public static float Distance (Vector3 a, Vector3 b);

説明

Returns the distance between a and b.

Vector3.Distance(a,b) is the same as (a-b).magnitude.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform other; void Example() { if (other) { float dist = Vector3.Distance(other.position, transform.position); print("Distance to other: " + dist); } } }