8be1dd54bb
* Fixed issue #5166 Co-authored-by: 12xx12 <44411062+12xx12@users.noreply.github.com> Co-authored-by: Tiger Wang <ziwei.tiger@outlook.com>
602 lines
13 KiB
C++
602 lines
13 KiB
C++
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// HopperEntity.cpp
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// Implements the cHopperEntity representing a hopper block entity
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#include "Globals.h"
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#include "HopperEntity.h"
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#include "../Chunk.h"
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#include "../Entities/Player.h"
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#include "../Entities/Pickup.h"
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#include "../Bindings/PluginManager.h"
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#include "../UI/HopperWindow.h"
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#include "ChestEntity.h"
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#include "FurnaceEntity.h"
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// How many ticks at minimum between two item transfers to or from the hopper.
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#define TICKS_PER_TRANSFER 8_tick
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cHopperEntity::cHopperEntity(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Vector3i a_Pos, cWorld * a_World):
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Super(a_BlockType, a_BlockMeta, a_Pos, ContentsWidth, ContentsHeight, a_World),
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m_LastMoveItemsInTick(0),
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m_LastMoveItemsOutTick(0),
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m_Locked(false)
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{
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ASSERT(a_BlockType == E_BLOCK_HOPPER);
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}
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void cHopperEntity::SetLocked(bool a_Value)
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{
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m_Locked = a_Value;
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}
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std::pair<bool, Vector3i> cHopperEntity::GetOutputBlockPos(NIBBLETYPE a_BlockMeta)
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{
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auto pos = GetPos();
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switch (a_BlockMeta)
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{
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case E_META_HOPPER_FACING_XM: return {true, pos.addedX(-1)};
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case E_META_HOPPER_FACING_XP: return {true, pos.addedX( 1)};
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case E_META_HOPPER_FACING_YM: return {true, pos.addedY(-1)};
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case E_META_HOPPER_FACING_ZM: return {true, pos.addedZ(-1)};
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case E_META_HOPPER_FACING_ZP: return {true, pos.addedZ( 1)};
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default:
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{
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// Not attached
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return {false, pos};
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}
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}
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}
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void cHopperEntity::CopyFrom(const cBlockEntity & a_Src)
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{
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Super::CopyFrom(a_Src);
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auto & src = static_cast<const cHopperEntity &>(a_Src);
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m_LastMoveItemsInTick = src.m_LastMoveItemsInTick;
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m_LastMoveItemsOutTick = src.m_LastMoveItemsOutTick;
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}
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bool cHopperEntity::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
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{
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UNUSED(a_Dt);
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bool isDirty = false;
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if (!m_Locked)
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{
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const auto CurrentTick = a_Chunk.GetWorld()->GetWorldAge();
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isDirty = MoveItemsIn(a_Chunk, CurrentTick) || isDirty;
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isDirty = MovePickupsIn(a_Chunk) || isDirty;
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isDirty = MoveItemsOut(a_Chunk, CurrentTick) || isDirty;
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}
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return isDirty;
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}
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void cHopperEntity::SendTo(cClientHandle & a_Client)
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{
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// The hopper entity doesn't need anything sent to the client when it's created / gets in the viewdistance
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// All the actual handling is in the cWindow UI code that gets called when the hopper is right-clicked
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UNUSED(a_Client);
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}
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bool cHopperEntity::UsedBy(cPlayer * a_Player)
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{
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a_Player->GetStatistics().Custom[CustomStatistic::InspectHopper]++;
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// If the window is not created, open it anew:
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cWindow * Window = GetWindow();
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if (Window == nullptr)
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{
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OpenNewWindow();
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Window = GetWindow();
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}
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// Open the window for the player:
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if (Window != nullptr)
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{
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if (a_Player->GetWindow() != Window)
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{
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a_Player->OpenWindow(*Window);
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}
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}
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return true;
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}
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void cHopperEntity::OpenNewWindow(void)
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{
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OpenWindow(new cHopperWindow(this));
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}
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bool cHopperEntity::MoveItemsIn(cChunk & a_Chunk, const cTickTimeLong a_CurrentTick)
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{
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if (m_Pos.y >= cChunkDef::Height)
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{
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// This hopper is at the top of the world, no more blocks above
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return false;
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}
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if ((a_CurrentTick - m_LastMoveItemsInTick) < TICKS_PER_TRANSFER)
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{
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// Too early after the previous transfer
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return false;
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}
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// Try moving an item in:
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bool res = false;
