SlimeControl.cs

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

public class SlimeControll : MonoBehaviour
{

    public float speed;
    public float distance;
    public int life = 3;
    private bool movingRight = true;
    public Transform wallDetectionRight;
    public Transform wallDetectionLeft;
    RaycastHit2D wallInfo;
    [SerializeField] private LayerMask layerMask;
    private float defaultSpeed;
    bool ragemode = false;
    SpriteRenderer sprite;
    Color defaultColor;
    // Start is called before the first frame update
    void Start()
    {
        defaultSpeed = speed;
        life = 3;
        sprite = GetComponent<SpriteRenderer>();
        defaultColor = sprite.color;
    }

    // Update is called once per frame
    void Update()
    {
        if (movingRight)
        {
            transform.Translate(Vector2.right * speed * Time.deltaTime);
            wallInfo = Physics2D.Raycast(wallDetectionRight.position, Vector2.right, distance, layerMask);
        }
        if (!movingRight)
        {
            transform.Translate(Vector2.left * speed * Time.deltaTime);
            wallInfo = Physics2D.Raycast(wallDetectionLeft.position, Vector2.left, distance, layerMask);
        }


        if (wallInfo.collider == true)
        {
            if (movingRight)
            {
                Flip();
                movingRight = false;
            }
            else
            {
                Flip();
                movingRight = true;
            }
        }
    }
    void OnTriggerEnter2D(Collider2D col)
    {
        if (col.CompareTag("bullet"))
        {
            life--;
            if (life <= 0)
            {
                Destroy(gameObject);
            } else if (ragemode == false)
            {

                ragemode = true;
                speed = defaultSpeed + 4;
                GameSystem.Instance.PlaySound("slimeAttack", GameSystem.Instance.enemySounds);
                Invoke("RevertSpeed", 3);
                if (col.gameObject.transform.position.x > transform.position.x)
                {
                    if (!movingRight)
                    {
                        movingRight = true;
                        Flip();
                    }
                }
                else if (col.gameObject.transform.position.x < transform.position.x)
                {
                    if (movingRight)
                    {
                        movingRight = false;
                        Flip();
                    }
                }

            }
            Blink();
            Destroy(col.gameObject);
        }
    }
    void RevertSpeed()
    {
        speed = defaultSpeed;
        ragemode = false;
    }
    void Flip()
    {
        Vector3 theScale = transform.localScale;
        theScale.x *= -1;
        transform.localScale = theScale;
    }
    void Blink()
    {
            sprite.material.color = Color.clear;
            Invoke("SetDefalutColor", 0.05f);

    }
    void SetDefalutColor()
    {
        sprite.material.color = defaultColor;
    }
}