I NEED HELP

so im making a game and I've tried scripting the guns (im a new dev) and the script aint working because it won't move forward can anyone help

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

public class Shooting : MonoBehaviour {

public GameObject bullet;
public float speed = 100f;

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
if(Input.GetKeyDown(KeyCode.Space)){
GameObject instBullet = Instantiate(bullet, transform.position, Quaternion.identity) as GameObject;
Rigidbody instBulletRigidbody = instBullet.GetComponent<Rigidbody>();
instBulletRigidbody.AddForce(Vector3.forward * speed);

}

}
}

 

Forum etiquette: 1) Use a better post title so that people with relevant knowledge will know to click your post (literally everyone posting here "needs help". 2) Use [code ]code tags[/code] when posting code.

When you say "it won't move forward", you mean the bullet, I assume. Is it possible the bullet is colliding with something as soon as it's shot (such as the player's rigidbody)?

This probably isn't your main issue, but rigidbody.AddForce should not be used during Update(). It adds force across the length of the frame, and since frames may be different lengths of time, it will shoot bullets at unpredictable speeds. You can either a) set rigidbody.velocity directly, or b) separate the input and the shooting parts of your code (move the AddForce call into FixedUpdate, but you shouldn't do input checks in FixedUpdate, so that should stay in Update). In this situation A is far easier and more sensible.

 

Disable all bullet colliders to see if collisions at the point of instantiation are the problem. Otherwise everything @StarManta said. Also, try adjusting speed to higher values to see if that changes anything.