CPlanet* CSPCharacter::FindNearestPlanet() const
{
CPlanet* pNearestPlanet = NULL;
CScalableFloat flNearestDistance;
for (size_t i = 0; i < GameServer()->GetMaxEntities(); i++)
{
CPlanet* pPlanet = dynamic_cast<CPlanet*>(CBaseEntity::GetEntity(i));
if (!pPlanet)
continue;
CScalableFloat flDistance = (pPlanet->GetGlobalOrigin() - GetGlobalOrigin()).Length();
flDistance -= pPlanet->GetRadius();
if (pNearestPlanet == NULL)
{
pNearestPlanet = pPlanet;
flNearestDistance = flDistance;
continue;
}
if (flDistance > flNearestDistance)
continue;
pNearestPlanet = pPlanet;
flNearestDistance = flDistance;
}
return pNearestPlanet;
}
void CSPCharacter::Think()
{
BaseClass::Think();
CPlanet* pPlanet = GetNearestPlanet();
if (pPlanet && !HasMoveParent())
{
m_flLastEnteredAtmosphere = GameServer()->GetGameTime();
m_flRollFromSpace = GetGlobalAngles().r;
}
SetMoveParent(pPlanet);
if (pPlanet)
{
// Estimate this planet's mass given things we know about earth. Assume equal densities.
double flEarthVolume = 1097509500000000000000.0; // cubic meters
double flEarthMass = 5974200000000000000000000.0; // kilograms
// 4/3 * pi * r^3 = volume of a sphere
CScalableFloat flPlanetVolume = pPlanet->GetRadius()*pPlanet->GetRadius()*pPlanet->GetRadius()*(M_PI*4/3);
double flPlanetMass = RemapVal(flPlanetVolume, CScalableFloat(), CScalableFloat(flEarthVolume, SCALE_METER), 0, flEarthMass);
double flG = 0.0000000000667384; // Gravitational constant
CScalableVector vecDistance = (pPlanet->GetGlobalOrigin() - GetGlobalOrigin());
CScalableFloat flDistance = vecDistance.Length();
CScalableFloat flGravity = CScalableFloat(flPlanetMass*flG, SCALE_METER)/(flDistance*flDistance);
CScalableVector vecGravity = vecDistance * flGravity / flDistance;
SetGlobalGravity(vecGravity);
}
}
void CStructure::PostSetLocalTransform(const TMatrix& m)
{
BaseClass::PostSetLocalTransform(m);
CPlanet* pPlanet = GameData().GetPlanet();
if (!pPlanet)
return;
if (!pPlanet->GetChunkManager()->HasGroupCenter())
return;
TMatrix mLocalTransform = m;
CBaseEntity* pMoveParent = GetMoveParent();
if (pMoveParent)
{
while (pMoveParent != pPlanet)
{
mLocalTransform = pMoveParent->GetLocalTransform() * mLocalTransform;
pMoveParent = pMoveParent->GetMoveParent();
}
}
else
mLocalTransform = pPlanet->GetGlobalToLocalTransform() * m;
GameData().SetGroupTransform(pPlanet->GetChunkManager()->GetPlanetToGroupCenterTransform() * mLocalTransform.GetMeters());
}
void CStructure::SetPhysicsTransform(const Matrix4x4& m)
{
CPlanet* pPlanet = GameData().GetPlanet();
if (!pPlanet)
{
SetLocalTransform(TMatrix(m));
return;
}
if (!pPlanet->GetChunkManager()->HasGroupCenter())
{
SetLocalTransform(TMatrix(m));
return;
}
GameData().SetGroupTransform(m);
TMatrix mLocalTransform(pPlanet->GetChunkManager()->GetGroupCenterToPlanetTransform() * m);
CBaseEntity* pMoveParent = GetMoveParent();
TAssert(pMoveParent);
if (pMoveParent)
{
while (pMoveParent != pPlanet)
{
mLocalTransform = pMoveParent->GetLocalTransform().InvertedRT() * mLocalTransform;
pMoveParent = pMoveParent->GetMoveParent();
}
}
SetLocalTransform(mLocalTransform);
}
void CTestParticleSet::setupTestParticles( )
{
RemoveAll( );
// Check for invalid ranges.
