104 lines
3.4 KiB
C#
104 lines
3.4 KiB
C#
using UnityEngine;
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using Dreamteck;
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namespace Dreamteck.Splines{
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[System.Serializable]
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public struct SplineSample {
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public Vector3 position;
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public Vector3 up;
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public Vector3 forward;
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public Color color;
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public float size;
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public double percent;
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public void FastCopy(ref SplineSample sample)
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{
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position = sample.position;
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up = sample.up;
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forward = sample.forward;
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color = sample.color;
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size = sample.size;
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percent = sample.percent;
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}
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public Quaternion rotation
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{
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get {
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if (up == forward)
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{
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if (up == Vector3.up) return Quaternion.LookRotation(Vector3.up, Vector3.back);
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else return Quaternion.LookRotation(forward, Vector3.up);
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}
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return Quaternion.LookRotation(forward, up); }
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}
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public Vector3 right
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{
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get {
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if(up == forward)
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{
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if (up == Vector3.up) return Vector3.right;
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else return Vector3.Cross(Vector3.up, forward).normalized;
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}
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return Vector3.Cross(up, forward).normalized; }
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}
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public static SplineSample Lerp(ref SplineSample a, ref SplineSample b, float t)
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{
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SplineSample result = new SplineSample();
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Lerp(ref a, ref b, t, ref result);
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return result;
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}
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public static SplineSample Lerp(ref SplineSample a, ref SplineSample b, double t)
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{
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SplineSample result = new SplineSample();
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Lerp(ref a, ref b, t, ref result);
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return result;
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}
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public static void Lerp(ref SplineSample a, ref SplineSample b, double t, ref SplineSample target)
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{
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float ft = (float)t;
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DMath.LerpVector3NonAlloc(a.position, b.position, t, ref target.position);
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target.forward = Vector3.Slerp(a.forward, b.forward, ft);
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target.up = Vector3.Slerp(a.up, b.up, ft);
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target.color = Color.Lerp(a.color, b.color, ft);
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target.size = Mathf.Lerp(a.size, b.size, ft);
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target.percent = DMath.Lerp(a.percent, b.percent, t);
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}
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public static void Lerp(ref SplineSample a, ref SplineSample b, float t, ref SplineSample target)
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{
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DMath.LerpVector3NonAlloc(a.position, b.position, t, ref target.position);
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target.forward = Vector3.Slerp(a.forward, b.forward, t);
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target.up = Vector3.Slerp(a.up, b.up, t);
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target.color = Color.Lerp(a.color, b.color, t);
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target.size = Mathf.Lerp(a.size, b.size, t);
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target.percent = DMath.Lerp(a.percent, b.percent, t);
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}
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public void Lerp(ref SplineSample b, double t)
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{
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Lerp(ref this, ref b, t, ref this);
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}
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public void Lerp(ref SplineSample b, float t)
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{
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Lerp(ref this, ref b, t, ref this);
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}
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public SplineSample(Vector3 position, Vector3 up, Vector3 forward, Color color, float size, double percent)
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{
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this.position = position;
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this.up = up;
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this.forward = forward;
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this.color = color;
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this.size = size;
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this.percent = percent;
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}
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}
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}
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