private void ProcessEvent(ref SDL_Event evt)
{
switch (evt.type)
{
case SDL_EventType.ControllerAxisMotion:
SDL_ControllerAxisEvent axisEvent = Unsafe
.As <SDL_Event, SDL_ControllerAxisEvent>(ref evt);
if (axisEvent.which == _instanceId)
{
_axisValues[(int)axisEvent.axis] = axisEvent.value < 0
? -((float)axisEvent.value / short.MinValue)
: (float)axisEvent.value / short.MaxValue;
}
break;
case SDL_EventType.ControllerButtonDown:
case SDL_EventType.ControllerButtonUp:
SDL_ControllerButtonEvent buttonEvent = Unsafe
.As <SDL_Event, SDL_ControllerButtonEvent>(ref evt);
if (buttonEvent.which == _instanceId)
{
int index = (int)buttonEvent.button;
bool down = buttonEvent.state == 1;
_newButtons[index] = !_buttonState[index] && down;
_buttonState[index] = down;
}
break;
}
}
private void ProcessAnEvent(ref SDL_Event ev)
{
int id;
switch (ev.type)
{
case SDL_EventType.ControllerDeviceAdded:
UpdateGamepadRegister();
_applicationMessenger.QueueMessage(FrameworkMessage.GamepadAdded);
break;
case SDL_EventType.ControllerDeviceRemoved:
UpdateGamepadRegister();
_applicationMessenger.QueueMessage(FrameworkMessage.GamepadRemoved);
break;
case SDL_EventType.ControllerDeviceRemapped:
//Unsure if am required to process this event. For future investigation
break;
case SDL_EventType.ControllerButtonUp:
case SDL_EventType.ControllerButtonDown:
SDL_ControllerButtonEvent buttonEvent = Unsafe.As <SDL_Event, SDL_ControllerButtonEvent>(ref ev);
id = buttonEvent.which;
if (_controllers.ContainsKey(id))
{
var controller = _controllers[id];
var button = ToGamepadButton(buttonEvent.button);
var pressed = buttonEvent.state == 1; //SDL_PRESSED and SDL_RELEASED don't appear to exist
controller.ProcessButtonEvent(button, pressed);
}
break;
case SDL_EventType.ControllerAxisMotion:
SDL_ControllerAxisEvent axisEvent = Unsafe.As <SDL_Event, SDL_ControllerAxisEvent>(ref ev);
id = axisEvent.which;
if (_controllers.ContainsKey(id))
{
var controller = _controllers[id];
var axis = ToGamepadAxis(axisEvent.axis);
var value = NormalizeAxis(axisEvent.value);
controller.ProcessAxisEvent(axis, value);
}
break;
}
}
/// <summary>
/// Handles an SDL2 axis motion event.
/// </summary>
/// <param name="evt">The SDL2 event data.</param>
private void OnAxisMotion(SDL_ControllerAxisEvent evt)
{
var value = NormalizeAxisValue(evt.value);
switch ((SDL_GameControllerAxis)evt.axis)
{
case SDL_GameControllerAxis.LEFTX:
prevLeftJoystickX = leftJoystickX;
leftJoystickX = value;
OnAxisChanged(GamePadAxis.LeftJoystickX, value);
CheckForAxisPresses(GamePadAxis.LeftJoystickX, prevLeftJoystickX, value);
break;
case SDL_GameControllerAxis.LEFTY:
prevLeftJoystickY = leftJoystickY;
leftJoystickY = value;
OnAxisChanged(GamePadAxis.LeftJoystickY, value);
CheckForAxisPresses(GamePadAxis.LeftJoystickY, prevLeftJoystickY, value);
break;
case SDL_GameControllerAxis.RIGHTX:
prevRightJoystickX = rightJoystickX;
rightJoystickX = value;
OnAxisChanged(GamePadAxis.RightJoystickX, value);
CheckForAxisPresses(GamePadAxis.RightJoystickX, prevRightJoystickX, value);
break;
case SDL_GameControllerAxis.RIGHTY:
prevRightJoystickY = rightJoystickX;
rightJoystickY = value;
OnAxisChanged(GamePadAxis.RightJoystickY, value);
CheckForAxisPresses(GamePadAxis.RightJoystickY, prevRightJoystickY, value);
break;
case SDL_GameControllerAxis.TRIGGERLEFT:
prevLeftTrigger = leftTrigger;
leftTrigger = value;
OnAxisChanged(GamePadAxis.LeftTrigger, value);
CheckForAxisPresses(GamePadAxis.LeftTrigger, prevLeftTrigger, value);
break;
case SDL_GameControllerAxis.TRIGGERRIGHT:
prevRightTrigger = rightTrigger;
rightTrigger = value;
OnAxisChanged(GamePadAxis.RightTrigger, value);
CheckForAxisPresses(GamePadAxis.RightTrigger, prevRightTrigger, value);
break;
}
}
private void ProcessEvent(ref SDL_Event ev)
{
switch (ev.type)
{
case SDL_EventType.ControllerAxisMotion:
SDL_ControllerAxisEvent axisEvent = Unsafe.As <SDL_Event, SDL_ControllerAxisEvent>(ref ev);
if (axisEvent.which == _controllerIndex)
{
_axisValues[axisEvent.axis] = Normalize(axisEvent.value);
}
break;
case SDL_EventType.ControllerButtonDown:
case SDL_EventType.ControllerButtonUp:
SDL_ControllerButtonEvent buttonEvent = Unsafe.As <SDL_Event, SDL_ControllerButtonEvent>(ref ev);
if (buttonEvent.which == _controllerIndex)
{
_buttons[buttonEvent.button] = buttonEvent.state == 1;
}
break;
}
}
