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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, |
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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, |
3c833d45 |
46 | |
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47 | /* made smaller because of 'limited range of datatype' errors. */ |
48 | MOD_CTRL = 0x1000, |
49 | MOD_SHFT = 0x2000, |
50 | MOD_NUM_KEYPAD = 0x4000, |
51 | MOD_MASK = 0x7000 /* mask for all modifiers */ |
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52 | }; |
53 | |
6776a950 |
54 | #define IS_MOUSE_DOWN(m) ( (unsigned)((m) - LEFT_BUTTON) <= \ |
55 | (unsigned)(RIGHT_BUTTON - LEFT_BUTTON)) |
56 | #define IS_MOUSE_DRAG(m) ( (unsigned)((m) - LEFT_DRAG) <= \ |
57 | (unsigned)(RIGHT_DRAG - LEFT_DRAG)) |
58 | #define IS_MOUSE_RELEASE(m) ( (unsigned)((m) - LEFT_RELEASE) <= \ |
59 | (unsigned)(RIGHT_RELEASE - LEFT_RELEASE)) |
60 | |
93b1da3d |
61 | /* Bit flags indicating mouse button priorities */ |
62 | #define BUTTON_BEATS(x,y) ( 1 << (((x)-LEFT_BUTTON)*3+(y)-LEFT_BUTTON) ) |
63 | |
4e7ef6e6 |
64 | #define IGNOREARG(x) ( (x) = (x) ) |
7f77ea24 |
65 | |
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66 | typedef struct frontend frontend; |
c8230524 |
67 | typedef struct config_item config_item; |
7f77ea24 |
68 | typedef struct midend_data midend_data; |
69 | typedef struct random_state random_state; |
70 | typedef struct game_params game_params; |
71 | typedef struct game_state game_state; |
6f2d8d7c |
72 | typedef struct game_aux_info game_aux_info; |
74a4e547 |
73 | typedef struct game_ui game_ui; |
2ef96bd6 |
74 | typedef struct game_drawstate game_drawstate; |
be8d5aa1 |
75 | typedef struct game game; |
7f77ea24 |
76 | |
4efb3868 |
77 | #define ALIGN_VNORMAL 0x000 |
78 | #define ALIGN_VCENTRE 0x100 |
79 | |
80 | #define ALIGN_HLEFT 0x000 |
81 | #define ALIGN_HCENTRE 0x001 |
82 | #define ALIGN_HRIGHT 0x002 |
83 | |
84 | #define FONT_FIXED 0 |
85 | #define FONT_VARIABLE 1 |
86 | |
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87 | /* |
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88 | * Structure used to pass configuration data between frontend and |
89 | * game |
90 | */ |
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91 | enum { C_STRING, C_CHOICES, C_BOOLEAN, C_END }; |
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92 | struct config_item { |
93 | /* |
94 | * `name' is never dynamically allocated. |
95 | */ |
96 | char *name; |
97 | /* |
98 | * `type' contains one of the above values. |
99 | */ |
100 | int type; |
101 | /* |
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102 | * For C_STRING, `sval' is always dynamically allocated and |
103 | * non-NULL. For C_BOOLEAN and C_END, `sval' is always NULL. |
104 | * For C_CHOICES, `sval' is non-NULL, _not_ dynamically |
105 | * allocated, and contains a set of option strings separated by |
106 | * a delimiter. The delimeter is also the first character in |
107 | * the string, so for example ":Foo:Bar:Baz" gives three |
108 | * options `Foo', `Bar' and `Baz'. |
c8230524 |
109 | */ |
110 | char *sval; |
111 | /* |
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112 | * For C_BOOLEAN, this is TRUE or FALSE. For C_CHOICES, it |
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113 | * indicates the chosen index from the `sval' list. In the |
114 | * above example, 0==Foo, 1==Bar and 2==Baz. |
115 | */ |
116 | int ival; |
117 | }; |
118 | |
119 | /* |
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120 | * Platform routines |
121 | */ |
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122 | |
123 | #ifdef DEBUG |
124 | #define debug(x) (debug_printf x) |
125 | void debug_printf(char *fmt, ...); |
126 | #else |
127 | #define debug(x) |
128 | #endif |
129 | |
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130 | void fatal(char *fmt, ...); |
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131 | void frontend_default_colour(frontend *fe, float *output); |
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132 | void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize, |
133 | int align, int colour, char *text); |
2ef96bd6 |
134 | void draw_rect(frontend *fe, int x, int y, int w, int h, int colour); |
135 | void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour); |
136 | void draw_polygon(frontend *fe, int *coords, int npoints, |
137 | int fill, int colour); |
4efb3868 |
138 | void clip(frontend *fe, int x, int y, int w, int h); |
139 | void unclip(frontend *fe); |
2ef96bd6 |
140 | void start_draw(frontend *fe); |
