[MultiSplineFollower] #unity #spline #DreamteckSplines

MultiSplineFollower.cs

using System.Collections;
using System.Collections.Generic;
using Dreamteck.Splines;
using Dreamteck.Splines.Primitives;
using UnityEngine;

public class MultiSplineFollower : MonoBehaviour
{
    [System.Serializable]
    public class SplineData
    {
        public int index;
        public SplineComputer splineComputer;
        public Spline.Direction direction;
        public Vector2 range;
    }
    public SplineData[] splineDatas;

    public SplineFollower splineFollower;

    int currentSplineIndex = 0;

    SplineData nextSpline, currentSpline;
    float previousLerp = -1;
    public float time;

    void Update()
    {
        ManualUpdate(time += (Time.deltaTime * 0.1f));
    }

    void Start()
    {
        currentSplineIndex = 0;
        currentSpline = splineDatas[currentSplineIndex];
        if (splineDatas.Length > 1)
            nextSpline = splineDatas[currentSplineIndex + 1];
    }

    public void ManualUpdate(float lerp)
    {
        if (lerp > previousLerp)
        {
            if (currentSplineIndex < splineDatas.Length - 1)
            {
                if (lerp > nextSpline.range.x)
                {
                    currentSplineIndex += 1;
                    currentSpline = splineDatas[currentSplineIndex];

                    if (currentSplineIndex < splineDatas.Length - 1)
                        nextSpline = splineDatas[currentSplineIndex + 1];

                    splineFollower.spline = currentSpline.splineComputer;
                    splineFollower.RebuildImmediate();
                }
                splineFollower.SetPercent(Mathf.InverseLerp(currentSpline.range.x, currentSpline.range.y, lerp));
            }
            else
            {
                //Last Spline
                splineFollower.SetPercent(Mathf.InverseLerp(currentSpline.range.x, currentSpline.range.y, lerp));
            }
        }
        else
        {
            if (currentSplineIndex > 0)
            {
                if (lerp < nextSpline.range.y)
                {
                    currentSplineIndex -= 1;
                    currentSpline = splineDatas[currentSplineIndex];

                    if (currentSplineIndex > 0)
                        nextSpline = splineDatas[currentSplineIndex - 1];

                    splineFollower.spline = currentSpline.splineComputer;
                    splineFollower.RebuildImmediate();
                }
                splineFollower.SetPercent(Mathf.InverseLerp(currentSpline.range.x, currentSpline.range.y, lerp));
            }
            else
            {
                //Last Spline
                splineFollower.SetPercent(Mathf.InverseLerp(currentSpline.range.x, currentSpline.range.y, lerp));
            }
        }
        previousLerp = lerp;
    }
}