How to move without stoping?

Questions & Answers
1

I want to start the move after pressing the left mouse button. Stop only on colliding. My problem? The object moves only per one frame. How to solve it?

My script:

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

public class KnifScript : MonoBehaviour {

	[SerializeField]
	public float speed;
	//knife shouldn't be controlled by the player when it's inactive 
	//(i.e. it already hit the log / another knife)
	private bool isActive = true;


	//for controlling physics
	private Rigidbody2D rb;

	public GameObject theObjectToBeUnParented;


	private void Awake()
	{
		rb = GetComponent<Rigidbody2D>();

	}

	void Update ()
	{
		//this method of detecting input also works for touch
		if (Input.GetMouseButton (0) && isActive ) {


			Debug.Log ("MOUSE");
			theObjectToBeUnParented.transform.SetParent (null);
			transform.Translate (0, speed * Time.deltaTime, 0);
		}

	}




	private void OnCollisionEnter2D(Collision2D collision)
	{
		//we don't even want to detect collisions when the knife isn't active
		if (!isActive)
			return;



		//collision with a log
		if (collision.collider.tag == "Log") {


			rb.velocity = new Vector3 (0, 0, 0);
			//this will automatically inherit rotation of the new parent (log)
			rb.bodyType = RigidbodyType2D.Kinematic;
			transform.SetParent (collision.collider.transform);




		}
	}
}
2

try this :

 bool pressed;
bool move;
void Update ()
     {
         //this method of detecting input also works for touch
         if (Input.GetAxis ("Fire1")!=0 && !pressed ) {

             pressed=true;
             move=true;
              theObjectToBeUnParented.transform.SetParent (null);
             Debug.Log ("MOUSE");
            
         }
         if (Input.GetAxis ("Fire1")==0 ) {
              pressed=false;

         }

          if(move){

            
             transform.Translate (0, speed * Time.deltaTime, 0);
            }
     }