libakgl/include/sdl3game/game.h

#ifndef _GAME_H_
#define _GAME_H_

#include <SDL3_mixer/SDL_mixer.h>
#include "tilemap.h"

#define GAME_AUDIO_TRACK_BGM       1
#define GAME_AUDIO_MAX_TRACKS      64

#define TIME_ONESEC_NS              1000000000
#define TIME_ONESEC_MS              1000000

/* ==================== GAME STATE VARIABLES =================== */

typedef struct {
  float w;
  float h;
  SDL_Texture *texture;
} GAME_frame;

typedef struct {
  int flags;
} GameState;

typedef struct {
    char name[256];
    char version[32];
    char uri[256];
    int screenwidth;
    int screenheight;
    GameState state;
    int fps;
    SDL_Time gameStartTime;
    SDL_Time lastIterTime;
    SDL_Time lastFPSTime;
    int framesSinceUpdate;
    MIX_Mixer *mixer;
    MIX_Track *tracks[GAME_AUDIO_MAX_TRACKS];
} Game;


extern SDL_Window *window;
extern SDL_Renderer *renderer;
extern tilemap gamemap;
extern MIX_Audio *bgm;
extern SDL_FRect camera;
extern Game game;

#define BITMASK_HAS(x, y) (x & y) == y
#define BITMASK_ADD(x, y) x |= y
#define BITMASK_DEL(x, y) x &= ~(y)
#define BITMASK_CLEAR(x)  x = 0;

akerr_ErrorContext AKERR_NOIGNORE *GAME_init();
void GAME_updateFPS();

#endif //_GAME_H_