Shooting a bullet in 2D Game

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PlayerControl : MonoBehaviour
6. {
7.     //Player's Bullet Prefab, BulletPositions
8.     public GameObject playerBulletGo;
9.     public GameObject bulletPosition01;
10.     public GameObject bulletPosition02;
11.  
12.  
13.     //what I tried
14.     //public Transform bulletPosition01;
15.     //public Transform bulletPosition02;
16.  
17.     //for the speed of Player
18.     public float speed;
19.  
20.  
21.     // Use this for initialization
22.     void Start ()
23.     {
24.        
25.     }
26.    
27.     // Update is called once per frame
28.     void Update ()
29.     {
30.         if (Input.GetKeyDown (KeyCode.Space))
31.         {
32.             //instantiate bullets from position01
33.             GameObject bullet01 = (GameObject)Instantiate (playerBulletGo);
34.             //seeting the bullet's initial posiiton
35.             bullet01.transform.position = bulletPosition01.transform.position;
36.  
37.             //instantiate bullets from position02
38.             GameObject bullet02 = (GameObject)Instantiate (playerBulletGo);
39.             //seeting the bullet's initial posiiton
40.             bullet02.transform.position = bulletPosition02.transform.position;
41.  
42.             //what I tried
43. //            Instantiate (playerBulletGo, bulletPosition01);
44. //            Instantiate (playerBulletGo, bulletPosition02);
45.  
46.         }

this is my code for making SpaceShooter 2D

here for shooting bullets, in the video i am watching,

first, instantiate the bullet's prefab and set the bullet's initial position by using transform.position property of shootingpositon game object

but I tried another way, creating a public GameObject variable for bulltPosition

and simply put "instantiate()" with second argument

but the result was weird

butllet was instantiate not from "bulletPosiiton"

I want to know the rason

Thank you

 

Check out the documentation for Instantiate

You need to pass in a Vector3 for the position, and a Quaternion for rotation. So it would be bulletPosition01.transform.position, not just the game object itself.

Instantiate(playerBulletGo, bulletPosition01.transform.position, Quaternion.identity)