void ParticleSystem :: DrawSystem( void )
{
Vector normal, forward, right, up;
GetViewAngles( normal );
AngleVectors( normal, forward, right, up );
particle* pParticle = m_pActiveParticle;
for( pParticle = m_pActiveParticle; pParticle; pParticle = pParticle->nextpart )
{
DrawParticle( pParticle, right, up );
}
}
//=========================================================
// FInViewCone - returns true is the passed vector is in
// the caller's forward view cone.
//=========================================================
bool CEntity::FInViewCone(Vector *pOrigin, float fov)
{
if (fov <= 0)
fov = GetFov();
Vector forward;
GetViewAngles().AngleVectors(&forward);
Vector vecLOS = (*pOrigin - GetGunPosition()).Normalize();
float flDot = DotProduct(vecLOS, forward);
return (flDot >= cos((fov / 2) * (M_PI / 180)));
}
bool ParticleSystem::ParticleIsVisible( particle* part )
{
vec3_t normal, forward, right, up;
GetViewAngles( normal );
AngleVectors( normal, forward, right, up );
Vector vec = ( part->origin - v_origin );
Vector vecDir = vec.Normalize( );
float distance = vec.Length();
if ( DotProduct ( vecDir, forward ) < 0.0f )
return false;
return true;
}
void CEntity::ChangeAngles(const Vector &idealangles, float speed)
{
#if 0
pev->v_angle = pev->angles = idealangles;
pev->v_angle.x *= -1;
pev->angles.x /= 3;
#else
Vector v_deviation = Vector(-idealangles.x, idealangles.y, idealangles.z) - GetViewAngles();
v_deviation.ClampAngles();
float da_deadly_math = exp(log(speed / 2) * g_pServer->GetMsec() / 50);
// Thanks Tobias Heimann and Johannes Lampel for this one
pev->yaw_speed = (pev->yaw_speed * da_deadly_math + speed * v_deviation.y * (1 - da_deadly_math)) * g_pServer->GetMsec() / 50;
pev->pitch_speed = (pev->pitch_speed * da_deadly_math + speed * v_deviation.x * (1 - da_deadly_math)) * g_pServer->GetMsec() / 50;
// influence of y movement on x axis and vice versa (less influence than x on y since it's
// easier and more natural for the bot to "move its mouse" horizontally than vertically)
pev->pitch_speed += pev->yaw_speed / 4.5;
pev->yaw_speed += pev->pitch_speed / 3;
if (fabs(pev->pitch_speed) >= fabs(v_deviation.x) &&
pev->pitch_speed * v_deviation.x >= 0)
pev->pitch_speed = v_deviation.x;
if (fabs(pev->yaw_speed) >= fabs(v_deviation.y) &&
pev->yaw_speed * v_deviation.y >= 0)
pev->yaw_speed = v_deviation.y;
pev->v_angle.y += pev->yaw_speed;
pev->v_angle.x += pev->pitch_speed;
// set the body angles to point the gun correctly
pev->angles.x = -pev->v_angle.x / 3;
pev->angles.y = pev->v_angle.y;
#endif
pev->v_angle.ClampAngles();
pev->angles.ClampAngles();
}
bool Client::IsInViewCone (const Vector &pos) const
{
engine->BuildGlobalVectors (GetViewAngles ());
return ((pos - GetHeadOrigin ()).Normalize () | g_pGlobals->v_forward) >= cosf (Math::DegreeToRadian ((GetFOV () > 0.0f ? GetFOV () : 90.0f) * 0.5f));
}
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
// CLIENT
//////////////////////////////////////////////////////////////////////////
float Client::GetShootingConeDeviation (const Vector &pos) const
{
engine->BuildGlobalVectors (GetViewAngles ());
return g_pGlobals->v_forward | (pos - GetHeadOrigin ()).Normalize ();
}
