"use strict";

window.Markers = (function () {
  let config = [];
  let occupied = [];

  function getDefaultConfig() {
    const culturesSet = document.getElementById("culturesSet").value;
    const isFantasy = culturesSet.includes("Fantasy");

    return [
      {type: "volcanoes", icon: "🌋", dx: 52, px: 13, min: 10, each: 500, multiplier: 1, fn: [listVolcanoes, addVolcano]},
      {type: "hot-springs", icon: "♨️", dy: 52, min: 30, each: 1200, multiplier: 1, fn: [listHotSprings, addHotSpring]},
      {type: "mines", icon: "⛏️", dx: 48, px: 13, min: 1, each: 15, multiplier: 1, fn: [listMines, addMine]},
      {type: "bridges", icon: "🌉", px: 14, min: 1, each: 5, multiplier: 1, fn: [listBridges, addBridge]},
      {type: "inns", icon: "🍻", px: 14, min: 1, each: 100, multiplier: 1, fn: [listInns, addInn]},
      {type: "lighthouses", icon: "🚨", px: 14, min: 1, each: 2, multiplier: 1, fn: [listLighthouses, addLighthouse]},
      {type: "waterfalls", icon: "⟱", dy: 54, px: 16, min: 1, each: 5, multiplier: 1, fn: [listWaterfalls, addWaterfall]},
      {type: "battlefields", icon: "⚔️", dy: 52, min: 50, each: 700, multiplier: 1, fn: [listBattlefields, addBattlefield]},
      {type: "dungeons", icon: "🗝️", dy: 51, px: 13, min: 30, each: 200, multiplier: 1, fn: [listDungeons, addDungeon]},
      {type: "lake-monsters", icon: "🐉", dy: 48, min: 2, each: 10, multiplier: 1, fn: [listLakeMonsters, addLakeMonster]},
      {type: "sea-monsters", icon: "🦑", min: 50, each: 700, multiplier: 1, fn: [listSeaMonsters, addSeaMonster]},
      {type: "hill-monsters", icon: "👹", dy: 54, px: 13, min: 30, each: 600, multiplier: 1, fn: [listHillMonsters, addHillMonster]},
      {type: "sacred-mountains", icon: "🗻", dy: 48, min: 1, each: 5, multiplier: 1, fn: [listSacredMountains, addSacredMountain]},
      {type: "sacred-forests", icon: "🌳", min: 30, each: 1000, multiplier: 1, fn: [listSacredForests, addSacredForest]},
      {type: "sacred-pineries", icon: "🌲", px: 13, min: 30, each: 800, multiplier: 1, fn: [listSacredPineries, addSacredPinery]},
      {type: "sacred-palm-groves", icon: "🌴", px: 13, min: 1, each: 100, multiplier: 1, fn: [listSacredPalmGroves, addSacredPalmGrove]},
      {type: "brigands", icon: "💰", px: 13, min: 50, each: 100, multiplier: 1, fn: [listBrigands, addBrigands]},
      {type: "pirates", icon: "🏴‍☠️", dx: 51, min: 40, each: 300, multiplier: 1, fn: [listPirates, addPirates]},
      {type: "statues", icon: "🗿", min: 80, each: 1200, multiplier: 1, fn: [listStatues, addStatue]},
      {type: "ruines", icon: "🏺", min: 80, each: 1200, multiplier: 1, fn: [listRuins, addRuins]},
      {type: "portals", icon: "🌀", px: 14, min: 16, each: 8, multiplier: +isFantasy, fn: [listPortals, addPortal]}
    ];
  }

  const getConfig = () => config;

  const setConfig = newConfig => {
    config = newConfig;
  };

  const generate = function () {
    setConfig(getDefaultConfig());
    pack.markers = [];
    generateTypes();
  };

