apps/plugins/sliding_puzzle.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Vicentini Martin
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "plugin.h"
  22
  23 #ifdef HAVE_LCD_BITMAP
  24 PLUGIN_HEADER
  25
  26 /* variable button definitions */
  27 #if CONFIG_KEYPAD == RECORDER_PAD
  28 #define PUZZLE_QUIT BUTTON_OFF
  29 #define PUZZLE_LEFT BUTTON_LEFT
  30 #define PUZZLE_RIGHT BUTTON_RIGHT
  31 #define PUZZLE_UP BUTTON_UP
  32 #define PUZZLE_DOWN BUTTON_DOWN
  33 #define PUZZLE_SHUFFLE BUTTON_F1
  34 #define PUZZLE_PICTURE BUTTON_F2
  35
  36 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  37 #define PUZZLE_QUIT BUTTON_OFF
  38 #define PUZZLE_LEFT BUTTON_LEFT
  39 #define PUZZLE_RIGHT BUTTON_RIGHT
  40 #define PUZZLE_UP BUTTON_UP
  41 #define PUZZLE_DOWN BUTTON_DOWN
  42 #define PUZZLE_SHUFFLE BUTTON_F1
  43 #define PUZZLE_PICTURE BUTTON_F2
  44
  45 #elif CONFIG_KEYPAD == ONDIO_PAD
  46 #define PUZZLE_QUIT BUTTON_OFF
  47 #define PUZZLE_LEFT BUTTON_LEFT
  48 #define PUZZLE_RIGHT BUTTON_RIGHT
  49 #define PUZZLE_UP BUTTON_UP
  50 #define PUZZLE_DOWN BUTTON_DOWN
  51 #define PUZZLE_SHUFFLE_PICTURE_PRE BUTTON_MENU
  52 #define PUZZLE_SHUFFLE (BUTTON_MENU | BUTTON_REPEAT)
  53 #define PUZZLE_PICTURE (BUTTON_MENU | BUTTON_REL)
  54
  55 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  56       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  57 #define PUZZLE_QUIT BUTTON_OFF
  58 #define PUZZLE_LEFT BUTTON_LEFT
  59 #define PUZZLE_RIGHT BUTTON_RIGHT
  60 #define PUZZLE_UP BUTTON_UP
  61 #define PUZZLE_DOWN BUTTON_DOWN
  62 #define PUZZLE_SHUFFLE BUTTON_SELECT
  63 #define PUZZLE_PICTURE BUTTON_ON
  64
  65 #define PUZZLE_RC_QUIT BUTTON_RC_STOP
  66
  67 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  68       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  69       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  70 #define PUZZLE_QUIT    (BUTTON_SELECT | BUTTON_MENU)
  71 #define PUZZLE_LEFT BUTTON_LEFT
  72 #define PUZZLE_RIGHT BUTTON_RIGHT
  73 #define PUZZLE_UP      BUTTON_MENU
  74 #define PUZZLE_DOWN    BUTTON_PLAY
  75 #define PUZZLE_SHUFFLE (BUTTON_SELECT | BUTTON_LEFT)
  76 #define PUZZLE_PICTURE (BUTTON_SELECT | BUTTON_RIGHT)
  77
  78 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
  79 #define PUZZLE_QUIT BUTTON_POWER
  80 #define PUZZLE_LEFT BUTTON_LEFT
  81 #define PUZZLE_RIGHT BUTTON_RIGHT
  82 #define PUZZLE_UP BUTTON_UP
  83 #define PUZZLE_DOWN BUTTON_DOWN
  84 #define PUZZLE_SHUFFLE BUTTON_REC
  85 #define PUZZLE_PICTURE BUTTON_PLAY
  86
  87 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  88 #define PUZZLE_QUIT BUTTON_POWER
  89 #define PUZZLE_LEFT BUTTON_LEFT
  90 #define PUZZLE_RIGHT BUTTON_RIGHT
  91 #define PUZZLE_UP BUTTON_UP
  92 #define PUZZLE_DOWN BUTTON_DOWN
  93 #define PUZZLE_SHUFFLE BUTTON_SELECT
  94 #define PUZZLE_PICTURE BUTTON_A
  95
  96 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
  97 (CONFIG_KEYPAD == SANSA_C200_PAD)
  98 #define PUZZLE_QUIT BUTTON_POWER
  99 #define PUZZLE_LEFT BUTTON_LEFT
 100 #define PUZZLE_RIGHT BUTTON_RIGHT
 101 #define PUZZLE_UP BUTTON_UP
 102 #define PUZZLE_DOWN BUTTON_DOWN
 103 #define PUZZLE_SHUFFLE BUTTON_REC
 104 #define PUZZLE_PICTURE BUTTON_SELECT
 105
 106 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 107 #define PUZZLE_QUIT (BUTTON_HOME|BUTTON_REPEAT)
 108 #define PUZZLE_LEFT BUTTON_LEFT
 109 #define PUZZLE_RIGHT BUTTON_RIGHT
 110 #define PUZZLE_UP BUTTON_UP
 111 #define PUZZLE_DOWN BUTTON_DOWN
 112 #define PUZZLE_SHUFFLE BUTTON_SELECT|BUTTON_DOWN
