Unity3D笔记英保通三脚本编写、物体间通信

一、脚本编写

1.1、同一类型的方法JS和C#的书写方式却不一样主要还是语法，在工程中创建一个Cube 分别把JSTest.js和CSharp.cs 添加到Cube中

JSTest.js

#pragma strictprivate var i:int;private var f:float;
function Start () {}function Update () {}function SetInt(_i:int)
{i=_i;
}
function SetFloat(_f:float)
{f=_f;
}function GetInt():int
{return i;
}function GetFloat():float
{return f;
}

CSharp.cs

using UnityEngine;
using System.Collections;public class CSharpTest : MonoBehaviour {// Use this for initializationvoid Start () {}// Update is called once per framevoid Update () {}int i;float f;public void SetInt(int i){this.i = i;}public void SetFloat(float f){this.f = f;}public int GetInt(){return i;}public float GetFloat(){return f;}
}

1.2、JS，C#调用方法赋给Main Camera

MainJS.js

#pragma strictvar obj:GameObject;
function Start () {obj=GameObject.Find("Cube");var js:JSTest=obj.GetComponent(JSTest);js.SetInt(1);js.SetFloat(1.1);print("JS GetInt  :"+js.GetInt());print("JS GetFloat:"+js.GetFloat());
}function Update () {}

MainCharp.cs

using UnityEngine;
using System.Collections;public class MainCSharp : MonoBehaviour {GameObject obj;// Use this for initializationvoid Start () {obj = GameObject.Find ("Cube");CSharpTest cs = obj.GetComponent<CSharpTest> ();cs.SetInt (11);cs.SetFloat (11.11f);Debug.Log ("C# GetInt  "+cs.GetInt());Debug.Log ("C# GetFloat  "+cs.GetFloat ());}// Update is called once per framevoid Update () {}
}

1.3、看看结果

结果有点意外：JS应该先执行，为什么出来的顺序是这个？

"Standard Assets"、 "Pro Standard Assets" 和 "Plugins" 这三个目录里的脚本被最先编译，"Editor"目录里的稍后编译，其他的脚本最后编译。

二、物体间通信

　　2.1、

　　GameObject.SendMessage:向自身的脚本中发送消息
　　GameObject.BroadcastMessage：向自身及子物体的脚本中发送消息
　　GameObject.SendMessageUpwards：向自身及父物体中发送消息（先发给自己在发送给其他物体）

例如：子类Sphere对应脚本sendMessage.cs 父类Cube对应脚本receiveMessage.cs

sendMessage.cs

using UnityEngine;
using System.Collections;public class sendMessage : MonoBehaviour {// Use this for initializationvoid Start () {gameObject.SendMessageUpwards("SendMsgParent", "Hello 来自子类Sphere");}// Update is called once per framevoid Update () {}void SendMsgParent(string msg){Debug.Log("我是子类Sphere，子类发来的消息：" + msg);}
}

receiveMessage.cs

using UnityEngine;
using System.Collections;public class receiveMessage : MonoBehaviour
{// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){}void SendMsgParent(string msg){Debug.Log("我是父类Cube，子类发来的消息：" + msg);}
}

最终结果

发送消息：先发送给自己在发送给其他物体

2.2、上面有个缺陷就是必须是继承关系方可传递消息

　　解决方案：可以用C# 委托和事件机制来改变，可以实现不同物体间的进行消息传递

步骤：新建两个GameObject ：EventCube、ListenCube 做事件和监听。对应分别的cs文件EventCube.cs、ListenCube.cs

EventCube.cs

using UnityEngine;
using System.Collections;public class EventCube : MonoBehaviour {public delegate void EventHandle(GameObject e);public event EventHandle MouseOver;void OnMouseOver(){if (MouseOver != null){MouseOver(gameObject);}}// Use this for initializationvoid Start () {}// Update is called once per framevoid Update () {}
}

ListenCube.cs

using UnityEngine;
using System.Collections;public class ListenCube : MonoBehaviour
{// Use this for initializationvoid Start(){EventCube ev = GameObject.Find("EventCube").GetComponent<EventCube>();//EventCube 事件物体ev.MouseOver += new EventCube.EventHandle(ev_MouseOver);//监听函数//ev.MouseOver += ev_MouseOver;
    }void ev_MouseOver(GameObject e){this.transform.Rotate(20, 0, 0);Debug.Log("旋转 ：" + e);//throw new System.NotImplementedException();
    }void Listening(GameObject e){}// Update is called once per framevoid Update(){}
}

效果:

转载于:https://www.cnblogs.com/PEPE/p/3590053.html