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switch (a_Chunk.GetBlock(GetRelPos().addedY(1)))
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{
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case E_BLOCK_CHEST:
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case E_BLOCK_TRAPPED_CHEST:
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{
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// Chests have special handling because of double-chests
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res = MoveItemsFromChest(a_Chunk);
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break;
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}
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case E_BLOCK_FURNACE:
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case E_BLOCK_LIT_FURNACE:
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{
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// Furnaces have special handling because only the output and leftover fuel buckets shall be moved
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res = MoveItemsFromFurnace(a_Chunk);
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break;
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}
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case E_BLOCK_DISPENSER:
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case E_BLOCK_DROPPER:
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case E_BLOCK_HOPPER:
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{
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res = MoveItemsFromGrid(*static_cast<cBlockEntityWithItems *>(a_Chunk.GetBlockEntity(this->GetPos().addedY(1))));
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break;
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}
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}
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// If the item has been moved, reset the last tick:
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if (res)
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{
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m_LastMoveItemsInTick = a_CurrentTick;
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}
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return res;
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}
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bool cHopperEntity::MovePickupsIn(cChunk & a_Chunk)
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{
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class cHopperPickupSearchCallback
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{
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public:
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cHopperPickupSearchCallback(Vector3i a_Pos, cItemGrid & a_Contents) :
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m_Pos(a_Pos),
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m_bFoundPickupsAbove(false),
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m_Contents(a_Contents)
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{
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}
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bool operator () (cEntity & a_Entity)
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{
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if (!a_Entity.IsPickup())
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{
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return false;
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}
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Vector3f EntityPos = a_Entity.GetPosition();
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Vector3f BlockPos(m_Pos.x + 0.5f, static_cast<float>(m_Pos.y) + 1, m_Pos.z + 0.5f); // One block above hopper, and search from center outwards
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double Distance = (EntityPos - BlockPos).Length();
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if (Distance < 0.5)
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{
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if (TrySuckPickupIn(static_cast<cPickup &>(a_Entity)))
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{
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return false;
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}
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}
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return false;
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}
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bool TrySuckPickupIn(cPickup & a_Pickup)
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{
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cItem & Item = a_Pickup.GetItem();
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for (int i = 0; i < ContentsWidth * ContentsHeight; i++)
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{
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if (m_Contents.IsSlotEmpty(i))
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{
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m_bFoundPickupsAbove = true;
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m_Contents.SetSlot(i, Item);
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a_Pickup.Destroy(); // Kill pickup
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return true;
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}
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else if (m_Contents.GetSlot(i).IsEqual(Item) && !m_Contents.GetSlot(i).IsFullStack())
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{
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m_bFoundPickupsAbove = true;
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int PreviousCount = m_Contents.GetSlot(i).m_ItemCount;
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Item.m_ItemCount -= m_Contents.ChangeSlotCount(i, Item.m_ItemCount) - PreviousCount; // Set count to however many items were added
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if (Item.IsEmpty())
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{
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a_Pickup.Destroy(); // Kill pickup if all items were added
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}
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return true;
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}
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}
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return false;
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}
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bool FoundPickupsAbove(void) const
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{
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return m_bFoundPickupsAbove;
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}
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protected:
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Vector3i m_Pos;
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bool m_bFoundPickupsAbove;
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cItemGrid & m_Contents;
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};
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cHopperPickupSearchCallback HopperPickupSearchCallback(Vector3i(GetPosX(), GetPosY(), GetPosZ()), m_Contents);
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a_Chunk.ForEachEntity(HopperPickupSearchCallback);
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return HopperPickupSearchCallback.FoundPickupsAbove();
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}
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bool cHopperEntity::MoveItemsOut(cChunk & a_Chunk, const cTickTimeLong a_CurrentTick)
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{
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if ((a_CurrentTick - m_LastMoveItemsOutTick) < TICKS_PER_TRANSFER)
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{
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// Too early after the previous transfer
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return false;
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}
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// Get the coords of the block where to output items:
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auto meta = a_Chunk.GetMeta(GetRelPos());
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auto out = GetOutputBlockPos(meta);
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if (!out.first)
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{
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// Not attached to another container
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return false;
