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Schematics: Reorganize (de)serialization and add Lua serialization API

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This commit is contained in:
kwolekr 2015-04-12 16:40:50 -04:00
parent 39fd4da7a0
commit b2a89c04b2
5 changed files with 257 additions and 92 deletions
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48
src/mg_schematic.h
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@ -30,10 +30,40 @@ class MMVManip;
class PseudoRandom;
class NodeResolver;
/*
Minetest Schematic File Format
All values are stored in big-endian byte order.
[u32] signature: 'MTSM'
[u16] version: 3
[u16] size X
[u16] size Y
[u16] size Z
For each Y:
[u8] slice probability value
[Name-ID table] Name ID Mapping Table
[u16] name-id count
For each name-id mapping:
[u16] name length
[u8[]] name
ZLib deflated {
For each node in schematic: (for z, y, x)
[u16] content
For each node in schematic:
[u8] probability of occurance (param1)
For each node in schematic:
[u8] param2
}
Version changes:
1 - Initial version
2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
3 - Added y-slice probabilities; this allows for variable height structures
*/
/////////////////// Schematic flags
#define SCHEM_CIDS_UPDATED 0x08
#define MTSCHEM_FILE_SIGNATURE 0x4d54534d // 'MTSM'
#define MTSCHEM_FILE_VER_HIGHEST_READ 3
#define MTSCHEM_FILE_VER_HIGHEST_WRITE 3
@ -46,6 +76,11 @@ enum SchematicType
SCHEMATIC_NORMAL,
};
enum SchematicFormatType {
SCHEM_FMT_HANDLE,
SCHEM_FMT_MTS,
SCHEM_FMT_LUA,
};
class Schematic : public ObjDef, public NodeResolver {
public:
@ -68,14 +103,23 @@ public:
bool loadSchematicFromFile(const char *filename, INodeDefManager *ndef,
StringMap *replace_names);
void saveSchematicToFile(const char *filename, INodeDefManager *ndef);
bool saveSchematicToFile(const char *filename, INodeDefManager *ndef);
bool getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2);
bool deserializeFromMts(std::istream *is, INodeDefManager *ndef,
std::vector<std::string> *names);
bool serializeToMts(std::ostream *os, INodeDefManager *ndef);
bool serializeToLua(std::ostream *os,
INodeDefManager *ndef, bool use_comments);
void placeStructure(Map *map, v3s16 p, u32 flags,
Rotation rot, bool force_placement, INodeDefManager *nef);
void applyProbabilities(v3s16 p0,
std::vector<std::pair<v3s16, u8> > *plist,
std::vector<std::pair<s16, u8> > *splist);
std::string getAsLuaTable(INodeDefManager *ndef, bool use_comments);
};
class SchematicManager : public ObjDefManager {