32 lines
1.4 KiB
C#
32 lines
1.4 KiB
C#
|
using System;
|
||
|
|
using System.Numerics;
|
||
|
|
using Godot;
|
||
|
|
|
||
|
|
namespace SpaceCapture;
|
||
|
|
|
||
|
|
public static class Utils
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Time-independent damping with exponential-decay.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="current">Current value.</param>
|
||
|
|
/// <param name="target">Target value.</param>
|
||
|
|
/// <param name="smoothing">The proportion of <paramref name="current"/> remaining after one second, the rest is <paramref name="target"/>.</param>
|
||
|
|
/// <param name="deltaTime">Seconds passed since last invocation.</param>
|
||
|
|
/// <typeparam name="T"></typeparam>
|
||
|
|
/// <returns></returns>
|
||
|
|
public static T Damp<T>(T current, T target, float smoothing, double deltaTime)
|
||
|
|
where T : IAdditionOperators<T, T, T>, ISubtractionOperators<T, T, T>, IMultiplyOperators<T, float, T>
|
||
|
|
=> Lerp(current, target, (float)(1d - Math.Pow(smoothing, deltaTime)));
|
||
|
|
|
||
|
|
/// <inheritdoc cref="Damp{T}(T, T, float, double)" />
|
||
|
|
public static Godot.Vector2 Damp(Godot.Vector2 current, Godot.Vector2 target, float smoothing, double deltaTime)
|
||
|
|
=> current.Lerp(target, (float)(1d - Math.Pow(smoothing, deltaTime)));
|
||
|
|
|
||
|
|
/// <inheritdoc cref="Mathf.Lerp(double, double, double)"/>
|
||
|
|
/// <typeparam name="T"></typeparam>
|
||
|
|
public static T Lerp<T>(T from, T to, float weight)
|
||
|
|
where T : IAdditionOperators<T, T, T>, ISubtractionOperators<T, T, T>, IMultiplyOperators<T, float, T>
|
||
|
|
=> from + (to - from) * weight;
|
||
|
|
}
|