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}
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if (out.second.y < 0)
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{
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// Cannot output below the zero-th block level
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return false;
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}
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// Convert coords to relative:
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auto relCoord = cChunkDef::AbsoluteToRelative(out.second);
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auto destChunk = a_Chunk.GetRelNeighborChunkAdjustCoords(relCoord);
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if (destChunk == nullptr)
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{
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// The destination chunk has been unloaded, don't tick
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return false;
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}
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// Call proper moving function, based on the blocktype present at the coords:
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bool res = false;
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auto absCoord = destChunk->RelativeToAbsolute(relCoord);
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switch (destChunk->GetBlock(relCoord))
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{
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case E_BLOCK_CHEST:
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case E_BLOCK_TRAPPED_CHEST:
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{
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// Chests have special handling because of double-chests
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res = MoveItemsToChest(*destChunk, absCoord);
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break;
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}
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case E_BLOCK_FURNACE:
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case E_BLOCK_LIT_FURNACE:
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{
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// Furnaces have special handling because of the direction-to-slot relation
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res = MoveItemsToFurnace(*destChunk, absCoord, meta);
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break;
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}
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case E_BLOCK_DISPENSER:
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case E_BLOCK_DROPPER:
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case E_BLOCK_HOPPER:
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{
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auto blockEntity = static_cast<cBlockEntityWithItems *>(destChunk->GetBlockEntity(absCoord));
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if (blockEntity == nullptr)
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{
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FLOGWARNING("{0}: A block entity was not found where expected at {1}", __FUNCTION__, absCoord);
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return false;
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}
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res = MoveItemsToGrid(*blockEntity);
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break;
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}
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}
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// If the item has been moved, reset the last tick:
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if (res)
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{
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m_LastMoveItemsOutTick = a_CurrentTick;
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}
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return res;
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}
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bool cHopperEntity::MoveItemsFromChest(cChunk & a_Chunk)
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{
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const auto ConnectedBlockEntity = a_Chunk.GetBlockEntityRel(GetRelPos().addedY(1));
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if (ConnectedBlockEntity == nullptr)
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{
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return false;
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}
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const auto ConnectedChest = static_cast<cChestEntity *>(ConnectedBlockEntity);
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if (MoveItemsFromGrid(ConnectedChest->GetPrimaryChest()))
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{
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return true;
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}
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const auto SecondaryChest = ConnectedChest->GetSecondaryChest();
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return (SecondaryChest != nullptr) && MoveItemsFromGrid(*SecondaryChest);
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}
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bool cHopperEntity::MoveItemsFromFurnace(cChunk & a_Chunk)
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{
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auto furnace = static_cast<cFurnaceEntity *>(a_Chunk.GetBlockEntity(m_Pos.addedY(1)));
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if (furnace == nullptr)
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{
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FLOGWARNING("{0}: A furnace entity was not found where expected, at {1}", __FUNCTION__, m_Pos.addedY(1));
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return false;
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}
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// Try move from the output slot:
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if (MoveItemsFromSlot(*furnace, cFurnaceEntity::fsOutput))
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{
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cItem NewOutput(furnace->GetOutputSlot());
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furnace->SetOutputSlot(NewOutput.AddCount(-1));
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return true;
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}
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// No output moved, check if we can move an empty bucket out of the fuel slot:
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if (furnace->GetFuelSlot().m_ItemType == E_ITEM_BUCKET)
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{
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if (MoveItemsFromSlot(*furnace, cFurnaceEntity::fsFuel))
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{
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furnace->SetFuelSlot(cItem());
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return true;
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}
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}
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// Nothing can be moved
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return false;
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}
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bool cHopperEntity::MoveItemsFromGrid(cBlockEntityWithItems & a_Entity)
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{
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auto & Grid = a_Entity.GetContents();
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int NumSlots = Grid.GetNumSlots();
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for (int i = 0; i < NumSlots; i++)
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{
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if (Grid.IsSlotEmpty(i))
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{
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continue;
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}
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if (MoveItemsFromSlot(a_Entity, i))
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{
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Grid.ChangeSlotCount(i, -1);
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return true;
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}
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}
