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static const uint16_t buttons[] = {
BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2,
BTN_TR2, BTN_SELECT, BTN_START, BTN_MODE, BTN_THUMBL, BTN_THUMBR,
BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT
};
static OFString *
static OFGameControllerButton
buttonToName(uint16_t button, uint16_t vendorID, uint16_t productID)
{
if (vendorID == vendorIDMicrosoft &&
productID == productIDXbox360Controller) {
switch (button) {
case BTN_C:
case BTN_Z:
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_name = [[OFString alloc] initWithCString: name
encoding: encoding];
_buttons = [[OFMutableSet alloc] init];
for (size_t i = 0; i < sizeof(buttons) / sizeof(*buttons);
i++) {
OFString *buttonName =
OFGameControllerButton buttonName =
buttonToName(buttons[i], _vendorID, _productID);
if (buttonName != nil)
[_buttons addObject: buttonName];
}
_pressedButtons = [[OFMutableSet alloc] init];
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OFGameControllerButtonDPadRight];
[_buttons addObject:
OFGameControllerButtonDPadUp];
[_buttons addObject:
OFGameControllerButtonDPadDown];
}
if (OFBitSetIsSet(absBits, ABS_Z))
if (OFBitSetIsSet(absBits, ABS_Z)) {
struct input_absinfo info;
_hasZLPressure = true;
if (ioctl(_fd, EVIOCGABS(ABS_Z), &info) == -1)
@throw [OFInitializationFailedException
exception];
_ZLMinPressure = info.minimum;
_ZLMaxPressure = info.maximum;
[_buttons addObject: OFGameControllerButtonZL];
}
if (OFBitSetIsSet(absBits, ABS_RZ))
if (OFBitSetIsSet(absBits, ABS_RZ)) {
struct input_absinfo info;
_hasZRPressure = true;
if (ioctl(_fd, EVIOCGABS(ABS_RZ), &info) == -1)
@throw [OFInitializationFailedException
exception];
_ZRMinPressure = info.minimum;
_ZRMaxPressure = info.maximum;
[_buttons addObject: OFGameControllerButtonZR];
}
}
[_buttons makeImmutable];
} @catch (id e) {
[self release];
@throw e;
}
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}
- (void)of_processEvents
{
struct input_event event;
for (;;) {
OFString *name;
OFGameControllerButton name;
errno = 0;
if (read(_fd, &event, sizeof(event)) < (int)sizeof(event)) {
if (errno == EWOULDBLOCK)
return;
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[_pressedButtons removeObject:
OFGameControllerButtonDPadUp];
[_pressedButtons removeObject:
OFGameControllerButtonDPadDown];
}
break;
case ABS_Z:
if (event.value > 0)
_ZLPressure = scale(event.value,
_ZLMinPressure, _ZLMaxPressure);
if (_ZLPressure > 0)
[_pressedButtons addObject:
OFGameControllerButtonZL];
else
[_pressedButtons removeObject:
OFGameControllerButtonZL];
break;
case ABS_RZ:
if (event.value > 0)
_ZRPressure = scale(event.value,
_ZRMinPressure, _ZRMaxPressure);
if (_ZRPressure > 0)
[_pressedButtons addObject:
OFGameControllerButtonZR];
else
[_pressedButtons removeObject:
OFGameControllerButtonZR];
break;
}
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}
- (OFPoint)rightAnalogStickPosition
{
[self of_processEvents];
return _rightAnalogStickPosition;
}
- (float)pressureForButton: (OFGameControllerButton)button
{
if ([button isEqual: OFGameControllerButtonZL] && _hasZLPressure) {
[self of_processEvents];
return _ZLPressure;
}
if ([button isEqual: OFGameControllerButtonZR] && _hasZRPressure) {
[self of_processEvents];
return _ZRPressure;
}
return ([self.pressedButtons containsObject: button] ? 1 : 0);
}
- (OFString *)description
{
return [OFString stringWithFormat: @"<%@: %@>", self.class, self.name];
}
@end
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