6bbab0fe |
1 | /* |
2 | * 'same game' -- try to remove all the coloured squares by |
3 | * selecting regions of contiguous colours. |
4 | */ |
5 | |
6 | #include <stdio.h> |
7 | #include <stdlib.h> |
8 | #include <string.h> |
9 | #include <assert.h> |
10 | #include <ctype.h> |
11 | #include <math.h> |
12 | |
13 | #include "puzzles.h" |
14 | |
15 | #define TILE_INNER (ds->tileinner) |
16 | #define TILE_GAP (ds->tilegap) |
17 | #define TILE_SIZE (TILE_INNER + TILE_GAP) |
18 | #define PREFERRED_TILE_SIZE 32 |
19 | #define BORDER (TILE_SIZE / 2) |
20 | #define HIGHLIGHT_WIDTH 2 |
21 | |
22 | #define FLASH_FRAME 0.13F |
23 | |
24 | #define COORD(x) ( (x) * TILE_SIZE + BORDER ) |
25 | #define FROMCOORD(x) ( ((x) - BORDER + TILE_SIZE) / TILE_SIZE - 1 ) |
26 | |
27 | #define X(state, i) ( (i) % (state)->params.w ) |
28 | #define Y(state, i) ( (i) / (state)->params.w ) |
29 | #define C(state, x, y) ( (y) * (state)->w + (x) ) |
30 | |
31 | enum { |
32 | COL_BACKGROUND, |
33 | COL_1, COL_2, COL_3, COL_4, COL_5, COL_6, COL_7, COL_8, COL_9, |
34 | COL_IMPOSSIBLE, COL_SEL, COL_HIGHLIGHT, COL_LOWLIGHT, |
35 | NCOLOURS |
36 | }; |
37 | |
38 | /* scoresub is 1 or 2 (for (n-1)^2 or (n-2)^2) */ |
39 | struct game_params { |
40 | int w, h, ncols, scoresub; |
41 | }; |
42 | |
43 | /* These flags must be unique across all uses; in the game_state, |
44 | * the game_ui, and the drawstate (as they all get combined in the |
45 | * drawstate). */ |
f1359c5e |
46 | #define TILE_COLMASK 0x00ff |
47 | #define TILE_SELECTED 0x0100 /* used in ui and drawstate */ |
48 | #define TILE_JOINRIGHT 0x0200 /* used in drawstate */ |
49 | #define TILE_JOINDOWN 0x0400 /* used in drawstate */ |
50 | #define TILE_JOINDIAG 0x0800 /* used in drawstate */ |
51 | #define TILE_HASSEL 0x1000 /* used in drawstate */ |
d951510d |
52 | #define TILE_IMPOSSIBLE 0x2000 /* used in drawstate */ |
6bbab0fe |
53 | |
54 | #define TILE(gs,x,y) ((gs)->tiles[(gs)->params.w*(y)+(x)]) |
55 | #define COL(gs,x,y) (TILE(gs,x,y) & TILE_COLMASK) |
56 | #define ISSEL(gs,x,y) (TILE(gs,x,y) & TILE_SELECTED) |
57 | |
58 | #define SWAPTILE(gs,x1,y1,x2,y2) do { \ |
59 | int t = TILE(gs,x1,y1); \ |
60 | TILE(gs,x1,y1) = TILE(gs,x2,y2); \ |
61 | TILE(gs,x2,y2) = t; \ |
62 | } while (0) |
63 | |
64 | static int npoints(game_params *params, int nsel) |
65 | { |
66 | int sdiff = nsel - params->scoresub; |
67 | return (sdiff > 0) ? sdiff * sdiff : 0; |
68 | } |
69 | |
70 | struct game_state { |
71 | struct game_params params; |
72 | int n; |
73 | int *tiles; /* colour only */ |
74 | int score; |
75 | int complete, impossible; |
76 | }; |
77 | |
78 | static game_params *default_params(void) |
79 | { |
80 | game_params *ret = snew(game_params); |
81 | ret->w = 5; |
82 | ret->h = 5; |
83 | ret->ncols = 3; |
84 | ret->scoresub = 2; |
85 | return ret; |
86 | } |
87 | |
88 | static const struct game_params samegame_presets[] = { |
89 | { 5, 5, 3, 2 }, |
90 | { 10, 5, 3, 2 }, |
91 | { 15, 10, 3, 2 }, |
92 | { 15, 10, 4, 2 }, |
93 | { 20, 15, 4, 2 } |
94 | }; |
95 | |
96 | static int game_fetch_preset(int i, char **name, game_params **params) |
97 | { |
98 | game_params *ret; |
99 | char str[80]; |
100 | |
101 | if (i < 0 || i >= lenof(samegame_presets)) |
102 | return FALSE; |
103 | |
104 | ret = snew(game_params); |
105 | *ret = samegame_presets[i]; |
106 | |
107 | sprintf(str, "%dx%d, %d colours", ret->w, ret->h, ret->ncols); |
108 | |
109 | *name = dupstr(str); |
110 | *params = ret; |
111 | return TRUE; |
112 | } |
113 | |
114 | static void free_params(game_params *params) |
115 | { |
116 | sfree(params); |
117 | } |
118 | |
119 | static game_params *dup_params(game_params *params) |
120 | { |
121 | game_params *ret = snew(game_params); |
122 | *ret = *params; /* structure copy */ |
123 | return ret; |
124 | } |
125 | |
126 | static void decode_params(game_params *params, char const *string) |
127 | { |
128 | char const *p = string; |
