191 lines
7.7 KiB
JavaScript
191 lines
7.7 KiB
JavaScript
/*
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* based on jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
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*
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* TERMS OF USE - jQuery Easing
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*
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* Open source under the BSD License.
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*
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* Copyright © 2008 George McGinley Smith
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* Neither the name of the author nor the names of contributors may be used to endorse
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* or promote products derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR 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 EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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// t: current time, b: begInnIng value, c: change In value, d: duration
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exports.ease = {
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linear(t, b, c, d) { return c * t / d + b; },
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inQuad(t, b, c, d) { return c * (t /= d) * t + b; },
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outQuad(t, b, c, d) { return -c * (t /= d) * (t - 2) + b; },
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inOutQuad(t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t + b;
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return -c / 2 * ((--t) * (t - 2) - 1) + b;
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},
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inCubic(t, b, c, d) { return c * (t /= d) * t * t + b; },
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outCubic(t, b, c, d) { return c * ((t = t / d - 1) * t * t + 1) + b; },
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inOutCubic(t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t * t + b;
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return c / 2 * ((t -= 2) * t * t + 2) + b;
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},
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inQuart(t, b, c, d) {
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return c * (t /= d) * t * t * t + b;
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},
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outQuart(t, b, c, d) {
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return -c * ((t = t / d - 1) * t * t * t - 1) + b;
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},
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inOutQuart(t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t * t * t + b;
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return -c / 2 * ((t -= 2) * t * t * t - 2) + b;
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},
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inQuint(t, b, c, d) {
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return c * (t /= d) * t * t * t * t + b;
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},
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outQuint(t, b, c, d) {
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return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
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},
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inOutQuint(t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t * t * t * t + b;
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return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
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},
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inSine(t, b, c, d) {
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return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
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},
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outSine(t, b, c, d) {
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return c * Math.sin(t / d * (Math.PI / 2)) + b;
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},
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inOutSine(t, b, c, d) {
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return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;
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},
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inExpo(t, b, c, d) {
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return (t === 0) ? b : c * (2 ** (10 * (t / d - 1))) + b;
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},
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outExpo(t, b, c, d) {
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return (t === d) ? b + c : c * (-(2 ** (-10 * t / d)) + 1) + b;
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},
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inOutExpo(t, b, c, d) {
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if (t === 0) return b;
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if (t === d) return b + c;
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if ((t /= d / 2) < 1) return c / 2 * (2 ** (10 * (t - 1))) + b;
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return c / 2 * (-(2 ** (-10 * --t)) + 2) + b;
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},
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inCirc(t, b, c, d) {
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return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
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},
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outCirc(t, b, c, d) {
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return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
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},
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inOutCirc(t, b, c, d) {
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if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
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return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
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},
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inElastic(t, b, c, d) {
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let s = 1.70158; let p = 0; let a = c;
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if (t === 0) return b; if ((t /= d) === 1) return b + c; if (!p) p = d * 0.3;
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if (a < Math.abs(c)) { a = c; s = p / 4; } else s = p / (2 * Math.PI) * Math.asin(c / a);
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return -(a * (2 ** (10 * (t -= 1))) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
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},
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outElastic(t, b, c, d) {
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let s = 1.70158; let p = 0; let a = c;
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if (t === 0) return b; if ((t /= d) === 1) return b + c; if (!p) p = d * 0.3;
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if (a < Math.abs(c)) { a = c; s = p / 4; } else s = p / (2 * Math.PI) * Math.asin(c / a);
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return a * (2 ** (-10 * t)) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b;
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},
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inOutElastic(t, b, c, d) {
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let s = 1.70158; let p = 0; let a = c;
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if (t === 0) return b; if ((t /= d / 2) === 2) return b + c; if (!p) p = d * (0.3 * 1.5);
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if (a < Math.abs(c)) { a = c; s = p / 4; } else s = p / (2 * Math.PI) * Math.asin(c / a);
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if (t < 1) return -0.5 * (a * (2 ** (10 * (t -= 1))) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
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return a * (2 ** (-10 * (t -= 1))) * Math.sin((t * d - s) * (2 * Math.PI) / p) * 0.5 + c + b;
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},
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inBack(t, b, c, d, s) {
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if (s === undefined) s = 1.70158;
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return c * (t /= d) * t * ((s + 1) * t - s) + b;
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},
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outBack(t, b, c, d, s) {
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if (s === undefined) s = 1.70158;
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return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
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},
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inOutBack(t, b, c, d, s) {
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if (s === undefined) s = 1.70158;
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if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;
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return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;
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},
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inBounce(t, b, c, d) {
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return c - exports.ease.outBounce(d - t, 0, c, d) + b;
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},
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outBounce(t, b, c, d) {
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if ((t /= d) < (1 / 2.75)) {
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return c * (7.5625 * t * t) + b;
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} else if (t < (2 / 2.75)) {
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return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b;
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} else if (t < (2.5 / 2.75)) {
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return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b;
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}
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return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b;
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},
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inOutBounce(t, b, c, d) {
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if (t < d / 2) return exports.ease.inBounce(t * 2, 0, c, d) * 0.5 + b;
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return exports.ease.outBounce(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;
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},
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};
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/*
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*
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* TERMS OF USE - EASING EQUATIONS
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*
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* Open source under the BSD License.
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*
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* Copyright © 2001 Robert Penner
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* Neither the name of the author nor the names of contributors may be used to endorse
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* or promote products derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR 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 EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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