angarg12 / nucleogenesis

function sidebar(state, visibility, data, format, util) {

  let ct = this;

  ct.state = state;

  ct.data = data;

  ct.format = format;

  ct.util = util;

  // returns the elements selected plus empty string ''

  // '' represents misc resources and it is always 'active'

  ct.activeElements = function(player) {

    let result = [];

    for(let slot of player.element_slots) {

      if(slot){

        result.push(slot.element);

      }

    }

    result.push('');

    return result;

  }

  ct.visibleResources = function(element) {

    return visibility.visible(data.resources, isResourceVisible, element);

  };

  function isResourceVisible(name, currentElement) {

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

      return false;

    }

    // This is for global resources e.g. protons, which do not

    // belong to any element

    let elements = data.resources[name].elements;

    if (Object.keys(elements).length === 0 && currentElement === '') {

      return true;

    }

    for (let element in elements) {

      if (currentElement === element) {

        return true;

      }

    }

    return false;

  }

}