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>
229 lines
5.3 KiB
C++
229 lines
5.3 KiB
C++
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// BlockSlab.h
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// Declares cBlockSlabHandler and cBlockDoubleSlabHandler classes
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#pragma once
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#include "BlockHandler.h"
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#include "ChunkInterface.h"
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#include "../BlockInfo.h"
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#include "../Entities/Player.h"
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#include "../BlockInfo.h"
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class cBlockSlabHandler 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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/** Returns true if the specified blocktype is one of the slabs handled by this handler */
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static bool IsAnySlabType(BLOCKTYPE a_BlockType)
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{
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return (
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(a_BlockType == E_BLOCK_WOODEN_SLAB) ||
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(a_BlockType == E_BLOCK_STONE_SLAB) ||
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(a_BlockType == E_BLOCK_RED_SANDSTONE_SLAB) ||
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(a_BlockType == E_BLOCK_PURPUR_SLAB)
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);
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}
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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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// Reset the "top half" flag:
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return cItem(m_BlockType, 1, a_BlockMeta & 0x07);
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}
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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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/* Double slab combining uses build collision checks to replace single slabs with double slabs in the right conditions.
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For us to be replaced, the player must be:
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1. Placing the same slab material.
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2. Placing the same slab sub-kind (and existing slab is single). */
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if ((m_BlockType != a_HeldItem.m_ItemType) || ((a_Meta & 0x07) != a_HeldItem.m_ItemDamage))
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{
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return false;
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}
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const bool IsTopSlab = (a_Meta & 0x08) == 0x08;
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const auto CanClickCombine = ((a_ClickedBlockFace == BLOCK_FACE_TOP) && !IsTopSlab) || ((a_ClickedBlockFace == BLOCK_FACE_BOTTOM) && IsTopSlab);
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/* When the player clicks on us directly, we'll combine if we're
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a bottom slab and he clicked the top, or vice versa. Clicking on the sides will not combine.
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However, when indirectly clicked (on the side of another block, that caused placement to go to us)
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the conditions are exactly the opposite. */
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return a_ClickedDirectly ? CanClickCombine : !CanClickCombine;
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}
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virtual void OnCancelRightClick(
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cChunkInterface & a_ChunkInterface,
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cWorldInterface & a_WorldInterface,
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cPlayer & a_Player,
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const Vector3i a_BlockPos,
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eBlockFace a_BlockFace
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) const override
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{
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if ((a_BlockFace == BLOCK_FACE_NONE) || (a_Player.GetEquippedItem().m_ItemType != static_cast<short>(m_BlockType)))
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{
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return;
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}
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// Sends the slab back to the client. It's to refuse a doubleslab placement. */
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a_Player.GetWorld()->SendBlockTo(a_BlockPos, a_Player);
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}
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virtual NIBBLETYPE MetaMirrorXZ(NIBBLETYPE a_Meta) const override
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{
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// Toggle the 4th bit - up / down:
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return (a_Meta ^ 0x08);
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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a_Meta &= 0x7;
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switch (m_BlockType)
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{
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case E_BLOCK_STONE_SLAB:
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{
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switch (a_Meta)
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{
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case E_META_STONE_SLAB_SANDSTONE: return 2;
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case E_META_STONE_SLAB_PLANKS: return 13;
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case E_META_STONE_SLAB_STONE_BRICK:
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case E_META_STONE_SLAB_STONE:
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case E_META_STONE_SLAB_COBBLESTONE: return 11;
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case E_META_STONE_SLAB_BRICK: return 28;
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case E_META_STONE_SLAB_NETHER_BRICK: return 35;
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case E_META_STONE_SLAB_QUARTZ: return 8;
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default:
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{
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ASSERT(!"Unhandled meta in slab handler!");
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return 0;
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}
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}
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}
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case E_BLOCK_WOODEN_SLAB:
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{
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switch (a_Meta)
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{
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case E_META_WOODEN_SLAB_BIRCH: return 2;
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case E_META_WOODEN_SLAB_JUNGLE: return 10;
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case E_META_WOODEN_SLAB_OAK: return 13;
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case E_META_WOODEN_SLAB_ACACIA: return 15;
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case E_META_WOODEN_SLAB_DARK_OAK: return 26;
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case E_META_WOODEN_SLAB_SPRUCE: return 34;
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default:
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{
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ASSERT(!"Unhandled meta in slab handler!");
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return 0;
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}
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}
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}
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case E_BLOCK_RED_SANDSTONE_SLAB:
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{
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return 10;
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}
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case E_BLOCK_PURPUR_SLAB:
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{
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return 16;
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}
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default:
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{
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ASSERT(!"Unhandled blocktype in slab handler!");
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return 0;
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}
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}
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}
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virtual bool IsInsideBlock(Vector3d a_Position, const NIBBLETYPE a_BlockMeta) const override
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{
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if (a_BlockMeta & 0x08) // top half
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{
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return true;
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}
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return cBlockHandler::IsInsideBlock(a_Position, a_BlockMeta);
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}
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} ;
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class cBlockDoubleSlabHandler 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 cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
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{
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BLOCKTYPE Block = GetSingleSlabType(m_BlockType);
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return cItem(Block, 2, a_BlockMeta & 0x7);
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}
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inline static BLOCKTYPE GetSingleSlabType(BLOCKTYPE a_BlockType)
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{
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switch (a_BlockType)
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{
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case E_BLOCK_DOUBLE_STONE_SLAB: return E_BLOCK_STONE_SLAB;
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case E_BLOCK_DOUBLE_WOODEN_SLAB: return E_BLOCK_WOODEN_SLAB;
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case E_BLOCK_DOUBLE_RED_SANDSTONE_SLAB: return E_BLOCK_RED_SANDSTONE_SLAB;
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case E_BLOCK_PURPUR_DOUBLE_SLAB: return E_BLOCK_PURPUR_SLAB;
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}
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ASSERT(!"Unhandled double slab type!");
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return a_BlockType;
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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// For doule slabs, the meta values are the same. Only the meaning of the 4th bit changes, but that's ignored in the below handler
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return cBlockHandler::For(GetSingleSlabType(m_BlockType)).GetMapBaseColourID(a_Meta);
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}
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} ;
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