gistfile1.txt

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

public class MummyAI : MonoBehaviour {

    // Global variables
    int currentDir = 1;
    public float speed = 0.00f;
    public float chaseSpeed = 0.0f;
    Vector3 playerPos;
    Vector3 thisPos;
    public Animator mummyAnimator;
    


    public float chaseDist = 0.0f;
    bool chaseX = false;
    bool chaseY = false;

    // Use this for initialization
    void Start () {
        InvokeRepeating("Move", 1f, 1f);
	}
	
	// Update is called once per frame
	void Update () {
        //Find the player position
        playerPos = GameObject.FindGameObjectWithTag("Player").transform.position;
        thisPos = this.transform.position;


        //Determine if player is close enough to chase
        if (Mathf.Abs(thisPos.x - playerPos.x) < chaseDist)
        {
            chaseX = true;
            //change color to red
            GetComponent<SpriteRenderer>().color = new Color(255, 0, 0);
            //increase speed
            float step = chaseSpeed * Time.deltaTime;
            //chase player
            //transform.position = Vector3.MoveTowards(transform.position, playerPos, step);
        }
        else chaseX = false;
        
        if(Mathf.Abs(thisPos.y - playerPos.y) < chaseDist){
            chaseY = true;
            GetComponent<SpriteRenderer>().color = new Color(255, 0, 0);
            float step = chaseSpeed * Time.deltaTime;
            //transform.position = Vector3.MoveTowards(transform.position, playerPos, step);
        }
        else {
            chaseY = false;
        }

        //chase the appropriate direction
        if(chaseX && !chaseY)
        {
            if(thisPos.x - playerPos.x > 0)
            {
                //chase left
                Vector3 position = this.transform.position;
                position.x -= chaseSpeed;
                this.transform.position = position;
                mummyAnimator.Play("mummyLeft");
                
            }else
            {
                //chase right
                Vector3 position = this.transform.position;
                position.x += chaseSpeed;
                this.transform.position = position;
                mummyAnimator.Play("mummyRight");
            }
        }else if(chaseY && !chaseX)
        {
            if(thisPos.y - playerPos.y > 0)
            {
                //chase up
                Vector3 position = this.transform.position;
                position.y -= chaseSpeed;
                this.transform.position = position;
                mummyAnimator.Play("mummyDown");
            }else
            {
                //chase down
                Vector3 position = this.transform.position;
                position.y += chaseSpeed;
                this.transform.position = position;
                mummyAnimator.Play("mummyUp");
            }
        }else if(chaseX && chaseY)
        {
            //Determine which direction is further
            float xDist, yDist;
            xDist = thisPos.x - playerPos.x;
            yDist = thisPos.y - playerPos.y;
            if(yDist < xDist)
            {
                //move horizontal
                if (thisPos.x - playerPos.x > 0)
                {
                    //chase left
                    Vector3 position = this.transform.position;
                    position.x -= chaseSpeed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyLeft");
                }
                else
                {
                    //chase right
                    Vector3 position = this.transform.position;
                    position.x += chaseSpeed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyRight");
                }
            }else if(xDist < yDist)
            {
                //Move vertical
                if (thisPos.y - playerPos.y > 0)
                {
                    //chase up
                    Vector3 position = this.transform.position;
                    position.y -= chaseSpeed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyDown");
                }
                else
                {
                    //chase down
                    Vector3 position = this.transform.position;
                    position.y += chaseSpeed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyUp");
                }
            }
        }


        //if player is too far away, then roam
        if (chaseX == false && chaseY == false) {
                //change to original color
                GetComponent<SpriteRenderer>().color = new Color(255, 255, 255);
                if (currentDir == 0)
                {
                    Vector3 position = this.transform.position;
                    position.y -= speed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyDown");
            }
                else if (currentDir == 1)
                {
                    Vector3 position = this.transform.position;
                    position.x += speed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyRight");
            }
                else if (currentDir == 2)
                {
                    Vector3 position = this.transform.position;
                    position.y += speed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyUp");
            }
                else if (currentDir == 3)
                {
                    Vector3 position = this.transform.position;
                    position.x -= speed;
                    this.transform.position = position;
                    mummyAnimator.Play("mummyLeft");
            }
        }
        
	}

    void Move(){
        //pick a direction
        currentDir = Random.Range(0, 4);
    }
}