66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
// Copyright (c) 2023 Dominic Masters
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//
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// This software is released under the MIT License.
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// https://opensource.org/licenses/MIT
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#include "easing.hpp"
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float_t easeTimeToEase(
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const float_t start,
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const float_t current,
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const float_t duration
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) {
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return (current - start) / duration;
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}
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float_t easeLinear(const float_t t) {
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return t;
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}
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float_t easeInQuad(const float_t t) {
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return t * t;
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}
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float_t easeOutQuad(const float_t t) {
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return t * (2 - t);
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}
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float_t easeOutCubic(const float_t t) {
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return 1 - powf(1 - t, 3);
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}
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float_t easeInOutQuad(const float_t t) {
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return t < .5 ? 2 * t * t : -1 + (4 - 2 * t) * t;
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}
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float_t easeInCubic(const float_t t) {
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return t * t * t;
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}
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float_t easeInOutCubic(const float_t t) {
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return t < .5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;
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}
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float_t easeInQuart(const float_t t) {
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return t * t * t * t;
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}
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float_t easeOutQuart(const float_t t) {
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return 1 - (t-1)*(t-1)*(t-1)*(t-1);
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}
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float_t easeInOutQuart(const float_t t) {
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return t < .5 ? 8*t*t*t*t : 1-8*(t-1)*(t-1)*(t-1)*(t-1);
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}
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float_t easeInQuint(const float_t t) {
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return t*t*t*t*t;
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}
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float_t easeOutQuint(const float_t t) {
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return 1 + (t-1)*(t-1)*(t-1)*(t-1)*(t-1);
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}
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float_t easeInOutQuint(const float_t t) {
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return t<.5 ? 16*t*t*t*t*t : 1+16*(t-1)*(t-1)*(t-1)*(t-1)*(t-1);
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} |