/// <summary>Converts the provided joystick state into a game pad state</summary>
/// <param name="joystickState">Joystick state that will be converted</param>
/// <returns>A game pad state matching the provided joystick state</returns>
public GamePadState Convert(ref JoystickState joystickState) {
this.convertDelegate(this.gamePadState, ref joystickState);
return new GamePadState(
new GamePadThumbSticks(
this.gamePadState.LeftThumbStick,
this.gamePadState.RightThumbStick
),
new GamePadTriggers(
this.gamePadState.LeftTrigger,
this.gamePadState.RightTrigger
),
new XnaGamePadButtons(
this.gamePadState.Buttons
),
new GamePadDPad(
(this.gamePadState.Buttons & Buttons.DPadUp) != 0 ?
ButtonState.Pressed : ButtonState.Released,
(this.gamePadState.Buttons & Buttons.DPadDown) != 0 ?
ButtonState.Pressed : ButtonState.Released,
(this.gamePadState.Buttons & Buttons.DPadLeft) != 0 ?
ButtonState.Pressed : ButtonState.Released,
(this.gamePadState.Buttons & Buttons.DPadRight) != 0 ?
ButtonState.Pressed : ButtonState.Released
)
);
}
protected override int Read(ref JoystickState state)
{
return state.AccelerationY;
}
protected override int Read(ref JoystickState state)
{
return state.Z;
}
protected override int Read(ref JoystickState state)
{
return state.VelocityY;
}
/// <summary>Reads the raw value from the joystick state</summary> /// <param name="state">Joystick state the value is read from</param> /// <returns>The raw value of the axis in the joystick state</returns> protected abstract int Read(ref JoystickState state);
/// <summary>Retrieves the current value of the axis</summary>
/// <param name="state">Joystick state the axis is taken from</param>
/// <returns>The value of the axis in the joystick state</returns>
public float GetValue(ref JoystickState state)
{
int raw = Read(ref state);
if (raw < this.center) {
return (float)(this.center - raw) / this.min;
} else {
return (float)(raw - this.center) / this.max;
}
}
protected override int Read(ref JoystickState state)
{
return state.AngularVelocityZ;
}
/// <summary>Converts a joystick state into an XNA game pad state</summary>
/// <param name="joystickState">Joystick state that will be converted</param>
/// <returns>The equivalent XNA game pad state</returns>
internal GamePadState Convert(ref JoystickState joystickState)
{
// Read the current states of both thumb sticks
Vector2 leftThumbstick, rightThumbstick;
{
if (this.axisReaders[0] != null) {
leftThumbstick.X = this.axisReaders[0].GetValue(ref joystickState);
} else {
leftThumbstick.X = 0.0f;
}
if (this.axisReaders[1] != null) {
leftThumbstick.Y = -this.axisReaders[1].GetValue(ref joystickState);
} else {
leftThumbstick.Y = 0.0f;
}
if (this.axisReaders[12] != null) {
rightThumbstick.X = this.axisReaders[12].GetValue(ref joystickState);
} else {
rightThumbstick.X = 0.0f;
}
if (this.axisReaders[13] != null) {
rightThumbstick.Y = -this.axisReaders[13].GetValue(ref joystickState);
} else {
rightThumbstick.Y = 0.0f;
}
}
// Read the current states of the triggers
float leftTrigger, rightTrigger;
{
if (this.sliderReaders[0] != null) {
leftTrigger = this.sliderReaders[0].GetValue(ref joystickState);
} else {
leftTrigger = 0.0f;
}
if (this.sliderReaders[1] != null) {
rightTrigger = this.sliderReaders[1].GetValue(ref joystickState);
} else {
rightTrigger = 0.0f;
}
}
// Convert the button states
Buttons buttons = 0;
{
Buttons[] buttonOrder = ExtendedGamePadState.ButtonOrder;
bool[] buttonPressed = joystickState.GetButtons();
int count = Math.Min(buttonOrder.Length, this.buttonCount);
for (int index = 0; index < count; ++index) {
if (buttonPressed[index]) {
buttons |= buttonOrder[index];
}
}
}
// Convert the first PoV controller into a directional pad
GamePadDPad dpad;
{
if (this.povCount > 0) {
int[] povs = joystickState.GetPointOfViewControllers();
