emmanueloga / easing Goto Github PK
View Code? Open in Web Editor NEWEasing functions implemented in lua (Functions from http://www.robertpenner.com/easing/ )
Home Page: http://emmanueloga.com
License: Other
Easing functions implemented in lua (Functions from http://www.robertpenner.com/easing/ )
Home Page: http://emmanueloga.com
License: Other
I'm not sure, but it seems that all the other "families" have an "outIn" version except the "quad" family
Tweener authors,
Yuichi Tateno,
Emmanuel Oga
The MIT License
--------
Copyright (c) 2010, Emmanuel Oga.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Credit for Yuichi Tateno is outside of the MIT block— if I distribute only the MIT block in my application disclosures am I satisfying the license?
The .lua file contains a BSD-3 license for Robert Penner. Would you & Yuichi Tateno consider offering an optional BSD-3 license so I could merge the credits to Penner, Oga and
(What would be most helpful is if the license.txt contained a single block people could copypaste and be fully complying with the license.)
Thanks!
local function inOutElastic(t, b, c, d, a, p)
if t == 0 then return b end
t = t / d * 2
if t == 2 then return b + c end
if not p then p = d * (0.3 * 1.5) end
if not a then a = 0 end
if not a or a < abs(c) then
a = c
s = p / 4
else
s = p / (2 * pi) * asin(c / a)
end
if t < 1 then
t = t - 1
return -0.5 * (a * pow(2, 10 * t) * sin((t * d - s) * (2 * pi) / p)) + b
else
t = t - 1
return a * pow(2, -10 * t) * sin((t * d - s) * (2 * pi) / p ) * 0.5 + c + b
end
end
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