Screeps Link transferEnergy(): Coordinate Capacity and Verify Events
Plan multiple same-room Link sends with shared target-capacity reservations, submit each source once, and verify exact source and target IDs in the next tick's transfer events.
ARTICLE LIBRARY
Practical Screeps articles for the problem you need to solve
Browse 81 published guides by system, difficulty, content type, or topic. Start with What Is Screeps? A Programming Strategy Game or follow the beginner sequence through How to Combine Your First Screeps Room Loop.
Screeps Mineral Harvesting: Exact Miner and Mineral Event Identity
Validate the same-tile Extractor and Miner, record only accepted harvest calls, match the exact EVENT_HARVEST on the next tick, and separate event identity from Store overflow and depletion.
Screeps Prespawn Replacement: Start the Next Creep Before the Current One Dies
Calculate a replacement deadline from ticksToLive, current Spawn work, body spawn time, travel and safety margin, prevent duplicate role replacements, preserve spawnCreep results, and observe the accepted name later.
Screeps reserveController() vs claimController(): Verify the Exact Mission
Bind the Claimer and Controller IDs, record only accepted reserve or claim calls, verify reserve events without inventing a targetId, and verify claims through exact next-tick ownership.
Screeps Source Selection: Complete Paths and Stable Assignments
Keep a valid Source identity, search only when reassignment is needed, reject incomplete PathFinder results, rank complete paths deterministically, and verify the selected harvest event.
Screeps Storage Energy: Reserve Budgets and Verify Transfers
Coordinate one shared Storage withdrawal budget and target capacity map, record only accepted withdraw or transfer calls, and verify the exact source-target event on the next tick.
Screeps Factory.produce(): Verify One Production Batch
Separate permanent Factory level from the active Power effect, snapshot every recipe component, submit one batch, and verify exact output and component deltas under an exclusive Store window.
Screeps runReaction(): Verify One Owned Lab Reaction
Bind one request to three exact Lab IDs, snapshot both reagent types and Stores, submit once, and verify the product and two reagent deltas under an exclusive action window.
Screeps Tower.attack(): Verify One Multi-Tower Volley
Bind one target and each Tower ID, estimate range- and Power-adjusted output for allocation, submit one attack intent per Tower, then verify exact prior-tick ranged-attack events instead of inferring a volley from net hits.
Screeps Tower.repair(): Verify Exact Repair Events
Preserve a defense Energy reserve, select an ordinary damaged structure, estimate range-adjusted repair to limit over-repair, submit one intent per Tower, then verify exact prior-tick repair events and Energy spent.
Screeps CostMatrix 255: Why It Means Unwalkable
In Screeps PathFinder, a CostMatrix cost of 255 is unwalkable. See what 0, 1–254, and 255 mean, plus practical road, obstacle, and roomCallback rules.
Screeps Dynamic Creep Body: Minimum, Target, and Emergency Plans
Separate minimum, target, and emergency body policies; scale one role template within current Energy and the 50-part limit; then validate spawning separately.
Publication standard
English articles are published only after source review, official API checks where applicable, JavaScript syntax review where code is present, duplicate-intent and link checks, and editorial review. Publication does not imply Console or multi-tick live-room verification; those evidence states remain separate in each guide. Review the verification method.