using System;
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using UnityEngine;
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/// <summary>
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/// 性能档次枚举
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/// </summary>
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public enum PerformanceLevel
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{
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/// <summary>低端设备（内存 < 2GB，2019年前机型）</summary>
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Low,
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/// <summary>中端设备（内存 2-4GB，2019-2021年机型）</summary>
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Medium,
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/// <summary>高端设备（内存 > 4GB，2021年后旗舰）</summary>
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High
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}
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/// <summary>
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/// 设备性能档次和屏幕信息
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/// </summary>
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[Serializable]
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public class DeviceProfile
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{
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/// <summary>性能档次</summary>
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public PerformanceLevel PerformanceLevel = PerformanceLevel.Medium;
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/// <summary>总内存大小（MB）</summary>
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public long TotalMemory;
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/// <summary>屏幕宽度（像素）</summary>
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public int ScreenWidth;
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/// <summary>屏幕高度（像素）</summary>
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public int ScreenHeight;
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/// <summary>安全区域</summary>
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public Rect SafeArea;
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/// <summary>屏幕DPI</summary>
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public float DPI;
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/// <summary>设备型号</summary>
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public string DeviceModel;
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/// <summary>
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/// 从Unity SystemInfo检测设备配置
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/// </summary>
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public static DeviceProfile DetectFromSystem()
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{
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var profile = new DeviceProfile
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{
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TotalMemory = UnityEngine.SystemInfo.systemMemorySize,
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ScreenWidth = Screen.width,
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ScreenHeight = Screen.height,
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SafeArea = Screen.safeArea,
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DPI = Screen.dpi,
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DeviceModel = UnityEngine.SystemInfo.deviceModel
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};
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// 根据内存判定性能档次
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#if UNITY_WEBGL
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// WebGL下systemMemorySize不准确，默认中端
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profile.PerformanceLevel = PerformanceLevel.Medium;
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#else
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if (profile.TotalMemory < 2048)
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profile.PerformanceLevel = PerformanceLevel.Low;
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else if (profile.TotalMemory < 4096)
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profile.PerformanceLevel = PerformanceLevel.Medium;
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else
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profile.PerformanceLevel = PerformanceLevel.High;
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#endif
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return profile;
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}
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}
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