Platform move left and right randomly (859567)

Unity Engine
1

Hi, I am pretty new to Unity and I am trying to make a platform jumping game. I got this script working as it should from a Youtube video but I wanted to make the platform move randomly because I have multiple platforms that gonna spawn when I start the game. So basically when the platform spawn 1 should go from left to right and the other should go from right to left.

public Transform pos1, pos2;
public float speed;
public Transform startPos;
    Vector2 nextPos;
    // Start is called before the first frame update
    void Start()
    {
        nextPos = startPos.position;
    }
    // Update is called once per frame
    void Update()
    {
        if(transform.position == pos1.position)
        {
            nextPos = pos2.position;
        }
        if(transform.position == pos2.position)
        {
            nextPos = pos1.position;
        }
        transform.position = Vector2.MoveTowards(transform.position, nextPos, speed * Time.deltaTime);
    }
2

Since you give 2 points where the platform moves between just let the other start at the opposite side (so exchange the points). And I mean not in code but the “waypoint” gameobjects you drag into the inspector fields of each platform.

It’s preferable to have the same code run/react to different input data than to have to manage such stuff in code since that tends to get really complex fast and is also harder to debug/tune/balance.

Does that help?`If not you should specify more what exactly you need help with in your code.

1 Like
3

I guess this is also a way to do it. But basically, I wanted to have the platform start from a random point from the 2 positions then they can go from left to right or right to left. For example, from pos1 = 1.5f and pos2 = -1.5f, I wanted the platform to start/spawn in a random range between these 2 pos and then move left to right or right to left.

4

Ah I see.
Unity - Scripting API: Vector3.Lerp may help you.

void Start()
{
   transform.position = Vector3.Lerp(pos1, pos2, Mathf.value);
   if(Mathf.value > 0.5f)
   {
       nextpos = pos1;
   }
   else
   {
       nextpos = pos2;
   }
}

Note that Mathf.value returns a pseudorandom value between 0.0f and 1.0f.

1 Like