// use -1 for absolute tracking space
public static int GetDeviceIndex(DeviceRelation relation,
TrackedDeviceClass deviceClass = TrackedDeviceClass.Controller,
int relativeTo = (int)OpenVR.k_unTrackedDeviceIndex_Hmd)
{
var invXform = ((uint)relativeTo < OpenVR.k_unTrackedDeviceIndex_Hmd) ?
Input(relativeTo).transform.GetInverse() : SteamVR_Utils.RigidTransform.identity;
var vr = SteamVR.instance;
var result = -1;
var best = -float.MaxValue;
var dir = (relation == DeviceRelation.Leftmost) ? Vector3.left : Vector3.right;
for (int i = 0; i < OpenVR.k_unMaxTrackedDeviceCount; i++)
{
if (i == relativeTo || vr.hmd.GetTrackedDeviceClass((uint)i) != deviceClass)
continue;
var device = Input(i);
if (!device.connected)
continue;
if (relation == DeviceRelation.First)
return i;
var score = Vector3.Dot(dir, invXform * device.transform.pos);
if (score > best)
{
result = i;
best = score;
}
}
return result;
}
// use -1 for absolute tracking space
public static int GetDeviceIndex(DeviceRelation relation,
TrackedDeviceClass deviceClass = TrackedDeviceClass.Controller,
int relativeTo = (int)OpenVR.k_unTrackedDeviceIndex_Hmd)
{
var invXform = ((uint)relativeTo < OpenVR.k_unMaxTrackedDeviceCount) ?
Input(relativeTo).transform.GetInverse() : SteamVR_Utils.RigidTransform.identity;
var vr = SteamVR.instance;
var result = -1;
var best = -float.MaxValue;
for (int i = 0; i < OpenVR.k_unMaxTrackedDeviceCount; i++)
{
if (i == relativeTo || vr.hmd.GetTrackedDeviceClass((uint)i) != deviceClass)
continue;
var device = Input(i);
if (!device.connected)
continue;
if (relation == DeviceRelation.First)
return i;
float score;
var pos = invXform * device.transform.pos;
if (relation == DeviceRelation.FarthestRight)
{
score = pos.x;
}
else if (relation == DeviceRelation.FarthestLeft)
{
score = -pos.x;
}
else
{
var dir = new Vector3(pos.x, 0.0f, pos.z).normalized;
var dot = Vector3.Dot(dir, Vector3.forward);
var cross = Vector3.Cross(dir, Vector3.forward);
if (relation == DeviceRelation.Leftmost)
{
score = (cross.y > 0.0f) ? 2.0f - dot : dot;
}
else
{
score = (cross.y < 0.0f) ? 2.0f - dot : dot;
}
}
if (score > best)
{
result = i;
best = score;
}
}
return result;
}
public static int GetDeviceIndex(DeviceRelation relation,
ETrackedDeviceClass deviceClass = ETrackedDeviceClass.Controller,
int relativeTo = (int)OpenVR.k_unTrackedDeviceIndex_Hmd) // use -1 for absolute tracking space
{
var result = -1;
var invXform = ((uint)relativeTo < OpenVR.k_unMaxTrackedDeviceCount) ?
Matrix.Invert(Input(relativeTo).transform) : Matrix.Identity;
var system = OpenVR.System;
if (system == null)
{
return(result);
}
var best = -float.MaxValue;
for (int i = 0; i < OpenVR.k_unMaxTrackedDeviceCount; i++)
{
if (i == relativeTo || system.GetTrackedDeviceClass((uint)i) != deviceClass)
{
continue;
}
var device = Input(i);
if (!device.connected)
{
continue;
}
if (relation == DeviceRelation.First)
{
return(i);
}
float score;
var pos = Vector3.Transform(device.transform.Pos(), invXform);
if (relation == DeviceRelation.FarthestRight)
{
score = pos.X;
}
else if (relation == DeviceRelation.FarthestLeft)
{
score = -pos.X;
}
else
{
var dir = Vector3.Normalize(new Vector3(pos.X, 0.0f, pos.Z));
var dot = Vector3.Dot(dir, Vector3.UnitZ);
var cross = Vector3.Cross(dir, Vector3.UnitZ);
if (relation == DeviceRelation.Leftmost)
{
score = (cross.Y > 0.0f) ? 2.0f - dot : dot;
}
else
{
score = (cross.Y < 0.0f) ? 2.0f - dot : dot;
}
}
if (score > best)
{
result = i;
best = score;
}
}
return(result);
}
public static int GetDeviceIndex(DeviceRelation relation,
ETrackedDeviceClass deviceClass = ETrackedDeviceClass.Controller,
int relativeTo = (int)OpenVR.k_unTrackedDeviceIndex_Hmd) // use -1 for absolute tracking space
{
var result = -1;
var invXform = ((uint)relativeTo < OpenVR.k_unMaxTrackedDeviceCount) ?
Input(relativeTo).transform.GetInverse() : SteamVR_Utils.RigidTransform.identity;
var system = OpenVR.System;
if (system == null)
{
return(result);
}
var best = -float.MaxValue;
for (int i = 0; i < OpenVR.k_unMaxTrackedDeviceCount; i++)
{
if (i == relativeTo || system.GetTrackedDeviceClass((uint)i) != deviceClass)
{
continue;
}
var device = Input(i);
if (!device.connected)
{
continue;
}
if (relation == DeviceRelation.First)
{
return(i);
}
float score;
var pos = invXform * device.transform.pos;
if (relation == DeviceRelation.FarthestRight)
{
score = pos.x;
}
else if (relation == DeviceRelation.FarthestLeft)
{
score = -pos.x;
}
else
{
var dir = new Vector3(pos.x, 0.0f, pos.z).normalized;
var dot = Vector3.Dot(dir, Vector3.forward);
var cross = Vector3.Cross(dir, Vector3.forward);
if (relation == DeviceRelation.Leftmost)
{
score = (cross.y > 0.0f) ? 2.0f - dot : dot;
}
else
{
score = (cross.y < 0.0f) ? 2.0f - dot : dot;
}
}
if (score > best)
{
result = i;
best = score;
}
}
return(result);
}