  const regenerate = () => {
    pack.markers = pack.markers.filter(({i, lock, cell}) => {
      if (lock) {
        occupied[cell] = true;
        return true;
      }
      const id = `marker${i}`;
      document.getElementById(id)?.remove();
      const index = notes.findIndex(note => note.id === id);
      if (index != -1) notes.splice(index, 1);
      return false;
    });

    generateTypes();
  };

  const add = marker => {
    const base = config.find(c => c.type === marker.type);
    if (base) {
      const {icon, type, dx, dy, px} = base;
      marker = addMarker({icon, type, dx, dy, px}, marker);
      base.fn[1]("marker" + marker.i, marker.cell);
      return marker;
    }

    const i = last(pack.markers)?.i + 1 || 0;
    pack.markers.push({...marker, i});
    occupied[marker.cell] = true;
    return {...marker, i};
  };

  function generateTypes() {
    TIME && console.time("addMarkers");

    config.forEach(({type, icon, dx, dy, px, min, each, multiplier, fn}) => {
      if (multiplier === 0) return;

      let candidates = Array.from(fn[0](pack));
      let quantity = getQuantity(candidates, min, each, multiplier);

      while (quantity && candidates.length) {
        const [cell] = extractAnyElement(candidates);
        const marker = addMarker({icon, type, dx, dy, px}, {cell});
        fn[1]("marker" + marker.i, cell);
        quantity--;
      }
    });

    occupied = [];
    TIME && console.timeEnd("addMarkers");
  }

  function getQuantity(array, min, each, multiplier) {
    if (!array.length || array.length < min / multiplier) return 0;
    const requestQty = Math.ceil((array.length / each) * multiplier);
    return array.length < requestQty ? array.length : requestQty;
  }

  function extractAnyElement(array) {
    const index = Math.floor(Math.random() * array.length);
    return array.splice(index, 1);
  }

  function getMarkerCoordinates(cell) {
    const {cells, burgs} = pack;
    const burgId = cells.burg[cell];

    if (burgId) {
      const {x, y} = burgs[burgId];
      return [x, y];
    }

    return cells.p[cell];
  }

  function addMarker(base, marker) {
    const i = last(pack.markers)?.i + 1 || 0;
    const [x, y] = getMarkerCoordinates(marker.cell);
    marker = {...base, x, y, ...marker, i};
    pack.markers.push(marker);
    occupied[marker.cell] = true;
    return marker;
  }

  function listVolcanoes({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] >= 70);
  }

  function addVolcano(id, cell) {
    const {cells} = pack;

    const proper = Names.getCulture(cells.culture[cell]);
    const name = P(0.3) ? "Mount " + proper : Math.random() > 0.3 ? proper + " Volcano" : proper;
    notes.push({id, name, legend: `Active volcano. Height: ${getFriendlyHeight(cells.p[cell])}`});
  }

  function listHotSprings({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] > 50);
  }

  function addHotSpring(id, cell) {
    const {cells} = pack;

    const proper = Names.getCulture(cells.culture[cell]);
    const temp = convertTemperature(gauss(35, 15, 20, 100));
    notes.push({id, name: proper + " Hot Springs", legend: `A hot springs area. Average temperature: ${temp}`});
  }

  function listMines({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] > 47 && cells.burg[i]);
  }

  function addMine(id, cell) {
    const {cells} = pack;

    const resources = {salt: 5, gold: 2, silver: 4, copper: 2, iron: 3, lead: 1, tin: 1};
    const resource = rw(resources);
    const burg = pack.burgs[cells.burg[cell]];
    const name = `${burg.name} — ${resource} mining town`;
    const population = rn(burg.population * populationRate * urbanization);
    const legend = `${burg.name} is a mining town of ${population} people just nearby the ${resource} mine`;
    notes.push({id, name, legend});
  }

  function listBridges({cells, burgs}) {
    const meanFlux = d3.mean(cells.fl.filter(fl => fl));
    return cells.i.filter(i => !occupied[i] && cells.burg[i] && cells.t[i] !== 1 && burgs[cells.burg[i]].population > 20 && cells.r[i] && cells.fl[i] > meanFlux);
  }

