//left to do: maximizing/minimizing
/// <summary>
/// Handles all window related sdl events.
/// </summary>
internal static void WindowEvent(SDL.Event e)
{
switch (e.window.windowEvent)
{
case SDL.WindowEventID.WINDOWEVENT_SIZE_CHANGED:
_Size = new Point(e.window.data1, e.window.data2);
break;
}
}
internal static void InputEvent(SDL.Event e)
{
switch (e.type)
{
case SDL.EventType.MOUSEBUTTONDOWN:
{
CurrentState.Add((Button)(1000 + e.button.button));
break;
}
case SDL.EventType.MOUSEBUTTONUP:
{
CurrentState.Remove((Button)(1000 + e.button.button));
break;
}
case SDL.EventType.MOUSEWHEEL:
{
if (e.wheel.y > 0)
{
CurrentState.Add(Button.MousewheelUp);
}
if (e.wheel.y < 0)
{
CurrentState.Add(Button.MousewheelDown);
}
if (e.wheel.x < 0)
{
CurrentState.Add(Button.MousewheelLeft);
}
if (e.wheel.x > 0)
{
CurrentState.Add(Button.MousewheelRight);
}
break;
}
case SDL.EventType.MOUSEMOTION:
{
UntranslatedMousePosition = new Point(e.motion.x, e.motion.y);
break;
}
case SDL.EventType.KEYDOWN:
{
if (e.key.repeat == 0) //we dont do repeats (yet?)
{
int SDLKeyDown = (int)e.key.keysym.sym;
if (SDLKeyDown < 65536)
{
CurrentState.Add((Button)(2000 + SDLKeyDown));
}
else
{
CurrentState.Add((Button)(SDLKeyDown - 1073739381));
}
}
//textinput special keys
switch (e.key.keysym.sym)
{
//backspace removes last character from all text input builders
case SDL.Keycode.SDLK_BACKSPACE:
TextInputReceivers.ForEach(builder =>
{
int length = builder.Length;
if (length > 0)
{
builder.Remove(length - 1, 1);
}
});
break;
case SDL.Keycode.SDLK_RETURN:
TextInputReceivers.ForEach(builder => builder.Append('\n'));
break;
case SDL.Keycode.SDLK_TAB:
TextInputReceivers.ForEach(builder => builder.Append('\t'));
break;
}
break;
}
case SDL.EventType.KEYUP:
{
int SDLKeyUp = (int)e.key.keysym.sym;
if (SDLKeyUp < 65536)
{
CurrentState.Remove((Button)(2000 + SDLKeyUp));
}
else
{
CurrentState.Remove((Button)(SDLKeyUp - 1073739381));
}
break;
}
case SDL.EventType.TEXTINPUT:
{
byte[] rawBytes = new byte[SDL.TEXTINPUTEVENT_TEXT_SIZE];
unsafe { Marshal.Copy((IntPtr)e.text.text, rawBytes, 0, SDL.TEXTINPUTEVENT_TEXT_SIZE); }
int length = Array.IndexOf <byte>(rawBytes, 0);
string text = Encoding.UTF8.GetString(rawBytes, 0, length);
//add text to all stringbuilders in TextInputReceivers
TextInputReceivers.ForEach(builder => builder.Append(text));
break;
}
case SDL.EventType.CONTROLLERDEVICEADDED:
{
//get first free gamepad slot
int newGamepadID = -1;
while (GamepadHandles[++newGamepadID] != IntPtr.Zero)
{
;
}
GamepadHandles[newGamepadID] = SDL.GameControllerOpen(e.cdevice.which);
IntPtr joystick = SDL.GameControllerGetJoystick(GamepadHandles[newGamepadID]);
GamepadInstanceIDs.Add(SDL.JoystickInstanceID(joystick), newGamepadID);
GamepadCurrentStates[newGamepadID] = new List <Button>();
GamepadPreviousStates[newGamepadID] = new List <Button>();
//init rumble if supported
if (SDL.JoystickIsHaptic(joystick) == 1)
{
IntPtr hapticHandle = SDL.HapticOpenFromJoystick(joystick);
if (SDL.HapticRumbleSupported(hapticHandle) == 1)
{
SDL.HapticRumbleInit(hapticHandle);
GamepadHapticHandles[newGamepadID] = hapticHandle;
}
else
{
SDL.HapticClose(hapticHandle);
}
}
break;
}
case SDL.EventType.CONTROLLERDEVICEREMOVED:
{
int gamepadID = GamepadInstanceIDs[e.cdevice.which];
SDL.GameControllerClose(GamepadHandles[gamepadID]);
GamepadHandles[gamepadID] = IntPtr.Zero;
GamepadInstanceIDs.Remove(e.cdevice.which);
if (GamepadHapticHandles[gamepadID] != IntPtr.Zero)
{
SDL.HapticClose(GamepadHapticHandles[gamepadID]);
GamepadHapticHandles[gamepadID] = IntPtr.Zero;
}
break;
}
case SDL.EventType.CONTROLLERBUTTONDOWN:
{
GamepadCurrentStates[GamepadInstanceIDs[e.cbutton.which]].Add((Button)(3000 + e.cbutton.button));
break;
}
case SDL.EventType.CONTROLLERBUTTONUP:
{
GamepadCurrentStates[GamepadInstanceIDs[e.cbutton.which]].Remove((Button)(3000 + e.cbutton.button));
break;
}
case SDL.EventType.CONTROLLERAXISMOTION:
{
int gamepad = GamepadInstanceIDs[e.caxis.which];
byte axis = e.caxis.axis;
float value = (float)e.caxis.axisValue / short.MaxValue;
GamepadAxisValues[gamepad, axis] = value;
if (value <= -GamepadDeadZone)
{
//add button if it's not added yet
Button button = (Button)(3015 + e.caxis.axis * 2);
if (!GamepadCurrentStates[gamepad].Contains(button))
{
GamepadCurrentStates[gamepad].Add(button);
}
}
else if (value >= GamepadDeadZone)
{
Button button = (Button)(3016 + e.caxis.axis * 2);
if (!GamepadCurrentStates[gamepad].Contains(button))
{
GamepadCurrentStates[gamepad].Add(button);
}
}
else
{
//remove both buttons for this axis if it's not in range
if (e.caxis.axis < 4)
{
GamepadCurrentStates[gamepad].Remove((Button)(3015 + e.caxis.axis * 2));
}
GamepadCurrentStates[gamepad].Remove((Button)(3016 + e.caxis.axis * 2));
}
break;
}
}
}
