/// <summary>Maps the sliders of the joystick</summary>
/// <param name="joystick">Joystick for which sliders are mapped</param>
private void mapSliders(Joystick joystick)
{
IList<DeviceObjectInstance> sliders = joystick.GetObjects(
ObjectDeviceType.AbsoluteAxis
);
var unmappedReaders = new Queue<ISliderReader>();
for (int index = 0; index < sliders.Count; ++index) {
if (sliders[index].ObjectTypeGuid == ObjectGuid.Slider) {
ExtendedSliders slider = identifySlider(
sliders[index].Aspect, sliders[index].ObjectTypeGuid
);
// If this slider could not be identified but were still missing one
// of the two standard sliders, remember it so we can use it in case
// no exact matches are found for sliders 1 and 2.
if (slider == 0) {
if (unmappedReaders.Count < 2) {
unmappedReaders.Enqueue(createSliderReader(joystick, slider, sliders[index]));
}
} else { // Slider was identified, assign it to the next free slot
if ((this.availableSliders & slider) != 0) {
++slider;
if ((this.availableSliders & slider) != 0) {
slider = 0;
}
}
}
// If we identified this slider (exactly or by fallback), build a reader
// for it and store it in the appropriate slot.
if (slider != 0) {
this.availableSliders |= slider;
this.sliderReaders[indexFromSlider(slider)] = createSliderReader(
joystick, slider, sliders[index]
);
}
} // if
} // for
// If sliders 1 and/or 2 are still not provided, use the unidentified
// sliders we remembered earlier as a fallback solution. These could very
// well be null, too, in which case the sliders simply aren't there.
if ((this.sliderReaders[0] == null) && (unmappedReaders.Count > 0)) {
this.availableSliders |= ExtendedSliders.Slider1;
this.sliderReaders[0] = unmappedReaders.Dequeue();
}
if ((this.sliderReaders[1] == null) && (unmappedReaders.Count > 0)) {
this.availableSliders |= ExtendedSliders.Slider2;
this.sliderReaders[1] = unmappedReaders.Dequeue();
}
}
/// <summary>Maps the axes of the joystick</summary>
/// <param name="joystick">Joystick for which axes are mapped</param>
private void mapAxes(Joystick joystick)
{
IList<DeviceObjectInstance> axes = joystick.GetObjects(
ObjectDeviceType.AbsoluteAxis
);
var unmappedReaders = new Queue<IAxisReader>();
for (int index = 0; index < axes.Count; ++index) {
if (axes[index].ObjectTypeGuid != ObjectGuid.Slider) {
ExtendedAxes axis = identifyAxis(
axes[index].Aspect, axes[index].ObjectTypeGuid
);
// If this axis could not be identified but we're still missing one of
// the standard axes (X, Y, Rx, Ry), remember it so we can later map it
// to the next unassigned standard axes in case some are left unassigned.
if (axis == 0) {
if (unmappedReaders.Count < 4) {
unmappedReaders.Enqueue(createAxisReader(joystick, axis, axes[index]));
}
} else { // Axis identified, build reader and store it
this.availableAxes |= axis;
this.axisReaders[indexFromAxis(axis)] = createAxisReader(
joystick, axis, axes[index]
);
}
} // if
} // for
// If the four standard axes are still not completely provided, use
// the unidentified axis we remembered earlier as a fallback solution.
if ((this.axisReaders[0] == null) && (unmappedReaders.Count > 0)) {
this.availableAxes |= ExtendedAxes.X;
this.axisReaders[0] = unmappedReaders.Dequeue();
}
if ((this.axisReaders[1] == null) && (unmappedReaders.Count > 0)) {
this.availableAxes |= ExtendedAxes.Y;
this.axisReaders[1] = unmappedReaders.Dequeue();
}
if ((this.axisReaders[12] == null) && (unmappedReaders.Count > 0)) {
this.availableAxes |= ExtendedAxes.RotationX;
this.axisReaders[12] = unmappedReaders.Dequeue();
}
if ((this.axisReaders[13] == null) && (unmappedReaders.Count > 0)) {
this.availableAxes |= ExtendedAxes.RotationY;
this.axisReaders[13] = unmappedReaders.Dequeue();
}
}
