scriptdev2/base/escort_ai.cpp at master · lovefancy88/scriptdev2 · GitHub

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/* This file is part of the ScriptDev2 Project. See AUTHORS file for Copyright information

* This program is free software licensed under GPL version 2

* Please see the included DOCS/LICENSE.TXT for more information */

/* ScriptData

SDName: EscortAI

SD%Complete: 100

SDComment:

SDCategory: Npc

EndScriptData */

#include "precompiled.h"

#include "escort_ai.h"

#include "../system/system.h"

const float MAX_PLAYER_DISTANCE = 66.0f;

npc_escortAI::npc_escortAI(Creature* pCreature) : ScriptedAI(pCreature),

m_uiPlayerCheckTimer(1000),

m_uiEscortState(STATE_ESCORT_NONE),

m_pQuestForEscort(NULL),

m_bIsRunning(false),

m_bCanInstantRespawn(false),

m_bCanReturnToStart(false)

{}

void npc_escortAI::GetAIInformation(ChatHandler& reader)

{

std::ostringstream oss;

oss << "EscortAI ";

if (m_playerGuid)

oss << "started for " << m_playerGuid.GetString() << " ";

if (m_pQuestForEscort)

oss << "started with quest " << m_pQuestForEscort->GetQuestId();

if (HasEscortState(STATE_ESCORT_ESCORTING))

{

oss << "\nEscortFlags: Escorting" << (HasEscortState(STATE_ESCORT_RETURNING) ? ", Returning" : "") << (HasEscortState(STATE_ESCORT_PAUSED) ? ", Paused" : "") << "\n";

m_creature->GetMotionMaster()->GetWaypointPathInformation(oss);

}

reader.PSendSysMessage(oss.str().c_str());

}

bool npc_escortAI::IsVisible(Unit* pWho) const

{

if (!pWho)

return false;

return m_creature->IsWithinDist(pWho, VISIBLE_RANGE) && pWho->isVisibleForOrDetect(m_creature, m_creature, true);

}

void npc_escortAI::Aggro(Unit* /*pEnemy*/) {}

// see followerAI

bool npc_escortAI::AssistPlayerInCombat(Unit* pWho)

{

if (!pWho->getVictim())

return false;

// experimental (unknown) flag not present

if (!(m_creature->GetCreatureInfo()->CreatureTypeFlags & CREATURE_TYPEFLAGS_CAN_ASSIST))

return false;

// unit state prevents (similar check is done in CanInitiateAttack which also include checking unit_flags. We skip those here)

if (m_creature->hasUnitState(UNIT_STAT_STUNNED | UNIT_STAT_DIED))

return false;

// victim of pWho is not a player

if (!pWho->getVictim()->GetCharmerOrOwnerPlayerOrPlayerItself())

return false;

// never attack friendly

if (m_creature->IsFriendlyTo(pWho))

return false;

// too far away and no free sight?

if (m_creature->IsWithinDistInMap(pWho, MAX_PLAYER_DISTANCE) && m_creature->IsWithinLOSInMap(pWho))

{

// already fighting someone?

if (!m_creature->getVictim())

{

AttackStart(pWho);

return true;

}

else

{

pWho->SetInCombatWith(m_creature);

m_creature->AddThreat(pWho);

return true;

}

return false;

}

void npc_escortAI::MoveInLineOfSight(Unit* pWho)

{

if (pWho->isTargetableForAttack() && pWho->isInAccessablePlaceFor(m_creature))

{

// AssistPlayerInCombat can start attack, so return if true

if (HasEscortState(STATE_ESCORT_ESCORTING) && AssistPlayerInCombat(pWho))

return;

if (!m_creature->CanInitiateAttack())

return;

if (!m_creature->CanFly() && m_creature->GetDistanceZ(pWho) > CREATURE_Z_ATTACK_RANGE)

return;

if (m_creature->IsHostileTo(pWho))

