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1 | /* |
2 | * puzzles.h: header file for my puzzle collection |
3 | */ |
4 | |
5 | #ifndef PUZZLES_PUZZLES_H |
6 | #define PUZZLES_PUZZLES_H |
7 | |
ab53eb64 |
8 | #include <stdlib.h> /* for size_t */ |
9 | |
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10 | #ifndef TRUE |
11 | #define TRUE 1 |
12 | #endif |
13 | #ifndef FALSE |
14 | #define FALSE 0 |
15 | #endif |
16 | |
b2a646f1 |
17 | #define PI 3.141592653589793238462643383279502884197169399 |
18 | |
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19 | #define lenof(array) ( sizeof(array) / sizeof(*(array)) ) |
20 | |
1d8e8ad8 |
21 | #define STR_INT(x) #x |
22 | #define STR(x) STR_INT(x) |
23 | |
ab53eb64 |
24 | /* NB not perfect because they evaluate arguments multiple times. */ |
41184c24 |
25 | #ifndef max |
ab53eb64 |
26 | #define max(x,y) ( (x)>(y) ? (x) : (y) ) |
41184c24 |
27 | #endif /* max */ |
28 | #ifndef min |
ab53eb64 |
29 | #define min(x,y) ( (x)<(y) ? (x) : (y) ) |
41184c24 |
30 | #endif /* min */ |
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31 | |
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32 | enum { |
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33 | LEFT_BUTTON = 0x0200, |
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34 | MIDDLE_BUTTON, |
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35 | RIGHT_BUTTON, |
74a4e547 |
36 | LEFT_DRAG, |
37 | MIDDLE_DRAG, |
38 | RIGHT_DRAG, |
39 | LEFT_RELEASE, |
40 | MIDDLE_RELEASE, |
41 | RIGHT_RELEASE, |
1482ee76 |
42 | CURSOR_UP, |
43 | CURSOR_DOWN, |
44 | CURSOR_LEFT, |
c71454c0 |
45 | CURSOR_RIGHT, |
4cd25760 |
46 | CURSOR_SELECT, |
3c833d45 |
47 | |
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48 | /* made smaller because of 'limited range of datatype' errors. */ |
49 | MOD_CTRL = 0x1000, |
50 | MOD_SHFT = 0x2000, |
51 | MOD_NUM_KEYPAD = 0x4000, |
52 | MOD_MASK = 0x7000 /* mask for all modifiers */ |
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53 | }; |
54 | |
6776a950 |
55 | #define IS_MOUSE_DOWN(m) ( (unsigned)((m) - LEFT_BUTTON) <= \ |
56 | (unsigned)(RIGHT_BUTTON - LEFT_BUTTON)) |
57 | #define IS_MOUSE_DRAG(m) ( (unsigned)((m) - LEFT_DRAG) <= \ |
58 | (unsigned)(RIGHT_DRAG - LEFT_DRAG)) |
59 | #define IS_MOUSE_RELEASE(m) ( (unsigned)((m) - LEFT_RELEASE) <= \ |
60 | (unsigned)(RIGHT_RELEASE - LEFT_RELEASE)) |
61 | |
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62 | /* Bit flags indicating mouse button priorities */ |
63 | #define BUTTON_BEATS(x,y) ( 1 << (((x)-LEFT_BUTTON)*3+(y)-LEFT_BUTTON) ) |
64 | |
4e7ef6e6 |
65 | #define IGNOREARG(x) ( (x) = (x) ) |
7f77ea24 |
66 | |
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67 | typedef struct frontend frontend; |
c8230524 |
68 | typedef struct config_item config_item; |
7f77ea24 |
69 | typedef struct midend_data midend_data; |
70 | typedef struct random_state random_state; |
71 | typedef struct game_params game_params; |
72 | typedef struct game_state game_state; |
74a4e547 |
73 | typedef struct game_ui game_ui; |
2ef96bd6 |
74 | typedef struct game_drawstate game_drawstate; |
be8d5aa1 |
75 | typedef struct game game; |
3161048d |
76 | typedef struct blitter blitter; |
7f77ea24 |
77 | |
4efb3868 |
78 | #define ALIGN_VNORMAL 0x000 |
79 | #define ALIGN_VCENTRE 0x100 |
80 | |
81 | #define ALIGN_HLEFT 0x000 |
82 | #define ALIGN_HCENTRE 0x001 |
83 | #define ALIGN_HRIGHT 0x002 |
84 | |
85 | #define FONT_FIXED 0 |
86 | #define FONT_VARIABLE 1 |
87 | |
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88 | /* |
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89 | * Structure used to pass configuration data between frontend and |
90 | * game |
91 | */ |
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92 | enum { C_STRING, C_CHOICES, C_BOOLEAN, C_END }; |
c8230524 |
93 | struct config_item { |
94 | /* |
95 | * `name' is never dynamically allocated. |
96 | */ |
97 | char *name; |
98 | /* |
99 | * `type' contains one of the above values. |
100 | */ |
101 | int type; |
102 | /* |
95709966 |