141 | void draw_update(frontend *fe, int x, int y, int w, int h); |
142 | void end_draw(frontend *fe); |
143 | void deactivate_timer(frontend *fe); |
144 | void activate_timer(frontend *fe); |
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145 | void status_bar(frontend *fe, char *text); |
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146 | void get_random_seed(void **randseed, int *randseedsize); |
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147 | |
148 | /* |
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149 | * midend.c |
150 | */ |
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151 | midend_data *midend_new(frontend *fe, const game *ourgame); |
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152 | void midend_free(midend_data *me); |
153 | void midend_set_params(midend_data *me, game_params *params); |
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154 | void midend_size(midend_data *me, int *x, int *y, int expand); |
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155 | void midend_new_game(midend_data *me); |
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156 | void midend_restart_game(midend_data *me); |
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157 | void midend_stop_anim(midend_data *me); |
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158 | int midend_process_key(midend_data *me, int x, int y, int button); |
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159 | void midend_force_redraw(midend_data *me); |
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160 | void midend_redraw(midend_data *me); |
161 | float *midend_colours(midend_data *me, int *ncolours); |
162 | void midend_timer(midend_data *me, float tplus); |
eb2ad6f1 |
163 | int midend_num_presets(midend_data *me); |
164 | void midend_fetch_preset(midend_data *me, int n, |
165 | char **name, game_params **params); |
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166 | int midend_wants_statusbar(midend_data *me); |
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167 | enum { CFG_SETTINGS, CFG_SEED, CFG_DESC }; |
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168 | config_item *midend_get_config(midend_data *me, int which, char **wintitle); |
169 | char *midend_set_config(midend_data *me, int which, config_item *cfg); |
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170 | char *midend_game_id(midend_data *me, char *id); |
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171 | char *midend_text_format(midend_data *me); |
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172 | char *midend_solve(midend_data *me); |
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173 | void midend_supersede_game_desc(midend_data *me, char *desc); |
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174 | char *midend_rewrite_statusbar(midend_data *me, char *text); |
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175 | |
176 | /* |
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177 | * malloc.c |
178 | */ |
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179 | void *smalloc(size_t size); |
180 | void *srealloc(void *p, size_t size); |
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181 | void sfree(void *p); |
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182 | char *dupstr(const char *s); |
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183 | #define snew(type) \ |
184 | ( (type *) smalloc (sizeof (type)) ) |
185 | #define snewn(number, type) \ |
186 | ( (type *) smalloc ((number) * sizeof (type)) ) |
187 | #define sresize(array, number, type) \ |
7f77ea24 |
188 | ( (type *) srealloc ((array), (number) * sizeof (type)) ) |
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189 | |
190 | /* |
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191 | * misc.c |
192 | */ |
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193 | void free_cfg(config_item *cfg); |
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194 | |
195 | /* |
97098757 |
196 | * version.c |
197 | */ |
198 | extern char ver[]; |
199 | |
200 | /* |
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201 | * random.c |
202 | */ |
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203 | random_state *random_init(char *seed, int len); |
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204 | unsigned long random_bits(random_state *state, int bits); |
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205 | unsigned long random_upto(random_state *state, unsigned long limit); |
206 | void random_free(random_state *state); |
