// Applies the three laws to the flock of boids
void Boid::flock(vector<Boid> v)
{
Pvector sep = Separation(v);
Pvector ali = Alignment(v);
Pvector coh = Cohesion(v);
// Arbitrarily weight these forces
sep.mulScalar(SepW);
ali.mulScalar(AliW); // Might need to alter weights for different characteristics
coh.mulScalar(CohW);
// Add the force vectors to acceleration
applyForce(sep);
applyForce(ali);
applyForce(coh);
}
void Small::Update(int mousex, int mousey)
{
//XMVECTOR playerlocation = {playerx, playery, 0, 0};
//float displacement = XMVectorGetX(XMVector2Length(playerlocation - Location));
//if (displacement <= 130.0f)
//{
//Separation(0.000f);
//Cohesion(0.000f);
//Alignment(0.0f);
//Chase(0.03f);
//}
//else
//{
if (Flocking)
{
Separation(0.04f);
Cohesion(0.01f);
Alignment(0.01f);
}
else
{
//Wander
}
if (Chasing)
{
Chase(0.05f);
}
BorderRestrict();
if (Chasing)
{
Location += (Direction * 3.3f);
}
PointingTwoLocation = Location + (Direction * 10.0f);
}
//---------------------- CalculateWeightedSum ----------------------------
//
// this simply sums up all the active behaviors X their weights and
// truncates the result to the max available steering force before
// returning
//------------------------------------------------------------------------
ofVec3f SteeringBehaviors::CalculateWeightedSum()
{
if (On(wall_avoidance))
{
m_SteeringForce += WallAvoidance(m_Vehicle->GameWorld()->getWalls()) * m_WeightObstacleAvoidance;
}
if (On(obstacle_avoidance))
{
m_SteeringForce += ObstacleAvoidance( m_Vehicle->GameWorld()->getObstacles() ) * m_WeightObstacleAvoidance;
}
if (On(seek))
{
m_SteeringForce += Seek(m_Vehicle->Target()->Pos()) * m_WeightSeek;
}
if (On(flee))
{
m_SteeringForce += Flee(m_Vehicle->Target()->Pos()) * m_WeightFlee;
}
if (On(arrive))
{
m_SteeringForce += Arrive(m_Vehicle->Target()->Pos(), normal) * m_WeightArrive;
}
if (!isSpacePartioningOn())
{
if (On(separation))
{
m_SteeringForce += Separation(m_Vehicle->rGroup()) * m_WeightSeparation;
}
if (On(alignment))
{
m_SteeringForce += Alignment(m_Vehicle->rGroup()) * m_WeightAlignment;
}
if (On(cohesion))
{
m_SteeringForce += Cohesion(m_Vehicle->rGroup()) * m_WeightCohesion;
}
}
else
{
if (On(separation))
{
m_SteeringForce += SeparationPlus(m_Vehicle->rGroup()) * m_WeightSeparation;
}
if (On(alignment))
{
m_SteeringForce += AlignmentPlus(m_Vehicle->rGroup()) * m_WeightAlignment;
}
if (On(cohesion))
{
m_SteeringForce += CohesionPlus(m_Vehicle->rGroup()) * m_WeightCohesion;
}
}
if (On(repulsion))
{
//need to retag the guys!
m_SteeringForce += Repulsion(m_Vehicle->oGroup()) * m_WeightRepulsion;
}
if (On(wander))
{
m_SteeringForce += Wander() * m_WeightWander;
}
if (On(follow_path))
{
m_SteeringForce += FollowPath() * m_WeightFollowPath;
}
m_SteeringForce.limit(m_Vehicle->MaxForce());
return m_SteeringForce;
}
//---------------------- CalculatePrioritized ----------------------------
//
// this method calls each active steering behavior in order of priority
// and acumulates their forces until the max steering force magnitude
// is reached, at which time the function returns the steering force
// accumulated to that point
//------------------------------------------------------------------------
ofVec3f SteeringBehaviors::CalculatePrioritized() {
ofVec3f force;
if (On(wall_avoidance))
{
force = WallAvoidance(m_Vehicle->GameWorld()->getWalls()) * m_WeightObstacleAvoidance;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(obstacle_avoidance))
{
force = ObstacleAvoidance(m_Vehicle->GameWorld()->getObstacles()) * m_WeightObstacleAvoidance;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(flee))
{
force = Flee(m_Vehicle->Target()->Pos()) * m_WeightFlee;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(repulsion))
{
//need to retage the guys!
