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 | |
3ff276f2 |
212 | static char *validate_params(game_params *params, int full) |
6bbab0fe |
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, |
c566778e |
243 | char **aux, int interactive) |
6bbab0fe |
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 | |
6bbab0fe |
285 | static char *validate_desc(game_params *params, char *desc) |
286 | { |
287 | int area = params->w * params->h, i; |
288 | char *p = desc; |
289 | |
290 | for (i = 0; i < area; i++) { |
291 | char *q = p; |
292 | int n; |
293 | |
294 | if (!isdigit(*p)) |
295 | return "Not enough numbers in string"; |
296 | while (isdigit(*p)) p++; |
297 | |
298 | if (i < area-1 && *p != ',') |
299 | return "Expected comma after number"; |
300 | else if (i == area-1 && *p) |
301 | return "Excess junk at end of string"; |
302 | |
303 | n = atoi(q); |
304 | if (n < 0 || n > params->ncols) |
305 | return "Colour out of range"; |
306 | |
307 | if (*p) p++; /* eat comma */ |
308 | } |
309 | return NULL; |
310 | } |
311 | |
312 | static game_state *new_game(midend_data *me, game_params *params, char *desc) |
313 | { |
314 | game_state *state = snew(game_state); |
315 | char *p = desc; |
316 | int i; |
317 | |
318 | state->params = *params; /* struct copy */ |
319 | state->n = state->params.w * state->params.h; |
320 | state->tiles = snewn(state->n, int); |
321 | |
322 | for (i = 0; i < state->n; i++) { |
323 | assert(*p); |
324 | state->tiles[i] = atoi(p); |
325 | while (*p && *p != ',') |
326 | p++; |
327 | if (*p) p++; /* eat comma */ |
328 | } |
329 | state->complete = state->impossible = 0; |
330 | state->score = 0; |
331 | |
332 | return state; |
333 | } |
334 | |
335 | static game_state *dup_game(game_state *state) |
336 | { |
337 | game_state *ret = snew(game_state); |
338 | |
339 | *ret = *state; /* structure copy, except... */ |
340 | |
341 | ret->tiles = snewn(state->n, int); |
342 | memcpy(ret->tiles, state->tiles, state->n * sizeof(int)); |
343 | |
344 | return ret; |
345 | } |
346 | |
347 | static void free_game(game_state *state) |
348 | { |
349 | sfree(state->tiles); |
350 | sfree(state); |
351 | } |
352 | |
df11cd4e |
353 | static char *solve_game(game_state *state, game_state *currstate, |
c566778e |
354 | char *aux, char **error) |
6bbab0fe |
355 | { |
356 | return NULL; |
357 | } |
358 | |
359 | static char *game_text_format(game_state *state) |
360 | { |
361 | char *ret, *p; |
362 | int x, y, maxlen; |
363 | |
364 | maxlen = state->params.h * (state->params.w + 1); |
365 | ret = snewn(maxlen+1, char); |
366 | p = ret; |
367 | |
368 | for (y = 0; y < state->params.h; y++) { |
369 | for (x = 0; x < state->params.w; x++) { |
370 | int t = TILE(state,x,y); |
371 | if (t <= 0) *p++ = ' '; |
372 | else if (t < 10) *p++ = '0'+t; |