 113 #define PUZZLE_PICTURE BUTTON_SELECT
 114
 115 #elif (CONFIG_KEYPAD == SANSA_CLIP_PAD)
 116 #define PUZZLE_QUIT BUTTON_POWER
 117 #define PUZZLE_LEFT BUTTON_LEFT
 118 #define PUZZLE_RIGHT BUTTON_RIGHT
 119 #define PUZZLE_UP BUTTON_UP
 120 #define PUZZLE_DOWN BUTTON_DOWN
 121 #define PUZZLE_SHUFFLE BUTTON_HOME
 122 #define PUZZLE_PICTURE BUTTON_SELECT
 123
 124 #elif (CONFIG_KEYPAD == SANSA_M200_PAD)
 125 #define PUZZLE_QUIT BUTTON_POWER
 126 #define PUZZLE_LEFT BUTTON_LEFT
 127 #define PUZZLE_RIGHT BUTTON_RIGHT
 128 #define PUZZLE_UP BUTTON_UP
 129 #define PUZZLE_DOWN BUTTON_DOWN
 130 #define PUZZLE_SHUFFLE (BUTTON_SELECT | BUTTON_UP)
 131 #define PUZZLE_PICTURE (BUTTON_SELECT | BUTTON_REL)
 132
 133 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
 134 #define PUZZLE_QUIT BUTTON_POWER
 135 #define PUZZLE_LEFT BUTTON_LEFT
 136 #define PUZZLE_RIGHT BUTTON_RIGHT
 137 #define PUZZLE_UP BUTTON_SCROLL_UP
 138 #define PUZZLE_DOWN BUTTON_SCROLL_DOWN
 139 #define PUZZLE_SHUFFLE BUTTON_REW
 140 #define PUZZLE_PICTURE BUTTON_PLAY
 141
 142 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
 143 #define PUZZLE_QUIT BUTTON_BACK
 144 #define PUZZLE_LEFT BUTTON_LEFT
 145 #define PUZZLE_RIGHT BUTTON_RIGHT
 146 #define PUZZLE_UP BUTTON_UP
 147 #define PUZZLE_DOWN BUTTON_DOWN
 148 #define PUZZLE_SHUFFLE BUTTON_SELECT
 149 #define PUZZLE_PICTURE BUTTON_MENU
 150
 151 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 152 #define PUZZLE_QUIT BUTTON_POWER
 153 #define PUZZLE_LEFT BUTTON_LEFT
 154 #define PUZZLE_RIGHT BUTTON_RIGHT
 155 #define PUZZLE_UP BUTTON_UP
 156 #define PUZZLE_DOWN BUTTON_DOWN
 157 #define PUZZLE_SHUFFLE BUTTON_SELECT
 158 #define PUZZLE_PICTURE BUTTON_DISPLAY
 159
 160 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 161 #define PUZZLE_QUIT BUTTON_RC_REC
 162 #define PUZZLE_LEFT BUTTON_RC_REW
 163 #define PUZZLE_RIGHT BUTTON_RC_FF
 164 #define PUZZLE_UP BUTTON_RC_VOL_UP
 165 #define PUZZLE_DOWN BUTTON_RC_VOL_DOWN
 166 #define PUZZLE_SHUFFLE BUTTON_RC_MODE
 167 #define PUZZLE_PICTURE BUTTON_RC_MENU
 168
 169 #elif (CONFIG_KEYPAD == COWON_D2_PAD)
 170 #define PUZZLE_QUIT BUTTON_POWER
 171 #define PUZZLE_QUIT_TEXT "[POWER]"
 172
 173 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 174 #define PUZZLE_QUIT BUTTON_BACK
 175 #define PUZZLE_LEFT BUTTON_LEFT
 176 #define PUZZLE_RIGHT BUTTON_RIGHT
 177 #define PUZZLE_UP BUTTON_UP
 178 #define PUZZLE_DOWN BUTTON_DOWN
 179 #define PUZZLE_SHUFFLE BUTTON_PLAY
 180 #define PUZZLE_PICTURE BUTTON_MENU
 181
 182 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 183 #define PUZZLE_QUIT BUTTON_POWER
 184 #define PUZZLE_LEFT BUTTON_LEFT
 185 #define PUZZLE_RIGHT BUTTON_RIGHT
 186 #define PUZZLE_UP BUTTON_UP
 187 #define PUZZLE_DOWN BUTTON_DOWN
 188 #define PUZZLE_SHUFFLE BUTTON_VIEW
 189 #define PUZZLE_PICTURE BUTTON_MENU
 190
 191 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 192 #define PUZZLE_QUIT BUTTON_POWER
 193 #define PUZZLE_LEFT BUTTON_PREV
 194 #define PUZZLE_RIGHT BUTTON_NEXT
 195 #define PUZZLE_UP BUTTON_UP
 196 #define PUZZLE_DOWN BUTTON_DOWN
 197 #define PUZZLE_SHUFFLE BUTTON_RIGHT
 198 #define PUZZLE_PICTURE BUTTON_MENU
 199
 200 #elif CONFIG_KEYPAD == ONDAVX747_PAD || \
 201 CONFIG_KEYPAD == ONDAVX777_PAD || \
 202 CONFIG_KEYPAD == MROBE500_PAD
 203 #define PUZZLE_QUIT BUTTON_POWER
 204 #define PUZZLE_QUIT_TEXT "[POWER]"
 205
 206 #elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
 207 #define PUZZLE_QUIT    BUTTON_REC
 208 #define PUZZLE_LEFT    BUTTON_LEFT
 209 #define PUZZLE_RIGHT   BUTTON_RIGHT
