/// <summary>
/// Attach the Overlay to [device] at [scale] size with offset [offset], and base position [point].
/// [point] isn't used for HMD or World, and can be ignored.
/// </summary>
/// <param name="device"></param>
/// <param name="scale"></param>
/// <param name="offset"></param>
/// <param name="point"></param>
public void AttachTo(MountDevice device, float scale, Vector3 offset, MountLocation point = MountLocation.Center)
{
// Update Overlay Anchor position
GetOverlayPosition();
// Update cached values
_anchorDevice = device;
AnchorDevice = device;
_anchorPoint = point;
AnchorPoint = point;
_anchorOffset = offset;
AnchorOffset = offset;
Scale = scale;
// Attach Overlay
switch (device)
{
case MountDevice.Screen:
_anchor = OpenVR.k_unTrackedDeviceIndexInvalid;
OverlayReference.transform.localPosition = -offset;
OverlayReference.transform.localRotation = Quaternion.identity;
break;
case MountDevice.World:
_anchor = OpenVR.k_unTrackedDeviceIndexInvalid;
OverlayReference.transform.localPosition = -offset;
OverlayReference.transform.localRotation = Quaternion.identity;
break;
case MountDevice.LeftController:
_anchor = HOTK_TrackedDeviceManager.Instance.LeftIndex;
AttachToController(point, offset);
break;
case MountDevice.RightController:
_anchor = HOTK_TrackedDeviceManager.Instance.RightIndex;
AttachToController(point, offset);
break;
default:
throw new ArgumentOutOfRangeException("device", device, null);
}
}
/// <summary>
/// Update the Overlay's Position and Rotation, relative to the selected controller, attaching it to [point] with offset [offset]
/// </summary>
/// <param name="point"></param>
/// <param name="offset"></param>
private void AttachToController(MountLocation point, Vector3 offset)
{
float dx = offset.x, dy = offset.y, dz = offset.z;
// Offset our position based on the Attachment Point
switch (point)
{
case MountLocation.Center:
break;
case MountLocation.FlatAbove:
dz += 0.05f;
break;
case MountLocation.FlatBelow:
dz -= 0.18f;
break;
case MountLocation.FlatBelowFlipped:
dz += 0.18f;
break;
case MountLocation.Above:
dz -= 0.01f;
break;
case MountLocation.AboveFlipped:
dz += 0.01f;
break;
case MountLocation.Below:
dz += 0.1f;
break;
case MountLocation.BelowFlipped:
dz -= 0.1f;
break;
case MountLocation.Up:
dy += 0.5f;
break;
case MountLocation.Down:
dy -= 0.5f;
break;
case MountLocation.Left:
dx -= 0.5f;
break;
case MountLocation.Right:
dx += 0.5f;
break;
default:
throw new ArgumentOutOfRangeException("point", point, null);
}
Vector3 pos;
var rot = Quaternion.identity;
// Apply position and rotation to Overlay anchor
// Some Axis are flipped here to reorient the offset
switch (point)
{
case MountLocation.FlatAbove:
case MountLocation.FlatBelow:
pos = new Vector3(dx, dy, dz);
break;
case MountLocation.FlatBelowFlipped:
pos = new Vector3(dx, -dy, -dz);
rot = Quaternion.AngleAxis(180f, new Vector3(1f, 0f, 0f));
break;
case MountLocation.Center:
case MountLocation.Above:
case MountLocation.Below:
pos = new Vector3(dx, -dz, dy);
rot = Quaternion.AngleAxis(90f, new Vector3(1f, 0f, 0f));
break;
case MountLocation.Up:
case MountLocation.Down:
case MountLocation.Left:
case MountLocation.Right:
pos = new Vector3(dx, -dz, dy);
rot = Quaternion.AngleAxis(90f, new Vector3(1f, 0f, 0f));
break;
case MountLocation.AboveFlipped:
case MountLocation.BelowFlipped:
pos = new Vector3(-dx, dz, dy);
rot = Quaternion.AngleAxis(90f, new Vector3(1f, 0f, 0f)) * Quaternion.AngleAxis(180f, new Vector3(0f, 1f, 0f));
break;
default:
throw new ArgumentOutOfRangeException("point", point, null);
}
OverlayReference.transform.localPosition = pos;
_anchorRotation = rot;
var changed = false;
CheckOverlayRotationChanged(ref changed, true); // Force rotational update
}
/// <summary>
/// Attach the Overlay to [device] at [scale], and base position [point].
/// [point] isn't used for HMD or World, and can be ignored.
/// </summary>
/// <param name="device"></param>
/// <param name="scale"></param>
/// <param name="point"></param>
public void AttachTo(MountDevice device, float scale, MountLocation point = MountLocation.Center)
{
AttachTo(device, scale, Vector3.zero, point);
}