Screeps Source Keeper Source

main.js

PathFinder.use(true);
for (var i in Game.creeps) { 
  var creep = Game.creeps[i], source = undefined; 
  if (!creep.room) { 
    continue; 
  }
  if (creep.memory.sourceId) { 
    source = Game.getObjectById(creep.memory.sourceId); 
  } 
  if(!source) { 
    source = creep.pos.findInRange(FIND_SOURCES, 5)[0] || creep.pos.findInRange(FIND_MINERALS, 5)[0];
    if (source) { 
      creep.memory.sourceId = source.id; 
    } 
  } 
  if (source) { 
    if (!creep.pos.isNearTo(source)) { 
      if (creep.moveTo(source, {reusePath: 50}) == ERR_NO_PATH) {
        delete creep.memory._move; 
        creep.moveTo(source, {reusePath: 50, ignoreDestructibleStructures: true}); 
      } 
    } 
  } 
  var enemies = creep.pos.findInRange(FIND_HOSTILE_CREEPS, 1, { filter: function (i) { return i.owner.username != 'Invader' } });
  if (enemies.length) { 
    enemies.sort(function (a, b) { 
      return a.hits - b.hits; 
    }); 
    creep.attack(enemies[0]); 
  } 
  var enemies = creep.pos.findInRange(FIND_HOSTILE_CREEPS, 3, { filter: function (i) { return i.owner.username != 'Invader' } });
  if (enemies.length) { 
    var massDmg = 0, distanceDmg = {1: 10, 2: 4, 3: 1}; 
    for (var i in enemies) { 
      var distance = Math.max(Math.abs(enemies[i].pos.x - creep.pos.x), Math.abs(enemies[i].pos.y - creep.pos.y)); 
      massDmg += distanceDmg[distance]; 
    }
    if (massDmg > 13) { 
      creep.rangedMassAttack(); 
    } else { 
      enemies.sort(function (a, b) { return a.hits - b.hits; }); 
      creep.rangedAttack(enemies[0]); 
    } 
  }
  for (var i in Memory.creeps) { 
    if (!Game.creeps[i]) {
      delete Memory.creeps[i]; 
    } 
  } 
}