Creeper.cpp

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#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
 
#include "Creeper.h"
#include "../World.h"
#include "../Entities/ProjectileEntity.h"
#include "../Entities/Player.h"
 
 
 
 
 
cCreeper::cCreeper(void) :
    Super("Creeper", mtCreeper, "entity.creeper.hurt", "entity.creeper.death", "entity.creeper.ambient", 0.6f, 1.7f),
    m_bIsBlowing(false),
    m_bIsCharged(false),
    m_BurnedWithFlintAndSteel(false),
    m_ExplodingTimer(0)
{
}
 
 
 
 
 
void cCreeper::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 (((GetTarget() == nullptr) || !TargetIsInRange()) && !m_BurnedWithFlintAndSteel)
    {
        if (m_bIsBlowing)
        {
            m_ExplodingTimer = 0;
            m_bIsBlowing = false;
            m_World->BroadcastEntityMetadata(*this);
        }
    }
    else
    {
        if (m_bIsBlowing)
        {
            m_ExplodingTimer += 1;
        }
 
        if ((m_ExplodingTimer == 30) && (GetHealth() > 0.0))  // only explode when not already dead
        {
            m_World->DoExplosionAt((m_bIsCharged ? 5 : 3), GetPosX(), GetPosY(), GetPosZ(), false, esMonster, this);
            Destroy();  // Just in case we aren't killed by the explosion
        }
    }
}
 
 
 
 
 
void cCreeper::GetDrops(cItems & a_Drops, cEntity * a_Killer)
{
    if (m_ExplodingTimer == 30)
    {
        // Exploded creepers drop naught but charred flesh, which Minecraft doesn't have
        return;
    }
 
    unsigned int LootingLevel = 0;
    if (a_Killer != nullptr)
    {
        LootingLevel = a_Killer->GetEquippedWeapon().m_Enchantments.GetLevel(cEnchantments::enchLooting);
    }
    AddRandomDropItem(a_Drops, 0, 2 + LootingLevel, E_ITEM_GUNPOWDER);
 
    // If the creeper was killed by a skeleton, add a random music disc drop:
    if (
        (a_Killer != nullptr) &&
        a_Killer->IsProjectile() &&
        ((static_cast<cProjectileEntity *>(a_Killer))->GetCreatorUniqueID() != cEntity::INVALID_ID))
    {
        auto ProjectileCreatorCallback = [](cEntity & a_Entity)
            {
                return (
                    a_Entity.IsMob() &&
                    ((static_cast<cMonster &>(a_Entity)).GetMobType() == mtSkeleton)
                );
            };
 
        if (GetWorld()->DoWithEntityByID(static_cast<cProjectileEntity *>(a_Killer)->GetCreatorUniqueID(), ProjectileCreatorCallback))
        {
            AddRandomDropItem(a_Drops, 1, 1, static_cast<short>(m_World->GetTickRandomNumber(11) + E_ITEM_FIRST_DISC));
        }
    }
}
 
 
 
 
 
bool cCreeper::DoTakeDamage(TakeDamageInfo & a_TDI)
{
    if (!Super::DoTakeDamage(a_TDI))
    {
        return false;
    }
 
    if (a_TDI.DamageType == dtLightning)
    {
        m_bIsCharged = true;
    }
 
    m_World->BroadcastEntityMetadata(*this);
    return true;
}
 
 
 
 
 
bool cCreeper::Attack(std::chrono::milliseconds a_Dt)
{
    UNUSED(a_Dt);
 
    if (!m_bIsBlowing)
    {
        m_World->BroadcastSoundEffect("entity.creeper.primed", GetPosition(), 1.f, (0.75f + (static_cast<float>((GetUniqueID() * 23) % 32)) / 64));
        m_bIsBlowing = true;
        m_World->BroadcastEntityMetadata(*this);
 
        return true;
    }
    return false;
}
 
 
 
 
 
void cCreeper::OnRightClicked(cPlayer & a_Player)
{
    Super::OnRightClicked(a_Player);
 
    if ((a_Player.GetEquippedItem().m_ItemType == E_ITEM_FLINT_AND_STEEL))
    {
        if (!a_Player.IsGameModeCreative())
        {
            a_Player.UseEquippedItem();
        }
        m_World->BroadcastSoundEffect("entity.creeper.primed", GetPosition(), 1.f, (0.75f + (static_cast<float>((GetUniqueID() * 23) % 32)) / 64));
        m_bIsBlowing = true;
        m_World->BroadcastEntityMetadata(*this);
        m_BurnedWithFlintAndSteel = true;
    }
}