My shoot script

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1

Hi, I’m not new to programming but I haven’t done much in Unity. I’m writing a script that’s responsible for shooting at the mouse. I’ve been struggling with it for a few days now and it doesn’t work either when I write it myself or when I follow the tutorial. I have a lot of errors, if their content is needed I’ll send it. Here are two scripts I’m having trouble with:

First script:

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

public class Schoting : MonoBehaviour
{
    [SerializeField] private Rigidbody2D rb;

    private Vector3 mousePos = new Vector3(0f, 0f, 0f);

    private float speed = 20;

    GameObject prefab;
    public float czas;
    public float czas_max;
    public bool canFire;
    //public Transform pocisk_poz;

    private Camera cam;

    //private Vector3 pocisk_poz;

    private void Start() 
    {
        cam = GameObject.FindGameObjectWithTag("MainCamera").GetComponent<Camera>();

        /*inputX = Input.GetAxis("Horizontal");
        inputY = Input.GetAxis("Vertical");

        pocisk_poz = new Vector3(inputX, inputY, 0);

        bool wystrzelono = false;

        cam = GameObject.FindGameObjectWithTag("MainCamera").GetComponent<Camera>();

        
        
        Vector3 kierunek;
        
        kierunek.Normalize();
        */
    }

    private void Update() 
    {
        mousePos = new Vector3(cam.ScreenToWorldPoint(Input.mousePosition));

        //Vector3 rotacja = mousePos - transform.position;

        //float rotZ = Mathf.Atan2(rotacja.y, rotacja.x) * Mathf.Rad2Deg;
        //transform.rotation = transform.rotation * Quaternion.Inverse(Quaternion.Euler(0, 0, rotZ));

        if(!canFire)
        {
            czas += Time.deltaTime;
            if(czas > czas_max)
            {
                canFire = true;
                czas = 0;
            }
        }

        if(Input.GetKeyDown(0))
        {
            canFire = false;
            shoot;
        }
    }

    void shoot()
    {
        GameObject prefab = Instantiate(pocisk, transform.position, Quaternion.identity);
    }

}

Second script:

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

public class Pocisk : MonoBehaviour
{
    public Schoting sh;

    Vector3 mouse;

    void Start()
    {
        
    }

    void Update()
    {
        //float rotZ = Mathf.Atan2(rotacja.y, rotacja.x) * Mathf.Rad2Deg;
        //transform.rotation = transform.rotation * Quaternion.Inverse(Quaternion.Euler(0, 0, rotZ));

        mousePos = new Vector3(cam.ScreenToWorldPoint(Input.mousePosition));

        if(Input.GetKeyDown(0))
        {
            mouse = sh.mousePos;
        }
        transform.position += mouse;
    }
}

Please help me, I will be very grateful.
(Sorry for language mistakes, but I don’t know English very well)

2

The complete error message contains everything you need to know to fix the error yourself.

The important parts of the error message are:

  • the description of the error itself (google this; you are NEVER the first one!)
  • the file it occurred in (critical!)
  • the line number and character position (the two numbers in parentheses)
  • also possibly useful is the stack trace (all the lines of text in the lower console window)

Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors. Often the error will be immediately prior to the indicated line, so make sure to check there as well.

Look in the documentation. Every API you attempt to use is probably documented somewhere. Are you using it correctly? Are you spelling it correctly? Are you structuring the syntax correctly? Look for examples!

All of that information is in the actual error message and you must pay attention to it. Learn how to identify it instantly so you don’t have to stop your progress and fiddle around with the forum.

Remember: NOBODY here memorizes error codes. That’s not a thing. The error code is absolutely the least useful part of the error. It serves no purpose at all. Forget the error code. Put it out of your mind.