diff options
Diffstat (limited to 'modules/mono/glue/Managed/Files/Mathf.cs')
| -rw-r--r-- | modules/mono/glue/Managed/Files/Mathf.cs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/modules/mono/glue/Managed/Files/Mathf.cs b/modules/mono/glue/Managed/Files/Mathf.cs index 5f5de12959..947fbb6665 100644 --- a/modules/mono/glue/Managed/Files/Mathf.cs +++ b/modules/mono/glue/Managed/Files/Mathf.cs @@ -143,6 +143,15 @@ namespace Godot return (weight - from) / (to - from); } + public static bool IsEqualApprox(real_t a, real_t b) + { + real_t tolerance = Epsilon * Abs(a); + if (tolerance < Epsilon) { + tolerance = Epsilon; + } + return Abs(a - b) < tolerance; + } + public static bool IsInf(real_t s) { return real_t.IsInfinity(s); @@ -153,6 +162,11 @@ namespace Godot return real_t.IsNaN(s); } + public static bool IsZeroApprox(real_t s) + { + return Abs(s) < Epsilon; + } + public static real_t Lerp(real_t from, real_t to, real_t weight) { return from + (to - from) * weight; @@ -261,6 +275,16 @@ namespace Godot return (real_t)Math.Sinh(s); } + public static real_t SmoothStep(real_t from, real_t to, real_t weight) + { + if (IsEqualApprox(from, to)) + { + return from; + } + real_t x = Clamp((weight - from) / (to - from), (real_t)0.0, (real_t)1.0); + return x * x * (3 - 2 * x); + } + public static real_t Sqrt(real_t s) { return (real_t)Math.Sqrt(s); |