Velocity Arena · Gotham Tech
Your bot starts in the corner. Send it out to the midline at an angle, turn to face the ball head-on, drive up to the ball, and kick. Two drives — you work out the time for each with your own equation.
You need your Distance Lab equation, the Launch Sequence Starter (in MakeCode), a tape measure, and the ball your teacher places.
Turn toward the midline, then drive out to it. Measure how far the bot must travel, and use your equation to turn that distance into a drive time.
At the midline, turn to face the ball straight on (line up bot → ball → goal). Measure the last stretch, and find its time the same way. Aim to stop a few cm SHORT of the ball — not on top of it. The program rolls the last bit forward on its own and kicks; if Leg 2 drives into the ball, the ball moves before the kick.
Same equation both times — start-up is negative, so subtracting it adds (distance + 7 for the worked bot). Each drive has its own start-up, so do the math twice.
Four moves: turn, drive ms1, turn, drive ms2. Open the Launch Test, set your four stats, and change just your two angles and two ms values — the four highlighted numbers. Press A to run it; there's no field setup, so you can change a number and re-test in seconds.
Missed the midline — short or long → fix ms1 (re-check the distance ÷ speed).
Reached the midline but off to the side → fix the Leg 1 angle.
Stopped short of the ball, or drove past it → fix ms2.
Not lined up head-on → fix the Leg 2 turn.
Change one thing at a time — otherwise you can't tell which fix worked.
Once your launch reliably ends behind the ball, the match code's locked part drives the last bit and kicks — strength is your Power². Compete: most goals out of 5 launches wins.
Everyone launches from the same corner at the same ball — so the winner is whose two-leg math and turns were sharpest.