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 == COWOND2_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 == ONDAVX747_PAD || \
 192 CONFIG_KEYPAD == ONDAVX777_PAD || \
 193 CONFIG_KEYPAD == MROBE500_PAD
 194 #define PUZZLE_QUIT BUTTON_POWER
 195 #define PUZZLE_QUIT_TEXT "[POWER]"
 196
 197 #elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
 198 #define PUZZLE_QUIT    BUTTON_REC
 199 #define PUZZLE_LEFT    BUTTON_LEFT
 200 #define PUZZLE_RIGHT   BUTTON_RIGHT
 201 #define PUZZLE_UP      BUTTON_UP
 202 #define PUZZLE_DOWN    BUTTON_DOWN
 203 #define PUZZLE_SHUFFLE BUTTON_REW
 204 #define PUZZLE_PICTURE BUTTON_PLAY
 205
 206 #else
 207 #error No keymap defined!
 208 #endif
 209
 210 #ifdef HAVE_TOUCHSCREEN
 211 #ifndef PUZZLE_QUIT
 212 #define PUZZLE_QUIT    BUTTON_TOPLEFT
 213 #endif
 214 #ifndef PUZZLE_LEFT
 215 #define PUZZLE_LEFT    BUTTON_MIDLEFT
 216 #endif
 217 #ifndef PUZZLE_RIGHT
 218 #define PUZZLE_RIGHT   BUTTON_MIDRIGHT
 219 #endif
 220 #ifndef PUZZLE_UP
 221 #define PUZZLE_UP      BUTTON_TOPMIDDLE
 222 #endif
 223 #ifndef PUZZLE_DOWN
 224 #define PUZZLE_DOWN    BUTTON_BOTTOMMIDDLE
 225 #endif
 226 #ifndef PUZZLE_SHUFFLE
 227 #define PUZZLE_SHUFFLE BUTTON_BOTTOMLEFT
 228 #endif
 229 #ifndef PUZZLE_PICTURE
 230 #define PUZZLE_PICTURE BUTTON_CENTER
 231 #endif
 232 #ifndef PUZZLE_QUIT_TEXT
 233 #define PUZZLE_QUIT_TEXT "[TOPLEFT]"
 234 #endif
 235 #ifndef PUZZLE_SHUFFLE_TEXT
 236 #define PUZZLE_SHUFFLE_TEXT "[BOTTOMLEFT]"
 237 #endif
 238 #ifndef PUZZLE_PICTURE_TEXT
 239 #define PUZZLE_PICTURE_TEXT "[CENTER]"
 240 #endif
 241 #endif
 242
 243 #ifdef HAVE_ALBUMART
 244 #include "lib/read_image.h"
 245 #define READ_IMAGE read_image_file
 246 #else
 247 #define READ_IMAGE rb->read_bmp_file
 248 #endif
 249
 250 #include "pluginbitmaps/sliding_puzzle.h"
 251 #define IMAGE_WIDTH BMPWIDTH_sliding_puzzle
 252 #define IMAGE_HEIGHT BMPHEIGHT_sliding_puzzle
 253 #define IMAGE_SIZE IMAGE_WIDTH
 254
 255 /* use a square image, (the default Archos bitmap looks square on its display)
 256    Puzzle image dimension is min(lcd_height,lcd_width)
 257    4x4 is more convenient for square puzzles
 258    Note: sliding_puzzle.bmp should be evenly divisible by SPOTS_X
 259    and SPOTS_Y, otherwise lcd_bitmap_part stride won't be correct */
 260 #define SPOTS_X 4
 261 #define SPOTS_Y 4
 262 #define SPOTS_WIDTH  (IMAGE_WIDTH / SPOTS_X)
 263 #define SPOTS_HEIGHT (IMAGE_HEIGHT / SPOTS_Y)
 264 #define NUM_SPOTS    (SPOTS_X*SPOTS_Y)
 265 #define HOLE_ID      (NUM_SPOTS)
 266 #define INITIAL_HOLE (HOLE_ID-1)
 267
 268 enum picmodes
 269 {
 270     PICMODE_NUMERALS = 0,
 271     PICMODE_INITIAL_PICTURE,
 272     PICMODE_DEFAULT_PICTURE,
 273 #ifdef HAVE_ALBUMART
 274     PICMODE_ALBUM_ART,
 275 #endif
 276 //    PICMODE_RANDOM,
 277     PICMODE_LAST_XXX /* placeholder */
 278 };
 279
 280 static const char* const picmode_descriptions[] = {
 281     "Numerals",
 282     "Viewer Picture",
 283     "Default Picture",
 284 #ifdef HAVE_ALBUMART
 285     "Album Art",
 286 #endif
 287     "Shouldn't Get Here",
 288 };
 289
 290 static int spots[NUM_SPOTS];
 291 static int hole = INITIAL_HOLE, moves;
 292 static unsigned char s[32];
 293 static enum picmodes picmode = PICMODE_INITIAL_PICTURE;
 294 static int num_font = FONT_UI;
 295 static int moves_font = FONT_UI;
 296 static int moves_y = 0;
 297
 298 static unsigned char *img_buf;
 299 static size_t img_buf_len;
 300 #ifdef HAVE_ALBUMART
 301 static char albumart_path[MAX_PATH+1];
 302 #endif
 303 static char img_buf_path[MAX_PATH+1];
 304
 305 static const fb_data * puzzle_bmp_ptr;
 306 /* initial_bmp_path points to selected bitmap if this game is launched
 307    as a viewer for a .bmp file, or NULL if game is launched regular way */
 308 static const char * initial_bmp_path=NULL;
 309
 310 #ifdef HAVE_ALBUMART
 311 const char * get_albumart_bmp_path(void)
 312 {
 313     struct mp3entry* track = rb->audio_current_track();
 314
 315     if (!track || !track->path || track->path[0] == '\0')
 316         return NULL;
 317
 318     if (!rb->search_albumart_files(track, "", albumart_path, MAX_PATH ) )
 319         return NULL;
 320
 321     albumart_path[ MAX_PATH ] = '\0';
 322     return albumart_path;
 323 }
 324 #endif
 325
 326 const char * get_random_bmp_path(void)
 327 {
 328     return(initial_bmp_path);
 329 }
 330
 331 static bool load_resize_bitmap(void)
 332 {
 333     int rc;
 334     const char * filename = NULL;
 335
 336     /* initially assume using the built-in default */
 337     puzzle_bmp_ptr = sliding_puzzle;
 338
 339     switch( picmode ){
