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#pragma once
#include "BlockHandler.h"
#include "../Chunk.h"
#include "ChunkInterface.h"
#include "Mixins.h"
class cBlockTorchBaseHandler :
public cMetaRotator<cBlockHandler, 0x7, 0x4, 0x1, 0x3, 0x2>
{
using Super = cMetaRotator<cBlockHandler, 0x7, 0x4, 0x1, 0x3, 0x2>;
public:
using Super::Super;
/** Returns true if the torch can be placed on the specified block's face. */
static bool CanBePlacedOn(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, eBlockFace a_BlockFace)
{
switch (a_BlockType)
{
case E_BLOCK_END_PORTAL_FRAME:
case E_BLOCK_SOULSAND:
{
// Exceptional vanilla behaviour
return true;
}
case E_BLOCK_GLASS:
case E_BLOCK_STAINED_GLASS:
case E_BLOCK_FENCE:
case E_BLOCK_NETHER_BRICK_FENCE:
case E_BLOCK_SPRUCE_FENCE:
case E_BLOCK_BIRCH_FENCE:
case E_BLOCK_JUNGLE_FENCE:
case E_BLOCK_DARK_OAK_FENCE:
case E_BLOCK_ACACIA_FENCE:
case E_BLOCK_COBBLESTONE_WALL:
{
// Torches can only be placed on top of these blocks
return (a_BlockFace == BLOCK_FACE_YP);
}
case E_BLOCK_STONE_SLAB:
case E_BLOCK_WOODEN_SLAB:
{
// Toches can be placed only on the top of top-half-slabs
return ((a_BlockFace == BLOCK_FACE_YP) && ((a_BlockMeta & 0x08) == 0x08));
}
case E_BLOCK_OAK_WOOD_STAIRS:
case E_BLOCK_COBBLESTONE_STAIRS:
case E_BLOCK_BRICK_STAIRS:
case E_BLOCK_STONE_BRICK_STAIRS:
case E_BLOCK_NETHER_BRICK_STAIRS:
case E_BLOCK_SANDSTONE_STAIRS:
case E_BLOCK_SPRUCE_WOOD_STAIRS:
case E_BLOCK_BIRCH_WOOD_STAIRS:
case E_BLOCK_JUNGLE_WOOD_STAIRS:
case E_BLOCK_QUARTZ_STAIRS:
case E_BLOCK_ACACIA_WOOD_STAIRS:
case E_BLOCK_DARK_OAK_WOOD_STAIRS:
case E_BLOCK_RED_SANDSTONE_STAIRS:
{
return (a_BlockFace == BLOCK_FACE_TOP) && (a_BlockMeta & E_BLOCK_STAIRS_UPSIDE_DOWN);
}
default:
{
if (cBlockInfo::FullyOccupiesVoxel(a_BlockType))
{
// Torches can be placed on all sides of full blocks except the bottom
return (a_BlockFace != BLOCK_FACE_YM);
}
return false;
}
}
}
protected:
~cBlockTorchBaseHandler() = default;
private:
/** Converts the torch block's meta to the block face of the neighbor to which the torch is attached. */
inline static eBlockFace MetaDataToBlockFace(NIBBLETYPE a_MetaData)
{
switch (a_MetaData)
{
case 0: return BLOCK_FACE_TOP; // By default, the torches stand on the ground
case E_META_TORCH_FLOOR: return BLOCK_FACE_TOP;
case E_META_TORCH_EAST: return BLOCK_FACE_EAST;
case E_META_TORCH_WEST: return BLOCK_FACE_WEST;
case E_META_TORCH_NORTH: return BLOCK_FACE_NORTH;
case E_META_TORCH_SOUTH: return BLOCK_FACE_SOUTH;
default:
{
ASSERT(!"Unhandled torch metadata");
break;
}
}
return BLOCK_FACE_TOP;
}
virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, const NIBBLETYPE a_Meta) const override
{
auto Face = MetaDataToBlockFace(a_Meta);
auto NeighborRelPos = AddFaceDirection(a_Position, Face, true);
BLOCKTYPE NeighborBlockType;
NIBBLETYPE NeighborBlockMeta;
if (!a_Chunk.UnboundedRelGetBlock(NeighborRelPos, NeighborBlockType, NeighborBlockMeta))
{
// Neighbor in an unloaded chunk, bail out without changint this.
return false;
}
return CanBePlacedOn(NeighborBlockType, NeighborBlockMeta, Face);
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
{
UNUSED(a_Meta);
return 0;
}
} ;
class cBlockTorchHandler final :
public cClearMetaOnDrop<cBlockTorchBaseHandler>
{
using Super = cClearMetaOnDrop<cBlockTorchBaseHandler>;
public:
using Super::Super;
};
class cBlockRedstoneTorchHandler final :
public cBlockTorchBaseHandler
{
using Super = cBlockTorchBaseHandler;
public:
using Super::Super;
private:
virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
{
// Always drop the ON torch, meta 0:
return { E_BLOCK_REDSTONE_TORCH_ON };
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
{
UNUSED(a_Meta);
return 0;
}
};
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