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cuberite-2a/source/BlockEntities/DispenserEntity.cpp
madmaxoft ebb2ccaa26 Removed BlockEntities' constructors from the API.
Plugins shouldn't construct block entities, rather, they will query them either from the cWorld (while playing), or from cChunkDesc (while generating).
2013-11-15 09:49:56 +01:00

216 lines
5.4 KiB
C++

#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "DispenserEntity.h"
#include "../Entities/Player.h"
#include "../Simulator/FluidSimulator.h"
#include "../Chunk.h"
cDispenserEntity::cDispenserEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World) :
super(E_BLOCK_DISPENSER, a_BlockX, a_BlockY, a_BlockZ, a_World)
{
SetBlockEntity(this); // cBlockEntityWindowOwner
}
void cDispenserEntity::DropSpenseFromSlot(cChunk & a_Chunk, int a_SlotNum)
{
int DispX = m_RelX;
int DispY = m_PosY;
int DispZ = m_RelZ;
NIBBLETYPE Meta = a_Chunk.GetMeta(m_RelX, m_PosY, m_RelZ);
AddDropSpenserDir(DispX, DispY, DispZ, Meta);
cChunk * DispChunk = a_Chunk.GetRelNeighborChunkAdjustCoords(DispX, DispZ);
if (DispChunk == NULL)
{
// Would dispense into / interact with a non-loaded chunk, ignore the tick
return;
}
BLOCKTYPE DispBlock = DispChunk->GetBlock(DispX, DispY, DispZ);
// Dispense the item:
switch (m_Contents.GetSlot(a_SlotNum).m_ItemType)
{
case E_ITEM_BUCKET:
{
LOGD("Dispensing empty bucket in slot %d; DispBlock is \"%s\" (%d).", a_SlotNum, ItemTypeToString(DispBlock).c_str(), DispBlock);
switch (DispBlock)
{
case E_BLOCK_STATIONARY_WATER:
case E_BLOCK_WATER:
{
if (ScoopUpLiquid(a_SlotNum, E_ITEM_WATER_BUCKET))
{
DispChunk->SetBlock(DispX, DispY, DispZ, E_BLOCK_AIR, 0);
}
break;
}
case E_BLOCK_STATIONARY_LAVA:
case E_BLOCK_LAVA:
{
if (ScoopUpLiquid(a_SlotNum, E_ITEM_LAVA_BUCKET))
{
DispChunk->SetBlock(DispX, DispY, DispZ, E_BLOCK_AIR, 0);
}
break;
}
default:
{
DropFromSlot(a_Chunk, a_SlotNum);
break;
}
}
break;
} // E_ITEM_BUCKET
case E_ITEM_WATER_BUCKET:
{
LOGD("Dispensing water bucket in slot %d; DispBlock is \"%s\" (%d).", a_SlotNum, ItemTypeToString(DispBlock).c_str(), DispBlock);
if (EmptyLiquidBucket(DispBlock, a_SlotNum))
{
DispChunk->SetBlock(DispX, DispY, DispZ, E_BLOCK_WATER, 0);
}
else
{
DropFromSlot(a_Chunk, a_SlotNum);
}
break;
}
case E_ITEM_LAVA_BUCKET:
{
LOGD("Dispensing lava bucket in slot %d; DispBlock is \"%s\" (%d).", a_SlotNum, ItemTypeToString(DispBlock).c_str(), DispBlock);
if (EmptyLiquidBucket(DispBlock, a_SlotNum))
{
DispChunk->SetBlock(DispX, DispY, DispZ, E_BLOCK_LAVA, 0);
}
else
{
DropFromSlot(a_Chunk, a_SlotNum);
}
break;
}
case E_ITEM_SPAWN_EGG:
{
double MobX = 0.5 + (DispX + DispChunk->GetPosX() * cChunkDef::Width);
double MobZ = 0.5 + (DispZ + DispChunk->GetPosZ() * cChunkDef::Width);
if (m_World->SpawnMob(MobX, DispY, MobZ, (cMonster::eType)m_Contents.GetSlot(a_SlotNum).m_ItemDamage) >= 0)
{
m_Contents.ChangeSlotCount(a_SlotNum, -1);
}
break;
}
case E_BLOCK_TNT:
{
// Spawn a primed TNT entity, if space allows:
if (DispChunk->GetBlock(DispX, DispY, DispZ) == E_BLOCK_AIR)
{
double TNTX = 0.5 + (DispX + DispChunk->GetPosX() * cChunkDef::Width);
double TNTZ = 0.5 + (DispZ + DispChunk->GetPosZ() * cChunkDef::Width);
m_World->SpawnPrimedTNT(TNTX, DispY + 0.5, TNTZ, 4, 0); // 4 seconds fuse, no initial velocity
m_Contents.ChangeSlotCount(a_SlotNum, -1);
}
break;
}
case E_ITEM_FLINT_AND_STEEL:
{
// Spawn fire if the block in front is air.
if (DispChunk->GetBlock(DispX, DispY, DispZ) == E_BLOCK_AIR)
{
DispChunk->SetBlock(DispX, DispY, DispZ, E_BLOCK_FIRE, 0);
m_Contents.SetSlot(a_SlotNum, m_Contents.GetSlot(a_SlotNum).m_ItemType, m_Contents.GetSlot(a_SlotNum).m_ItemCount, m_Contents.GetSlot(a_SlotNum).m_ItemDamage + 1);
// If the durability has run out destroy the item.
if (m_Contents.GetSlot(a_SlotNum).m_ItemDamage > 64)
{
m_Contents.ChangeSlotCount(a_SlotNum, -1);
}
}
break;
}
default:
{
DropFromSlot(a_Chunk, a_SlotNum);
break;
}
} // switch (ItemType)
}
bool cDispenserEntity::ScoopUpLiquid(int a_SlotNum, short a_BucketItemType)
{
cItem LiquidBucket(a_BucketItemType, 1);
if (m_Contents.GetSlot(a_SlotNum).m_ItemCount == 1)
{
// Special case: replacing one empty bucket with one full bucket
m_Contents.SetSlot(a_SlotNum, LiquidBucket);
return true;
}
// There are stacked buckets at the selected slot, see if a full bucket will fit somewhere else
if (m_Contents.HowManyCanFit(LiquidBucket) < 1)
{
// Cannot fit into m_Contents
return false;
}
m_Contents.ChangeSlotCount(a_SlotNum, -1);
m_Contents.AddItem(LiquidBucket);
return true;
}
bool cDispenserEntity::EmptyLiquidBucket(BLOCKTYPE a_BlockInFront, int a_SlotNum)
{
if (
(a_BlockInFront != E_BLOCK_AIR) &&
!IsBlockLiquid(a_BlockInFront) &&
!cFluidSimulator::CanWashAway(a_BlockInFront)
)
{
// Not a suitable block in front
return false;
}
cItem EmptyBucket(E_ITEM_BUCKET, 1);
if (m_Contents.GetSlot(a_SlotNum).m_ItemCount == 1)
{
// Change the single full bucket present into a single empty bucket
m_Contents.SetSlot(a_SlotNum, EmptyBucket);
return true;
}
// There are full buckets stacked at this slot, check if we can fit in the empty bucket
if (m_Contents.HowManyCanFit(EmptyBucket) < 1)
{
// The empty bucket wouldn't fit into m_Contents
return false;
}
// The empty bucket fits in, remove one full bucket and add the empty one
m_Contents.ChangeSlotCount(a_SlotNum, -1);
m_Contents.AddItem(EmptyBucket);
return true;
}