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annotate Orchestland/Assets/LeapMotion+OVR/SystemWipe/SystemWipeRecognizerListener.cs @ 1:f7675884f2a1
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author | Daiki OYAKAWA <e135764@ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2015 23:09:20 +0900 |
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1 using UnityEngine; |
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2 using System; |
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3 using Leap.Util; |
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4 |
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5 using System.Runtime.InteropServices; |
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6 |
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7 public class SystemWipeArgs : EventArgs { |
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8 private SystemWipeInfo m_wipeInfo; |
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9 |
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10 public SystemWipeInfo WipeInfo { get { return m_wipeInfo; } } |
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11 |
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12 public SystemWipeArgs(SystemWipeInfo wipeInfo) { |
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13 m_wipeInfo = wipeInfo; |
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14 } |
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15 } |
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16 |
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17 public class SystemWipeRecognizerListener : MonoBehaviour { |
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18 |
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19 public event EventHandler<SystemWipeArgs> SystemWipeUpdate; |
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20 |
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21 public static SystemWipeRecognizerListener Instance; |
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22 |
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23 private SystemWipeInfo m_latestWipeInfo; |
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24 |
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25 private bool m_wipeInfoDirty = false; |
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26 |
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27 private object wipeInfoLock = new object(); |
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28 |
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29 /// <summary> |
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30 /// Singleton pattern |
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31 /// </summary> |
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32 void Awake() { |
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33 if ( Instance == null ) { |
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34 Instance = this; |
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35 } |
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36 else { |
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37 throw new Exception("Attempting to create multiple SystemWipeRecognizerListeners. Only the first recognizer will be listed."); |
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38 } |
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39 } |
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40 |
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41 void Update() { |
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42 // This code is not used in synchronous querying |
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43 // |
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44 lock(wipeInfoLock) { |
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45 if( m_wipeInfoDirty) { |
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46 EventHandler<SystemWipeArgs> handler = SystemWipeUpdate; |
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47 |
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48 if ( handler != null ) { |
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49 handler(this, new SystemWipeArgs(m_latestWipeInfo)); |
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50 } |
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51 m_wipeInfoDirty = false; |
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52 } |
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53 } |
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54 |
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55 // Synchronous access: |
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56 // |
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57 |
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58 // Try to get latest swipe info |
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59 Leap.Util.SystemWipeInfo info = Leap.Util.SystemWipeRecognizerNative.GetNextSystemWipeInfo(); |
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60 |
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61 // If one exists... |
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62 if (info.Status != Leap.Util.Status.InfoQueueEmpty) |
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63 { |
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64 // then save the lastest one ast m_latestWipeInfo |
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65 while (info.Status != Leap.Util.Status.InfoQueueEmpty) |
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66 { |
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67 m_latestWipeInfo = info; |
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68 //Debug.Log("Swipe " + info.Status + " " + info.Direction + " " + info.Progress); |
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69 info = Leap.Util.SystemWipeRecognizerNative.GetNextSystemWipeInfo(); |
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70 } |
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71 |
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72 // Execute handler for one lastest info. |
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73 EventHandler<SystemWipeArgs> handler = SystemWipeUpdate; |
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74 if (handler != null) { handler(this, new SystemWipeArgs(m_latestWipeInfo)); } |
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75 } |
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76 } |
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77 |
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78 void SystemWipeInfoCallback(Leap.Util.SystemWipeInfo info) |
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79 { |
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80 //Debug.Log("Swipe " + info.Status + " " + info.Direction + " " + info.Progress); |
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81 lock(wipeInfoLock) { |
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82 m_wipeInfoDirty = true; |
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83 m_latestWipeInfo = info; |
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84 } |
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85 } |
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86 |
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87 // Called before the body's first Update() and, if you Disable the body it's called again before the first following Update(). |
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88 void OnEnable() |
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89 { |
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90 // Callback delegate doesn't work as it is. We use synchronous querying in Update() instead. |
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91 |
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92 //systemWipeInfoDelegate = new Leap.Util.SystemWipeRecognizerNative.CallbackSystemWipeInfoDelegate(SystemWipeInfoCallback); |
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93 //Leap.Util.SystemWipeRecognizerNative.SetSystemWipeRecognizerCallback(Marshal.GetFunctionPointerForDelegate(systemWipeInfoDelegate)); |
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94 |
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95 Leap.Util.SystemWipeRecognizerNative.EnableSystemWipeRecognizer(); |
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96 } |
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97 |
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98 // Called when the body is disabled. Also called upon body destruction. |
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99 void OnDisable() |
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100 { |
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101 Leap.Util.SystemWipeRecognizerNative.DisableSystemWipeRecognizer(); |
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102 } |
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103 |
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104 Leap.Util.SystemWipeRecognizerNative.CallbackSystemWipeInfoDelegate systemWipeInfoDelegate; |
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105 } |