Intermediate
Throw the card
The card has two resting places, 0 and 180. Today decide always sends it back to 0.
Write decide(x, v): go to the far end when the position plus 0.15 s of release speed is past the middle (90), else back to 0.
What Check tests
- A quick 40 px flick carries the card to the far end
- Dragged slowly past the middle and held, it opens
- Dragged slowly 60 px and held, it falls back
- A tap changes nothing
Stuck? One hint at a time
The solution unlocks after your first Check. Try first: that is where the learning happens.
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