Optimize code structure for input module.

Assets/Cryville/Common/Unity/Input/InputHandler.cs

@@ -4,7 +4,19 @@ using UnityEngine;
 namespace Cryville.Common.Unity.Input {
 	public delegate void InputEventDelegate(InputIdentifier id, InputVector vec);
 	public abstract class InputHandler : IDisposable {
-		public event InputEventDelegate OnInput;
+		InputEventDelegate m_onInput;
+		public event InputEventDelegate OnInput {
+			add {
+				if (m_onInput == null) Activate();
+				m_onInput -= value;
+				m_onInput += value;
+			}
+			remove {
+				if (m_onInput == null) return;
+				m_onInput -= value;
+				if (m_onInput == null) Deactivate();
+			}
+		}
 
 		~InputHandler() {
 			Dispose(false);
@@ -14,26 +26,15 @@ namespace Cryville.Common.Unity.Input {
 			GC.SuppressFinalize(this);
 		}
 
-		public bool Activated { get; private set; }
-		public void Activate() {
-			if (Activated) return;
-			Activated = true;
-			ActivateImpl();
-		}
-		protected abstract void ActivateImpl();
-		public void Deactivate() {
-			if (!Activated) return;
-			Activated = false;
-			DeactivateImpl();
-		}
-		protected abstract void DeactivateImpl();
+		protected abstract void Activate();
+		protected abstract void Deactivate();
 		public abstract void Dispose(bool disposing);
 		public abstract bool IsNullable(int type);
 		public abstract byte GetDimension(int type);
 		public abstract string GetTypeName(int type);
 		public abstract double GetCurrentTimestamp();
 		protected void Feed(int type, int id, InputVector vec) {
-			var del = OnInput;
+			var del = m_onInput;
 			if (del != null) del(new InputIdentifier { Source = new InputSource { Handler = this, Type = type }, Id = id }, vec);
 		}
 	}

Assets/Cryville/Common/Unity/Input/InputManager.cs

@@ -4,28 +4,22 @@ using System.Reflection;
 
 namespace Cryville.Common.Unity.Input {
 	public class InputManager {
-		static readonly List<Type> HandlerRegistries = new List<Type> {
+		static readonly HashSet<Type> HandlerRegistries = new HashSet<Type> {
 			typeof(WindowsPointerHandler),
 			typeof(UnityKeyHandler<UnityKeyboardReceiver>),
 			typeof(UnityKeyHandler<UnityMouseButtonReceiver>),
 			typeof(UnityMouseHandler),
 			typeof(UnityTouchHandler),
 		};
-		readonly List<InputHandler> _handlers = new List<InputHandler>();
+		readonly HashSet<InputHandler> _handlers = new HashSet<InputHandler>();
 		readonly Dictionary<Type, InputHandler> _typemap = new Dictionary<Type, InputHandler>();
-		readonly Dictionary<InputHandler, double> _timeOrigins = new Dictionary<InputHandler, double>();
-		readonly object _lock = new object();
-		readonly Dictionary<InputIdentifier, InputVector> _vectors = new Dictionary<InputIdentifier, InputVector>();
-		readonly List<InputEvent> _events = new List<InputEvent>();
 		public InputManager() {
 			foreach (var t in HandlerRegistries) {
 				try {
 					if (!typeof(InputHandler).IsAssignableFrom(t)) continue;
 					var h = (InputHandler)ReflectionHelper.InvokeEmptyConstructor(t);
 					_typemap.Add(t, h);
-					h.OnInput += OnInput;
 					_handlers.Add(h);
-					_timeOrigins.Add(h, 0);
 					Logger.Log("main", 1, "Input", "Initialized {0}", ReflectionHelper.GetSimpleName(t));
 				}
 				catch (TargetInvocationException ex) {
@@ -36,49 +30,8 @@ namespace Cryville.Common.Unity.Input {
 		public InputHandler GetHandler(string name) {
 			return _typemap[Type.GetType(name)];
 		}
-		public void Activate() {
-			lock (_lock) {
-				_events.Clear();
-			}
-			foreach (var h in _handlers) h.Activate();
-		}
-		public void SyncTime(double time) {
-			foreach (var h in _handlers) {
-				_timeOrigins[h] = time - h.GetCurrentTimestamp();
-			}
-		}
-		public void Deactivate() {
-			foreach (var h in _handlers) h.Deactivate();
-		}
-		void OnInput(InputIdentifier id, InputVector vec) {
-			lock (_lock) {
-				double timeOrigin = _timeOrigins[id.Source.Handler];
-				vec.Time += timeOrigin;
-				InputVector vec0;
-				if (_vectors.TryGetValue(id, out vec0)) {
-					_events.Add(new InputEvent {
-						Id = id,
-						From = vec0,
-						To = vec,
-					});
-					if (vec.IsNull) _vectors.Remove(id);
-					else _vectors[id] = vec;
-				}
-				else {
-					_events.Add(new InputEvent {
-						Id = id,
-						From = new InputVector(vec.Time),
-						To = vec,
-					});
-					_vectors.Add(id, vec);
-				}
-			}
-		}
-		public void EnumerateEvents(Action<InputEvent> cb) {
-			lock (_lock) {
-				foreach (var ev in _events) cb(ev);
-				_events.Clear();
-			}
+		public void EnumerateHandlers(Action<InputHandler> cb) {
+			foreach (var h in _handlers) cb(h);
 		}
 	}
 

