Gizmos.DrawWireSphere 绘制线框球体

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public float explosionRadius = 5.0F;
	void OnDrawGizmosSelected() {
		Gizmos.color = Color.white;
		Gizmos.DrawWireSphere(transform.position, explosionRadius);
	}
}

var explosionRadius = 5.0;
function OnDrawGizmosSelected () {
	// Display the explosion radius when selected
	//当选择的时候显示一个白色球体线框
	Gizmos.color = Color.white;
	Gizmos.DrawWireSphere (transform.position, explosionRadius);
}