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207 | char *random_state_encode(random_state *state); |
208 | random_state *random_state_decode(char *input); |
7959b517 |
209 | /* random.c also exports SHA, which occasionally comes in useful. */ |
210 | typedef unsigned long uint32; |
211 | typedef struct { |
212 | uint32 h[5]; |
213 | unsigned char block[64]; |
214 | int blkused; |
215 | uint32 lenhi, lenlo; |
216 | } SHA_State; |
217 | void SHA_Init(SHA_State *s); |
218 | void SHA_Bytes(SHA_State *s, void *p, int len); |
219 | void SHA_Final(SHA_State *s, unsigned char *output); |
220 | void SHA_Simple(void *p, int len, unsigned char *output); |
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221 | |
222 | /* |
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223 | * Data structure containing the function calls and data specific |
224 | * to a particular game. This is enclosed in a data structure so |
225 | * that a particular platform can choose, if it wishes, to compile |
226 | * all the games into a single combined executable rather than |
227 | * having lots of little ones. |
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228 | */ |
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229 | struct game { |
230 | const char *name; |
231 | const char *winhelp_topic; |
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232 | game_params *(*default_params)(void); |
233 | int (*fetch_preset)(int i, char **name, game_params **params); |
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234 | void (*decode_params)(game_params *, char const *string); |
235 | char *(*encode_params)(game_params *, int full); |
be8d5aa1 |
236 | void (*free_params)(game_params *params); |
237 | game_params *(*dup_params)(game_params *params); |
1d228b10 |
238 | int can_configure; |
be8d5aa1 |
239 | config_item *(*configure)(game_params *params); |
240 | game_params *(*custom_params)(config_item *cfg); |
241 | char *(*validate_params)(game_params *params); |
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242 | char *(*new_desc)(game_params *params, random_state *rs, |
6aa6af4c |
243 | game_aux_info **aux, int interactive); |
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244 | void (*free_aux_info)(game_aux_info *aux); |
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245 | char *(*validate_desc)(game_params *params, char *desc); |
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246 | game_state *(*new_game)(midend_data *me, game_params *params, char *desc); |
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247 | game_state *(*dup_game)(game_state *state); |
248 | void (*free_game)(game_state *state); |
2ac6d24e |
249 | int can_solve; |
250 | game_state *(*solve)(game_state *state, game_aux_info *aux, char **error); |
9b4b03d3 |
251 | int can_format_as_text; |
252 | char *(*text_format)(game_state *state); |
be8d5aa1 |
253 | game_ui *(*new_ui)(game_state *state); |
254 | void (*free_ui)(game_ui *ui); |
07dfb697 |
255 | void (*changed_state)(game_ui *ui, game_state *oldstate, |
256 | game_state *newstate); |
c0361acd |
257 | game_state *(*make_move)(game_state *from, game_ui *ui, game_drawstate *ds, |
258 | int x, int y, int button); |
1e3e152d |
259 | void (*size)(game_params *params, game_drawstate *ds, int *x, int *y, |
260 | int expand); |
be8d5aa1 |
261 | float *(*colours)(frontend *fe, game_state *state, int *ncolours); |
262 | game_drawstate *(*new_drawstate)(game_state *state); |
263 | void (*free_drawstate)(game_drawstate *ds); |
264 | void (*redraw)(frontend *fe, game_drawstate *ds, game_state *oldstate, |
265 | game_state *newstate, int dir, game_ui *ui, float anim_time, |
266 | float flash_time); |
e3f21163 |
267 | float (*anim_length)(game_state *oldstate, game_state *newstate, int dir, |
268 | game_ui *ui); |
269 | float (*flash_length)(game_state *oldstate, game_state *newstate, int dir, |
270 | game_ui *ui); |
be8d5aa1 |
271 | int (*wants_statusbar)(void); |
48dcdd62 |
272 | int is_timed; |
273 | int (*timing_state)(game_state *state); |
93b1da3d |
274 | int mouse_priorities; |
be8d5aa1 |
275 | }; |
276 | |
277 | /* |
278 | * For one-game-at-a-time platforms, there's a single structure |
19ef4855 |
279 | * like the above, under a fixed name. For all-at-once platforms, |
280 | * there's a list of all available puzzles in array form. |
be8d5aa1 |
281 | */ |
19ef4855 |
282 | #ifdef COMBINED |
283 | extern const game *gamelist[]; |
284 | extern const int gamecount; |
285 | #else |
be8d5aa1 |
286 | extern const game thegame; |
287 | #endif |
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288 | |
289 | #endif /* PUZZLES_PUZZLES_H */ |