Screeps - Guide to Mineral Mining and Market Orders

A little guide for the game Screeps, on how to mine minerals and make your first credits by selling some to a market order. Screeps is a real-time strategy Javascript-programming game. Code used in the video: -------------------- Extractor -------------------- var roleExtractor = { /** @param {Creep} creep **/ run: function(creep) { if (creep.memory.extracting && creep.carryCapacity == _.sum(creep.carry)) { creep.memory.extracting = false; } if (!creep.memory.extracting && 0 == _.sum(creep.carry)) { creep.memory.extracting = true; if (creep.ticksToLive < 200) { creep.suicide(); } } if (creep.memory.extracting) { var target; if (creep.memory.depositId) { target = Game.getObjectById(creep.memory.depositId); } else { var targets = creep.room.find(FIND_MINERALS); target = targets[0]; creep.memory.depositId = target.id; creep.memory.mineralType = target.mineralType; } if (creep.harvest(target) == ERR_NOT_IN_RANGE) { creep.moveTo(target); } } else { if (creep.room.terminal) { if (creep.transfer(creep.room.terminal, creep.memory.mineralType) == ERR_NOT_IN_RANGE) { creep.moveTo(creep.room.terminal); } } else if (creep.room.storage) { if (creep.transfer(creep.room.storage, creep.memory.mineralType) == ERR_NOT_IN_RANGE) { creep.moveTo(creep.room.storage); } } } } }; module.exports = roleExtractor; -------------------- Sell to market order -------------------- // Terminal trade execution if (spawn.room.terminal && (Game.time % 10 == 0)) { if (spawn.room.terminal.store[RESOURCE_ENERGY] >= 2000 && spawn.room.terminal.store[RESOURCE_HYDROGEN] >= 2000) { var orders = Game.market.getAllOrders(order => order.resourceType == RESOURCE_HYDROGEN && order.type == ORDER_BUY && Game.market.calcTransactionCost(200, spawn.room.name, order.roomName) < 400); console.log('Hydrogen buy orders found: ' + orders.length); orders.sort(function(a,b){return b.price - a.price;}); console.log('Best price: ' + orders[0].price); if (orders[0].price > 0.7) { var result = Game.market.deal(orders[0].id, 200, spawn.room.name); if (result == 0) { console.log('Order completed successfully'); } } } } -------------------- View order on console -------------------- JSON.stringify(Game.market.getAllOrders(order => order.resourceType == RESOURCE_GHODIUM && order.type == ORDER_SELL && Game.market.calcTransactionCost(200, 'W12N64', order.roomName) < 500));