/// <summary>
/// Function to enumerate and update the active controllers list.
/// </summary>
private void UpdateActiveControllers()
{
IReadOnlyList <IGorgonGamingDeviceInfo> controllers = _driver.EnumerateGamingDevices(true);
// Enumerate the active controllers. We'll only take 3 of the 4 available xbox controllers, and only if they have the correct capabilities.
_controllers = controllers.Where(item => (item.Capabilities & GamingDeviceCapabilityFlags.SupportsThrottle) == GamingDeviceCapabilityFlags.SupportsThrottle &&
(item.Capabilities & GamingDeviceCapabilityFlags.SupportsSecondaryXAxis) == GamingDeviceCapabilityFlags.SupportsSecondaryXAxis &&
(item.Capabilities & GamingDeviceCapabilityFlags.SupportsSecondaryYAxis) == GamingDeviceCapabilityFlags.SupportsSecondaryYAxis &&
(item.Capabilities & GamingDeviceCapabilityFlags.SupportsVibration) == GamingDeviceCapabilityFlags.SupportsVibration &&
(item.Capabilities & GamingDeviceCapabilityFlags.SupportsRudder) == GamingDeviceCapabilityFlags.SupportsRudder)
.Take(3)
.Select(item => _driver.CreateGamingDevice(item)).ToArray();
for (int i = 0; i < _controllers.Count; i++)
{
if (!_controllers[i].IsConnected)
{
continue;
}
// Start at a random spot.
_stickPosition[i] = new Point(GorgonRandom.RandomInt32(64, panelDisplay.ClientSize.Width - 64),
GorgonRandom.RandomInt32(64, panelDisplay.ClientSize.Height - 64));
// Turn off spray for all controllers.
_sprayStates[i] = new SprayCan(_controllers[i], i);
}
}
/// <summary>
/// Function to draw a spray on the screen.
/// </summary>
/// <param name="device">Controller to use for the spray.</param>
/// <param name="index">Index of the controller.</param>
private void DrawSpray(IGorgonGamingDevice device, int index)
{
SprayCan state = _sprayStates[index];
// Update the origin of the spray.
state.Origin = _stickPosition[index];
GorgonRange throttleRange = device.Info.AxisInfo[GamingDeviceAxis.RightTrigger].Range;
// Find out if we're spraying.
if (device.Axis[GamingDeviceAxis.RightTrigger].Value > throttleRange.Minimum)
{
if ((!state.IsActive) && (!state.NeedReset))
{
// Convert the throttle value to a unit value.
float throttleUnit = ((float)(device.Axis[GamingDeviceAxis.RightTrigger].Value - throttleRange.Minimum) / throttleRange.Range);
// Set up the spray state.
state.Position = state.Origin;
state.Amount = throttleRange.Range / 2.0f;
state.Time = throttleUnit * 10.0f;
state.VibrationAmount = device.Info.VibrationMotorRanges[1].Maximum;
state.SprayAlpha = (throttleUnit * 239.0f) + 16;
state.IsActive = true;
}
}
else
{
state.IsActive = false;
}
if (!state.IsActive)
{
return;
}
// Update the state spray effect.
state.Update();
_surface.DrawPoint(Point.Round(state.Position), state.SprayColor, state.SprayPointSize);
}
