PassiveMonster.cpp

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#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules

#include "PassiveMonster.h"
#include "../World.h"
#include "../Entities/Player.h"
#include "../BoundingBox.h"
#include "../Items/ItemSpawnEgg.h"




cPassiveMonster::cPassiveMonster(const AString & a_ConfigName, eMonsterType a_MobType, const AString & a_SoundHurt, const AString & a_SoundDeath, double a_Width, double a_Height) :
    super(a_ConfigName, a_MobType, a_SoundHurt, a_SoundDeath, a_Width, a_Height),
    m_LovePartner(nullptr),
    m_LoveTimer(0),
    m_LoveCooldown(0),
    m_MatingTimer(0)
{
    m_EMPersonality = PASSIVE;
}





bool cPassiveMonster::DoTakeDamage(TakeDamageInfo & a_TDI)
{
    if (!super::DoTakeDamage(a_TDI))
    {
        return false;
    }
    if ((a_TDI.Attacker != this) && (a_TDI.Attacker != nullptr))
    {
        m_EMState = ESCAPING;
    }
    return true;
}





void cPassiveMonster::EngageLoveMode(cPassiveMonster * a_Partner)
{
    m_LovePartner = a_Partner;
    m_MatingTimer = 50;  // about 3 seconds of mating
}





void cPassiveMonster::ResetLoveMode()
{
    m_LovePartner = nullptr;
    m_LoveTimer = 0;
    m_MatingTimer = 0;
    m_LoveCooldown = 20 * 60 * 5;  // 5 minutes

    // when an animal is in love mode, the client only stops sending the hearts if we let them know it's in cooldown, which is done with the "age" metadata
    m_World->BroadcastEntityMetadata(*this);
}





void cPassiveMonster::Destroyed()
{
    if (m_LovePartner != nullptr)
    {
        m_LovePartner->ResetLoveMode();
    }
    super::Destroyed();
}





void cPassiveMonster::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
{
    super::Tick(a_Dt, a_Chunk);
    if (!IsTicking())
    {
        // The base class tick destroyed us
        return;
    }

    if (m_EMState == ESCAPING)
    {
        CheckEventLostPlayer();
    }

    // if we have a partner, mate
    if (m_LovePartner != nullptr)
    {

        if (m_MatingTimer > 0)
        {
            // If we should still mate, keep bumping into them until baby is made
            Vector3d Pos = m_LovePartner->GetPosition();
            MoveToPosition(Pos);
        }
        else
        {
            // Mating finished. Spawn baby
            Vector3f Pos = (GetPosition() + m_LovePartner->GetPosition()) * 0.5;
            UInt32 BabyID = m_World->SpawnMob(Pos.x, Pos.y, Pos.z, GetMobType(), true);

            cPassiveMonster * Baby = nullptr;

            m_World->DoWithEntityByID(BabyID, [&](cEntity & a_Entity)
                {
                    Baby = static_cast<cPassiveMonster *>(&a_Entity);
                    return true;
                }
            );

            if (Baby != nullptr)
            {
                Baby->InheritFromParents(this, m_LovePartner);
            }

            m_World->SpawnExperienceOrb(Pos.x, Pos.y, Pos.z, GetRandomProvider().RandInt(1, 6));

            m_LovePartner->ResetLoveMode();
            ResetLoveMode();
        }
    }
    else
    {
        // We have no partner, so we just chase the player if they have our breeding item
        cItems FollowedItems;
        GetFollowedItems(FollowedItems);
        if (FollowedItems.Size() > 0)
        {
            m_World->DoWithNearestPlayer(GetPosition(), static_cast<float>(m_SightDistance), [&](cPlayer & a_Player) -> bool
            {
                cItem EquippedItem = a_Player.GetEquippedItem();
                if (FollowedItems.ContainsType(EquippedItem))
                {
                    Vector3d PlayerPos = a_Player.GetPosition();
                    MoveToPosition(PlayerPos);
                }

                return true;
            });
        }
    }

    // If we are in love mode but we have no partner, search for a partner neabry
    if (m_LoveTimer > 0)
    {
        if (m_LovePartner == nullptr)
        {
            m_World->ForEachEntityInBox(cBoundingBox(GetPosition(), 8, 8), [=](cEntity & a_Entity)
                {
                    // If the entity is not a monster, don't breed with it
                    // Also, do not self-breed
                    if ((a_Entity.GetEntityType() != etMonster) || (&a_Entity == this))
                    {
                        return false;
                    }

                    auto & Me = static_cast<cPassiveMonster&>(*this);
                    auto & PotentialPartner = static_cast<cPassiveMonster&>(a_Entity);

                    // If the potential partner is not of the same species, don't breed with it
                    if (PotentialPartner.GetMobType() != Me.GetMobType())
                    {
                        return false;
                    }

                    // If the potential partner is not in love
                    // Or they already have a mate, do not breed with them
                    if ((!PotentialPartner.IsInLove()) || (PotentialPartner.GetPartner() != nullptr))
                    {
                        return false;
                    }

                    // All conditions met, let's breed!
                    PotentialPartner.EngageLoveMode(&Me);
                    Me.EngageLoveMode(&PotentialPartner);
                    return true;
                }
            );
        }

        m_LoveTimer--;
    }
    if (m_MatingTimer > 0)
    {
        m_MatingTimer--;
    }
    if (m_LoveCooldown > 0)
    {
        m_LoveCooldown--;
    }
}





void cPassiveMonster::OnRightClicked(cPlayer & a_Player)
{
    super::OnRightClicked(a_Player);

    const cItem & EquippedItem = a_Player.GetEquippedItem();

    // If a player holding breeding items right-clicked me, go into love mode
    if ((m_LoveCooldown == 0) && !IsInLove() && !IsBaby())
    {
        cItems Items;
        GetBreedingItems(Items);
        if (Items.ContainsType(EquippedItem.m_ItemType))
        {
            if (!a_Player.IsGameModeCreative())
            {
                a_Player.GetInventory().RemoveOneEquippedItem();
            }
            m_LoveTimer = 20 * 30;  // half a minute
            m_World->BroadcastEntityStatus(*this, esMobInLove);
        }
    }
    // If a player holding my spawn egg right-clicked me, spawn a new baby
    if (EquippedItem.m_ItemType == E_ITEM_SPAWN_EGG)
    {
        eMonsterType MonsterType = cItemSpawnEggHandler::ItemDamageToMonsterType(EquippedItem.m_ItemDamage);
        if (
            (MonsterType == m_MobType) &&
            (m_World->SpawnMob(GetPosX(), GetPosY(), GetPosZ(), m_MobType, true) != cEntity::INVALID_ID)  // Spawning succeeded
        )
        {
            if (!a_Player.IsGameModeCreative())
            {
                // The mob was spawned, "use" the item:
                a_Player.GetInventory().RemoveOneEquippedItem();
            }
        }
    }
}