2 * puzzles.h: header file for my puzzle collection
5 #ifndef PUZZLES_PUZZLES_H
6 #define PUZZLES_PUZZLES_H
15 #define lenof(array) ( sizeof(array) / sizeof(*(array)) )
31 #define IGNOREARG(x) ( (x) = (x) )
33 typedef struct frontend frontend;
34 typedef struct config_item config_item;
35 typedef struct midend_data midend_data;
36 typedef struct random_state random_state;
37 typedef struct game_params game_params;
38 typedef struct game_state game_state;
39 typedef struct game_drawstate game_drawstate;
41 #define ALIGN_VNORMAL 0x000
42 #define ALIGN_VCENTRE 0x100
44 #define ALIGN_HLEFT 0x000
45 #define ALIGN_HCENTRE 0x001
46 #define ALIGN_HRIGHT 0x002
49 #define FONT_VARIABLE 1
52 * Structure used to pass configuration data between frontend and
55 enum { C_STRING, C_CHOICES, C_BOOLEAN, C_END };
58 * `name' is never dynamically allocated.
62 * `type' contains one of the above values.
66 * For C_STRING, `sval' is always dynamically allocated and
67 * non-NULL. For C_BOOLEAN and C_END, `sval' is always NULL.
68 * For C_CHOICES, `sval' is non-NULL, _not_ dynamically
69 * allocated, and contains a set of option strings separated by
70 * a delimiter. The delimeter is also the first character in
71 * the string, so for example ":Foo:Bar:Baz" gives three
72 * options `Foo', `Bar' and `Baz'.
76 * For C_BOOLEAN, this is TRUE or FALSE. For C_CHOICES, it
77 * indicates the chosen index from the `sval' list. In the
78 * above example, 0==Foo, 1==Bar and 2==Baz.
86 void fatal(char *fmt, ...);
87 void frontend_default_colour(frontend *fe, float *output);
88 void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
89 int align, int colour, char *text);
90 void draw_rect(frontend *fe, int x, int y, int w, int h, int colour);
91 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour);
92 void draw_polygon(frontend *fe, int *coords, int npoints,
93 int fill, int colour);
94 void clip(frontend *fe, int x, int y, int w, int h);
95 void unclip(frontend *fe);
96 void start_draw(frontend *fe);
97 void draw_update(frontend *fe, int x, int y, int w, int h);
98 void end_draw(frontend *fe);
99 void deactivate_timer(frontend *fe);
100 void activate_timer(frontend *fe);
101 void status_bar(frontend *fe, char *text);
106 midend_data *midend_new(frontend *fe, void *randseed, int randseedsize);
107 void midend_free(midend_data *me);
108 void midend_set_params(midend_data *me, game_params *params);
109 void midend_size(midend_data *me, int *x, int *y);
110 void midend_new_game(midend_data *me);
111 void midend_restart_game(midend_data *me);
112 int midend_process_key(midend_data *me, int x, int y, int button);
113 void midend_redraw(midend_data *me);
114 float *midend_colours(midend_data *me, int *ncolours);
115 void midend_timer(midend_data *me, float tplus);
116 int midend_num_presets(midend_data *me);
117 void midend_fetch_preset(midend_data *me, int n,
118 char **name, game_params **params);
119 int midend_wants_statusbar(midend_data *me);
120 enum { CFG_SETTINGS, CFG_SEED };
121 config_item *midend_get_config(midend_data *me, int which, char **wintitle);
122 char *midend_set_config(midend_data *me, int which, config_item *cfg);
127 void *smalloc(int size);
128 void *srealloc(void *p, int size);
130 char *dupstr(char *s);
132 ( (type *) smalloc (sizeof (type)) )
133 #define snewn(number, type) \
134 ( (type *) smalloc ((number) * sizeof (type)) )
135 #define sresize(array, number, type) \
136 ( (type *) srealloc ((array), (number) * sizeof (type)) )
141 void free_cfg(config_item *cfg);
146 random_state *random_init(char *seed, int len);
147 unsigned long random_bits(random_state *state, int bits);
148 unsigned long random_upto(random_state *state, unsigned long limit);
149 void random_free(random_state *state);
152 * Game-specific routines
154 extern const char *const game_name;
155 const int game_can_configure;
156 game_params *default_params(void);
157 int game_fetch_preset(int i, char **name, game_params **params);
158 void free_params(game_params *params);
159 game_params *dup_params(game_params *params);
160 config_item *game_configure(game_params *params);
161 game_params *custom_params(config_item *cfg);
162 char *validate_params(game_params *params);
163 char *new_game_seed(game_params *params, random_state *rs);
164 char *validate_seed(game_params *params, char *seed);
165 game_state *new_game(game_params *params, char *seed);
166 game_state *dup_game(game_state *state);
167 void free_game(game_state *state);
168 game_state *make_move(game_state *from, int x, int y, int button);
169 void game_size(game_params *params, int *x, int *y);
170 float *game_colours(frontend *fe, game_state *state, int *ncolours);
171 game_drawstate *game_new_drawstate(game_state *state);
172 void game_free_drawstate(game_drawstate *ds);
173 void game_redraw(frontend *fe, game_drawstate *ds, game_state *oldstate,
174 game_state *newstate, float anim_time, float flash_time);
175 float game_anim_length(game_state *oldstate, game_state *newstate);
176 float game_flash_length(game_state *oldstate, game_state *newstate);
177 int game_wants_statusbar(void);
179 #endif /* PUZZLES_PUZZLES_H */