103 | * For C_STRING, `sval' is always dynamically allocated and |
104 | * non-NULL. For C_BOOLEAN and C_END, `sval' is always NULL. |
105 | * For C_CHOICES, `sval' is non-NULL, _not_ dynamically |
106 | * allocated, and contains a set of option strings separated by |
107 | * a delimiter. The delimeter is also the first character in |
108 | * the string, so for example ":Foo:Bar:Baz" gives three |
109 | * options `Foo', `Bar' and `Baz'. |
c8230524 |
110 | */ |
111 | char *sval; |
112 | /* |
95709966 |
113 | * For C_BOOLEAN, this is TRUE or FALSE. For C_CHOICES, it |
c8230524 |
114 | * indicates the chosen index from the `sval' list. In the |
115 | * above example, 0==Foo, 1==Bar and 2==Baz. |
116 | */ |
117 | int ival; |
118 | }; |
119 | |
120 | /* |
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121 | * Platform routines |
122 | */ |
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123 | |
7b010604 |
124 | /* We can't use #ifdef DEBUG, because Cygwin defines it by default. */ |
125 | #ifdef DEBUGGING |
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126 | #define debug(x) (debug_printf x) |
127 | void debug_printf(char *fmt, ...); |
128 | #else |
129 | #define debug(x) |
130 | #endif |
131 | |
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132 | void fatal(char *fmt, ...); |
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133 | void frontend_default_colour(frontend *fe, float *output); |
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134 | void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize, |
135 | int align, int colour, char *text); |
2ef96bd6 |
136 | void draw_rect(frontend *fe, int x, int y, int w, int h, int colour); |
137 | void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour); |
138 | void draw_polygon(frontend *fe, int *coords, int npoints, |
139 | int fill, int colour); |
550efd7f |
140 | void draw_circle(frontend *fe, int cx, int cy, int radius, |
141 | int fill, int colour); |
4efb3868 |
142 | void clip(frontend *fe, int x, int y, int w, int h); |
143 | void unclip(frontend *fe); |
2ef96bd6 |
144 | void start_draw(frontend *fe); |
145 | void draw_update(frontend *fe, int x, int y, int w, int h); |
146 | void end_draw(frontend *fe); |
147 | void deactivate_timer(frontend *fe); |
148 | void activate_timer(frontend *fe); |
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149 | void status_bar(frontend *fe, char *text); |
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150 | void get_random_seed(void **randseed, int *randseedsize); |
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151 | |
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152 | blitter *blitter_new(int w, int h); |
153 | void blitter_free(blitter *bl); |
154 | /* save puts the portion of the current display with top-left corner |
155 | * (x,y) to the blitter. load puts it back again to the specified |
156 | * coords, or else wherever it was saved from |
157 | * (if x = y = BLITTER_FROMSAVED). */ |
158 | void blitter_save(frontend *fe, blitter *bl, int x, int y); |
159 | #define BLITTER_FROMSAVED (-1) |
160 | void blitter_load(frontend *fe, blitter *bl, int x, int y); |
161 | |
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162 | /* |
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163 | * midend.c |
164 | */ |
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165 | midend_data *midend_new(frontend *fe, const game *ourgame); |
7f77ea24 |
166 | void midend_free(midend_data *me); |
167 | void midend_set_params(midend_data *me, game_params *params); |
1e3e152d |
168 | void midend_size(midend_data *me, int *x, int *y, int expand); |
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169 | void midend_new_game(midend_data *me); |
7f77ea24 |
170 | void midend_restart_game(midend_data *me); |
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171 | void midend_stop_anim(midend_data *me); |
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172 | int midend_process_key(midend_data *me, int x, int y, int button); |
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173 | void midend_force_redraw(midend_data *me); |
