Problem with falling platform script

Scripting
1

Greetings community and please help me.

I am stuck with one problem in my script. Basically script should make platform fall after 3 seconds as soon as it collided with a specified game object.

Here is my script:

var fallTime: float = 3.0; //Interval to fall
private var fall: float;//Time to fall
private var canFall: boolean;
var object: GameObject;
private var rb: Rigidbody;//Object rigidbody;

function Start(){
	canFall = false;	
	fall = 0.0;
}

function OnTriggerEnter(col: Collider){
	if(col.gameObject.tag == "EarthSpirit"){
		Debug.Log("PlatformWillFall");
		canFall = true;
		rb = object.gameObject.AddComponent(Rigidbody);
		rb.useGravity = false;
	}
}

function Update(){
	Debug.Log(Time.time);	
	if(canFall  Time.time > fall){
		fall = Time.time + fallTime;
		rb.useGravity = true;
	}
}

The problem is that as soon as game object collides with a platform, it falls down with no delay. I think problem is in Time.time, because it is calculating from the moment scene starts.

Thanks for any help in advance.

2

ok, you need a “start” time when the collision happens, and the update should be checking for TimeNow > StartTime + Delay

so somewhere in the OnTriggerEnter function you need something like

startTime = Time.time;

and the if in the Update function should look something like

if(Time.time > startTime + delay)
{
...
3

Hmm… Tried your solution and it is still not working…

startTime = Time.time still calculates time no matter what ( and yeah i inserted it in OnTriggerEnter function ). I logged its value and it shows that as soon as game object reaches trigger and collision occurs, value of startTime variable already over 3 seconds.

Any ideas?

4

yes, Time.time starts when you hit play…

Time.time at start 0
collision happens at Time.time = 10 → store the Time.time into StartTime var
in each update, check if Time.time > StartTime (ie 10) + Delay (ie 3)
when Time.time > 13 the contents of the if block happens.

actually there’s an example of a delay on Time.time reference page: Unity - Scripting API: Time.time

5

Oh yeah, that’s right… Thanks my friend