void Update()
{
#if UNITY_EDITOR
SimulateAR();
return;
#endif
_QuitOnConnectionErrors();
// The tracking state must be FrameTrackingState.Tracking in order to access the Frame.
if (Frame.TrackingState != FrameTrackingState.Tracking)
{
const int LOST_TRACKING_SLEEP_TIMEOUT = 15;
Screen.sleepTimeout = LOST_TRACKING_SLEEP_TIMEOUT;
return;
}
Screen.sleepTimeout = SleepTimeout.NeverSleep;
Frame.GetNewPlanes(ref m_newPlanes);
// Iterate over planes found in this frame and instantiate corresponding GameObjects to visualize them.
for (int i = 0; i < m_newPlanes.Count; i++)
{
// Instantiate a plane visualization prefab and set it to track the new plane. The transform is set to
// the origin with an identity rotation since the mesh for our prefab is updated in Unity World
// coordinates.
GameObject planeObject = Instantiate(m_trackedPlanePrefab, Vector3.zero, Quaternion.identity,
transform);
planeObject.GetComponent <TrackedPlaneVisualizer>().SetTrackedPlane(m_newPlanes[i]);
planeObject.GetComponent <Renderer>().material.SetFloat("_UvRotation", Random.Range(0.0f, 360.0f));
}
// Disable the snackbar UI when no planes are valid.
bool showSearchingUI = true;
Frame.GetAllPlanes(ref m_allPlanes);
for (int i = 0; i < m_allPlanes.Count; i++)
{
if (m_allPlanes[i].IsValid)
{
showSearchingUI = false;
break;
}
}
m_searchingForPlaneUI.SetActive(showSearchingUI);
if (Input.touches.Length > 0)
{
TouchPhase t = Input.touches[0].phase; //just look at first touch until we decide how to handle multitouch
if (t == TouchPhase.Ended)
{
tapMode = false;
}
Ray ray = CameraSingleton.Instance.GetActiveCamera().ScreenPointToRay(Input.GetTouch(0).position);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
if (t == TouchPhase.Began)
{
TouchObject o = hit.collider.gameObject.GetComponent <TouchObject>();
if (o)
{
o.OnTouch();
tapMode = true;
}
}
}
if (!tapMode && t != TouchPhase.Ended)
{
TrackableHit tHit;
TrackableHitFlag raycastFilter = TrackableHitFlag.PlaneWithinBounds | TrackableHitFlag.PlaneWithinPolygon;
Vector3 rotatedForward = Quaternion.Euler(Random.Range(-6f, 6f), Random.Range(-6f, 6f), 0f) * ray.direction;
Ray rotatedRay = new Ray(ray.origin, rotatedForward);
bool cancelOut = false;
// Randomly select an item to spawn from the list
SpawnItem item = WeightedSelection.RandomItem <SpawnItem>(spawnPrefabs, FindWeight);
if (Session.Raycast(rotatedRay, raycastFilter, out tHit))
{
for (int i = 0; i < spawnedObjects.Count; i++)
{
if (spawnedObjects[i] != null)
{
float d = Vector3.Distance(tHit.Point, spawnedObjects[i].obj.transform.position);
float padding = item.positionPadding + spawnedObjects[i].positionPadding;
if (d < padding)
{
cancelOut = true;
break;
}
}
else
{
randomGrassLocation.text = "Found a null grass object! Removing";
spawnedObjects.Remove(spawnedObjects[i]);
}
}
#if TESTING
if (Time.timeSinceLevelLoad > lastSample + 1f)
{
hitPointText.text = "Hit point: " + tHit.Point.ToString();
closestGrassText.text = "No longer calculating";
grassObjectsCount.text = "Grass count: " + spawnedObjects.Count.ToString();
if (spawnedObjects.Count > 0)
{
randomGrassLocation.text = spawnedObjects[Random.Range(0, spawnedObjects.Count)].transform.position.ToString();
}
lastSample = Time.timeSinceLevelLoad;
}
#endif
if (cancelOut)
{
return;
}
// Create an anchor to allow ARCore to track the hitpoint as understanding of the physical
// world evolves.
var anchor = Session.CreateAnchor(tHit.Point, Quaternion.identity);
GameObject newObj = item.DoSetup(tHit.Point, anchor.transform);
SpawnedItem newItem = new SpawnedItem();
newItem.obj = newObj; newItem.positionPadding = item.positionPadding;
spawnedObjects.Add(newItem);
newObj.transform.rotation = Quaternion.Euler(0.0f,
Random.Range(-360f, 360f), 0f);
// Use a plane attachment component to maintain y-offset from the plane (occurs after anchor updates).
newObj.GetComponent <PlaneAttachment>().Attach(tHit.Plane);
}
}
}
}
void SimulateAR()
{
if (Input.GetMouseButton(0))
{
bool touchedObject = false;
Ray ray = CameraSingleton.Instance.GetActiveCamera().ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
TouchObject o = hit.collider.gameObject.GetComponent <TouchObject>();
if (o)
{
o.OnTouch();
touchedObject = true;
}
}
if (!touchedObject)
{
RaycastHit tHit;
Vector3 rotatedForward = Quaternion.Euler(Random.Range(-6f, 6f), Random.Range(-6f, 6f), 0f) * ray.direction;
Ray rotatedRay = new Ray(ray.origin, rotatedForward);
bool cancelOut = false;
// Randomly select an item to spawn from the list
SpawnItem item = WeightedSelection.RandomItem <SpawnItem>(spawnPrefabs, FindWeight);
if (Physics.Raycast(rotatedRay, out tHit))
{
for (int i = 0; i < spawnedObjects.Count; i++)
{
if (spawnedObjects[i] != null)
{
float d = Vector3.Distance(tHit.point, spawnedObjects[i].obj.transform.position);
float padding = item.positionPadding + spawnedObjects[i].positionPadding;
if (d < padding)
{
cancelOut = true;
break;
}
}
else
{
randomGrassLocation.text = "Found a null grass object! Removing";
spawnedObjects.Remove(spawnedObjects[i]);
}
}
#if TESTING
if (Time.timeSinceLevelLoad > lastSample + 1f)
{
hitPointText.text = "Hit point: " + tHit.Point.ToString();
closestGrassText.text = "No longer calculating";
grassObjectsCount.text = "Grass count: " + spawnedObjects.Count.ToString();
if (spawnedObjects.Count > 0)
{
randomGrassLocation.text = spawnedObjects[Random.Range(0, spawnedObjects.Count)].transform.position.ToString();
}
lastSample = Time.timeSinceLevelLoad;
}
#endif
if (cancelOut)
{
return;
}
GameObject newObj = item.DoSetup(tHit.point, GameObject.Find("TestingArea").transform);
SpawnedItem newItem = new SpawnedItem();
newItem.obj = newObj; newItem.positionPadding = item.positionPadding;
spawnedObjects.Add(newItem);
newObj.transform.rotation = Quaternion.Euler(0.0f,
Random.Range(-360f, 360f), 0f);
}
}
}
}