Assets/Cryville/Common/Unity/Input/SimpleInputConsumer.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+
+namespace Cryville.Common.Unity.Input {
+	public class SimpleInputConsumer {
+		readonly InputManager _manager;
+		readonly object _lock = new object();
+		readonly Dictionary<InputIdentifier, InputVector> _vectors = new Dictionary<InputIdentifier, InputVector>();
+		readonly List<InputEvent> _events = new List<InputEvent>();
+		public SimpleInputConsumer(InputManager manager) { _manager = manager; }
+		public void Activate() {
+			lock (_lock) {
+				_events.Clear();
+			}
+			_manager.EnumerateHandlers(h => h.OnInput += OnInput);
+		}
+		public void Deactivate() {
+			_manager.EnumerateHandlers(h => h.OnInput -= OnInput);
+		}
+		protected void OnInput(InputIdentifier id, InputVector vec) {
+			lock (_lock) {
+				InputVector vec0;
+				if (_vectors.TryGetValue(id, out vec0)) {
+					_events.Add(new InputEvent {
+						Id = id,
+						From = vec0,
+						To = vec,
+					});
+					if (vec.IsNull) _vectors.Remove(id);
+					else _vectors[id] = vec;
+				}
+				else {
+					_events.Add(new InputEvent {
+						Id = id,
+						From = new InputVector(vec.Time),
+						To = vec,
+					});
+					_vectors.Add(id, vec);
+				}
+			}
+		}
+		public void EnumerateEvents(Action<InputEvent> cb) {
+			lock (_lock) {
+				foreach (var ev in _events) cb(ev);
+				_events.Clear();
+			}
+		}
+	}
+}

Assets/Cryville/Common/Unity/Input/SimpleInputConsumer.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 8fd2d5f1c7ba0c74c9ce8775075750db
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Cryville/Common/Unity/Input/UnityKeyHandler.cs

@@ -9,19 +9,19 @@ namespace Cryville.Common.Unity.Input {
 
 		public UnityKeyHandler() { }
 
-		protected override void ActivateImpl() {
+		protected override void Activate() {
 			receiver = new GameObject("__keyrecv__");
 			recvcomp = receiver.AddComponent<T>();
 			recvcomp.SetCallback(Feed);
 		}
 
-		protected override void DeactivateImpl() {
+		protected override void Deactivate() {
 			if (receiver) GameObject.Destroy(receiver);
 		}
 
 		public override void Dispose(bool disposing) {
 			if (disposing) {
-				DeactivateImpl();
+				Deactivate();
 			}
 		}
 
@@ -44,7 +44,7 @@ namespace Cryville.Common.Unity.Input {
 
 	public abstract class UnityKeyReceiver<T> : MonoBehaviour where T : UnityKeyReceiver<T> {
 		protected Action<int, int, InputVector> Callback;
-		protected readonly List<int> Keys = new List<int>();
+		protected readonly HashSet<int> Keys = new HashSet<int>();
 		public void SetCallback(Action<int, int, InputVector> h) {
 			Callback = h;
 		}

