BlockTallGrass.h

Go to the documentation of this file.

 
#pragma once
 
#include "BlockHandler.h"
#include "ChunkInterface.h"
 
 
 
 
 
class cBlockTallGrassHandler final :
    public cBlockHandler
{
    using Super = cBlockHandler;
 
public:
 
    using Super::Super;
 
private:
 
    virtual bool DoesIgnoreBuildCollision(const cWorld & a_World, const cItem & a_HeldItem, const Vector3i a_Position, const NIBBLETYPE a_Meta, const eBlockFace a_ClickedBlockFace, const bool a_ClickedDirectly) const override
    {
        return true;
    }
 
 
 
 
 
    virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
    {
        // If using shears, drop self:
        if ((a_Tool != nullptr) && (a_Tool->m_ItemType == E_ITEM_SHEARS))
        {
            return cItem(m_BlockType, 1, a_BlockMeta);
        }
 
        // Drop seeds, depending on bernoulli trial result:
        if (GetRandomProvider().RandBool(0.875))  // 87.5% chance of dropping nothing
        {
            return {};
        }
 
        // 12.5% chance of dropping 0 or more seeds.
        const auto DropNum = FortuneDiscreteRandom(1, 1, 2 * ToolFortuneLevel(a_Tool));
        return cItem(E_ITEM_SEEDS, DropNum);
    }
 
 
 
 
 
    virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, const NIBBLETYPE a_Meta) const override
    {
        if (a_Position.y <= 0)
        {
            return false;
        }
 
        BLOCKTYPE BelowBlock = a_Chunk.GetBlock(a_Position.addedY(-1));
        return IsBlockTypeOfDirt(BelowBlock);
    }
 
 
 
 
 
    virtual int Grow(cChunk & a_Chunk, Vector3i a_RelPos, int a_NumStages = 1) const override
    {
        if (a_RelPos.y > (cChunkDef::Height - 2))
        {
            return 0;
        }
        auto blockMeta = a_Chunk.GetMeta(a_RelPos);
        NIBBLETYPE largeFlowerMeta;
        switch (blockMeta)
        {
            case E_META_TALL_GRASS_GRASS: largeFlowerMeta = E_META_BIG_FLOWER_DOUBLE_TALL_GRASS; break;
            case E_META_TALL_GRASS_FERN:  largeFlowerMeta = E_META_BIG_FLOWER_LARGE_FERN; break;
            default:                      return 0;
        }
        a_Chunk.SetBlock(a_RelPos,           E_BLOCK_BIG_FLOWER, largeFlowerMeta);
        a_Chunk.SetBlock(a_RelPos.addedY(1), E_BLOCK_BIG_FLOWER, E_META_BIG_FLOWER_TOP);
        return 1;
    }
 
 
 
 
 
    virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
    {
        UNUSED(a_Meta);
        return 7;
    }
} ;