/// <summary>
/// Wait for the next depth update, then find the plane at the touch position.
/// </summary>
/// <returns>Coroutine IEnumerator.</returns>
/// <param name="touchPosition">Touch position to find a plane at.</param>
private IEnumerator _WaitForDepthAndFindPlane(Vector2 touchPosition)
{
m_findPlaneWaitingForDepth = true;
// Turn on the camera and wait for a single depth update.
m_tangoApplication.SetDepthCameraRate(TangoEnums.TangoDepthCameraRate.MAXIMUM);
while (m_findPlaneWaitingForDepth)
{
yield return(null);
}
m_tangoApplication.SetDepthCameraRate(TangoEnums.TangoDepthCameraRate.DISABLED);
// Find the plane.
Camera cam = Camera.main;
Vector3 planeCenter;
Plane plane;
if (!m_pointCloud.FindPlane(cam, touchPosition, out planeCenter, out plane))
{
yield break;
}
// Ensure the location is always facing the camera. This is like a LookRotation, but for the Y axis.
Vector3 up = plane.normal;
Vector3 forward;
if (Vector3.Angle(plane.normal, cam.transform.forward) < 175)
{
Vector3 right = Vector3.Cross(up, cam.transform.forward).normalized;
forward = Vector3.Cross(right, up).normalized;
}
else
{
// Normal is nearly parallel to camera look direction, the cross product would have too much
// floating point error in it.
forward = Vector3.Cross(up, cam.transform.right);
}
// Instantiate produce object.
newProduceObject = Instantiate(m_producePrefabs[m_currentProduceType],
planeCenter,
Quaternion.LookRotation(forward, up)) as GameObject;
ARProduce produceScript = newProduceObject.GetComponent <ARProduce>();
produceScript.m_type = m_currentProduceType;
produceScript.m_timestamp = (float)m_poseController.LastPoseTimestamp;
Matrix4x4 uwTDevice = Matrix4x4.TRS(m_poseController.transform.position,
m_poseController.transform.rotation,
Vector3.one);
Matrix4x4 uwTProduce = Matrix4x4.TRS(newProduceObject.transform.position,
newProduceObject.transform.rotation,
Vector3.one);
produceScript.m_deviceTProduce = Matrix4x4.Inverse(uwTDevice) * uwTProduce;
m_produceList.Add(newProduceObject);
m_selectedProduce = null;
}
/// <summary>
/// Unity OnGUI function.
///
/// Mainly for removing produce.
/// </summary>
public void OnGUI()
{
if (m_selectedProduce != null)
{
Renderer selectedRenderer = m_selectedProduce.GetComponent <Renderer>();
// GUI's Y is flipped from the mouse's Y
Rect screenRect = Utils.worldBoundsToScreen(Camera.main, selectedRenderer.bounds);
float yMin = Screen.height - screenRect.yMin;
float yMax = Screen.height - screenRect.yMax;
screenRect.yMin = Mathf.Min(yMin, yMax);
screenRect.yMax = Mathf.Max(yMin, yMax);
float halfWidth = screenRect.width / 2;
float halfHeight = screenRect.height / 2;
GUI.BeginGroup(screenRect);
// All rectangles are now adjusted to the group. (0,0) is the topleft corner of the group.
GUI.Box(
new Rect(0, 0, screenRect.width, halfHeight),
"<size=30>" + Utils.RemoveClone(m_selectedProduce.gameObject.name) + "</size>",
m_GUIstyle_information);
string buttonText;
GUIStyle buttonStyle;
if (m_seeOnly)
{
buttonText = "Ok";
buttonStyle = m_GUIstyle_buttonValid;
}
else
{
buttonText = "X";
buttonStyle = m_GUIstyle_buttonRemove;
}
if (GUI.Button(new Rect(0, halfHeight, screenRect.width, halfHeight), buttonText, buttonStyle))
{
m_produceList.Remove(m_selectedProduce.gameObject);
m_selectedProduce.SendMessage("Hide");
m_selectedProduce = null;
m_selectedRect = new Rect();
m_totalProduces = m_totalProduces - 1;
if (m_seeOnly)
{
refreshValidProduces();
}
}
else
{
m_selectedRect = screenRect;
}
// End the group we started above.
GUI.EndGroup();
}
else
{
m_selectedRect = new Rect();
}
}
// Update is called once per frame
void Update()
{
if (m_saveThread != null && m_saveThread.ThreadState != ThreadState.Running)
{
// After saving the scan, we reload the scene.
#pragma warning disable 618
Application.LoadLevel(Application.loadedLevel);
#pragma warning restore 618
}
if (Input.GetKey(KeyCode.Escape))
{
#pragma warning disable 618
Application.LoadLevel(Application.loadedLevel);
#pragma warning restore 618
}
if (!m_initialized)
{
return;
}
if (EventSystem.current.IsPointerOverGameObject(0) || GUIUtility.hotControl != 0)
{
return;
}
if (Input.touchCount == 1)
{
Touch t = Input.GetTouch(0);
Vector2 guiPosition = new Vector2(t.position.x, Screen.height - t.position.y);
Camera cam = Camera.main;
RaycastHit hitInfo;
if (t.phase != TouchPhase.Began)
{
return;
}
if (m_selectedRect.Contains(guiPosition))
{
// do nothing, the button will handle it
}
else if (Physics.Raycast(cam.ScreenPointToRay(t.position), out hitInfo))
{
// Found a produce, select it (so long as it isn't disappearing)!
GameObject tapped = hitInfo.collider.gameObject;
if (!tapped.GetComponent <Animation>().isPlaying)
{
m_selectedProduce = tapped.GetComponent <ARProduce>();
}
}
else
{
if (m_seeOnly)
{
return;
}
// Place a new point at that location, clear selection
m_selectedProduce = null;
StartCoroutine(_WaitForDepthAndFindPlane(t.position));
// Because we may wait a small amount of time, this is a good place to play a small
// animation so the user knows that their input was received.
RectTransform touchEffectRectTransform = Instantiate(m_prefabTouchEffect) as RectTransform;
touchEffectRectTransform.transform.SetParent(m_canvas.transform, false);
Vector2 normalizedPosition = t.position;
normalizedPosition.x /= Screen.width;
normalizedPosition.y /= Screen.height;
touchEffectRectTransform.anchorMin = touchEffectRectTransform.anchorMax = normalizedPosition;
}
}
}