  function addBridge(id, cell) {
    const {cells} = pack;

    const burg = pack.burgs[cells.burg[cell]];
    const river = pack.rivers.find(r => r.i === pack.cells.r[cell]);
    const riverName = river ? `${river.name} ${river.type}` : "river";
    const name = river && P(0.2) ? river.name : burg.name;
    const weightedAdjectives = {
      stone: 10,
      wooden: 1,
      lengthy: 2,
      formidable: 2,
      rickety: 1,
      beaten: 1,
      weathered: 1
    };
    notes.push({id, name: `${name} Bridge`, legend: `A ${rw(weightedAdjectives)} bridge spans over the ${riverName} near ${burg.name}`});
  }

  function listInns({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] >= 20 && cells.road[i] > 4 && cells.pop[i] > 10);
  }

  function addInn(id, cell) {
    const colors = [
      "Dark",
      "Light",
      "Bright",
      "Golden",
      "White",
      "Black",
      "Red",
      "Pink",
      "Purple",
      "Blue",
      "Green",
      "Yellow",
      "Amber",
      "Orange",
      "Brown",
      "Grey"
    ];
    const animals = [
      "Antelope",
      "Ape",
      "Badger",
      "Bear",
      "Beaver",
      "Bison",
      "Boar",
      "Buffalo",
      "Cat",
      "Crane",
      "Crocodile",
      "Crow",
      "Deer",
      "Dog",
      "Eagle",
      "Elk",
      "Fox",
      "Goat",
      "Goose",
      "Hare",
      "Hawk",
      "Heron",
      "Horse",
      "Hyena",
      "Ibis",
      "Jackal",
      "Jaguar",
      "Lark",
      "Leopard",
      "Lion",
      "Mantis",
      "Marten",
      "Moose",
      "Mule",
      "Narwhal",
      "Owl",
      "Panther",
      "Rat",
      "Raven",
      "Rook",
      "Scorpion",
      "Shark",
      "Sheep",
      "Snake",
      "Spider",
      "Swan",
      "Tiger",
      "Turtle",
      "Wolf",
      "Wolverine",
      "Camel",
      "Falcon",
      "Hound",
      "Ox"
    ];
    const adjectives = [
      "New",
      "Good",
      "High",
      "Old",
      "Great",
      "Big",
      "Major",
      "Happy",
      "Main",
      "Huge",
      "Far",
      "Beautiful",
      "Fair",
      "Prime",
      "Ancient",
      "Golden",
      "Proud",
      "Lucky",
      "Fat",
      "Honest",
      "Giant",
      "Distant",
      "Friendly",
      "Loud",
      "Hungry",
      "Magical",
      "Superior",
      "Peaceful",
      "Frozen",
      "Divine",
      "Favorable",
      "Brave",
      "Sunny",
      "Flying"
    ];
    const methods = [
      "Boiled",
      "Grilled",
      "Roasted",
      "Spit-roasted",
      "Stewed",
      "Stuffed",
      "Jugged",
      "Mashed",
      "Baked",
      "Braised",
      "Poached",
      "Marinated",
      "Pickled",
      "Smoked",
      "Dried",
      "Dry-aged",
      "Corned",
      "Fried",
      "Pan-fried",
      "Deep-fried",
      "Dressed",
      "Steamed",
      "Cured",
      "Syrupped",
      "Flame-Broiled"
    ];
    const courses = [
      "beef",
      "pork",
      "bacon",
      "chicken",
      "lamb",
      "chevon",
      "hare",
      "rabbit",
      "hart",
      "deer",
      "antlers",
      "bear",
      "buffalo",
      "badger",
      "beaver",
      "turkey",
      "pheasant",
      "duck",
      "goose",
      "teal",
      "quail",
      "pigeon",
      "seal",
      "carp",
      "bass",
      "pike",
      "catfish",
      "sturgeon",
      "escallop",
      "pie",
      "cake",
      "pottage",
      "pudding",
      "onions",
      "carrot",
      "potato",
      "beet",
      "garlic",
      "cabbage",
      "eggplant",
      "eggs",
      "broccoli",
      "zucchini",
      "pepper",
      "olives",
      "pumpkin",
      "spinach",
      "peas",
      "chickpea",
      "beans",
      "rice",
      "pasta",
      "bread",
      "apples",
      "peaches",
      "pears",
      "melon",
      "oranges",
      "mango",
      "tomatoes",
      "cheese",
      "corn",
      "rat tails",
      "pig ears"
    ];
    const types = ["hot", "cold", "fire", "ice", "smoky", "misty", "shiny", "sweet", "bitter", "salty", "sour", "sparkling", "smelly"];
    const drinks = [
      "wine",
      "brandy",
      "jinn",
      "whisky",
      "rom",
      "beer",
      "cider",
      "mead",
      "liquor",
      "spirit",
      "vodka",
      "tequila",
      "absinthe",
      "nectar",
      "milk",
      "kvass",
      "kumis",
      "tea",
      "water",
      "juice",
      "sap"
    ];