2ef96bd6 |
174 | void midend_redraw(midend_data *me); |
175 | float *midend_colours(midend_data *me, int *ncolours); |
176 | void midend_timer(midend_data *me, float tplus); |
eb2ad6f1 |
177 | int midend_num_presets(midend_data *me); |
178 | void midend_fetch_preset(midend_data *me, int n, |
179 | char **name, game_params **params); |
fd1a1a2b |
180 | int midend_wants_statusbar(midend_data *me); |
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181 | enum { CFG_SETTINGS, CFG_SEED, CFG_DESC }; |
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182 | config_item *midend_get_config(midend_data *me, int which, char **wintitle); |
183 | char *midend_set_config(midend_data *me, int which, config_item *cfg); |
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184 | char *midend_game_id(midend_data *me, char *id); |
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185 | char *midend_text_format(midend_data *me); |
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186 | char *midend_solve(midend_data *me); |
0a6892db |
187 | void midend_supersede_game_desc(midend_data *me, char *desc, char *privdesc); |
48dcdd62 |
188 | char *midend_rewrite_statusbar(midend_data *me, char *text); |
a4393230 |
189 | void midend_serialise(midend_data *me, |
190 | void (*write)(void *ctx, void *buf, int len), |
191 | void *wctx); |
192 | char *midend_deserialise(midend_data *me, |
193 | int (*read)(void *ctx, void *buf, int len), |
194 | void *rctx); |
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195 | |
196 | /* |
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197 | * malloc.c |
198 | */ |
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199 | void *smalloc(size_t size); |
200 | void *srealloc(void *p, size_t size); |
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201 | void sfree(void *p); |
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202 | char *dupstr(const char *s); |
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203 | #define snew(type) \ |
204 | ( (type *) smalloc (sizeof (type)) ) |
205 | #define snewn(number, type) \ |
206 | ( (type *) smalloc ((number) * sizeof (type)) ) |
207 | #define sresize(array, number, type) \ |
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208 | ( (type *) srealloc ((array), (number) * sizeof (type)) ) |
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209 | |
210 | /* |
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211 | * misc.c |
212 | */ |
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213 | void free_cfg(config_item *cfg); |
74476385 |
214 | void obfuscate_bitmap(unsigned char *bmp, int bits, int decode); |
215 | |
216 | /* allocates output each time. len is always in bytes of binary data. |
217 | * May assert (or just go wrong) if lengths are unchecked. */ |
218 | char *bin2hex(const unsigned char *in, int inlen); |
219 | unsigned char *hex2bin(const char *in, int outlen); |
220 | |
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221 | |
222 | /* |
97098757 |
223 | * version.c |
224 | */ |
225 | extern char ver[]; |
226 | |
227 | /* |
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228 | * random.c |
229 | */ |
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230 | random_state *random_init(char *seed, int len); |
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231 | unsigned long random_bits(random_state *state, int bits); |
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232 | unsigned long random_upto(random_state *state, unsigned long limit); |
233 | void random_free(random_state *state); |
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234 | char *random_state_encode(random_state *state); |
235 | random_state *random_state_decode(char *input); |
7959b517 |
236 | /* random.c also exports SHA, which occasionally comes in useful. */ |
237 | typedef unsigned long uint32; |
238 | typedef struct { |
239 | uint32 h[5]; |
240 | unsigned char block[64]; |
241 | int blkused; |
242 | uint32 lenhi, lenlo; |
243 | } SHA_State; |
244 | void SHA_Init(SHA_State *s); |
