2 * Parsing of the structure of the YPP client's displayed image
5 * This is part of ypp-sc-tools, a set of third-party tools for assisting
6 * players of Yohoho Puzzle Pirates.
8 * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
24 * are used without permission. This program is not endorsed or
25 * sponsored by Three Rings.
28 #include "structure.h"
30 static CanonImage *cim;
32 static inline char get(int x, int y) { return cim->d[y * cim->w + x]; }
33 static inline char get_p(Point p) { return get(p.x,p.y); }
35 DEBUG_DEFINE_DEBUGF(struct)
37 #define START_MAIN {200,200}
39 #define INTERESTING_COLUMNS 7
40 #define TEXT_COLUMNS 2
43 static Rect mainr = { START_MAIN,START_MAIN };
44 static int commbasey, comminty;
45 static int colrightx[INTERESTING_COLUMNS];
46 static int text_h=-1, columns=-1;
49 char *archipelago, *island;
51 #define OTHERCOORD_x y
52 #define OTHERCOORD_y x
54 const CanonColourInfo canoncolourinfos[]= {
55 { 0x475A5E, '*' }, /* edge */
56 { 0x2C5F7A, '*' }, /* edge just under box heading shadow */
57 { 0xC5C7AE, '*' }, /* blank area of partial commodities list */
58 { 0x6B828C, '*' }, /* background of ship status meter area */
59 { 0x934405, '*' }, /* border of ship meter area */
60 { 0x7D9094, '+' }, /* interbox */
61 { 0x022158, 'O' }, /* ahoy /w output foreground */
62 { 0xB5B686, 'H' }, /* ahoy /w output heading background */
64 { 0xBDC5BF, ' ' }, /* background - pale Sugar cane, etc. */
65 { 0xADB5AF, ' ' }, /* background - dark */
66 { 0xC7E1C3, ' ' }, /* background - pale Swill, etc. */
67 { 0xB5CFB1, ' ' }, /* background - dark */
68 { 0xD6CEB0, ' ' }, /* background - pale Madder, etc. */
69 { 0xC8C0A2, ' ' }, /* background - dark */
70 { 0xE0E1D3, ' ' }, /* background - pale Lorandite, etc. */
71 { 0xD0D1C3, ' ' }, /* background - dark */
72 { 0xE5E6C1, ' ' }, /* background - pale Cloth */
73 { 0xD7D8B3, ' ' }, /* background - dark */
74 { 0xEDDED9, ' ' }, /* background - pale Dye */
75 { 0xDACBC6, ' ' }, /* background - dark */
76 { 0xD3DEDF, ' ' }, /* background - pale Paint */
77 { 0xC5D0D1, ' ' }, /* background - dark */
78 { 0xDCD1CF, ' ' }, /* background - pale Enamel */
79 { 0xCEC3C1, ' ' }, /* background - dark */
80 { 0xF3F6F5, ' ' }, /* background - pale fruit */
81 { 0xE2E7E5, ' ' }, /* background - dark */
83 { 0x000000, 'o' }, /* foreground */
84 { 0xD4B356, ' ' }, /* background (cursor) */
85 { 0xFFFFFF, 'o' }, /* foreground (cursor) */
87 { 0x5B93BF, '_' }, /* selector dropdown background */
88 { 0xD7C94F, 'X' }, /* selector dropdown foreground */
93 static void mustfail1(const char *file, int line, const char *what) {
96 "Unable to figure out contents of YPP client display.\n"
97 "Please check the following:\n"
98 " * YPP client is showing commodity listing screen\n"
99 " * YPP client window is on top (we try to raise it but your window\n"
100 " manager might have prevented that from succeeding)\n"
