Moving a fixed distance over a set time.

[system]

I need to move an object a set distance over a certain amount of time. Example: I want it to move exactly 8 units over 3 seconds.

I need to be able to do this without using iTweens. Any help with this would be great!

[anon73820239]

Using coroutines is the easiest.

static function MoveOverTime( theTransform : Transform, d : Vector3, t : float )
{
    var rate : float = 1.0/t;
    var index : float = 0.0;
    var startPosition : Vector3 = theTransform.position;
    var endPosition : Vector3 = startPosition + d;
    while( index < 0.0 )
    {
        theTransform.position = Vector3.Lerp( startPosition, endPosition, index );
        index += rate * Time.deltaTime;
        yield;
    }
    theTransform.position = endPosition;
}

If you’d place this in a script named AnimationFunction, for instance, you can then from any script call it like this:

function Start()
{
    AnimationFunction.MoveOverTime( transform, Vector3( 0, 0, 8 ), 3.0 );
}

Which will move it eight units (over the z axis) in three seconds.