Raycast test object tag script issues

Questions & Answers
1

I have a script that sends out a raycast from the player to test if it hits a specific object (a battery). I have a mesh collider on the battery and a tag called “battery” assinged to it. Here is the script that I have on the player, however it doesn’t work:

using UnityEngine;
using System.Collections;

public class ObjectInteract : MonoBehaviour {
public RaycastHit hit;
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
		Ray ray = Camera.main.ScreenPointToRay (new Vector3(Screen.width/2,Screen.height/2,0));
		
		if (Physics.Raycast (ray, out hit, 2)){
			if (hit.collider.tag == "Battery"){
			Debug.Log ("Hit Battery");	
			}
		}
	}
}

Any ideas?

2

You need to check your case. One is “battery” with a lowercase b and you are checking for an uppercase b “Batter”.

If this happens often you may want to do something like:

if (hit.collider.tag.ToLower() == "battery")
3

try changing the ray length and testing it that way cause two is a short value try setting it to 10 then adjusting the length of the ray later depending on how far out the item is that you want to interact with, 2 may be too short for the main camera to actually cast a ray out and hit it

    try the below code 

    using UnityEngine;
    using System.Collections;
     
    public class ObjectInteract : MonoBehaviour {
    public RaycastHit hit;
    public float RayLength = 10;
    // Use this for initialization
    void Start () {
     
    }
     
    // Update is called once per frame
    void Update () {
    Ray ray = Camera.main.ScreenPointToRay (new Vector3(Screen.width/2,Screen.height/2,0));
     
    if (Physics.Raycast (ray, out hit, RayLength)){
    if (hit.collider.tag == "Battery"){
    Debug.Log ("Hit Battery");
    }
    }
    }
    }