assetService.h

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#pragma once
 
#include <engine/core/iEngineService.h>
#include <engine/core/rendering/font.h>
#include <engine/core/rendering/texture.h>
#include <engine/public/util/color.h>
 
#include <map>
#include <optional>
#include <vector>
 
class AssetService : public IEngineService {
 public:
  AssetService();
  AssetService(const AssetService&) = delete;
  AssetService& operator=(const AssetService&) = delete;
 
  AssetService(AssetService&&) = default;  // allow move
  AssetService& operator=(AssetService&&) = default;
 
  [[nodiscard]] std::optional<std::reference_wrapper<
      const std::vector<std::reference_wrapper<Texture>>>>
  try_get_spritesheet(const std::string& key) const;
 
  std::reference_wrapper<const std::vector<std::reference_wrapper<Texture>>>
  create_spritesheet_for(const std::string& source, const std::string& name,
                         size_t from, size_t to);
 
  [[nodiscard]] std::optional<std::reference_wrapper<Texture>> try_get_texture(
      const std::string& sprite) const;
 
  std::reference_wrapper<Texture> register_texture(
      const std::string& resource_name, const std::string& texture_name,
      size_t index);
 
  std::vector<std::reference_wrapper<Texture>> load_from_resource(
      const std::string& file, const std::string& name, int rows, int cols);
 
  std::reference_wrapper<Texture> get_default_texture();
 
  [[nodiscard]] std::optional<std::reference_wrapper<Font>> try_get_font(
      const std::string& font_name, int font_size) const;
 
  [[nodiscard]] std::reference_wrapper<Font> register_font(
      const std::string& font_name, const std::string& font_path,
      int font_size);
 
 private:
  static constexpr const char* const resource_path = "resources/sprites/";
 
  std::vector<std::unique_ptr<Texture>> textures_;
  std::map<std::string, std::vector<std::reference_wrapper<Texture>>>
      named_assets_;
  std::map<std::string, std::unique_ptr<Font>> font_cache_;
};