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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2009 Trinity <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "Creature.h"
#include "CreatureGroups.h"
#include "ObjectMgr.h"
#include "ProgressBar.h"
#include "Policies/SingletonImp.h"
#define MAX_DESYNC 5.0f
//TODO: Create group manager for each map
INSTANTIATE_SINGLETON_1(CreatureGroupManager);
UNORDERED_MAP<uint32, CreatureGroup*> CreatureGroupHolder;
UNORDERED_MAP<uint32, FormationMember*> CreatureGroupMap;
void CreatureGroupManager::UpdateCreatureGroup(uint32 group_id, Creature *member)
{
if(CreatureGroupHolder.find(group_id) != CreatureGroupHolder.end())
{
sLog.outDebug("Group found: %u, inserting creature GUID: %u", group_id, member->GetGUIDLow());
CreatureGroupHolder[group_id]->AddMember(member);
}
else
{
sLog.outDebug("Group not found: %u. Creating new group.", group_id);
CreatureGroup* formation = new CreatureGroup;
CreatureGroupHolder[group_id] = formation;
formation->AddMember(member);
}
}
void CreatureGroupManager::DestroyGroup(uint32 group_id, uint64 guid)
{
if(CreatureGroupHolder.find(group_id) != CreatureGroupHolder.end())
{
sLog.outDebug("Deleting member pointer to GUID: %u from group %u", group_id, guid);
CreatureGroupHolder[group_id]->RemoveMember(guid);
if(CreatureGroupHolder[group_id]->isEmpty())
{
sLog.outDebug("Deleting group %u", group_id);
delete CreatureGroupHolder[group_id];
CreatureGroupHolder.erase(group_id);
}
}
}
void CreatureGroupManager::LoadCreatureFormations()
{
//Clear existing map
CreatureGroupMap.clear();
//Check Integrity of the table
QueryResult *result = WorldDatabase.PQuery("SELECT MAX(`leaderGUID`) FROM `creature_formations`");
if(!result)
{
sLog.outErrorDb(" an error occured while loading the table `creature_formations` ( maybe it doesn't exist ?)\n");
return;
}
delete result;
//Get group data
result = WorldDatabase.PQuery("SELECT `leaderGUID`, `memberGUID`, `dist`, `angle`, `groupAI` FROM `creature_formations` ORDER BY `leaderGUID`");
if(!result)
{
sLog.outErrorDb("The table `creature_formations` is empty or corrupted");
return;
}
uint32 total_records = result->GetRowCount(), lastLeaderGUID = 0;
barGoLink bar( total_records);
Field *fields;
FormationMember *group_member;
//Loading data...
do
{
fields = result->Fetch();
bar.step();
//Load group member data
group_member = new FormationMember;
group_member->leaderGUID = fields[0].GetUInt32();
group_member->memberGUID = fields[1].GetUInt32();
group_member->groupAI = fields[4].GetUInt8();
//If creature is group leader we may skip loading of dist/angle
if(group_member->leaderGUID != group_member->memberGUID)
{
group_member->follow_dist = fields[2].GetUInt32();
group_member->follow_angle = fields[3].GetUInt32();
}
CreatureGroupMap[group_member->memberGUID] = group_member;
if(lastLeaderGUID != group_member->leaderGUID)
lastLeaderGUID = group_member->leaderGUID;
}
while(result->NextRow()) ;
sLog.outString();
sLog.outString( ">> Loaded %u creatures in formations", total_records );
sLog.outString();
//Free some heap
delete result;
}
void CreatureGroup::AddMember(Creature *member)
{
sLog.outDebug("Adding unit GUID: %u.", member->GetGUIDLow());
uint64 guid = member->GetGUID();
//We first search creature member if exist
if(CreatureGroupMembers.find(guid) != CreatureGroupMembers.end())
return;
//Check is that shit is a leader
if(member->IsFormationLeader())
{
sLog.outDebug("Unit GUID: %u is formation leader. Adding group.", member->GetGUIDLow());
m_leader = member;
}
//Add to the club
CreatureGroupMembers[guid] = member;
sLog.outDebug("Unit GUID: %u added.", member->GetGUID());
}
void CreatureGroup::RemoveMember(uint64 guid)
{
if(CreatureGroupMembers.find(guid) != CreatureGroupMembers.end())
CreatureGroupMembers.erase(guid);
}
void CreatureGroup::MemberHasAttacked(Creature *member)
{
uint8 groupAI = CreatureGroupMap[member->GetDBTableGUIDLow()]->groupAI;;
for(UNORDERED_MAP<uint64, Creature*>::iterator itr = CreatureGroupMembers.begin(); itr != CreatureGroupMembers.end(); itr++)
{
sLog.outDebug("AI:%u:Group member found: %u, attacked by %s.", groupAI, itr->second->GetGUIDLow(), member->getVictim()->GetName());
if(itr->second)
{
switch(groupAI)
{
case 0:
return;
case 1:
if(!member->IsFormationLeader())
return;
}
//Attack if everything is OK
itr->second->AI()->AttackStart(member->getVictim());
}
}
}
void CreatureGroup::LeaderMovedInEvade()
{
for(UNORDERED_MAP<uint64, Creature*>::iterator itr = CreatureGroupMembers.begin(); itr != CreatureGroupMembers.end(); itr++)
{
if(itr->second && itr->second->isAlive() && !itr->second->isInCombat() && !itr->second->getVictim())
SetMemberDestination(itr->second);
}
}
void CreatureGroup::SetMemberDestination(Creature *member)
{
if(!member || !m_leader || member->IsFormationLeader())
return;
float x,y,z;
uint32 lowguid = member->GetDBTableGUIDLow();
UNORDERED_MAP<uint32, FormationMember*>::iterator itr2 = CreatureGroupMap.find(lowguid);
if(m_leader->GetMotionMaster()->GetDestination(x,y,z) && itr2 != CreatureGroupMap.end())
{
float dist, angle, pathangle;
angle = CreatureGroupMap[lowguid]->follow_angle;
dist = CreatureGroupMap[lowguid]->follow_dist;
pathangle = atan2(m_leader->GetPositionY()-y, m_leader->GetPositionX()-x);
x = x+cos(angle+pathangle)*dist;
y = y+sin(angle+pathangle)*dist;
member->GetMotionMaster()->Clear();
if(member->GetDistance(m_leader) < dist+MAX_DESYNC)
member->SetUnitMovementFlags(m_leader->GetUnitMovementFlags());
else
member->RemoveUnitMovementFlag(MOVEMENTFLAG_WALK_MODE);
member->GetMotionMaster()->MovePoint(0, x, y, z);
}
}
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