What are some examples of finite state machines in C++?

Can you give me some examples of finite state machines implemented in C++?

Sure! A finite state machine (FSM) can be implemented using classes in C++. For example, you can create a simple traffic light system.

How would you structure the traffic light FSM?

You can have states like 'Red', 'Green', and 'Yellow'. Each state can transition to the next based on a timer.

Can you show me a code snippet for that?

Absolutely! Here's a basic example:

class TrafficLight {
public:
    enum State { RED, GREEN, YELLOW };
    State currentState;

    TrafficLight() : currentState(RED) {}

    void change() {
        switch (currentState) {
            case RED: currentState = GREEN; break;
            case GREEN: currentState = YELLOW; break;
            case YELLOW: currentState = RED; break;
        }
    }
};

This code defines a simple FSM for a traffic light.

What about more complex examples?

For more complex examples, you could implement an FSM for a game character's behavior, like idle, walking, and running states.