Do an action when I'm moved determined distance

Hello.
I'm making a game and I want to do an action, for example print a text in the console, but only print the text one time, when I'm moved a determined distance. I made this script but does not work:
(I use this script also for show the Walked distance in the screen.)

Code (JavaScript):

1. var WalkedDistance : float = 0;
2. var lastPosition : Vector3;
3. var style : GUIStyle;
4.  
5. function Start()
6. {
7. lastPosition = transform.position;
8. }
9.  
10. function Update() {
11. WalkedDistance += Vector3.Distance(transform.position, lastPosition);
12.  
13. lastPosition = transform.position;
14.  
15. if(WalkedDistance >= 100){   //This does not work
16.     print("TEXT");
17. }
18. }
19.  
20. function OnGUI()
21. {
22.     GUILayout.Label("Walked distance = " + WalkedDistance);
23. }
24.  

I hope someone can help me. Kind regards.

 

The distance walked on any frame will never exactly equal 100.
It will be off by some decimal amount.

Try this:
if(WalkedDistance > 100)

 

I think in it, but if I use this script, then, the message will print infinite times and I want to print the message only one time. Would you know how to do it? c:
Thanks for reply.

 

you can create a flag boolean hasGone100
set that to true inside the "if" statement
and test for it too

if(WalkedDistance > 100 && hasGone100 == false)
hasGone100 = true;

 

I'm a bit noob in programming and Unity 3D and... how I create a flag boolean?

 

There was no reply box in the message you sent me, not sure why.
So I will answer here.

If this is actually a project, then it sounds like school homework and you should do it yourself.
If you dont know how to declare a boolean, or what one even is, you need to read a book, not ask questions on a forum.
Thats the best advice I can give you.

 

Ok. Indeed the project isn't serious, just I'm doing it to learn and have fun xD
I searched how to a create a flag boolean and I wrote this script:

Code (JavaScript):

1. var WalkedDistance : float = 0;
2. var lastPosition : Vector3;
3. var style : GUIStyle;
4. var hasGone100  : boolean = false;
5.  
6. function Start()
7. {
8. lastPosition = transform.position;
9. }
10. function Update() {
11. WalkedDistance += Vector3.Distance(transform.position, lastPosition);
12. lastPosition = transform.position;
13. if(WalkedDistance > 10 && hasGone100 == false) {
14.     hasGone100 = true;
15.     print("TEXT");
16. }
17. }
18. function OnGUI()
19. {
20.     GUILayout.Label("Walked distance = " + WalkedDistance);
21. }

Now works correct Thank you very much for your help

 

You're welcome.
Congrats on figuring out the last part yourself