(svn r2448) General cleanup of rail related code, more to follow.
* Add: rail.[ch] for rail-related enums and wrapper functions.
* Codechange: Removed dozens of magic numbers with below enums.
* Codechange: Rewrote CheckTrackCombination().
* Add: TILE_SIZE, TILE_PIXELS and TILE_HEIGHT constants.
* Add: enums RailTileType, RailTileSubtype, SignalType to mask against the map arrays.
* Add: enums Track, TrackBits, Trackdir, TrackdirBits for railway track data. (Note that the old RAIL_BIT constants are replaced by TRACK_BIT ones).
* Add: enums Direction and DiagDirection
* Codechange: Moved a bunch of track(dir) related lookup arrays from npf.[ch] to rail.[ch].
* Codechange: move RailType enum from tile.h to rail.h.
* Add: Wrapper functions for masking signal status in the map arrays: SignalAlongTrackdir, SignalAgainstTrackdir and SignalOnTrack.
* Add: Wrapper functions to access rail tiles, using above enums
* Add: Wrapper functions to modify tracks, trackdirs, directions, etc.
* Add: Wrapper functions for all lookup arrays in rail.[ch] (Arrays are still used in parts of the code)
* Codechange: Renamed some variables and arguments to better represent what they contain (railbit -> track, bits -> trackdirbits, etc.).
* Codechange: Don't use FindLandscapeHeight() in CmdRemoveSingleRail(), since it returns way too much info. Use GetTileSlope() instead.
* Codechange: [NPF] Removed some unused globals and code from npf.c.
#ifndef HAL_H
#define HAL_H
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
} HalCommonDriver;
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
void (*make_dirty)(int left, int top, int width, int height);
int (*main_loop)(void);
bool (*change_resolution)(int w, int h);
void (*toggle_fullscreen)(bool fullscreen);
} HalVideoDriver;
enum {
ML_QUIT = 0,
ML_SWITCHDRIVER = 1,
};
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
} HalSoundDriver;
typedef struct {
const char *(*start)(const char * const *parm);
void (*stop)(void);
void (*play_song)(const char *filename);
void (*stop_song)(void);
bool (*is_song_playing)(void);
void (*set_volume)(byte vol);
} HalMusicDriver;
typedef struct {
const char *name;
const char *longname;
const void *drv;
uint32 flags;
} DriverDesc;
enum {
HALERR_OK = 0,
HALERR_ERROR = 1,
};
extern const HalMusicDriver _null_music_driver;
extern const HalVideoDriver _null_video_driver;
extern const HalSoundDriver _null_sound_driver;
VARDEF HalMusicDriver *_music_driver;
VARDEF HalSoundDriver *_sound_driver;
VARDEF HalVideoDriver *_video_driver;
extern const DriverDesc _video_driver_descs[];
extern const DriverDesc _sound_driver_descs[];
extern const DriverDesc _music_driver_descs[];
#if defined(WITH_SDL)
extern const HalSoundDriver _sdl_sound_driver;
extern const HalVideoDriver _sdl_video_driver;
#endif
#if defined(UNIX)
extern const HalMusicDriver _extmidi_music_driver;
#endif
#if defined(__BEOS__)
extern const HalMusicDriver _bemidi_music_driver;
#endif
#if defined(__OS2__)
extern const HalMusicDriver _os2_music_driver;
#endif
extern const HalVideoDriver _dedicated_video_driver;
enum DriverType {
VIDEO_DRIVER = 0,
SOUND_DRIVER = 1,
MUSIC_DRIVER = 2,
};
extern void GameLoop(void);
extern bool _dbg_screen_rect;
void LoadDriver(int driver, const char *name);
const char *GetDriverParam(const char * const *parm, const char *name);
bool GetDriverParamBool(const char * const *parm, const char *name);
int GetDriverParamInt(const char * const *parm, const char *name, int def);
// Deals with finding savegames
typedef struct {
uint16 id;
byte type;
uint64 mtime;
char title[64];
char name[256-12-64];
} FiosItem;
enum {
FIOS_TYPE_DRIVE = 0,
FIOS_TYPE_PARENT = 1,
FIOS_TYPE_DIR = 2,
FIOS_TYPE_FILE = 3,
FIOS_TYPE_OLDFILE = 4,
FIOS_TYPE_SCENARIO = 5,
FIOS_TYPE_OLD_SCENARIO = 6,
};
// Variables to display file lists
FiosItem *_fios_list;
int _fios_num;
int _saveload_mode;
// get the name of an oldstyle savegame
void GetOldSaveGameName(char *title, const char *file);
// get the name of an oldstyle scenario
void GetOldScenarioGameName(char *title, const char *file);
// Get a list of savegames
FiosItem *FiosGetSavegameList(int *num, int mode);
// Get a list of scenarios
FiosItem *FiosGetScenarioList(int *num, int mode);
// Free the list of savegames
void FiosFreeSavegameList(void);
// Browse to. Returns a filename w/path if we reached a file.
char *FiosBrowseTo(const FiosItem *item);
// Return path, free space and stringID
StringID FiosGetDescText(const char **path, uint32 *tot);
// Delete a name
void FiosDelete(const char *name);
// Make a filename from a name
void FiosMakeSavegameName(char *buf, const char *name);
int CDECL compare_FiosItems(const void *a, const void *b);
void CreateConsole(void);
#endif /* HAL_H */