if( m_xRange.m_y < m_xRange.m_x ||
m_yRange.m_y < m_yRange.m_x ||
m_zRange.m_y < m_zRange.m_x ||
IS_LESS_THAN_OR_EQUAL( m_xRange.m_z, 0 ) ||
IS_LESS_THAN_OR_EQUAL( m_yRange.m_z, 0 ) ||
IS_LESS_THAN_OR_EQUAL( m_zRange.m_z, 0 ) )
return;
for( double i=m_xRange.m_x; i<=m_xRange.m_y; i+=m_xRange.m_z )
{
for( double j=m_yRange.m_x; j<=m_yRange.m_y; j+=m_yRange.m_z )
{
for( double k=m_zRange.m_x; k<=m_zRange.m_y; k+=m_zRange.m_z )
{
// A planet.
CPlanet newPlanet;
newPlanet.setPositionOptimized( CVector3D( i, j, k ) );
newPlanet.setRadius( 0.1 );
newPlanet.setDrawAsPoint( true );
Add( newPlanet );
}
}
}
}
TVector CSPCharacter::GetUpVector() const
{
CPlanet* pNearestPlanet = GetNearestPlanet();
if (pNearestPlanet)
return (GetGlobalOrigin() - pNearestPlanet->GetGlobalOrigin()).Normalized();
return Vector(0, 1, 0);
}
const Matrix4x4 CStructure::GetPhysicsTransform() const
{
CPlanet* pPlanet = GameData().GetPlanet();
if (!pPlanet)
return GetLocalTransform();
if (!pPlanet->GetChunkManager()->HasGroupCenter())
return GetLocalTransform();
return GameData().GetGroupTransform();
}
void CSPCharacter::StandOnNearestPlanet()
{
CPlanet* pPlanet = GetNearestPlanet(FINDPLANET_ANY);
if (!pPlanet)
return;
CScalableVector vecPlanetOrigin = pPlanet->GetGlobalOrigin();
CScalableVector vecCharacterOrigin = GetGlobalOrigin();
CScalableVector vecCharacterDirection = (vecCharacterOrigin - vecPlanetOrigin).Normalized();
SetMoveParent(pPlanet);
TVector vecPoint, vecNormal;
pPlanet->CollideLocal(vecCharacterDirection * (pPlanet->GetRadius()*2.0f), TVector(), vecPoint, vecNormal);
SetLocalOrigin(vecPoint);
}
CPlanet* CSPCharacter::GetNearestPlanet(findplanet_t eFindPlanet) const
{
if (eFindPlanet != FINDPLANET_INATMOSPHERE)
{
if (m_hNearestPlanet != NULL)
return m_hNearestPlanet;
CPlanet* pNearestPlanet = FindNearestPlanet();
if (eFindPlanet == FINDPLANET_ANY)
return pNearestPlanet;
CScalableFloat flDistance = (pNearestPlanet->GetGlobalOrigin() - GetGlobalOrigin()).Length() - pNearestPlanet->GetRadius();
if (eFindPlanet == FINDPLANET_CLOSEORBIT && flDistance > pNearestPlanet->GetCloseOrbit())
return NULL;
else
return pNearestPlanet;
}
return m_hNearestPlanet;
}
void RiseTransitSet(long when, float lat, float lon, float ra, float dec, long* rise, long* transit, long* set)
{
long daybase = when - (when % 86400);
CPlanet* earth = FindPlanet("Earth");
float full_set_angle = -0.83 * deg2rad;
float latrad = lat * deg2rad;
float decrad = dec * deg2rad;
const OrbitData* obs_orbit = earth->GetOrbit();
float mean_anomaly = obs_orbit->MeanAnomaly(when);
float transit_hour_utc = fmod((ra - lon - mean_anomaly),360.0)/15 + 17.1375;
long transit_time = (long)(transit_hour_utc * 3600.0);
float horizon_hour = acosf((sinf(full_set_angle) - sinf(latrad)*sinf(decrad))/(cosf(latrad)*cosf(decrad))) * rad2hour;
long horizon_time = (long)(horizon_hour * 3600);
transit_time += daybase;
*rise = transit_time - horizon_time;
*transit = transit_time;
