/// <summary>
/// Converts the native TabletDeviceStatesListNative structure into an array of TabletState structures.
/// </summary>
/// <param name="deviceStatesNative">The retrieved TabletDeviceStatesListNative structure.</param>
/// <returns>Returns an array of TabletState structures.</returns>
public static MLInput.TabletState[] DeviceStatesToArray(TabletDeviceStatesListNative deviceStatesNative)
{
MLInput.TabletState[] deviceStates = new MLInput.TabletState[deviceStatesNative.Count];
for (int i = 0; i < (int)deviceStatesNative.Count; i++)
{
deviceStates[i] = Marshal.PtrToStructure <NativeBindings.TabletDeviceStateNative>(deviceStatesNative.Data + (i * Marshal.SizeOf(typeof(NativeBindings.TabletDeviceStateNative)))).Data;
}
return(deviceStates);
}
private void HandleOnTabletPenTouch(byte tabletId, MLInput.TabletState tabletState)
{
// Set the location of the pen.
_pen.localPosition = new Vector3(tabletState.PenTouchPosAndForce.x / -7.75f, tabletState.PenDistance / 100, tabletState.PenTouchPosAndForce.y / 13.25f);
// Set the rotation of the pen.
if (tabletState.ValidityCheck.HasFlag(MLInput.TabletDeviceStateMask.HasAdditionalPenTouchData))
{
_pen.localRotation = Quaternion.Euler(-90, 0, 0) * Quaternion.Euler(tabletState.AdditionalPenTouchData[1], tabletState.AdditionalPenTouchData[0] * -1, 0);
}
// Only draw when the pen is touching.
if (tabletState.IsPenTouchActive)
{
// Determine the hit location on the canvas from the location of the pen.
if (Physics.Raycast(new Ray(_pen.transform.position + (_pen.transform.forward * 0.0025f), _canvasRenderer.transform.up * -1), out _pixelHit))
{
// Confirm the correct object is being hit.
if (_pixelHit.collider.gameObject == _canvasRenderer.gameObject)
{
// Only draw the pixel if it doesn't match what was detected.
if (_pixelPoint != _pixelHit.lightmapCoord)
{
_pixelPoint = _pixelHit.lightmapCoord;
_pixelPoint.y *= RESOLUTION;
_pixelPoint.x *= RESOLUTION;
// Check if the tool type is set to erase, or if the user is pressing the erase button.
bool erase = (tabletState.ToolType == MLInput.TabletDeviceToolType.Eraser || ButtonErase);
DrawTexture(_canvas, _pixelPoint.x, _pixelPoint.y, tabletState.PenTouchPosAndForce.z, erase);
}
}
}
}
// Update our last state, used for on-screen information.
LastPositionAndForce = tabletState.PenTouchPosAndForce;
LastDistance = tabletState.PenDistance;
// Pen tilt information.
if (tabletState.ValidityCheck.HasFlag(MLInput.TabletDeviceStateMask.HasAdditionalPenTouchData))
{
LastTilt = new Vector2(tabletState.AdditionalPenTouchData[0], tabletState.AdditionalPenTouchData[1]);
}
LastIsTouching = tabletState.IsPenTouchActive;
LastToolType = tabletState.ToolType;
}