 210 #define PUZZLE_UP      BUTTON_UP
 211 #define PUZZLE_DOWN    BUTTON_DOWN
 212 #define PUZZLE_SHUFFLE BUTTON_REW
 213 #define PUZZLE_PICTURE BUTTON_PLAY
 214
 215 #elif (CONFIG_KEYPAD == PBELL_VIBE500_PAD)
 216 #define PUZZLE_QUIT    BUTTON_REC
 217 #define PUZZLE_LEFT    BUTTON_PREV
 218 #define PUZZLE_RIGHT   BUTTON_NEXT
 219 #define PUZZLE_UP      BUTTON_UP
 220 #define PUZZLE_DOWN    BUTTON_DOWN
 221 #define PUZZLE_SHUFFLE BUTTON_CANCEL
 222 #define PUZZLE_PICTURE BUTTON_MENU
 223
 224 #else
 225 #error No keymap defined!
 226 #endif
 227
 228 #ifdef HAVE_TOUCHSCREEN
 229 #ifndef PUZZLE_QUIT
 230 #define PUZZLE_QUIT    BUTTON_TOPLEFT
 231 #endif
 232 #ifndef PUZZLE_LEFT
 233 #define PUZZLE_LEFT    BUTTON_MIDLEFT
 234 #endif
 235 #ifndef PUZZLE_RIGHT
 236 #define PUZZLE_RIGHT   BUTTON_MIDRIGHT
 237 #endif
 238 #ifndef PUZZLE_UP
 239 #define PUZZLE_UP      BUTTON_TOPMIDDLE
 240 #endif
 241 #ifndef PUZZLE_DOWN
 242 #define PUZZLE_DOWN    BUTTON_BOTTOMMIDDLE
 243 #endif
 244 #ifndef PUZZLE_SHUFFLE
 245 #define PUZZLE_SHUFFLE BUTTON_BOTTOMLEFT
 246 #endif
 247 #ifndef PUZZLE_PICTURE
 248 #define PUZZLE_PICTURE BUTTON_CENTER
 249 #endif
 250 #ifndef PUZZLE_QUIT_TEXT
 251 #define PUZZLE_QUIT_TEXT "[TOPLEFT]"
 252 #endif
 253 #ifndef PUZZLE_SHUFFLE_TEXT
 254 #define PUZZLE_SHUFFLE_TEXT "[BOTTOMLEFT]"
 255 #endif
 256 #ifndef PUZZLE_PICTURE_TEXT
 257 #define PUZZLE_PICTURE_TEXT "[CENTER]"
 258 #endif
 259 #endif
 260
 261 #ifdef HAVE_ALBUMART
 262 #include "lib/read_image.h"
 263 #define READ_IMAGE read_image_file
 264 #else
 265 #define READ_IMAGE rb->read_bmp_file
 266 #endif
 267
 268 #include "pluginbitmaps/sliding_puzzle.h"
 269 #define IMAGE_WIDTH BMPWIDTH_sliding_puzzle
 270 #define IMAGE_HEIGHT BMPHEIGHT_sliding_puzzle
 271 #define IMAGE_SIZE IMAGE_WIDTH
 272
 273 /* use a square image, (the default Archos bitmap looks square on its display)
 274    Puzzle image dimension is min(lcd_height,lcd_width)
 275    4x4 is more convenient for square puzzles
 276    Note: sliding_puzzle.bmp should be evenly divisible by SPOTS_X
 277    and SPOTS_Y, otherwise lcd_bitmap_part stride won't be correct */
 278 #define SPOTS_X 4
 279 #define SPOTS_Y 4
 280 #define SPOTS_WIDTH  (IMAGE_WIDTH / SPOTS_X)
 281 #define SPOTS_HEIGHT (IMAGE_HEIGHT / SPOTS_Y)
 282 #define NUM_SPOTS    (SPOTS_X*SPOTS_Y)
 283 #define HOLE_ID      (NUM_SPOTS)
 284 #define INITIAL_HOLE (HOLE_ID-1)
 285
 286 enum picmodes
 287 {
 288     PICMODE_NUMERALS = 0,
 289     PICMODE_INITIAL_PICTURE,
 290     PICMODE_DEFAULT_PICTURE,
 291 #ifdef HAVE_ALBUMART
 292     PICMODE_ALBUM_ART,
 293 #endif
 294 //    PICMODE_RANDOM,
 295     PICMODE_LAST_XXX /* placeholder */
 296 };
 297
 298 static const char* const picmode_descriptions[] = {
 299     "Numerals",
 300     "Viewer Picture",
 301     "Default Picture",
 302 #ifdef HAVE_ALBUMART
 303     "Album Art",
 304 #endif
 305     "Shouldn't Get Here",
 306 };
 307
 308 static int spots[NUM_SPOTS];
 309 static int hole = INITIAL_HOLE, moves;
 310 static unsigned char s[32];
 311 static enum picmodes picmode = PICMODE_INITIAL_PICTURE;
 312 static int num_font = FONT_UI;
 313 static int moves_font = FONT_UI;
 314 static int moves_y = 0;
 315
 316 static unsigned char *img_buf;
 317 static size_t img_buf_len;
 318 #ifdef HAVE_ALBUMART
 319 static char albumart_path[MAX_PATH+1];
 320 #endif
 321 static char img_buf_path[MAX_PATH+1];
 322
 323 static const fb_data * puzzle_bmp_ptr;
 324 /* initial_bmp_path points to selected bitmap if this game is launched
 325    as a viewer for a .bmp file, or NULL if game is launched regular way */
