/// <summary> /// Updates this gesture. /// </summary> /// <returns>True if the update was successful.</returns> protected internal override bool UpdateGesture() { Touch touch1, touch2; bool foundTouches = GestureTouchesUtility.TryFindTouch(FingerId1, out touch1); foundTouches = GestureTouchesUtility.TryFindTouch(FingerId2, out touch2) && foundTouches; if (!foundTouches) { Cancel(); return(false); } if (touch1.phase == TouchPhase.Canceled || touch2.phase == TouchPhase.Canceled) { Cancel(); return(false); } if (touch1.phase == TouchPhase.Ended || touch2.phase == TouchPhase.Ended) { Complete(); return(false); } if (touch1.phase == TouchPhase.Moved || touch2.phase == TouchPhase.Moved) { float rotation = CalculateDeltaRotation( touch1.position, touch2.position, m_PreviousPosition1, m_PreviousPosition2); DeltaRotation = rotation; m_PreviousPosition1 = touch1.position; m_PreviousPosition2 = touch2.position; return(true); } m_PreviousPosition1 = touch1.position; m_PreviousPosition2 = touch2.position; DeltaRotation = 0.0f; return(false); }
/// <summary> /// Action to be performed when this gesture is started. /// </summary> protected internal override void OnStart() { GestureTouchesUtility.LockFingerId(FingerId); RaycastHit hit; if (GestureTouchesUtility.RaycastFromCamera(StartPosition, out hit)) { var gameObject = hit.transform.gameObject; if (gameObject != null) { TargetObject = gameObject.GetComponentInParent <Manipulator>().gameObject; } } Touch touch; GestureTouchesUtility.TryFindTouch(FingerId, out touch); Position = touch.position; }
/// <summary> /// Returns true if this gesture can start. /// </summary> /// <returns>True if the gesture can start.</returns> protected internal override bool CanStart() { if (GestureTouchesUtility.IsFingerIdRetained(FingerId)) { Cancel(); return(false); } if (Input.touches.Length > 1) { for (int i = 0; i < Input.touches.Length; i++) { Touch currentTouch = Input.touches[i]; if (currentTouch.fingerId != FingerId && !GestureTouchesUtility.IsFingerIdRetained(currentTouch.fingerId)) { return(false); } } } Touch touch; if (GestureTouchesUtility.TryFindTouch(FingerId, out touch)) { Vector2 pos = touch.position; float diff = (pos - StartPosition).magnitude; if (GestureTouchesUtility.PixelsToInches(diff) >= (m_Recognizer as DragGestureRecognizer).m_SlopInches) { return(true); } } else { Cancel(); } return(false); }
/// <summary> /// Returns true if this gesture can start. /// </summary> /// <returns>True if the gesture can start.</returns> protected internal override bool CanStart() { if (GestureTouchesUtility.IsFingerIdRetained(FingerId1) || GestureTouchesUtility.IsFingerIdRetained(FingerId2)) { Cancel(); return(false); } Touch touch1, touch2; bool foundTouches = GestureTouchesUtility.TryFindTouch(FingerId1, out touch1); foundTouches = GestureTouchesUtility.TryFindTouch(FingerId2, out touch2) && foundTouches; if (!foundTouches) { Cancel(); return(false); } // Check that both fingers are moving. if (touch1.deltaPosition == Vector2.zero || touch2.deltaPosition == Vector2.zero) { return(false); } TwistGestureRecognizer twistRecognizer = Recognizer as TwistGestureRecognizer; float rotation = CalculateDeltaRotation( touch1.position, touch2.position, StartPosition1, StartPosition2); if (Mathf.Abs(rotation) < twistRecognizer.SlopRotation) { return(false); } return(true); }
/// <summary> /// Updates this gesture. /// </summary> /// <returns>True if the update was successful.</returns> protected internal override bool UpdateGesture() { Touch touch1, touch2; bool foundTouches = GestureTouchesUtility.TryFindTouch(FingerId1, out touch1); foundTouches = GestureTouchesUtility.TryFindTouch(FingerId2, out touch2) && foundTouches; if (!foundTouches) { Cancel(); return(false); } if (touch1.phase == TouchPhase.Canceled || touch2.phase == TouchPhase.Canceled) { Cancel(); return(false); } if (touch1.phase == TouchPhase.Ended || touch2.phase == TouchPhase.Ended) { Complete(); return(false); } if (touch1.phase == TouchPhase.Moved || touch2.phase == TouchPhase.Moved) { float newgap = (touch1.position - touch2.position).magnitude; GapDelta = newgap - Gap; Gap = newgap; return(true); } return(false); }