245 | void SHA_Bytes(SHA_State *s, void *p, int len); |
246 | void SHA_Final(SHA_State *s, unsigned char *output); |
247 | void SHA_Simple(void *p, int len, unsigned char *output); |
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248 | |
249 | /* |
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250 | * Data structure containing the function calls and data specific |
251 | * to a particular game. This is enclosed in a data structure so |
252 | * that a particular platform can choose, if it wishes, to compile |
253 | * all the games into a single combined executable rather than |
254 | * having lots of little ones. |
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255 | */ |
be8d5aa1 |
256 | struct game { |
257 | const char *name; |
258 | const char *winhelp_topic; |
be8d5aa1 |
259 | game_params *(*default_params)(void); |
260 | int (*fetch_preset)(int i, char **name, game_params **params); |
1185e3c5 |
261 | void (*decode_params)(game_params *, char const *string); |
262 | char *(*encode_params)(game_params *, int full); |
be8d5aa1 |
263 | void (*free_params)(game_params *params); |
264 | game_params *(*dup_params)(game_params *params); |
1d228b10 |
265 | int can_configure; |
be8d5aa1 |
266 | config_item *(*configure)(game_params *params); |
267 | game_params *(*custom_params)(config_item *cfg); |
268 | char *(*validate_params)(game_params *params); |
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269 | char *(*new_desc)(game_params *params, random_state *rs, |
c566778e |
270 | char **aux, int interactive); |
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271 | char *(*validate_desc)(game_params *params, char *desc); |
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272 | game_state *(*new_game)(midend_data *me, game_params *params, char *desc); |
be8d5aa1 |
273 | game_state *(*dup_game)(game_state *state); |
274 | void (*free_game)(game_state *state); |
2ac6d24e |
275 | int can_solve; |
df11cd4e |
276 | char *(*solve)(game_state *orig, game_state *curr, |
c566778e |
277 | char *aux, char **error); |
9b4b03d3 |
278 | int can_format_as_text; |
279 | char *(*text_format)(game_state *state); |
be8d5aa1 |
280 | game_ui *(*new_ui)(game_state *state); |
281 | void (*free_ui)(game_ui *ui); |
ae8290c6 |
282 | char *(*encode_ui)(game_ui *ui); |
283 | void (*decode_ui)(game_ui *ui, char *encoding); |
07dfb697 |
284 | void (*changed_state)(game_ui *ui, game_state *oldstate, |
285 | game_state *newstate); |
df11cd4e |
286 | char *(*interpret_move)(game_state *state, game_ui *ui, game_drawstate *ds, |
287 | int x, int y, int button); |
288 | game_state *(*execute_move)(game_state *state, char *move); |
1e3e152d |
289 | void (*size)(game_params *params, game_drawstate *ds, int *x, int *y, |
290 | int expand); |
be8d5aa1 |
291 | float *(*colours)(frontend *fe, game_state *state, int *ncolours); |
292 | game_drawstate *(*new_drawstate)(game_state *state); |
293 | void (*free_drawstate)(game_drawstate *ds); |
294 | void (*redraw)(frontend *fe, game_drawstate *ds, game_state *oldstate, |
295 | game_state *newstate, int dir, game_ui *ui, float anim_time, |
296 | float flash_time); |
e3f21163 |
297 | float (*anim_length)(game_state *oldstate, game_state *newstate, int dir, |
298 | game_ui *ui); |
299 | float (*flash_length)(game_state *oldstate, game_state *newstate, int dir, |
300 | game_ui *ui); |
be8d5aa1 |
301 | int (*wants_statusbar)(void); |
48dcdd62 |
302 | int is_timed; |
303 | int (*timing_state)(game_state *state); |
93b1da3d |
304 | int mouse_priorities; |
be8d5aa1 |
305 | }; |
306 | |
307 | /* |
308 | * For one-game-at-a-time platforms, there's a single structure |
19ef4855 |
309 | * like the above, under a fixed name. For all-at-once platforms, |
310 | * there's a list of all available puzzles in array form. |
be8d5aa1 |
311 | */ |
19ef4855 |
312 | #ifdef COMBINED |
313 | extern const game *gamelist[]; |
314 | extern const int gamecount; |
315 | #else |
be8d5aa1 |
316 | extern const game thegame; |
317 | #endif |
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318 | |
319 | #endif /* PUZZLES_PUZZLES_H */ |