Swing

Swing, a lightweight easing function library.
Swing，轻量级的缓动函数库，取名自“曳”。

Swing provides easing functions, waveform functions, spline functions, which can be used for applications such as animations, trajectories, cameras, etc.
Swing 提供缓动函数、波形函数、样条函数，可用于动画 / 轨迹 / 相机等应用。

The project also provides a wealth of runtime examples.
项目内也提供了丰富的运行时示例。

Other Version

Sway is a parallel version of the current library, independent of the Unity Engine, suitable for server-side use.
Sway 是当前库的平行版本，不依赖 Unity Engine，适用于服务端。

Readiness

Stable and available.
稳定可用。

Enum

Enum	Members
EasingMode	None, EaseIn, EaseOut, EaseInOut
EasingType	Linear, Sine, Quad, Cubic, Quart, Quint, Expo, Circ, Back, Elastic, Bounce
SplineType	Bezier, CatmullRom, Hermite, BSpline

Functions

Static Class	Static Function	Args
EasingHelper	EasingColor	Color start, Color end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
EasingHelper	EasingColor32	Color32 start, Color32 end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
EasingHelper	Easing2D	Vector2 start, Vector2 end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
EasingHelper	Easing3D	Vector3 start, Vector3 end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
EasingHelper	Easing	float start, float end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
EasingHelper	EasingByte	byte start, byte end, float current, float duration, EasingType type, EasingMode mode = EasingMode.None
SplineHelper	Easing	Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3, float current, float duration, SplineType splineType
SplineHelper	CalculateSplineLength	Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3, SplineType splineType, int segments = 100
WaveHelper	EasingInWave	float frequency, float amplitude, float current, float duration, float phase, WaveType waveType, EasingType type, EasingMode mode = EasingMode.None
WaveHelper	EasingOutWave	float frequency, float amplitude, float current, float duration, float phase, WaveType waveType, EasingType type, EasingMode mode = EasingMode.None
WaveHelper	Wave	float frequency, float amplitude, float current, float phase, WaveType waveType

Sample

// In Unity Project
var timer = 10f;
Color color;
Vector2 pos;
float x;

void Update() {
    timer -= Time.deltaTime;
    color = EasingHelper.EasingColor(Color.black, Color.red, timer, 10f, EasingType.Sine, EasingMode.EaseInOut); 
    pos = EasingHelper.Easing2D(Vector2.zero, Vector2.one, timer, 10f, EasingType.Linear, EasingMode.None);
    x = EasingHelper.Easing(-1f, 1f, timer, 10f, EasingType.Back, EasingMode.EaseIn);
}

UPM URL

Main
ssh://[email protected]/onovich/Swing.git?path=/Assets/com.mortise.swing#main