How can I implement AI in my C++ game?

How can I implement AI in my C++ game?

You can implement AI in your C++ game by using techniques like finite state machines, behavior trees, or pathfinding algorithms.

What are finite state machines and how do they work?

Finite state machines (FSMs) are models of computation that can be in one of a finite number of states. They transition between states based on inputs, making them useful for controlling game character behaviors.

Can you give me an example of a simple FSM in C++?

Sure! Here's a basic example:

class StateMachine {
public:
    enum State { IDLE, MOVING, ATTACKING };
    State currentState;

    void update() {
        switch (currentState) {
            case IDLE:
                // Handle idle behavior
                break;
            case MOVING:
                // Handle moving behavior
                break;
            case ATTACKING:
                // Handle attacking behavior
                break;
        }
    }
};

This code defines a simple state machine with three states.

What about behavior trees? How do they differ from FSMs?

Behavior trees are more flexible than FSMs. They allow for complex behaviors to be constructed from simpler tasks, making it easier to manage AI logic. Unlike FSMs, which can become unwieldy with many states, behavior trees provide a hierarchical structure that can be more intuitive.