How can i move a game object up and down so it acts like a obstacle for my sphere player

Question

the object is a cube which has to go up and come down acting like a obstacle which requires timing to complete THANKS FOR YOUR HELP!!!!

Answer 1

Answer by Dragate · Oct 06, 2017 at 10:24 AM

https://docs.unity3d.com/ScriptReference/Mathf.PingPong.html

    float speed = 1f;
    float delta = 3f;  //delta is the difference between min y to max y.
 
    void Update() {
         float y = transform.position.y + Mathf.PingPong(speed * Time.time, delta); 
         Vector3 pos = new Vector3(transform.position.x, y, transform.position.z);
         transform.position = pos;
     }

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sergeantironpig · Oct 06, 2017 at 11:28 AM 0

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@Dragate i didnot understand the mathf.pingpong part can u help me

Dragate sergeantironpig · Oct 06, 2017 at 11:35 AM 0

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Just like with the ping-pong ball (in the sports game), this function will bring back and forth y's value...from 0 to delta and when it reaches delta value it will start going back to 0 and all over again. We take advantage of that in y axis to make it go up and down.

It's just like Vector3.$$anonymous$$oveTowards() @knorke suggested, but $$anonymous$$athf.PingPong() will take care of the the reverse movement as well.

sergeantironpig Dragate · Oct 06, 2017 at 11:43 AM 0

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sorry to bother you again but how to figure the offset @Dragate

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eatsomechicken · May 31, 2018 at 10:08 PM 0

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I know that this thread has been here some time, but I have like the same problem. When I put your code in, it keeps telling me that there is an unexpected symbol ")". What is going on? Can u help me?

mateov951 · Jan 29, 2020 at 07:47 PM 0

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$$anonymous$$ade a few changes and it worked for me.

 void Update() {
     float y = $$anonymous$$athf.PingPong(speed * Time.time, delta);
     Vector3 pos = new Vector3(transform.position.x, y, transform.position.z);
     transform.position = pos;
 }

adding transform.position.y was creating an infinite movement towards y+

Answer 2

Answer by knorke · Oct 06, 2017 at 10:17 AM

Use the MoveTowards function

 transform.position = Vector3.MoveTowards(firstPosition, endPosition, speed);

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sergeantironpig · Oct 06, 2017 at 10:19 AM 0

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thanks bro

Answer 3

Answer by wizbit · Oct 06, 2017 at 11:39 AM

Hey

you can use a Co-Routine and use Vector3.Lerp

 IEnumerator move(Transform _transform)
     {
         startPos = _transform.position;
         t = 0;
 
             endPos = new Vector3(startPos.x + System.Math.Sign(input.x) *  startPos.y = System.Math.Sign(input.y), startPos.z);
         
 
         factor = 1f;
 
         while (t < 1f)
         {
             t += Time.deltaTime * moveSpeed * factor;
             _transform.position = Vector3.Lerp(startPos, endPos, t);
 
             yield return null;
         }
 
         yield return 0;
     }

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sergeantironpig · Oct 07, 2017 at 02:43 AM 0

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what do you mean by factor??? @wizbit

How can i move a game object up and down so it acts like a obstacle for my sphere player

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