101 " * Your X display is 24bpp (NB some VNC servers use 16bpp by default)\n"
103 "If all of these are true, please report this as a fault.\n\n"
105 " %s:%d: requirement failed:\n"
109 static void mustfail2(void) NORET;
110 static void mustfail2(void) {
111 fprintf(stderr, "\n\nGiving up.\n");
115 #define MUST(x, ifnot) do{ \
117 mustfail1(__FILE__,__LINE__,#x); \
123 #define MP(v) fprintf(stderr," %s=%d,%d",#v,(v).x,(v).y)
124 #define MI(v) fprintf(stderr," %s=%d", #v,(v))
125 #define MIL(v) fprintf(stderr," %s=%ld", #v,(v))
126 #define MRGB(v) fprintf(stderr," %s=%06lx", #v,(v))
127 #define MC(v) fprintf(stderr," %s='%c'", #v,(v))
128 #define MS(v) fprintf(stderr," %s=\"%s\"", #v,(v))
129 #define MF(v) fprintf(stderr," %s=\"%f\"", #v,(v))
130 #define MSB(v) fprintf(stderr," %s", (v))
131 #define MR(v) fprintf(stderr," %s=%d,%d..%d,%d",\
132 #v,(v).tl.x,(v).tl.y,(v).br.x,(v).br.y)
135 #define REQUIRE_RECTANGLE(tlx,tly,brx,bry,ok) \
136 require_rectangle(tlx, tly, brx, bry, ok, __LINE__);
138 #define FOR_P_RECT(p,rr) \
139 for ((p).x=(rr).tl.x; (p).x<=(rr).br.x; (p).x++) \
140 for ((p).y=(rr).tl.y; (p).y<=(rr).br.y; (p).y++)
142 static void require_rectangle_r(Rect rr, const char *ok, int lineno) {
146 MUST( strchr(ok,c), ({
147 MI(lineno),MR(rr);MP(p);MS(ok);
151 static void require_rectangle(int tlx, int tly, int brx, int bry,
152 const char *ok, int lineno) {
153 Rect rr= {{tlx,tly},{brx,bry}};
154 require_rectangle_r(rr, ok, lineno);
157 static void debug_rect(const char *what, int whati, Rect rr) {
158 if (!DEBUGP(rect)) return;
160 fprintf(debug, "%s %d: %d,%d..%d,%d:\n", what, whati,
161 rr.tl.x,rr.tl.y, rr.br.x,rr.br.y);
162 w= rr.br.x - rr.tl.x + 1;
163 for (y=rr.tl.y; y<=rr.br.y; y++) {
164 fprintf(debug, "%4d%*s|", y, rr.tl.x,"");
165 fwrite(cim->d + y*cim->w + rr.tl.x, 1, w, debug);
172 static int commod_selector_matches(Rect search, const char *const *all,
173 int allh, int allw) {
174 int alloffy, alloffx;
175 for (alloffy=0; alloffy < search.br.y; alloffy++) {
176 if (alloffy+allh-1 < search.tl.y) continue;
177 for (alloffx=search.tl.x; alloffx+allw-1 <= search.br.x; alloffx++) {
180 for (x=0; x<allw; x++)
181 for (y=0; y<allh; y++) {
183 if (want==' ') continue;
184 if (get(alloffx+x, alloffy+y) == want)
189 debugf("CHECKCOMMOD alloff=%d,%d good=%d bad=%d\n",
190 alloffx,alloffy, good,bad);
198 #define WALK_UNTIL(point,coord,increm,last,edge) \
200 if ((point).coord == (last)+(increm)) break; \
201 if (get_p((point)) == (edge)) { (point).coord -= (increm); break; } \
202 (point).coord += (increm); \
205 #define WALK_UNTIL_MUST(point,coord,increm,last,edge) \
207 WALK_UNTIL(point,coord,increm,last,edge); \
208 MUST( (point).coord != (last)+(increm), \
209 MP(point); MI(increm); MI(last); MC(edge); \
213 #define ADJUST_BOX(search,insidechrs,OP,want, lim,LIMIT_MUST, TLBR,XY,increm) \
