cat*_*ror 4 c# unity-game-engine
抱歉问了这个愚蠢的问题,我是 Unity 脚本的新手。
我需要创建一个类实例,任何场景中的组件都需要共享和访问该实例。
我可以轻松创建一个静态类并在组件脚本中使用它,但我的类具有繁重的网络和处理能力,并且由于我只需要处理它一次,因此最好只创建一个实例。
是否可以做类似的事情?例如:
// The class which I need to create and share
public class DemoClass {
MyExampleClass example;
public DemoClass (){
example = new MyExampleClass ();
}
public MyExampleClass GetClassInstance(){
return example;
}
}
// The "Global Script" which I'll instantiate the class above
public class GlobalScript{
MyExampleClass example;
public void Start(){
DemoClass demoClass = new DemoClass();
example = demoClass.GetClassInstance();
}
public MyExampleClass getExample(){
return example;
}
}
// Script to insert in any component
public class LoadMyClass : MonoBehaviour {
public void Start(){
// this is my main issue. How can I get the class Instance in the GlobalScript?
// the command below works for Static classes.
var a = transform.GetComponent<GlobalScript>().getExample();
}
}
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对此的任何提示将不胜感激。
谢谢。
从简单的角度来看,单例模式似乎是正确的选择(如上所述)。虽然不是来自官方 Unity 资源,但这里有一个教程的链接以及一个记录得相当好的代码示例。
http://clearcutgames.net/home/?p=437
单例示例:
using UnityEngine;
public class Singleton : MonoBehaviour
{
// This field can be accesed through our singleton instance,
// but it can't be set in the inspector, because we use lazy instantiation
public int number;
// Static singleton instance
private static Singleton instance;
// Static singleton property
public static Singleton Instance
{
// Here we use the ?? operator, to return 'instance' if 'instance' does not equal null
// otherwise we assign instance to a new component and return that
get { return instance ?? (instance = new GameObject("Singleton").AddComponent<Singleton>()); }
}
// Instance method, this method can be accesed through the singleton instance
public void DoSomeAwesomeStuff()
{
Debug.Log("I'm doing awesome stuff");
}
}
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如何使用单例:
// Do awesome stuff through our singleton instance
Singleton.Instance.DoSomeAwesomeStuff();
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