color_set.hpp

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#pragma once
 
#include <bitset>
#include <cstddef>
#include <functional>
#include <string>
 
#include "porytiles2/domain/models/color_index.hpp"
 
namespace porytiles2 {
 
class ColorSet {
  public:
    ColorSet() = default;
 
    [[nodiscard]] bool test(ColorIndex index) const;
 
    void set(ColorIndex index, bool value = true);
 
    void reset(ColorIndex index);
 
    [[nodiscard]] const std::bitset<num_colors> &colors() const
    {
        return colors_;
    }
 
    [[nodiscard]] bool operator==(const ColorSet &other) const = default;
 
  private:
    // TODO: define this in terms of num_pals * colors_per_pal (i.e. 16 * 15)
    std::bitset<num_colors> colors_;
};
 
} // namespace porytiles2
 
template <>
struct std::hash<porytiles2::ColorSet> {
    [[nodiscard]] std::size_t operator()(const porytiles2::ColorSet &color_set) const noexcept
    {
        return std::hash<std::string>{}(color_set.colors().to_string());
    }
};