -1
|
|
local FRAME_MIX = 1
|
|
|
|
local self = Animation.CurveTimeline.new()
|
|
self.frames = {} -- time, mix, bendDirection, ...
|
|
self.ikConstraintIndex = -1
|
|
|
|
function self:getDuration ()
|
|
return self.frames[#self.frames - 2]
|
|
end
|
|
|
|
function self:getFrameCount ()
|
|
return (#self.frames + 1) / 3
|
|
end
|
|
|
|
function self:setFrame (frameIndex, time, mix, bendDirection)
|
|
frameIndex = frameIndex * 3
|
|
self.frames[frameIndex] = time
|
|
self.frames[frameIndex + 1] = mix
|
|
self.frames[frameIndex + 2] = bendDirection
|
|
end
|
|
|
|
function self:apply (skeleton, lastTime, time, firedEvents, alpha)
|
|
local frames = self.frames
|
|
if time < frames[0] then return end -- Time is before first frame.
|
|
|
|
local ikConstraint = skeleton.ikConstraints[self.ikConstraintIndex]
|
|
|
|
if time >= frames[#frames - 2] then -- Time is after last frame.
|
|
ikConstraint.mix = ikConstraint.mix + (frames[#frames - 1] - ikConstraint.mix) * alpha
|
|
ikConstraint.bendDirection = frames[#frames]
|
|
return
|
|
end
|
|
|
|
-- Interpolate between the previous frame and the current frame.
|
|
local frameIndex = binarySearch(frames, time, 3);
|
|
local prevFrameMix = frames[frameIndex + PREV_FRAME_MIX]
|
|
local frameTime = frames[frameIndex]
|
|
local percent = 1 - (time - frameTime) / (frames[frameIndex + PREV_FRAME_TIME] - frameTime)
|
|
if percent < 0 then percent = 0 elseif percent > 1 then percent = 1 end
|
|
percent = self:getCurvePercent(frameIndex / 3 - 1, percent)
|
|
|
|
local mix = prevFrameMix + (frames[frameIndex + FRAME_MIX] - prevFrameMix) * percent
|
|
ikConstraint.mix = ikConstraint.mix + (mix - ikConstraint.mix) * alpha
|
|
ikConstraint.bendDirection = frames[frameIndex + PREV_FRAME_BEND_DIRECTION]
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
Animation.FlipXTimeline = {}
|
|
function Animation.FlipXTimeline.new ()
|
|
local self = {
|
|
frames = {}, -- time, flip, ...
|
|
boneIndex = -1
|
|
}
|
|
|
|
function self:getDuration ()
|
|
return self.frames[#self.frames - 1]
|
|
end
|
|
|
|
function self:getFrameCount ()
|
|
return (#self.frames + 1) / 2
|
|
end
|
|
|
|
function self:setFrame (frameIndex, time, flip)
|
|
frameIndex = frameIndex * 2
|
|
self.frames[frameIndex] = time
|
|
self.frames[frameIndex + 1] = flip
|
|
end
|
|
|
|
function self:apply (skeleton, lastTime, time, firedEvents, alpha)
|
|
local frames = self.frames
|
|
if time < frames[0] then
|
|
if lastTime > time then self:apply(skeleton, lastTime, 999999, nil, 0) end
|
|
return
|
|
elseif lastTime > time then
|
|
lastTime = -1
|
|
end
|
|
|
|
local frameIndex
|
|
if time >= frames[#frames - 1] then
|
|
frameIndex = #frames - 1
|
|
else
|
|
frameIndex = binarySearch(frames, time, 2) - 2
|
|
end
|
|
if frames[frameIndex] < lastTime then return end
|
|
|
|
self:setFlip(skeleton.bones[self.boneIndex], frames[frameIndex + 1])
|
|
end
|
|
|
|
function self:setFlip (bone, flip)
|
|
bone.flipX = flip
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
Animation.FlipYTimeline = {}
|
|
function Animation.FlipYTimeline.new ()
|
|
local self = Animation.FlipXTimeline.new()
|
|
|
|
function self:setFlip (bone, flip)
|
|
bone.flipY = flip
|
|
end
|
|
|
|
return self
|
|
end
|
|
|
|
return Animation
|