BOOL C4TransferZones::Set(int32_t iX, int32_t iY, int32_t iWdt, int32_t iHgt, C4Object *pObj)
{
C4TransferZone *pZone;
// Empty zone: clear existing object zones
if (!iWdt || !iHgt) { ClearPointers(pObj); return TRUE; }
// Update existing zone
if (pZone=Find(pObj))
{
pZone->X=iX; pZone->Y=iY;
pZone->Wdt=iWdt; pZone->Hgt=iHgt;
}
// Allocate and add new zone
else
Add(iX,iY,iWdt,iHgt,pObj);
// Success
return TRUE;
}
void C4SoundInstance::Execute() {
// Object deleted?
if (pObj && !pObj->Status) ClearPointers(pObj);
// initial values
int32_t iVol = iVolume * 256 * Config.Sound.SoundVolume / 100,
iPan = C4SoundInstance::iPan;
// bound to an object?
if (pObj) {
int iAudibility = pObj->Audible;
// apply custom falloff distance
if (iFalloffDistance) {
iAudibility = BoundBy<int32_t>(
100 + (iAudibility - 100) * C4AudibilityRadius / iFalloffDistance, 0,
100);
}
iVol = iVol * iAudibility / 100;
iPan += pObj->AudiblePan;
}
// sound off?
if (!iVol) {
// stop, if started
if (isStarted()) {
#ifdef HAVE_LIBSDL_MIXER
Mix_HaltChannel(iChannel);
#endif
iChannel = -1;
}
} else {
// start
if (!isStarted())
if (!CheckStart()) return;
// set volume & panning
#ifdef HAVE_LIBSDL_MIXER
Mix_Volume(iChannel, (iVol * MIX_MAX_VOLUME) / (100 * 256));
// Mix_SetPanning(iChannel, ((100 + iPan) * 256) / 200, ((100 - iPan) * 256)
// / 200);
Mix_SetPanning(iChannel, BoundBy((100 - iPan) * 256 / 100, 0, 255),
BoundBy((100 + iPan) * 256 / 100, 0, 255));
#endif
}
}