215 LIMIT_MUST( (search).tl.XY != (search).br.XY && \
216 (search).tl.XY != (lim), \
217 MR((search));MSB(#TLBR);MSB(#XY) ); \
219 Point p=(search).tl; \
220 for (p.XY=(search).TLBR.XY; \
221 p.OTHERCOORD_##XY <= (search).br.OTHERCOORD_##XY; \
222 p.OTHERCOORD_##XY++) \
223 got += !!strchr(insidechrs, get_p(p)); \
224 if ((got) OP (want)) \
226 (search).TLBR.XY += increm; \
229 void find_structure(CanonImage *im, int *max_relevant_y_r) {
232 Rect whole = { {0,0}, {cim->w-1,cim->h-1} };
236 for (y=0, xscaleunit=1; y<4; y++, xscaleunit*=10) {
238 for (x=0; x<=cim->w; x++) {
239 if (x % xscaleunit) fputc(' ',debug);
240 else fprintf(debug,"%d",(x / xscaleunit)%10);
246 WALK_UNTIL_MUST(mainr.tl, x,-1, whole.tl.x, '*');
247 WALK_UNTIL_MUST(mainr.tl, y,-1, whole.tl.y, '*');
248 WALK_UNTIL_MUST(mainr.br, x,+1, whole.br.x, '*');
249 WALK_UNTIL_MUST(mainr.br, y,+1, whole.br.y, '*');
251 REQUIRE_RECTANGLE(mainr.tl.x-1, mainr.tl.y, mainr.tl.x-1, mainr.br.y, "*");
252 REQUIRE_RECTANGLE(mainr.br.x+1, mainr.tl.y, mainr.br.x+1, mainr.br.y, "*");
253 REQUIRE_RECTANGLE(mainr.tl.x, mainr.tl.y-1, mainr.br.x, mainr.tl.y-1, "*");
254 REQUIRE_RECTANGLE(mainr.tl.x, mainr.br.y+1, mainr.br.x, mainr.br.y+1, "*");
256 #define CHECK_STRIP_BORDER(tlbr,xy,increm) \
261 csb_p.xy= mainr.tlbr.xy; \
262 if (get_p(csb_p)=='+') { \
264 csb_r.tl.xy= csb_p.xy; \
265 csb_r.br.xy= csb_p.xy; \
266 require_rectangle_r(csb_r, "+", __LINE__); \
267 mainr.tlbr.xy += increm; \
271 debug_rect("mainr",0, mainr);
273 CHECK_STRIP_BORDER(tl,x,+1);
274 CHECK_STRIP_BORDER(tl,y,+1);
275 CHECK_STRIP_BORDER(br,x,-1);
276 CHECK_STRIP_BORDER(br,y,-1);
278 debug_rect("mainr",1, mainr);
280 Point up = START_MAIN;
281 WALK_UNTIL_MUST(up, y,-1, mainr.tl.y, '+');
283 Point down = START_MAIN;
285 WALK_UNTIL_MUST(down, y,+1, mainr.br.y, '+');
288 comminty= down.y - up.y + 2;
290 Point across= { mainr.tl.x, commbasey };
293 MUST( get_p(across) != '+', MI(colno);MP(across);MR(mainr);MI(commbasey) );
294 WALK_UNTIL(across, x,+1, mainr.br.x, '+');
295 MUST( colno < MAX_COLUMNS, MP(across);MR(mainr);MI(commbasey); );
297 if (colrx > mainr.br.x) colrx= mainr.br.x;
298 if (colno < INTERESTING_COLUMNS)
299 colrightx[colno]= colrx;
303 if (across.x >= mainr.br.x-1)
307 REQUIRE_RECTANGLE(across.x,mainr.tl.y, across.x,mainr.br.y, "+");
310 MUST( colno >= MIN_COLUMNS, MI(colno);MR(mainr);MP(across); );
312 #define SET_ONCE(var,val) do{ \
314 if ((var)==-1) (var)= v; \
315 else MUST( (var) == v, MSB(#var);MI((var));MI(v);MR(mainr); ); \
318 SET_ONCE(columns, colno);
319 SET_ONCE(text_h, comminty - 1);
320 if (max_relevant_y_r)
321 SET_ONCE(*max_relevant_y_r, mainr.br.y + 10);
323 MUST( text_h <= OCR_MAX_H, MI(text_h) );
326 void check_correct_commodities(void) {
327 Rect search= { { 50,39 }, { 130,59 } };
329 ADJUST_BOX(search,"_",>=,10, cim->h, MUST, tl,y,+1);
330 ADJUST_BOX(search,"_",>=,10, 0, MUST, br,y,-1);
332 debug_rect("commodselr",1, search);