force = Repulsion(m_Vehicle->oGroup()) * m_WeightRepulsion;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (!isSpacePartioningOn())
{
if (On(separation))
{
force = Separation(m_Vehicle->rGroup()) * m_WeightSeparation;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(alignment))
{
force = Alignment(m_Vehicle->rGroup()) * m_WeightAlignment;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(cohesion))
{
force = Cohesion(m_Vehicle->rGroup()) * m_WeightCohesion;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
}
else
{
if (On(separation))
{
force = SeparationPlus(m_Vehicle->rGroup()) * m_WeightSeparation;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(alignment))
{
force = AlignmentPlus(m_Vehicle->rGroup()) * m_WeightAlignment;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(cohesion))
{
force = CohesionPlus(m_Vehicle->rGroup()) * m_WeightCohesion;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
}
if (On(seek))
{
force = Seek(m_Vehicle->Target()->Pos()) * m_WeightSeek;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(arrive))
{
force = Arrive(m_Vehicle->Target()->Pos(), normal) * m_WeightArrive;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(wander))
{
force = Wander() * m_WeightWander;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
if (On(follow_path))
{
force = FollowPath() * m_WeightFollowPath;
if (!AccumulateForce(m_SteeringForce, force)) return m_SteeringForce;
}
return m_SteeringForce;
}
Vector2D SteeringBehavior::CalculatePrioritized() {
Vector2D force;
//if (On(wall_avoidance))
//{
// force = WallAvoidance(m_pVehicle->World()->Walls()) *
// m_dWeightWallAvoidance;
// if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
//}
//if (On(obstacle_avoidance))
//{
// force = ObstacleAvoidance(m_pVehicle->World()->Obstacles()) *
// m_dWeightObstacleAvoidance;
// if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
//}
//if (On(evade))
//{
// assert(m_pTargetAgent1 && "Evade target not assigned");
// force = Evade(m_pTargetAgent1) * m_dWeightEvade;
// if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
//}
if (On(flee))
{
force = Flee(vehicle_->GetGameWorld()->Agents()) * m_dWeightFlee;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
// The next three can be combined for flocking behavior (wander is
// Also a good behavior to add into this mix)
if (On(separation)) {
force = Separation(vehicle_->GetGameWorld()->Agents()) * m_dWeightSeparation;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
if (On(alignment)) {
force = Alignment(vehicle_->GetGameWorld()->Agents()) * m_dWeightAlignment;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
if (On(cohesion)) {
force = Cohesion(vehicle_->GetGameWorld()->Agents()) * m_dWeightCohesion;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
//if (On(seek))
//{
// force = Seek(m_pVehicle->World()->Crosshair()) * m_dWeightSeek;
// if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
//}
//if (On(arrive))
//{
// force = Arrive(m_pVehicle->World()->Crosshair(), m_Deceleration) * m_dWeightArrive;
// if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
//}
if (On(wander)) {
force = Wander() * weight_wander_;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
if (On(pursuit))
{
//assert(target_agent_ && "pursuit target not assigned");
force = Pursuit(target_agent_) * m_dWeightPursuit;
if (!AccumulateForce(steering_force_, force)) return steering_force_;
}
/*
if (On(offset_pursuit))
{
assert(m_pTargetAgent1 && "pursuit target not assigned");
assert(!m_vOffset.isZero() && "No offset assigned");
force = OffsetPursuit(m_pTargetAgent1, m_vOffset);
if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
}
if (On(interpose))
{
assert(m_pTargetAgent1 && m_pTargetAgent2 && "Interpose agents not assigned");
force = Interpose(m_pTargetAgent1, m_pTargetAgent2) * m_dWeightInterpose;
if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
}
if (On(hide))
{
assert(m_pTargetAgent1 && "Hide target not assigned");
force = Hide(m_pTargetAgent1, m_pVehicle->World()->Obstacles()) * m_dWeightHide;
if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
}
if (On(follow_path))
{
force = FollowPath() * m_dWeightFollowPath;
if (!AccumulateForce(m_vSteeringForce, force)) return m_vSteeringForce;
}*/
return steering_force_;
}
Vec2 SteeringForce::Calculate()
{
m_vSteeringForce = Vec2::ZERO;
Vec2 force;
std::vector<Vehicle*> neighbors;
if (On(allignment)||On(separation)||On(cohesion)) {
if (m_pVehicle->isCellSpaceOn()) {
CellSpacePartition<Vehicle*>* cellSpace = GameData::Instance()->getCellSpace();
neighbors = cellSpace->getNeighbors();
}else{
auto data = GameData::Instance()->getEntityVector();
neighbors = tagNeighbors(m_pVehicle,data,SearchRad);
}
}
if (On(wall_avoidance)) {
auto data = GameData::Instance()->getWallls();
force = WallAvoidance(data);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(obstacle_avoidance)) {
auto data = GameData::Instance()->getObstacle();
force = ObstacleAvoidance(data);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(separation)) {
force = Separation(neighbors);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(cohesion)) {
force = Cohesion(neighbors);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(allignment)) {
force = Alignment(neighbors);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(hide)) {
CCASSERT(m_pVehicle->getHideTarget()!=nullptr, "不存在躲避目标");
auto data = GameData::Instance()->getEntityVector();
force = Hide(m_pVehicle->getHideTarget(),data);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(follow_path)) {
force = PathFollow();
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(seek)) {
force = Seek(m_pVehicle->getTarget());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(flee)) {
force = Flee(m_pVehicle->getTarget());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(arrive)) {
force = Arrive(m_pVehicle->getTarget(), fast);
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(offset_pursuit)) {
force = OffsetPursuit(m_pVehicle->getLeader(), m_pVehicle->getOffsetToLeader());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(pursuit)) {
force = Pursuit(m_pVehicle->getEvaderv());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(evade)) {
force = Evade(m_pVehicle->getPursuer());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(wander)) {
force = Wander();
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
if (On(interpose)) {
force = Interpose(m_pVehicle->getInterposeA(), m_pVehicle->getInterposeB());
if (!AccumulateForce(m_vSteeringForce, force)) {
return m_vSteeringForce;
}
}
return m_vSteeringForce;
}
