How to move smoothly without using iTween?

Question

I have some objects. They move 1 unit(tile) pr. jump. When they move, I would like to make them move fast, but smooth (with a little ease in/out).

The next move can only happend when the first has completed, so holding the JUMP LEFT key will make it jump smoothly over time.

I am looking for a way to implement this.

At the moment I have a hard jump which works, but looks ugly:

 void Update()
 {
     if (Input.GetKeyUp(KeyCode.LeftArrow)) 
     {
         playerPos.X --;
     }

     if (Input.GetKeyUp(KeyCode.RightArrow)) 
     {
         playerPos.X ++;
     }

    goPlayer.transform.position = playerPos;
 }

I've removed all the position checks and other unimportant stuff so focus can stay on the smooth movement.

I would like to break this down with a smoother jump, that would take lets say 0.5 sec.

I believe I need some kinda of way telling that I am currently in a move, so I cant move again and perhaps make a playerTargetPos too which I use for the movement?

Answer 1

Best Answer

Answer by Eric5h5 · Aug 29, 2011 at 12:34 AM

Use MoveObject. It doesn't have easing, but you can add that easily by changing the Lerp line in the Translation function from this:

 thisTransform.position = Vector3.Lerp(startPos, endPos, t);

to this:

 thisTransform.position = Vector3.Lerp(startPos, endPos, Mathf.SmoothStep(0.0, 1.0, t));

Use coroutines instead of Update to make things easier.

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BerggreenDK · Aug 29, 2011 at 07:56 AM 0

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Thank you Eric! always a pleasure to read your answers.

How to move smoothly without using iTween?

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