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>
79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
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#pragma once
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#include "BlockHandler.h"
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#include "BlockInfo.h"
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#include "Mixins.h"
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class cBlockLadderHandler final :
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public cClearMetaOnDrop<cMetaRotator<cBlockHandler, 0x07, 0x02, 0x05, 0x03, 0x04> >
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{
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using Super = cClearMetaOnDrop<cMetaRotator<cBlockHandler, 0x07, 0x02, 0x05, 0x03, 0x04>>;
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public:
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using Super::Super;
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/** Returns true if the ladder will be supported by the block through the given blockface. */
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static bool CanBePlacedOn(const BLOCKTYPE a_BlockType, const eBlockFace a_BlockFace)
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{
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if (
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(a_BlockFace == BLOCK_FACE_NONE) ||
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(a_BlockFace == BLOCK_FACE_BOTTOM) ||
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(a_BlockFace == BLOCK_FACE_TOP)
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)
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{
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return false;
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}
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return cBlockInfo::IsSolid(a_BlockType);
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}
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private:
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/** Converts the ladder block's meta to the block face of the neighbor to which the ladder is attached. */
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static eBlockFace MetaDataToBlockFace(NIBBLETYPE a_MetaData)
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{
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switch (a_MetaData)
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{
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case 0x2: return BLOCK_FACE_ZM;
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case 0x3: return BLOCK_FACE_ZP;
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case 0x4: return BLOCK_FACE_XM;
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case 0x5: return BLOCK_FACE_XP;
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default: return BLOCK_FACE_ZM;
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}
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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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auto Face = MetaDataToBlockFace(a_Meta);
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auto NeighborRelPos = AddFaceDirection(a_Position, Face, true);
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BLOCKTYPE NeighborBlockType;
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a_Chunk.UnboundedRelGetBlockType(NeighborRelPos, NeighborBlockType);
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return CanBePlacedOn(NeighborBlockType, Face);
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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 0;
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}
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} ;
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