72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
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// BlockHopper.h
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// Declares the cBlockHopperHandler class representing the handler for the Hopper block
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#include "MetaRotator.h"
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class cBlockHopperHandler :
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public cMetaRotator<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
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{
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public:
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cBlockHopperHandler(BLOCKTYPE a_BlockType)
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: cMetaRotator<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
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{
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}
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virtual bool GetPlacementBlockTypeMeta(
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cChunkInterface & a_ChunkInterface, cPlayer * a_Player,
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int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
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int a_CursorX, int a_CursorY, int a_CursorZ,
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BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
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) override
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{
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a_BlockType = m_BlockType;
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// Convert the blockface into meta:
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switch (a_BlockFace)
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{
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case BLOCK_FACE_BOTTOM: a_BlockMeta = E_META_HOPPER_FACING_YM; break;
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case BLOCK_FACE_TOP: a_BlockMeta = E_META_HOPPER_FACING_YM; break;
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case BLOCK_FACE_EAST: a_BlockMeta = E_META_HOPPER_FACING_XM; break;
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case BLOCK_FACE_NORTH: a_BlockMeta = E_META_HOPPER_FACING_ZP; break;
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case BLOCK_FACE_SOUTH: a_BlockMeta = E_META_HOPPER_FACING_ZM; break;
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case BLOCK_FACE_WEST: a_BlockMeta = E_META_HOPPER_FACING_XP; break;
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case BLOCK_FACE_NONE: a_BlockMeta = E_META_HOPPER_UNATTACHED; break;
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}
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return true;
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}
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virtual NIBBLETYPE MetaMirrorXZ(NIBBLETYPE a_Meta) override
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{
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// Bit 0x08 is a flag. Lowest three bits are position. 0x08 == 1000
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NIBBLETYPE OtherMeta = a_Meta & 0x08;
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// Mirrors defined by by a table. (Source, mincraft.gamepedia.com) 0x07 == 0111
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switch (a_Meta & 0x07)
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{
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case 0x00: return 0x01 + OtherMeta; // Down -> Up
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case 0x01: return 0x00 + OtherMeta; // Up -> Down
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}
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// Not Facing Up or Down; No change.
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return a_Meta;
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}
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virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
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{
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// Reset meta to 0
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a_Pickups.push_back(cItem(m_BlockType, 1, 0));
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
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{
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UNUSED(a_Meta);
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return 11;
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}
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} ;
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