How can i make a pause after user input?

Questions & Answers
1

I want to make it so that after the user inputs WAS or D, the player stops moving after the input. So, if the user inputted W to go upward, they’ll move 1 unit before stopping, instead of how it is now, where if they hold down input the player will just keep going. Here’s the code:

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

public class moveblocking1 : MonoBehaviour {
Vector3 pos;
public float speed = 100f;

// Use this for initialization
void Start () {
	pos = transform.position;

}

// Update is called once per frame
	void FixedUpdate () {
		if(Input.GetKey(KeyCode.A) && transform.position == pos) {       
		pos += new Vector3(-1, 0, 0);
		}
		if(Input.GetKey(KeyCode.D) && transform.position == pos) {     
		pos += new Vector3 (1, 0, 0);
		}
		if(Input.GetKey(KeyCode.W) && transform.position == pos) {      
		pos += new Vector3 (0, 1, 0);
		}
		if(Input.GetKey(KeyCode.S) && transform.position == pos) {        
		pos += new Vector3(0,-1, 0);
		}
		transform.position = Vector3.MoveTowards(transform.position, pos, Time.deltaTime * speed);   
	}
	
}
2

Think you use GetKeyDown instead of GetKey
{
if(Input.GetKeyDown(KeyCode.A) && transform.position == pos) {
pos += new Vector3(-1, 0, 0);
}