It Falls

Make a dot accelerate downward.

Start with y at 0 and vy at 0. Each frame:

The test prints y and vy together. You should see 1/1, 3/2, 6/3 — the speed climbing by one, and the position jumping by more each time.

Only run it for a few frames. Nothing stops this dot yet, and past row 13 it will fall right out of the picture.

Expected output

1/1 3/2 6/3 10/4

Need a hint?

3 available · costs 5 XP each

python

def new_game():

return {"y": 0, "vy": 0}

def update(state, keys):

# Gravity first: add 1 to vy. Then move: add vy to y.

return state

def draw(state):

grid = blank_grid()

grid[state["y"]][20] = "white"

return grid