129 | |
130 | params->w = atoi(p); |
131 | while (*p && isdigit((unsigned char)*p)) p++; |
132 | if (*p == 'x') { |
133 | p++; |
134 | params->h = atoi(p); |
135 | while (*p && isdigit((unsigned char)*p)) p++; |
136 | } else { |
137 | params->h = params->w; |
138 | } |
139 | if (*p++ == 'c') { |
140 | params->ncols = atoi(p); |
141 | while (*p && isdigit((unsigned char)*p)) p++; |
142 | } else { |
143 | params->ncols = 3; |
144 | } |
145 | if (*p++ == 's') { |
146 | params->scoresub = atoi(p); |
147 | while (*p && isdigit((unsigned char)*p)) p++; |
148 | } else { |
149 | params->scoresub = 2; |
150 | } |
151 | } |
152 | |
153 | static char *encode_params(game_params *params, int full) |
154 | { |
155 | char ret[80]; |
156 | |
157 | sprintf(ret, "%dx%dc%ds%d", |
158 | params->w, params->h, params->ncols, params->scoresub); |
159 | return dupstr(ret); |
160 | } |
161 | |
162 | static config_item *game_configure(game_params *params) |
163 | { |
164 | config_item *ret; |
165 | char buf[80]; |
166 | |
167 | ret = snewn(5, config_item); |
168 | |
169 | ret[0].name = "Width"; |
170 | ret[0].type = C_STRING; |
171 | sprintf(buf, "%d", params->w); |
172 | ret[0].sval = dupstr(buf); |
173 | ret[0].ival = 0; |
174 | |
175 | ret[1].name = "Height"; |
176 | ret[1].type = C_STRING; |
177 | sprintf(buf, "%d", params->h); |
178 | ret[1].sval = dupstr(buf); |
179 | ret[1].ival = 0; |
180 | |
181 | ret[2].name = "No. of colours"; |
182 | ret[2].type = C_STRING; |
183 | sprintf(buf, "%d", params->ncols); |
184 | ret[2].sval = dupstr(buf); |
185 | ret[2].ival = 0; |
186 | |
187 | ret[3].name = "Scoring system"; |
188 | ret[3].type = C_CHOICES; |
189 | ret[3].sval = ":(n-1)^2:(n-2)^2"; |
190 | ret[3].ival = params->scoresub-1; |
191 | |
192 | ret[4].name = NULL; |
193 | ret[4].type = C_END; |
194 | ret[4].sval = NULL; |
195 | ret[4].ival = 0; |
196 | |
197 | return ret; |
198 | } |
199 | |
200 | static game_params *custom_params(config_item *cfg) |
201 | { |
202 | game_params *ret = snew(game_params); |
203 | |
204 | ret->w = atoi(cfg[0].sval); |
205 | ret->h = atoi(cfg[1].sval); |
206 | ret->ncols = atoi(cfg[2].sval); |
207 | ret->scoresub = cfg[3].ival + 1; |
208 | |
209 | return ret; |
210 | } |
211 | |
212 | static char *validate_params(game_params *params) |
213 | { |
214 | if (params->w < 1 || params->h < 1) |
215 | return "Width and height must both be positive"; |
216 | if (params->ncols < 2) |
217 | return "It's too easy with only one colour..."; |
218 | if (params->ncols > 9) |
219 | return "Maximum of 9 colours"; |
220 | |
221 | /* ...and we must make sure we can generate at least 2 squares |
222 | * of each colour so it's theoretically soluble. */ |
223 | if ((params->w * params->h) < (params->ncols * 2)) |
224 | return "Too many colours makes given grid size impossible"; |
225 | |
226 | if ((params->scoresub < 1) || (params->scoresub > 2)) |
227 | return "Scoring system not recognised"; |
228 | |
229 | return NULL; |
230 | } |
231 | |
232 | /* Currently this is a very very dumb game-generation engine; it |
233 | * just picks randomly from the tile space. I had a look at a few |
234 | * other same game implementations, and none of them attempt to do |
235 | * anything to try and make sure the grid started off with a nice |
236 | * set of large blocks. |
237 | * |
238 | * It does at least make sure that there are >= 2 of each colour |
239 | * present at the start. |
240 | */ |
241 | |
242 | static char *new_game_desc(game_params *params, random_state *rs, |
243 | game_aux_info **aux, int interactive) |
244 | { |
245 | char *ret; |
246 | int n, i, j, c, retlen, *tiles; |
247 | |
6bbab0fe |
248 | n = params->w * params->h; |
249 | tiles = snewn(n, int); |
250 | memset(tiles, 0, n*sizeof(int)); |
251 | |
252 | /* randomly place two of each colour */ |
253 | for (c = 0; c < params->ncols; c++) { |
254 | for (j = 0; j < 2; j++) { |
255 | do { |
