angarg12 / nucleogenesis

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

    let ct = this;

    ct.state = state;

    ct.data = data;

    ct.util = util;

    ct.format = format;

    ct.getReactorArea = function(player) {

      let level = player.global_upgrades.fusion_area;

      let upgrade = data.global_upgrades.fusion_area;

      let basePower = upgrade.power;

      let multiplier = upgrade.power_mult;

      return basePower * Math.floor(multiplier * level);

    };

    ct.getBandwidth = function(player){

        let level = player.global_upgrades.fusion_bandwidth;

        let upgrade = data.global_upgrades.fusion_bandwidth;

        let basePower = upgrade.power;

        let exp = upgrade.power_exp;

        return basePower * Math.pow(exp, level);

    }

    function getFermiRadius(resource) {

      let isotope = data.resources[resource];

      let A = isotope.energy/data.constants.U_TO_EV;

      return data.constants.FERMI_RADIUS * Math.pow(A, 0.3333);

    }

    function getZ(resource){

      let isotope = data.resources[resource];

      let element = Object.keys(isotope.elements)[0];

      return data.elements[element].number;

    }

    ct.getCapacity = function(resource, player) {

      let isotope = data.resources[resource];

      let element = Object.keys(isotope.elements)[0];

      let r = data.elements[element].van_der_waals;

      let area = Math.PI*r*r;

      return ct.getReactorArea(player)/area;

    };

    ct.getTime = function(player) {

      let time = ct.getFusionReaction(player).reactant.eV/ct.getBandwidth(player);

      time = Math.floor(time);

      return Math.max(1, time);

    }

    ct.getProductIsotope = function(beam, target) {

      let beamN = parseInt(beam, 10);

      let targetN = parseInt(target, 10);

      let beamZ = getZ(beam);

      let targetZ = getZ(target);

      let productN = beamN+targetN;

      let productZ = beamZ+targetZ;

      return data.resource_matrix[productZ][productN];

    };

    ct.getProductEnergy = function(beam, target) {

      let product = ct.getProductIsotope(beam, target);

      if(!product){

        return 0;

      }

      let beamBE = data.resources[beam].binding_energy;

      let targetBE = data.resources[target].binding_energy;

      let productBE = data.resources[product].binding_energy;

      return productBE - (beamBE + targetBE);

    };

    ct.getCoulombBarrier = function(beam, target) {

      let beamZ = getZ(beam);

      let beamR = getFermiRadius(beam);

      let targetZ = getZ(target);

      let targetR = getFermiRadius(target);

      let coulombBarrier = data.constants.COULOMB_CONSTANT*beamZ*targetZ*

              Math.pow(data.constants.ELECTRON_CHARGE, 2)/(beamR+targetR);

      return coulombBarrier * data.constants.JOULE_TO_EV;

    };

    ct.getYieldPercent = function(player) {

      let beam = state.player.fusion[0].beam;

      let target = state.player.fusion[0].target;

      let beamR = getFermiRadius(beam.name);

      let targetR = getFermiRadius(target.name);

      let beamArea = Math.PI*beamR*beamR;

      let targetArea = Math.PI*targetR*targetR;

      let beamPercentArea = beamArea*beam.number/ct.getReactorArea(player);

      let targetPercentArea = targetArea*target.number/ct.getReactorArea(player);

      return beamPercentArea*targetPercentArea;

    };

    ct.getYield = function(player){

      let percentYield = ct.getYieldPercent(player);

      let target = state.player.fusion[0].target.number;

      let beam = state.player.fusion[0].beam.number;

      // the yield comes from wherever source is more abundant

      let impacted = Math.max(target, beam);

      return Math.floor(percentYield*impacted);

    };

    ct.getFusionReaction = function(player) {

      let reaction = {

        reactant: {},

        product: {}

      };

      let beam = state.player.fusion[0].beam;

      let target = state.player.fusion[0].target;

      reaction.reactant[beam.name] = beam.number;

      reaction.reactant[target.name] = target.number;

      let coulombBarrier = ct.getCoulombBarrier(beam.name, target.name);

      reaction.reactant.eV = coulombBarrier*beam.number;

      let product = ct.getProductIsotope(beam.name, target.name);

      let numberYield = ct.getYield(player);

      reaction.product[product] = numberYield;

      // return the leftovers from the reaction

      if(numberYield < beam.number){

        reaction.product[beam.name] = beam.number - numberYield;

      }

      if(numberYield < target.number){

        reaction.product[target.name] = target.number - numberYield;

      }

      let energyExchange = ct.getProductEnergy(beam.name, target.name);

      if(energyExchange < 0){

        reaction.reactant.eV += energyExchange*numberYield;

      }else if(energyExchange > 0){

        reaction.product.eV = energyExchange*numberYield;

      }

      return reaction;

    };

    function activateFusion(player){

      let beam = player.fusion[0].beam;

      let target = player.fusion[0].target;

      if(player.resources[beam.name].number < beam.number ||

        player.resources[target.name].number < target.number){

        player.fusion[0].running = false;

        return;

      }

      player.resources[beam.name].number -= beam.number;

      player.resources[target.name].number -= target.number;

      player.fusion[0].running = true;

    }

    ct.stopFusion = function(player, fusion) {

      if(fusion.running){

        let beam = state.player.fusion[0].beam;

        let target = state.player.fusion[0].target;

        player.resources[beam.name].number += fusion.beam.number

        player.resources[target.name].number += fusion.target.number

      }

      fusion.eV = 0;

      fusion.active = false;

      fusion.running = false;

      fusion.run = false;

    }

    function updateFusion(player, fusion) {

        let bandwidth = ct.getBandwidth(player);

        let spent = Math.min(player.resources.eV.number, bandwidth);

        fusion.eV += spent;

        player.resources.eV.number -= spent;

    }

    function endFusion(player, fusion, reaction) {

      // energy is not lost! if there are leftovers, give them back to the player

      let leftover = fusion.eV - reaction.reactant.eV;

      reaction.product.eV = reaction.product.eV + leftover || leftover;

      // Reaction checks that the player has the quantity necessary

      // to react, but here eV is stored in the fusion object. By setting the cost to 0

      // we make sure that it always work

      reaction.reactant= {eV:0};

      reactionService.react(1, reaction, player);

      fusion.eV = 0;

      player.fusion[0].running = false;

    }

    function update(player){

      for(let fusion of player.fusion){

        if(!fusion.active){

          continue;

        }

        if(fusion.eV === 0 && fusion.run){

          activateFusion(player);

        }

        if(!fusion.running){

          continue;

        }

        updateFusion(player, fusion);

        let reaction = ct.getFusionReaction(player);

        if(fusion.eV >= reaction.reactant.eV){

          endFusion(player, fusion, reaction)

        }

      }

    }

    state.registerUpdate('fusion', update);

  }

]);