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Core/AI: streamline FollowerAI::AssistPlayerInCombatAgainst with SmartAI and EscortAI

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Port From (https://github.com/TrinityCore/TrinityCore/commit/edbf45404be2cf003ceec7b4344180616b0e2315)
This commit is contained in:
hondacrx
2021-12-07 17:48:33 -05:00
parent fd2db909b4
commit 3ec8fc41cb
1 changed files with 112 additions and 73 deletions
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Source/Game/AI/ScriptedAI/ScriptedFollowerAI.cs
+112 -73
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@@ -48,6 +48,23 @@ namespace Game.AI
_questForFollow = null;
}
public override void MovementInform(MovementGeneratorType motionType, uint pointId)
{
if (motionType != MovementGeneratorType.Point || !HasFollowState(FollowState.Inprogress))
return;
if (pointId == 0xFFFFFF)
{
if (GetLeaderForFollower())
{
if (!HasFollowState(FollowState.Paused))
AddFollowState(FollowState.Returning);
}
else
me.DespawnOrUnsummon();
}
}
public override void AttackStart(Unit who)
{
if (!who)
@@ -65,36 +82,6 @@ namespace Game.AI
}
}
//This part provides assistance to a player that are attacked by who, even if out of normal aggro range
//It will cause me to attack who that are attacking _any_ player (which has been confirmed may happen also on offi)
//The flag (type_flag) is unconfirmed, but used here for further research and is a good candidate.
bool AssistPlayerInCombatAgainst(Unit who)
{
if (!who || !who.GetVictim())
return false;
//experimental (unknown) flag not present
if (!me.GetCreatureTemplate().TypeFlags.HasAnyFlag(CreatureTypeFlags.CanAssist))
return false;
//not a player
if (!who.GetVictim().GetCharmerOrOwnerPlayerOrPlayerItself())
return false;
//never attack friendly
if (me.IsFriendlyTo(who))
return false;
//too far away and no free sight?
if (me.IsWithinDistInMap(who, 100.0f) && me.IsWithinLOSInMap(who))
{
me.EngageWithTarget(who);
return true;
}
return false;
}
public override void MoveInLineOfSight(Unit who)
{
if (me.HasReactState(ReactStates.Aggressive) && !me.HasUnitState(UnitState.Stunned) && who.IsTargetableForAttack() && who.IsInAccessiblePlaceFor(me))
@@ -264,23 +251,6 @@ namespace Game.AI
DoMeleeAttackIfReady();
}
public override void MovementInform(MovementGeneratorType motionType, uint pointId)
{
if (motionType != MovementGeneratorType.Point || !HasFollowState(FollowState.Inprogress))
return;
if (pointId == 0xFFFFFF)
{
if (GetLeaderForFollower())
{
if (!HasFollowState(FollowState.Paused))
AddFollowState(FollowState.Returning);
}
else
me.DespawnOrUnsummon();
}
}
public void StartFollow(Player player, uint factionForFollower = 0, Quest quest = null)
{
if (me.GetVictim())
@@ -320,34 +290,26 @@ namespace Game.AI
Log.outDebug(LogFilter.Scripts, "FollowerAI start follow {0} ({1})", player.GetName(), _leaderGUID.ToString());
}
Player GetLeaderForFollower()
void SetFollowPaused(bool paused)
{
Player player = Global.ObjAccessor.GetPlayer(me, _leaderGUID);
if (player)
{
if (player.IsAlive())
return player;
else
{
Group group = player.GetGroup();
if (group)
{
for (GroupReference groupRef = group.GetFirstMember(); groupRef != null; groupRef = groupRef.Next())
{
Player member = groupRef.GetSource();
if (member && me.IsWithinDistInMap(member, 100.0f) && member.IsAlive())
{
Log.outDebug(LogFilter.Scripts, "FollowerAI GetLeader changed and returned new leader.");
_leaderGUID = member.GetGUID();
return member;
}
}
}
}
}
if (!HasFollowState(FollowState.Inprogress) || HasFollowState(FollowState.Complete))
return;
Log.outDebug(LogFilter.Scripts, "FollowerAI GetLeader can not find suitable leader.");
return null;
if (paused)
{
AddFollowState(FollowState.Paused);
if (me.HasUnitState(UnitState.Follow))
me.GetMotionMaster().Remove(MovementGeneratorType.Follow);
}
else
{
RemoveFollowState(FollowState.Paused);
Player leader = GetLeaderForFollower();
if (leader != null)
me.GetMotionMaster().MoveFollow(leader, SharedConst.PetFollowDist, SharedConst.PetFollowAngle);
}
}
public void SetFollowComplete(bool bWithEndEvent = false)
@@ -372,6 +334,83 @@ namespace Game.AI
AddFollowState(FollowState.Complete);
}
Player GetLeaderForFollower()
{
Player player = Global.ObjAccessor.GetPlayer(me, _leaderGUID);
if (player)
{
if (player.IsAlive())
return player;
else
{
Group group = player.GetGroup();
if (group)
{
for (GroupReference groupRef = group.GetFirstMember(); groupRef != null; groupRef = groupRef.Next())
{
Player member = groupRef.GetSource();
if (member && me.IsWithinDistInMap(member, 100.0f) && member.IsAlive())
{
Log.outDebug(LogFilter.Scripts, "FollowerAI GetLeader changed and returned new leader.");
_leaderGUID = member.GetGUID();
return member;
}
}
}
}
}
Log.outDebug(LogFilter.Scripts, "FollowerAI GetLeader can not find suitable leader.");
return null;
}
//This part provides assistance to a player that are attacked by who, even if out of normal aggro range
//It will cause me to attack who that are attacking _any_ player (which has been confirmed may happen also on offi)
//The flag (type_flag) is unconfirmed, but used here for further research and is a good candidate.
bool AssistPlayerInCombatAgainst(Unit who)
{
if (!who || !who.GetVictim())
return false;
if (me.HasReactState(ReactStates.Passive))
return false;
//experimental (unknown) flag not present
if (!me.GetCreatureTemplate().TypeFlags.HasAnyFlag(CreatureTypeFlags.CanAssist))
return false;
//not a player
if (!who.GetVictim().GetCharmerOrOwnerPlayerOrPlayerItself())
return false;
if (!who.IsInAccessiblePlaceFor(me))
return false;
if (!CanAIAttack(who))
return false;
// we cannot attack in evade mode
if (me.IsInEvadeMode())
return false;
// or if enemy is in evade mode
if (who.GetTypeId() == TypeId.Unit && who.ToCreature().IsInEvadeMode())
return false;
//never attack friendly
if (me.IsFriendlyTo(who))
return false;
//too far away and no free sight?
if (me.IsWithinDistInMap(who, 100.0f) && me.IsWithinLOSInMap(who))
{
me.EngageWithTarget(who);
return true;
}
return false;
}
bool HasFollowState(FollowState uiFollowState) { return (_followState & uiFollowState) != 0; }
void AddFollowState(FollowState uiFollowState) { _followState |= uiFollowState; }