 326 static const char * initial_bmp_path=NULL;
 327
 328 #ifdef HAVE_ALBUMART
 329 const char * get_albumart_bmp_path(void)
 330 {
 331     struct mp3entry* track = rb->audio_current_track();
 332
 333     if (!track || !track->path || track->path[0] == '\0')
 334         return NULL;
 335
 336     if (!rb->search_albumart_files(track, "", albumart_path, MAX_PATH ) )
 337         return NULL;
 338
 339     albumart_path[ MAX_PATH ] = '\0';
 340     return albumart_path;
 341 }
 342 #endif
 343
 344 const char * get_random_bmp_path(void)
 345 {
 346     return(initial_bmp_path);
 347 }
 348
 349 static bool load_resize_bitmap(void)
 350 {
 351     int rc;
 352     const char * filename = NULL;
 353
 354     /* initially assume using the built-in default */
 355     puzzle_bmp_ptr = sliding_puzzle;
 356
 357     switch( picmode ){
 358         /* some modes don't even need to touch disk and trivially succeed */
 359         case PICMODE_NUMERALS:
 360         case PICMODE_DEFAULT_PICTURE:
 361         default:
 362             return(true);
 363
 364 #ifdef HAVE_ALBUMART
 365         case PICMODE_ALBUM_ART:
 366             filename = get_albumart_bmp_path();
 367             break;
 368 #endif
 369 /*
 370         case PICMODE_RANDOM:
 371             if(NULL == (filename=get_random_bmp_path()) )
 372                 filename = initial_bmp_path;
 373             break;
 374 */
 375         case PICMODE_INITIAL_PICTURE:
 376             filename = initial_bmp_path;
 377             break;
 378     };
 379
 380     if( filename != NULL )
 381     {
 382         /* if we already loaded image before, don't touch disk */
 383         if( 0 == rb->strcmp( filename, img_buf_path ) )
 384         {
 385             puzzle_bmp_ptr = (const fb_data *)img_buf;
 386             return true;
 387         }
 388
 389         struct bitmap main_bitmap;
 390         rb->memset(&main_bitmap,0,sizeof(struct bitmap));
 391         main_bitmap.data = img_buf;
 392
 393         main_bitmap.width = IMAGE_WIDTH;
 394         main_bitmap.height = IMAGE_HEIGHT;
 395
 396         rc = READ_IMAGE( filename, &main_bitmap,
 397                          img_buf_len,
 398                          FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_DITHER,
 399                          NULL);
 400         if( rc > 0 )
 401         {
 402             puzzle_bmp_ptr = (const fb_data *)img_buf;
 403             rb->strcpy( img_buf_path, filename );
 404             return true;
 405         }
 406     }
 407
 408     /* something must have failed. get_albumart_bmp_path could return
 409        NULL if albumart doesn't exist or couldn't be loaded, or
 410        read_bmp_file could have failed.  return false and caller should
 411        try the next mode (PICMODE_DEFAULT_PICTURE and PICMODE_NUMERALS will
 412        always succeed) */
 413     return false;
 414 }
 415
 416 /* draws a spot at the coordinates (x,y), range of p is 1-20 */
 417 static void draw_spot(int p, int x, int y)
 418 {
 419     int w, h;
 420
 421     if (p == HOLE_ID)
 422     {
 423 #if LCD_DEPTH==1
 424         /* the bottom-right cell of the default sliding_puzzle image is
 425            an appropriate hole graphic */
 426         rb->lcd_bitmap_part(sliding_puzzle, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 427                     ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 428                     STRIDE( SCREEN_MAIN,
 429                             BMPWIDTH_sliding_puzzle, BMPHEIGHT_sliding_puzzle),
