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

public class EvasiveManeuver : MonoBehaviour
{
	public Vector2 startWait, maneuverTime, maneuverWait;
	public float dodge, smoothing, tilt;
	private float targetManeuver, currentSpeed;
    public Boundary boundary;
	private Rigidbody rb;
	void Start()
	{
		rb = GetComponent<Rigidbody>();
		currentSpeed = rb.velocity.z;
		StartCoroutine(Evade());
	}
	IEnumerator Evade()
	{
			yield return new WaitForSeconds(Random.Range(startWait.x, startWait.y));
			while (true)
			{
					targetManeuver = Random.Range(1, dodge) * -Mathf.Sign(transform.position.x);
					yield return new WaitForSeconds(Random.Range(maneuverTime.x, maneuverTime.y));
					targetManeuver = 0;
					yield return new WaitForSeconds(Random.Range(maneuverWait.x, maneuverWait.y));
			}
	}
	void FixedUpdate()
	{
		float newManeuver = Mathf.MoveTowards(rb.velocity.x, targetManeuver, Time.deltaTime * smoothing);
		rb.velocity = new Vector3(newManeuver, 0.0f, currentSpeed);
		rb.position = new Vector3
		(
			Mathf.Clamp(rb.position.x, boundary.xMin, boundary.xMax),
			0.0f,
			Mathf.Clamp(rb.position.z, boundary.zMin, boundary.zMax)
		);
        rb.rotation = Quaternion.Euler(0.0f, 0.0f, rb.velocity.x * -tilt);
	}
}