/*
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
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
std::ostringstream ss(std::ios_base::binary);
writeU32(ss, MTSCHEM_FILE_SIGNATURE); // signature
writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
writeV3S16(ss, size); // schematic size
for (int y = 0; y != size.Y; y++) // Y slice probabilities
writeU8(ss, slice_probs[y]);
std::vector<content_t> usednodes;
int nodecount = size.X * size.Y * size.Z;
build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
u16 numids = usednodes.size();
writeU16(ss, numids); // name count
for (int i = 0; i != numids; i++)
ss << serializeString(ndef->get(usednodes[i]).name); // node names
// compressed bulk node data
MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE, schematic,
nodecount, 2, 2, true);
fs::safeWriteToFile(filename, ss.str());
}
/*
Minetest Schematic File Format
All values are stored in big-endian byte order.
[u32] signature: 'MTSM'
[u16] version: 1
[u16] size X
[u16] size Y
[u16] size Z
[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
}
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
std::ofstream os(filename.c_str(), std::ios_base::binary);
writeU32(os, MTSCHEM_FILE_SIGNATURE); // signature
writeU16(os, 1); // version
writeV3S16(os, size); // schematic size
std::vector<content_t> usednodes;
int nodecount = size.X * size.Y * size.Z;
build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
u16 numids = usednodes.size();
writeU16(os, numids); // name count
for (int i = 0; i != numids; i++)
os << serializeString(ndef->get(usednodes[i]).name); // node names
// compressed bulk node data
MapNode::serializeBulk(os, SER_FMT_VER_HIGHEST, schematic,
nodecount, 2, 2, true);
}