 430                     x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 431 #else
 432         /* just draw a black rectangle */
 433         int old_fg = rb->lcd_get_foreground();
 434         rb->lcd_set_foreground(LCD_BLACK);
 435         rb->lcd_fillrect(x,y,SPOTS_WIDTH,SPOTS_HEIGHT);
 436         rb->lcd_set_foreground(LCD_WHITE);
 437         rb->lcd_drawrect(x,y,SPOTS_WIDTH,SPOTS_HEIGHT);
 438         rb->lcd_set_foreground(old_fg);
 439 #endif
 440     }
 441     else if (picmode != PICMODE_NUMERALS)
 442     {
 443         rb->lcd_bitmap_part( puzzle_bmp_ptr, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 444                      ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 445                      STRIDE( SCREEN_MAIN,
 446                              BMPWIDTH_sliding_puzzle, BMPHEIGHT_sliding_puzzle),
 447                      x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 448     } else {
 449         rb->lcd_drawrect(x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 450         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 451         rb->lcd_fillrect(x+1, y+1, SPOTS_WIDTH-2, SPOTS_HEIGHT-2);
 452         rb->lcd_set_drawmode(DRMODE_SOLID);
 453         rb->snprintf(s, sizeof(s), "%d", p);
 454         rb->lcd_setfont(num_font);
 455         rb->lcd_getstringsize(s, &w, &h);
 456         rb->lcd_putsxy(x + (SPOTS_WIDTH/2) - w / 2,
 457                        y + (SPOTS_HEIGHT/2) - h / 2, s);
 458     }
 459 }
 460
 461 /* check if the puzzle is solved */
 462 static bool puzzle_finished(void)
 463 {
 464     int i;
 465     for (i=0; i<NUM_SPOTS; i++)
 466     if (spots[i] != (i+1))
 467         return false;
 468     return true;
 469 }
 470
 471 /* move a piece in any direction */
 472 static void move_spot(int x, int y)
 473 {
 474     int i, w;
 475     spots[hole] = spots[hole-x-SPOTS_X*y];
 476     hole -= (x+SPOTS_X*y);
 477     moves++;
 478     rb->lcd_setfont(moves_font);
 479 #if LCD_WIDTH > LCD_HEIGHT
 480     rb->snprintf(s, sizeof(s), "%d", moves);
 481     w = rb->lcd_getstringsize(s, NULL, NULL);
 482     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 483                    moves_y, s);
 484 #else
 485     (void)w;
 486     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 487     rb->lcd_putsxy(3, moves_y, s);
 488 #endif
 489     for(i=1;i<=4;i++)
 490     {
 491        draw_spot(HOLE_ID,
 492                  (hole%SPOTS_X)*SPOTS_WIDTH,
 493                  (hole/SPOTS_X)*SPOTS_HEIGHT);
 494        draw_spot(spots[hole],
 495                  (hole%SPOTS_X)*SPOTS_WIDTH + (i*x*SPOTS_WIDTH)/5,
 496                  (hole/SPOTS_X)*SPOTS_HEIGHT + (i*y*SPOTS_HEIGHT)/5);
 497        rb->lcd_update();
 498        rb->sleep(HZ/50);
 499     }
 500     draw_spot(HOLE_ID,
 501               (hole%SPOTS_X)*SPOTS_WIDTH,
 502               (hole/SPOTS_X)*SPOTS_HEIGHT);
 503     draw_spot(spots[hole],
 504               ((hole%SPOTS_X)+x)*SPOTS_WIDTH,
 505               ((hole/SPOTS_X)+y)*SPOTS_HEIGHT);
 506     rb->lcd_update();
 507
 508     spots[hole] = HOLE_ID;
 509 }
 510
 511 static void draw_playfield(void)
 512 {
 513     int i, w;
 514
 515     rb->lcd_clear_display();
 516     rb->lcd_setfont(moves_font);
 517 #if LCD_WIDTH > LCD_HEIGHT
 518     rb->lcd_vline(IMAGE_WIDTH, 0, LCD_HEIGHT-1);
 519     w = rb->lcd_getstringsize("Moves", NULL, NULL);
 520     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 521                    10, "Moves");
 522     rb->snprintf(s, sizeof(s), "%d", moves);
 523     w = rb->lcd_getstringsize(s, NULL, NULL);
