public override void Process()
{
// Try to get pointer for this input module
pointerEventData = new PointerEventData(EventSystem.current);
GetPointerData(kMouseLeftId, out pointerEventData, true);
pointerEventData.Reset();
pointerEventData.delta = Vector2.zero;
pointerEventData.position = new Vector2(Screen.width * 0.5f, Screen.height * 0.5f);
pointerEventData.scrollDelta = Vector2.zero;
pointerEventData.button = PointerEventData.InputButton.Left;
// Raycast pointer to canvas
m_RaycastResultCache.Clear();
eventSystem.RaycastAll(pointerEventData, m_RaycastResultCache);
pointerEventData.pointerCurrentRaycast = FindFirstRaycast(m_RaycastResultCache);
PointerHitCanvas = m_RaycastResultCache.Count > 0;
UpdatePointerWorldPosition();
// Process presses & events
mouseState.SetButtonState(PointerEventData.InputButton.Left, GetPressState(), pointerEventData);
MouseButtonEventData buttonState = mouseState.GetButtonState(PointerEventData.InputButton.Left).eventData;
if (buttonState.PressedThisFrame())
{
ButtonPress(buttonState.buttonData);
}
if (buttonState.ReleasedThisFrame())
{
ButtonRelease(buttonState.buttonData);
}
ProcessMove(buttonState.buttonData);
if (buttonHeld)
{
ProcessDrag(buttonState.buttonData);
}
}
private UnityEngine.Vector2 ProjectPointer(float x, float y)
{
if (_textureCamera == null)
{
return(new UnityEngine.Vector2(x, UnityEngine.Screen.height - y));
}
else if (_texture != null)
{
// Project using texture coordinates
// First try with Unity GUI RawImage objects
UnityEngine.EventSystems.EventSystem eventSystem = UnityEngine.EventSystems.EventSystem.current;
if (eventSystem != null && eventSystem.IsPointerOverGameObject())
{
UnityEngine.Vector2 pos = new UnityEngine.Vector2(x, y);
if (_pointerData == null)
{
_pointerData = new UnityEngine.EventSystems.PointerEventData(eventSystem)
{
pointerId = 0,
position = pos
};
}
else
{
_pointerData.Reset();
}
_pointerData.delta = pos - _pointerData.position;
_pointerData.position = pos;
UnityEngine.RectTransform rect = GetComponent <UnityEngine.RectTransform>();
if (rect != null &&
UnityEngine.RectTransformUtility.ScreenPointToLocalPointInRectangle(
rect, _pointerData.position, _pointerData.pressEventCamera, out pos))
{
UnityEngine.Vector2 pivot = new UnityEngine.Vector2(
rect.pivot.x * rect.rect.width,
rect.pivot.y * rect.rect.height);
float texCoordX = (pos.x + pivot.x) / rect.rect.width;
float texCoordY = (pos.y + pivot.y) / rect.rect.height;
float localX = _texture.width * texCoordX;
float localY = _texture.height * (1.0f - texCoordY);
return(new UnityEngine.Vector2(localX, localY));
}
}
// NOTE: A MeshCollider must be attached to the target to obtain valid
// texture coordinates, otherwise Hit Testing won't work
UnityEngine.Ray ray = UnityEngine.Camera.main.ScreenPointToRay(new UnityEngine.Vector3(x, y, 0));
UnityEngine.RaycastHit hit;
if (UnityEngine.Physics.Raycast(ray, out hit))
{
if (hit.collider.gameObject == gameObject)
{
float localX = _texture.width * hit.textureCoord.x;
float localY = _texture.height * (1.0f - hit.textureCoord.y);
return(new UnityEngine.Vector2(localX, localY));
}
}
return(new UnityEngine.Vector2(-1, -1));
}
return(Vector2.zero);
}
/// <summary>
/// Raises the begin drag event.
/// </summary>
/// <param name="eventData">Event data.</param>
public virtual void OnBeginDrag(PointerEventData eventData)
{
if (!this.enabled || !this.IsAssigned() || !this.m_DragAndDropEnabled)
{
eventData.Reset();
return;
}
// Check if we have a key modifier and if it's held down
if (!this.DragKeyModifierIsDown())
{
eventData.Reset();
return;
}
// Start the drag
this.m_DragHasBegan = true;
// Create the temporary icon for dragging
this.CreateTemporaryIcon(eventData);
// Prevent event propagation
eventData.Use();
}
private void CastRayFromGaze()
{
pointerData = (pointerData == null ? new PointerEventData(eventSystem) : pointerData);
pointerData.Reset();
pointerData.position = new Vector3(hotspot.x * Screen.width, hotspot.y * Screen.height);
eventSystem.RaycastAll(pointerData, m_RaycastResultCache);
//List<RaycastResult> removeResult = new List<RaycastResult>();
//foreach (RaycastResult rayResult in m_RaycastResultCache)
//{
// if (interactTag != null && interactTag.Length > 1 && !rayResult.gameObject.tag.Equals(interactTag))
// {
// removeResult.Add(rayResult);
// }
//}
//foreach (RaycastResult rayResult in removeResult)
//{
// m_RaycastResultCache.Remove(rayResult);
//}
//TO-DO: FIND OUT HOW TO GET SPECIFIC RAYCAST FOR THIS OBJECT.
pointerData.pointerCurrentRaycast = FindFirstRaycast(m_RaycastResultCache);
m_RaycastResultCache.Clear();
}
