public void 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 = (float)Math.Atan2(m_leader.GetPositionY() - y, m_leader.GetPositionX() - x);
foreach (var pair in m_members)
{
Creature member = pair.Key;
if (member == m_leader || !member.IsAlive() || member.GetVictim() || !pair.Value.groupAI.HasAnyFlag((uint)GroupAIFlags.IdleInFormation))
{
continue;
}
if (pair.Value.point_1 != 0)
{
if (m_leader.GetCurrentWaypointID() == pair.Value.point_1 - 1 || m_leader.GetCurrentWaypointID() == pair.Value.point_2 - 1)
{
pair.Value.follow_angle = (float)Math.PI * 2 - pair.Value.follow_angle;
}
}
float angle = pair.Value.follow_angle;
float dist = pair.Value.follow_dist;
float dx = x + (float)Math.Cos(angle + pathangle) * dist;
float dy = y + (float)Math.Sin(angle + pathangle) * dist;
float dz = z;
GridDefines.NormalizeMapCoord(ref dx);
GridDefines.NormalizeMapCoord(ref dy);
if (!member.IsFlying())
{
member.UpdateGroundPositionZ(dx, dy, ref dz);
}
if (member.IsWithinDist(m_leader, dist + 5.0f))
{
member.SetUnitMovementFlags(m_leader.GetUnitMovementFlags());
}
else
{
member.SetWalk(false);
}
member.GetMotionMaster().MovePoint(0, dx, dy, dz);
member.SetHomePosition(dx, dy, dz, pathangle);
}
}
public void MemberAttackStart(Creature member, Unit target)
{
GroupAIFlags groupAI = (GroupAIFlags)FormationMgr.CreatureGroupMap[member.GetSpawnId()].groupAI;
if (groupAI == 0)
{
return;
}
if (member == m_leader)
{
if (!groupAI.HasAnyFlag(GroupAIFlags.MembersAssistLeader))
{
return;
}
}
else if (!groupAI.HasAnyFlag(GroupAIFlags.LeaderAssistsMember))
{
return;
}
foreach (var pair in m_members)
{
if (m_leader) // avoid crash if leader was killed and reset.
{
Log.outDebug(LogFilter.Unit, "GROUP ATTACK: group instance id {0} calls member instid {1}", m_leader.GetInstanceId(), member.GetInstanceId());
}
Creature other = pair.Key;
// Skip self
if (other == member)
{
continue;
}
if (!other.IsAlive())
{
continue;
}
if (other.GetVictim())
{
continue;
}
if (((other != m_leader && groupAI.HasAnyFlag(GroupAIFlags.MembersAssistLeader)) || (other == m_leader && groupAI.HasAnyFlag(GroupAIFlags.LeaderAssistsMember))) && other.IsValidAttackTarget(target))
{
other.GetAI().AttackStart(target);
}
}
}
public void MemberEngagingTarget(Creature member, Unit target)
{
GroupAIFlags groupAI = (GroupAIFlags)FormationMgr.CreatureGroupMap[member.GetSpawnId()].groupAI;
if (groupAI == 0)
{
return;
}
if (member == m_leader)
{
if (!groupAI.HasAnyFlag(GroupAIFlags.MembersAssistLeader))
{
return;
}
}
else if (!groupAI.HasAnyFlag(GroupAIFlags.LeaderAssistsMember))
{
return;
}
foreach (var pair in m_members)
{
Creature other = pair.Key;
// Skip self
if (other == member)
{
continue;
}
if (!other.IsAlive())
{
continue;
}
if (((other != m_leader && groupAI.HasAnyFlag(GroupAIFlags.MembersAssistLeader)) || (other == m_leader && groupAI.HasAnyFlag(GroupAIFlags.LeaderAssistsMember))) && other.IsValidAttackTarget(target))
{
other.EngageWithTarget(target);
}
}
}