334 static const char *all_small[]= {
335 " ___________________________________ ",
336 " ________X____X__X____________________ ",
337 " ________ X___ X_ X_____XXXXXXXXXXX_____ ",
338 "_________X_X__ X_ X______XXXXXXXXX_______",
339 "________ X X__ X_ X_______XXXXXXX________",
340 "________X_ _X_ X_ X________XXXXX_________",
341 "_______ X__ X_ X_ X_________XXX__________",
342 "_______XXXXXXX X_ X__________X___________",
343 " _____ X X X_ X______________________",
344 " ____X_____ _XX_ X______________________",
345 " __ _______ __ ______________________ ",
347 static const char *all_big[]= {
348 "???_______________________________________???",
349 "??_________________________________________??",
350 "?_________X______X___X______________________?",
351 "_________?X_____?X__?X______XXXXXXXXXXX______",
352 "_________X_X____?X__?X_______XXXXXXXXX_______",
353 "________?X?X____?X__?X________XXXXXXX________",
354 "________X_?_X___?X__?X_________XXXXX_________",
355 "_______?X__?X___?X__?X__________XXX__________",
356 "_______?XXXXX___?X__?X___________X___________",
357 "_______X????_X__?X__?X_______________________",
358 "?_____?X____?X__?X__?X_______________________",
359 "??____X_____?_X_?X__?X_______________________",
360 "???__?_______?__?___?_______________________?",
363 #define COMMOD_SELECTOR_MATCHES(all) \
364 commod_selector_matches(search, all, \
365 sizeof((all))/sizeof((all)[0]), \
368 if (!(COMMOD_SELECTOR_MATCHES(all_small) ||
369 COMMOD_SELECTOR_MATCHES(all_big)))
370 fatal("Commodities selector not set to `All'.");
373 CanonImage *alloc_canon_image(int w, int h) {
374 CanonImage *im= mmalloc(sizeof(CanonImage) + w*h);
377 memset(im->d,'?',w*h);
381 static void file_read_image_ppm(FILE *f) {
383 unsigned char rgb_buf[3];
386 pnm_readpaminit(f, &inpam, sizeof(inpam));
387 if (!(inpam.maxval == 255 &&
388 inpam.bytes_per_sample == 1 &&
389 inpam.format == RPPM_FORMAT))
390 fatal("PNM screenshot(s) file must be 8bpp 1 byte-per-sample RGB raw");
392 CANONICALISE_IMAGE(im, inpam.width, inpam.height, {
393 int r= fread(&rgb_buf,1,3,f);
394 sysassert(!ferror(f));
395 if (r!=3) fatal("PNM screenshot(s) file ends unexpectedly");
398 ((unsigned long)rgb_buf[0]<<16) |
399 ((unsigned long)rgb_buf[1]<<8) |
404 sysassert(!ferror(screenshot_file));
406 if (!(npages < MAX_PAGES))
407 fatal("Too many images in screenshots file; max is %d.\n", MAX_PAGES);
409 page_images[npages++]= im;
412 void read_one_screenshot(void) {
413 progress("reading screenshot...");
414 file_read_image_ppm(screenshot_file);
415 progress_log("read screenshot.");
418 void read_screenshots(void) {
421 sysassert(! fstat(fileno(screenshot_file), &stab) );
424 if (S_ISREG(stab.st_mode)) {
425 long pos= ftell(screenshot_file);
426 if (pos == stab.st_size) break;
428 int c= fgetc(screenshot_file);
430 ungetc(c, screenshot_file);
432 progress("reading screenshot %d...",npages);
