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improved driving controller responsiveness to digital input

This commit is contained in:
Thomas Jentzsch 2023-01-06 00:43:38 +01:00
parent cb4f3b4965
commit 265a090cc1
2 changed files with 15 additions and 2 deletions
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11
src/emucore/Driving.cxx
View File

@ -115,21 +115,28 @@ void Driving::updateControllerAxes()
// Digital events (from keyboard or joystick hats & buttons)
const int d_axis = myEvent.get(myXAxisValue);
if(myEvent.get(myCCWEvent) != 0 || d_axis < -16384)
if(myEvent.get(myCCWEvent) != 0 && myLastCCWEvent == 0)
myCounterHires = ((myGrayIndex + 4) * 256.0F) / SENSITIVITY - 1; // set to end of previous counter interval
else if(myEvent.get(myCWEvent) != 0 && myLastCWEvent == 0)
myCounterHires = ((myGrayIndex + 1) * 256.0F) / SENSITIVITY; // set to begin of next counter interval
else if(myEvent.get(myCCWEvent) != 0 || d_axis < -16384)
myCounterHires -= 64;
else if(myEvent.get(myCWEvent) != 0 || d_axis > 16384)
myCounterHires += 64;
myLastCCWEvent = myEvent.get(myCCWEvent);
myLastCWEvent = myEvent.get(myCWEvent);
// Analog events (from joystick axes)
const int a_axis = myEvent.get(myAnalogEvent);
if( abs(a_axis) > Controller::analogDeadZone())
if(abs(a_axis) > Controller::analogDeadZone())
{
/* a_axis is in -2^15 to +2^15-1; adding 1 when non-negative and
dividing by 2^9 gives us -2^6 to +2^6, which gives us the same
range as digital inputs.
*/
myCounterHires += (a_axis/512) + (a_axis >= 0);
cerr << "! ";
}
// Only consider the lower-most bits (corresponding to pins 1 & 2)

6
src/emucore/Driving.hxx
View File

@ -97,6 +97,12 @@ class Driving : public Controller
// Higher resolution counter for analog (non-Stelladaptor) inputs
uInt32 myCounterHires{0};
// Previous digital CCW event
Int32 myLastCCWEvent{0};
// Previous digital CW event
Int32 myLastCWEvent{0};
// Index into the gray code table
uInt32 myGrayIndex{0};