void PollForJoystickInput(int cpad)
{
int joyid = conf->get_joyid(cpad);
if (!JoystickIdWithinBounds(joyid)) return;
SDL_JoystickUpdate();
for (int i = 0; i < MAX_KEYS; i++)
{
JoystickInfo* pjoy = s_vjoysticks[joyid];
switch (type_of_joykey(cpad, i))
{
case PAD_JOYBUTTONS:
{
int value = SDL_JoystickGetButton((pjoy)->GetJoy(), key_to_button(cpad, i));
if (value)
key_status->press(cpad, i);
else
key_status->release(cpad, i);
break;
}
case PAD_HAT:
{
int value = SDL_JoystickGetHat((pjoy)->GetJoy(), key_to_axis(cpad, i));
// key_to_hat_dir and SDL_JoystickGetHat are a 4 bits bitmap, one for each directions. Only 1 bit can be high for
// key_to_hat_dir. SDL_JoystickGetHat handles diagonal too (2 bits) so you must check the intersection
// '&' not only equality '=='. -- Gregory
if (key_to_hat_dir(cpad, i) & value)
key_status->press(cpad, i);
else
key_status->release(cpad, i);
break;
}
case PAD_AXIS:
{
int value = pjoy->GetAxisFromKey(cpad, i);
bool sign = key_to_axis_sign(cpad, i);
bool full_axis = key_to_axis_type(cpad, i);
if (IsAnalogKey(i)) {
if (abs(value) > pjoy->GetDeadzone())
key_status->press(cpad, i, value);
else
key_status->release(cpad, i);
} else {
if (full_axis) {
value += 0x8000;
if (value > pjoy->GetDeadzone())
key_status->press(cpad, i, min(value/256 , 0xFF));
else
key_status->release(cpad, i);
} else {
if (sign && (-value > pjoy->GetDeadzone()))
key_status->press(cpad, i, min(-value /128, 0xFF));
else if (!sign && (value > pjoy->GetDeadzone()))
key_status->press(cpad, i, min(value /128, 0xFF));
else
key_status->release(cpad, i);
}
}
}
default: break;
}
}
}
EXPORT_C_(void) PADupdate(int pad)
{
// Poll keyboard.
PollForKeyboardInput(pad);
// joystick info
SDL_JoystickUpdate();
for (int i = 0; i < MAX_KEYS; i++)
{
int cpad = PadEnum[pad][0];
if (JoystickIdWithinBounds(key_to_joystick_id(cpad, i)))
{
JoystickInfo* pjoy = s_vjoysticks[key_to_joystick_id(cpad, i)];
int pad = (pjoy)->GetPAD();
switch (type_of_key(cpad, i))
{
case PAD_JOYBUTTONS:
{
int value = SDL_JoystickGetButton((pjoy)->GetJoy(), key_to_button(cpad, i));
if (value)
clear_bit(status[pad], i); // released
else
set_bit(status[pad], i); // pressed
break;
}
case PAD_HAT:
{
int value = SDL_JoystickGetHat((pjoy)->GetJoy(), key_to_axis(cpad, i));
if (key_to_hat_dir(cpad, i) == value)
{
clear_bit(status[pad], i);
//PAD_LOG("Registered %s\n", HatName(value), i);
//PAD_LOG("%s\n", KeyName(cpad, i).c_str());
}
else
{
set_bit(status[pad], i);
}
break;
}
case PAD_POV:
{
int value = pjoy->GetAxisFromKey(cpad, i);
PAD_LOG("%s: %d (%d)\n", KeyName(cpad, i).c_str(), value, key_to_pov_sign(cpad, i));
if (key_to_pov_sign(cpad, i) && (value < -2048))
{
//PAD_LOG("%s Released+.\n", KeyName(cpad, i).c_str());
clear_bit(status[pad], i);
}
else if (!key_to_pov_sign(cpad, i) && (value > 2048))
{
//PAD_LOG("%s Released-\n", KeyName(cpad, i).c_str());
clear_bit(status[pad], i);
}
else
{
//PAD_LOG("%s Pressed.\n", KeyName(cpad, i).c_str());
set_bit(status[pad], i);
}
break;
}
case PAD_JOYSTICK:
{
int value = pjoy->GetAxisFromKey(cpad, i);
switch (i)
{
case PAD_LX:
case PAD_LY:
case PAD_RX:
case PAD_RY:
if (abs(value) > (pjoy)->GetDeadzone(value))
Analog::ConfigurePad(pad, i, value);
else
Analog::ResetPad(pad, i);
break;
}
break;
}
default: break;
}
}
}
}