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authorAuke Kok <sofar@foo-projects.org>2017-10-19 21:39:45 -0700
committerAuke Kok <sofar@foo-projects.org>2017-10-19 21:39:45 -0700
commitc60abb2aeccba2920d55a518fcffd2ad57f9f59a (patch)
tree6da89203a29f6dadb2d384b10ec779d1633fe2b4 /src/unittest/test_objdef.cpp
parentcdedaac5e299f71df72c2eb49ec52506467af831 (diff)
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Correct `prot_vers` in lua_api.txt.
We should avoid providing incorrect struct members in documentation since people will be coding based on them.
Diffstat (limited to 'src/unittest/test_objdef.cpp')
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/*
Minetest
Copyright (C) 2016 MillersMan <millersman@users.noreply.github.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "reflowscan.h"
#include "map.h"
#include "mapblock.h"
#include "nodedef.h"
#include "util/timetaker.h"


ReflowScan::ReflowScan(Map *map, const NodeDefManager *ndef) :
	m_map(map),
	m_ndef(ndef)
{
}

void ReflowScan::scan(MapBlock *block, UniqueQueue<v3s16> *liquid_queue)
{
	m_block_pos = block->getPos();
	m_rel_block_pos = block->getPosRelative();
	m_liquid_queue = liquid_queue;

	// Prepare the lookup which is a 3x3x3 array of the blocks surrounding the
	// scanned block. Blocks are only added to the lookup if they are really
	// needed. The lookup is indexed manually to use the same index in a
	// bit-array (of uint32 type) which stores for unloaded blocks that they
	// were already fetched from Map but were actually nullptr.
	memset(m_lookup, 0, sizeof(m_lookup));
	int block_idx = 1 + (1 * 9) + (1 * 3);
	m_lookup[block_idx] = block;
	m_lookup_state_bitset = 1 << block_idx;

	// Scan the columns in the block
	for (s16 z = 0; z < MAP_BLOCKSIZE; z++)
	for (s16 x = 0; x < MAP_BLOCKSIZE; x++) {
		scanColumn(x, z);
	}

	// Scan neighbouring columns from the nearby blocks as they might contain
	// liquid nodes that weren't allowed to flow to prevent gaps.
	for (s16 i = 0; i < MAP_BLOCKSIZE; i++) {