CritterMovement

Krythic

May 1st, 2023

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using UnityEngine;
using System.Collections;
[ExecuteInEditMode]
public class CritterMovement : MonoBehaviour
{
public float movementDuration = 1.0f;
public float minWaitTime;
public float maxWaitTime;
private bool hasArrived = false;
public GameObject parent;
private Coroutine moveCoroutine = null;
private BoxCollider _parentCollider;
public void Start()
{
_parentCollider = parent.GetComponent<BoxCollider>();
}
private void Update()
{
if (!hasArrived)
{
hasArrived = true;
moveCoroutine = StartCoroutine(MoveToPoint(GetRandomPositionWithinBounds()));
}
}
public Vector3 GetRandomPositionWithinBounds()
{
Bounds boundingBox = _parentCollider.bounds;
Vector3 target = new Vector3(
Random.Range(boundingBox.min.x, boundingBox.max.x),
boundingBox.min.y,
Random.Range(boundingBox.min.z, boundingBox.max.z)
);
return boundingBox.ClosestPoint(target);
}
private IEnumerator MoveToPoint(Vector3 targetPos)
{
float timer = 0.0f;
Vector3 startPos = new Vector3(transform.position.x, _parentCollider.bounds.min.y, transform.position.z);
while (timer < movementDuration)
{
timer += Time.deltaTime;
float t = timer / movementDuration;
t = t * t * t * (t * (6f * t - 15f) + 10f);
transform.position = Vector3.Lerp(startPos, targetPos, t);
Vector3 lookPos = targetPos - transform.position;
lookPos.y = 0;
Quaternion rotation = Quaternion.LookRotation(lookPos);
float damping = 2;
transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * damping);
yield return null;
}
yield return new WaitForSeconds(Random.Range(minWaitTime,maxWaitTime));
hasArrived = false;
}
}

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