141 lines
2.7 KiB
C++
141 lines
2.7 KiB
C++
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#pragma once
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#include "BlockPlant.h"
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class cBlockSugarcaneHandler final :
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public cBlockPlant<false>
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{
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using Super = cBlockPlant<false>;
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public:
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using Super::Super;
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private:
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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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return cItem(E_ITEM_SUGARCANE, 1, 0);
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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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switch (a_Chunk.GetBlock(a_Position.addedY(-1)))
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{
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case E_BLOCK_DIRT:
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case E_BLOCK_GRASS:
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case E_BLOCK_FARMLAND:
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case E_BLOCK_SAND:
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{
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static const Vector3i Coords[] =
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{
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{-1, -1, 0},
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{ 1, -1, 0},
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{ 0, -1, -1},
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{ 0, -1, 1},
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} ;
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for (size_t i = 0; i < ARRAYCOUNT(Coords); i++)
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{
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BLOCKTYPE BlockType;
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NIBBLETYPE BlockMeta;
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if (!a_Chunk.UnboundedRelGetBlock(a_Position + Coords[i], BlockType, BlockMeta))
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{
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// Too close to the edge, cannot simulate
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return true;
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}
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if (IsBlockWater(BlockType) || (BlockType == E_BLOCK_FROSTED_ICE))
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{
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return true;
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}
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} // for i - Coords[]
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// Not directly neighboring a water block
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return false;
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}
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case E_BLOCK_SUGARCANE:
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{
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return true;
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}
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}
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return false;
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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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virtual int Grow(cChunk & a_Chunk, Vector3i a_RelPos, int a_NumStages = 1) const override
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{
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// Check the total height of the sugarcane blocks here:
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int top = a_RelPos.y + 1;
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while (
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(top < cChunkDef::Height) &&
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(a_Chunk.GetBlock({a_RelPos.x, top, a_RelPos.z}) == E_BLOCK_SUGARCANE)
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)
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{
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++top;
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}
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int bottom = a_RelPos.y - 1;
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while (
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(bottom > 0) &&
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(a_Chunk.GetBlock({a_RelPos.x, bottom, a_RelPos.z}) == E_BLOCK_SUGARCANE)
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)
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{
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--bottom;
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}
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// Grow by at most a_NumStages, but no more than max height:
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auto toGrow = std::min(a_NumStages, a_Chunk.GetWorld()->GetMaxSugarcaneHeight() + 1 - (top - bottom));
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Vector3i topPos(a_RelPos.x, top, a_RelPos.z);
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for (int i = 0; i < toGrow; i++)
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{
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if (a_Chunk.GetBlock(topPos.addedY(i)) == E_BLOCK_AIR)
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{
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a_Chunk.SetBlock(topPos.addedY(i), E_BLOCK_SUGARCANE, 0);
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}
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else
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{
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return i;
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}
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} // for i
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return toGrow;
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}
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virtual PlantAction CanGrow(cChunk & a_Chunk, Vector3i a_RelPos) const override
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{
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// Only allow growing if there's an air block above:
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if (((a_RelPos.y + 1) < cChunkDef::Height) && (a_Chunk.GetBlock(a_RelPos.addedY(1)) == E_BLOCK_AIR))
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{
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return Super::CanGrow(a_Chunk, a_RelPos);
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}
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return paStay;
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}
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} ;
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