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return false;
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}
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bool cHopperEntity::MoveItemsFromSlot(cBlockEntityWithItems & a_Entity, int a_SlotNum)
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{
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cItem One(a_Entity.GetSlot(a_SlotNum).CopyOne());
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for (int i = 0; i < ContentsWidth * ContentsHeight; i++)
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{
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if (m_Contents.IsSlotEmpty(i))
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{
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if (cPluginManager::Get()->CallHookHopperPullingItem(*m_World, *this, i, a_Entity, a_SlotNum))
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{
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// Plugin disagrees with the move
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continue;
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}
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m_Contents.SetSlot(i, One);
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return true;
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}
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else if (m_Contents.GetSlot(i).IsEqual(One))
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{
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if (cPluginManager::Get()->CallHookHopperPullingItem(*m_World, *this, i, a_Entity, a_SlotNum))
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{
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// Plugin disagrees with the move
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continue;
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}
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auto PreviousCount = m_Contents.GetSlot(i).m_ItemCount;
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m_Contents.ChangeSlotCount(i, 1);
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if (PreviousCount + 1 == m_Contents.GetSlot(i).m_ItemCount)
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{
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// Successfully added a new item. (Failure condition consistutes: stack full)
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return true;
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}
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}
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}
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return false;
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}
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bool cHopperEntity::MoveItemsToChest(cChunk & a_Chunk, Vector3i a_Coords)
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{
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const auto ConnectedBlockEntity = a_Chunk.GetBlockEntity(a_Coords);
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if (ConnectedBlockEntity == nullptr)
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{
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return false;
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}
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const auto ConnectedChest = static_cast<cChestEntity *>(ConnectedBlockEntity);
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if (MoveItemsToGrid(ConnectedChest->GetPrimaryChest()))
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{
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return true;
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}
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const auto SecondaryChest = ConnectedChest->GetSecondaryChest();
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return (SecondaryChest != nullptr) && MoveItemsToGrid(*SecondaryChest);
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}
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bool cHopperEntity::MoveItemsToFurnace(cChunk & a_Chunk, Vector3i a_Coords, NIBBLETYPE a_HopperMeta)
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{
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auto furnace = static_cast<cFurnaceEntity *>(a_Chunk.GetBlockEntity(a_Coords));
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if (a_HopperMeta == E_META_HOPPER_FACING_YM)
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{
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// Feed the input slot of the furnace
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return MoveItemsToSlot(*furnace, cFurnaceEntity::fsInput);
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}
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else
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{
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// Feed the fuel slot of the furnace
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return MoveItemsToSlot(*furnace, cFurnaceEntity::fsFuel);
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}
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}
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bool cHopperEntity::MoveItemsToGrid(cBlockEntityWithItems & a_Entity)
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{
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// Iterate through our slots, try to move from each one:
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int NumSlots = a_Entity.GetContents().GetNumSlots();
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for (int i = 0; i < NumSlots; i++)
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{
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if (MoveItemsToSlot(a_Entity, i))
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{
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return true;
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}
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}
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return false;
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}
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bool cHopperEntity::MoveItemsToSlot(cBlockEntityWithItems & a_Entity, int a_DstSlotNum)
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{
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cItemGrid & Grid = a_Entity.GetContents();
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if (Grid.IsSlotEmpty(a_DstSlotNum))
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{
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// The slot is empty, move the first non-empty slot from our contents:
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for (int i = 0; i < ContentsWidth * ContentsHeight; i++)
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{
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if (!m_Contents.IsSlotEmpty(i))
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{
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if (cPluginManager::Get()->CallHookHopperPushingItem(*m_World, *this, i, a_Entity, a_DstSlotNum))
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{
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// A plugin disagrees with the move
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continue;
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}
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Grid.SetSlot(a_DstSlotNum, m_Contents.GetSlot(i).CopyOne());
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m_Contents.ChangeSlotCount(i, -1);
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return true;
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}
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}
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return false;
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}
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else
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{
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// The slot is taken, try to top it up:
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const cItem & DestSlot = Grid.GetSlot(a_DstSlotNum);
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if (DestSlot.IsFullStack())
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{
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return false;
|
|
}
|
|
for (int i = 0; i < ContentsWidth * ContentsHeight; i++)
|
|
{
|
|
if (m_Contents.GetSlot(i).IsEqual(DestSlot))
|
|
{
|
|
if (cPluginManager::Get()->CallHookHopperPushingItem(*m_World, *this, i, a_Entity, a_DstSlotNum))
|
|
{
|
|
// A plugin disagrees with the move
|
|
continue;
|
|
}
|
|
Grid.ChangeSlotCount(a_DstSlotNum, 1);
|
|
m_Contents.ChangeSlotCount(i, -1);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|