433 file_read_image_ppm(screenshot_file);
435 sysassert(!ferror(screenshot_file));
436 progress_log("read %d screenshots.",npages);
439 static void find_commodity(int offset, Rect *rr) {
440 /* rr->tl.x==-1 if offset out of range */
441 rr->tl.y= commbasey - offset*comminty;
442 rr->br.y= rr->tl.y + comminty-2;
443 if (rr->tl.y < mainr.tl.y || rr->br.y > mainr.br.y) { rr->tl.x=-1; return; }
445 rr->tl.x= mainr.tl.x;
446 rr->br.x= mainr.br.x;
448 if (rr->tl.y > mainr.tl.y)
449 REQUIRE_RECTANGLE(rr->tl.x,rr->tl.y-1, rr->br.x,rr->tl.y-1, "+");
450 if (rr->br.y < mainr.tl.y)
451 REQUIRE_RECTANGLE(rr->tl.x,rr->br.y+1, rr->br.x,rr->br.y+1, "+");
454 static void find_table_entry(Rect commod, int colno, Rect *cell) {
455 cell->tl.y= commod.tl.y;
456 cell->br.y= commod.br.y;
457 cell->tl.x= !colno ? commod.tl.x : colrightx[colno-1]+2;
458 cell->br.x= colrightx[colno];
459 debug_rect("cell", colno, *cell);
461 const RgbImage *ri= cim->rgb;
463 Rgb background= ri_rgb(ri, cell->br.x, cell->br.y);
464 long bg_count=0, light_count=0, dark_count=0;
466 FOR_P_RECT(p,*cell) {
467 Rgb here= ri_rgb(ri, p.x, p.y);
468 if (here == background) bg_count++;
469 else if (here < background) dark_count++;
470 else if (here > background) light_count++;
472 long total_count= RECT_W(*cell) * RECT_H(*cell);
473 MUST( bg_count > total_count / 2,
474 MR(*cell);MIL(total_count);MIL(bg_count);
475 MIL(light_count);MIL(dark_count) );
476 if (bg_count == total_count)
479 MUST( !!dark_count != !!light_count,
480 MR(*cell);MIL(total_count);MIL(bg_count);
481 MIL(light_count);MIL(dark_count) );
483 debugf("TABLEENTRY col=%d %d,%d..%d,%d bg=%ld light=%ld dark=%ld\n",
484 colno, cell->tl.x,cell->tl.y, cell->br.x,cell->br.y,
485 bg_count, light_count, dark_count);
490 foreground= 0xffffffU;
498 FOR_P_RECT(p,*cell) {
499 Rgb here= ri_rgb(ri, p.x, p.y);
500 double alpha[3], alpha_mean=0;
502 for (i=0; i<3; i++) {
503 unsigned char here_chan= here >> (i*8);
504 unsigned char bg_chan= background >> (i*8);
505 unsigned char fg_chan= foreground >> (i*8);
507 ((double)here_chan - (double)bg_chan) /
508 ((fg_chan + fg_extra) - (double)bg_chan);
509 alpha[i]= alpha_chan;
510 alpha_mean += alpha_chan * (1/3.0);
513 double thresh= 1.5/AAMAXVAL;
514 double alpha_min= alpha_mean - thresh;
515 double alpha_max= alpha_mean + thresh;
517 MUST( alpha_min <= alpha[i] && alpha[i] <= alpha_max,
518 MI(i);MRGB(here);MRGB(background);MRGB(foreground);
519 MF(alpha_min);MF(alpha[i]);MF(alpha_max) );
521 MUST( 0 <= alpha_mean && alpha_mean < 0.999,
522 MRGB(here);MRGB(background);MRGB(foreground);
523 MF(alpha_mean); MF(alpha[0]);MF(alpha[1]);MF(alpha[2]); );
524 int here_int= floor((AAMAXVAL+1)*alpha_mean);
525 assert(here_int <= AAMAXVAL);
526 if (!(here_int==0 || here_int==AAMAXVAL)) monochrome=0;
527 cim->d[p.y * cim->w + p.x]= '0' + here_int;
530 debug_rect("cell0M", colno, *cell);