    const typeName = P(0.3) ? "inn" : "tavern";
    const isAnimalThemed = P(0.7);
    const animal = ra(animals);
    const name = isAnimalThemed ? (P(0.6) ? ra(colors) + " " + animal : ra(adjectives) + " " + animal) : ra(adjectives) + " " + capitalize(typeName);
    const meal = isAnimalThemed && P(0.3) ? animal : ra(courses);
    const course = `${ra(methods)} ${meal}`.toLowerCase();
    const drink = `${P(0.5) ? ra(types) : ra(colors)} ${ra(drinks)}`.toLowerCase();
    const legend = `A big and famous roadside ${typeName}. Delicious ${course} with ${drink} is served here`;
    notes.push({id, name: "The " + name, legend});
  }

  function listLighthouses({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.harbor[i] > 6 && cells.c[i].some(c => cells.h[c] < 20 && cells.road[c]));
  }

  function addLighthouse(id, cell) {
    const {cells} = pack;

    const proper = cells.burg[cell] ? pack.burgs[cells.burg[cell]].name : Names.getCulture(cells.culture[cell]);
    notes.push({id, name: getAdjective(proper) + " Lighthouse" + name, legend: `A lighthouse to serve as a beacon for ships in the open sea`});
  }

  function listWaterfalls({cells}) {
    return cells.i.filter(i => cells.r[i] && !occupied[i] && cells.h[i] >= 50 && cells.c[i].some(c => cells.h[c] < 40 && cells.r[c]));
  }

  function addWaterfall(id, cell) {
    const {cells} = pack;

    const descriptions = [
      "A gorgeous waterfall flows here",
      "The rapids of an exceptionally beautiful waterfall",
      "An impressive waterfall has cut through the land",
      "The cascades of a stunning waterfall",
      "A river drops down from a great height forming a wonderous waterfall",
      "A breathtaking waterfall cuts through the landscape"
    ];

    const proper = cells.burg[cell] ? pack.burgs[cells.burg[cell]].name : Names.getCulture(cells.culture[cell]);
    notes.push({id, name: getAdjective(proper) + " Waterfall" + name, legend: `${ra(descriptions)}`});
  }

  function listBattlefields({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.state[i] && cells.pop[i] > 2 && cells.h[i] < 50 && cells.h[i] > 25);
  }

  function addBattlefield(id, cell) {
    const {cells, states} = pack;

