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69 lines
2.1 KiB
69 lines
2.1 KiB
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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[ExecuteInEditMode]
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public class vine : MonoBehaviour
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{
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private LineRenderer lineRenderer;
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[SerializeField]
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private GameObject position1;
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[SerializeField]
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private GameObject position2;
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private Vector3 lastPosition1;
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private Vector3 lastPosition2;
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private float lastDipMagnitude;
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private int lastNumberPoints;
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[SerializeField]
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private AnimationCurve vineCurve;
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[SerializeField]
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private float dipMagnitude = 1f;
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[SerializeField]
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private int numberOfPoints = 20;
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// Start is called before the first frame update
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void Awake()
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{
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lineRenderer = GetComponent<LineRenderer>();
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}
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void Update()
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{
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//if both positions are defined
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if (position1 != null && position2 != null)
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{
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//if either of the points have moved
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if ((position1.transform.position != lastPosition1) || (position2.transform.position != lastPosition2) || (dipMagnitude != lastDipMagnitude) || (numberOfPoints != lastNumberPoints))
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{
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Recalculate();
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}
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}
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}
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[ContextMenu("Recalculate")]
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void Recalculate()
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{
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lineRenderer.positionCount = numberOfPoints;
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//set start and end
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lineRenderer.SetPosition(0, position1.transform.position);
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lineRenderer.SetPosition(lineRenderer.positionCount-1, position2.transform.position);
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for (int i = 0; i<lineRenderer.positionCount; i++)
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{
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Vector3 newLerpPos = Vector3.Lerp(position1.transform.position, position2.transform.position, i / (float)(lineRenderer.positionCount - 1));
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Vector3 newDip = Vector3.up * dipMagnitude * (1f - vineCurve.Evaluate(i / (float)(lineRenderer.positionCount - 1)));
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lineRenderer.SetPosition(i, newLerpPos - newDip);
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}
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lastPosition1 = position1.transform.position;
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lastPosition2 = position2.transform.position;
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lastDipMagnitude = dipMagnitude;
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lastNumberPoints = numberOfPoints;
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}
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}
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