Move part of the input module to Cryville.Input.

Assets/Plugins/Cryville.Input.Unity.Builtin/UnityTouchHandler.cs

@@ -0,0 +1,70 @@
+using System;
+using UnityEngine;
+using unity = UnityEngine;
+
+namespace Cryville.Input.Unity {
+	public class UnityTouchHandler : InputHandler {
+		GameObject _receiver;
+
+		public UnityTouchHandler() {
+			if (!unity::Input.touchSupported) {
+				throw new NotSupportedException("Unity touch is not supported on this device");
+			}
+		}
+
+		protected override void Activate() {
+			_receiver = new GameObject("__touchRecv__");
+			_receiver.AddComponent<UnityPointerReceiver>().SetHandler(this);
+		}
+
+		protected override void Deactivate() {
+			if (_receiver) GameObject.Destroy(_receiver);
+		}
+
+		public override void Dispose(bool disposing) {
+			if (disposing) {
+				Deactivate();
+			}
+		}
+
+		public override bool IsNullable { get { return true; } }
+
+		public override byte Dimension { get { return 2; } }
+
+		readonly static ReferenceCue _refCue = new ReferenceCue {
+			PhysicalDimension = new PhysicalDimension { Length = 1 },
+			RelativeUnit = RelativeUnit.Pixel,
+		};
+		public override ReferenceCue ReferenceCue => _refCue;
+
+		public override string GetTypeName(int type) {
+			switch (type) {
+				case 0: return "Touch";
+				default: throw new ArgumentOutOfRangeException("type");
+			}
+		}
+
+		public override double GetCurrentTimestamp() {
+			return Time.realtimeSinceStartupAsDouble;
+		}
+
+		public class UnityPointerReceiver : MonoBehaviour {
+			UnityTouchHandler _handler;
+			public void SetHandler(UnityTouchHandler h) {
+				_handler = h;
+			}
+			void Update() {
+				double time = Time.realtimeSinceStartupAsDouble;
+				for (int i = 0; i < unity::Input.touchCount; i++) {
+					var t = unity::Input.GetTouch(i);
+					Vector2 pos = t.position;
+					var vec = new InputFrame(time, new InputVector(pos.x, pos.y));
+					_handler.Feed(0, t.fingerId, vec);
+					if (t.phase == TouchPhase.Ended || t.phase == TouchPhase.Canceled) {
+						_handler.Feed(0, t.fingerId, new InputFrame(time));
+					}
+				}
+			}
+		}
+	}
+}