opts.hpp

#pragma once
 
#include <any>
#include <stdexcept>
#include <unordered_map>
 
namespace cat3d {
 
enum opt {
    WIDTH,
    HEIGHT,
    TITLE,
    CLEAR_COLOR,
    ANTIALIASING
 
};
 
class opts {
public:
    typedef std::unordered_map<opt, std::any> opt_map;
 
    opts(opt_map opt);
 
    template <typename T>
    T get(opt key) const {
        return std::any_cast<T>(m_config.at(key));
    }
 
    template <typename T>
    T get(opt key, T fallback) const {
        try {
            return std::any_cast<T>(m_config.at(key));
        } catch (const std::out_of_range& e) {
            return fallback;
        }
    }
 
private:
    opt_map m_config;
};
 
}