2D Platformer shooting

How do i fix the position of the bullet sprite when character flips.
Im using this as a reference but in code he uses his mouses position for the direction and not just vertical/horizontal.

Heres the script im using, its not finished because i wouldnt know what to call to flip it.
I have FirePoint gameObject at the tip of the assault rifle, i thought by default it would flip since its a child under character..

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class Shooting : MonoBehaviour {
5.  
6.     public GameObject shot;
7.     public float Damage = 10;
8.     public float fireRate = 0;
9.  
10.     float timeToFire = 0;
11.     Transform firePoint;
12.  
13.     // Use this for initialization
14.     void Awake () {
15.         firePoint = transform.FindChild("FirePoint");
16.         if (firePoint == null)
17.         {
18.             Debug.LogError("No FirePoint located");
19.         }
20.  
21.     }
22.  
23. // Update is called once per frame
24. void Update () {
25.         if (fireRate == 0)
26.         {
27.             if (Input.GetButtonDown("Fire1"))
28.             {
29.                 Shoot();
30.             }
31.         }
32.         else
33.         {
34.             if(Input.GetButton ("Fire1") && Time.time > timeToFire)
35.             {
36.                 timeToFire = Time.time + 1 / fireRate;
37.                 Shoot();
38.             }
39.         }
40.    
41.     }
42.  
43.     void Shoot()
44.     {
45.         Instantiate(shot, firePoint.position, firePoint.rotation);
46.         Vector2 firePointPosition = new Vector2(firePoint.position.x, firePoint.position.y);
47.         RaycastHit2D hit = Physics2D.Raycast (firePointPosition, )
48.     }
49. }
50.  
51.  

 

The way I'm doing it, is I have two fireTransform (same as your FirePoint) game objects that I use to spawn my bullet object. One faces left, one faces right (flipped 180 degrees on z axis)

If you can detect which way your sprite is facing, you can choose which point to fire out of. I assume you're just flipping it's scale on the X-axis, so you can set the script to change the firing point based on what the x-scale of the player sprite is.

 

yes you can use another transform var and call on it when player is facing the negative side of the local scale plane but i really do want to be efficient here and i can see bugs with that in the future.

 

It's either that or stick a script on your FirePoint to move and rotate it to the correct place.

EDIT: Or, just have one FirePoint, with no bells attached, and when you turn your sprite around, use the negative X of your firepoint and whack 180 degrees on the rotation. Should have the same effect. Two seperate fireTransforms is working fine for me so far but I have to replace that code with something a little more elaborate later on anyway.

 

i only need the prefab to point to the direction of the gun. Im sure its an easy fix, is there any other tuts out there for it that i can cross reference?

 

thank for replying, i do need another perspective

 

Ah, idea. Instead of flipping localScale to turn the prefab around, turning it through 180 on the Y axis should have the same effect and in theory might just affect your FirePoint.

 

Fixed it.

While using an object as a substitute for the mousePosition that is just like FirePoint game object (just positioned alittle to the right) i was able to make it shoot straight in front of the gun no matter which way its facing.

New variable (copy of firePoint just positioned to the right)

Code (CSharp):

1. Transform endPoint;

Calling it in the this function (Script made by brackeys, modified to fit classic platformers)

Code (CSharp):

1.  void Shoot()
2.     {
3.         Vector2 endPosition = new Vector2(endPoint.position.x, endPoint.position.y);
4.         Vector2 firePointPosition = new Vector2(firePoint.position.x, firePoint.position.y);
5.         RaycastHit2D hit = Physics2D.Raycast(firePointPosition, endPosition - firePointPosition, 100, whatToHit);
6.         Debug.DrawLine(firePointPosition, (endPosition-firePointPosition)*100, Color.cyan);
7.         if(hit.collider != null)
8.         {
9.             Debug.DrawLine(firePointPosition, hit.point, Color.red);
10.             Debug.Log("We hit" + hit.collider.name + " and did" + Damage + " damage");
11.         }
12.     }

 

Hi guys,

My line won't draw to the end point. It acts as if there is another fixed end point below my player (when i jump its above my player) even though there isn't. here is my code:

Thanks!