BlockButton.h

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#pragma once

#include "BlockHandler.h"
#include "../Chunk.h"
#include "Mixins.h"




class cBlockButtonHandler :
    public cClearMetaOnDrop<cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>>
{
    using super = cClearMetaOnDrop<cMetaRotator<cBlockHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>>;

public:

    cBlockButtonHandler(BLOCKTYPE a_BlockType):
        super(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
    {
        Vector3i Pos(a_BlockX, a_BlockY, a_BlockZ);
        NIBBLETYPE Meta = a_ChunkInterface.GetBlockMeta(Pos);

        Vector3d SoundPos(Pos);

        // 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, false);
        a_WorldInterface.WakeUpSimulators(Pos);
        a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("block.stone_button.click_on", SoundPos, 0.5f, 0.6f);

        // Queue a button reset (unpress)
        auto TickDelay = (m_BlockType == E_BLOCK_STONE_BUTTON) ? 20 : 30;
        a_Player.GetWorld()->ScheduleTask(TickDelay, [SoundPos, Pos, this](cWorld & a_World)
            {
                if (a_World.GetBlock(Pos) == m_BlockType)
                {
                    // Block hasn't change in the meantime; set its meta
                    a_World.SetBlockMeta(Pos.x, Pos.y, Pos.z, a_World.GetBlockMeta(Pos) & 0x07, false);
                    a_World.WakeUpSimulators(Pos);
                    a_World.BroadcastSoundEffect("block.stone_button.click_off", SoundPos, 0.5f, 0.5f);
                }
            }
        );

        return true;
    }

    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;
            }
        }
        UNREACHABLE("Unsupported block face");
    }

    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;
    }

    static bool IsButtonOn(NIBBLETYPE a_BlockMeta)
    {
        return ((a_BlockMeta & 0x8) == 0x8);
    }
} ;