373 | else *p++ = 'a'+(t-10); |
374 | } |
375 | *p++ = '\n'; |
376 | } |
377 | assert(p - ret == maxlen); |
378 | *p = '\0'; |
379 | return ret; |
380 | } |
381 | |
382 | struct game_ui { |
383 | struct game_params params; |
384 | int *tiles; /* selected-ness only */ |
385 | int nselected; |
f1359c5e |
386 | int xsel, ysel, displaysel; |
6bbab0fe |
387 | }; |
388 | |
389 | static game_ui *new_ui(game_state *state) |
390 | { |
391 | game_ui *ui = snew(game_ui); |
392 | |
393 | ui->params = state->params; /* structure copy */ |
394 | ui->tiles = snewn(state->n, int); |
395 | memset(ui->tiles, 0, state->n*sizeof(int)); |
396 | ui->nselected = 0; |
397 | |
f1359c5e |
398 | ui->xsel = ui->ysel = ui->displaysel = 0; |
399 | |
6bbab0fe |
400 | return ui; |
401 | } |
402 | |
403 | static void free_ui(game_ui *ui) |
404 | { |
405 | sfree(ui->tiles); |
406 | sfree(ui); |
407 | } |
408 | |
844f605f |
409 | static char *encode_ui(game_ui *ui) |
ae8290c6 |
410 | { |
411 | return NULL; |
412 | } |
413 | |
844f605f |
414 | static void decode_ui(game_ui *ui, char *encoding) |
ae8290c6 |
415 | { |
416 | } |
417 | |
6bbab0fe |
418 | static void sel_clear(game_ui *ui, game_state *state) |
419 | { |
420 | int i; |
421 | |
422 | for (i = 0; i < state->n; i++) |
423 | ui->tiles[i] &= ~TILE_SELECTED; |
424 | ui->nselected = 0; |
6bbab0fe |
425 | } |
426 | |
427 | |
428 | static void game_changed_state(game_ui *ui, game_state *oldstate, |
429 | game_state *newstate) |
430 | { |
431 | sel_clear(ui, newstate); |
faff1e07 |
432 | |
433 | /* |
434 | * If the game state has just changed into an unplayable one |
435 | * (either completed or impossible), we vanish the keyboard- |
436 | * control cursor. |
437 | */ |
438 | if (newstate->complete || newstate->impossible) |
439 | ui->displaysel = 0; |
6bbab0fe |
440 | } |
441 | |
df11cd4e |
442 | static char *sel_movedesc(game_ui *ui, game_state *state) |
6bbab0fe |
443 | { |
df11cd4e |
444 | int i; |
445 | char *ret, *sep, buf[80]; |
446 | int retlen, retsize; |
6bbab0fe |
447 | |
df11cd4e |
448 | retsize = 256; |
449 | ret = snewn(retsize, char); |
450 | retlen = 0; |
451 | ret[retlen++] = 'M'; |
452 | sep = ""; |
6bbab0fe |
453 | |
454 | for (i = 0; i < state->n; i++) { |
455 | if (ui->tiles[i] & TILE_SELECTED) { |
df11cd4e |
456 | sprintf(buf, "%s%d", sep, i); |
457 | sep = ","; |
458 | if (retlen + strlen(buf) >= retsize) { |
459 | retsize = retlen + strlen(buf) + 256; |
460 | ret = sresize(ret, retsize, char); |
461 | } |
462 | strcpy(ret + retlen, buf); |
463 | retlen += strlen(buf); |
464 | |
6bbab0fe |
465 | ui->tiles[i] &= ~TILE_SELECTED; |
466 | } |
467 | } |
468 | ui->nselected = 0; |
df11cd4e |
469 | |
470 | assert(retlen < retsize); |
471 | ret[retlen++] = '\0'; |
472 | return sresize(ret, retlen, char); |
6bbab0fe |
473 | } |
474 | |
