Unity3D插件之Highlighting System：物件高亮插件

需求：点选物体时，高亮显示，以示用户选中了这个物件。

官方教程：http://deepdreamgames.com/highlighting-system/  翻译整理如下：

1、安装插件

2、在Main Camera增加HighlightingRenderer component

3、在动作触发的代码中加入高亮显示代码：

using HighlightingSystem;

Highlighter h = gameObject.AddComponent<Highlighter>();;

h.ConstantOn(Color.yellow);
h.ConstantOffImmediate();
h.FlashingOn(Color.blue, Color.cyan, 2f);

4、真实场景中，参考上一篇博文(  http://blog.youkuaiyun.com/asc2046/article/details/52974593   )点选代码，点选后高亮物件：

using UnityEngine;
using System.Collections;
using HighlightingSystem;

public class Tap : MonoBehaviour {

	void OnTap( TapGesture gesture ) { 
		if (gesture.Selection) {

			Highlighter h = gesture.Selection.AddComponent<Highlighter>();;

			// Fade in constant highlighting
			h.ConstantOn(Color.yellow);

			// Turn off constant highlighting
			h.ConstantOffImmediate();

			// Start flashing from blue to cyan color and frequency = 2f
			h.FlashingOn(Color.blue, Color.cyan, 2f);

			Debug.Log ("Tapped object: " + gesture.Selection.name);
		} else {
			Debug.Log ("No object was tapped at " + gesture.Position);
		}
	}
}