2c3c1f1527
* Replaced cTracer usage with cLineBlockTracer. * Exported new cLineBlockTracer utility functions to Lua API.
281 lines
7.7 KiB
C++
281 lines
7.7 KiB
C++
|
|
#pragma once
|
|
|
|
#include "ItemHandler.h"
|
|
#include "../World.h"
|
|
#include "../Simulator/FluidSimulator.h"
|
|
#include "../Blocks/BlockHandler.h"
|
|
#include "../LineBlockTracer.h"
|
|
#include "../BlockInServerPluginInterface.h"
|
|
#include "../Blocks/ChunkInterface.h"
|
|
|
|
|
|
|
|
|
|
|
|
class cItemBucketHandler :
|
|
public cItemHandler
|
|
{
|
|
public:
|
|
cItemBucketHandler(int a_ItemType) :
|
|
cItemHandler(a_ItemType)
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
virtual bool OnItemUse(
|
|
cWorld * a_World, cPlayer * a_Player, cBlockPluginInterface & a_PluginInterface, const cItem & a_Item,
|
|
int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace
|
|
) override
|
|
{
|
|
switch (m_ItemType)
|
|
{
|
|
case E_ITEM_BUCKET: return ScoopUpFluid(a_World, a_Player, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace);
|
|
case E_ITEM_LAVA_BUCKET: return PlaceFluid (a_World, a_Player, a_PluginInterface, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, E_BLOCK_LAVA);
|
|
case E_ITEM_WATER_BUCKET: return PlaceFluid (a_World, a_Player, a_PluginInterface, a_Item, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, 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, eBlockFace a_BlockFace)
|
|
{
|
|
if (a_BlockFace != BLOCK_FACE_NONE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
Vector3i BlockPos;
|
|
if (!GetBlockFromTrace(a_World, a_Player, BlockPos))
|
|
{
|
|
return false; // Nothing in range.
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// Check to see if destination block is too far away
|
|
// Reach Distance Multiplayer = 5 Blocks
|
|
if ((BlockPos.x - a_Player->GetPosX() > 5) || (BlockPos.z - a_Player->GetPosZ() > 5))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Remove water / lava block (unless plugins disagree)
|
|
if (!a_Player->PlaceBlock(BlockPos.x, BlockPos.y, BlockPos.z, E_BLOCK_AIR, 0))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Give new bucket, filled with fluid when the gamemode is not creative:
|
|
if (!a_Player->IsGameModeCreative())
|
|
{
|
|
// 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;
|
|
}
|
|
if (a_Player->GetInventory().AddItem(cItem(NewItem)) != 1)
|
|
{
|
|
// The bucket didn't fit, toss it as a pickup:
|
|
a_Player->TossPickup(cItem(NewItem));
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
bool PlaceFluid(
|
|
cWorld * a_World, cPlayer * a_Player, cBlockPluginInterface & a_PluginInterface, const cItem & a_Item,
|
|
int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace, BLOCKTYPE a_FluidBlock
|
|
)
|
|
{
|
|
if (a_BlockFace != BLOCK_FACE_NONE)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
BLOCKTYPE CurrentBlockType;
|
|
NIBBLETYPE CurrentBlockMeta;
|
|
eBlockFace EntryFace;
|
|
Vector3i BlockPos;
|
|
if (!GetPlacementCoordsFromTrace(a_World, a_Player, BlockPos, CurrentBlockType, CurrentBlockMeta, EntryFace))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Check to see if destination block is too far away
|
|
// Reach Distance Multiplayer = 5 Blocks
|
|
if ((BlockPos.x - a_Player->GetPosX() > 5) || (BlockPos.z - a_Player->GetPosZ() > 5))
|
|
{
|
|
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))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Wash away anything that was there prior to placing:
|
|
if (cFluidSimulator::CanWashAway(CurrentBlockType))