475 | static void sel_expand(game_ui *ui, game_state *state, int tx, int ty) |
476 | { |
477 | int ns = 1, nadded, x, y, c; |
478 | |
479 | TILE(ui,tx,ty) |= TILE_SELECTED; |
6bbab0fe |
480 | do { |
481 | nadded = 0; |
482 | |
483 | for (x = 0; x < state->params.w; x++) { |
484 | for (y = 0; y < state->params.h; y++) { |
485 | if (x == tx && y == ty) continue; |
486 | if (ISSEL(ui,x,y)) continue; |
487 | |
488 | c = COL(state,x,y); |
489 | if ((x > 0) && |
490 | ISSEL(ui,x-1,y) && COL(state,x-1,y) == c) { |
491 | TILE(ui,x,y) |= TILE_SELECTED; |
492 | nadded++; |
493 | continue; |
494 | } |
495 | |
496 | if ((x+1 < state->params.w) && |
497 | ISSEL(ui,x+1,y) && COL(state,x+1,y) == c) { |
498 | TILE(ui,x,y) |= TILE_SELECTED; |
499 | nadded++; |
500 | continue; |
501 | } |
502 | |
503 | if ((y > 0) && |
504 | ISSEL(ui,x,y-1) && COL(state,x,y-1) == c) { |
505 | TILE(ui,x,y) |= TILE_SELECTED; |
506 | nadded++; |
507 | continue; |
508 | } |
509 | |
510 | if ((y+1 < state->params.h) && |
511 | ISSEL(ui,x,y+1) && COL(state,x,y+1) == c) { |
512 | TILE(ui,x,y) |= TILE_SELECTED; |
513 | nadded++; |
514 | continue; |
515 | } |
516 | } |
517 | } |
518 | ns += nadded; |
6bbab0fe |
519 | } while (nadded > 0); |
520 | |
521 | if (ns > 1) { |
522 | ui->nselected = ns; |
523 | } else { |
524 | sel_clear(ui, state); |
525 | } |
526 | } |
527 | |
528 | static int sg_emptycol(game_state *ret, int x) |
529 | { |
530 | int y; |
531 | for (y = 0; y < ret->params.h; y++) { |
532 | if (COL(ret,x,y)) return 0; |
533 | } |
534 | return 1; |
535 | } |
536 | |
537 | |
538 | static void sg_snuggle(game_state *ret) |
539 | { |
540 | int x,y, ndone; |
541 | |
542 | /* make all unsupported tiles fall down. */ |
543 | do { |
544 | ndone = 0; |
545 | for (x = 0; x < ret->params.w; x++) { |
546 | for (y = ret->params.h-1; y > 0; y--) { |
547 | if (COL(ret,x,y) != 0) continue; |
548 | if (COL(ret,x,y-1) != 0) { |
549 | SWAPTILE(ret,x,y,x,y-1); |
550 | ndone++; |
551 | } |
552 | } |
553 | } |
554 | } while (ndone); |
555 | |
556 | /* shuffle all columns as far left as they can go. */ |
557 | do { |
558 | ndone = 0; |
559 | for (x = 0; x < ret->params.w-1; x++) { |
560 | if (sg_emptycol(ret,x) && !sg_emptycol(ret,x+1)) { |
6bbab0fe |
561 | ndone++; |
562 | for (y = 0; y < ret->params.h; y++) { |
563 | SWAPTILE(ret,x,y,x+1,y); |
564 | } |
565 | } |
566 | } |
567 | } while (ndone); |
568 | } |
569 | |
570 | static void sg_check(game_state *ret) |
571 | { |
572 | int x,y, complete = 1, impossible = 1; |
573 | |
574 | for (x = 0; x < ret->params.w; x++) { |
575 | for (y = 0; y < ret->params.h; y++) { |
576 | if (COL(ret,x,y) == 0) |
577 | continue; |
578 | complete = 0; |
579 | if (x+1 < ret->params.w) { |
580 | if (COL(ret,x,y) == COL(ret,x+1,y)) |
581 | impossible = 0; |
582 | } |
583 | if (y+1 < ret->params.h) { |
