What are the Factory, Brain code, Arena and League tabs for?

Factory

The Factory is your workshop for machines. Drag stock parts (or click their cards) onto the Build platform: a chassis, an engine, a CPU, and sensors and tools for the Sensor & tool deck. Each part gets a numbered channel, in mount order: that's how your program connects to it. Totals show your machine's mass, speed and more as parts go on and come off.

Type a name and click Save design to keep the machine as a design: a blueprint you can build as many bots from as you like. Code the brain → takes you to Brain code with it.

Designs and Bots

When you're logged in, two more tabs appear. Designs lists the machines you've saved: build bots from them, or put one back on the platform to change it. Bots lists the bots you've built from your designs.

Brain code

Brain code has three views:

• Code: the editor. Pick a language from the League list, start from a blank program or a house bot with Start from…, and Save your file. Each program belongs to a bot and runs on that bot's machine. The Reference under the editor lists everything each part can do.
• Test arena: a field where you set up a test. Drag your bots and teams onto it, add features such as blocks, sand, mud or mines, pick the Game, and click Run test. Test matches are always free.
• Tournaments: the tournaments coming up, and a way to enter one of your teams.

Arena

Every match you watch plays here: your test runs, and matches from the League. Press play, step tick by tick, change the speed, or drag the timeline. Click an item under Events for an instant replay. Bot logs show what each bot's program logs and the damage it takes, which is the best way to see what your code is thinking.

League

The League is where you meet other players' bots. It opens with a tile for each thing to do:

• League schedule: upcoming tournaments, their entries and results.
• Recent matches: watch the house teams play, 4 bots a side, Capture the flag.
• Join the league (or My teams once you're logged in): make an account, name a team and add your bots.
• Ladder (logged in): enter your Brain code bot on the rated ladder and see the standings and rated series.
• Live now & challenges (logged in): matches playing now, and your friendly challenges.

Tutorial

The Tutorial button walks you through all of this with your first robot, in about 20 minutes.