Check how long a Ray is hitting an object

Unity Engine
1

Hey guys.

I am wondering what the best way would be to check how long a ray is hitting an object. Basically I want to fire some logic, but only after a ray has collided with an object for X seconds.

Thanks!

2

Raycasts live from frame to frame they don’t have a concept of time, you have to tally(is that the right spelling?, count) them yourself.
Keep a variable ‘start’ when the first one hits, something like this

float hitTime;
float maxTime;
Collider col;

void Foo(){
Raycast hit;
if(Physics.Raycast( do your ray, out hit)){

if( hit.collider == col){ // this is the same collider from last frame
if(startTime + maxTime > Time.time){//check if time has passed, meaning we were pointing at collider col for maxTime
//Do w/e
}

}else{
startTime = Time.time;
col = hit.collider;
}
} else{
startTime = 0.0f;
col = null;
}
}

Oh shit it ain’t formatted, oh well… :shrug: