#pragma once

class Action
{
public:
    virtual void run() = 0;
    virtual void undo() = 0;
};

class ActionManager
{
public:
    static ActionManager I;
    std::stack<std::unique_ptr<Action>> m_actions;
    static void add(Action* action)
    {
        I.m_actions.emplace(action);
    }
    static void undo()
    {
        I.m_actions.top()->undo();
        I.m_actions.pop();
    }
};