private void OnHandInteractionStateChanged(GameObject target, PalmState fromState, PalmState toState)
{
if (!_stereoCameraObjectOutline)
{
_stereoCameraObjectOutline = GameObject.FindObjectOfType <StereoCameraObjectOutline>();
if (!_stereoCameraObjectOutline)
{
return;
}
}
InteractionObjectOutlineSettings settings = target.GetComponent <InteractionObjectOutlineSettings>();
if (settings)
{
OutlineObjectVisualDecorator decorator = target.GetComponent <OutlineObjectVisualDecorator>();
if (!decorator)
{
decorator = target.AddComponent <OutlineObjectVisualDecorator>();
decorator.hideFlags = HideFlags.HideInInspector;
}
//Add or remove based on the event
decorator.ChangeColorBasedOnState(toState);
if (toState == PalmState.Idle)
{
_stereoCameraObjectOutline.RemoveOutlinedObject(decorator);
}
else if ((toState == PalmState.Hovering || toState == PalmState.Grabbing) && fromState == PalmState.Idle)
{
_stereoCameraObjectOutline.AddOutlinedObject(decorator);
}
}
}
private void MoveStateMachine(PalmStateCommand command)
{
PalmState beforeState = _palmState.CurrentState;
_palmState.MoveNext(command);
PalmState afterState = _palmState.CurrentState;
GameObject nearestGameObject = null;
if ((beforeState == PalmState.Grabbing || beforeState == PalmState.Hovering) && afterState == PalmState.Idle)
{
nearestGameObject = _cachedNearestGameObject;
}
else
{
_cachedNearestGameObject = Hand.Palm.NearObjects[0].gameObject;
nearestGameObject = _cachedNearestGameObject;
}
if (!nearestGameObject)
{
Debug.LogError("Could not reference the nearest gameobject");
return;
}
_handObjectReferences.AcceptStateTransitionForObject(nearestGameObject, beforeState, afterState);
}
private void UpdateStateVisuals(PalmState newState)
{
foreach (var materialState in Materials)
{
materialState.SetColor(newState);
}
}
private void UpdateStateVisuals(PalmState newState)
{
// -- Keep record of previous target color
_previousTargetColor = _targetColor;
// -- Update target color
switch (newState)
{
case PalmState.Idle:
_targetColor = IdleColor;
break;
case PalmState.Hovering:
_targetColor = HighlightColor;
break;
case PalmState.Grabbing:
_targetColor = EngagedColor;
break;
default:
throw new ArgumentOutOfRangeException("newState", newState, null);
}
// -- Reset interpolation variables
_interpAmount = 0f;
_interpAmountVelocity = 0f;
}
/// <summary>
/// Updates the visuals for the cursor which are not dependent upon the grab residual.
/// </summary>
private void SetCursorVisualState()
{
// Return if no feedback should be displayed
if (!_showVisualFeedback)
{
return;
}
if (_centerHandFeature.PalmState != _lastPalmState)
{
switch (_centerHandFeature.PalmState)
{
case PalmState.Idle:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = false;
break;
case PalmState.Hovering:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = true;
_grabSprite.enabled = false;
break;
case PalmState.Grabbing:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = true;
break;
}
}
if (_centerHandFeature.PalmState == PalmState.Idle)
{
if (_centerHandFeature.NearObjects.Count != 0)
{
_idleSprite.enabled = false;
_idleContactSprite.enabled = true;
}
else if (CheckHandInFrontOfInteractionObject())
{
_idleSprite.enabled = true;
_idleContactSprite.enabled = false;
}
else
{
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
}
}
_lastPalmState = _centerHandFeature.PalmState;
}
/// <summary>
/// Updates the visuals for the cursor which are not dependent upon the grab residual.