256 | i = (int)random_upto(rs, n); |
257 | } while (tiles[i] != 0); |
258 | tiles[i] = c+1; |
259 | } |
260 | } |
261 | |
262 | /* fill in the rest randomly */ |
263 | for (i = 0; i < n; i++) { |
264 | if (tiles[i] == 0) |
265 | tiles[i] = (int)random_upto(rs, params->ncols)+1; |
266 | } |
267 | |
268 | ret = NULL; |
269 | retlen = 0; |
270 | for (i = 0; i < n; i++) { |
271 | char buf[80]; |
272 | int k; |
273 | |
274 | k = sprintf(buf, "%d,", tiles[i]); |
275 | ret = sresize(ret, retlen + k + 1, char); |
276 | strcpy(ret + retlen, buf); |
277 | retlen += k; |
278 | } |
279 | ret[retlen-1] = '\0'; /* delete last comma */ |
280 | |
281 | sfree(tiles); |
282 | return ret; |
283 | } |
284 | |
285 | static void game_free_aux_info(game_aux_info *aux) |
286 | { |
287 | assert(!"Shouldn't happen"); |
288 | } |
289 | |
290 | static char *validate_desc(game_params *params, char *desc) |
291 | { |
292 | int area = params->w * params->h, i; |
293 | char *p = desc; |
294 | |
295 | for (i = 0; i < area; i++) { |
296 | char *q = p; |
297 | int n; |
298 | |
299 | if (!isdigit(*p)) |
300 | return "Not enough numbers in string"; |
301 | while (isdigit(*p)) p++; |
302 | |
303 | if (i < area-1 && *p != ',') |
304 | return "Expected comma after number"; |
305 | else if (i == area-1 && *p) |
306 | return "Excess junk at end of string"; |
307 | |
308 | n = atoi(q); |
309 | if (n < 0 || n > params->ncols) |
310 | return "Colour out of range"; |
311 | |
312 | if (*p) p++; /* eat comma */ |
313 | } |
314 | return NULL; |
315 | } |
316 | |
317 | static game_state *new_game(midend_data *me, game_params *params, char *desc) |
318 | { |
319 | game_state *state = snew(game_state); |
320 | char *p = desc; |
321 | int i; |
322 | |
323 | state->params = *params; /* struct copy */ |
324 | state->n = state->params.w * state->params.h; |
325 | state->tiles = snewn(state->n, int); |
326 | |
327 | for (i = 0; i < state->n; i++) { |
328 | assert(*p); |
329 | state->tiles[i] = atoi(p); |
330 | while (*p && *p != ',') |
331 | p++; |
332 | if (*p) p++; /* eat comma */ |
333 | } |
334 | state->complete = state->impossible = 0; |
335 | state->score = 0; |
336 | |
337 | return state; |
338 | } |
339 | |
340 | static game_state *dup_game(game_state *state) |
341 | { |
342 | game_state *ret = snew(game_state); |
343 | |
344 | *ret = *state; /* structure copy, except... */ |
345 | |
346 | ret->tiles = snewn(state->n, int); |
347 | memcpy(ret->tiles, state->tiles, state->n * sizeof(int)); |
348 | |
349 | return ret; |
350 | } |
351 | |
352 | static void free_game(game_state *state) |
353 | { |
354 | sfree(state->tiles); |
355 | sfree(state); |
356 | } |
357 | |
df11cd4e |
358 | static char *solve_game(game_state *state, game_state *currstate, |
359 | game_aux_info *aux, char **error) |
6bbab0fe |
360 | { |
361 | return NULL; |
362 | } |
363 | |
364 | static char *game_text_format(game_state *state) |
365 | { |
366 | char *ret, *p; |
367 | int x, y, maxlen; |
368 | |
369 | maxlen = state->params.h * (state->params.w + 1); |
370 | ret = snewn(maxlen+1, char); |
371 | p = ret; |
372 | |
373 | for (y = 0; y < state->params.h; y++) { |
374 | for (x = 0; x < state->params.w; x++) { |
375 | int t = TILE(state,x,y); |
376 | if (t <= 0) *p++ = ' '; |
377 | else if (t < 10) *p++ = '0'+t; |
378 | else *p++ = 'a'+(t-10); |
379 | } |
380 | *p++ = '\n'; |
381 | } |
382 | assert(p - ret == maxlen); |
383 | *p = '\0'; |
384 | return ret; |
385 | } |
386 | |
387 | struct game_ui { |
388 | struct game_params params; |
389 | int *tiles; /* selected-ness only */ |
390 | int nselected; |
f1359c5e |
391 | int xsel, ysel, displaysel; |
6bbab0fe |
392 | }; |
393 | |
394 | static game_ui *new_ui(game_state *state) |
395 | { |
396 | game_ui *ui = snew(game_ui); |
397 | |
398 | ui->params = state->params; /* structure copy */ |
399 | ui->tiles = snewn(state->n, int); |
400 | memset(ui->tiles, 0, state->n*sizeof(int)); |
