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Fixed mapping controllers that have axes that start at -32768 and then snap to 0 at the first input report

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This commit is contained in:
Sam Lantinga
2019-11-28 11:44:15 -08:00
parent a3a8fcef77
commit 8aaf945b2f
3 changed files with 25 additions and 24 deletions
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14
test/controllermap.c
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@@ -413,13 +413,6 @@ WatchJoystick(SDL_Joystick * joystick)
s_nNumAxes = SDL_JoystickNumAxes(joystick);
s_arrAxisState = (AxisState *)SDL_calloc(s_nNumAxes, sizeof(*s_arrAxisState));
for (iIndex = 0; iIndex < s_nNumAxes; ++iIndex) {
AxisState *pAxisState = &s_arrAxisState[iIndex];
Sint16 nInitialValue;
pAxisState->m_bMoving = SDL_JoystickGetAxisInitialState(joystick, iIndex, &nInitialValue);
pAxisState->m_nStartingValue = nInitialValue;
pAxisState->m_nFarthestValue = nInitialValue;
}
/* Loop, getting joystick events! */
while (!done && !s_bBindingComplete) {
@@ -472,9 +465,10 @@ WatchJoystick(SDL_Joystick * joystick)
int nValue = event.jaxis.value;
int nCurrentDistance, nFarthestDistance;
if (!pAxisState->m_bMoving) {
pAxisState->m_bMoving = SDL_TRUE;
pAxisState->m_nStartingValue = nValue;
pAxisState->m_nFarthestValue = nValue;
Sint16 nInitialValue;
pAxisState->m_bMoving = SDL_JoystickGetAxisInitialState(joystick, event.jaxis.axis, &nInitialValue);
pAxisState->m_nStartingValue = nInitialValue;
pAxisState->m_nFarthestValue = nInitialValue;
}
nCurrentDistance = SDL_abs(nValue - pAxisState->m_nStartingValue);
nFarthestDistance = SDL_abs(pAxisState->m_nFarthestValue - pAxisState->m_nStartingValue);