minecraft-java-core
Version:
A library starting minecraft game NW.js and Electron.js
63 lines • 1.88 kB
JavaScript
;
/**
* This code is distributed under the CC-BY-NC 4.0 license:
* https://creativecommons.org/licenses/by-nc/4.0/
*
* Original author: Luuxis
*/
Object.defineProperty(exports, "__esModule", { value: true });
function CustomBuffer(existingBuffer = Buffer.alloc(48)) {
let buffer = existingBuffer;
let offset = 0;
this.writeletInt = (val) => {
while (true) {
if ((val & 0xFFFFFF80) == 0) {
return this.writeUByte(val);
}
this.writeUByte(val & 0x7F | 0x80);
val = val >>> 7;
}
};
this.writeString = (string) => {
this.writeletInt(string.length);
if (offset + string.length >= buffer.length)
Buffer.concat([buffer, new Buffer(string.length)]);
buffer.write(string, offset, string.length, "UTF-8");
offset += string.length;
};
this.writeUShort = (val) => {
this.writeUByte(val >> 8);
this.writeUByte(val & 0xFF);
};
this.writeUByte = (val) => {
if (offset >= buffer.length) {
buffer = Buffer.concat([buffer, new Buffer(50)]);
}
buffer.writeUInt8(val, offset++);
};
this.readletInt = function () {
let val = 0;
let count = 0;
while (true) {
let i = buffer.readUInt8(offset++);
val |= (i & 0x7F) << count++ * 7;
if ((i & 0x80) != 128)
break;
}
return val;
};
this.readString = () => {
let length = this.readletInt();
let str = buffer.toString("UTF-8", offset, offset + length);
offset += length;
return str;
};
this.buffer = () => {
return buffer.slice(0, offset);
};
this.offset = () => {
return offset;
};
}
exports.default = CustomBuffer;
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