void HLCALLBACK buttonCB(HLenum event, HLuint object, HLenum thread,
HLcache *cache, void *userdata)
{
if (event == HL_EVENT_1BUTTONDOWN)
{
HLuint spring = *((HLuint *) userdata);
HDdouble anchor[3];
hlCacheGetDoublev(cache, HL_PROXY_POSITION, anchor);
hlEffectd(HL_EFFECT_PROPERTY_GAIN, 0.8);
hlEffectd(HL_EFFECT_PROPERTY_MAGNITUDE, 1.0);
hlEffectdv(HL_EFFECT_PROPERTY_POSITION, anchor);
hlStartEffect(HL_EFFECT_SPRING, spring);
}
else if (event == HL_EVENT_1BUTTONUP)
{
HLuint spring = *((HLuint *) userdata);
hlStopEffect(spring);
}
else if (event == HL_EVENT_2BUTTONDOWN)
{
static const HDdouble direction[3] = { 0, 0, 1 };
static const HDdouble duration = 100; /* ms */
/* Trigger an impulse by commanding a force with a
direction and magnitude for a small duration. */
hlEffectd(HL_EFFECT_PROPERTY_DURATION, duration);
hlEffectd(HL_EFFECT_PROPERTY_MAGNITUDE, 0.8);
hlEffectdv(HL_EFFECT_PROPERTY_DIRECTION, direction);
hlTriggerEffect(HL_EFFECT_CONSTANT);
}
}
//*******************************************************************************
void HapticEffect::triggerEffect( double duration )
{
// Effekt für die Dauer duration (msec) anstoßen
renderProperties();
hlEffectd(HL_EFFECT_PROPERTY_DURATION, duration);
hlTriggerEffect(m_EffectType);
}