401 | ui->nselected = 0; |
402 | |
f1359c5e |
403 | ui->xsel = ui->ysel = ui->displaysel = 0; |
404 | |
6bbab0fe |
405 | return ui; |
406 | } |
407 | |
408 | static void free_ui(game_ui *ui) |
409 | { |
410 | sfree(ui->tiles); |
411 | sfree(ui); |
412 | } |
413 | |
414 | static void sel_clear(game_ui *ui, game_state *state) |
415 | { |
416 | int i; |
417 | |
418 | for (i = 0; i < state->n; i++) |
419 | ui->tiles[i] &= ~TILE_SELECTED; |
420 | ui->nselected = 0; |
6bbab0fe |
421 | } |
422 | |
423 | |
424 | static void game_changed_state(game_ui *ui, game_state *oldstate, |
425 | game_state *newstate) |
426 | { |
427 | sel_clear(ui, newstate); |
428 | } |
429 | |
df11cd4e |
430 | static char *sel_movedesc(game_ui *ui, game_state *state) |
6bbab0fe |
431 | { |
df11cd4e |
432 | int i; |
433 | char *ret, *sep, buf[80]; |
434 | int retlen, retsize; |
6bbab0fe |
435 | |
df11cd4e |
436 | retsize = 256; |
437 | ret = snewn(retsize, char); |
438 | retlen = 0; |
439 | ret[retlen++] = 'M'; |
440 | sep = ""; |
6bbab0fe |
441 | |
442 | for (i = 0; i < state->n; i++) { |
443 | if (ui->tiles[i] & TILE_SELECTED) { |
df11cd4e |
444 | sprintf(buf, "%s%d", sep, i); |
445 | sep = ","; |
446 | if (retlen + strlen(buf) >= retsize) { |
447 | retsize = retlen + strlen(buf) + 256; |
448 | ret = sresize(ret, retsize, char); |
449 | } |
450 | strcpy(ret + retlen, buf); |
451 | retlen += strlen(buf); |
452 | |
6bbab0fe |
453 | ui->tiles[i] &= ~TILE_SELECTED; |
454 | } |
455 | } |
456 | ui->nselected = 0; |
df11cd4e |
457 | |
458 | assert(retlen < retsize); |
459 | ret[retlen++] = '\0'; |
460 | return sresize(ret, retlen, char); |
6bbab0fe |
461 | } |
462 | |
463 | static void sel_expand(game_ui *ui, game_state *state, int tx, int ty) |
464 | { |
465 | int ns = 1, nadded, x, y, c; |
466 | |
467 | TILE(ui,tx,ty) |= TILE_SELECTED; |
6bbab0fe |
468 | do { |
469 | nadded = 0; |
470 | |
471 | for (x = 0; x < state->params.w; x++) { |
472 | for (y = 0; y < state->params.h; y++) { |
473 | if (x == tx && y == ty) continue; |
474 | if (ISSEL(ui,x,y)) continue; |
475 | |
476 | c = COL(state,x,y); |
477 | if ((x > 0) && |
478 | ISSEL(ui,x-1,y) && COL(state,x-1,y) == c) { |
479 | TILE(ui,x,y) |= TILE_SELECTED; |
480 | nadded++; |
481 | continue; |
482 | } |
483 | |
484 | if ((x+1 < state->params.w) && |
485 | ISSEL(ui,x+1,y) && COL(state,x+1,y) == c) { |
486 | TILE(ui,x,y) |= TILE_SELECTED; |
487 | nadded++; |
488 | continue; |
489 | } |
490 | |
491 | if ((y > 0) && |
492 | ISSEL(ui,x,y-1) && COL(state,x,y-1) == c) { |
493 | TILE(ui,x,y) |= TILE_SELECTED; |
494 | nadded++; |
495 | continue; |
496 | } |
497 | |
498 | if ((y+1 < state->params.h) && |
499 | ISSEL(ui,x,y+1) && COL(state,x,y+1) == c) { |
500 | TILE(ui,x,y) |= TILE_SELECTED; |
501 | nadded++; |
502 | continue; |
503 | } |
504 | } |
505 | } |
506 | ns += nadded; |
6bbab0fe |
507 | } while (nadded > 0); |
508 | |
509 | if (ns > 1) { |
510 | ui->nselected = ns; |
511 | } else { |
512 | sel_clear(ui, state); |
513 | } |
514 | } |
515 | |
516 | static int sg_emptycol(game_state *ret, int x) |
517 | { |
518 | int y; |
519 | for (y = 0; y < ret->params.h; y++) { |
520 | if (COL(ret,x,y)) return 0; |
521 | } |
522 | return 1; |
523 | } |
524 | |
525 | |
526 | static void sg_snuggle(game_state *ret) |
527 | { |
528 | int x,y, ndone; |
529 | |
530 | /* make all unsupported tiles fall down. */ |
531 | do { |
532 | ndone = 0; |
533 | for (x = 0; x < ret->params.w; x++) { |
534 | for (y = ret->params.h-1; y > 0; y--) { |
535 | if (COL(ret,x,y) != 0) continue; |
536 | if (COL(ret,x,y-1) != 0) { |
537 | SWAPTILE(ret,x,y,x,y-1); |
538 | ndone++; |
539 | } |
540 | } |
541 | } |
542 | } while (ndone); |
543 | |
544 | /* shuffle all columns as far left as they can go. */ |
545 | do { |
546 | ndone = 0; |
547 | for (x = 0; x < ret->params.w-1; x++) { |
548 | if (sg_emptycol(ret,x) && !sg_emptycol(ret,x+1)) { |
6bbab0fe |
549 | ndone++; |
