role.harvester.js

var roleHarvester = {

    /** @param {Creep} creep **/
    run: function(creep) {
        if(creep.carry.energy < creep.carryCapacity) {
            var sources = creep.room.find(FIND_SOURCES);
            if(creep.harvest(sources[0]) == ERR_NOT_IN_RANGE) {
                creep.moveTo(sources[0], {visualizePathStyle: {stroke: '#ffaa00'}});
            }
        }
        else {
            var targets = creep.room.find(FIND_STRUCTURES, {
                filter: (structure) => {
                    return (structure.structureType == STRUCTURE_EXTENSION ||
                        structure.structureType == STRUCTURE_SPAWN ||
                        structure.structureType == STRUCTURE_TOWER) && structure.energy < structure.energyCapacity;
                }
            });
            if(targets.length > 0) {
                if(creep.transfer(targets[0], RESOURCE_ENERGY) == ERR_NOT_IN_RANGE) {
                    creep.moveTo(targets[0], {visualizePathStyle: {stroke: '#ffffff'}});
                }
            }
        }
    },
    create: function() {
        var newName = 'Harvester' + Game.time;
        console.log('Spawning new harvester: ' + newName);    
        Game.spawns[constants.SPAWN1_NAME].spawnCreep(BASIC_CREEP, newName,
            {memory: {role: constants.ROLE_HARVESTER}});
    }
};

var BASIC_CREEP = [WORK,CARRY,MOVE];
module.exports = roleHarvester;