# Problem with falling platform script
**URL:** https://discussions.unity.com/t/problem-with-falling-platform-script/500164
**Category:** Scripting
**Tags:** Scripting
**Created:** [March 19, 2013, 9:45am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164 "2013-03-19T09:45:20Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@doubleJ](https://discussions.unity.com/u/doubleJ)
#### Post date: [March 19, 2013, 9:45am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164/1 "2013-03-19T09:45:20Z")
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:
```auto
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.
---
### Author:  [@LeftyRighty](https://discussions.unity.com/u/LeftyRighty)
#### Post date: [March 19, 2013, 9:58am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164/2 "2013-03-19T09:58:59Z")
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
```auto
startTime = Time.time;
```
and the if in the Update function should look something like
```auto
if(Time.time > startTime + delay)
{
...
```
---
### Author:  [@doubleJ](https://discussions.unity.com/u/doubleJ)
#### Post date: [March 19, 2013, 10:29am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164/3 "2013-03-19T10:29:04Z")
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?
---
### Author:  [@LeftyRighty](https://discussions.unity.com/u/LeftyRighty)
#### Post date: [March 19, 2013, 10:41am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164/4 "2013-03-19T10:41:43Z")
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](http://docs.unity3d.com/Documentation/ScriptReference/Time-time.html)
---
### Author:  [@doubleJ](https://discussions.unity.com/u/doubleJ)
#### Post date: [March 19, 2013, 11:01am UTC](https://discussions.unity.com/t/problem-with-falling-platform-script/500164/5 "2013-03-19T11:01:02Z")
Oh yeah, that’s right… Thanks my friend