CreatureGroup Class Reference

#include <CreatureGroups.h>

Public Member Functions
	CreatureGroup (ObjectGuid::LowType id)
	~CreatureGroup ()
Creature *	getLeader () const
ObjectGuid::LowType	GetId () const
bool	isEmpty () const
bool	isFormed () const
void	AddMember (Creature *member)
void	RemoveMember (Creature *member)
void	FormationReset (bool dismiss)
void	LeaderMoveTo (float x, float y, float z)
void	MemberAttackStart (Creature *member, Unit *target)

Private Types
typedef std::map< Creature *, FormationInfo * >	CreatureGroupMemberType

Private Attributes
Creature *	m_leader
CreatureGroupMemberType	m_members
ObjectGuid::LowType	m_groupID
bool	m_Formed

Member Typedef Documentation

typedef std::map<Creature*, FormationInfo*> CreatureGroup::CreatureGroupMemberType

private

Constructor & Destructor Documentation

CreatureGroup::CreatureGroup ( ObjectGuid::LowType  id )

inlineexplicit

: m_leader(NULL), m_groupID(id), m_Formed(false) { }

CreatureGroup::~CreatureGroup ( )

inline

{ }

Member Function Documentation

void CreatureGroup::AddMember

(

Creature *

member

)

{
 TC_LOG_DEBUG("entities.unit", "CreatureGroup::AddMember: Adding %s.", member->GetGUID().ToString().c_str());

 //Check if it is a leader
 if (member->GetSpawnId() == m_groupID)
 {
 TC_LOG_DEBUG("entities.unit", "%s is formation leader. Adding group.", member->GetGUID().ToString().c_str());
 m_leader = member;
 }

 m_members[member] = sFormationMgr->CreatureGroupMap.find(member->GetSpawnId())->second;
 member->SetFormation(this);
}

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void CreatureGroup::FormationReset

(

bool

dismiss

)

{
 for (CreatureGroupMemberType::iterator itr = m_members.begin(); itr != m_members.end(); ++itr)
 {
 if (itr->first != m_leader && itr->first->IsAlive())
 {
 if (dismiss)
 itr->first->GetMotionMaster()->Initialize();
 else
 itr->first->GetMotionMaster()->MoveIdle();
 TC_LOG_DEBUG("entities.unit", "Set %s movement for member %s", dismiss ? "default" : "idle", itr->first->GetGUID().ToString().c_str());
 }
 }
 m_Formed = !dismiss;
}

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ObjectGuid::LowType CreatureGroup::GetId ( ) const

inline

{ return m_groupID; }

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Creature* CreatureGroup::getLeader ( ) const

inline

{ return m_leader; }

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bool CreatureGroup::isEmpty ( ) const

inline

{ return m_members.empty(); }

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bool CreatureGroup::isFormed ( ) const

inline

{ return m_Formed; }

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void CreatureGroup::LeaderMoveTo	(	float	x,
		float	y,
		float	z
	)

To do: This should probably get its own movement generator or use WaypointMovementGenerator. If the leader's path is known, member's path can be plotted as well using formation offsets.

{
 if (!m_leader)
 return;

 float pathangle = std::atan2(m_leader->GetPositionY() - y, m_leader->GetPositionX() - x);

 for (CreatureGroupMemberType::iterator itr = m_members.begin(); itr != m_members.end(); ++itr)
 {
 Creature* member = itr->first;
 if (member == m_leader || !member->IsAlive() || member->GetVictim())
 continue;

 if (itr->second->point_1)
 if (m_leader->GetCurrentWaypointID() == itr->second->point_1 - 1 || m_leader->GetCurrentWaypointID() == itr->second->point_2 - 1)
 itr->second->follow_angle = float(M_PI) * 2 - itr->second->follow_angle;

 float angle = itr->second->follow_angle;
 float dist = itr->second->follow_dist;

 float dx = x + std::cos(angle + pathangle) * dist;
 float dy = y + std::sin(angle + pathangle) * dist;
 float dz = z;

 Trinity::NormalizeMapCoord(dx);
 Trinity::NormalizeMapCoord(dy);

 if (!member->IsFlying())
 member->UpdateGroundPositionZ(dx, dy, dz);

 if (member->IsWithinDist(m_leader, dist + MAX_DESYNC))
 member->SetUnitMovementFlags(m_leader->GetUnitMovementFlags());
 else
 member->SetWalk(false);

 member->GetMotionMaster()->MovePoint(0, dx, dy, dz);
 member->SetHomePosition(dx, dy, dz, pathangle);
 }
}

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void CreatureGroup::MemberAttackStart	(	Creature *	member,
		Unit *	target
	)

{
 uint8 groupAI = sFormationMgr->CreatureGroupMap[member->GetSpawnId()]->groupAI;
 if (!groupAI)
 return;

 if (groupAI == 1 && member != m_leader)
 return;

 for (CreatureGroupMemberType::iterator itr = m_members.begin(); itr != m_members.end(); ++itr)
 {
 if (m_leader) // avoid crash if leader was killed and reset.
 TC_LOG_DEBUG("entities.unit", "GROUP ATTACK: group instance id %u calls member instid %u", m_leader->GetInstanceId(), member->GetInstanceId());

 Creature* other = itr->first;

 // Skip self
 if (other == member)
 continue;

 if (!other->IsAlive())
 continue;

 if (other->GetVictim())
 continue;

 if (other->IsValidAttackTarget(target))
 other->AI()->AttackStart(target);
 }
}

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void CreatureGroup::RemoveMember

(

Creature *

member

)

{
 if (m_leader == member)
 m_leader = NULL;

 m_members.erase(member);
 member->SetFormation(NULL);
}

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Member Data Documentation

bool CreatureGroup::m_Formed

private

ObjectGuid::LowType CreatureGroup::m_groupID

private

Creature* CreatureGroup::m_leader

private

CreatureGroupMemberType CreatureGroup::m_members

private

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The documentation for this class was generated from the following files:

• src/server/game/Entities/Creature/CreatureGroups.h
• src/server/game/Entities/Creature/CreatureGroups.cpp