    const state = states[cells.state[cell]];
    if (!state.campaigns) state.campaigns = BurgsAndStates.generateCampaign(state);
    const campaign = ra(state.campaigns);
    const date = generateDate(campaign.start, campaign.end);
    const name = Names.getCulture(cells.culture[cell]) + " Battlefield";
    const legend = `A historical battle of the ${campaign.name}. \r\nDate: ${date} ${options.era}`;
    notes.push({id, name, legend});
  }

  function listDungeons({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.pop[i] && cells.pop[i] < 3);
  }

  function addDungeon(id, cell) {
    const dungeonSeed = `${seed}${cell}`;
    const name = "Dungeon";
    const legend = `<div>Undiscovered dungeon. See <a href="https://watabou.github.io/one-page-dungeon/?seed=${dungeonSeed}" target="_blank">One page dungeon</a></div><iframe src="https://watabou.github.io/one-page-dungeon/?seed=${dungeonSeed}" sandbox="allow-scripts allow-same-origin"></iframe>`;
    notes.push({id, name, legend});
  }

  function listLakeMonsters({features}) {
    return features.filter(feature => feature.type === "lake" && feature.group === "freshwater" && !occupied[feature.firstCell]).map(feature => feature.firstCell);
  }

  function addLakeMonster(id, cell) {
    const lake = pack.features[pack.cells.f[cell]];

    // Check that the feature is a lake in case the user clicked on a wrong
    // square
    if (lake.type !== "lake") return;

    const name = `${lake.name} Monster`;
    const length = gauss(10, 5, 5, 100);
    const legend = `Rumors say a relic monster of ${length} ${heightUnit.value} long inhabits ${lake.name} Lake. Truth or lie, folks are afraid to fish in the lake`;
    notes.push({id, name, legend});
  }

  function listSeaMonsters({cells, features}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] < 20 && cells.road[i] && features[cells.f[i]].type === "ocean");
  }

  function addSeaMonster(id, cell) {
    const name = `${Names.getCultureShort(0)} Monster`;
    const length = gauss(25, 10, 10, 100);
    const legend = `Old sailors tell stories of a gigantic sea monster inhabiting these dangerous waters. Rumors say it can be ${length} ${heightUnit.value} long`;
    notes.push({id, name, legend});
  }

  function listHillMonsters({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] >= 50 && cells.pop[i]);
  }

  function addHillMonster(id, cell) {
    const {cells} = pack;

    const adjectives = [
      "great",
      "big",
      "huge",
      "prime",
      "golden",
      "proud",
      "lucky",
      "fat",
      "giant",
      "hungry",
      "magical",
      "superior",
      "terrifying",
      "horrifying",
      "feared"
    ];
    const subjects = ["Locals", "Elders", "Inscriptions", "Tipplers", "Legends", "Whispers", "Rumors", "Journeying folk", "Tales"];
    const species = [
      "Ogre",
      "Troll",
      "Cyclops",
      "Giant",
      "Monster",
      "Beast",
      "Dragon",
      "Undead",
      "Ghoul",
      "Vampire",
      "Hag",
      "Banshee",
      "Bearded Devil",
      "Roc",
      "Hydra",
      "Warg"
    ];
    const modusOperandi = [
      "steals cattle at night",
      "prefers eating children",
      "doesn't mind of human flesh",
      "keeps the region at bay",
      "eats kids whole",
      "abducts young women",
      "terrorizes the region",
      "harasses travelers in the area",
      "snatches people from homes",
      "attacks anyone who dares to approach its lair",
      "attacks unsuspecting victims"
    ];

    const monster = ra(species);
    const toponym = Names.getCulture(cells.culture[cell]);
    const name = `${toponym} ${monster}`;
    const legend = `${ra(subjects)} speak of a ${ra(adjectives)} ${monster} who inhabits ${toponym} hills and ${ra(modusOperandi)}`;
    notes.push({id, name, legend});
  }