Assets/Cryville/Common/Unity/Input/UnityMouseHandler.cs

@@ -12,18 +12,18 @@ namespace Cryville.Common.Unity.Input {
 			}
 		}
 
-		protected override void ActivateImpl() {
+		protected override void Activate() {
 			receiver = new GameObject("__mouserecv__");
 			receiver.AddComponent<UnityMouseReceiver>().SetHandler(this);
 		}
 
-		protected override void DeactivateImpl() {
+		protected override void Deactivate() {
 			if (receiver) GameObject.Destroy(receiver);
 		}
 
 		public override void Dispose(bool disposing) {
 			if (disposing) {
-				DeactivateImpl();
+				Deactivate();
 			}
 		}
 

Assets/Cryville/Common/Unity/Input/UnityTouchHandler.cs

@@ -12,18 +12,18 @@ namespace Cryville.Common.Unity.Input {
 			}
 		}
 
-		protected override void ActivateImpl() {
+		protected override void Activate() {
 			receiver = new GameObject("__touchrecv__");
 			receiver.AddComponent<UnityPointerReceiver>().SetHandler(this);
 		}
 
-		protected override void DeactivateImpl() {
+		protected override void Deactivate() {
 			if (receiver) GameObject.Destroy(receiver);
 		}
 
 		public override void Dispose(bool disposing) {
 			if (disposing) {
-				DeactivateImpl();
+				Deactivate();
 			}
 		}
 

Assets/Cryville/Common/Unity/Input/WindowsPointerHandler.cs

@@ -61,7 +61,7 @@ namespace Cryville.Common.Unity.Input {
 		public const int TABLET_DISABLE_PENBARRELFEEDBACK = 0x00000010;
 		public const int TABLET_DISABLE_FLICKS = 0x00010000;
 
-		protected override void ActivateImpl() {
+		protected override void Activate() {
 			newWndProc = WndProc;
 			newWndProcPtr = Marshal.GetFunctionPointerForDelegate(newWndProc);
 			oldWndProcPtr = SetWindowLongPtr(hMainWindow, -4, newWndProcPtr);
@@ -77,7 +77,7 @@ namespace Cryville.Common.Unity.Input {
 			);
 		}
 
-		protected override void DeactivateImpl() {
+		protected override void Deactivate() {
 			if (pressAndHoldAtomID != 0) {
 				NativeMethods.RemoveProp(hMainWindow, PRESS_AND_HOLD_ATOM);
 				NativeMethods.GlobalDeleteAtom(pressAndHoldAtomID);
@@ -142,7 +142,7 @@ namespace Cryville.Common.Unity.Input {
 		}
 
 		public override void Dispose(bool disposing) {
-			DeactivateImpl();
+			Deactivate();
 			if (usePointerMessage)
 				NativeMethods.EnableMouseInPointer(false);
 			Instance = null;

Assets/Cryville/Crtr/Config/ConfigScene.cs

@@ -57,7 +57,6 @@ namespace Cryville.Crtr.Config {
 			var proxy = new InputProxy(ruleset.Root, null);
 			proxy.LoadFrom(_rscfg.inputs);
 			m_inputConfigPanel.proxy = proxy;
-			Game.InputManager.Activate();
 		}
 
 		public void SwitchCategory(GameObject cat) {
@@ -68,7 +67,6 @@ namespace Cryville.Crtr.Config {
 		}
 
 		public void SaveAndReturnToMenu() {
-			Game.InputManager.Deactivate();
 			m_inputConfigPanel.proxy.SaveTo(_rscfg.inputs);
 			m_inputConfigPanel.proxy.Dispose();
 			FileInfo cfgfile = new FileInfo(

Assets/Cryville/Crtr/Config/InputConfigPanel.cs

@@ -24,6 +24,7 @@ namespace Cryville.Crtr.Config {
 		[SerializeField]
 		GameObject m_prefabInputConfigEntry;
 
