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#pragma once
#include "ItemHandler.h"
#include "../World.h"
#include "../Simulator/FluidSimulator.h"
#include "../Blocks/BlockHandler.h"
#include "../LineBlockTracer.h"
class cItemBucketHandler :
public cItemHandler
{
public:
cItemBucketHandler(int a_ItemType) :
cItemHandler(a_ItemType)
{
}
virtual bool OnItemUse(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Dir) override
{
switch (m_ItemType)
{
case E_ITEM_BUCKET: return ScoopUpFluid(a_World, a_Player, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_Dir);
case E_ITEM_LAVA_BUCKET: return PlaceFluid (a_World, a_Player, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_Dir, E_BLOCK_LAVA);
case E_ITEM_WATER_BUCKET: return PlaceFluid (a_World, a_Player, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_Dir, E_BLOCK_WATER);
default:
{
ASSERT(!"Unhandled ItemType");
return false;
}
}
}
bool ScoopUpFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
{
if (a_BlockFace > 0)
{
return false;
}
Vector3i BlockPos;
GetBlockFromTrace(a_World, a_Player, BlockPos);
if (a_World->GetBlockMeta(BlockPos.x, BlockPos.y, BlockPos.z) != 0)
{
// Not a source block
return false;
}
BLOCKTYPE Block = a_World->GetBlock(BlockPos.x, BlockPos.y, BlockPos.z);
ENUM_ITEM_ID NewItem;
if (IsBlockWater(Block))
{
NewItem = E_ITEM_WATER_BUCKET;
}
else if (IsBlockLava(Block))
{
NewItem = E_ITEM_LAVA_BUCKET;
}
else
{
return false;
}
// Remove the bucket from the inventory
if (!a_Player->GetInventory().RemoveOneEquippedItem())
{
LOG("Clicked with an empty bucket, but cannot remove one from the inventory? WTF?");
ASSERT(!"Inventory bucket mismatch");
return true;
}
// Give new bucket, filled with fluid:
a_Player->GetInventory().AddItem(cItem(NewItem), true, true);
// Remove water / lava block
a_Player->GetWorld()->SetBlock(BlockPos.x, BlockPos.y, BlockPos.z, E_BLOCK_AIR, 0);
return true;
}
bool PlaceFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, BLOCKTYPE a_FluidBlock)
{
if (a_BlockFace < 0)
{
return false;
}
BLOCKTYPE CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ);
bool CanWashAway = cFluidSimulator::CanWashAway(CurrentBlock);
if (!CanWashAway)
{
// The block pointed at cannot be washed away, so put fluid on top of it / on its sides
AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace);
CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ);
}
if (
!CanWashAway &&
(CurrentBlock != E_BLOCK_AIR) &&
(CurrentBlock != E_BLOCK_WATER) &&
(CurrentBlock != E_BLOCK_STATIONARY_WATER) &&
(CurrentBlock != E_BLOCK_LAVA) &&
(CurrentBlock != E_BLOCK_STATIONARY_LAVA)
)
{
// Cannot place water here
return false;
}
if (a_Player->GetGameMode() != gmCreative)
{
// Remove fluid bucket, add empty bucket:
if (!a_Player->GetInventory().RemoveOneEquippedItem())
{
LOG("Clicked with a full bucket, but cannot remove one from the inventory? WTF?");
ASSERT(!"Inventory bucket mismatch");
return false;
}
cItem Item(E_ITEM_BUCKET, 1);
if (!a_Player->GetInventory().AddItem(Item,true,true))
{
return false;
}
}
// Wash away anything that was there prior to placing:
if (CanWashAway)
{
cBlockHandler * Handler = BlockHandler(CurrentBlock);
if (Handler->DoesDropOnUnsuitable())
{
Handler->DropBlock(a_World, a_Player, a_BlockX, a_BlockY, a_BlockZ);
}
}
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, a_FluidBlock, 0);
return true;
}
bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & BlockPos)
{
class cCallbacks :
public cBlockTracer::cCallbacks
{
public:
Vector3d Pos;
virtual bool OnNextBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, char a_EntryFace) override
{
if (a_BlockMeta != 0) // Even if it was a water block it would not be a source.
{
return false;
}
if ((IsBlockWater(a_BlockType)) || (IsBlockLava(a_BlockType)))
{
Pos = Vector3d(a_BlockX, a_BlockY, a_BlockZ);
return true;
}
return false;
}
} Callbacks;
cLineBlockTracer Tracer(*a_World, Callbacks);
Vector3d Start(a_Player->GetEyePosition() + a_Player->GetLookVector());
Vector3d End(a_Player->GetEyePosition() + a_Player->GetLookVector() * 5);
Tracer.Trace(Start.x, Start.y, Start.z, End.x, End.y, End.z);
BlockPos.Set((int) Callbacks.Pos.x, (int) Callbacks.Pos.y, (int) Callbacks.Pos.z);
return true;
}
};
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