void CBirdsFlock::SetEnabled( bool bEnabled )
{
if (!m_bc.bSpawnFromPoint)
CFlock::SetEnabled(bEnabled);
else
{
if (m_bEnabled != bEnabled)
{
SetAttractOutput(false);
m_bEnabled = bEnabled;
for (Boids::iterator it = m_boids.begin(); it != m_boids.end(); ++it)
{
CBoidBird *pBoid = (CBoidBird *)*it;
float radius = 0.5; // Spawn not far from origin
float z = /*gEnv->p3DEngine->GetTerrainElevation(m_origin.x,m_origin.y) + */7.f + Boid::Frand()*2.f; // z = terrain height + [5-9]
pBoid->m_pos = m_origin + Vec3(radius*Boid::Frand(),radius*Boid::Frand(), radius*Boid::Frand());
z = .25f*Boid::Frand() + .25f; // z-heading = 0.0 - 0.5
pBoid->m_heading = ( Vec3(Boid::Frand(),Boid::Frand(),z) ).GetNormalized();
pBoid->m_scale = m_bc.boidScale + Boid::Frand()*m_bc.boidRandomScale;
pBoid->m_speed = m_bc.MinSpeed + (Boid::Frand()+1)/2.0f*(m_bc.MaxSpeed - m_bc.MinSpeed);
pBoid->m_dead = 0;
pBoid->m_currentAccel(0,0,0);
pBoid->SetSpawnFromPt(true);
pBoid->m_fNoCenterAttract = m_bc.factorAttractToOrigin;
pBoid->m_fNoKeepHeight = m_bc.factorKeepHeight;
pBoid->SetAttracted(false);
}
if (!bEnabled && m_bEntityCreated)
DeleteEntities(false);
}
}
}
int CBirdsFlock::GetNumAliveBirds()
{
int numAliveBoids = 0;
for (Boids::iterator it = m_boids.begin(),itEnd = m_boids.end(); it != itEnd; ++it)
{
CBoidBird* pBoid = static_cast<CBoidBird*>(*it);
if(pBoid && !pBoid->IsDead())
++numAliveBoids;
}
return numAliveBoids;
}
void CBirdsFlock::Update(CCamera *pCamera)
{
UpdateLandingPoints();
m_isPlayerNearOrigin = GetEntity()!=NULL && IsPlayerInProximity(GetEntity()->GetPos());
CFlock::Update(pCamera);
float dt = gEnv->pTimer->GetFrameTime();
// set the ai object in the middle of the boids
UpdateAvgBoidPos(dt);
if(m_status == Bird::FLYING && !m_bc.noLanding &&
(gEnv->pTimer->GetFrameStartTime()- m_flightStartTime).GetSeconds() > m_flightDuration)
{
if(GetEntity() && !m_isPlayerNearOrigin)
Land();
}
if(m_status == Bird::LANDING)
{
float timePassed = (gEnv->pTimer->GetFrameStartTime()- m_flightStartTime).GetSeconds();
if(timePassed < START_LANDING_TIME+0.5f)
{
int n = m_boids.size();
int numBoidsLandingNow = int(float(n*timePassed)/START_LANDING_TIME);
if(numBoidsLandingNow >n)
numBoidsLandingNow = n;
for(int i = 0; i<numBoidsLandingNow ; ++i)
{
CBoidBird *bird = static_cast<CBoidBird *>(m_boids[i]);
if(bird && !bird->IsDead() && !bird->IsLanding())
bird->Land();
}
}
}
if(m_status == Bird::LANDING || m_status == Bird::ON_GROUND)
{
if(IsPlayerInProximity(GetAvgBoidPos()))
TakeOff();
}
}
void CBirdsFlock::TakeOff()
{
for (Boids::iterator it = m_boids.begin(),itEnd = m_boids.end(); it != itEnd; ++it)
{
CBoidBird* pBoid = static_cast<CBoidBird*>(*it);
if(pBoid && !pBoid->IsDead())
pBoid->TakeOff(m_bc);
}
m_flightDuration = GetFlightDuration();
m_flightStartTime = gEnv->pTimer->GetFrameStartTime();
m_status = Bird::FLYING;
m_birdsOnGround = 0;
}
void CBirdsFlock::CreateBoids(SBoidsCreateContext &ctx)
{
CFlock::CreateBoids(ctx);
m_boidDefaultAnimName = m_bc.GetAnimationName(Bird::ANIM_FLY);
m_bc.bAutoTakeOff = false;
for(uint32 i = 0; i < m_RequestedBoidsCount; i++)
{
CBoidObject *boid = new CBoidBird(m_bc);
if(m_bc.bSpawnFromPoint)
{
CBoidBird *pBoid = (CBoidBird *)boid;
float radius = 0.5; // Spawn not far from origin
float z = /*gEnv->p3DEngine->GetTerrainElevation(m_origin.x,m_origin.y)*/ + 7.f + Boid::Frand()*2.f; // z = terrain height + [5-9]
pBoid->m_pos = m_origin + Vec3(radius*Boid::Frand(),radius*Boid::Frand(), radius*Boid::Frand());
z = .25f*Boid::Frand() + .25f; // z-heading = 0.0 - 0.5
pBoid->m_heading = (Vec3(Boid::Frand(),Boid::Frand(),z)).GetNormalized();
pBoid->m_scale = m_bc.boidScale + Boid::Frand()*m_bc.boidRandomScale;
boid->m_speed = m_bc.MinSpeed + (Boid::Frand()+1)/2.0f*(m_bc.MaxSpeed - m_bc.MinSpeed);
pBoid->m_dead = 0;
pBoid->m_currentAccel(0,0,0);
pBoid->SetSpawnFromPt(true);
pBoid->m_fNoCenterAttract = m_bc.factorAttractToOrigin;
pBoid->m_fNoKeepHeight = m_bc.factorKeepHeight;
pBoid->SetAttracted(false);
}
else
{
float radius = m_bc.fSpawnRadius;
boid->m_pos = m_origin + Vec3(radius*Boid::Frand(),radius*Boid::Frand(),Boid::Frand()*radius);
boid->m_heading = (Vec3(Boid::Frand(),Boid::Frand(),0)).GetNormalized();
boid->m_scale = m_bc.boidScale + Boid::Frand()*m_bc.boidRandomScale;
boid->m_speed = m_bc.MinSpeed + (Boid::Frand()+1)/2.0f*(m_bc.MaxSpeed - m_bc.MinSpeed);
}
AddBoid(boid);
}
m_lastUpdatePosTimePassed = 1;
m_avgBoidPos = GetPos();
//
m_hasLanded = false;
TakeOff();
m_terrainPoints = 0;
}
