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Assets/CoolapeFrame/3rd/NGUI_Enhance/Scripts/UI/UIOrthoCamera.cs

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+//----------------------------------------------
+//            NGUI: Next-Gen UI kit
+// Copyright © 2011-2015 Tasharen Entertainment
+//----------------------------------------------
+
+using UnityEngine;
+
+/// <summary>
+/// Convenience script that resizes the camera's orthographic size to match the screen size.
+/// This script can be used to create pixel-perfect UI, however it's usually more convenient
+/// to create the UI that stays proportional as the screen scales. If that is what you
+/// want, you don't need this script (or at least don't need it to be active).
+/// </summary>
+
+[ExecuteInEditMode]
+[RequireComponent(typeof(Camera))]
+[AddComponentMenu("NGUI/UI/Orthographic Camera")]
+public class UIOrthoCamera : MonoBehaviour
+{
+	Camera mCam;
+	Transform mTrans;
+
+	void Start ()
+	{
+		mCam = GetComponent<Camera>();
+		mTrans = transform;
+		mCam.orthographic = true;
+	}
+
+	void Update ()
+	{
+		float y0 = mCam.rect.yMin * Screen.height;
+		float y1 = mCam.rect.yMax * Screen.height;
+
+		float size = (y1 - y0) * 0.5f * mTrans.lossyScale.y;
+		if (!Mathf.Approximately(mCam.orthographicSize, size)) mCam.orthographicSize = size;
+	}
+}