*set = transit_time + horizon_time;
}
CPlanet* CSPCharacter::GetNearestPlanet(findplanet_t eFindPlanet)
{
if (GameServer()->GetGameTime() > m_flNextPlanetCheck)
{
CPlanet* pNearestPlanet = FindNearestPlanet();
CScalableFloat flDistance = (pNearestPlanet->GetGlobalOrigin() - GetGlobalOrigin()).Length() - pNearestPlanet->GetRadius();
if (flDistance < pNearestPlanet->GetAtmosphereThickness())
m_hNearestPlanet = pNearestPlanet;
else
m_hNearestPlanet = NULL;
m_flNextPlanetCheck = GameServer()->GetGameTime() + 0.3f;
}
if (eFindPlanet != FINDPLANET_INATMOSPHERE)
{
if (m_hNearestPlanet != NULL)
return m_hNearestPlanet;
CPlanet* pNearestPlanet = FindNearestPlanet();
if (eFindPlanet == FINDPLANET_ANY)
return pNearestPlanet;
CScalableFloat flDistance = (pNearestPlanet->GetGlobalOrigin() - GetGlobalOrigin()).Length() - pNearestPlanet->GetRadius();
if (eFindPlanet == FINDPLANET_CLOSEORBIT && flDistance > pNearestPlanet->GetCloseOrbit())
return NULL;
else
return pNearestPlanet;
}
return m_hNearestPlanet;
}
void SunRiseSet(long when, float lat, float lon, long* out_rise, long* out_set, long* out_trans)
{
float ra, dec;
long dummy, rise, set, transit;
CPlanet* earth = FindPlanet("Earth");
SolarRADec(*earth->GetOrbit(), when, &ra, &dec);
RiseTransitSet(when, lat, lon, ra, dec, &rise, &dummy, &set);
SolarRADec(*earth->GetOrbit(), rise, &ra, &dec);
RiseTransitSet(rise, lat, lon, ra, dec, &rise, &dummy, &dummy);
SolarRADec(*earth->GetOrbit(), transit, &ra, &dec);
RiseTransitSet(rise, lat, lon, ra, dec, &dummy, &transit, &dummy);
SolarRADec(*earth->GetOrbit(), set, &ra, &dec);
RiseTransitSet(set, lat, lon, ra, dec, &dummy, &dummy, &set);
*out_rise = rise;
*out_trans = transit;
*out_set = set;
}
void CStar::PostRender() const
{
BaseClass::PostRender();
if (GameServer()->GetRenderer()->IsRenderingTransparent())
return;
CSPCharacter* pCharacter = SPGame()->GetLocalPlayerCharacter();
CPlanet* pNearestPlanet = pCharacter->GetNearestPlanet();
float flRadius = (float)(GetRadius()*2.0f).GetUnits(SPGame()->GetSPRenderer()->GetRenderingScale());
CScalableFloat flDistance;
float flAtmosphere = 0;
if (pNearestPlanet)
{
flDistance = (pNearestPlanet->GetGlobalOrigin() - pCharacter->GetGlobalOrigin()).Length() - pNearestPlanet->GetRadius();
flAtmosphere = (float)RemapValClamped(flDistance, CScalableFloat(1.0f, SCALE_KILOMETER), pNearestPlanet->GetAtmosphereThickness(), 1.0, 0.0);
}
CGameRenderingContext c(GameServer()->GetRenderer(), true);
c.SetDepthMask(false);
c.ResetTransformations();
c.Transform(BaseGetRenderTransform());
// Set material and uniform now so RenderBillboard doesn't overwrite the alpha value.
c.UseMaterial("textures/star-yellow-atmosphere.mat");
c.SetUniform("flAlpha", flAtmosphere);
c.RenderBillboard("textures/star-yellow-atmosphere.mat", flRadius);
c.UseMaterial("textures/star-yellow-space.mat");
c.SetUniform("flAlpha", 1-flAtmosphere);
c.RenderBillboard("textures/star-yellow-space.mat", flRadius);
}
