DropSpenserEntity.cpp

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// DropSpenserEntity.cpp

// Declares the cDropSpenserEntity class representing a common ancestor to the cDispenserEntity and cDropperEntity
// The dropper and dispenser only needs to override the DropSpenseFromSlot() function to provide the specific item behavior

#include "Globals.h"
#include "DropSpenserEntity.h"
#include "../EffectID.h"
#include "../Entities/Player.h"
#include "../Chunk.h"
#include "../UI/DropSpenserWindow.h"





cDropSpenserEntity::cDropSpenserEntity(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos, cWorld * a_World):
    super(a_BlockType, a_BlockMeta, a_Pos, ContentsWidth, ContentsHeight, a_World),
    m_ShouldDropSpense(false)
{
}





cDropSpenserEntity::~cDropSpenserEntity()
{
    // Tell window its owner is destroyed
    cWindow * Window = GetWindow();
    if (Window != nullptr)
    {
        Window->OwnerDestroyed();
    }
}





void cDropSpenserEntity::AddDropSpenserDir(Vector3i & a_RelCoord, NIBBLETYPE a_Direction)
{
    switch (a_Direction & E_META_DROPSPENSER_FACING_MASK)
    {
        case E_META_DROPSPENSER_FACING_YM: a_RelCoord.y--; return;
        case E_META_DROPSPENSER_FACING_YP: a_RelCoord.y++; return;
        case E_META_DROPSPENSER_FACING_ZM: a_RelCoord.z--; return;
        case E_META_DROPSPENSER_FACING_ZP: a_RelCoord.z++; return;
        case E_META_DROPSPENSER_FACING_XM: a_RelCoord.x--; return;
        case E_META_DROPSPENSER_FACING_XP: a_RelCoord.x++; return;
    }
    LOGWARNING("%s: Unhandled direction: %d", __FUNCTION__, a_Direction);
    return;
}





void cDropSpenserEntity::DropSpense(cChunk & a_Chunk)
{
    // Pick one of the occupied slots:
    int OccupiedSlots[9];
    int SlotsCnt = 0;
    for (int i = m_Contents.GetNumSlots() - 1; i >= 0; i--)
    {
        if (!m_Contents.GetSlot(i).IsEmpty())
        {
            OccupiedSlots[SlotsCnt] = i;
            SlotsCnt++;
        }
    }  // for i - m_Contents[]

    if (SlotsCnt == 0)
    {
        // Nothing in the dropspenser, play the click sound
        m_World->BroadcastSoundEffect("block.dispenser.fail", m_Pos, 1.0f, 1.2f);
        return;
    }

    int RandomSlot =    m_World->GetTickRandomNumber(SlotsCnt - 1);

    // DropSpense the item, using the specialized behavior in the subclasses:
    DropSpenseFromSlot(a_Chunk, OccupiedSlots[RandomSlot]);

    // Broadcast a smoke and click effects:
    NIBBLETYPE Meta = a_Chunk.GetMeta(GetRelPos());
    int SmokeDir = 0;
    switch (Meta & E_META_DROPSPENSER_FACING_MASK)
    {
        case E_META_DROPSPENSER_FACING_YP: SmokeDir = static_cast<int>(SmokeDirection::CENTRE); break;  // YP & YM don't have associated smoke dirs, just do 4 (centre of block)
        case E_META_DROPSPENSER_FACING_YM: SmokeDir = static_cast<int>(SmokeDirection::CENTRE); break;
        case E_META_DROPSPENSER_FACING_XM: SmokeDir = static_cast<int>(SmokeDirection::EAST); break;
        case E_META_DROPSPENSER_FACING_XP: SmokeDir = static_cast<int>(SmokeDirection::WEST); break;
        case E_META_DROPSPENSER_FACING_ZM: SmokeDir = static_cast<int>(SmokeDirection::SOUTH); break;
        case E_META_DROPSPENSER_FACING_ZP: SmokeDir = static_cast<int>(SmokeDirection::NORTH); break;
    }
    m_World->BroadcastSoundParticleEffect(EffectID::PARTICLE_SMOKE, GetPos(), SmokeDir);
    m_World->BroadcastSoundEffect("block.dispenser.dispense", m_Pos, 1.0f, 1.0f);
}





void cDropSpenserEntity::Activate(void)
{
    m_ShouldDropSpense = true;
}





void cDropSpenserEntity::CopyFrom(const cBlockEntity & a_Src)
{
    super::CopyFrom(a_Src);
    auto & src = static_cast<const cDropSpenserEntity &>(a_Src);
    m_Contents.CopyFrom(src.m_Contents);
    m_ShouldDropSpense = src.m_ShouldDropSpense;
}





bool cDropSpenserEntity::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
{
    UNUSED(a_Dt);
    if (!m_ShouldDropSpense)
    {
        return false;
    }

    m_ShouldDropSpense = false;
    DropSpense(a_Chunk);
    return true;
}





void cDropSpenserEntity::SendTo(cClientHandle & a_Client)
{
    // Nothing needs to be sent
    UNUSED(a_Client);
}





bool cDropSpenserEntity::UsedBy(cPlayer * a_Player)
{
    cWindow * Window = GetWindow();
    if (Window == nullptr)
    {
        OpenWindow(new cDropSpenserWindow(this));
        Window = GetWindow();
    }

    if (Window != nullptr)
    {
        if (a_Player->GetWindow() != Window)
        {
            a_Player->OpenWindow(*Window);
        }
    }
    return true;
}





void cDropSpenserEntity::DropFromSlot(cChunk & a_Chunk, int a_SlotNum)
{
    Vector3i dispCoord(m_Pos);
    auto Meta = a_Chunk.GetMeta(GetRelPos());
    AddDropSpenserDir(dispCoord, Meta);

    cItems Pickups;
    Pickups.push_back(m_Contents.RemoveOneItem(a_SlotNum));

    const int PickupSpeed = GetRandomProvider().RandInt(2, 6);  // At least 2, at most 6
    int PickupSpeedX = 0, PickupSpeedY = 0, PickupSpeedZ = 0;
    switch (Meta & E_META_DROPSPENSER_FACING_MASK)
    {
        case E_META_DROPSPENSER_FACING_YP: PickupSpeedY =  PickupSpeed; break;
        case E_META_DROPSPENSER_FACING_YM: PickupSpeedY = -PickupSpeed; break;
        case E_META_DROPSPENSER_FACING_XM: PickupSpeedX = -PickupSpeed; break;
        case E_META_DROPSPENSER_FACING_XP: PickupSpeedX =  PickupSpeed; break;
        case E_META_DROPSPENSER_FACING_ZM: PickupSpeedZ = -PickupSpeed; break;
        case E_META_DROPSPENSER_FACING_ZP: PickupSpeedZ =  PickupSpeed; break;
    }

    double MicroX, MicroY, MicroZ;
    MicroX = dispCoord.x + 0.5;
    MicroY = dispCoord.y + 0.4;  // Slightly less than half, to accomodate actual texture hole on DropSpenser
    MicroZ = dispCoord.z + 0.5;


    m_World->SpawnItemPickups(Pickups, MicroX, MicroY, MicroZ, PickupSpeedX, PickupSpeedY, PickupSpeedZ);
}