584 | if (COL(ret,x,y) == COL(ret,x,y+1)) |
585 | impossible = 0; |
586 | } |
587 | } |
588 | } |
589 | ret->complete = complete; |
590 | ret->impossible = impossible; |
591 | } |
592 | |
593 | struct game_drawstate { |
594 | int started, bgcolour; |
595 | int tileinner, tilegap; |
596 | int *tiles; /* contains colour and SELECTED. */ |
597 | }; |
598 | |
df11cd4e |
599 | static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds, |
600 | int x, int y, int button) |
6bbab0fe |
601 | { |
602 | int tx, ty; |
df11cd4e |
603 | char *ret = ""; |
6bbab0fe |
604 | |
f1359c5e |
605 | ui->displaysel = 0; |
606 | |
607 | if (button == RIGHT_BUTTON || button == LEFT_BUTTON) { |
608 | tx = FROMCOORD(x); ty= FROMCOORD(y); |
609 | } else if (button == CURSOR_UP || button == CURSOR_DOWN || |
610 | button == CURSOR_LEFT || button == CURSOR_RIGHT) { |
611 | int dx = 0, dy = 0; |
612 | ui->displaysel = 1; |
613 | dx = (button == CURSOR_LEFT) ? -1 : ((button == CURSOR_RIGHT) ? +1 : 0); |
614 | dy = (button == CURSOR_DOWN) ? +1 : ((button == CURSOR_UP) ? -1 : 0); |
df11cd4e |
615 | ui->xsel = (ui->xsel + state->params.w + dx) % state->params.w; |
616 | ui->ysel = (ui->ysel + state->params.h + dy) % state->params.h; |
f1359c5e |
617 | return ret; |
618 | } else if (button == CURSOR_SELECT || button == ' ' || button == '\r' || |
619 | button == '\n') { |
620 | ui->displaysel = 1; |
621 | tx = ui->xsel; |
622 | ty = ui->ysel; |
f1359c5e |
623 | } else |
6bbab0fe |
624 | return NULL; |
625 | |
df11cd4e |
626 | if (tx < 0 || tx >= state->params.w || ty < 0 || ty >= state->params.h) |
6bbab0fe |
627 | return NULL; |
df11cd4e |
628 | if (COL(state, tx, ty) == 0) return NULL; |
6bbab0fe |
629 | |
630 | if (ISSEL(ui,tx,ty)) { |
631 | if (button == RIGHT_BUTTON) |
df11cd4e |
632 | sel_clear(ui, state); |
faff1e07 |
633 | else |
df11cd4e |
634 | ret = sel_movedesc(ui, state); |
6bbab0fe |
635 | } else { |
df11cd4e |
636 | sel_clear(ui, state); /* might be no-op */ |
637 | sel_expand(ui, state, tx, ty); |
6bbab0fe |
638 | } |
639 | |
640 | return ret; |
641 | } |
642 | |
df11cd4e |
643 | static game_state *execute_move(game_state *from, char *move) |
644 | { |
645 | int i, n; |
646 | game_state *ret; |
647 | |
648 | if (move[0] == 'M') { |
649 | ret = dup_game(from); |
650 | |
651 | n = 0; |
652 | move++; |
653 | |
654 | while (*move) { |
655 | i = atoi(move); |
656 | if (i < 0 || i >= ret->n) { |
657 | free_game(ret); |
658 | return NULL; |
659 | } |
660 | n++; |
661 | ret->tiles[i] = 0; |
662 | |
663 | while (*move && isdigit((unsigned char)*move)) move++; |
664 | if (*move == ',') move++; |
665 | } |
666 | |
667 | ret->score += npoints(&ret->params, n); |
668 | |
669 | sg_snuggle(ret); /* shifts blanks down and to the left */ |
670 | sg_check(ret); /* checks for completeness or impossibility */ |
