text: #pragma once
  
  #include "BlockHandler.h"
  #include "Chunk.h"
  #include "MetaRotator.h"
  
  
  
  
  class cBlockButtonHandler :
  	public cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>
  {
  public:
  	cBlockButtonHandler(BLOCKTYPE a_BlockType)
  		: cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>(a_BlockType)
  	{
  	}
  	
  	virtual bool OnUse(cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override
  	{
  		NIBBLETYPE Meta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
  		
  		double x(a_BlockX);
  		double y(a_BlockY);
  		double z(a_BlockZ);
  
  		// If button is already on do nothing
  		if (Meta & 0x08)
  		{
  			return false;
  		}
  
  		// Set p the ON bit to on
  		Meta |= 0x08;
  
  		a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, Meta);
  		a_WorldInterface.WakeUpSimulators(a_BlockX, a_BlockY, a_BlockZ);
  		a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("random.click", x, y, z, 0.5f, 0.6f);
  
  		// Queue a button reset (unpress)
  		auto TickDelay = (m_BlockType == E_BLOCK_STONE_BUTTON) ? 20 : 30;
  		a_Player->GetWorld()->ScheduleTask(TickDelay, [x, y, z, a_BlockX, a_BlockY, a_BlockZ, this](cWorld & a_World)
  			{
  				if (a_World.GetBlock(a_BlockX, a_BlockY, a_BlockZ) == m_BlockType)
  				{
  					// Block hasn't change in the meantime; set its meta
  					a_World.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, a_World.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) & 0x07);
  					a_World.WakeUpSimulators(a_BlockX, a_BlockY, a_BlockZ);
  					a_World.BroadcastSoundEffect("random.click", x, y, z, 0.5f, 0.5f);
  				}
  			}
  		);
  
  		return true;
  	}
  	
  	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
  	{
  		// Reset meta to 0
  		a_Pickups.push_back(cItem(m_BlockType, 1, 0));
  	}
  
  	virtual bool IsUseable(void) override
  	{
  		return true;
  	}
  	
  	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;
  		a_BlockMeta = BlockFaceToMetaData(a_BlockFace);
  		return true;
  	}
  
  	inline static NIBBLETYPE BlockFaceToMetaData(eBlockFace a_BlockFace)
  	{
  		switch (a_BlockFace)
  		{
  			case BLOCK_FACE_YP: return 0x5;
  			case BLOCK_FACE_ZM: return 0x4;
  			case BLOCK_FACE_ZP: return 0x3;
  			case BLOCK_FACE_XM: return 0x2;
  			case BLOCK_FACE_XP: return 0x1;
  			case BLOCK_FACE_YM: return 0x0;
  			case BLOCK_FACE_NONE:
  			{
  				ASSERT(!"Unhandled block face!");
  				return 0x0;
  			}
  		}
  		#if !defined(__clang__)
  			ASSERT(!"Unknown BLOCK_FACE");
  			return 0;
  		#endif
  	}
  
  	inline static eBlockFace BlockMetaDataToBlockFace(NIBBLETYPE a_Meta)
  	{
  		switch (a_Meta & 0x7)
  		{
  			case 0x0: return BLOCK_FACE_YM;
  			case 0x1: return BLOCK_FACE_XP;
  			case 0x2: return BLOCK_FACE_XM;
  			case 0x3: return BLOCK_FACE_ZP;
  			case 0x4: return BLOCK_FACE_ZM;
  			case 0x5: return BLOCK_FACE_YP;
  			default:
  			{
  				ASSERT(!"Unhandled block meta!");
  				return BLOCK_FACE_NONE;
  			}
  		}
  	}
  
  	virtual bool CanBeAt(cChunkInterface & a_ChunkInterface, int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
  	{
  		NIBBLETYPE Meta;
  		a_Chunk.UnboundedRelGetBlockMeta(a_RelX, a_RelY, a_RelZ, Meta);
  
  		AddFaceDirection(a_RelX, a_RelY, a_RelZ, BlockMetaDataToBlockFace(Meta), true);
  		BLOCKTYPE BlockIsOn; a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY, a_RelZ, BlockIsOn);
  
  		return (a_RelY > 0) && (cBlockInfo::FullyOccupiesVoxel(BlockIsOn));
  	}
  
  	virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
  	{
  		UNUSED(a_Meta);
  		return 0;
  	}
  
  	/** Extracts the ON bit from metadata and returns if true if it is set */
  	static bool IsButtonOn(NIBBLETYPE a_BlockMeta)
  	{
  		return ((a_BlockMeta & 0x8) == 0x8);
  	}
  } ;
  
  
  
  
  