if (!GetComponent<AudioSource>().isPlaying && Input.GetKeyDown(KeyCode.A)) 
             { 
                 GetComponent<AudioSource>().PlayOneShot(sesler[1]); 
             } 
             else 
             { 
                 GetComponent<AudioSource>().Stop(); 
             } 
 

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

public class OHareket : MonoBehaviour {
    public GameObject oyuncu, gm;
    public int hiz = 5, yhiz = 200;
    public bool yerde, dead, sagS, solS;
    public Rigidbody2D rb;
    public AudioClip[] sesler;
    public AudioSource audioSource;

	// Use this for initialization
	void Start () {

        rb = GetComponent<Rigidbody2D>();
        dead = gm.GetComponent<GameManager>().dead;
        audioSource = GetComponent<AudioSource>();

    }
	
	// Update is called once per frame
	void Update () {


        if (Input.GetKey(KeyCode.A))
        {
            oyuncu.transform.Translate(new Vector3(-hiz * Time.deltaTime, 0 ,0));
            oyuncu.transform.localScale = new Vector3(1,1,1);
            if (audioSource.isPlaying == false && Input.GetKey(KeyCode.A))
            {
                audioSource.PlayOneShot(sesler[1]);
                sagS = true;
            }
            else
            {
                sagS = false;
            }
            if (sagS==false)
            {
                audioSource.Stop();
                Debug.Log("A");
            }

        }

        if (Input.GetKey(KeyCode.D))
        {
            oyuncu.transform.Translate(new Vector3(hiz * Time.deltaTime, 0, 0));
            oyuncu.transform.localScale = new Vector3(-1, 1, 1);
            if (audioSource.isPlaying == false && Input.GetKey(KeyCode.D))
            {
                audioSource.PlayOneShot(sesler[1]);
                Debug.Log("1D");
            }
            else if (audioSource.isPlaying == true && Input.GetKeyUp(KeyCode.D))
            {
                audioSource.Stop();
                Debug.Log("D");
            }

        }
        if(Input.GetKeyDown(KeyCode.W) && yerde && !dead)
        {
            rb.AddForceAtPosition(new Vector2(0, yhiz), Vector2.up);
            yerde = false;
            audioSource.PlayOneShot(sesler[0]);
        }

    }

    private void OnCollisionEnter2D(Collision2D col)
    {
        if (col.gameObject.tag == "Yer")
        {
            yerde = true;
        }
    }
}