669 lines
15 KiB
C++
669 lines
15 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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cHopperEntity::cHopperEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World) :
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super(E_BLOCK_HOPPER, a_BlockX, a_BlockY, a_BlockZ, ContentsWidth, ContentsHeight, a_World),
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m_LastMoveItemsInTick(0),
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m_LastMoveItemsOutTick(0)
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{
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}
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bool cHopperEntity::GetOutputBlockPos(NIBBLETYPE a_BlockMeta, int & a_OutputX, int & a_OutputY, int & a_OutputZ)
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{
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a_OutputX = m_PosX;
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a_OutputY = m_PosY;
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a_OutputZ = m_PosZ;
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switch (a_BlockMeta)
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{
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case E_META_HOPPER_FACING_XM: a_OutputX--; return true;
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case E_META_HOPPER_FACING_XP: a_OutputX++; return true;
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case E_META_HOPPER_FACING_YM: a_OutputY--; return true;
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case E_META_HOPPER_FACING_ZM: a_OutputZ--; return true;
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case E_META_HOPPER_FACING_ZP: a_OutputZ++; return true;
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default:
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{
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// Not attached
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return false;
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}
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}
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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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Int64 CurrentTick = a_Chunk.GetWorld()->GetWorldAge();
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bool res = false;
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res = MoveItemsIn (a_Chunk, CurrentTick) || res;
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res = MovePickupsIn(a_Chunk, CurrentTick) || res;
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res = MoveItemsOut (a_Chunk, CurrentTick) || res;
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return res;
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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 rclked
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UNUSED(a_Client);
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}
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void cHopperEntity::UsedBy(cPlayer * a_Player)
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{
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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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// This is rather a hack
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// Instead of marking the chunk as dirty upon chest contents change, we mark it dirty now
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// We cannot properly detect contents change, but such a change doesn't happen without a player opening the chest first.
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// The few false positives aren't much to worry about
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int ChunkX, ChunkZ;
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cChunkDef::BlockToChunk(m_PosX, m_PosZ, ChunkX, ChunkZ);
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m_World->MarkChunkDirty(ChunkX, ChunkZ);
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}
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void cHopperEntity::OpenNewWindow(void)
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{
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OpenWindow(new cHopperWindow(m_PosX, m_PosY, m_PosZ, this));
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}
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bool cHopperEntity::MoveItemsIn(cChunk & a_Chunk, Int64 a_CurrentTick)
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{
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if (m_PosY >= 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(m_RelX, m_PosY + 1, m_RelZ))
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{
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case E_BLOCK_TRAPPED_CHEST:
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case E_BLOCK_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_LIT_FURNACE:
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case E_BLOCK_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(m_PosX, m_PosY + 1, m_PosZ)));
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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, Int64 a_CurrentTick)
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{
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UNUSED(a_CurrentTick);
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class cHopperPickupSearchCallback :
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public cEntityCallback
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{
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public:
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cHopperPickupSearchCallback(const 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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virtual bool Item(cEntity * a_Entity) override
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{
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ASSERT(a_Entity != nullptr);
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if (!a_Entity->IsPickup() || a_Entity->IsDestroyed())
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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, Int64 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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int OutX, OutY, OutZ;
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NIBBLETYPE Meta = a_Chunk.GetMeta(m_RelX, m_PosY, m_RelZ);
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if (!GetOutputBlockPos(Meta, OutX, OutY, OutZ))
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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 (OutY < 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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int OutRelX = OutX - a_Chunk.GetPosX() * cChunkDef::Width;
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int OutRelZ = OutZ - a_Chunk.GetPosZ() * cChunkDef::Width;
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cChunk * DestChunk = a_Chunk.GetRelNeighborChunkAdjustCoords(OutRelX, OutRelZ);
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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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switch (DestChunk->GetBlock(OutRelX, OutY, OutRelZ))
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{
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case E_BLOCK_TRAPPED_CHEST:
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case E_BLOCK_CHEST:
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{
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// Chests have special handling because of double-chests
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res = MoveItemsToChest(*DestChunk, OutX, OutY, OutZ);
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break;
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}
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case E_BLOCK_LIT_FURNACE:
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case E_BLOCK_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, OutX, OutY, OutZ, 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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cBlockEntityWithItems * BlockEntity = static_cast<cBlockEntityWithItems *>(DestChunk->GetBlockEntity(OutX, OutY, OutZ));
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if (BlockEntity == nullptr)
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{
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LOGWARNING("%s: A block entity was not found where expected at {%d, %d, %d}", __FUNCTION__, OutX, OutY, OutZ);
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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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cChestEntity * MainChest = static_cast<cChestEntity *>(a_Chunk.GetBlockEntity(m_PosX, m_PosY + 1, m_PosZ));
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if (MainChest == nullptr)
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{
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LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, m_PosX, m_PosY + 1, m_PosZ);
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return false;
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}
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if (MoveItemsFromGrid(*MainChest))
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{
