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#pragma once
#include "BlockHandler.h"
#include "ChunkInterface.h"
#include "../BlockInfo.h"
#include "../Items/ItemHandler.h"
class cBlockBigFlowerHandler 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,
NIBBLETYPE a_Meta,
const eBlockFace a_ClickedBlockFace,
const bool a_ClickedDirectly
) const override
{
if (IsMetaTopPart(a_Meta))
{
BLOCKTYPE BottomType;
if ((a_Position.y < 1) || !a_World.GetBlockTypeMeta(a_Position - Vector3i(0, 1, 0), BottomType, a_Meta) ||
(BottomType != E_BLOCK_BIG_FLOWER))
{
// Can't find the flower meta so assume grass
return true;
}
}
NIBBLETYPE FlowerMeta = a_Meta & 0x07;
return ((FlowerMeta == E_META_BIG_FLOWER_DOUBLE_TALL_GRASS) || (FlowerMeta == E_META_BIG_FLOWER_LARGE_FERN));
}
virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
{
if (IsMetaTopPart(a_BlockMeta))
{
return {};
}
// With shears, drop self (even tall grass and fern):
if ((a_Tool != nullptr) && (a_Tool->m_ItemType == E_ITEM_SHEARS))
{
// Bit 0x08 specifies whether this is a top part or bottom; cut it off from the pickup:
return cItem(m_BlockType, 1, a_BlockMeta & 0x07);
}
// Tall grass drops seeds, large fern drops nothing, others drop self:
auto flowerType = a_BlockMeta & 0x07;
if (flowerType == E_META_BIG_FLOWER_DOUBLE_TALL_GRASS)
{
// Drop seeds, depending on bernoulli trial result:
if (GetRandomProvider().RandBool(0.875))
{
// 87.5% chance of dropping nothing:
return {};
}
// 12.5% chance of dropping some seeds.
const auto DropNum = FortuneDiscreteRandom(1, 1, 2 * ToolFortuneLevel(a_Tool));
return cItem(E_ITEM_SEEDS, DropNum);
}
else if (flowerType != E_META_BIG_FLOWER_LARGE_FERN)
{
return cItem(m_BlockType, 1, static_cast<short>(flowerType));
}
return {};
}
static bool IsMetaTopPart(NIBBLETYPE a_Meta) { return ((a_Meta & 0x08) != 0); }
virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, const NIBBLETYPE a_Meta) const override
{
// CanBeAt is also called on placement, so the top part can't check for the bottom part.
// Both parts can only that they're rooted in grass.
const auto RootPosition = a_Position.addedY(IsMetaTopPart(a_Meta) ? -2 : -1);
return (RootPosition.y >= 0) && IsBlockTypeOfDirt(a_Chunk.GetBlock(RootPosition));
}
virtual void OnBroken(
cChunkInterface & a_ChunkInterface,
cWorldInterface & a_WorldInterface,
const Vector3i a_BlockPos,
BLOCKTYPE a_OldBlockType,
NIBBLETYPE a_OldBlockMeta,
const cEntity * a_Digger
) const override
{
if (IsMetaTopPart(a_OldBlockMeta))
{
const auto LowerPart = a_BlockPos.addedY(-1);
if (a_ChunkInterface.GetBlock(LowerPart) == a_OldBlockType)
{
// Prevent creative punches from dropping pickups.
// TODO: Simplify to SetBlock and remove the IsMetaTopPart check in DropBlockAsPickups when 1.13
// blockstates arrive.
if ((a_Digger != nullptr) && a_Digger->IsPlayer() &&
static_cast<const cPlayer *>(a_Digger)->IsGameModeCreative())
{
a_ChunkInterface.SetBlock(LowerPart, E_BLOCK_AIR, 0);
}
else
{
a_ChunkInterface.DropBlockAsPickups(LowerPart);
}
}
}
else
{
const auto UpperPart = a_BlockPos.addedY(1);
if (a_ChunkInterface.GetBlock(UpperPart) == a_OldBlockType)
{
a_ChunkInterface.SetBlock(UpperPart, E_BLOCK_AIR, 0);
}
}
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
{
UNUSED(a_Meta);
return 7;
}
};
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