/Mathfs

Expanded Math Functionality for Unity

Primary LanguageC#

Mathfs

Expanded Math Functionality for Unity

Features

  • Quadratic & Linear Root finders
  • 2D Angle helpers (AngToDir, DirToAng...)
  • 2D Vector extension methods (Rotate90CCW/CW, Rotate, RotateAround...)
  • Trajectory Math helpers (GetLaunchSpeed, GetMaxRange, TryGetLaunchAngles...)
  • Remap functions
  • Added Tau and the Golden Ratio
  • Vector extension methods (WithMagnitude, ClampMagnitude(min,max)...)
  • Expanded basic math operations to vectors (Clamp, Round, Abs...)
  • Color extensions (WithAlpha, MultiplyRGB...)
  • Smoothing functions (Smooth01, SmoothCos01...)
  • Triangle Math helpers (SignedArea, Circumcenter...)
  • Added alternate angle functions to use radians instead of degrees
  • And more!

Changes

Mathf.cs has a #define to match Unity's library - keep this defined if you are porting an existing project to use Mathfs, otherwise I recommend commenting it out! It makes a few changes:

  • Lerp and InverseLerp
    • Now unclamped by default
    • Now uses the more numerically stable evaluation
    • LerpClamped/InverseLerpClamped are now the special case functions/exceptions
  • Smoothstep is removed in favor of the more explicit:
    • LerpSmooth (which is how it was implemented) and
    • InverseLerpSmooth (which is how it is implemented everywhere but Unity's Mathf.cs)
  • Angle functions will explicitly have a Deg-suffix to indicate degrees (this library adds radian versions as well)
  • Min/Max functions with arbitrary inputs/array input will throw instead of returning 0