forked from Mirrorlandia_minetest/minetest
ab371cc934
This commit introduces a new bulk node lighting algorithm to minimize lighting bugs during l-system tree generation, schematic placement and non-mapgen-object lua voxelmanip light calculation. If the block above the changed area is not loaded, it gets loaded to avoid lighting bugs. Light is updated as soon as write_to_map is called on a voxel manipulator, therefore update_map does nothing.
150 lines
3.9 KiB
C++
150 lines
3.9 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MG_SCHEMATIC_HEADER
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#define MG_SCHEMATIC_HEADER
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#include <map>
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#include "mg_decoration.h"
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#include "util/string.h"
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class Map;
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class ServerMap;
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class Mapgen;
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class MMVManip;
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class PseudoRandom;
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class NodeResolver;
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class Server;
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/*
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Minetest Schematic File Format
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All values are stored in big-endian byte order.
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[u32] signature: 'MTSM'
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[u16] version: 4
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[u16] size X
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[u16] size Y
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[u16] size Z
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For each Y:
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[u8] slice probability value
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[Name-ID table] Name ID Mapping Table
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[u16] name-id count
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For each name-id mapping:
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[u16] name length
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[u8[]] name
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ZLib deflated {
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For each node in schematic: (for z, y, x)
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[u16] content
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For each node in schematic:
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[u8] param1
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bit 0-6: probability
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bit 7: specific node force placement
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For each node in schematic:
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[u8] param2
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}
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Version changes:
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1 - Initial version
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2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
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3 - Added y-slice probabilities; this allows for variable height structures
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4 - Compressed range of node occurence prob., added per-node force placement bit
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*/
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//// Schematic constants
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#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
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#define MTSCHEM_FILE_VER_HIGHEST_READ 4
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#define MTSCHEM_FILE_VER_HIGHEST_WRITE 4
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#define MTSCHEM_PROB_MASK 0x7F
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#define MTSCHEM_PROB_NEVER 0x00
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#define MTSCHEM_PROB_ALWAYS 0x7F
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#define MTSCHEM_PROB_ALWAYS_OLD 0xFF
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#define MTSCHEM_FORCE_PLACE 0x80
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enum SchematicType
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{
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SCHEMATIC_NORMAL,
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};
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enum SchematicFormatType {
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SCHEM_FMT_HANDLE,
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SCHEM_FMT_MTS,
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SCHEM_FMT_LUA,
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};
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class Schematic : public ObjDef, public NodeResolver {
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public:
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Schematic();
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virtual ~Schematic();
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virtual void resolveNodeNames();
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bool loadSchematicFromFile(const std::string &filename, INodeDefManager *ndef,
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StringMap *replace_names=NULL);
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bool saveSchematicToFile(const std::string &filename, INodeDefManager *ndef);
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bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
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bool deserializeFromMts(std::istream *is, std::vector<std::string> *names);
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bool serializeToMts(std::ostream *os, const std::vector<std::string> &names);
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bool serializeToLua(std::ostream *os, const std::vector<std::string> &names,
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bool use_comments, u32 indent_spaces);
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void blitToVManip(MMVManip *vm, v3s16 p, Rotation rot, bool force_place);
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bool placeOnVManip(MMVManip *vm, v3s16 p, u32 flags, Rotation rot, bool force_place);
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void placeOnMap(ServerMap *map, v3s16 p, u32 flags, Rotation rot, bool force_place);
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void applyProbabilities(v3s16 p0,
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std::vector<std::pair<v3s16, u8> > *plist,
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std::vector<std::pair<s16, u8> > *splist);
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std::vector<content_t> c_nodes;
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u32 flags;
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v3s16 size;
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MapNode *schemdata;
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u8 *slice_probs;
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};
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class SchematicManager : public ObjDefManager {
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public:
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SchematicManager(Server *server);
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virtual ~SchematicManager() {}
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virtual void clear();
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const char *getObjectTitle() const
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{
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return "schematic";
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}
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static Schematic *create(SchematicType type)
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{
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return new Schematic;
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}
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private:
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Server *m_server;
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};
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void generate_nodelist_and_update_ids(MapNode *nodes, size_t nodecount,
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std::vector<std::string> *usednodes, INodeDefManager *ndef);
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#endif
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