Need help for AI Wandering

Hi, I'm trying to have my enemies and Allies wander around, but they never go down or to the left, its to the point where you cant just write it off as random chance. it seems that they don't want to go in negative directions, but I don't understand why, I could really use some help with this. here's my wandering code. Thanks in advance!

Code (CSharp):

1.     void Wander()
2.     {
3.         //Wander around, trying to find a target.
4.  
5.         if (PaceLength > 0)
6.         {
7.  
8.  
9.             rb.MovePosition(rb.position + MoveVelocity * Time.deltaTime);
10.             PaceLength -= Time.deltaTime;
11.         }
12.         else if (Patience <= 0)
13.         {
14.             PaceLength = StartPaceLength;
15.             Patience = StartPatience;
16.  
17.  
18.             Decision = Rand.Next(1, 3);
19.             if (Decision == 1)
20.                 WanderX = 1;
21.             else if (Decision == 2)
22.                 WanderX = 0;
23.             else if (Decision == 3)
24.                 WanderX = -1;
25.  
26.             if (WanderX == 0)
27.             {
28.                 Decision = Rand.Next(1, 2);
29.                 if (Decision == 1)
30.                     WanderY = 1;
31.                 else if (Decision == 2)
32.                     WanderY = -1;
33.             }
34.  
35.             if (WanderX != 0)
36.             {
37.                 Decision = Rand.Next(1, 3);
38.                 if (Decision == 1)
39.                     WanderY = 1;
40.                 else if (Decision == 2)
41.                     WanderY = 0;
42.                 else if (Decision == 3)
43.                     WanderY = -1;
44.             }
45.  
46.             MoveVelocity.x = WanderX * speed;
47.  
48.             MoveVelocity.y = WanderY * speed;
49.  
50.  
51.  
52.         }
53.         else
54.         {
55.  
56.             Patience -= Time.deltaTime;
57.         }
58.  
59.     }

 

Hey,

according to this example:
https://docs.microsoft.com/de-de/dotnet/api/system.random.next?view=netframework-4.7.2
you need to add 1 to the max value. But I don‘t know that function.

Edit: Funny. I actually got into the .net reference when I browsed the C# reference... never mind though. But I still guess that‘s the issue here.

 

English version: https://docs.microsoft.com/en-us/dotnet/api/system.random.next?view=netframework-4.7.2

 

thanks, this was really helpful!