671 | |
672 | return ret; |
673 | } else |
674 | return NULL; /* couldn't parse move string */ |
675 | } |
676 | |
6bbab0fe |
677 | /* ---------------------------------------------------------------------- |
678 | * Drawing routines. |
679 | */ |
680 | |
1f3ee4ee |
681 | static void game_set_size(game_drawstate *ds, game_params *params, |
682 | int tilesize) |
683 | { |
6bbab0fe |
684 | ds->tilegap = 2; |
1f3ee4ee |
685 | ds->tileinner = tilesize - ds->tilegap; |
686 | } |
6bbab0fe |
687 | |
1f3ee4ee |
688 | static void game_compute_size(game_params *params, int tilesize, |
689 | int *x, int *y) |
690 | { |
691 | /* Ick: fake up tile size variables for macro expansion purposes */ |
692 | game_drawstate ads, *ds = &ads; |
693 | game_set_size(ds, params, tilesize); |
6bbab0fe |
694 | |
695 | *x = TILE_SIZE * params->w + 2 * BORDER - TILE_GAP; |
696 | *y = TILE_SIZE * params->h + 2 * BORDER - TILE_GAP; |
697 | } |
698 | |
699 | static float *game_colours(frontend *fe, game_state *state, int *ncolours) |
700 | { |
701 | float *ret = snewn(3 * NCOLOURS, float); |
702 | |
703 | frontend_default_colour(fe, &ret[COL_BACKGROUND * 3]); |
704 | |
705 | ret[COL_1 * 3 + 0] = 0.0F; |
706 | ret[COL_1 * 3 + 1] = 0.0F; |
707 | ret[COL_1 * 3 + 2] = 1.0F; |
708 | |
709 | ret[COL_2 * 3 + 0] = 0.0F; |
710 | ret[COL_2 * 3 + 1] = 0.5F; |
711 | ret[COL_2 * 3 + 2] = 0.0F; |
712 | |
713 | ret[COL_3 * 3 + 0] = 1.0F; |
714 | ret[COL_3 * 3 + 1] = 0.0F; |
715 | ret[COL_3 * 3 + 2] = 0.0F; |
716 | |
367cfc41 |
717 | ret[COL_4 * 3 + 0] = 1.0F; |
718 | ret[COL_4 * 3 + 1] = 1.0F; |
719 | ret[COL_4 * 3 + 2] = 0.0F; |
6bbab0fe |
720 | |
367cfc41 |
721 | ret[COL_5 * 3 + 0] = 1.0F; |
722 | ret[COL_5 * 3 + 1] = 0.0F; |
723 | ret[COL_5 * 3 + 2] = 1.0F; |
6bbab0fe |
724 | |
367cfc41 |
725 | ret[COL_6 * 3 + 0] = 0.0F; |
726 | ret[COL_6 * 3 + 1] = 1.0F; |
727 | ret[COL_6 * 3 + 2] = 1.0F; |
6bbab0fe |
728 | |
367cfc41 |
729 | ret[COL_7 * 3 + 0] = 0.5F; |
730 | ret[COL_7 * 3 + 1] = 0.5F; |
731 | ret[COL_7 * 3 + 2] = 1.0F; |
6bbab0fe |
732 | |
367cfc41 |
733 | ret[COL_8 * 3 + 0] = 0.5F; |
734 | ret[COL_8 * 3 + 1] = 1.0F; |
735 | ret[COL_8 * 3 + 2] = 0.5F; |
6bbab0fe |
736 | |
367cfc41 |
737 | ret[COL_9 * 3 + 0] = 1.0F; |
738 | ret[COL_9 * 3 + 1] = 0.5F; |
739 | ret[COL_9 * 3 + 2] = 0.5F; |
6bbab0fe |
740 | |
741 | ret[COL_IMPOSSIBLE * 3 + 0] = 0.0F; |
742 | ret[COL_IMPOSSIBLE * 3 + 1] = 0.0F; |
743 | ret[COL_IMPOSSIBLE * 3 + 2] = 0.0F; |
744 | |
745 | ret[COL_SEL * 3 + 0] = 1.0F; |
746 | ret[COL_SEL * 3 + 1] = 1.0F; |
747 | ret[COL_SEL * 3 + 2] = 1.0F; |
748 | |
749 | ret[COL_HIGHLIGHT * 3 + 0] = 1.0F; |
750 | ret[COL_HIGHLIGHT * 3 + 1] = 1.0F; |
751 | ret[COL_HIGHLIGHT * 3 + 2] = 1.0F; |
752 | |
753 | ret[COL_LOWLIGHT * 3 + 0] = ret[COL_BACKGROUND * 3 + 0] * 2.0 / 3.0; |
