101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
|
|
#pragma once
|
|
|
|
#include "ItemHandler.h"
|
|
|
|
|
|
|
|
|
|
|
|
class cItemSlabHandler:
|
|
public cItemHandler
|
|
{
|
|
using Super = cItemHandler;
|
|
|
|
public:
|
|
|
|
using Super::Super;
|
|
|
|
private:
|
|
|
|
virtual bool CommitPlacement(cPlayer & a_Player, const cItem & a_HeldItem, const Vector3i a_PlacePosition, const eBlockFace a_ClickedBlockFace, const Vector3i a_CursorPosition) override
|
|
{
|
|
// Confer BlockSlab.h, which we're in cahoots with to make the below logic work.
|
|
|
|
// If clicking a slab, combine it into a double-slab:
|
|
if (cBlockSlabHandler::IsAnySlabType(a_Player.GetWorld()->GetBlock(a_PlacePosition)))
|
|
{
|
|
if (!a_Player.PlaceBlock(a_PlacePosition, GetDoubleSlabType(static_cast<BLOCKTYPE>(a_HeldItem.m_ItemType)), static_cast<NIBBLETYPE>(a_HeldItem.m_ItemDamage)))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
a_Player.SendBlocksAround(a_PlacePosition.x, a_PlacePosition.y, a_PlacePosition.z, 2); // (see below)
|
|
return true;
|
|
}
|
|
|
|
// Set the correct metadata based on player equipped item:
|
|
if (!a_Player.PlaceBlock(a_PlacePosition, static_cast<BLOCKTYPE>(a_HeldItem.m_ItemType), FaceToMetaData(static_cast<NIBBLETYPE>(a_HeldItem.m_ItemDamage), a_ClickedBlockFace, a_CursorPosition)))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/* This is a workaround for versions < 1.13, where the client combines a slab in the
|
|
direction of the clicked block face of a block ignoring build collision, rather than replacing said block.
|
|
Resend blocks to the client to fix the bug.
|
|
Ref.: https://forum.cuberite.org/thread-434-post-17388.html#pid17388 */
|
|
a_Player.SendBlocksAround(a_PlacePosition.x, a_PlacePosition.y, a_PlacePosition.z, 2);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
static NIBBLETYPE FaceToMetaData(const NIBBLETYPE a_BaseMeta, const eBlockFace a_ClickedBlockFace, const Vector3i a_CursorPosition)
|
|
{
|
|
switch (a_ClickedBlockFace)
|
|
{
|
|
case BLOCK_FACE_TOP:
|
|
{
|
|
// Bottom half slab block:
|
|
return a_BaseMeta & 0x07;
|
|
}
|
|
case BLOCK_FACE_BOTTOM:
|
|
{
|
|
// Top half slab block:
|
|
return a_BaseMeta | 0x08;
|
|
}
|
|
case BLOCK_FACE_EAST:
|
|
case BLOCK_FACE_NORTH:
|
|
case BLOCK_FACE_SOUTH:
|
|
case BLOCK_FACE_WEST:
|
|
{
|
|
if (a_CursorPosition.y > 7)
|
|
{
|
|
// Cursor at top half of block, place top slab:
|
|
return a_BaseMeta | 0x08;
|
|
}
|
|
else
|
|
{
|
|
// Cursor at bottom half of block, place bottom slab:
|
|
return a_BaseMeta & 0x07;
|
|
}
|
|
}
|
|
default: UNREACHABLE("Unhandled block face");
|
|
}
|
|
}
|
|
|
|
|
|
/** Converts the single-slab blocktype to its equivalent double-slab blocktype. */
|
|
static BLOCKTYPE GetDoubleSlabType(BLOCKTYPE a_SingleSlabBlockType)
|
|
{
|
|
switch (a_SingleSlabBlockType)
|
|
{
|
|
case E_BLOCK_STONE_SLAB: return E_BLOCK_DOUBLE_STONE_SLAB;
|
|
case E_BLOCK_WOODEN_SLAB: return E_BLOCK_DOUBLE_WOODEN_SLAB;
|
|
case E_BLOCK_RED_SANDSTONE_SLAB: return E_BLOCK_DOUBLE_RED_SANDSTONE_SLAB;
|
|
case E_BLOCK_PURPUR_SLAB: return E_BLOCK_PURPUR_DOUBLE_SLAB;
|
|
}
|
|
UNREACHABLE("Unhandled slab type");
|
|
}
|
|
};
|