How to Create a 2D Snake Game in Flutter

Jan 17 2023 · Dart 2.17, Flutter 3.0, Android Studio or VS Code

Part 1: How to Create a 2D Snake Game in Flutter

07. Adding Movement & Speed

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Previous episode: 06. Draw the Snake Next episode: 08. Changing the Direction

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In this episode, we are going to use a Timer to rebuild the UI periodically. When the UI is rebuilt, you will see the Snake rendered on the screen on its new position.

void changeSpeed() {
    if (timer != null && timer.isActive) timer.cancel();

    timer = Timer.periodic(Duration(milliseconds: 200 ~/ speed), (timer) {
      setState(() {});
    });
}

void restart() {
    // Add this
    changeSpeed();
}

@override
void initState() {
    super.initState();

    // Add this
    restart();
}