754 | ret[COL_LOWLIGHT * 3 + 1] = ret[COL_BACKGROUND * 3 + 1] * 2.0 / 3.0; |
755 | ret[COL_LOWLIGHT * 3 + 2] = ret[COL_BACKGROUND * 3 + 2] * 2.0 / 3.0; |
756 | |
757 | *ncolours = NCOLOURS; |
758 | return ret; |
759 | } |
760 | |
761 | static game_drawstate *game_new_drawstate(game_state *state) |
762 | { |
763 | struct game_drawstate *ds = snew(struct game_drawstate); |
764 | int i; |
765 | |
766 | ds->started = 0; |
767 | ds->tileinner = ds->tilegap = 0; /* not decided yet */ |
768 | ds->tiles = snewn(state->n, int); |
769 | for (i = 0; i < state->n; i++) |
770 | ds->tiles[i] = -1; |
771 | |
772 | return ds; |
773 | } |
774 | |
775 | static void game_free_drawstate(game_drawstate *ds) |
776 | { |
777 | sfree(ds->tiles); |
778 | sfree(ds); |
779 | } |
780 | |
781 | /* Drawing routing for the tile at (x,y) is responsible for drawing |
782 | * itself and the gaps to its right and below. If we're the same colour |
783 | * as the tile to our right, then we fill in the gap; ditto below, and if |
784 | * both then we fill the teeny tiny square in the corner as well. |
785 | */ |
786 | |
787 | static void tile_redraw(frontend *fe, game_drawstate *ds, |
788 | int x, int y, int dright, int dbelow, |
d951510d |
789 | int tile, int bgcolour) |
6bbab0fe |
790 | { |
791 | int outer = bgcolour, inner = outer, col = tile & TILE_COLMASK; |
792 | |
793 | if (col) { |
d951510d |
794 | if (tile & TILE_IMPOSSIBLE) { |
6bbab0fe |
795 | outer = col; |
796 | inner = COL_IMPOSSIBLE; |
797 | } else if (tile & TILE_SELECTED) { |
798 | outer = COL_SEL; |
799 | inner = col; |
800 | } else { |
801 | outer = inner = col; |
802 | } |
803 | } |
804 | draw_rect(fe, COORD(x), COORD(y), TILE_INNER, TILE_INNER, outer); |
805 | draw_rect(fe, COORD(x)+TILE_INNER/4, COORD(y)+TILE_INNER/4, |
806 | TILE_INNER/2, TILE_INNER/2, inner); |
807 | |
808 | if (dright) |
809 | draw_rect(fe, COORD(x)+TILE_INNER, COORD(y), TILE_GAP, TILE_INNER, |
810 | (tile & TILE_JOINRIGHT) ? outer : bgcolour); |
811 | if (dbelow) |
812 | draw_rect(fe, COORD(x), COORD(y)+TILE_INNER, TILE_INNER, TILE_GAP, |
813 | (tile & TILE_JOINDOWN) ? outer : bgcolour); |
814 | if (dright && dbelow) |
815 | draw_rect(fe, COORD(x)+TILE_INNER, COORD(y)+TILE_INNER, TILE_GAP, TILE_GAP, |
816 | (tile & TILE_JOINDIAG) ? outer : bgcolour); |
817 | |
f1359c5e |
818 | if (tile & TILE_HASSEL) { |
819 | int sx = COORD(x)+2, sy = COORD(y)+2, ssz = TILE_INNER-5; |
820 | int scol = (outer == COL_SEL) ? COL_LOWLIGHT : COL_HIGHLIGHT; |
821 | draw_line(fe, sx, sy, sx+ssz, sy, scol); |
822 | draw_line(fe, sx+ssz, sy, sx+ssz, sy+ssz, scol); |
823 | draw_line(fe, sx+ssz, sy+ssz, sx, sy+ssz, scol); |
824 | draw_line(fe, sx, sy+ssz, sx, sy, scol); |
825 | } |
826 | |
6bbab0fe |
827 | draw_update(fe, COORD(x), COORD(y), TILE_SIZE, TILE_SIZE); |
828 | } |
829 | |
