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public override void GUIDraw (){ //开始缩放 //先定义一个标准屏幕大小代码按照这个分辨率写，这里屏是800*480象素，GUI矩阵再乘以新的缩放矩阵实现GUI的缩放，GUI.matrix*=scaleMatrix; ScreenScaleUtil.BeginScreenScale (); //GUI代码 GUI... //结束缩放 ScreenScaleUtil.EndScreenScale (); } ScreenScaleUtil.cs using UnityEngine; using System.Collections; using System.Collections.Generic; public enum ScreenScaleType { None, Center, Fit, Full } public static class ScreenScaleUtil { static ScreenScaleUtil () { scaleRate=1; scaleType = ScreenScaleType.None; scaleMatrix = Matrix4x4.identity; screenSize = new Vector2 (800, 480); ScaleType=ScreenScaleType.Fit; lstMats =new List<Matrix4x4>(); } private static Matrix4x4 scaleMatrix; private static ScreenScaleType scaleType; private static Vector2 screenSize; private static float scaleRate; public static Matrix4x4 ScaleMatrix { get {return scaleMatrix; } } public static ScreenScaleType ScaleType { get { return scaleType; } set { if (value != scaleType) { scaleType = value; scaleMatrix = GetScreenScaleMatrix (screenSize, scaleType,out scaleRate); } } } public static Vector2 ScreenSize { get { return screenSize; } set { if (value != screenSize) { screenSize = value; scaleMatrix = GetScreenScaleMatrix (screenSize, scaleType,out scaleRate); } } } public static float ScaleRate{ get{ return scaleRate; } } public static void Update(){ scaleMatrix = GetScreenScaleMatrix (screenSize, scaleType,out scaleRate); } public static Matrix4x4 GetScreenScaleMatrix (Vector2 screenSize, ScreenScaleType scaleType) { float rate; return GetScreenScaleMatrix(screenSize,scaleType,out rate); } public static Matrix4x4 GetScreenScaleMatrix (Vector2 screenSize, ScreenScaleType scaleType,out float rate) { Matrix4x4 scaleMatrix; rate = 1; if (scaleType == ScreenScaleType.None) { scaleMatrix = Matrix4x4.identity; } else { if ((Screen.width / (float)Screen.height) < (screenSize.x / screenSize.y)) {
if (scaleType == ScreenScaleType.Fit) { rate = Screen.width / screenSize.x; } else if (scaleType == ScreenScaleType.Full) { rate = Screen.height / screenSize.y; } } else { if (scaleType == ScreenScaleType.Fit) { rate = Screen.height / screenSize.y; } else if (scaleType == ScreenScaleType.Full) { rate = Screen.width / screenSize.x; } } scaleMatrix = Matrix4x4.TRS (new Vector3 ((Screen.width - screenSize.x * rate) / 2.0f, (Screen.height - screenSize.y * rate) / 2.0f, 0), Quaternion.identity, new Vector3 (rate, rate, 1)); } return scaleMatrix; } private static List<Matrix4x4> lstMats; public static void BeginScreenScale(){ if(lstMats.Count>0){ return; } lstMats.Add(GUI.matrix); GUI.matrix*=ScaleMatrix; } public static void BeginScreenScale(ScreenScaleType scaleType ){ if(lstMats.Count>0){ return; } lstMats.Add(GUI.matrix); GUI.matrix*=GetScreenScaleMatrix(screenSize,scaleType); } public static void EndScreenScale(){ if(lstMats.Count<=0) return; GUI.matrix=lstMats[lstMats.Count-1]; lstMats.RemoveAt(lstMats.Count-1); } } |
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