private static InputDevice CreateOnScreenDevice(string layout, OnScreenControl onScreenControl)
{
var device = InputSystem.AddDevice(layout);
InputEventPtr eventPtr;
var buffer = StateEvent.From(device, out eventPtr, Allocator.Persistent);
OnScreenDeviceEventInfo deviceEventInfo;
deviceEventInfo.eventPtr = eventPtr;
deviceEventInfo.buffer = buffer;
deviceEventInfo.device = device;
deviceEventInfo.firstControl = onScreenControl;
s_DeviceEventInfoArray.Append(deviceEventInfo);
return(device);
}
public OnScreenDeviceInfo RemoveControl(OnScreenControl control)
{
if (firstControl == control)
{
firstControl = control.m_NextControlOnDevice;
}
else
{
for (OnScreenControl current = firstControl.m_NextControlOnDevice, previous = firstControl;
current != null; previous = current, current = current.m_NextControlOnDevice)
{
if (current != control)
{
continue;
}
previous.m_NextControlOnDevice = current.m_NextControlOnDevice;
break;
}
}
control.m_NextControlOnDevice = null;
return(this);
}
private InputControl RegisterInputControl(string controlPath)
{
var layout = InputControlPath.TryGetDeviceLayout(controlPath);
if (layout == null)
{
throw new Exception(string.Format("Could not parse a device layout for the {0} control path",
controlPath));
}
m_Layout = layout;
// Check if we already have a a device created for this type of OnScreenControl
int deviceIndex = GetDeviceEventIndex(layout);
// If we do not have a device created yet, create a new one
if (deviceIndex < 0)
{
var device = CreateOnScreenDevice(layout, this);
if (device == null)
{
throw new Exception(string.Format("Could not create a device for the {0} control path",
controlPath));
}
return(InputControlPath.TryFindControl(device, controlPath));
}
else
{
m_NextControlOnDevice = s_DeviceEventInfoArray[deviceIndex].firstControl.m_NextControlOnDevice;
var temp = s_DeviceEventInfoArray[deviceIndex].firstControl;
temp.m_NextControlOnDevice = this;
return(InputControlPath.TryFindControl(s_DeviceEventInfoArray[deviceIndex].device, controlPath));
}
}
public OnScreenDeviceInfo AddControl(OnScreenControl control)
{
control.m_NextControlOnDevice = firstControl;
firstControl = control;
return(this);
}
