matchmaker-0.8.3.json

{
  "by_tank": {
    "bison_i":         [3, 5],
    "t2_lt":           [2, 4],
    "m3_stuart_ll":    [3, 4],
    "bt-sv":           [3, 4],
    "pzii_j":          [3, 4],
    "t-127":           [3, 4],
    "t-50":            [5, 9],
    "vk1602":          [5, 9],
    "valentine_ll":    [4, 4],
    "b-1bis_captured": [4, 4],
    "a-32":            [4, 5],
    "amx40":           [4, 6],
    "gb04_valentine":  [4, 6],
    "gb60_covenanter": [4, 6],
    "elc_amx":         [6, 9],
    "pziv_hydro":      [5, 6],
    "churchill_ll":    [5, 6],
    "matilda_ii_ll":   [5, 6],
    "t14":             [5, 6],
    "kv-220":          [5, 6],
    "m4a2e4":          [5, 6],
    "gb20_crusader":   [5, 7],
    "pzv_pziv":        [6, 7],
    "gb63_tog_ii":     [6, 7],
    "panther_m10":     [7, 8],
    "kv-5":            [8, 9],
    "object252":       [8, 9],
    "fcm_50t":         [8, 9],
    "ch01_type59":     [8, 9],
    "jagdtiger_sdkfz_185": [8, 9],
    "t26_e4_superpershing": [8, 9],
    "gb68_matilda_black_prince": [5, 6],
    "pzv_pziv_ausf_alfa": [6, 7]
  },
  "by_type": {
    "lt": [
             [1, 2],
             [2, 3],
             [3, 5],
             [4, 8],
             [7, 12],
             [7, 10],
             [8, 11],
             [9, 12],
             null,
             null
            ],
    "mt": [
             [1, 2],
             [2, 3],
             [3, 5],
             [4, 6],
             [5, 7],
             [6, 8],
             [7, 9],
             [8, 10],
             [9, 11],
             [10, 12]
            ],
    "ht": [
             null,
             [2, 3],
             [3, 5],
             [4, 5],
             [5, 7],
             [6, 8],
             [7, 9],
             [8, 10],
             [9, 11],
             [10, 12]
            ],
    "td": [
             null,
             [2, 3],
             [3, 5],
             [4, 6],
             [5, 7],
             [6, 8],
             [7, 9],
             [8, 10],
             [9, 11],
             [10, 12]
            ],
    "spg": [
              null,
              [3, 4],
              [4, 6],
              [5, 8],
              [7, 9],
              [9, 10],
              [10, 11],
              [11, 12],
              null,
              null
             ]
  }
}

wot-vehicle-parser.rb

require "nokogiri"
require "json"
require "open-uri"

@url_base = "http://worldoftanks.com/"

@type_map = {
  "Light Tanks" => "lt",
  "Medium Tanks" => "mt",
  "Heavy Tanks" => "ht",
  "Tank Destroyers" => "td",
  "SPGs" => "spg"
}

@tier_map = {
  "I" => 1,
  "II" => 2,
  "III" => 3,
  "IV" => 4,
  "V" => 5,
  "VI" => 6,
  "VII" => 7,
  "VIII" => 8,
  "IX" => 9,
  "X" => 10
}

@matchmaker = JSON.load(open("matchmaker-0.8.3.json"))

def tank_battle_tiers(id, type, tier)
  @matchmaker["by_tank"][id] || @matchmaker["by_type"][type][tier - 1]
end

def parse_tank(type, tank_node)
  name = tank_node.xpath(".//*[contains(@class, 'b-encyclopedia-list_name')]").first.text.strip
  relative_url = tank_node.xpath(".//a[contains(@class, 'b-encyclopedia-list_linc')]/@href").first.text
  tier_text = tank_node.xpath(".//*[contains(@class, 'b-encyclopedia-list_level')]").first.text
  
  id = relative_url.split("/").last.downcase
  url = "#{@url_base}#{relative_url}"
  tier = @tier_map[tier_text]

  (bt_min, bt_max) = tank_battle_tiers(id, type, tier)
  
  {
    :id => id,
    :name => name,
    :type => type,
    :tier => tier,
    :url => url,
    :battle_tier_min => bt_min,
    :battle_tier_max => bt_max
  }
end

def parse_tank_data(html)
  doc = Nokogiri::HTML(html)
  type_nodes = doc.xpath("//*[contains(@class, 'b-encyclopedia-type')]")
  type_nodes.collect do |type_node|
    type = @type_map[type_node.text.strip]
    tank_nodes = type_node.xpath("following-sibling::*//*[contains(@class, 'b-encyclopedia-list_point')]")
    tanks = tank_nodes.collect {|tank_node| parse_tank(type, tank_node) }
  end.flatten
end

html = open("wot-encyclopedia.html").read
tanks = parse_tank_data(html)

puts tanks.to_json