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// Moved the item from the chest directly above the hopper
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return true;
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}
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// Check if the chest is a double-chest (chest directly above was empty), if so, try to move from there:
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static const struct
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{
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int x, z;
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}
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Coords [] =
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{
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{1, 0},
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{-1, 0},
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{0, 1},
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{0, -1},
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} ;
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for (size_t i = 0; i < ARRAYCOUNT(Coords); i++)
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{
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int x = m_RelX + Coords[i].x;
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int z = m_RelZ + Coords[i].z;
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cChunk * Neighbor = a_Chunk.GetRelNeighborChunkAdjustCoords(x, z);
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if (Neighbor == nullptr)
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{
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continue;
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}
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BLOCKTYPE Block = Neighbor->GetBlock(x, m_PosY + 1, z);
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if (Block != MainChest->GetBlockType())
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{
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// Not the same kind of chest
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continue;
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}
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cChestEntity * SideChest = static_cast<cChestEntity *>(Neighbor->GetBlockEntity(m_PosX + Coords[i].x, m_PosY + 1, m_PosZ + Coords[i].z));
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if (SideChest == nullptr)
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{
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LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, m_PosX + Coords[i].x, m_PosY + 1, m_PosZ + Coords[i].z);
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}
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else
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{
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if (MoveItemsFromGrid(*SideChest))
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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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// The chest was single and nothing could be moved
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return false;
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}
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bool cHopperEntity::MoveItemsFromFurnace(cChunk & a_Chunk)
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{
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cFurnaceEntity * Furnace = static_cast<cFurnaceEntity *>(a_Chunk.GetBlockEntity(m_PosX, m_PosY + 1, m_PosZ));
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if (Furnace == nullptr)
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{
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LOGWARNING("%s: A furnace entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, m_PosX, m_PosY + 1, m_PosZ);
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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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cItemGrid & 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, int a_BlockX, int a_BlockY, int a_BlockZ)
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{
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// Try the chest directly connected to the hopper:
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cChestEntity * ConnectedChest = static_cast<cChestEntity *>(a_Chunk.GetBlockEntity(a_BlockX, a_BlockY, a_BlockZ));
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if (ConnectedChest == nullptr)
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{
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LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, a_BlockX, a_BlockY, a_BlockZ);
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return false;
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}
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if (MoveItemsToGrid(*ConnectedChest))
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{
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// Chest block directly connected was not full
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return true;
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}
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// Check if the chest is a double-chest (chest block directly connected was full), if so, try to move into the other half:
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static const struct
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{
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int x, z;
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}
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Coords [] =
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{
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{1, 0},
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{-1, 0},
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{0, 1},
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{0, -1},
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} ;
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int RelX = a_BlockX - a_Chunk.GetPosX() * cChunkDef::Width;
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int RelZ = a_BlockZ - a_Chunk.GetPosZ() * cChunkDef::Width;
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for (size_t i = 0; i < ARRAYCOUNT(Coords); i++)
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{
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int x = RelX + Coords[i].x;
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int z = RelZ + Coords[i].z;
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cChunk * Neighbor = a_Chunk.GetRelNeighborChunkAdjustCoords(x, z);
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if (Neighbor == nullptr)
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{
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continue;
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}
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BLOCKTYPE Block = Neighbor->GetBlock(x, a_BlockY, z);
|
|
if (Block != ConnectedChest->GetBlockType())
|
|
{
|
|
// Not the same kind of chest
|
|
continue;
|
|
}
|
|
|
|
cChestEntity * Chest = static_cast<cChestEntity *>(Neighbor->GetBlockEntity(a_BlockX + Coords[i].x, a_BlockY, a_BlockZ + Coords[i].z));
|
|
if (Chest == nullptr)
|
|
{
|
|
LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d} (%d, %d)", __FUNCTION__, a_BlockX + Coords[i].x, a_BlockY, a_BlockZ + Coords[i].z, x, z);
|
|
continue;
|
|
}
|
|
if (MoveItemsToGrid(*Chest))
|
|
{
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// The chest was single and nothing could be moved
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool cHopperEntity::MoveItemsToFurnace(cChunk & a_Chunk, int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_HopperMeta)
|
|
{
|
|
cFurnaceEntity * Furnace = static_cast<cFurnaceEntity *>(a_Chunk.GetBlockEntity(a_BlockX, a_BlockY, a_BlockZ));
|
|
if (a_HopperMeta == E_META_HOPPER_FACING_YM)
|
|
{
|
|
// Feed the input slot of the furnace
|
|
return MoveItemsToSlot(*Furnace, cFurnaceEntity::fsInput);
|
|
}
|
|
else
|
|
{
|
|
// Feed the fuel slot of the furnace
|
|
return MoveItemsToSlot(*Furnace, cFurnaceEntity::fsFuel);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool cHopperEntity::MoveItemsToGrid(cBlockEntityWithItems & a_Entity)
|
|
{
|
|
// Iterate through our slots, try to move from each one:
|
|
int NumSlots = a_Entity.GetContents().GetNumSlots();
|
|
for (int i = 0; i < NumSlots; i++)
|
|
{
|
|
if (MoveItemsToSlot(a_Entity, i))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool cHopperEntity::MoveItemsToSlot(cBlockEntityWithItems & a_Entity, int a_DstSlotNum)
|
|
{
|
|
cItemGrid & Grid = a_Entity.GetContents();
|
|
if (Grid.IsSlotEmpty(a_DstSlotNum))
|
|
{
|
|
// The slot is empty, move the first non-empty slot from our contents:
|
|
for (int i = 0; i < ContentsWidth * ContentsHeight; i++)
|
|
{
|
|
if (!m_Contents.IsSlotEmpty(i))
|
|
{
|
|
if (cPluginManager::Get()->CallHookHopperPushingItem(*m_World, *this, i, a_Entity, a_DstSlotNum))
|
|
{
|
|
// A plugin disagrees with the move
|
|
continue;
|
|
}
|
|
Grid.SetSlot(a_DstSlotNum, m_Contents.GetSlot(i).CopyOne());
|
|
m_Contents.ChangeSlotCount(i, -1);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
// The slot is taken, try to top it up:
|
|
const cItem & DestSlot = Grid.GetSlot(a_DstSlotNum);
|
|
if (DestSlot.IsFullStack())
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|