a62b2b1be2
* Move item placement into item handlers + Add appropriate CanBeAt checks in cPlayer::PlaceBlocks, into which all placement handlers call. * Partly addresses #5157 * Fixes #4878 * Fixes #2919 * Fixes #4629 * Fixes #4239 * Fixes #4849 Co-authored-by: changyong guo <guo1487@163.com> Co-authored-by: Xotheus <shady3300@outlook.com> Co-authored-by: Krist Pregracke <krist@tiger-scm.com> * Review fixes * Update APIDesc.lua * Rename Co-authored-by: changyong guo <guo1487@163.com> Co-authored-by: Xotheus <shady3300@outlook.com> Co-authored-by: Krist Pregracke <krist@tiger-scm.com>
104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
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#pragma once
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#include "BlockHandler.h"
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#include "ChunkInterface.h"
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/** Handles the grass that is 1 block tall */
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class cBlockTallGrassHandler final :
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public cBlockHandler
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{
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using Super = cBlockHandler;
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public:
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using Super::Super;
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private:
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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
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{
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return true;
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}
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virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
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{
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// If using shears, drop self:
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if ((a_Tool != nullptr) && (a_Tool->m_ItemType == E_ITEM_SHEARS))
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{
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return cItem(m_BlockType, 1, a_BlockMeta);
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}
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// Drop seeds, depending on bernoulli trial result:
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if (GetRandomProvider().RandBool(0.875)) // 87.5% chance of dropping nothing
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{
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return {};
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}
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// 12.5% chance of dropping 0 or more seeds.
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const auto DropNum = FortuneDiscreteRandom(1, 1, 2 * ToolFortuneLevel(a_Tool));
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return cItem(E_ITEM_SEEDS, DropNum);
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}
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virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, const NIBBLETYPE a_Meta) const override
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{
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if (a_Position.y <= 0)
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{
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return false;
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}
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BLOCKTYPE BelowBlock = a_Chunk.GetBlock(a_Position.addedY(-1));
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return IsBlockTypeOfDirt(BelowBlock);
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}
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/** Growing a tall grass produces a big flower (2-block high fern or double-tall grass). */
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virtual int Grow(cChunk & a_Chunk, Vector3i a_RelPos, int a_NumStages = 1) const override
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{
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if (a_RelPos.y > (cChunkDef::Height - 2))
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{
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return 0;
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}
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auto blockMeta = a_Chunk.GetMeta(a_RelPos);
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NIBBLETYPE largeFlowerMeta;
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switch (blockMeta)
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{
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case E_META_TALL_GRASS_GRASS: largeFlowerMeta = E_META_BIG_FLOWER_DOUBLE_TALL_GRASS; break;
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case E_META_TALL_GRASS_FERN: largeFlowerMeta = E_META_BIG_FLOWER_LARGE_FERN; break;
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default: return 0;
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}
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a_Chunk.SetBlock(a_RelPos, E_BLOCK_BIG_FLOWER, largeFlowerMeta);
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a_Chunk.SetBlock(a_RelPos.addedY(1), E_BLOCK_BIG_FLOWER, E_META_BIG_FLOWER_TOP);
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return 1;
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_Meta);
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return 7;
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}
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} ;
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