550 | for (y = 0; y < ret->params.h; y++) { |
551 | SWAPTILE(ret,x,y,x+1,y); |
552 | } |
553 | } |
554 | } |
555 | } while (ndone); |
556 | } |
557 | |
558 | static void sg_check(game_state *ret) |
559 | { |
560 | int x,y, complete = 1, impossible = 1; |
561 | |
562 | for (x = 0; x < ret->params.w; x++) { |
563 | for (y = 0; y < ret->params.h; y++) { |
564 | if (COL(ret,x,y) == 0) |
565 | continue; |
566 | complete = 0; |
567 | if (x+1 < ret->params.w) { |
568 | if (COL(ret,x,y) == COL(ret,x+1,y)) |
569 | impossible = 0; |
570 | } |
571 | if (y+1 < ret->params.h) { |
572 | if (COL(ret,x,y) == COL(ret,x,y+1)) |
573 | impossible = 0; |
574 | } |
575 | } |
576 | } |
577 | ret->complete = complete; |
578 | ret->impossible = impossible; |
579 | } |
580 | |
581 | struct game_drawstate { |
582 | int started, bgcolour; |
583 | int tileinner, tilegap; |
584 | int *tiles; /* contains colour and SELECTED. */ |
585 | }; |
586 | |
df11cd4e |
587 | static game_state *execute_move(game_state *from, char *move); |
588 | |
589 | static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds, |
590 | int x, int y, int button) |
6bbab0fe |
591 | { |
592 | int tx, ty; |
df11cd4e |
593 | char *ret = ""; |
6bbab0fe |
594 | |
f1359c5e |
595 | ui->displaysel = 0; |
596 | |
597 | if (button == RIGHT_BUTTON || button == LEFT_BUTTON) { |
598 | tx = FROMCOORD(x); ty= FROMCOORD(y); |
599 | } else if (button == CURSOR_UP || button == CURSOR_DOWN || |
600 | button == CURSOR_LEFT || button == CURSOR_RIGHT) { |
601 | int dx = 0, dy = 0; |
602 | ui->displaysel = 1; |
603 | dx = (button == CURSOR_LEFT) ? -1 : ((button == CURSOR_RIGHT) ? +1 : 0); |
604 | dy = (button == CURSOR_DOWN) ? +1 : ((button == CURSOR_UP) ? -1 : 0); |
df11cd4e |
605 | ui->xsel = (ui->xsel + state->params.w + dx) % state->params.w; |
606 | ui->ysel = (ui->ysel + state->params.h + dy) % state->params.h; |
f1359c5e |
607 | return ret; |
608 | } else if (button == CURSOR_SELECT || button == ' ' || button == '\r' || |
609 | button == '\n') { |
610 | ui->displaysel = 1; |
611 | tx = ui->xsel; |
612 | ty = ui->ysel; |
f1359c5e |
613 | } else |
6bbab0fe |
614 | return NULL; |
615 | |
df11cd4e |
616 | if (tx < 0 || tx >= state->params.w || ty < 0 || ty >= state->params.h) |
6bbab0fe |
617 | return NULL; |
df11cd4e |
618 | if (COL(state, tx, ty) == 0) return NULL; |
6bbab0fe |
619 | |
620 | if (ISSEL(ui,tx,ty)) { |
621 | if (button == RIGHT_BUTTON) |
df11cd4e |
622 | sel_clear(ui, state); |
6bbab0fe |
623 | else { |
df11cd4e |
624 | game_state *tmp; |
625 | |
626 | ret = sel_movedesc(ui, state); |
627 | |
628 | /* |
629 | * Unfortunately, we must check for completeness or |
630 | * impossibility now, in order to update the game_ui; |
631 | * and we can't do that without constructing the new |
632 | * grid. Sigh. |
633 | */ |
634 | tmp = execute_move(state, ret); |
635 | if (tmp->complete || tmp->impossible) |
636 | ui->displaysel = 0; |
637 | free_game(tmp); |
6bbab0fe |
638 | } |
639 | } else { |
df11cd4e |
640 | sel_clear(ui, state); /* might be no-op */ |
641 | sel_expand(ui, state, tx, ty); |
6bbab0fe |
642 | } |
643 | |
644 | return ret; |
645 | } |
646 | |
df11cd4e |
647 | static game_state *execute_move(game_state *from, char *move) |
648 | { |
649 | int i, n; |
650 | game_state *ret; |
651 | |
652 | if (move[0] == 'M') { |
653 | ret = dup_game(from); |
654 | |
655 | n = 0; |
656 | move++; |
657 | |
658 | while (*move) { |
659 | i = atoi(move); |
660 | if (i < 0 || i >= ret->n) { |
661 | free_game(ret); |
662 | return NULL; |
663 | } |
664 | n++; |
665 | ret->tiles[i] = 0; |
666 | |
667 | while (*move && isdigit((unsigned char)*move)) move++; |
668 | if (*move == ',') move++; |
669 | } |
670 | |
671 | ret->score += npoints(&ret->params, n); |
672 | |
673 | sg_snuggle(ret); /* shifts blanks down and to the left */ |
674 | sg_check(ret); /* checks for completeness or impossibility */ |
675 | |
676 | return ret; |
677 | } else |
