Plugin/Source/SenseGloveTracking/SenseGloveTracking.Build.cs

/**
 * @file
 *
 * @author  Mamadou Babaei <mamadou@senseglove.com>
 *
 * @section LICENSE
 *
 * (The MIT License)
 *
 * Copyright (c) 2020 - 2025 SenseGlove
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * @section DESCRIPTION
 *
 *
 */


using EpicGames.Core;
using System;
using System.Diagnostics;
using System.IO;
using UnrealBuildTool;

public class SenseGloveTracking : ModuleRules
{
    public SenseGloveTracking(ReadOnlyTargetRules Target) : base(Target)
    {
        PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;

        PrivateDependencyModuleNames.AddRange(
            new string[]
            {
                "ApplicationCore",
                "Core",
                "CoreUObject",
                "Engine",
                "HeadMountedDisplay",
                "InputCore",
                "InputDevice",
                "OpenXRHMD",
                "OpenXRInput",
                // NOTE
                // Only UE 5.3+ provides the XRBase plugin.
#if UE_5_3_OR_LATER
                "XRBase",
#else
               "OpenXR",
#endif
                "Slate",
                "SlateCore",
            }
        );

#if ! UE_5_4_OR_LATER
        string OpenXRHMDPrivateIncludeDir = Path.GetFullPath(Target.RelativeEnginePath);
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "Plugins");
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "Runtime");
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "OpenXR");
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "Source");
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "OpenXRHMD");
        OpenXRHMDPrivateIncludeDir = Path.Combine(OpenXRHMDPrivateIncludeDir, "Private");

        PrivateIncludePaths.AddRange(
            new string[]
            {
                OpenXRHMDPrivateIncludeDir,
            }
        );
#endif

        PrivateDependencyModuleNames.AddRange(
            new string[]
            {
                "SenseGloveBackend",
                "SenseGloveCore",
                "SenseGloveLog",
                "SenseGloveSettings",
                "SenseGloveTypes",
                "SenseGloveUtils",
            }
        );

        PrivateIncludePathModuleNames.AddRange(
            new string[]
            {
                "SenseGloveBuildHacks",
            }
        );

        AddEngineThirdPartyPrivateStaticDependencies(Target, "OpenXR");

        SetupMetaXRAvailability(Target);
    }

       private string FindPluginPath(string PluginName)
       {
           string[] PossiblePluginDirs = new string[]
           {
               Path.Combine(EngineDirectory, "Plugins"),
               Path.Combine(EngineDirectory, "Plugins", "Marketplace"),
               Path.Combine(ModuleDirectory, "..", "..", "..", "..", "Plugins"),
           };

           foreach (string BaseDir in PossiblePluginDirs)
           {
               string PluginDir = Path.Combine(BaseDir, PluginName);
               if (Directory.Exists(PluginDir))
               {
                   return PluginDir;
               }
           }

           return string.Empty;
       }

    private void SetupMetaXRAvailability(ReadOnlyTargetRules Target)
    {
        const string MetaXRFriendlyName = "MetaXR";
        const string MetaXRPluginName = "OculusXR";

        PublicDefinitions.Add("WITH_METAXR=0");

        if (JsonObject.TryRead(Target.ProjectFile, out var UProjectRawObject))
        {
            if (UProjectRawObject.TryGetObjectArrayField("Plugins", out var PluginsObject))
            {
                foreach (JsonObject PluginObject in PluginsObject)
                {
                    PluginObject.TryGetStringField("Name", out var PluginName);
                    PluginObject.TryGetBoolField("Enabled", out var PluginEnabled);

                    if (PluginName == MetaXRPluginName && PluginEnabled)
                    {
                        string MetaXRDir = Path.GetFullPath(FindPluginPath(MetaXRFriendlyName));
                        if (MetaXRDir == string.Empty)
                        {
                            Debug.Assert(false, "Cannot find the MetaXRDir!");
                        }

                        string MetaXRSourceDir = Path.Combine(MetaXRDir, "Source");
                        string OculusXRHMDDir = Path.Combine(MetaXRSourceDir, "OculusXRInput");
                        string OculusXRHMDPrivateIncludeDir = Path.Combine(OculusXRHMDDir, "Private");
                        string OculusXRInputDir = Path.Combine(MetaXRSourceDir, "OculusXRHMD");
                        string OculusXRInputPrivateIncludeDir = Path.Combine(OculusXRInputDir, "Private");

                        string MetaXRThirdPartyDir = Path.Combine(MetaXRSourceDir, "ThirdParty");
                        string OVRPluginIncludeDir =
                            Path.Combine(MetaXRThirdPartyDir, "OVRPlugin", "OVRPlugin", "Include");

                        PrivateIncludePaths.AddRange(
                            new string[]
                            {
                                OculusXRHMDPrivateIncludeDir,
                                OculusXRInputPrivateIncludeDir,
                                OVRPluginIncludeDir,
                            }
                        );

                        PrivateIncludePathModuleNames.AddRange(
                            new string[]
                            {
                                "OculusXRHMD",
                                "OculusXRInput",
                            }
                        );

                        PublicDefinitions.Remove("WITH_METAXR=0");
                        PublicDefinitions.Add("WITH_METAXR=1");
                    }
                }
            }
        }
    }
}