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using HoloToolkit.Unity.InputModule;
using UnityEngine;
public class RotationController : MonoBehaviour, IInputHandler, ISourceStateHandler {
public GameObject target;
public bool IsDraggingEnable = true;
private bool isDragging;
private Camera mainCamera;
private IInputSource currentInputSource = null;
private uint currentInputSourceId;
public enum RotationAxis {
x,
y,
z
}
public RotationAxis axis;
private Vector3 startHandPosition;
private Vector3 orthogonalRotationAxisVect;
private void OnEnable() {
target = transform.GetComponentInParent<TransformController>().target;
if (target == null) {
Debug.LogError("PositionController-OnEnable: target is not set.");
return;
}
mainCamera = Camera.main;
}
void Update () {
if (IsDraggingEnable && isDragging)
UpdatedDragging();
}
public void StartDragging() {
if (!IsDraggingEnable)
return;
if (isDragging)
return;
InputManager.Instance.PushModalInputHandler(gameObject);
isDragging = true;
currentInputSource.TryGetPosition(currentInputSourceId, out startHandPosition);
Vector3 rotaitonAxisVect;
switch (axis) {
case RotationAxis.x:
rotaitonAxisVect = target.transform.right;
break;
case RotationAxis.y:
rotaitonAxisVect = target.transform.up;
break;
case RotationAxis.z:
rotaitonAxisVect = target.transform.forward;
break;
default:
Debug.LogError("Parameter 'axis' is not set.");
return;
}
Vector3 projectionVect = Vector3.ProjectOnPlane(rotaitonAxisVect, mainCamera.transform.forward);
projectionVect.Normalize();
orthogonalRotationAxisVect = Vector3.Cross(mainCamera.transform.forward, projectionVect);
orthogonalRotationAxisVect.Normalize();
}
public void UpdatedDragging() {
Vector3 newHandPosition;
currentInputSource.TryGetPosition(currentInputSourceId, out newHandPosition);
Vector3 moveVect = newHandPosition - startHandPosition;
Vector3 projectMoveVect = Vector3.Project(moveVect, orthogonalRotationAxisVect);
float rotationVal = Vector3.Dot(projectMoveVect, orthogonalRotationAxisVect) * TransformController.rotationSpeed;
target.transform.Rotate(
axis == RotationAxis.x ? rotationVal : 0,
axis == RotationAxis.y ? rotationVal : 0,
axis == RotationAxis.z ? rotationVal : 0
);
}
public void StopDragging() {
if (!isDragging)
return;
InputManager.Instance.PopModalInputHandler();
isDragging = false;
currentInputSource = null;
}
#region IInputHandler
public void OnInputUp(InputEventData eventData) {
if (currentInputSource != null && eventData.SourceId == currentInputSourceId)
StopDragging();
}
public void OnInputDown(InputEventData eventData) {
if (isDragging)
return;
if (!eventData.InputSource.SupportsInputInfo(eventData.SourceId, SupportedInputInfo.Position))
return;
currentInputSource = eventData.InputSource;
currentInputSourceId = eventData.SourceId;
StartDragging();
}
#endregion
#region ISourceStateHandler
public void OnSourceDetected(SourceStateEventData eventData) {
// Nothing to do.
}
public void OnSourceLost(SourceStateEventData eventData) {
if (currentInputSource != null && eventData.SourceId == currentInputSourceId)
StopDragging();
}
#endregion
}
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