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Question by LeftyTwoGuns · Sep 03, 2014 at 10:23 PM · raycastcollidertag

Checking raycast hit on tagged collider- "Cannot implicitly convert type 'string' to 'bool'"

I'm trying to make a locational damage system where the raycast checks the tag of the bone collider and sends the appropriate amount of damage. But apparently I'm not understanding how to check a tagged collider.

 Ray ray = new Ray(m_Transform.position, transform.forward);
           RaycastHit hit;
 
 if (Physics.Raycast(ray, out hit, Range){
 
          if(hit.collider.tag = "EnemyHead"){
 
                 Debug.Log("HeadHit!!");
 
             }
 
 }

But that tells me Cannot implicitly convert type 'string' to 'bool'

What am I missing?

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Answer by kacyesp · Sep 03, 2014 at 10:25 PM

You were missing an equals sign.

 Ray ray = new Ray(m_Transform.position, transform.forward);
           RaycastHit hit;
  
 if (Physics.Raycast(ray, out hit, Range){
  
          if(hit.collider.tag == "EnemyHead"){
  
                 Debug.Log("HeadHit!!");
  
             }
  
 }

You could also use this which is a bit more readable:

 if ( hit.collider.compareTag("EnemyHead") )

Although equivalent, compareTag() removes the ambiguity of whether "==" will compare the refernces pointing to the string or the characters in the strings. In Java ( and I'm sure other languages ), comparing string literals with "==" would return false. It's only fine in C# because the '==' is an overloaded operator.

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avatar image LeftyTwoGuns · Sep 03, 2014 at 10:33 PM 1
Share

Damn! Lol but I like the CompareTag better, didn't know about that, so thanks a bunch.

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