|
|
{
|
|
if (a_PluginInterface.CallHookPlayerBreakingBlock(*a_Player, BlockPos.x, BlockPos.y, BlockPos.z, EntryFace, CurrentBlockType, CurrentBlockMeta))
|
|
{
|
|
// Plugin disagrees with the washing-away
|
|
return false;
|
|
}
|
|
|
|
cBlockHandler * Handler = BlockHandler(CurrentBlockType);
|
|
if (Handler->DoesDropOnUnsuitable())
|
|
{
|
|
cChunkInterface ChunkInterface(a_World->GetChunkMap());
|
|
Handler->DropBlock(ChunkInterface, *a_World, a_PluginInterface, a_Player, BlockPos.x, BlockPos.y, BlockPos.z);
|
|
}
|
|
a_PluginInterface.CallHookPlayerBrokenBlock(*a_Player, BlockPos.x, BlockPos.y, BlockPos.z, EntryFace, CurrentBlockType, CurrentBlockMeta);
|
|
}
|
|
|
|
// Place the actual fluid block:
|
|
return a_Player->PlaceBlock(BlockPos.x, BlockPos.y, BlockPos.z, a_FluidBlock, 0);
|
|
}
|
|
|
|
|
|
|
|
bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos)
|
|
{
|
|
class cCallbacks :
|
|
public cBlockTracer::cCallbacks
|
|
{
|
|
public:
|
|
Vector3i m_Pos;
|
|
bool m_HasHitFluid;
|
|
|
|
|
|
cCallbacks(void) :
|
|
m_HasHitFluid(false)
|
|
{
|
|
}
|
|
|
|
virtual bool OnNextBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, eBlockFace a_EntryFace) override
|
|
{
|
|
if (IsBlockWater(a_BlockType) || IsBlockLava(a_BlockType))
|
|
{
|
|
if (a_BlockMeta != 0) // GetBlockFromTrace is called for scooping up fluids; the hit block should be a source
|
|
{
|
|
return false;
|
|
}
|
|
m_HasHitFluid = true;
|
|
m_Pos.Set(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);
|
|
|
|
if (!Callbacks.m_HasHitFluid)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
|
|
a_BlockPos = Callbacks.m_Pos;
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
bool GetPlacementCoordsFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta, eBlockFace & a_BlockFace)
|
|
{
|
|
class cCallbacks :
|
|
public cBlockTracer::cCallbacks
|
|
{
|
|
public:
|
|
Vector3i m_Pos;
|
|
BLOCKTYPE m_ReplacedBlockType;
|
|
NIBBLETYPE m_ReplacedBlockMeta;
|
|
eBlockFace m_EntryFace;
|
|
|
|
virtual bool OnNextBlock(int a_CBBlockX, int a_CBBlockY, int a_CBBlockZ, BLOCKTYPE a_CBBlockType, NIBBLETYPE a_CBBlockMeta, eBlockFace a_CBEntryFace) override
|
|
{
|
|
if (a_CBBlockType != E_BLOCK_AIR)
|
|
{
|
|
m_ReplacedBlockType = a_CBBlockType;
|
|
m_ReplacedBlockMeta = a_CBBlockMeta;
|
|
m_EntryFace = static_cast<eBlockFace>(a_CBEntryFace);
|
|
if (!cFluidSimulator::CanWashAway(a_CBBlockType) && !IsBlockLiquid(a_CBBlockType))
|
|
{
|
|
AddFaceDirection(a_CBBlockX, a_CBBlockY, a_CBBlockZ, a_CBEntryFace); // Was an unwashawayable block, can't overwrite it!
|
|
}
|
|
m_Pos.Set(a_CBBlockX, a_CBBlockY, a_CBBlockZ); // (Block could be washed away, replace it)
|
|
return true; // Abort tracing
|
|
}
|
|
return false;
|
|
}
|
|
} Callbacks;
|
|
|
|
cLineBlockTracer Tracer(*a_World, Callbacks);
|
|
Vector3d Start(a_Player->GetEyePosition());
|
|
Vector3d End(a_Player->GetEyePosition() + a_Player->GetLookVector() * 5);
|
|
|
|
// cLineBlockTracer::Trace() returns true when whole line was traversed. By returning true from the callback when we hit something,
|
|
// we ensure that this never happens if liquid could be placed
|
|
// Use this to judge whether the position is valid
|
|
if (!Tracer.Trace(Start.x, Start.y, Start.z, End.x, End.y, End.z))
|
|
{
|
|
a_BlockPos = Callbacks.m_Pos;
|
|
a_BlockType = Callbacks.m_ReplacedBlockType;
|
|
a_BlockMeta = Callbacks.m_ReplacedBlockMeta;
|
|
a_BlockFace = Callbacks.m_EntryFace;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
};
|