AI_Movement - Part 1

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;

public class AI_Movement : MonoBehaviour
{

    Animator animator;

    public float moveSpeed = 0.2f;

    Vector3 stopPosition;

    float walkTime;
    public float walkCounter;
    public int walkTimeMin = 3;
    public int walkTimeMax = 6;
    float waitTime;
    public float waitCounter;

    int WalkDirection;

    public bool isWalking;

    // Object Detection Variables (Hopefully this will work)
    public float scanDistance = 5f;
    public float rotationIncrement = 45f; // Degree increment for rotation checks

    // Start is called before the first frame update
    void Start()
    {
        animator = GetComponent<Animator>();

        //So that all the prefabs don't move/stop at the same time
        walkTime = Random.Range(walkTimeMin, walkTimeMax);
        waitTime = Random.Range(5, 7);


        waitCounter = waitTime;
        walkCounter = walkTime;

        ChooseDirection();
    }

    // Update is called once per frame
    void Update()
    {
        if (isWalking)
        {
            // Check for obstacles before moving or animating
            if (Physics.Raycast(transform.position, transform.forward, scanDistance))
            {
                // Obstacle detected, stop animation immediately
                animator.SetBool("isRunning", false);

                // Decide what to do
                int decision = Random.Range(0, 2);
                if (decision == 0)
                {
                    StopAndWait();
                }
                else
                {
                    ChooseDirection();
                }
            }
            else
            {
                // No obstacle, continue moving and animating
                animator.SetBool("isRunning", true);
                walkCounter -= Time.deltaTime;
                MoveInCurrentDirection();

                if (walkCounter <= 0)
                {
                    StopAndWait();
                }
            }
        }
        else
        {
            waitCounter -= Time.deltaTime;

            if (waitCounter <= 0)
            {
                ChooseDirection();
            }
        }
    }

    void MoveInCurrentDirection()
    {
        switch (WalkDirection)
        {
            case 0:
                transform.localRotation = Quaternion.Euler(0f, 0f, 0f);
                break;
            case 1:
                transform.localRotation = Quaternion.Euler(0f, 90, 0f);
                break;
            case 2:
                transform.localRotation = Quaternion.Euler(0f, -90, 0f);
                break;
            case 3:
                transform.localRotation = Quaternion.Euler(0f, 180, 0f);
                break;
        }
        transform.position += transform.forward * moveSpeed * Time.deltaTime;
    }

    void StopAndWait()
    {
        stopPosition = transform.position;
        isWalking = false;
        transform.position = stopPosition;
        animator.SetBool("isRunning", false);
        waitCounter = waitTime;
    }


    public void ChooseDirection()
    {
        int maxAttempts = 8;
        int attempts = 0;
        bool clearPath = false;

        while (!clearPath && attempts < maxAttempts)
        {
            float randomRotation = Random.Range(0, 360);
            Quaternion rotation = Quaternion.Euler(0f, randomRotation, 0f);
            Vector3 direction = rotation * Vector3.forward;

            if (!Physics.Raycast(transform.position, direction, scanDistance))
            {
                clearPath = true;
                transform.rotation = rotation;
            }
            else
            {
                attempts++;
            }
        }

        if (!clearPath)
        {
            WalkDirection = Random.Range(0, 4);
        }
        else
        {
            float angle = transform.rotation.eulerAngles.y;
            if (angle >= 315 || angle < 45) WalkDirection = 0;
            else if (angle >= 45 && angle < 135) WalkDirection = 1;
            else if (angle >= 135 && angle < 225) WalkDirection = 3;
            else WalkDirection = 2;
        }

        isWalking = true;
        walkCounter = walkTime;

        // Make sure the animation starts when a new direction is chosen
        animator.SetBool("isRunning", true);
    }

}