+		readonly SimpleInputConsumer _consumer = new SimpleInputConsumer(Game.InputManager);
 		public InputProxy proxy;
 		readonly Dictionary<string, InputConfigPanelEntry> _entries = new Dictionary<string, InputConfigPanelEntry>();
 
@@ -32,7 +33,7 @@ namespace Cryville.Crtr.Config {
 			_sel = entry;
 			m_inputDialog.SetActive(true);
 			CallHelper.Purge(m_deviceList);
-			Game.InputManager.EnumerateEvents(ev => { });
+			_consumer.EnumerateEvents(ev => { });
 			_recvsrcs.Clear();
 			AddSourceItem(null);
 		}
@@ -46,10 +47,11 @@ namespace Cryville.Crtr.Config {
 				Target = _sel,
 				Source = src,
 			});
-			m_inputDialog.SetActive(false);
+			CloseDialog();
 		}
 
 		void Start() {
+			_consumer.Activate();
 			foreach (var i in m_configScene.ruleset.Root.inputs) {
 				var e = GameObject.Instantiate(m_prefabInputConfigEntry, m_entryList.transform).GetComponent<InputConfigPanelEntry>();
 				_entries.Add(i.Key, e);
@@ -59,6 +61,10 @@ namespace Cryville.Crtr.Config {
 			proxy.ProxyChanged += OnProxyChanged;
 		}
 
+		void OnDestroy() {
+			_consumer.Deactivate();
+		}
+
 		void OnProxyChanged(object sender, ProxyChangedEventArgs e) {
 			_entries[e.Name].SetEnabled(!e.Used);
 			_entries[e.Name].SetValue(e.Proxy == null ? "None" : e.Proxy.Value.Handler.GetTypeName(e.Proxy.Value.Type));
@@ -67,7 +73,7 @@ namespace Cryville.Crtr.Config {
 		readonly List<InputSource?> _recvsrcs = new List<InputSource?>();
 		void Update() {
 			if (m_inputDialog.activeSelf) {
-				Game.InputManager.EnumerateEvents(ev => {
+				_consumer.EnumerateEvents(ev => {
 					AddSourceItem(ev.Id.Source);
 				});
 			}

Assets/Cryville/Crtr/InputProxy.cs

@@ -65,10 +65,6 @@ namespace Cryville.Crtr {
 			if (_use[target] > 0)
 				throw new InvalidOperationException("Input already assigned");
 			if (proxy.Source != null) {
-				if (_judge != null) {
-					proxy.Source.Value.Handler.OnInput -= OnInput; // Prevent duplicated hooks, no exception will be thrown
-					proxy.Source.Value.Handler.OnInput += OnInput;
-				}
 				_tproxies.Add(target, proxy);
 				_sproxies.Add(proxy.Source.Value, proxy);
 				IncrementUseRecursive(target);
@@ -77,7 +73,6 @@ namespace Cryville.Crtr {
 		}
 		void Remove(InputProxyEntry proxy) {
 			var target = proxy.Target;
-			if (_judge != null) _tproxies[target].Source.Value.Handler.OnInput -= OnInput;
 			_sproxies.Remove(_tproxies[target].Source.Value);
 			_tproxies.Remove(target);
 			DecrementUseRecursive(target);
@@ -142,12 +137,22 @@ namespace Cryville.Crtr {
 		public void Activate() {
 			_activeCounts.Clear();
 			_vect.Clear(); _vecs.Clear();
-			foreach (var src in _sproxies.Keys) {
-				_activeCounts.Add(src, 0);
-				src.Handler.Activate();
+			foreach (var src in _sproxies) {
+				_activeCounts.Add(src.Key, 0);
+				var isrc = src.Value.Source;
+				if (isrc != null) {
+					isrc.Value.Handler.OnInput += OnInput;
+				}
+			}
+		}
+		public void Deactivate() {
+			foreach (var src in _sproxies) {
+				var isrc = src.Value.Source;
+				if (isrc != null) {
+					isrc.Value.Handler.OnInput -= OnInput;
+				}
 			}
 		}
-		public void Deactivate() { foreach (var src in _sproxies.Keys) src.Handler.Deactivate(); }
 
 		~InputProxy() {
 			Dispose(false);