 524     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 525                    moves_y, s);
 526 #else
 527     (void)w;
 528     rb->lcd_hline(0, LCD_WIDTH-1, IMAGE_HEIGHT);
 529     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 530     rb->lcd_putsxy(3, moves_y, s);
 531 #endif
 532
 533     /* draw spots to the lcd */
 534     for (i=0; i<NUM_SPOTS; i++)
 535         draw_spot(spots[i], (i%SPOTS_X)*SPOTS_WIDTH, (i/SPOTS_X)*SPOTS_HEIGHT);
 536
 537     rb->lcd_update();
 538 }
 539
 540 /* initializes the puzzle */
 541 static void puzzle_init(void)
 542 {
 543     int i, r, temp, tsp[NUM_SPOTS];
 544
 545     moves = 0;
 546
 547     /* shuffle spots */
 548     for (i=NUM_SPOTS-1; i>=0; i--) {
 549         r = (rb->rand() % (i+1));
 550
 551         temp = spots[r];
 552         spots[r] = spots[i];
 553         spots[i] = temp;
 554
 555         if (spots[i]==HOLE_ID)
 556             hole = i;
 557     }
 558
 559     /* test if the puzzle is solvable */
 560     for (i=0; i<NUM_SPOTS; i++)
 561         tsp[i] = spots[i];
 562     r=0;
 563
 564     /* First, check if the problem has even or odd parity,
 565        depending on where the empty square is */
 566     if ((((SPOTS_X-1)-hole%SPOTS_X) + ((SPOTS_Y-1)-hole/SPOTS_X))%2 == 1)
 567         ++r;
 568
 569     /* Now check how many swaps we need to solve it */
 570     for (i=0; i<NUM_SPOTS-1; i++) {
 571         while (tsp[i] != (i+1)) {
 572             temp = tsp[i];
 573             tsp[i] = tsp[temp-1];
 574             tsp[temp-1] = temp;
 575             ++r;
 576         }
 577     }
 578
 579     /* if the random puzzle isn't solvable just change two spots */
 580     if (r%2 == 1) {
 581         if (spots[0]!=HOLE_ID && spots[1]!=HOLE_ID) {
 582             temp = spots[0];
 583             spots[0] = spots[1];
 584             spots[1] = temp;
 585         } else {
 586             temp = spots[2];
 587             spots[2] = spots[3];
 588             spots[3] = temp;
 589         }
 590     }
 591
 592     draw_playfield();
 593 }
 594
 595 /* the main game loop */
 596 static int puzzle_loop(void)
 597 {
 598     int button;
 599     int lastbutton = BUTTON_NONE;
 600     bool load_success;
 601
 602     puzzle_init();
 603     while(true) {
 604         button = rb->button_get(true);
 605         switch (button) {
 606 #ifdef PUZZLE_RC_QUIT
 607             case PUZZLE_RC_QUIT:
 608 #endif
 609             case PUZZLE_QUIT:
 610                 /* get out of here */
 611                 return PLUGIN_OK;
 612
 613             case PUZZLE_SHUFFLE:
 614 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 615                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 616                     break;
 617 #endif
 618                 /* mix up the pieces */
 619                 puzzle_init();
 620                 break;
 621
 622             case PUZZLE_PICTURE:
 623 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 624                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 625                     break;
 626 #endif
 627                 /* change picture */
 628                 picmode = (picmode+1)%PICMODE_LAST_XXX;
 629
 630                 /* if load_resize_bitmap fails to load bitmap, try next picmode
 631                 */
 632                 do
 633                 {
 634                     load_success = load_resize_bitmap();
 635                     if( !load_success )
 636                         picmode = (picmode+1)%PICMODE_LAST_XXX;
 637                 }
