Frogger in Python - KidsLearn

Score

Lives

Crossings

Best

⌨️ Controls

↑ ↓ ← → or W A S D hop one square
Tapping the board hops towards where you tapped
P or SPACE pause
R start a new game
🎮 Xbox controller? Just plug it in or pair it — the stick and D-pad are the arrow keys, A is SPACE, Menu pauses and View starts again

🎯 How to play

Hop from the bottom bank to the top without being run over.
The striped rows are safe — the one in the middle is a place to stop and think.
You get three frogs. Every crossing makes the traffic faster.
Odd rows drive right, even rows drive left. Watch both ways!

🏆 Scoring

10 points for every row you reach for the first time.
100 points for a whole crossing.
Hopping back and forth pays nothing — a row only counts once.
Tip: wait on the safe island until a gap opens all the way up.

🧑‍💻 This whole game is Python

There is almost no JavaScript on this page. The browser downloaded Pyodide — a complete Python interpreter compiled to WebAssembly — and then ran the .py files in funtime/pylib/. Python does the rules, the maths and the drawing.

File	What it does	Good functions to try re-writing
pylib/frogger_rules.py	The rules: the lanes, the traffic, the hops	`lane_speed`, `wrap_car`, `move_frog`, `is_squashed`
pylib/frogger_draw.py	Painting the road — Python calling the canvas	`draw_car`, `draw_frog`, `render_game`
pylib/frogger_web.py	The glue: the keyboard, the taps, the loop	`do_action`, `on_board_click`, `frame`

🔍 Compare the two versions. Open lib/frogger-rules.js and pylib/frogger_rules.py side by side — same ideas, two languages.

🛠️ Build it yourself: Build Frogger in Python walks you through the functions one at a time.

⚠️ If the game never starts: the page has to read its .py files, which a browser will not do for a page opened straight off your disk. Use the live site, or run python3 -m http.server in the project folder.