ViceVehicle::ViceVehicle(SCRIPT_MISSION* pMission, DWORD dwModel, VCPosition_t position, bool bKeepOnDestroy)
{
m_pMission = pMission;
m_bKeepOnDestroy = bKeepOnDestroy;
ViceModel::LoadOne(pMission, dwModel);
$(&create_car, dwModel, position.x, position.y, position.z, &m_dwVehicle);
ZAngle(position.a);
}
// Changes the heading of the missile to head toward the target.
void CHSMissile::ChangeHeading()
{
HS_BOOL8 bChange; // Indicates if any turning has occurred;
if (!m_pData)
{
return;
}
// Calculate X, Y, and Z difference vector
static double tX = 0.0, tY = 0.0, tZ = 0.0;
if(NULL != m_target && HST_SHIP == m_target->GetType())
{
// get value from 0.0 - 1.0 where 1.0 is 100% visible
float cloak_effect =
static_cast<CHSShip* >(m_target)->CloakingEffect() * 100;
// If the random value is less than the cloaking effect,
// the missile still sees the ship and can update its
// coordinates, otherwise, leave them at the previous
// location
if(hsInterface.GetRandom(100) <= (HS_UINT32) cloak_effect)
{
tX = m_target->GetX();
tY = m_target->GetY();
tZ = m_target->GetZ();
}
}
else
{
tX = m_target->GetX();
tY = m_target->GetY();
tZ = m_target->GetZ();
}
HS_INT32 xyang = XYAngle(m_x, m_y, tX, tY);
HS_INT32 zang = ZAngle(m_x, m_y, m_z, tX, tY, tZ);
// Get the turn rate
HS_INT32 iTurnRate = m_turnrate;
bChange = false;
// Check for change in zheading
if (zang != m_zheading)
{
if (zang > m_zheading)
{
if ((zang - m_zheading) > iTurnRate)
m_zheading += iTurnRate;
else
m_zheading = zang;
}
else
{
if ((m_zheading - zang) > iTurnRate)
m_zheading -= iTurnRate;
else
m_zheading = zang;
}
bChange = true;
}
// Now handle any changes in the XY plane.
HS_INT32 iDiff;
if (xyang != m_xyheading)
{
if (abs(m_xyheading - xyang) < 180)
{
if (abs(m_xyheading - xyang) < iTurnRate)
m_xyheading = xyang;
else if (m_xyheading > xyang)
{
m_xyheading -= iTurnRate;
if (m_xyheading < 0)
m_xyheading += 360;
}
else
{
m_xyheading += iTurnRate;
if (m_xyheading > 359)
m_xyheading -= 360;
}
}
else if (((360 - xyang) + m_xyheading) < 180)
{
iDiff = (360 - xyang) + m_xyheading;
if (iDiff < iTurnRate)
{
m_xyheading = xyang;
}
else
{
m_xyheading -= iTurnRate;
if (m_xyheading < 0)
m_xyheading += 360;
}
}
else if (((360 - m_xyheading) + xyang) < 180)
{
iDiff = (360 - m_xyheading) + xyang;
if (iDiff < iTurnRate)
{
m_xyheading = xyang;
}
else
{
m_xyheading += iTurnRate;
if (m_xyheading > 359)
m_xyheading -= 360;
}
}
else // This should never be true, but just in case.
{
m_xyheading += iTurnRate;
if (m_xyheading > 359)
m_xyheading -= 360;
}
bChange = true;
}
// Check to see if we need to recompute trajectory.
if (bChange)
{
zang = m_zheading;
if (zang < 0)
zang += 360;
CHSVector tvec(d2sin_table[m_xyheading] * d2cos_table[zang],
d2cos_table[m_xyheading] * d2cos_table[zang],
d2sin_table[zang]);
m_motion_vector = tvec;
}
}
