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Question by caiodmk · Oct 03, 2011 at 12:04 AM · c#movingbox

Moving box

I'm working on a game where the player has to pass through a room where some rocks move back and forth, opening and closing the way. I can get the rocks to move using a script with a timer, when it reachs a certain number the rocks changes direction. Is there anyway I can write a script like, "if the rock gets to a certain position it changes direction"? It needs to b done using C#.

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Answer by syclamoth · Oct 03, 2011 at 01:28 AM

You could do something like-

 public Vector3 targetPos1;
 public Vector3 targetPos2;

 public float moveTime;

 float curMoveProportion = 0;
 Vector3 targetPos = Vector3.zero;
 Vector3 prevPos = Vector3.zero;

 // in Start, set up whichever is the first position to be going to
 void Start()
 {
     targetPos = targetPos2;
     transform.position = targetPos1;
     prevPos = transform.position;
 }

 // in Update, move the box around between the two points
 void Update()
 {
     curMoveProportion += (Time.deltaTime / moveTime);
     if(curMoveProportion >= 1)
     {
         if(targetPos == targetPos1)
         {
             targetPos = targetPos2;
         } else {
             targetPos = targetPos1;
         }
         prevPos = transform.position;
         curMoveProportion = 0;
     }
     transform.position = Vector3.Lerp(prevPos, targetPos, curMoveProportion);
 }
 
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avatar image caiodmk · Oct 03, 2011 at 02:15 AM 0
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Solved, found a way to discover the position, thanks alot syclamoth

avatar image syclamoth · Oct 03, 2011 at 03:36 AM 0
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If you're using transforms, you can get the position using transform.position.

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Answer by caiodmk · Oct 03, 2011 at 03:30 AM

I'm very new to unity and C#, I tried to understand the code. The problem I'm having now is i don't know how to set targetPos1 and targerPos2 as a certain position. I tried to convert them into Transform instead of Vector3(so i can create an Empty Object and place it where i want), but this provides an error. How do i set up where my 2 key posisions will be?

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