678 | return NULL; /* couldn't parse move string */ |
679 | } |
680 | |
6bbab0fe |
681 | /* ---------------------------------------------------------------------- |
682 | * Drawing routines. |
683 | */ |
684 | |
685 | static void game_size(game_params *params, game_drawstate *ds, int *x, int *y, |
686 | int expand) |
687 | { |
688 | int tsx, tsy, ts; |
689 | |
690 | /* |
691 | * We could choose the tile gap dynamically as well if we |
692 | * wanted to; for example, at low tile sizes it might be |
693 | * sensible to leave it out completely. However, for the moment |
694 | * and for the sake of simplicity I'm just going to fix it at |
695 | * 2. |
696 | */ |
697 | ds->tilegap = 2; |
698 | |
699 | /* |
700 | * Each window dimension equals the tile size (inner plus gap) |
701 | * times the grid dimension, plus another tile size (border is |
702 | * half the width of a tile), minus one tile gap. |
703 | * |
704 | * We must cast to unsigned before adding to *x and *y, since |
705 | * they might be INT_MAX! |
706 | */ |
707 | tsx = (unsigned)(*x + ds->tilegap) / (params->w + 1); |
708 | tsy = (unsigned)(*y + ds->tilegap) / (params->h + 1); |
709 | |
710 | ts = min(tsx, tsy); |
711 | if (expand) |
712 | ds->tileinner = ts - ds->tilegap; |
713 | else |
714 | ds->tileinner = min(ts, PREFERRED_TILE_SIZE) - ds->tilegap; |
715 | |
716 | *x = TILE_SIZE * params->w + 2 * BORDER - TILE_GAP; |
717 | *y = TILE_SIZE * params->h + 2 * BORDER - TILE_GAP; |
718 | } |
719 | |
720 | static float *game_colours(frontend *fe, game_state *state, int *ncolours) |
721 | { |
722 | float *ret = snewn(3 * NCOLOURS, float); |
723 | |
724 | frontend_default_colour(fe, &ret[COL_BACKGROUND * 3]); |
725 | |
726 | ret[COL_1 * 3 + 0] = 0.0F; |
727 | ret[COL_1 * 3 + 1] = 0.0F; |
728 | ret[COL_1 * 3 + 2] = 1.0F; |
729 | |
730 | ret[COL_2 * 3 + 0] = 0.0F; |
731 | ret[COL_2 * 3 + 1] = 0.5F; |
732 | ret[COL_2 * 3 + 2] = 0.0F; |
733 | |
734 | ret[COL_3 * 3 + 0] = 1.0F; |
735 | ret[COL_3 * 3 + 1] = 0.0F; |
736 | ret[COL_3 * 3 + 2] = 0.0F; |
737 | |
367cfc41 |
738 | ret[COL_4 * 3 + 0] = 1.0F; |
739 | ret[COL_4 * 3 + 1] = 1.0F; |
740 | ret[COL_4 * 3 + 2] = 0.0F; |
6bbab0fe |
741 | |
367cfc41 |
742 | ret[COL_5 * 3 + 0] = 1.0F; |
743 | ret[COL_5 * 3 + 1] = 0.0F; |
744 | ret[COL_5 * 3 + 2] = 1.0F; |
6bbab0fe |
745 | |
367cfc41 |
746 | ret[COL_6 * 3 + 0] = 0.0F; |
747 | ret[COL_6 * 3 + 1] = 1.0F; |
748 | ret[COL_6 * 3 + 2] = 1.0F; |
6bbab0fe |
749 | |
367cfc41 |
750 | ret[COL_7 * 3 + 0] = 0.5F; |
751 | ret[COL_7 * 3 + 1] = 0.5F; |
752 | ret[COL_7 * 3 + 2] = 1.0F; |
6bbab0fe |
753 | |
367cfc41 |
754 | ret[COL_8 * 3 + 0] = 0.5F; |
755 | ret[COL_8 * 3 + 1] = 1.0F; |
756 | ret[COL_8 * 3 + 2] = 0.5F; |
6bbab0fe |
757 | |
367cfc41 |
758 | ret[COL_9 * 3 + 0] = 1.0F; |
759 | ret[COL_9 * 3 + 1] = 0.5F; |
760 | ret[COL_9 * 3 + 2] = 0.5F; |
6bbab0fe |
761 | |
762 | ret[COL_IMPOSSIBLE * 3 + 0] = 0.0F; |
763 | ret[COL_IMPOSSIBLE * 3 + 1] = 0.0F; |
764 | ret[COL_IMPOSSIBLE * 3 + 2] = 0.0F; |
765 | |
766 | ret[COL_SEL * 3 + 0] = 1.0F; |
767 | ret[COL_SEL * 3 + 1] = 1.0F; |
768 | ret[COL_SEL * 3 + 2] = 1.0F; |
769 | |
770 | ret[COL_HIGHLIGHT * 3 + 0] = 1.0F; |
771 | ret[COL_HIGHLIGHT * 3 + 1] = 1.0F; |
772 | ret[COL_HIGHLIGHT * 3 + 2] = 1.0F; |
773 | |
774 | ret[COL_LOWLIGHT * 3 + 0] = ret[COL_BACKGROUND * 3 + 0] * 2.0 / 3.0; |
775 | ret[COL_LOWLIGHT * 3 + 1] = ret[COL_BACKGROUND * 3 + 1] * 2.0 / 3.0; |
776 | ret[COL_LOWLIGHT * 3 + 2] = ret[COL_BACKGROUND * 3 + 2] * 2.0 / 3.0; |
777 | |
778 | *ncolours = NCOLOURS; |
779 | return ret; |
780 | } |
781 | |
782 | static game_drawstate *game_new_drawstate(game_state *state) |
783 | { |
784 | struct game_drawstate *ds = snew(struct game_drawstate); |
785 | int i; |
786 | |
787 | ds->started = 0; |
788 | ds->tileinner = ds->tilegap = 0; /* not decided yet */ |
789 | ds->tiles = snewn(state->n, int); |
790 | for (i = 0; i < state->n; i++) |
791 | ds->tiles[i] = -1; |
792 | |
