palette.hpp

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#pragma once
 
#include <cstddef>
#include <string>
#include <vector>
 
#include "porytiles2/domain/models/supports_transparency.hpp"
#include "porytiles2/xcut/panic/panic.hpp"
 
namespace porytiles2 {
 
namespace pal {
 
inline constexpr std::size_t max_size = 16;
 
inline constexpr std::size_t num_pals = 16;
 
} // namespace pal
 
template <SupportsTransparency ColorType>
class Palette {
  public:
    Palette() = default;
 
    explicit Palette(ColorType color)
    {
        for (std::size_t i = 0; i < pal::max_size; i++) {
            add(color);
        }
    }
 
    void add(ColorType color)
    {
        colors_.push_back(color);
    }
 
    void set(ColorType color, std::size_t index)
    {
        if (index >= size()) {
            panic("index " + std::to_string(index) + " >= size " + std::to_string(size()));
        }
        colors_.at(index) = color;
    }
 
    [[nodiscard]] std::size_t size() const
    {
        return colors_.size();
    }
 
    [[nodiscard]] const std::vector<ColorType> &colors() const
    {
        return colors_;
    }
 
  private:
    std::vector<ColorType> colors_;
};
 
} // namespace porytiles2