init

src/main.js

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+var roleHarvester = require('role.harvester');
+var roleUpgrader = require('role.upgrader');
+var roleBuilder = require('role.builder');
+
+module.exports.loop = function () {
+
+    var tower = Game.getObjectById('TOWER_ID');
+    if(tower) {
+        var closestDamagedStructure = tower.pos.findClosestByRange(FIND_STRUCTURES, {
+            filter: (structure) => structure.hits < structure.hitsMax
+        });
+        if(closestDamagedStructure) {
+            tower.repair(closestDamagedStructure);
+        }
+
+        var closestHostile = tower.pos.findClosestByRange(FIND_HOSTILE_CREEPS);
+        if(closestHostile) {
+            tower.attack(closestHostile);
+        }
+    }
+
+    for(var name in Game.creeps) {
+        var creep = Game.creeps[name];
+        if(creep.memory.role == 'harvester') {
+            roleHarvester.run(creep);
+        }
+        if(creep.memory.role == 'upgrader') {
+            roleUpgrader.run(creep);
+        }
+        if(creep.memory.role == 'builder') {
+            roleBuilder.run(creep);
+        }
+    }
+}

src/role.builder.js

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+var roleBuilder = {
+
+    /** @param {Creep} creep **/
+    run: function(creep) {
+
+        if(creep.memory.building && creep.store[RESOURCE_ENERGY] == 0) {
+            creep.memory.building = false;
+            creep.say('🔄 harvest');
+        }
+        if(!creep.memory.building && creep.store.getFreeCapacity() == 0) {
+            creep.memory.building = true;
+            creep.say('🚧 build');
+        }
+
+        if(creep.memory.building) {
+            var targets = creep.room.find(FIND_CONSTRUCTION_SITES);
+            if(targets.length) {
+                if(creep.build(targets[0]) == ERR_NOT_IN_RANGE) {
+                    creep.moveTo(targets[0], {visualizePathStyle: {stroke: '#ffffff'}});
+                }
+            }
+        }
+        else {
+            var sources = creep.room.find(FIND_SOURCES);
+            if(creep.harvest(sources[0]) == ERR_NOT_IN_RANGE) {
+                creep.moveTo(sources[0], {visualizePathStyle: {stroke: '#ffaa00'}});
+            }
+        }
+    }
+};
+
+module.exports = roleBuilder;

src/role.harvester.js

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+var roleHarvester = {
+
+    /** @param {Creep} creep **/
+    run: function(creep) {
+        if(creep.store.getFreeCapacity() > 0) {
+            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.store.getFreeCapacity(RESOURCE_ENERGY) > 0;
+                }
+            });
+            if(targets.length > 0) {
+                if(creep.transfer(targets[0], RESOURCE_ENERGY) == ERR_NOT_IN_RANGE) {
+                    creep.moveTo(targets[0], {visualizePathStyle: {stroke: '#ffffff'}});
+                }
+            }
+        }
+    }
+};
+
+module.exports = roleHarvester;

src/role.upgrader.js

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+var roleUpgrader = {
+
+    /** @param {Creep} creep **/
+    run: function(creep) {
+
+        if(creep.memory.upgrading && creep.store[RESOURCE_ENERGY] == 0) {
+            creep.memory.upgrading = false;
+            creep.say('🔄 harvest');
+        }
+        if(!creep.memory.upgrading && creep.store.getFreeCapacity() == 0) {
+            creep.memory.upgrading = true;
+            creep.say('⚡ upgrade');
+        }
+
+        if(creep.memory.upgrading) {
+            if(creep.upgradeController(creep.room.controller) == ERR_NOT_IN_RANGE) {
+                creep.moveTo(creep.room.controller, {visualizePathStyle: {stroke: '#ffffff'}});
+            }
+        }
+        else {
+            var sources = creep.room.find(FIND_SOURCES);
+            if(creep.harvest(sources[0]) == ERR_NOT_IN_RANGE) {
+                creep.moveTo(sources[0], {visualizePathStyle: {stroke: '#ffaa00'}});
+            }
+        }
+    }
+};
+
+module.exports = roleUpgrader;