Assignment for RMIT Mixed Reality in 2020
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// Oculus Headset|SDK_Oculus|003
namespace VRTK
{
#if VRTK_DEFINE_SDK_OCULUS
using UnityEngine;
using System.Collections.Generic;
#endif
/// <summary>
/// The Oculus Headset SDK script provides a bridge to the Oculus SDK.
/// </summary>
[SDK_Description(typeof(SDK_OculusSystem))]
[SDK_Description(typeof(SDK_OculusSystem), 1)]
public class SDK_OculusHeadset
#if VRTK_DEFINE_SDK_OCULUS
: SDK_BaseHeadset
#else
: SDK_FallbackHeadset
#endif
{
#if VRTK_DEFINE_SDK_OCULUS
protected VRTK_VelocityEstimator cachedHeadsetVelocityEstimator;
/// <summary>
/// The ProcessUpdate method enables an SDK to run logic for every Unity Update
/// </summary>
/// <param name="options">A dictionary of generic options that can be used to within the update.</param>
public override void ProcessUpdate(Dictionary<string, object> options)
{
}
/// <summary>
/// The ProcessFixedUpdate method enables an SDK to run logic for every Unity FixedUpdate
/// </summary>
/// <param name="options">A dictionary of generic options that can be used to within the fixed update.</param>
public override void ProcessFixedUpdate(Dictionary<string, object> options)
{
}
/// <summary>
/// The GetHeadset method returns the Transform of the object that is used to represent the headset in the scene.
/// </summary>
/// <returns>A transform of the object representing the headset in the scene.</returns>
public override Transform GetHeadset()
{
cachedHeadset = GetSDKManagerHeadset();
if (cachedHeadset == null)
{
cachedHeadset = VRTK_SharedMethods.FindEvenInactiveGameObject<OVRCameraRig>("TrackingSpace/CenterEyeAnchor", true).transform;
}
return cachedHeadset;
}
/// <summary>
/// The GetHeadsetCamera method returns the Transform of the object that is used to hold the headset camera in the scene.
/// </summary>
/// <returns>A transform of the object holding the headset camera in the scene.</returns>
public override Transform GetHeadsetCamera()
{
cachedHeadsetCamera = GetSDKManagerHeadset();
if (cachedHeadsetCamera == null)
{
cachedHeadsetCamera = GetHeadset();
}
return cachedHeadsetCamera;
}
/// <summary>
/// The GetHeadsetType method returns a string representing the type of headset connected.
/// </summary>
/// <returns>The string of the headset connected.</returns>
public override string GetHeadsetType()
{
switch (OVRPlugin.GetSystemHeadsetType())
{
case OVRPlugin.SystemHeadset.Rift_CV1:
return CleanPropertyString("oculusrift");
case OVRPlugin.SystemHeadset.GearVR_R320:
case OVRPlugin.SystemHeadset.GearVR_R321:
case OVRPlugin.SystemHeadset.GearVR_R322:
case OVRPlugin.SystemHeadset.GearVR_R323:
return CleanPropertyString("oculusgearvr");
case OVRPlugin.SystemHeadset.Rift_DK1:
return CleanPropertyString("oculusriftdk1");
case OVRPlugin.SystemHeadset.Rift_DK2:
return CleanPropertyString("oculusriftdk2");
}
return CleanPropertyString("");
}
/// <summary>
/// The GetHeadsetVelocity method is used to determine the current velocity of the headset.
/// </summary>
/// <returns>A Vector3 containing the current velocity of the headset.</returns>
public override Vector3 GetHeadsetVelocity()
{
#if VRTK_DEFINE_OCULUS_UTILITIES_1_11_0_OR_OLDER
return OVRManager.isHmdPresent ? OVRPlugin.GetEyeVelocity(OVRPlugin.Eye.Left).ToOVRPose().position : Vector3.zero;
#elif VRTK_DEFINE_OCULUS_UTILITIES_1_12_0_OR_NEWER
return OVRManager.isHmdPresent ? OVRPlugin.GetNodeVelocity(OVRPlugin.Node.EyeCenter, OVRPlugin.Step.Render).FromFlippedZVector3f() : Vector3.zero;
#else
return Vector3.zero;
#endif
}
/// <summary>
/// The GetHeadsetAngularVelocity method is used to determine the current angular velocity of the headset.
/// </summary>
/// <returns>A Vector3 containing the current angular velocity of the headset.</returns>
public override Vector3 GetHeadsetAngularVelocity()
{
SetHeadsetCaches();
return cachedHeadsetVelocityEstimator.GetAngularVelocityEstimate();
}
/// <summary>
/// The HeadsetFade method is used to apply a fade to the headset camera to progressively change the colour.
/// </summary>
/// <param name="color">The colour to fade to.</param>
/// <param name="duration">The amount of time the fade should take to reach the given colour.</param>
/// <param name="fadeOverlay">Determines whether to use an overlay on the fade.</param>
public override void HeadsetFade(Color color, float duration, bool fadeOverlay = false)
{
VRTK_ScreenFade.Start(color, duration);
}
/// <summary>
/// The HasHeadsetFade method checks to see if the given game object (usually the camera) has the ability to fade the viewpoint.
/// </summary>
/// <param name="obj">The Transform to check to see if a camera fade is available on.</param>
/// <returns>Returns true if the headset has fade functionality on it.</returns>
public override bool HasHeadsetFade(Transform obj)
{
if (obj.GetComponentInChildren<VRTK_ScreenFade>())
{
return true;
}
return false;
}
/// <summary>
/// The AddHeadsetFade method attempts to add the fade functionality to the game object with the camera on it.
/// </summary>
/// <param name="camera">The Transform to with the camera on to add the fade functionality to.</param>
public override void AddHeadsetFade(Transform camera)
{
if (camera && !camera.GetComponent<VRTK_ScreenFade>())
{
camera.gameObject.AddComponent<VRTK_ScreenFade>();
}
}
protected virtual void SetHeadsetCaches()
{
Transform currentHeadset = GetHeadset();
if (cachedHeadsetVelocityEstimator == null && currentHeadset != null)
{
cachedHeadsetVelocityEstimator = (currentHeadset.GetComponent<VRTK_VelocityEstimator>() != null ? currentHeadset.GetComponent<VRTK_VelocityEstimator>() : currentHeadset.gameObject.AddComponent<VRTK_VelocityEstimator>());
}
}
#endif
}
}