voxelalgorithms.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
#pragma once
 
#include "voxel.h"
#include "mapnode.h"
#include "util/container.h"
 
class Map;
class MapBlock;
class MMVManip;
 
namespace voxalgo
{
 
void update_lighting_nodes(
        Map *map,
        const std::vector<std::pair<v3s16, MapNode>> &oldnodes,
        std::map<v3s16, MapBlock*> &modified_blocks);
 
void update_block_border_lighting(Map *map, MapBlock *block,
        std::map<v3s16, MapBlock*> &modified_blocks);
 
void blit_back_with_light(Map *map, MMVManip *vm,
        std::map<v3s16, MapBlock*> *modified_blocks);
 
void repair_block_light(Map *map, MapBlock *block,
        std::map<v3s16, MapBlock*> *modified_blocks);
 
struct VoxelLineIterator
{
public:
        v3f m_start_position;
        v3f m_line_vector;
        v3f m_next_intersection_multi { 10000.0f, 10000.0f, 10000.0f };
        v3f m_intersection_multi_inc { 10000.0f, 10000.0f, 10000.0f };
        v3s16 m_step_directions { 1, 1, 1 };
        v3s16 m_current_node_pos;
        s16 m_current_index = 0;
        v3s16 m_start_node_pos;
        s16 m_last_index;
 
        VoxelLineIterator(const v3f &start_position,const v3f &line_vector);
 
        void next();
 
        inline bool hasNext() const
        {
                return m_current_index < m_last_index;
        }
 
        s16 getIndex(v3s16 voxel);
};
 
} // namespace voxalgo