screep/controller_contributer.js

module.exports = {
    run(creep) {
        if (Game.spawns.Spawn1.store.getFreeCapacity(RESOURCE_ENERGY) == 0) {
            if (creep.transfer(Game.spawns.Spawn1.room.controller, RESOURCE_ENERGY) == ERR_NOT_IN_RANGE) {
                creep.moveTo(Game.spawns.Spawn1.room.controller.pos);
            }
        }
    }
}