一、前言
嗨，大家好，我是新发。
项目发布了Windows平台的版本，运行过程中发现有部分玩家的设备ID是相同的。
莫非这些玩家破解了代码，篡改了获取设备ID的逻辑，使之相同。
没理由，如果是为了刷号，正常是修改成不同的设备ID才对。
直觉告诉我，问题可能是虚拟机，如果我安装两个虚拟机，那么这两个虚拟机的设备ID是一样的吗？好奇心驱使我做了下面的实验。
二、Unity获取设备ID
Unity官方提供了SystemInfo类，方便开发者获取系统信息，其中就包括我们说的设备标识符，也就设备ID：SystemInfo.deviceUniqueIdentifier。
我们可以通过反射的方式把SystemInfo类的所有成员答应出来。
例：
using System;
using System.Reflection;
using System.Text;
using UnityEngine;
public class PrintSystemInfo : MonoBehaviour
{
void Start()
{
Type type = typeof(SystemInfo);
PropertyInfo[] propertyInfos = type.GetProperties(BindingFlags.Static |
BindingFlags.Public | BindingFlags.GetProperty);
StringBuilder sbr = new StringBuilder();
sbr.AppendLine("总共" + propertyInfos.Length + "个成员");
for (int i = 0; i < propertyInfos.Length; i++)
{
sbr.AppendFormat("{0:D2}. {1,-50} = ", i + 1, propertyInfos[i].Name);
sbr.Append(type.InvokeMember(propertyInfos[i].Name, BindingFlags.Static |
BindingFlags.Public | BindingFlags.GetProperty, null, null, null));
sbr.AppendLine();
}
Debug.Log(sbr.ToString());
}
}
输出如下：
总共89个成员
01. batteryLevel = -1
02. batteryStatus = Charging
03. operatingSystem = Windows 10 (10.0.18363) 64bit
04. operatingSystemFamily = Windows
05. processorType = Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz
06. processorFrequency = 3292
07. processorCount = 4
08. systemMemorySize = 16284
09. deviceUniqueIdentifier = f54dd0ef5a143be2fb44a65178603d0b37e126aa
10. deviceName = LINXINFAPC
11. deviceModel = B85M-D2V (Gigabyte Technology Co., Ltd.)
12. supportsAccelerometer = False
13. supportsGyroscope = False
14. supportsLocationService = False
15. supportsVibration = False
16. supportsAudio = True
17. deviceType = Desktop
18. graphicsMemorySize = 2007
19. graphicsDeviceName = NVIDIA GeForce GT 740
20. graphicsDeviceVendor = NVIDIA
21. graphicsDeviceID = 4040
22. graphicsDeviceVendorID = 4318
23. graphicsDeviceType = Direct3D11
24. graphicsUVStartsAtTop = True
25. graphicsDeviceVersion = Direct3D 11.0 [level 11.0]
26. graphicsShaderLevel = 50
27. graphicsMultiThreaded = True
28. renderingThreadingMode = MultiThreaded
29. hasHiddenSurfaceRemovalOnGPU = False
30. hasDynamicUniformArrayIndexingInFragmentShaders = True
31. supportsShadows = True
32. supportsRawShadowDepthSampling = True
33. supportsMotionVectors = True
34. supports3DTextures = True
35. supportsCompressed3DTextures = True
36. supports2DArrayTextures = True
37. supports3DRenderTextures = True
38. supportsCubemapArrayTextures = True
39. copyTextureSupport = Basic, Copy3D, DifferentTypes, TextureToRT, RTToTexture
40. supportsComputeShaders = True
41. supportsConservativeRaster = False
42. supportsMultiview = False
43. supportsGeometryShaders = True
44. supportsTessellationShaders = True
45. supportsRenderTargetArrayIndexFromVertexShader = False
46. supportsInstancing = True
47. supportsHardwareQuadTopology = False
48. supports32bitsIndexBuffer = True
49. supportsSparseTextures = True
50. supportedRenderTargetCount = 8
51. supportsSeparatedRenderTargetsBlend = True
52. supportedRandomWriteTargetCount = 8
53. supportsMultisampledTextures = 1
54. supportsMultisampled2DArrayTextures = True
55. supportsMultisampleAutoResolve = False
56. supportsTextureWrapMirrorOnce = 1
57. usesReversedZBuffer = True
58. npotSupport = Full
59. maxTextureSize = 16384
60. maxCubemapSize = 16384
61. maxComputeBufferInputsVertex = 128
62. maxComputeBufferInputsFragment = 128
63. maxComputeBufferInputsGeometry = 128
64. maxComputeBufferInputsDomain = 128
65. maxComputeBufferInputsHull = 128
66. maxComputeBufferInputsCompute = 32
67. maxComputeWorkGroupSize = 1024
68. maxComputeWorkGroupSizeX = 1024
69. maxComputeWorkGroupSizeY = 1024
70. maxComputeWorkGroupSizeZ = 64
71. supportsAsyncCompute = False
72. supportsGpuRecorder = True
73. supportsGraphicsFence = True
74. supportsAsyncGPUReadback = True
75. supportsRayTracing = False
76. supportsSetConstantBuffer = True
77. constantBufferOffsetAlignment = 0
78. minConstantBufferOffsetAlignment = False
79. hasMipMaxLevel = True
80. supportsMipStreaming = True
81. usesLoadStoreActions = False
82. hdrDisplaySupportFlags = Supported, RuntimeSwitchable, AutomaticTonemapping
83. supportsRenderTextures = True
84. supportsRenderToCubemap = True
85. supportsImageEffects = True
86. supportsStencil = 1
87. graphicsPixelFillrate = -1
88. supportsVertexPrograms = True
89. supportsGPUFence = False
可以看到我的电脑的设备ID是f54dd0ef5a143be2fb44a65178603d0b37e126aa。
关于
SystemInfo更多的说明，可以参见我之前写的这篇文章：《Unity获取系统信息SystemInfo（CPU、显卡、操作系统等信息）》
三、安装虚拟机
系统镜像下载：https://msdn.itellyou.cn/
我在上面那个网站中下载了win7系统镜像。
通过Oracle VM VirtualBox安装了两个win7虚拟机。
关于
Oracle VM VirtualBox安装虚拟机，可以参见我之前写的这篇文章：《手把手教，使用Oracle VM VirtualBox虚拟机安装Windows XP系统，爷青回》
四、虚拟机中测试deviceUniqueIdentifier
弄个测试脚本，获取设备ID，如下：
using UnityEngine;
using UnityEngine.UI;
public class NewBehaviourScript : MonoBehaviour
{
public Text text;
void Start()
{
text.text = SystemInfo.deviceUniqueIdentifier;
}
}
在我的本机（win10系统）中运行结果如下：
我发布到windows平台，然后弄到两台虚拟机中。运行效果如下：
虚拟机与本地机的设备ID不同，但两台虚拟机的设备ID是相同的。
下次再有出现相同设备ID的，就可以怀疑对方是否使用了虚拟机啦。
五、结束语
喜欢Unity的同学，不要忘记点击关注，如果有什么Unity相关的技术难题，也欢迎留言或私信~
转载：https://blog.csdn.net/linxinfa/article/details/116998510
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