532 require_rectangle_r(*cell, "0123456789", __LINE__);
535 static void ocr_rectangle(Rect r, const OcrCellType ct, FILE *tsv_output) {
536 OcrResultGlyph *results, *res;
538 int w= r.br.x - r.tl.x + 1;
541 for (x=0; x<w; x++) {
543 for (y=0; y<text_h; y++) {
544 Point here= { x+r.tl.x, y+r.tl.y };
545 int pixel= get_p(here);
546 if (pixel==' ') pixel= '0';
547 MUST( pixel >= '0' && pixel <= '0'+AAMAXVAL,
548 MC(pixel);MP(here);MSB(ocr_celltype_name(ct));MR(r); );
549 pixcol_p_add(&cols[x], y, pixel-'0');
554 results= ocr(rd,ct,w,cols);
555 for (res=results; res->s; res++)
556 fputs(res->s,tsv_output);
559 void analyse(FILE *tsv_output) {
561 int page, tryrect, colno;
563 for (page=0; page<npages; page++) {
564 find_structure(page_images[page], 0);
567 check_correct_commodities();
570 rd= ocr_init(text_h);
572 progress("Scanning page %d...",page);
574 for (tryrect= +cim->h; tryrect >= -cim->h; tryrect--) {
575 find_commodity(tryrect, &thisr);
578 debug_rect("commod",tryrect, thisr);
581 for (colno=0; colno<columns; colno++) {
582 find_table_entry(thisr,colno,&entryr);
583 fputs(tab, tsv_output);
584 ocr_rectangle(entryr,
587 : &ocr_celltype_number,
591 fputs("\n", tsv_output);
592 sysassert(!ferror(tsv_output));
593 sysassert(!fflush(tsv_output));
596 progress("Commodity table scan complete.");
599 //static Rect islandnamer;
601 DEBUG_DEFINE_SOME_DEBUGF(structcolon,colondebugf)
603 Rect find_sunshine_widget(void) {
606 sunshiner.tl.x= cim->w - 1034 + 885;
607 sunshiner.br.x= cim->w - 1034 + 1020;
611 ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, tl,y,-1);
612 ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, br,y,+1);
613 debug_rect("sunshiner",0, sunshiner);
615 MUST(sunshiner.br.y - sunshiner.tl.y > 20, MR(sunshiner));
618 ADJUST_BOX(sunshiner,"o",>=,20, (cim->w - 1034 + 700), MUST, tl,x,-1);
619 ADJUST_BOX(sunshiner,"o",>=,20, cim->w, MUST, br,x,+1);
620 debug_rect("sunshiner",1, sunshiner);
624 void find_islandname(RgbImage *ri) {
625 find_structure(page_images[0], 0);
627 Rect sunshiner= find_sunshine_widget();
628 char sunshine[MAXIMGIDENT], archisland[MAXIMGIDENT];
630 const unsigned char *srcp;
631 unsigned char *destp, *endp;
632 for (srcp=page_images[0]->rgb->data, destp=ri->data,
633 endp= ri->data + 3 * ri->w * ri->h;
636 unsigned char c= *srcp & 0xf0;
640 identify_rgbimage(ri, sunshiner, sunshine, "sunshine widget");
642 if (!memcmp(sunshine,"Vessel ",5)) {
645 islandnamer.tl.x= cim->w - 1034 + 885;
646 islandnamer.br.x= cim->w - 1034 + 1020;
647 islandnamer.tl.y= 128;
648 islandnamer.br.y= 156;
650 ADJUST_BOX(islandnamer,"o",>=,5, 0, MUST, tl,y,+1);
651 ADJUST_BOX(islandnamer,"o",>=,5, cim->h, MUST, br,y,-1);
653 ADJUST_BOX(islandnamer,"o",>=,1, 0, MUST, tl,x,+1);
654 ADJUST_BOX(islandnamer,"o",>=,1, cim->w, MUST, br,x,-1);
656 debug_rect("islandnamer",0, islandnamer);
657 // int larger_islandnamebry= islandnamer.tl.y + 25;
