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#ifndef RENDERER_H_6A58EC30
#define RENDERER_H_6A58EC30
#include <SDL.h>
#include <SDL_image.h>
#include <stdexcept>
#include <memory>
#include <map>
#include <string>
#include <vector>
class Game;
class Map;
class Sprite;
class sdl_error : public std::logic_error {
public:
sdl_error() : std::logic_error(SDL_GetError())
{
}
};
class img_error : public std::logic_error {
public:
img_error() : std::logic_error(IMG_GetError())
{
}
};
class sdl_wrapper {
public:
sdl_wrapper()
{
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0)
{
sdl_error ex;
SDL_Quit();
throw ex;
}
}
~sdl_wrapper()
{
SDL_Quit();
}
};
class img_wrapper {
public:
img_wrapper()
{
if (IMG_Init(IMG_INIT_PNG) != IMG_INIT_PNG)
{
img_error ex;
IMG_Quit();
throw ex;
}
}
~img_wrapper()
{
IMG_Quit();
}
};
class window_deleter {
public:
void operator()(SDL_Window* ptr)
{
SDL_DestroyWindow(ptr);
}
};
using window_ptr = std::unique_ptr<SDL_Window, window_deleter>;
class renderer_deleter {
public:
void operator()(SDL_Renderer* ptr)
{
SDL_DestroyRenderer(ptr);
}
};
using renderer_ptr = std::unique_ptr<SDL_Renderer, renderer_deleter>;
class surface_deleter {
public:
void operator()(SDL_Surface* ptr)
{
SDL_FreeSurface(ptr);
}
};
using surface_ptr = std::unique_ptr<SDL_Surface, surface_deleter>;
class texture_deleter {
public:
void operator()(SDL_Texture* ptr)
{
SDL_DestroyTexture(ptr);
}
};
using texture_ptr = std::unique_ptr<SDL_Texture, texture_deleter>;
class Renderer {
public:
Renderer();
void render(Game& game);
int loadImageFromFile(std::string filename);
private:
// Important wrappers
sdl_wrapper sdl_;
img_wrapper img_;
window_ptr win_;
renderer_ptr ren_;
// Textures loaded from files
std::vector<texture_ptr> textures_;
std::map<std::string, int> filenameToTexId_;
// Sprite rendering
void renderSprite(const Sprite& sprite);
// Map rendering
texture_ptr renderMapLayer(const Map& map, bool above);
std::string cachedMapName_;
std::string cachedTilesetName_;
texture_ptr tilesetTex_;
texture_ptr renLowerLayer_;
texture_ptr renUpperLayer_;
texture_ptr mapSwapTex_;
// Text rendering
struct MessageCache {
texture_ptr renderedTex;
std::vector<int> charIndexToWidth;
std::string line;
std::string overflow;
};
void renderMessageLine(MessageCache& line, const std::string& text, Game& game);
MessageCache messageLines_[2];
int speakerHeaderTex_ = -1;
MessageCache speakerHeaderLine_;
int advMsgArrowTex_ = -1;
int choiceArrowTex_ = -1;
// Debug console
texture_ptr debugConsoleTex_;
std::string cachedDebugText_;
SDL_Rect debugDestRect_;
};
#endif /* end of include guard: RENDERER_H_6A58EC30 */
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