Check if Object is itself. C#

Archived Forums Questions & Answers
1

is there anyone out there who knows how i can check if the colliding object is object?
what i accualy mean is, is there something to do the following:

public Transform SomeOBject;
void OnCollidionEnter (Collision other){
if(other==SomeObject){
print(“other is SomeObject”);
}
}

is there anything that does this? cause what i just typed is not possible, and gives shitloads of errors.
many thanks to the people who awnser!

I can probably give you the answer you're looking for, but first I need to know: How is the other object created? How are you keeping track of it? (Which might be the whole issue - if you're not) Is the "SomeObject" a "type" or a specific instance of an object?

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3 Answers

3
2

Collision is not the same as Transform; they are two different types so they can’t be compared with operator ==. You can however compare two of the same type are identical.

All MonoBehaviour have access to these objects, you just need access to them by their identifiers: transform, Unity - Scripting API: Component.collider, rigidbody, and gameObject.

From here, you can see that Collision has information stored about the object it berlongs to. Namelt, it has a rigidbody, a transform, a gameObject, and a collider references.

Take your pick of which one you want to use.

3

Just a shot in the dark, try:

if(other.transform == SomeObject)

instead of

if(other==SomeObject)

public Transform SomeObject;
 void OnCollidionEnter (Collision other)
 {
     if(other.transform == SomeObject)
     { 
         print("other is SomeObject"); 
     }
 }

tried, but without succes D:

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That's odd - this is how I'd do it. You're not accidentally checking against a prefab are you?

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not where i'm aware of. the SomeObject that i'm trying to compare is found by this Transform nextWaypoint = transform.Find("/" + WaypointBox + "/Lvl_Test_Waypoint_" + WaypointBox + "_" + TenWayNum + OneWayNum); and the "other" is set by the trigger it in. and i dont get a Null when i print the transform.find.

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And they're directly connected - the collider is on the way point? And you have spelled it OnCollisionEnter not OnCollidonEnter as it appears in your question and this answer?

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yes the collider is in on the waypoint, and i'm using OnTriggerEnter, and yes the collider is checked as trigger.

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4

Well, if it’s the same type of object and there are multiple of them, you should give each object the same tag.

Then in your OnCollisionEnter function will be something like this:

void OnCollisionEnter( Collision other ) {
   if(other.tag == 'tag goes here'){
       print(other is other);
   }

It’s also possible to use other.gameObject.name in place of the tag

i'm already using tags right now, but i got multiple objcets with this tag, cause they are the same. but it needs to check for 1 specific object.

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