658 // MUST(islandnamer.br.y < larger_islandnamebry,
659 // MR(islandnamer);MI(larger_islandnamebry));
660 // islandnamer.br.y = larger_islandnamebry;
661 debug_rect("islandnamer",1, islandnamer);
664 for (x=islandnamer.tl.x; x<=islandnamer.br.x; x++)
665 for (y=islandnamer.tl.y; y<=islandnamer.br.y; y++) {
666 if (RI_PIXEL(ri,x,y)[0] < 0x40) {
667 for (i=0; i<3; i++) {
668 RI_PIXEL(ri,x,y)[i]= 0;
673 identify_rgbimage(ri, islandnamer, archisland, "island");
674 } else if (!strcmp(sunshine,"Land - Ahoy!")) {
677 islandnamer.tl.x= (sunshiner.tl.x + sunshiner.br.x) / 2;
678 islandnamer.tl.y= sunshiner.tl.y + 100;
679 islandnamer.br= islandnamer.tl;
680 debug_rect("islandnamer",__LINE__, islandnamer);
682 WALK_UNTIL_MUST(islandnamer.tl,y, -1, sunshiner.br.y, 'H');
683 WALK_UNTIL_MUST(islandnamer.tl,x, -1, 0, 'o');
684 WALK_UNTIL_MUST(islandnamer.br,x, +1, cim->w, 'o');
685 debug_rect("islandnamer",__LINE__, islandnamer);
687 require_rectangle_r(islandnamer, "O*", __LINE__);
689 int rw= RECT_W(islandnamer);
690 ADJUST_BOX(islandnamer,"O",>=,rw-4, cim->h, MUST,br,y,+1);
691 debug_rect("islandnamer",__LINE__, islandnamer);
693 islandnamer.br.y += 2;
694 ADJUST_BOX(islandnamer,"O",>=,1, cim->h, MUST,br,y,+1);
695 debug_rect("islandnamer",__LINE__, islandnamer);
697 islandnamer.tl.y= islandnamer.br.y-1;
698 islandnamer.br.y= islandnamer.br.y+1;
699 int rh= RECT_H(islandnamer);
700 ADJUST_BOX(islandnamer,"*",>=,rw, cim->h, MUST,br,y,+1);
701 ADJUST_BOX(islandnamer,"O",>=,rh, cim->w, MUST,tl,x,+1);
702 debug_rect("islandnamer",__LINE__, islandnamer);
704 MUST( RECT_H(islandnamer) <= 31, MR(islandnamer));
707 int nspaces=1, might_be_colon=0;
708 uint32_t colon_pattern= 0;
711 for (p.x=islandnamer.br.x; p.x>islandnamer.tl.x; p.x--) {
712 colondebugf("structcolon: x=%4d nsp=%2d mbc=%d cp=%08"PRIx32" ",
713 p.x, nspaces, might_be_colon, colon_pattern);
716 int runs[32], nruns=0;
717 runs[0]=0; runs[1]=0;
719 for (p.y=islandnamer.tl.y; p.y<=islandnamer.br.y; p.y++) {
722 case 'O': runs[nruns]++; pattern |= 1u; break;
723 case '*': if (runs[nruns]) { nruns++; runs[nruns]=0; } break;
728 colondebugf(" pat=%08"PRIx32" nruns=%d runs[]={%d,%d..} ",
729 pattern, nruns, runs[0],runs[1]);
733 /* omg it _is_ a colon */
738 if (nruns==2 && runs[1]==runs[0]) {
740 if (pattern==colon_pattern)
741 goto ok_might_be_colon;
742 } else if (nspaces>=2) {
743 colon_pattern= pattern;
745 goto ok_might_be_colon;
752 colondebugf(" nsp=%2d mbc=%d\n", nspaces, might_be_colon);
754 MUST(!"colon found", MP(p);MR(islandnamer) );
757 colondebugf(" found\n");
758 islandnamer.br.x= p.x;
760 identify_rgbimage(ri, islandnamer, archisland, "island");
763 MUST(!"sunshine shows ship or ahoy", MS(sunshine) );
767 char *delim= strstr(archisland," - ");
769 archipelago= masprintf("%.*s", (int)(delim-archisland), archisland);
770 island= masprintf("%s", delim+3);