  // Sacred mountains spawn on lonely mountains
  function listSacredMountains({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] >= 70 && cells.c[i].some(c => cells.culture[c]) && cells.c[i].every(c => cells.h[c] < 60));
  }

  function addSacredMountain(id, cell) {
    const {cells, cultures} = pack;

    const culture = cells.c[cell].map(c => cells.culture[c]).find(c => c);
    const name = `${Names.getCulture(culture)} Mountain`;
    const height = getFriendlyHeight(cells.p[cell]);
    const legend = `A sacred mountain of ${cultures[culture].name} culture. Height: ${height}`;
    notes.push({id, name, legend});
  }

  // Sacred forests spawn on temperate forests
  function listSacredForests({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.culture[i] && [6, 8].includes(cells.biome[i]));
  }

  function addSacredForest(id, cell) {
    const {cells, cultures} = pack;

    const culture = cells.culture[cell];
    const name = `${Names.getCulture(culture)} Forest`;
    const legend = `A sacred forest of ${cultures[culture].name} culture`;
    notes.push({id, name, legend});
  }

  // Sacred pineries spawn on boreal forests
  function listSacredPineries({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.culture[i] && cells.biome[i] === 9);
  }

  function addSacredPinery(id, cell) {
    const {cells, cultures} = pack;

    const culture = cells.culture[cell];
    const name = `${Names.getCulture(culture)} Pinery`;
    const legend = `A sacred pinery of ${cultures[culture].name} culture`;
    notes.push({id, name, legend});
  }

  // Sacred palm groves spawn on oasises
  function listSacredPalmGroves({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.culture[i] && cells.biome[i] === 1 && cells.pop[i] > 1 && cells.road[i]);
  }

  function addSacredPalmGrove(id, cell) {
    const {cells, cultures} = pack;

    const culture = cells.culture[cell];
    const name = `${Names.getCulture(culture)} Palm Grove`;
    const legend = `A sacred palm grove of ${cultures[culture].name} culture`;
    notes.push({id, name, legend});
  }

  function listBrigands({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.culture[i] && cells.road[i] > 4);
  }

  function addBrigands(id, cell) {
    const {cells} = pack;

    const animals = [
      "Apes",
      "Badgers",
      "Bears",
      "Beavers",
      "Bisons",
      "Boars",
      "Cats",
      "Crows",
      "Dogs",
      "Foxes",
      "Hares",
      "Hawks",
      "Hyenas",
      "Jackals",
      "Jaguars",
      "Leopards",
      "Lions",
      "Owls",
      "Panthers",
      "Rats",
      "Ravens",
      "Rooks",
      "Scorpions",
      "Sharks",
      "Snakes",
      "Spiders",
      "Tigers",
      "Wolfs",
      "Wolverines",
      "Falcons"
    ];
    const types = {brigands: 4, bandits: 3, robbers: 1, highwaymen: 1};

    const culture = cells.culture[cell];
    const biome = cells.biome[cell];
    const height = cells.p[cell];
    const locality =
      height >= 70
      ? "highlander"
      : [1, 2].includes(biome)
      ? "desert"
      : [3, 4].includes(biome)
      ? "mounted"
      : [5, 6, 7, 8, 9].includes(biome)
      ? "forest"
      : biome === 12
      ? "swamp"
      : "angry";
    const name = `${Names.getCulture(culture)} ${ra(animals)}`;
    const legend = `A gang of ${locality} ${rw(types)}`;
    notes.push({id, name, legend});
  }

