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Question by TheCookieMan_ · May 31, 2020 at 02:12 PM · c#positionrandom spawn

Random X position 2D

I was trying to make an object move to a random X position. But when I run the code the object just stays in the same position.

 public class RandomSpawn : MonoBehaviour
 {
 
     Rigidbody2D body;
 
     float Y = 3.71f;
 
     public bool findNewPos = false;
 
     float Xmax = 3.71f;
     float Xmin = -6.0f;
     float X = 0f;
 
     Vector2 Pos;
     
 
     // Start is called before the first frame update
     void Start()
     {
       body = GetComponent<Rigidbody2D>();  
 
       findNewPos = true;
     }
 
     void Update()
     {
         if(Y == -3.47f)
         {
             findNewPos = true;
         }
        if(findNewPos == true)
        {
          X = Random.Range (Xmin, Xmax);
          Pos = new Vector2 (X, Y);
          
        }
     }
 
 
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Answer by Mrintoxx · May 31, 2020 at 02:47 PM

You are calculating the new position but never tell to the gameobject to move.You can use transform.Translate. You can also simplify your code :

 Rigidbody2D body;
  
     float Y = 3.71f;
  
     public bool findNewPos = false;
  
     float Xmax = 3.71f;
     float Xmin = -6.0f;
  
     Vector2 Pos;
 
     void Start()
     {
        body = GetComponent<Rigidbody2D>(); 
        findNewPos = true;
     
     }
  
     void Update()
     {
         if(Y == -3.47f) // I don't understand fo what are you doing this ?
         {
             findNewPos = true;
         }
 
         if(findNewPos == true)
         {
             Pos = new Vector2 (Random.Range(Xmin, Xmax), Y);
             transform.Translate(Pos); 
             // body.AddForce(Pos); You can also use the rigidbody you've previously declared
         }
     }

Tell me more about what are you tryin to do, so i can help you better

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avatar image N-8-D-e-v · May 31, 2020 at 06:54 PM 0
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pos should also probably be a vector3 for transform.translate

avatar image Mrintoxx N-8-D-e-v · May 31, 2020 at 07:59 PM 0
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Yeah my bad, i've wrotten that from $$anonymous$$d :) Doc here

avatar image TheCookieMan_ · Jun 05, 2020 at 10:18 PM 0
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I forgot to delete the if statement. That was for when the object reaches a certain level I wanted it to find a new position and go X position and go back up top.

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