dpad = ExtendedGamePadState.DpadFromPov(povs[0]);
} else {
dpad = new GamePadDPad();
}
}
// All informations gathered, construct the game pad state
return new GamePadState(
new GamePadThumbSticks(leftThumbstick, rightThumbstick),
new GamePadTriggers(leftTrigger, rightTrigger),
new XnaGamePadButtons(buttons),
dpad
);
}
public float AxisPressed(string axis, JoystickState state)
{
var type = Read(axis);
return(type.index != -1 ? state.Axes[type.index] : 0f);
}
/// <summary>Generates events for the changes between two states</summary>
/// <param name="previous">Previous state for the comparison</param>
/// <param name="current">Current state for the comparison</param>
private void generateEvents(JoystickState previous, JoystickState current)
{
bool haveExtendedEventSubscribers = HaveExtendedEventSubscribers;
if (!HaveEventSubscribers && !haveExtendedEventSubscribers) {
return;
}
bool[] previousButtons = previous.GetButtons();
bool[] currentButtons = current.GetButtons();
if (haveExtendedEventSubscribers) {
generateAllEvents(previousButtons, currentButtons);
} else {
generateStandardEventsOnly(previousButtons, currentButtons);
}
}
/// <summary>Converts all digital buttons and the controller's PoV hat</summary>
/// <param name="gamePadState">Game pad state that will receive the results</param>
/// <param name="joystickState">Joystick state the values are taken from</param>
private void convertButtonsAndPov(
FlatGamePadState gamePadState, ref JoystickState joystickState
) {
Buttons pressedButtons = 0;
// Try to match up the joystick's buttons with those that would be on
// an XBox 360 controller.
bool[] buttons = joystickState.GetButtons();
for (int index = 0; index < this.buttonCount; ++index) {
if (buttons[index]) {
pressedButtons |= buttonOrder[index];
}
}
// If this controller has a Point-of-View hat, we interpret the hat as
// 4 additional buttons. If not, the buttonCount property is limited to
// 14, allowing an additional 4 normal buttons on the controller to act
// as if they were a PoV hat.
if (this.hasPovHat) {
int pov = joystickState.GetPointOfViewControllers()[0];
// PoV hats report either -1 or 65535 when they're centered and their
// position in degrees times 100 if they're not centered.
if ((ushort)(pov) != 0xFFFF) {
bool right = ((pov > 0) && (pov < 18000));
bool down = ((pov > 9000) && (pov < 27000));
bool left = ((pov > 18000) && (pov < 36000));
bool up = ((pov > 27000) || (pov < 9000));
if (right) { pressedButtons |= Buttons.DPadRight; }
if (down) { pressedButtons |= Buttons.DPadDown; }
if (left) { pressedButtons |= Buttons.DPadLeft; }
if (up) { pressedButtons |= Buttons.DPadUp; }
}
}
this.gamePadState.Buttons = pressedButtons;
}
/// <summary>
/// Ensures that another slot if available in the joystick state queue
/// </summary>
private void ensureSlotAvailable()
{
this.states.EnsureSlotAvailable();
JoystickState[] items = this.states.Items;
int tailIndex = this.states.TailIndex;
if (items[tailIndex] == null) {
items[tailIndex] = new JoystickState();
}
}
protected override int Read(ref JoystickState state)
{
return state.GetForceSliders()[base.Index];
}
protected override int Read(ref JoystickState state)
{
return state.GetAccelerationSliders()[base.Index];
}
/// <summary>Reads the raw value from the joystick state</summary>
/// <param name="state">Joystick state the value is read from</param>
/// <returns>The raw value of the axis in the joystick state</returns>
protected virtual int Read(ref JoystickState state)
{
return state.GetSliders()[this.Index];
}
/// <summary>Retrieves the current value of the axis</summary>
/// <param name="state">Joystick state the axis is taken from</param>
/// <returns>The value of the axis in the joystick state</returns>
public float GetValue(ref JoystickState state)
{
int raw = Read(ref state);
return (float)(raw - min) / this.range;
}
