Integrating random values in Unity3d works incorrectlly-CodePudding

I have simple script:

using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;

public class DLATEST : MonoBehaviour
 {
     int wx = 0;
     
     // Start is called before the first frame update
     void Start()
     {
         
     }
 
     // Update is called once per frame
     void Update()
     {
         wx  = Random.Range(-1, 1);
         
         Debug.Log(wx);
     }
 }

but I have weird results: 0 -1 -2 -3 -4 -5 -6 -7 -8

wx slowly declines to negatives until it overflows.

I expect that wx will have values near 0 and slowly change around it, but not decline as it have. This is simple numerical integration but it works incorrectly.

I have also tried this code:

int wx = 0;
int wxPrev = 0;
 
 // Start is called before the first frame update
 void Start()
 {
     
 }

 // Update is called once per frame
 void Update()
 {
     wx = wxPrev   Random.Range(-1, 1);
     
     Debug.Log(wx);
     wxPred = wx;
 }

Results are the same.

If I debug Random.Range(-1, 1) only then everything is ok, random values are random.

What is wrong in my code? Thank you.

CodePudding user response：

If you use Random.Range(int x, int y) the result will be >= x && < y

In your case Random.Range(-1,1) always returns -1 or 0. You probably needed Random.Range(-1f,1f) - to force using Random.Range(float,float) instead of random int or change to Random.Range(-1,2) so it woult return integer -1, 0 or 1 randomly