mcpe json conv

mcpe_convert_protocol.js

var fs = require('fs');
var xml2js = require('xml2js');
var parser = new xml2js.Parser();

fs.readFile(__dirname + '/protocol.xml', function(err, data) {
  parser.parseString(data, function (err, result) {
    fs.writeFileSync('output.json', JSON.stringify(result, null, 2));
    
    var protocol = JSON.parse(fs.readFileSync(__dirname + '/output.json'));
    
    var mappings={};
    var fields_switch={};
    
    var _main = {
      "types":{
        "packet": [
          "container",
          [
            {
              "name": "name",
              "type": [
                "mapper",
                {
                  "type": "u8",
                  "mappings": mappings
                }
              ]
            },
            {
              "name": "params",
              "type": [
                "switch",
                {
                  "compareTo": "name",
                  "fields": fields_switch
                }
              ]
            }
          ]
        ]
      }
    }

    protocol.protocol.pdu.forEach(function(packet) {
      var packet_name = packet.$.name.toLowerCase().split(' ').join('_');
      var packet_id = packet.$.id;
      var packet_online = packet.$.online;
      var packet_type="packet_"+packet_name;
      
      mappings[packet_id]=packet_name;
      fields_switch[packet_name]=packet_type;
      var fields=[];

      if(packet.field != null) {
        packet.field.forEach(function(field) {
          var _field = {
            name: field.$.name.toLowerCase().split(' ').join('_'),
            type: field.$.type.toLowerCase().split(' ').join('_')
          };
          fields.push(_field);
        });
      }
      
      _main.types[packet_type]=["container",fields];
    });

    fs.unlinkSync('output.json');
    fs.writeFileSync('protocol.json', JSON.stringify(_main, null, 2));
  });
});