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Merge pull request #349 from deathcap/compressnbt

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[WIP] Compress compressedNbt on write
This commit is contained in:
Romain Beaumont 2016-02-16 10:03:11 +01:00
commit 35bc9282bc
1 changed files with 16 additions and 3 deletions
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19
src/datatypes/minecraft.js
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@ -73,14 +73,27 @@ function writeCompressedNbt(value, buffer, offset) {
buffer.writeInt16BE(-1,offset); buffer.writeInt16BE(-1,offset);
return offset+2; return offset+2;
} }
buffer.writeInt16BE(sizeOfNbt(value),offset); const nbtBuffer = new Buffer(sizeOfNbt(value));
return nbt.proto.write(value,buffer,offset+2,"nbt"); nbt.proto.write(value,nbtBuffer,0,"nbt");
const compressedNbt = zlib.gzipSync(nbtBuffer); // TODO: async
compressedNbt.writeUInt8(0, 9); // clear the OS field to match MC
buffer.writeInt16BE(compressedNbt.length,offset);
compressedNbt.copy(buffer,offset+2);
return offset+2+compressedNbt.length;
} }
function sizeOfCompressedNbt(value) { function sizeOfCompressedNbt(value) {
if(value==undefined) if(value==undefined)
return 2; return 2;
return 2+nbt.proto.sizeOf(value,"nbt");
const nbtBuffer = new Buffer(sizeOfNbt(value,"nbt"));
nbt.proto.write(value,nbtBuffer,0,"nbt");
const compressedNbt = zlib.gzipSync(nbtBuffer); // TODO: async
return 2+compressedNbt.length;
} }