#include <iostream>
#include "main.hpp"

Base *DerivedA::clone() {
    std::cout << "clone da" << std::endl;
    return new DerivedA;
}

Base *DerivedB::clone() {
    std::cout << "clone db" << std::endl;
    return new DerivedB;
}

void Base::hello() {
    std::cout << 0 << std::endl;
}

void DerivedA::hello() {
    std::cout << 1 << std::endl;
}

void DerivedB::hello() {
    std::cout << 2 << std::endl;
}

GameState::GameState() {
    std::cout << "c" << std::endl;
    thing = new DerivedA;
}

GameState::GameState(const GameState &other) {
    std::cout << "cc" << std::endl;
    thing = other.thing->clone();
}

GameState &GameState::operator=(const GameState &other) {
    std::cout << "=" << std::endl;
    thing = other.thing;
    return *this;
}

GameState::~GameState() {
    std::cout << "d gamestate" << std::endl;
    delete thing;
    thing = nullptr;
}

void GameState::switchThing() {
    std::cout << "switch" << std::endl;
    delete thing;
    thing = new DerivedB;
}

int main(int argc, char *argv[]) {
    GameState state;
    state.thing->hello();
    std::cout << std::endl;

    GameState copy = state;
    state.thing->hello();
    copy.thing->hello();
    std::cout << std::endl;

    copy.switchThing();
    state.thing->hello();
    copy.thing->hello();
    std::cout << std::endl;

    state = copy;
    state.thing->hello();
    copy.thing->hello();

    return 0;
}