ItemSign.h

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#pragma once

#include "ItemHandler.h"
#include "../World.h"
#include "../Blocks/BlockSignPost.h"
#include "../Blocks/BlockWallSign.h"
#include "../ClientHandle.h"





class cItemSignHandler :
    public cItemHandler
{
    typedef cItemHandler super;
public:
    cItemSignHandler(int a_ItemType) :
        super(a_ItemType)
    {
    }


    virtual bool OnPlayerPlace(
        cWorld & a_World, cPlayer & a_Player, const cItem & a_EquippedItem,
        int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
        int a_CursorX, int a_CursorY, int a_CursorZ
    ) override
    {
        // Check if placing on something ignoring build collision to edit the correct sign later on:
        BLOCKTYPE ClickedBlock;
        NIBBLETYPE ClickedBlockMeta;
        a_World.GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, ClickedBlock, ClickedBlockMeta);
        cChunkInterface ChunkInterface(a_World.GetChunkMap());
        bool isReplacingClickedBlock = BlockHandler(ClickedBlock)->DoesIgnoreBuildCollision(ChunkInterface, { a_BlockX, a_BlockY, a_BlockZ }, a_Player, ClickedBlockMeta);

        // If the regular placement doesn't work, do no further processing:
        if (!super::OnPlayerPlace(a_World, a_Player, a_EquippedItem, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_CursorX, a_CursorY, a_CursorZ))
        {
            return false;
        }

        // Use isReplacingClickedBlock to make sure we will edit the right sign:
        if (!isReplacingClickedBlock)
        {
            AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace);
        }

        // After successfully placing the sign, open the sign editor for the player:
        a_Player.GetClientHandle()->SendEditSign(a_BlockX, a_BlockY, a_BlockZ);
        return true;
    }


    virtual bool IsPlaceable(void) override
    {
        return true;
    }


    virtual bool GetPlacementBlockTypeMeta(
        cWorld * a_World, 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
    {
        if (a_BlockFace == BLOCK_FACE_TOP)
        {
            a_BlockMeta = cBlockSignPostHandler::RotationToMetaData(a_Player->GetYaw());
            a_BlockType = E_BLOCK_SIGN_POST;
        }
        else
        {
            a_BlockMeta = cBlockWallSignHandler::DirectionToMetaData(a_BlockFace);
            a_BlockType = E_BLOCK_WALLSIGN;
        }
        return true;
    }
} ;