Mathf.Sign

설명

Returns the sign of f.

Returns a value of 1 when f is 0 or greater. Returns a value of -1 when f is negative.

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        Debug.Log(Mathf.Sign(-10));
        Debug.Log(Mathf.Sign(10));
    }
}