HeadsetProviderFactory.cs
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//-----------------------------------------------------------------------
// <copyright file="HeadsetProviderFactory.cs" company="Google Inc.">
// Copyright 2017 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// </copyright>
//-----------------------------------------------------------------------
using UnityEngine;
/// @cond
namespace Gvr.Internal
{
/// <summary>
/// Factory that provides a concrete implementation of `IHeadsetProvider` for the current
/// platform.
/// </summary>
static class HeadsetProviderFactory
{
/// <summary>
/// Provides a concrete implementation of `IHeadsetProvider` appropriate for the current
/// platform.
/// <summary>
/// <remarks>
/// This method never returns null. In the worst case, it might return a dummy
/// provider if the platform is not supported. For demo purposes the emulator controller
/// is returned in the editor and in Unity Standalone (desktop) builds, for use inside the
/// desktop player.
/// </remarks>
/// <returns>An implemented `IHeadsetProvider` appropriate for the platform.</returns>
static internal IHeadsetProvider CreateProvider()
{
// Use emualtor in editor, GVR SDK support on Daydream 6DoF headsets, and a
// dummy implementation otherwise.
#if UNITY_EDITOR
return new EditorHeadsetProvider();
#elif UNITY_ANDROID
// Use the GVR C API.
return new AndroidNativeHeadsetProvider();
#else
// Platform not supported.
Debug.LogWarning("No GoogleVR 6DoF headset support on " +
Application.platform + " platform.");
return new DummyHeadsetProvider();
#endif // UNITY_EDITOR || UNITY_ANDROID
}
}
}
/// @endcond