cuberite-2a/src/Blocks/BlockDropSpenser.h

// BlockDropSpenser.h

// Declares the cBlockDropSpenserHandler class representing the BlockHandler for Dropper and Dispenser blocks

#pragma once

#include "../Blocks/BlockPiston.h"
#include "MetaRotator.h"





class cBlockDropSpenserHandler :
	public cMetaRotator<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
{
public:
	cBlockDropSpenserHandler(BLOCKTYPE a_BlockType) :
		cMetaRotator<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
	{
	}

	virtual bool GetPlacementBlockTypeMeta(
		cChunkInterface & a_ChunkInterface, cPlayer & a_Player,
		int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
		int a_CursorX, int a_CursorY, int a_CursorZ,
		BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
	) override
	{
		a_BlockType = m_BlockType;

		// FIXME: Do not use cPiston class for dispenser placement!
		a_BlockMeta = cBlockPistonHandler::RotationPitchToMetaData(a_Player.GetYaw(), a_Player.GetPitch());
		return true;
	}

	virtual NIBBLETYPE MetaMirrorXZ(NIBBLETYPE a_Meta) override
	{
		// Bit 0x08 is a flag. Lowest three bits are position. 0x08 == 1000
		NIBBLETYPE OtherMeta = a_Meta & 0x08;
		// Mirrors defined by by a table. (Source, mincraft.gamepedia.com) 0x07 == 0111
		switch (a_Meta & 0x07)
		{
			case 0x00: return 0x01 + OtherMeta;  // Down -> Up
			case 0x01: return 0x00 + OtherMeta;  // Up -> Down
		}
		// Not Facing Up or Down; No change.
		return a_Meta;
	}

	virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
	{
		UNUSED(a_Meta);
		return 11;
	}
} ;