830 | static void game_redraw(frontend *fe, game_drawstate *ds, game_state *oldstate, |
831 | game_state *state, int dir, game_ui *ui, |
832 | float animtime, float flashtime) |
833 | { |
834 | int bgcolour, x, y; |
835 | |
6bbab0fe |
836 | /* This was entirely cloned from fifteen.c; it should probably be |
837 | * moved into some generic 'draw-recessed-rectangle' utility fn. */ |
838 | if (!ds->started) { |
839 | int coords[10]; |
840 | |
841 | draw_rect(fe, 0, 0, |
842 | TILE_SIZE * state->params.w + 2 * BORDER, |
843 | TILE_SIZE * state->params.h + 2 * BORDER, COL_BACKGROUND); |
844 | draw_update(fe, 0, 0, |
845 | TILE_SIZE * state->params.w + 2 * BORDER, |
846 | TILE_SIZE * state->params.h + 2 * BORDER); |
847 | |
848 | /* |
849 | * Recessed area containing the whole puzzle. |
850 | */ |
851 | coords[0] = COORD(state->params.w) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
852 | coords[1] = COORD(state->params.h) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
853 | coords[2] = COORD(state->params.w) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
854 | coords[3] = COORD(0) - HIGHLIGHT_WIDTH; |
855 | coords[4] = coords[2] - TILE_SIZE; |
856 | coords[5] = coords[3] + TILE_SIZE; |
857 | coords[8] = COORD(0) - HIGHLIGHT_WIDTH; |
858 | coords[9] = COORD(state->params.h) + HIGHLIGHT_WIDTH - 1 - TILE_GAP; |
859 | coords[6] = coords[8] + TILE_SIZE; |
860 | coords[7] = coords[9] - TILE_SIZE; |
28b5987d |
861 | draw_polygon(fe, coords, 5, COL_HIGHLIGHT, COL_HIGHLIGHT); |
6bbab0fe |
862 | |
863 | coords[1] = COORD(0) - HIGHLIGHT_WIDTH; |
864 | coords[0] = COORD(0) - HIGHLIGHT_WIDTH; |
28b5987d |
865 | draw_polygon(fe, coords, 5, COL_LOWLIGHT, COL_LOWLIGHT); |
6bbab0fe |
866 | |
867 | ds->started = 1; |
868 | } |
869 | |
870 | if (flashtime > 0.0) { |
871 | int frame = (int)(flashtime / FLASH_FRAME); |
872 | bgcolour = (frame % 2 ? COL_LOWLIGHT : COL_HIGHLIGHT); |
873 | } else |
874 | bgcolour = COL_BACKGROUND; |
875 | |
876 | for (x = 0; x < state->params.w; x++) { |
877 | for (y = 0; y < state->params.h; y++) { |
878 | int i = (state->params.w * y) + x; |
879 | int col = COL(state,x,y), tile = col; |
880 | int dright = (x+1 < state->params.w); |
881 | int dbelow = (y+1 < state->params.h); |
882 | |
883 | tile |= ISSEL(ui,x,y); |
d951510d |
884 | if (state->impossible) |
885 | tile |= TILE_IMPOSSIBLE; |
6bbab0fe |
886 | if (dright && COL(state,x+1,y) == col) |
887 | tile |= TILE_JOINRIGHT; |
888 | if (dbelow && COL(state,x,y+1) == col) |
889 | tile |= TILE_JOINDOWN; |
890 | if ((tile & TILE_JOINRIGHT) && (tile & TILE_JOINDOWN) && |
891 | COL(state,x+1,y+1) == col) |
892 | tile |= TILE_JOINDIAG; |
893 | |
f1359c5e |
894 | if (ui->displaysel && ui->xsel == x && ui->ysel == y) |
895 | tile |= TILE_HASSEL; |
896 | |
6bbab0fe |
897 | /* For now we're never expecting oldstate at all (because we have |