 638                 while( !load_success );
 639
 640                 /* tell the user what mode we picked in the end! */
 641                 rb->splash(HZ,picmode_descriptions[ picmode ] );
 642                 draw_playfield();
 643                 break;
 644
 645             case PUZZLE_LEFT:
 646                 if ((hole%SPOTS_X)<(SPOTS_X-1) && !puzzle_finished())
 647                     move_spot(-1, 0);
 648                 break;
 649
 650             case PUZZLE_RIGHT:
 651                 if ((hole%SPOTS_X)>0 && !puzzle_finished())
 652                     move_spot(1, 0);
 653                 break;
 654
 655             case PUZZLE_UP:
 656                 if ((hole/SPOTS_X)<(SPOTS_Y-1) && !puzzle_finished())
 657                     move_spot(0, -1);
 658                 break;
 659
 660             case PUZZLE_DOWN:
 661                 if ((hole/SPOTS_X)>0 && !puzzle_finished())
 662                     move_spot(0, 1);
 663                 break;
 664
 665             default:
 666                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 667                     return PLUGIN_USB_CONNECTED;
 668                 break;
 669         }
 670         if (button != BUTTON_NONE)
 671             lastbutton = button;
 672     }
 673 }
 674
 675 enum plugin_status plugin_start(
 676                                 const void* parameter)
 677 {
 678     int i, w, h;
 679
 680     initial_bmp_path=(const char *)parameter;
 681     img_buf = rb->plugin_get_buffer(&img_buf_len);
 682     picmode = PICMODE_INITIAL_PICTURE;
 683     img_buf_path[0] = '\0';
 684
 685     /* If launched as a viewer, just go straight to the game without
 686        bothering with the splash or instructions page */
 687     if(parameter==NULL)
 688     {
 689         /* if not launched as a viewer, use default puzzle, and show help */
 690         picmode = PICMODE_DEFAULT_PICTURE;
 691
 692         /* print title */
 693         rb->lcd_getstringsize((unsigned char *)"Sliding Puzzle", &w, &h);
 694         w = (w+1)/2;
 695         h = (h+1)/2;
 696         rb->lcd_clear_display();
 697         rb->lcd_putsxy(LCD_WIDTH/2-w, (LCD_HEIGHT/2)-h,
 698                        (unsigned char *)"Sliding Puzzle");
 699         rb->lcd_update();
 700         rb->sleep(HZ);
 701
 702         /* print instructions */
 703         rb->lcd_clear_display();
 704         rb->lcd_setfont(FONT_SYSFIXED);
 705 #if CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ARCHOS_AV300_PAD
 706         rb->lcd_putsxy(3, 18, "[OFF] to stop");
 707         rb->lcd_putsxy(3, 28, "[F1] shuffle");
 708         rb->lcd_putsxy(3, 38, "[F2] change pic");
 709 #elif CONFIG_KEYPAD == ONDIO_PAD
 710         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 711         rb->lcd_putsxy(0, 28, "[MODE..] shuffle");
 712         rb->lcd_putsxy(0, 38, "[MODE] change pic");
 713 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
 714       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 715       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 716         rb->lcd_putsxy(0, 18, "[S-MENU] to stop");
 717         rb->lcd_putsxy(0, 28, "[S-LEFT] shuffle");
 718         rb->lcd_putsxy(0, 38, "[S-RIGHT] change pic");
 719 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
 720       (CONFIG_KEYPAD == IRIVER_H300_PAD)
 721         rb->lcd_putsxy(0, 18, "[STOP] to stop");
