Random.Range Documentation

Archived Forums Questions & Answers
1

Docs Copy

Random.Range
static float Range(float min, float max);
Description

Returns a random float number between and min [inclusive] and max [inclusive] (Read Only).

I random float max inclusive or not?

2 Answers

2
2

Yes, it’s inclusive, as stated in the docs. Note however that the int Random.Range is exclusive of the Max value.

3

In Unity 4.67f1, code documentation states it is inclusive although the online documentation states it is exclusive => test reveals it is exclusive

using UnityEngine;
using UnityEditor;
     
public class TestEditor : MonoBehaviour
{
    // Random.Range( int, int ): code docu states it is inclusive, online docu says it is exclusive
    [MenuItem("Tools/Test/Is Random.Range( int, int ) inclusive or exclusive")]
    static void TestRandomRangeInt()
    {
        const int TRIES = 1000000;
        bool isInclusive = false;
        for( int i = 0; i < TRIES; i++ )
        {
            int r = Random.Range( 0, 2 );
            if( r == 2 )
            {
                isInclusive = true;
                break;
            }
        }

        if( isInclusive )
        {
            Debug.LogWarning( "Random.Range( int, int ) is inclusive!" );
        }
        else
        {
            Debug.Log( "After " + TRIES + " tries Random.Range( int, int ) was not inclusive" );
        }
    }
}