unity3d中切换武器

//NextWeapon.js ---------------------------------------------------------- By Henry Xie

//宣告 : 使用介面模版、武器順序、目前及下一個武器(取得名稱用)、3把武器、二個前段介面文字
var MySkin : GUISkin;
var WeaponSort : int = 0;
private var CurrentWeapon : GameObject;
private var NextWeapon : GameObject;
var Weapon0 : GameObject;
var Weapon1 : GameObject;
var Weapon2 : GameObject;
var FrontText1 = "切換武器為 : ";
var FrontText2 = "目前武器名稱/順序 : ";

//介面功能 : 如果按下切換武器按鈕時，武器順序加1 --------------------------------------
//介面文字 : 目前武器名稱/順序 + / + 目前武器名稱
function OnGUI()
{
   GUI.skin = MySkin;
   if(GUI.Button(Rect(20, 200, 150, 30), FrontText1 + NextWeapon.name))
   {
      WeaponSort ++;
   }
   GUI.Label(Rect(200, 5, 300, 30), FrontText2 + CurrentWeapon.name + "/" + WeaponSort);
}

//功能 : 每個 frame 都執行一次 --------------------------------------------------------
//如果武器順序為0，則目前武器為武器0;下一把武器為武器1;開啟武器0;關閉武器1及2，以此類推
//如果武器順序大於等於3，則歸0 (形成循環)
function Update()
{
   if(WeaponSort == 0)
   {
      CurrentWeapon = Weapon0;
      NextWeapon = Weapon1;
      Weapon0.active = true;
      Weapon1.active = false;
      Weapon2.active = false;
   }
   if(WeaponSort == 1)
   {
      CurrentWeapon = Weapon1;
      NextWeapon = Weapon2;
      Weapon0.active = false;
      Weapon1.active = true;
      Weapon2.active = false;
   }
   if(WeaponSort == 2)
   {
      CurrentWeapon = Weapon2;
      NextWeapon = Weapon0;
      Weapon0.active = false;
      Weapon1.active = false;
      Weapon2.active = true;
   }
   if(WeaponSort >= 3)
   {
      WeaponSort = 0;
   }
}