{

float fAttackRadius = m_creature->GetAttackDistance(pWho);

if (m_creature->IsWithinDistInMap(pWho, fAttackRadius) && m_creature->IsWithinLOSInMap(pWho))

{

if (!m_creature->getVictim())

{

pWho->RemoveSpellsCausingAura(SPELL_AURA_MOD_STEALTH);

AttackStart(pWho);

}

else if (m_creature->GetMap()->IsDungeon())

{

pWho->SetInCombatWith(m_creature);

m_creature->AddThreat(pWho);

}

void npc_escortAI::JustDied(Unit* /*pKiller*/)

{

if (!HasEscortState(STATE_ESCORT_ESCORTING) || !m_playerGuid || !m_pQuestForEscort)

return;

if (Player* pPlayer = GetPlayerForEscort())

{

if (Group* pGroup = pPlayer->GetGroup())

{

for (GroupReference* pRef = pGroup->GetFirstMember(); pRef != NULL; pRef = pRef->next())

{

if (Player* pMember = pRef->getSource())

{

if (pMember->GetQuestStatus(m_pQuestForEscort->GetQuestId()) == QUEST_STATUS_INCOMPLETE)

pMember->FailQuest(m_pQuestForEscort->GetQuestId());

}

else

{

if (pPlayer->GetQuestStatus(m_pQuestForEscort->GetQuestId()) == QUEST_STATUS_INCOMPLETE)

pPlayer->FailQuest(m_pQuestForEscort->GetQuestId());

}

void npc_escortAI::JustRespawned()

{

m_uiEscortState = STATE_ESCORT_NONE;

if (!IsCombatMovement())

SetCombatMovement(true);

Reset();

}

bool npc_escortAI::IsPlayerOrGroupInRange()

{

if (Player* pPlayer = GetPlayerForEscort())

{

if (Group* pGroup = pPlayer->GetGroup())

{

for (GroupReference* pRef = pGroup->GetFirstMember(); pRef != NULL; pRef = pRef->next())

{

Player* pMember = pRef->getSource();

if (pMember && m_creature->IsWithinDistInMap(pMember, MAX_PLAYER_DISTANCE))

return true;

}

else

{

if (m_creature->IsWithinDistInMap(pPlayer, MAX_PLAYER_DISTANCE))

return true;

}

return false;

}

void npc_escortAI::UpdateAI(const uint32 uiDiff)

{

// Check if player or any member of his group is within range

if (HasEscortState(STATE_ESCORT_ESCORTING) && m_playerGuid && !m_creature->getVictim() && !HasEscortState(STATE_ESCORT_RETURNING))

{

if (m_uiPlayerCheckTimer < uiDiff)

{

if (!HasEscortState(STATE_ESCORT_PAUSED) && !IsPlayerOrGroupInRange())

{

debug_log("SD2: EscortAI failed because player/group was to far away or not found");

if (m_bCanInstantRespawn)

{

m_creature->SetDeathState(JUST_DIED);

m_creature->Respawn();

}

else

m_creature->ForcedDespawn();

return;

}

m_uiPlayerCheckTimer = 1000;

}

else

m_uiPlayerCheckTimer -= uiDiff;

}

UpdateEscortAI(uiDiff);

}

void npc_escortAI::UpdateEscortAI(const uint32 /*uiDiff*/)

{

// Check if we have a current target

if (!m_creature->SelectHostileTarget() || !m_creature->getVictim())

return;

DoMeleeAttackIfReady();

}

/// Helper function for transition between old Escort Movment and using WaypointMMGen

bool npc_escortAI::IsSD2EscortMovement(uint32 uiMoveType) const

{

return uiMoveType >= EXTERNAL_WAYPOINT_MOVE;

}

void npc_escortAI::MovementInform(uint32 uiMoveType, uint32 uiPointId)

{

if (!IsSD2EscortMovement(uiMoveType) || !HasEscortState(STATE_ESCORT_ESCORTING))

return;