898 | * no animation); when we do we might well want to be looking |
899 | * at the tile colours from oldstate, not state. */ |
900 | if ((oldstate && COL(oldstate,x,y) != col) || |
901 | (flashtime > 0.0) || |
902 | (ds->bgcolour != bgcolour) || |
903 | (tile != ds->tiles[i])) { |
d951510d |
904 | tile_redraw(fe, ds, x, y, dright, dbelow, tile, bgcolour); |
6bbab0fe |
905 | ds->tiles[i] = tile; |
906 | } |
907 | } |
908 | } |
909 | ds->bgcolour = bgcolour; |
910 | |
911 | { |
912 | char status[255], score[80]; |
913 | |
914 | sprintf(score, "Score: %d", state->score); |
915 | |
916 | if (state->complete) |
917 | sprintf(status, "COMPLETE! %s", score); |
918 | else if (state->impossible) |
919 | sprintf(status, "Cannot move! %s", score); |
920 | else if (ui->nselected) |
921 | sprintf(status, "%s Selected: %d (%d)", |
922 | score, ui->nselected, npoints(&state->params, ui->nselected)); |
923 | else |
924 | sprintf(status, "%s", score); |
925 | status_bar(fe, status); |
926 | } |
927 | } |
928 | |
929 | static float game_anim_length(game_state *oldstate, game_state *newstate, |
930 | int dir, game_ui *ui) |
931 | { |
932 | return 0.0F; |
933 | } |
934 | |
935 | static float game_flash_length(game_state *oldstate, game_state *newstate, |
936 | int dir, game_ui *ui) |
937 | { |
938 | if ((!oldstate->complete && newstate->complete) || |
939 | (!oldstate->impossible && newstate->impossible)) |
940 | return 2 * FLASH_FRAME; |
941 | else |
942 | return 0.0F; |
943 | } |
944 | |
945 | static int game_wants_statusbar(void) |
946 | { |
947 | return TRUE; |
948 | } |
949 | |
4d08de49 |
950 | static int game_timing_state(game_state *state, game_ui *ui) |
6bbab0fe |
951 | { |
952 | return TRUE; |
953 | } |
954 | |
955 | #ifdef COMBINED |
956 | #define thegame samegame |
957 | #endif |
958 | |
959 | const struct game thegame = { |
f3cc3e50 |
960 | "Same Game", "games.samegame", |
6bbab0fe |
961 | default_params, |
962 | game_fetch_preset, |
963 | decode_params, |
964 | encode_params, |
965 | free_params, |
966 | dup_params, |
967 | TRUE, game_configure, custom_params, |
968 | validate_params, |
969 | new_game_desc, |
6bbab0fe |
970 | validate_desc, |
971 | new_game, |
972 | dup_game, |
973 | free_game, |
974 | FALSE, solve_game, |
975 | TRUE, game_text_format, |
976 | new_ui, |
977 | free_ui, |
ae8290c6 |
978 | encode_ui, |
979 | decode_ui, |
6bbab0fe |
980 | game_changed_state, |
df11cd4e |
981 | interpret_move, |
982 | execute_move, |
1f3ee4ee |
983 | PREFERRED_TILE_SIZE, game_compute_size, game_set_size, |
6bbab0fe |
984 | game_colours, |
985 | game_new_drawstate, |
986 | game_free_drawstate, |
987 | game_redraw, |
988 | game_anim_length, |
989 | game_flash_length, |
990 | game_wants_statusbar, |
991 | FALSE, game_timing_state, |
992 | 0, /* mouse_priorities */ |
993 | }; |