/// </summary>
private void SetCursorVisualState()
{
// Return if no feedback should be displayed
if (!_showVisualFeedback)
{
return;
}
//bool vicinityTargetState = false;
if (_centerHandFeature.PalmState != _lastPalmState)
{
switch (_centerHandFeature.PalmState)
{
case PalmState.Idle:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = false;
break;
case PalmState.Hovering:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = true;
_grabSprite.enabled = false;
break;
case PalmState.Grabbing:
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = true;
break;
}
}
if ((_centerHandFeature.NearObjects.Count != 0) ^ _vicinityOn)
{
_vicinityOn = !_vicinityOn;
if (_vicinityOn && _centerHandFeature.PalmState == PalmState.Idle)
{
_idleSprite.enabled = false;
_idleContactSprite.enabled = true;
}
if (!_vicinityOn && _centerHandFeature.PalmState == PalmState.Idle)
{
_idleSprite.enabled = false;
_idleContactSprite.enabled = false;
}
}
_lastPalmState = _centerHandFeature.PalmState;
}
/// <summary>
/// Event to notify state machine to move onto next state.
/// </summary>
/// <param name="palmStateCommand">Command to exicute.</param>
/// <returns>New palm state.</returns>
public PalmState MoveNext(PalmStateCommand palmStateCommand)
{
var nextState = GetNext(palmStateCommand);
_currentState = nextState.Key;
if (nextState.Value != null)
{
nextState.Value.Invoke();
}
else
{
UnityEngine.Debug.Log("Nest state event is null");
}
return(_currentState);
}
/// <summary>
/// Changes thw ourlining color based on PalmState.
/// </summary>
/// <param name="state"></param>
internal void ChangeColorBasedOnState(PalmState state)
{
if (_settings)
{
switch (state)
{
case PalmState.Idle:
OutlineMaterial.SetColor(OutlineObjectVisualDecorator.OutlineShaderColorAttributeName, _settings.ObjectIdleColor);
break;
case PalmState.Hovering:
OutlineMaterial.SetColor(OutlineObjectVisualDecorator.OutlineShaderColorAttributeName, _settings.ObjectHoverColor);
break;
case PalmState.Grabbing:
OutlineMaterial.SetColor(OutlineObjectVisualDecorator.OutlineShaderColorAttributeName, _settings.ObjectGrabbedColor);
break;
}
}
}
/// <summary>
/// Updates the visuals for the cursor which are not dependent upon the grab residual.
/// </summary>
private void SetCursorVisualState()
{
if (_centerHandFeature.PalmState != _lastPalmState)
{
switch (_centerHandFeature.PalmState)
{
case PalmState.Idle:
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = false;
break;
case PalmState.Hovering:
_idleContactSprite.enabled = false;
_hoverSprite.enabled = !MetaLocking.showMouse;
_grabSprite.enabled = false;
break;
case PalmState.Grabbing:
_idleContactSprite.enabled = false;
_hoverSprite.enabled = false;
_grabSprite.enabled = !MetaLocking.showMouse;
break;
}
}
if ((_centerHandFeature.NearObjects.Count != 0) ^ _vicinityOn)
{
_vicinityOn = !_vicinityOn;
if (_vicinityOn && _centerHandFeature.PalmState == PalmState.Idle)
{
_idleContactSprite.enabled = true;
}
if (!_vicinityOn && _centerHandFeature.PalmState == PalmState.Idle)
{
_idleContactSprite.enabled = false;
}
}
_lastPalmState = _centerHandFeature.PalmState;
}
public void SetColor(PalmState state)
{
switch (state)
{
case PalmState.Idle:
_targetColor = Idle;
break;
case PalmState.Hovering:
_targetColor = Highlight;
break;
case PalmState.Grabbing:
_targetColor = Active;
break;
default:
throw new ArgumentOutOfRangeException("state", state, null);
}
_previousColor = _renderer.materials[MaterialIndex].GetColor("_EmissionColor");
_interpAmount = 0f;
}
/// <summary>
/// Lets subscribers know of interaction-related events happening to GameObjects.
/// </summary>
/// <param name="target"></param>
/// <param name="fromState"></param>
/// <param name="toState"></param>
public void AcceptStateTransitionForObject(GameObject target, PalmState fromState, PalmState toState)
{
_onStateTransition.Invoke(target, fromState, toState);
}
public PalmStateMachine()
{
_currentState = PalmState.Idle;
}
public PalmStateTransition(PalmState currentState, PalmStateCommand palmStateCommand)
{
_currentState = currentState;
_palmStateCommand = palmStateCommand;
}