793 | return ds; |
794 | } |
795 | |
796 | static void game_free_drawstate(game_drawstate *ds) |
797 | { |
798 | sfree(ds->tiles); |
799 | sfree(ds); |
800 | } |
801 | |
802 | /* Drawing routing for the tile at (x,y) is responsible for drawing |
803 | * itself and the gaps to its right and below. If we're the same colour |
804 | * as the tile to our right, then we fill in the gap; ditto below, and if |
805 | * both then we fill the teeny tiny square in the corner as well. |
806 | */ |
807 | |
808 | static void tile_redraw(frontend *fe, game_drawstate *ds, |
809 | int x, int y, int dright, int dbelow, |
d951510d |
810 | int tile, int bgcolour) |
6bbab0fe |
811 | { |
812 | int outer = bgcolour, inner = outer, col = tile & TILE_COLMASK; |
813 | |
814 | if (col) { |
d951510d |
815 | if (tile & TILE_IMPOSSIBLE) { |
6bbab0fe |
816 | outer = col; |
817 | inner = COL_IMPOSSIBLE; |
818 | } else if (tile & TILE_SELECTED) { |
819 | outer = COL_SEL; |
820 | inner = col; |
821 | } else { |
822 | outer = inner = col; |
823 | } |
824 | } |
825 | draw_rect(fe, COORD(x), COORD(y), TILE_INNER, TILE_INNER, outer); |
826 | draw_rect(fe, COORD(x)+TILE_INNER/4, COORD(y)+TILE_INNER/4, |
827 | TILE_INNER/2, TILE_INNER/2, inner); |
828 | |
829 | if (dright) |
830 | draw_rect(fe, COORD(x)+TILE_INNER, COORD(y), TILE_GAP, TILE_INNER, |
831 | (tile & TILE_JOINRIGHT) ? outer : bgcolour); |
832 | if (dbelow) |
833 | draw_rect(fe, COORD(x), COORD(y)+TILE_INNER, TILE_INNER, TILE_GAP, |
834 | (tile & TILE_JOINDOWN) ? outer : bgcolour); |
835 | if (dright && dbelow) |
836 | draw_rect(fe, COORD(x)+TILE_INNER, COORD(y)+TILE_INNER, TILE_GAP, TILE_GAP, |
837 | (tile & TILE_JOINDIAG) ? outer : bgcolour); |
838 | |
f1359c5e |
839 | if (tile & TILE_HASSEL) { |
840 | int sx = COORD(x)+2, sy = COORD(y)+2, ssz = TILE_INNER-5; |
841 | int scol = (outer == COL_SEL) ? COL_LOWLIGHT : COL_HIGHLIGHT; |
842 | draw_line(fe, sx, sy, sx+ssz, sy, scol); |
843 | draw_line(fe, sx+ssz, sy, sx+ssz, sy+ssz, scol); |
844 | draw_line(fe, sx+ssz, sy+ssz, sx, sy+ssz, scol); |
845 | draw_line(fe, sx, sy+ssz, sx, sy, scol); |
846 | } |
847 | |
6bbab0fe |
848 | draw_update(fe, COORD(x), COORD(y), TILE_SIZE, TILE_SIZE); |
849 | } |
850 | |
851 | static void game_redraw(frontend *fe, game_drawstate *ds, game_state *oldstate, |
852 | game_state *state, int dir, game_ui *ui, |
853 | float animtime, float flashtime) |
854 | { |
855 | int bgcolour, x, y; |
856 | |
6bbab0fe |
857 | /* This was entirely cloned from fifteen.c; it should probably be |
858 | * moved into some generic 'draw-recessed-rectangle' utility fn. */ |
859 | if (!ds->started) { |
860 | int coords[10]; |
861 | |
862 | draw_rect(fe, 0, 0, |
863 | TILE_SIZE * state->params.w + 2 * BORDER, |
864 | TILE_SIZE * state->params.h + 2 * BORDER, COL_BACKGROUND); |
865 | draw_update(fe, 0, 0, |
866 | TILE_SIZE * state->params.w + 2 * BORDER, |
867 | TILE_SIZE * state->params.h + 2 * BORDER); |
868 | |
869 | /* |
870 | * Recessed area containing the whole puzzle. |
871 | */ |
872 | coords[0] = COORD(state->params.w) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
873 | coords[1] = COORD(state->params.h) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
874 | coords[2] = COORD(state->params.w) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
875 | coords[3] = COORD(0) - HIGHLIGHT_WIDTH; |
876 | coords[4] = coords[2] - TILE_SIZE; |
877 | coords[5] = coords[3] + TILE_SIZE; |
878 | coords[8] = COORD(0) - HIGHLIGHT_WIDTH; |
879 | coords[9] = COORD(state->params.h) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
880 | coords[6] = coords[8] + TILE_SIZE; |
881 | coords[7] = coords[9] - TILE_SIZE; |
882 | draw_polygon(fe, coords, 5, TRUE, COL_HIGHLIGHT); |
883 | draw_polygon(fe, coords, 5, FALSE, COL_HIGHLIGHT); |
884 | |
885 | coords[1] = COORD(0) - HIGHLIGHT_WIDTH; |
886 | coords[0] = COORD(0) - HIGHLIGHT_WIDTH; |
887 | draw_polygon(fe, coords, 5, TRUE, COL_LOWLIGHT); |