 722         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 723         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 724 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 725         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 726         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 727         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 728 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 729         rb->lcd_putsxy(0, 18, "[POWER] to stop");
 730         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 731         rb->lcd_putsxy(0, 38, "[A] change pic");
 732 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
 733       (CONFIG_KEYPAD == SANSA_C200_PAD)
 734         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 735         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 736         rb->lcd_putsxy(0, 38, "[SELECT] change pic");
 737 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 738         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 739         rb->lcd_putsxy(0, 28, "[REW] shuffle");
 740         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 741 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 742         rb->lcd_putsxy(0, 18, "[BACK] to stop");
 743         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 744         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 745 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 746         rb->lcd_putsxy(0, 18, "[REC] to stop");
 747         rb->lcd_putsxy(0, 28, "[MODE] shuffle");
 748         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 749 #endif
 750 #ifdef HAVE_TOUCHSCREEN
 751         rb->lcd_putsxy(0, 18, PUZZLE_QUIT_TEXT " to stop");
 752         rb->lcd_putsxy(0, 28, PUZZLE_SHUFFLE_TEXT " shuffle");
 753         rb->lcd_putsxy(0, 38, PUZZLE_PICTURE_TEXT " change pic");
 754 #endif
 755 #ifdef HAVE_ALBUMART
 756         rb->lcd_putsxy(0,48,"    pic->albumart->num");
 757 #else
 758         rb->lcd_putsxy(0,48,"    pic<->num");
 759 #endif
 760         rb->lcd_update();
 761         rb->button_get_w_tmo(HZ*2);
 762     }
 763
 764     hole = INITIAL_HOLE;
 765
 766     if( !load_resize_bitmap() )
 767     {
 768         rb->lcd_clear_display();
 769         rb->splash(HZ*2,"Failed to load bitmap!");
 770         return PLUGIN_OK;
 771     }
 772
 773     /* Calculate possible font sizes and text positions */
 774     rb->lcd_setfont(FONT_UI);
 775     rb->lcd_getstringsize("15", &w, &h);
 776     if ((w > (SPOTS_WIDTH-2)) || (h > (SPOTS_HEIGHT-2)))
 777         num_font = FONT_SYSFIXED;
 778
 779 #if LCD_WIDTH > LCD_HEIGHT
 780     rb->lcd_getstringsize("Moves", &w, &h);
 781     if (w > (LCD_WIDTH-IMAGE_WIDTH-1))
 782         moves_font = FONT_SYSFIXED;
 783     rb->lcd_setfont(moves_font);
 784     rb->lcd_getstringsize("Moves", &w, &h);
 785     moves_y = 10 + h;
 786 #else
 787     rb->lcd_getstringsize("Moves: 999", &w, &h);
 788     if ((w > LCD_WIDTH) || (h > (LCD_HEIGHT-IMAGE_HEIGHT-1)))
 789         moves_font = FONT_SYSFIXED;
 790     rb->lcd_setfont(moves_font);
 791     rb->lcd_getstringsize("Moves: 999", &w, &h);
 792     moves_y = (IMAGE_HEIGHT+1+(LCD_HEIGHT-IMAGE_HEIGHT-1)/2) - h / 2;
 793 #endif
 794     for (i=0; i<NUM_SPOTS; i++)
 795         spots[i]=(i+1);
 796
 797 #ifdef HAVE_LCD_COLOR
 798     rb->lcd_set_background(LCD_BLACK);
 799     rb->lcd_set_foreground(LCD_WHITE);
 800     rb->lcd_set_backdrop(NULL);
 801 #elif LCD_DEPTH > 1
 802     rb->lcd_set_background(LCD_WHITE);
 803     rb->lcd_set_foreground(LCD_BLACK);
 804     rb->lcd_set_backdrop(NULL);
 805 #endif
 806
 807     draw_playfield();
 808     rb->sleep(HZ*2);
 809
 810     return puzzle_loop();
 811 }
 812
 813 #endif