Set It Up

Before anything can bounce, it needs to remember which way it's going.

Write new_game() so it returns a state with:

Then make update move by state["dx"] instead of a hard-coded 1.

Nothing bounces yet — the dot just walks right. But the direction now lives in the state, which is the thing that makes bouncing possible at all.

Expected output

6/1 7/1 8/1 9/1

Need a hint?

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python

def new_game():

# Return a state with "x" at 5 and "dx" at 1.

return {}

def update(state, keys):

state["x"] = state["x"] + 1

return state

def draw(state):

grid = blank_grid()

grid[6][state["x"]] = "red"

return grid