70 lines
2.6 KiB
C#
70 lines
2.6 KiB
C#
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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* All rights reserved.
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*
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* Licensed under the Oculus SDK License Agreement (the "License");
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* you may not use the Oculus SDK except in compliance with the License,
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* which is provided at the time of installation or download, or which
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* otherwise accompanies this software in either electronic or hard copy form.
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*
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* You may obtain a copy of the License at
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*
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* https://developer.oculus.com/licenses/oculussdk/
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*
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* Unless required by applicable law or agreed to in writing, the Oculus SDK
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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namespace Oculus.Interaction
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{
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/// <summary>
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/// This extension allows easily registering an unregistering callback at the EndOfFrame
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/// which happens after rendering but before the next fixed Update.
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/// Call RegisterEndOfFrameCallback to start receiving updates and
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/// UnregisterEndOfFrameCallback to stop.
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/// </summary>
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internal static class MonoBehaviourEndOfFrameExtensions
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{
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private static YieldInstruction _endOfFrame = new WaitForEndOfFrame();
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private static Dictionary<MonoBehaviour, Coroutine> _routines = new Dictionary<MonoBehaviour, Coroutine>();
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internal static void RegisterEndOfFrameCallback(this MonoBehaviour monoBehaviour, Action callback)
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{
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if (_routines.ContainsKey(monoBehaviour))
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{
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throw new ArgumentException("This MonoBehaviour is already registered for the EndOfFrameCallback");
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}
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Coroutine routine = monoBehaviour.StartCoroutine(EndOfFrameCoroutine(callback));
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_routines.Add(monoBehaviour, routine);
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}
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internal static void UnregisterEndOfFrameCallback(this MonoBehaviour monoBehaviour)
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{
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if (!_routines.ContainsKey(monoBehaviour))
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{
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throw new ArgumentException("This MonoBehaviour is not registered for the EndOfFrameCallback");
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}
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monoBehaviour.StopCoroutine(_routines[monoBehaviour]);
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_routines.Remove(monoBehaviour);
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}
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private static IEnumerator EndOfFrameCoroutine(Action callback)
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{
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while (true)
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{
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yield return _endOfFrame;
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callback.Invoke();
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}
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}
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}
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}
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