public void OnRayCastSend(RayCastAndroidMessage msg)
{
Debug.Log("Image Target Name: " + msg.imageTargetName);
Debug.Log("Camera's Position w.r.t Image Target: " + msg.cameraPosition);
Debug.Log("Ray Direction in WorldSpace: " + msg.rayDirection);
// trace the ray on the hololens here
// Raycast against all GameObjects that are on spatial mesh
int layerMask = 1 << LayerMask.NameToLayer("SpatialMesh");
//construct a Ray using the camera's position and tap direction
Vector3 origin = msg.cameraPosition + this.gameObject.transform.position;
Ray tapRay = new Ray(origin, msg.rayDirection);
//Raycast using constructed Ray and store collisions in array hits
RaycastHit[] hits = Physics.RaycastAll(tapRay, float.MaxValue, layerMask);
string dm = "";
Vector3 tmpPos = new Vector3(0, 0, 0);
if (hits.Length > 0)
{
foreach (RaycastHit hit in hits)
{
dm += string.Format("Hit Object **\"**{0}**\"** at position **\"**{1}**\"**", hit.collider.gameObject, hit.point);
tmpPos = hit.point - this.gameObject.transform.position;
}
}
else
{
dm += "Nothing was hit.";
}
// sends information back to the Android
RayCastHololensMessage hololensMsg = new RayCastHololensMessage()
{
targetPosition = tmpPos,
debugMsg = dm
};
NetworkClient.Send(hololensMsg);
}
// Input: the clicked or touched screen position
void rayCast(Vector3 position)
{
Debug.Log("Debug: touched or clicked screen");
// find the ARCamera
GameObject camObject = GameObject.Find("ARCamera");
Camera cam = camObject.GetComponent <Camera>();
// Calculate the ray
Ray ray = cam.ScreenPointToRay(position); // this resulting ray is in WORLDSPACE (which is good!)
// Need to send 3 things to Hololens:
// 1) Which image Target is this relative to
// 2) Camera position w.r.t the image target position
// 3) Ray direction
Vector3 originPosition = camObject.transform.position - this.gameObject.transform.position;
//Debug.Log("Image Target Name: " + this.gameObject.name);
//Debug.Log("Camera's Position w.r.t Image Target: " + originPosition.ToString());
//Debug.Log("Ray Direction in WorldSpace: " + ray.direction.ToString());
RayCastAndroidMessage msg = new RayCastAndroidMessage()
{
imageTargetName = this.gameObject.name,
cameraPosition = originPosition,
rayDirection = ray.direction
};
NetworkServer.SendToAll(msg);
/*
* // on the Hololens, using the image target's name, we get the image target's world position
* // then, we can get the camera's world position,
* // and finally, we shoot a ray from that camera's position in the given direction
* // how we cast the ray looks like the below code:
* RaycastHit Hit;
* if (Physics.Raycast(ray, out Hit))
* {
* objName = Hit.transform.name;
* }*/
}
