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#pragma once
#include "../BlockArea.h"
#include "../Entities/Player.h"
#include "Mixins.h"
class cBlockChestHandler final :
public cYawRotator<cClearMetaOnDrop<cBlockEntityHandler>, 0x07, 0x03, 0x04, 0x02, 0x05>
{
using Super = cYawRotator<cClearMetaOnDrop<cBlockEntityHandler>, 0x07, 0x03, 0x04, 0x02, 0x05>;
public:
using Super::Super;
/** Translates player yaw when placing a chest into the chest block metadata. Valid for single chests only */
static NIBBLETYPE PlayerYawToMetaData(double a_Yaw)
{
a_Yaw += 90 + 45; // So its not aligned with axis
if (a_Yaw > 360.f)
{
a_Yaw -= 360.f;
}
if ((a_Yaw >= 0.f) && (a_Yaw < 90.f))
{
return 0x04;
}
else if ((a_Yaw >= 180) && (a_Yaw < 270))
{
return 0x05;
}
else if ((a_Yaw >= 90) && (a_Yaw < 180))
{
return 0x02;
}
else
{
return 0x03;
}
}
private:
virtual bool GetPlacementBlockTypeMeta(
cChunkInterface & a_ChunkInterface,
cPlayer & a_Player,
const Vector3i a_PlacedBlockPos,
eBlockFace a_ClickedBlockFace,
const Vector3i a_CursorPos,
BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
) const override
{
// Cannot place right next to double-chest:
if (!CanBeAt(a_ChunkInterface, a_PlacedBlockPos))
{
// Yup, cannot form a triple-chest, refuse:
return false;
}
// Try to read double-chest information:
cBlockArea Area;
if (!Area.Read(a_ChunkInterface, a_PlacedBlockPos - Vector3i(1, 0, 1), a_PlacedBlockPos + Vector3i(1, 0, 1)))
{
return false;
}
// Get meta as if this was a single-chest:
if (!Super::GetPlacementBlockTypeMeta(a_ChunkInterface, a_Player, a_PlacedBlockPos, a_ClickedBlockFace, a_CursorPos, a_BlockType, a_BlockMeta))
{
return false;
}
// Check if this forms a doublechest, if so, need to adjust the meta:
double yaw = a_Player.GetYaw();
if (
(Area.GetRelBlockType(0, 0, 1) == m_BlockType) ||
(Area.GetRelBlockType(2, 0, 1) == m_BlockType)
)
{
a_BlockMeta = ((yaw >= -90) && (yaw < 90)) ? 2 : 3;
return true;
}
if (
(Area.GetRelBlockType(1, 0, 0) == m_BlockType) ||
(Area.GetRelBlockType(1, 0, 2) == m_BlockType)
)
{
a_BlockMeta = (yaw < 0) ? 4 : 5;
return true;
}
return true;
}
virtual bool CanBeAt(cChunkInterface & a_ChunkInterface, const Vector3i a_RelPos, const cChunk & a_Chunk) const override
{
auto BlockPos = a_Chunk.RelativeToAbsolute(a_RelPos);
return CanBeAt(a_ChunkInterface, BlockPos);
}
bool CanBeAt(cChunkInterface & a_ChunkInterface, const Vector3i a_BlockPos) const
{
cBlockArea Area;
if (!Area.Read(a_ChunkInterface, a_BlockPos - Vector3i(2, 0, 2), a_BlockPos + Vector3i(2, 0, 2)))
{
// Cannot read the surroundings, probably at the edge of loaded chunks. Disallow.
return false;
}
int NumChestNeighbors = 0;
if (Area.GetRelBlockType(1, 0, 2) == m_BlockType)
{
if (
(Area.GetRelBlockType(0, 0, 2) == m_BlockType) ||
(Area.GetRelBlockType(1, 0, 1) == m_BlockType) ||
(Area.GetRelBlockType(1, 0, 3) == m_BlockType)
)
{
// Already a doublechest neighbor, disallow:
return false;
}
NumChestNeighbors += 1;
}
if (Area.GetRelBlockType(3, 0, 2) == m_BlockType)
{
if (
(Area.GetRelBlockType(4, 0, 2) == m_BlockType) ||
(Area.GetRelBlockType(3, 0, 1) == m_BlockType) ||
(Area.GetRelBlockType(3, 0, 3) == m_BlockType)
)
{
// Already a doublechest neighbor, disallow:
return false;
}
NumChestNeighbors += 1;
}
if (Area.GetRelBlockType(2, 0, 1) == m_BlockType)
{
if (
(Area.GetRelBlockType(2, 0, 0) == m_BlockType) ||
(Area.GetRelBlockType(1, 0, 1) == m_BlockType) ||
(Area.GetRelBlockType(3, 0, 1) == m_BlockType)
)
{
// Already a doublechest neighbor, disallow:
return false;
}
NumChestNeighbors += 1;
}
if (Area.GetRelBlockType(2, 0, 3) == m_BlockType)
{
if (
(Area.GetRelBlockType(2, 0, 4) == m_BlockType) ||
(Area.GetRelBlockType(1, 0, 3) == m_BlockType) ||
(Area.GetRelBlockType(3, 0, 3) == m_BlockType)
)
{
// Already a doublechest neighbor, disallow:
return false;
}
NumChestNeighbors += 1;
}
return (NumChestNeighbors < 2);
}
/** If there's a chest in the a_Area in the specified coords, modifies its meta to a_NewMeta and returns true. */
bool CheckAndAdjustNeighbor(cChunkInterface & a_ChunkInterface, const cBlockArea & a_Area, int a_RelX, int a_RelZ, NIBBLETYPE a_NewMeta) const
{
if (a_Area.GetRelBlockType(a_RelX, 0, a_RelZ) != m_BlockType)
{
return false;
}
a_ChunkInterface.SetBlockMeta(a_Area.GetOriginX() + a_RelX, a_Area.GetOriginY(), a_Area.GetOriginZ() + a_RelZ, a_NewMeta);
return true;
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
{
UNUSED(a_Meta);
return 13;
}
} ;
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