Unity Float Extension Methods

by animalphase

( Crawled 2 hours ago )

Float extension methods for Unity 3D 🎛

🎚 Easy implementation of common float operations 🎚



  • Smooth0to1 function 〰️〰️〰️
    • call this method on a float in the range of 0–1, and it will return a value blended by the chosen SmoothType
  • SmoothType enum - used to select which SmoothType to use when calling the Smooth0to1 function.

    • Included smoothing equations:
      • SmoothType.smoothstep
      • SmoothType.smootherstep
      • SmoothType.exponential
      • SmoothType.easeIn
      • SmoothType.easeOut
      • SmoothType.none — no smoothing applied
  • RemapToNumberRange — call this method on a float to remap it from one range to another.

Example Usage — Smooth0to1

currentPercentage = (currentLerpTime/lerpDuration).Smooth0to1(SmoothType.smootherstep);

In this example, currentLerpTime is adjusted over time, in your component's relevant logic. currentLerpTime is assumed to be the linear/unsmoothed value.

.Smooth0to1 is then called on this float value, with an argument declaring which SmoothType to use. It returns a float value, smoothed with the chosen SmoothType, and does not mutate the original value.

Exposing SmoothType as an option in the Inspector:

Declare a public variable:

public SmoothType smoothType = SmoothType.smootherstep;

Pass the variable as the argument for SmoothType().

currentPercentage = (currentLerpTime/lerpDuration).Smooth0to1(smoothType);

Now it's easy to switch between smoothing modes in the Inspector window:

example of SmoothType dropdown in Inspector window

// TODO:

  • Profile performance to compare with Mathf.SmoothStep (thanks Stella)
  • add additional smoothing equations
  • options to incorporate perlin noise to the returned value
  • add additional float operations(?)

Feel free to add an issue, pull request, or reach me on twitter at @animalphase!