888 | draw_polygon(fe, coords, 5, FALSE, COL_LOWLIGHT); |
889 | |
890 | ds->started = 1; |
891 | } |
892 | |
893 | if (flashtime > 0.0) { |
894 | int frame = (int)(flashtime / FLASH_FRAME); |
895 | bgcolour = (frame % 2 ? COL_LOWLIGHT : COL_HIGHLIGHT); |
896 | } else |
897 | bgcolour = COL_BACKGROUND; |
898 | |
899 | for (x = 0; x < state->params.w; x++) { |
900 | for (y = 0; y < state->params.h; y++) { |
901 | int i = (state->params.w * y) + x; |
902 | int col = COL(state,x,y), tile = col; |
903 | int dright = (x+1 < state->params.w); |
904 | int dbelow = (y+1 < state->params.h); |
905 | |
906 | tile |= ISSEL(ui,x,y); |
d951510d |
907 | if (state->impossible) |
908 | tile |= TILE_IMPOSSIBLE; |
6bbab0fe |
909 | if (dright && COL(state,x+1,y) == col) |
910 | tile |= TILE_JOINRIGHT; |
911 | if (dbelow && COL(state,x,y+1) == col) |
912 | tile |= TILE_JOINDOWN; |
913 | if ((tile & TILE_JOINRIGHT) && (tile & TILE_JOINDOWN) && |
914 | COL(state,x+1,y+1) == col) |
915 | tile |= TILE_JOINDIAG; |
916 | |
f1359c5e |
917 | if (ui->displaysel && ui->xsel == x && ui->ysel == y) |
918 | tile |= TILE_HASSEL; |
919 | |
6bbab0fe |
920 | /* For now we're never expecting oldstate at all (because we have |
921 | * no animation); when we do we might well want to be looking |
922 | * at the tile colours from oldstate, not state. */ |
923 | if ((oldstate && COL(oldstate,x,y) != col) || |
924 | (flashtime > 0.0) || |
925 | (ds->bgcolour != bgcolour) || |
926 | (tile != ds->tiles[i])) { |
d951510d |
927 | tile_redraw(fe, ds, x, y, dright, dbelow, tile, bgcolour); |
6bbab0fe |
928 | ds->tiles[i] = tile; |
929 | } |
930 | } |
931 | } |
932 | ds->bgcolour = bgcolour; |
933 | |
934 | { |
935 | char status[255], score[80]; |
936 | |
937 | sprintf(score, "Score: %d", state->score); |
938 | |
939 | if (state->complete) |
940 | sprintf(status, "COMPLETE! %s", score); |
941 | else if (state->impossible) |
942 | sprintf(status, "Cannot move! %s", score); |
943 | else if (ui->nselected) |
944 | sprintf(status, "%s Selected: %d (%d)", |
945 | score, ui->nselected, npoints(&state->params, ui->nselected)); |
946 | else |
947 | sprintf(status, "%s", score); |
948 | status_bar(fe, status); |
949 | } |
950 | } |
951 | |
952 | static float game_anim_length(game_state *oldstate, game_state *newstate, |
953 | int dir, game_ui *ui) |
954 | { |
955 | return 0.0F; |
956 | } |
957 | |
958 | static float game_flash_length(game_state *oldstate, game_state *newstate, |
959 | int dir, game_ui *ui) |
960 | { |
961 | if ((!oldstate->complete && newstate->complete) || |
962 | (!oldstate->impossible && newstate->impossible)) |
963 | return 2 * FLASH_FRAME; |
964 | else |
965 | return 0.0F; |
966 | } |
967 | |
968 | static int game_wants_statusbar(void) |
969 | { |
970 | return TRUE; |
971 | } |
972 | |
973 | static int game_timing_state(game_state *state) |
974 | { |
975 | return TRUE; |
976 | } |
977 | |
978 | #ifdef COMBINED |
979 | #define thegame samegame |
980 | #endif |
981 | |
982 | const struct game thegame = { |
f3cc3e50 |
983 | "Same Game", "games.samegame", |
6bbab0fe |
984 | default_params, |
985 | game_fetch_preset, |
986 | decode_params, |
987 | encode_params, |
988 | free_params, |
989 | dup_params, |
990 | TRUE, game_configure, custom_params, |
991 | validate_params, |
992 | new_game_desc, |
993 | game_free_aux_info, |
994 | validate_desc, |
995 | new_game, |
996 | dup_game, |
997 | free_game, |
998 | FALSE, solve_game, |
999 | TRUE, game_text_format, |
1000 | new_ui, |
1001 | free_ui, |
1002 | game_changed_state, |
df11cd4e |
1003 | interpret_move, |
1004 | execute_move, |
6bbab0fe |
1005 | game_size, |
1006 | game_colours, |
1007 | game_new_drawstate, |
1008 | game_free_drawstate, |
1009 | game_redraw, |
1010 | game_anim_length, |
1011 | game_flash_length, |
1012 | game_wants_statusbar, |
1013 | FALSE, game_timing_state, |
1014 | 0, /* mouse_priorities */ |
1015 | }; |