  // Pirates spawn on sea routes
  function listPirates({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.h[i] < 20 && cells.road[i]);
  }

  function addPirates(id, cell) {
    const name = `Pirates`;
    const legend = `Pirate ships have been spotted in these waters`;
    notes.push({id, name, legend});
  }

  function listStatues({cells}) {
      return cells.i.filter(i => !occupied[i] && cells.h[i] >= 20 && cells.h[i] < 40);
  }

  function addStatue(id, cell) {
    const {cells} = pack;

    const variants = ["Statue", "Obelisk", "Monument", "Column", "Monolith", "Pillar", "Megalith", "Stele", "Runestone", "Sculpture", "Effigy", "Idol"];
    const scripts = {
      cypriot: "𐠁𐠂𐠃𐠄𐠅𐠈𐠊𐠋𐠌𐠍𐠎𐠏𐠐𐠑𐠒𐠓𐠔𐠕𐠖𐠗𐠘𐠙𐠚𐠛𐠜𐠝𐠞𐠟𐠠𐠡𐠢𐠣𐠤𐠥𐠦𐠧𐠨𐠩𐠪𐠫𐠬𐠭𐠮𐠯𐠰𐠱𐠲𐠳𐠴𐠵𐠷𐠸𐠼𐠿     ",
      geez: "ሀለሐመሠረሰቀበተኀነአከወዐዘየደገጠጰጸፀፈፐ   ",
      coptic: "ⲲⲴⲶⲸⲺⲼⲾⳀⳁⳂⳃⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢⳤ⳥⳧⳩⳪ⳫⳬⳭⳲ⳹⳾   ",
      tibetan: "ༀ༁༂༃༄༅༆༇༈༉༊་༌༐༑༒༓༔༕༖༗༘༙༚༛༜༠༡༢༣༤༥༦༧༨༩༪༫༬༭༮༯༰༱༲༳༴༵༶༷༸༹༺༻༼༽༾༿",
      mongolian: "᠀᠐᠑᠒ᠠᠡᠦᠧᠨᠩᠪᠭᠮᠯᠰᠱᠲᠳᠵᠻᠼᠽᠾᠿᡀᡁᡆᡍᡎᡏᡐᡑᡒᡓᡔᡕᡖᡗᡙᡜᡝᡞᡟᡠᡡᡭᡮᡯᡰᡱᡲᡳᡴᢀᢁᢂᢋᢏᢐᢑᢒᢓᢛᢜᢞᢟᢠᢡᢢᢤᢥᢦ"
    };

    const culture = cells.culture[cell];

    const variant = ra(variants);
    const name = `${Names.getCulture(culture)} ${variant}`;
    const script = scripts[ra(Object.keys(scripts))];
    const inscription = Array(rand(40, 100))
      .fill(null)
      .map(() => ra(script))
      .join("");
    const legend = `An ancient ${variant.toLowerCase()}. It has an inscription, but no one can translate it:
        <div style="font-size: 1.8em; line-break: anywhere;">${inscription}</div>`;
    notes.push({id, name, legend});
  }

  function listRuins({cells}) {
    return cells.i.filter(i => !occupied[i] && cells.culture[i] && cells.h[i] >= 20 && cells.h[i] < 60);
  }

  function addRuins(id, cell) {
    const types = [
      "City",
      "Town",
      "Settlement",
      "Pyramid",
      "Fort",
      "Stronghold",
      "Temple",
      "Sacred site",
      "Mausoleum",
      "Outpost",
      "Fortification",
      "Fortress",
      "Castle"
    ];

    const ruinType = ra(types);
    const name = `Ruined ${ruinType}`;
    const legend = `Ruins of an ancient ${ruinType.toLowerCase()}. Untold riches may lie within.`;
    notes.push({id, name, legend});
  }

  function listPortals({burgs}) {
    return burgs
      .slice(1, Math.ceil(burgs.length / 10) + 1)
      .filter(({cell}) => !occupied[cell])
      .map(burg => burg.cell);
  }

  function addPortal(id, cell) {
    const {cells, burgs} = pack;

    // Portals can only be added to burgs
    if (cells.burg[cell]) return;
    const burgName = burgs[cells.burg[cell]].name;

    const name = `${burgName} Portal`;
    const legend = `An element of the magic portal system connecting major cities. Portals installed centuries ago, but still work fine`;
    notes.push({id, name, legend});
  }

  return {add, generate, regenerate, getConfig, setConfig};
})();