jongjae0305
129 lines
3.9 KiB
C#
129 lines
3.9 KiB
C#
using UnityEngine;
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using UnityEngine.Events;
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using System.Collections.Generic;
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using VRSDK.Events;
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namespace VRSDK
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{
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public enum GesturePhase
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{
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Tracking,
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Processing
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}
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//this script read gestures in the controller
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//like a rotation a certain speed and angles
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//this is being use for the weapon system for physics base reload, is beinguse in the revolver
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public class VR_ControllerGesture : MonoBehaviour
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{
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private float minAcelerationThreshold = 0.0f;
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private float maxAcelerationThreshold = 0.0f;
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private VR_Controller controller = null;
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private GesturePhase rotationGesturePhase = GesturePhase.Tracking;
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private Quaternion rotationGesturefromQuaternion = Quaternion.identity;
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private OnRotationGestureEvent OnRotationGestureEvent = new OnRotationGestureEvent();
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private const int MAX_SAMPLING_HISTORY = 30;
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private void Awake()
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{
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controller = GetComponent<VR_Controller>();
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}
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public void Construct(ControllerGestureConfig config)
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{
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minAcelerationThreshold = config.minAcelerationThreshold;
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maxAcelerationThreshold = config.maxAcelerationThreshold;
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}
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private void Update()
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{
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UpdateRotationGesture();
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}
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// set a listener for a rotation gesture
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public void ListenForRotationGesture(UnityAction<RotationGestureInfo> listener)
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{
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OnRotationGestureEvent.AddListener(listener);
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}
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//remove listener for a rotation gesture
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public void RemoveRotationGestureListener(UnityAction<RotationGestureInfo> listener)
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{
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OnRotationGestureEvent.RemoveListener(listener);
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}
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private void UpdateRotationGesture()
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{
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switch (rotationGesturePhase)
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{
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case GesturePhase.Tracking:
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RotationGestureTrackingUpdate();
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break;
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case GesturePhase.Processing:
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RotationGestureProcessingUpdate();
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break;
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}
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}
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private void RotationGestureTrackingUpdate()
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{
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List<Quaternion> rotationHistory = GetRotationHistory();
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if (rotationHistory == null || rotationHistory.Count <= 0)
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return;
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float rotAceleration = Quaternion.Angle( rotationHistory[0], rotationHistory[rotationHistory.Count - 1] );
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//detect a fast rotation movement
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if (rotAceleration > maxAcelerationThreshold)
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{
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rotationGesturePhase = GesturePhase.Processing;
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}
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}
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private List<Quaternion> GetRotationHistory()
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{
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List<Quaternion> rotationHistory = controller.GetRotationHistorySample( MAX_SAMPLING_HISTORY );
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return rotationHistory;
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}
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private void RotationGestureProcessingUpdate()
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{
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List<Quaternion> rotationHistory = GetRotationHistory();
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if (rotationHistory == null || rotationHistory.Count <= 0)
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return;
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float rotAceleration = Quaternion.Angle( rotationHistory[0], rotationHistory[rotationHistory.Count - 1] );
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//wait for the hand to stop
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if (rotAceleration < minAcelerationThreshold)
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{
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OnRotationGestureEvent.Invoke( new RotationGestureInfo( rotationGesturefromQuaternion , rotationHistory[rotationHistory.Count - 1] ) );
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rotationGesturePhase = GesturePhase.Tracking;
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}
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}
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}
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public class RotationGestureInfo
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{
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public Quaternion from;
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public Quaternion to;
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public RotationGestureInfo(Quaternion from , Quaternion to)
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{
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this.from = from;
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this.to = to;
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}
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}
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}
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