How do I fire a bullet where my player is facing? (C# 2D)

Question

I am making a Top Down 2D game, and I can't figure out how to fire a bullet where my player is facing. Currently the bullet only fires to the right, from my fire point. My bullet does destroy either after 3 seconds, or after $$anonymous$$tting a wall or enemy. I am using C#

     if (Input.GetKey(KeyCode.Space) && Time.time > nextFire) {
 
             nextFire = Time.time + fireRate;
             Instantiate (bullet, firePoint.position, firePoint.rotation); 
             GetComponent<Rigidbody2D> ().velocity = new Vector2 (speed, GetComponent<Rigidbody2D> ().velocity.y);
             Destroy (GameObject.FindWithTag("Bullet"), lifeTime); 
 
         }

Answer 1

Best Answer

Answer by Reynarz · Aug 02, 2017 at 09:19 PM

Transform.Up is your friend.

 public GameObject _myBulletPrefab;
 public float _shootForce = 15f;
 private GameObject _munitionInstance;


 private void Shoot()
 {
    _munitionInstance = Instantiate(_myBulletPrefab);
    var munitionRigidBody = _munitionInstance.GetComponent<Rigidbody2D>();
    munitionRigidBody.velocity = player.transform.up * _shootForce ; 
 }

And for destroy it

 private void DestroyMunition()
 {
       Destroy(_munitionInstance, 2f);
 }

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vikingallday1 · Aug 03, 2017 at 01:28 AM 0

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Thank you! This worked!

Reynarz vikingallday1 · Aug 03, 2017 at 01:51 AM 0

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You're welcome :)

Answer 2

Answer by LocalNoob · Aug 02, 2017 at 09:15 PM

In instantiate instead of firePoint.rotation use transform.up(or whatever axis it is that is in fornt of yar character). Also Instantiate returns an instantiated object so before instantiate type GameObject bullet = Instntiate()...And destroy t$$anonymous$$s bullet by its refrence not by searc$$anonymous$$ng it by tag! it is extremely inefficient! Also it is better to use raycasting and at last! your problem is in how u set your velocity...You should instaed set it to (transform.up*speed), your current aproach will always have it go in one direction

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vikingallday1 · Aug 03, 2017 at 01:29 AM 0

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Thank you! This worked! Sorry, I'm going to be a freshman in High School, so I'm learning how to code on my own, I am trying to learn how to code things efficiently.

How do I fire a bullet where my player is facing? (C# 2D)

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