string StarWrapperBase::getInfoString(const Navigator *nav) const {
const Vec3d j2000_pos = getObsJ2000Pos(nav);
double dec_j2000, ra_j2000;
rect_to_sphe(&ra_j2000,&dec_j2000,j2000_pos);
const Vec3d equatorial_pos = nav->j2000_to_earth_equ(j2000_pos);
double dec_equ, ra_equ;
rect_to_sphe(&ra_equ,&dec_equ,equatorial_pos);
stringstream oss;
oss.setf(ios::fixed, ios::floatfield);
oss.precision(2);
oss << "Magnitude: " << get_mag(nav) << " B-V: " << getBV() << endl;
oss << "J2000" << " " << "RA/DE: " << Utility::printAngleHMS(ra_j2000,true)
<< " / " << Utility::printAngleDMS(dec_j2000,true) << endl;
oss << "Equ of date" << " " << "RA/DE: " << Utility::printAngleHMS(ra_equ)
<< " / " << Utility::printAngleDMS(dec_equ) << endl;
// calculate alt az
double az,alt;
rect_to_sphe(&az,&alt,nav->earth_equ_to_local(equatorial_pos));
az = 3*M_PI - az; // N is zero, E is 90 degrees
if(az > M_PI*2) az -= M_PI*2;
oss << "Alt/Az: " << Utility::printAngleDMS(alt) << " / " << Utility::printAngleDMS(az) << endl;
return oss.str();
}
/**
* CCoin::gravitate
* @date Modified May 15, 2006
*/
bool CCoin::gravitate(void)
{
// if it isn't active it needs to try and gravitate to the player
if (!isActive())
{
if (m_fGravDist < FLT_MAX)
{
if (m_poPlayer == NULL)
{
// kill the coin if it's trying to go to a player that doesn't exist
CObjectManager::getInstance().removeObject((CObject*)this);
return false;
}
// store the elapsed time
float fElapsedTime;
// update at 60fps
if(!m_oTimer.tick(&fElapsedTime))
return false;
D3DXVECTOR3 vPlayerPos = ((CPlayer*)(m_poPlayer))->getPickupSphere().centerPt;
setPosition(D3DXVECTOR3(
vPlayerPos.x + (m_fGravDist * cos(m_fAngle)),
vPlayerPos.y,
vPlayerPos.z + (m_fGravDist * sin(m_fAngle))));
(m_fAngle < 0.0f) ? m_fAngle -= 5.0f * fElapsedTime : m_fAngle += 5.0f * fElapsedTime;
setBV(getPosition(), getBV().fRadius);
m_fGravDist -= 50.0f * fElapsedTime;
return false;
}
else
{
// all this see if the closest player is close enough for his gravity to effect this coin
float fDist = FLT_MAX, fShortest = FLT_MAX;
CObjectManager::ObjectList loPlayers;
CObjectManager::getInstance().getObjects(OBJ_PLAYER, &loPlayers);
CObjectManager::ObjectList::iterator oPlayerIter = loPlayers.begin();
while (oPlayerIter != loPlayers.end())
{
fDist = computeDistanceSquared(((CActor*)(*oPlayerIter))->getPosition(), getPosition());
if (fDist > MAX_PLAYER_GRAV_DIST)
{
oPlayerIter++;
continue;
}
if (fDist < fShortest)
{
fShortest = fDist;
m_poPlayer = ((CActor*)(*oPlayerIter));
}
oPlayerIter++;
}
if (m_poPlayer == NULL)
return false;
// set the values for circling
m_fGravDist = fastSqrtf(fShortest);
// get the initial angle
D3DXVECTOR3 vPlayerToCoin;
D3DXVec3Subtract(&vPlayerToCoin, &getPosition(), &m_poPlayer->getPosition());
D3DXVec3Normalize(NULL, &vPlayerToCoin, &vPlayerToCoin);
// calculate the initial angle
m_fAngle = D3DXVec3Dot(&vPlayerToCoin, &D3DXVECTOR3(1.0f,0.0f,0.0f));
m_fAngle = acos(m_fAngle);
// positive or negative
if (D3DXVec3Dot(&vPlayerToCoin, &D3DXVECTOR3(0.0f,0.0f,1.0f)) < 0.0f)
m_fAngle *= -1.0f;
}
return false;
}
return true;
}
QString StarWrapperBase::getInfoString(const StelCore *core, const InfoStringGroup& flags) const
{
QString str;
QTextStream oss(&str);
if (flags&Magnitude)
{
oss << q_("Magnitude: <b>%1</b> (B-V: %2)").arg(QString::number(getVMagnitude(core, false), 'f', 2), QString::number(getBV(), 'f', 2)) << "<br>";
if (core->getSkyDrawer()->getFlagHasAtmosphere())
{
oss << q_("Apparent Magnitude: <b>%1</b> (by extinction)").arg(QString::number(getVMagnitude(core, true), 'f', 2)) << "<br>";
}
}
oss << getPositionInfoString(core, flags);
StelObject::postProcessInfoString(str, flags);
return str;
}
