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

public class EnemyAI : MonoBehaviour
{
	public int enemyhealth;
	public int energy;
	public float distance;
	public float waitforaction;
	public int act;
	public int attackact;
	public int range;
	public GameObject player;

	public int playerevade;
	public int accuracy;
	public int accuracyhalf;

	//attacks
	public int attackoneaccuracy;
	//chance to hit
	public int attackcost;
	//energy lost
	public int attackonedamage;
	//damage to player
	public int attackoneenergy;
	//if enemy energy is gained
	public int attackonechangehealth;
	//if enemy health is gained
	public int changeactone;
	//if enemy attack time is changed

	public int attacktwoaccuracy;
	public int attackcosttwo;
	public int attacktwodamage;
	public int attacktwoenergy;
	public int attacktwochangehealth;
	public int changeacttwo;

	public int attackthreeaccuracy;
	public int attackcostthree;
	public int attackthreedamage;
	public int attackthreeenergy;
	public int attackthreechangehealth;
	public int changeacthree;


	void Start ()
	{
		player = GameObject.Find("Pigobj");
		StartCoroutine("action");
	}
	IEnumerator action ()
	{
		act = Random.Range (0, 10);
		if (act == 1 && energy > 0)
		{
			act = 0;
			StartCoroutine("right");
		}
		if (act == 2 && energy > 0)
		{
			act = 0;
			StartCoroutine("left");
		}
		if (act == 3 && energy > 0)
		{
			act = 0;
			StartCoroutine("up");
		}
		if (act == 4 && energy > 0)
		{
			act = 0;
			StartCoroutine("down");
		}
		if (act >= 5 && energy > 0)
		{
			act = 0;
			StartCoroutine("attack");
		}
		yield return new WaitForSeconds(waitforaction);
		StartCoroutine("action");
	}
	IEnumerator right ()
	{
		energy -= 1;
		this.gameObject.transform.position = this.gameObject.transform.position + new Vector3 (distance, 0.0f, 0.0f);
		yield return new WaitForSeconds(2);
	}
	IEnumerator left ()
	{
		energy -= 1;
		this.gameObject.transform.position = this.gameObject.transform.position + new Vector3 (-distance, 0.0f, 0.0f);
		yield return new WaitForSeconds(2);
	}
	IEnumerator up ()
	{
		energy -= 1;
		this.gameObject.transform.position = this.gameObject.transform.position + new Vector3 (0.0f, 0.0f, distance);
		yield return new WaitForSeconds(2);
	}
	IEnumerator down ()
	{
		energy -= 1;
		this.gameObject.transform.position = this.gameObject.transform.position + new Vector3 (0.0f, 0.0f, -distance);
		yield return new WaitForSeconds(2);
	}
	IEnumerator attack ()
	{
		if (Vector3.Distance (player.transform.position, this.gameObject.transform.position) < range)
		{
			attackact = Random.Range (0, 3);
			if (attackact == 1)
			{
				StartCoroutine("attackone");
			}
			if (attackact == 2)
			{
				StartCoroutine("attacktwo");
			}
			if (attackact == 3)
			{
				StartCoroutine("attackthree");
			}
		}
		yield return new WaitForSeconds(2);
	}

	//add evade option
	IEnumerator attackone ()
	{
		energy -= attackcost;
		playerevade = GameObject.Find ("Pigobj").GetComponent<Master>().evade;
		accuracyhalf = playerevade / 2;
		accuracy = Random.Range (playerevade, attackoneaccuracy);
			if (playerevade < accuracyhalf)
			{
				GameObject.Find("Pigobj").GetComponent<Master>().currenthealth -= attackonedamage;
				enemyhealth += attackonechangehealth;
				energy += attackoneenergy;
				waitforaction = changeactone;
				yield return new WaitForSeconds(2);
			}
	}
	IEnumerator attacktwo ()
	{
		energy -= attackcosttwo;
		playerevade = GameObject.Find ("Pigobj").GetComponent<Master>().evade;
		accuracyhalf = playerevade / 2;
		accuracy = Random.Range (playerevade, attacktwoaccuracy);
		if (accuracy < accuracyhalf)
		{
			GameObject.Find("Pigobj").GetComponent<Master>().currenthealth -= attacktwodamage;
			enemyhealth += attacktwochangehealth;
			energy += attacktwoenergy;
			waitforaction = changeacttwo;
			yield return new WaitForSeconds(2);
		}
	}
	IEnumerator attackthree ()
	{
		energy -= attackcostthree;
		playerevade = GameObject.Find ("Pigobj").GetComponent<Master>().evade;
		accuracyhalf = playerevade / 2;
		accuracy = Random.Range (playerevade, attackthreeaccuracy);
		if (accuracy < accuracyhalf)
		{
			GameObject.Find("Pigobj").GetComponent<Master>().currenthealth -= attackthreedamage;
			enemyhealth += attackthreechangehealth;
			energy += attackthreeenergy;
			waitforaction = changeacthree;
			yield return new WaitForSeconds(2);
		}
	}
}