92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
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#pragma once
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#include <cstdint>
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namespace extra2d {
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enum class TweenEasing : uint8_t {
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Linear,
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QuadIn,
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QuadOut,
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QuadInOut,
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CubicIn,
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CubicOut,
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CubicInOut,
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QuartIn,
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QuartOut,
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QuartInOut,
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QuintIn,
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QuintOut,
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QuintInOut,
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SineIn,
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SineOut,
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SineInOut,
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ExpoIn,
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ExpoOut,
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ExpoInOut,
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CircIn,
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CircOut,
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CircInOut,
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ElasticIn,
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ElasticOut,
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ElasticInOut,
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BackIn,
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BackOut,
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BackInOut,
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BounceIn,
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BounceOut,
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BounceInOut,
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Smooth,
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Fade,
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};
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class EasingFunctions {
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public:
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using EasingFunc = float (*)(float);
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static float apply(float t, TweenEasing easing);
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static EasingFunc get(TweenEasing easing);
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static float linear(float t);
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static float quadIn(float t);
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static float quadOut(float t);
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static float quadInOut(float t);
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static float cubicIn(float t);
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static float cubicOut(float t);
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static float cubicInOut(float t);
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static float quartIn(float t);
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static float quartOut(float t);
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static float quartInOut(float t);
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static float quintIn(float t);
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static float quintOut(float t);
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static float quintInOut(float t);
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static float sineIn(float t);
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static float sineOut(float t);
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static float sineInOut(float t);
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static float expoIn(float t);
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static float expoOut(float t);
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static float expoInOut(float t);
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static float circIn(float t);
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static float circOut(float t);
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static float circInOut(float t);
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static float elasticIn(float t);
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static float elasticOut(float t);
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static float elasticInOut(float t);
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static float backIn(float t);
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static float backOut(float t);
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static float backInOut(float t);
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static float bounceIn(float t);
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static float bounceOut(float t);
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static float bounceInOut(float t);
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static float smooth(float t);
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static float fade(float t);
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private:
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static constexpr float PI = 3.14159265358979323846f;
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static constexpr float HALF_PI = 1.57079632679489661923f;
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static constexpr float BACK_CONST = 1.70158f;
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static constexpr float ELASTIC_CONST = 2.0f * PI / 3.0f;
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};
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} // namespace extra2d
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