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executable file 41 lines (32 sloc) 1.277 kb
/*
LiCK Library for ChucK.
Copyright (c) 2007-2012 held jointly by the individual authors.
This file is part of LiCK.
LiCK is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
LiCK is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with LiCK. If not, see <http://www.gnu.org/licenses/>.
*/
public class ElasticInOut extends Interpolation
{
Math.PI * 2.0 => static float PI_TIMES_2;
fun float evaluate(float value)
{
0.3 * 1.5 => float p;
p / 4.0 => float s;
2.0 * value => float q;
if (q < 1.0)
{
q - 1.0 => q;
return -0.5 * (Math.pow(2.0, 10.0 * q) * Math.sin((q - s) * (PI_TIMES_2) / p));
}
q - 1.0 => q;
return 0.5 * Math.pow(2.0, -10.0 * q) * Math.sin((q - s) * (PI_TIMES_2) / p) + 1.0;
}
}
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