//uint32 pathId = uiMoveType & 0xFF;

if (uiMoveType < EXTERNAL_WAYPOINT_MOVE_START)

WaypointReached(uiPointId);

else if (uiMoveType < EXTERNAL_WAYPOINT_FINISHED_LAST)

WaypointStart(uiPointId);

else // Last WP Reached

{

if (m_bCanInstantRespawn)

{

m_creature->SetDeathState(JUST_DIED);

m_creature->Respawn();

}

else

m_creature->ForcedDespawn();

}

void npc_escortAI::SetCurrentWaypoint(uint32 uiPointId)

{

if (!(HasEscortState(STATE_ESCORT_PAUSED))) // Only when paused

{

script_error_log("EscortAI for %s tried to set new waypoint %u, but not paused", m_creature->GetGuidStr().c_str(), uiPointId);

return;

}

if (!m_creature->GetMotionMaster()->SetNextWaypoint(uiPointId))

{

script_error_log("EscortAI for %s current waypoint tried to set to id %u, but doesn't exist in this path", m_creature->GetGuidStr().c_str(), uiPointId);

return;

}

void npc_escortAI::SetRun(bool bRun)

{

if (bRun)

{

if (!m_bIsRunning)

m_creature->SetWalk(false);

else

debug_log("SD2: EscortAI attempt to set run mode, but is already running.");

}

else

{

if (m_bIsRunning)

m_creature->SetWalk(true);

else

debug_log("SD2: EscortAI attempt to set walk mode, but is already walking.");

}

m_bIsRunning = bRun;

}

// TODO: get rid of this many variables passed in function.

void npc_escortAI::Start(bool bRun, const Player* pPlayer, const Quest* pQuest, bool bInstantRespawn, bool bCanLoopPath)

{

if (m_creature->getVictim())

{

script_error_log("EscortAI attempt to Start while in combat.");

return;

}

if (HasEscortState(STATE_ESCORT_ESCORTING))

{

script_error_log("EscortAI attempt to Start while already escorting.");

return;

}

if (!pSystemMgr.GetPathInfo(m_creature->GetEntry(), 1))

{

script_error_log("EscortAI attempt to start escorting for %s, but has no waypints loaded", m_creature->GetGuidStr().c_str());

return;

}

// set variables

m_bIsRunning = bRun;

m_playerGuid = pPlayer ? pPlayer->GetObjectGuid() : ObjectGuid();

m_pQuestForEscort = pQuest;

m_bCanInstantRespawn = bInstantRespawn;

m_bCanReturnToStart = bCanLoopPath;

if (m_bCanReturnToStart && m_bCanInstantRespawn)

debug_log("SD2: EscortAI is set to return home after waypoint end and instant respawn at waypoint end. Creature will never despawn.");

// disable npcflags

m_creature->SetUInt32Value(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_NONE);

AddEscortState(STATE_ESCORT_ESCORTING);

// Set initial speed

m_creature->SetWalk(!m_bIsRunning);

m_creature->StopMoving();

// Start moving along the path with 2500ms delay

m_creature->GetMotionMaster()->Clear(false, true);

m_creature->GetMotionMaster()->MoveWaypoint(1, 3, 2500);

JustStartedEscort();

}

void npc_escortAI::SetEscortPaused(bool bPaused)

{

if (!HasEscortState(STATE_ESCORT_ESCORTING))

return;

if (bPaused)

{

AddEscortState(STATE_ESCORT_PAUSED);

m_creature->addUnitState(UNIT_STAT_WAYPOINT_PAUSED);

}

else

{

RemoveEscortState(STATE_ESCORT_PAUSED);

m_creature->clearUnitState(UNIT_STAT_WAYPOINT_PAUSED);

}

scriptdev2/base/escort_ai.cpp at master · lovefancy88/scriptdev2 · GitHub

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