angarg12 / nucleogenesis

function dark(state, format, visibility, upgrade, data, util) {

  let ct = this;

  ct.state = state;

  ct.data = data;

  ct.util = util;

  ct.format = format;

  ct.darkProduction = function() {

    let production = 0;

    for (let element in data.elements) {

      let exotic = data.elements[element].exotic;

      if (!state.player.resources[exotic].unlocked) {

        continue;

      }

      production += Math.floor(Math.max(0, Math.log(state.player.resources[exotic].number)));

    }

    return production;

  };

  ct.darkPrestige = function() {

    let resources = state.player.resources;

    let production = ct.darkProduction();

    resources.dark_matter.number += production;

    resources.dark_matter.unlocked = true;

    for(let key in data.elements){

      let element = data.elements[key];

      state.player.resources[element.exotic].number = 0;

      for(let up in data.exotic_upgrades){

        state.player.exotic_upgrades[key][up] = false;

      }

    }

    for(let slot of state.player.element_slots){

      if(!slot){

        continue;

      }

      upgrade.resetElement(state.player, slot.element);

    }

    for(let i in state.player.element_slots){

      state.player.element_slots[i] = null;

    }

  };

  ct.buyDarkUpgrade = function(name) {

    let upgrades = state.player.dark_upgrades;

    let price = data.dark_upgrades[name].price;

    let currency = 'dark_matter';

    upgrade.buyUpgrade(state.player,

      upgrades,

      data.dark_upgrades[name],

      name,

      price,

      currency);

  };

  ct.visibleDarkUpgrades = function() {

    return visibility.visible(data.dark_upgrades, isDarkUpgradeVisible, 0);

  };

  // here we receive not the name of the element, but the index in the element_slots

  function isDarkUpgradeVisible(name, index) {

    return visibility.isUpgradeVisible(name, index, data.dark_upgrades[name]);

  }

}