 340         /* some modes don't even need to touch disk and trivially succeed */
 341         case PICMODE_NUMERALS:
 342         case PICMODE_DEFAULT_PICTURE:
 343         default:
 344             return(true);
 345
 346 #ifdef HAVE_ALBUMART
 347         case PICMODE_ALBUM_ART:
 348             filename = get_albumart_bmp_path();
 349             break;
 350 #endif
 351 /*
 352         case PICMODE_RANDOM:
 353             if(NULL == (filename=get_random_bmp_path()) )
 354                 filename = initial_bmp_path;
 355             break;
 356 */
 357         case PICMODE_INITIAL_PICTURE:
 358             filename = initial_bmp_path;
 359             break;
 360     };
 361
 362     if( filename != NULL )
 363     {
 364         /* if we already loaded image before, don't touch disk */
 365         if( 0 == rb->strcmp( filename, img_buf_path ) )
 366         {
 367             puzzle_bmp_ptr = (const fb_data *)img_buf;
 368             return true;
 369         }
 370
 371         struct bitmap main_bitmap;
 372         rb->memset(&main_bitmap,0,sizeof(struct bitmap));
 373         main_bitmap.data = img_buf;
 374
 375         main_bitmap.width = IMAGE_WIDTH;
 376         main_bitmap.height = IMAGE_HEIGHT;
 377
 378         rc = READ_IMAGE( filename, &main_bitmap,
 379                          img_buf_len,
 380                          FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_DITHER,
 381                          NULL);
 382         if( rc > 0 )
 383         {
 384             puzzle_bmp_ptr = (const fb_data *)img_buf;
 385             rb->strcpy( img_buf_path, filename );
 386             return true;
 387         }
 388     }
 389
 390     /* something must have failed. get_albumart_bmp_path could return
 391        NULL if albumart doesn't exist or couldn't be loaded, or
 392        read_bmp_file could have failed.  return false and caller should
 393        try the next mode (PICMODE_DEFAULT_PICTURE and PICMODE_NUMERALS will
 394        always succeed) */
 395     return false;
 396 }
 397
 398 /* draws a spot at the coordinates (x,y), range of p is 1-20 */
 399 static void draw_spot(int p, int x, int y)
 400 {
 401     int w, h;
 402
 403     if (p == HOLE_ID)
 404     {
 405 #if LCD_DEPTH==1
 406         /* the bottom-right cell of the default sliding_puzzle image is
 407            an appropriate hole graphic */
 408         rb->lcd_bitmap_part(sliding_puzzle, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 409                     ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 410                     STRIDE(BMPWIDTH_sliding_puzzle, BMPHEIGHT_sliding_puzzle),
 411                     x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 412 #else
 413         /* just draw a black rectangle */
 414         int old_fg = rb->lcd_get_foreground();
 415         rb->lcd_set_foreground(LCD_BLACK);
 416         rb->lcd_fillrect(x,y,SPOTS_WIDTH,SPOTS_HEIGHT);
 417         rb->lcd_set_foreground(old_fg);
 418 #endif
 419     }
 420     else if (picmode != PICMODE_NUMERALS)
 421     {
 422         rb->lcd_bitmap_part( puzzle_bmp_ptr, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 423                      ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 424                      STRIDE(BMPWIDTH_sliding_puzzle, BMPHEIGHT_sliding_puzzle),
 425                      x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 426     } else {
 427         rb->lcd_drawrect(x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 428         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 429         rb->lcd_fillrect(x+1, y+1, SPOTS_WIDTH-2, SPOTS_HEIGHT-2);
 430         rb->lcd_set_drawmode(DRMODE_SOLID);
 431         rb->snprintf(s, sizeof(s), "%d", p);
 432         rb->lcd_setfont(num_font);
 433         rb->lcd_getstringsize(s, &w, &h);
 434         rb->lcd_putsxy(x + (SPOTS_WIDTH/2) - w / 2,
 435                        y + (SPOTS_HEIGHT/2) - h / 2, s);
 436     }
 437 }
 438
 439 /* check if the puzzle is solved */
 440 static bool puzzle_finished(void)
 441 {
 442     int i;
 443     for (i=0; i<NUM_SPOTS; i++)
 444     if (spots[i] != (i+1))
 445         return false;
 446     return true;
 447 }
 448
 449 /* move a piece in any direction */
 450 static void move_spot(int x, int y)
 451 {
 452     int i, w;
 453     spots[hole] = spots[hole-x-SPOTS_X*y];
 454     hole -= (x+SPOTS_X*y);
 455     moves++;
 456     rb->lcd_setfont(moves_font);
 457 #if LCD_WIDTH > LCD_HEIGHT
 458     rb->snprintf(s, sizeof(s), "%d", moves);
 459     w = rb->lcd_getstringsize(s, NULL, NULL);
 460     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 461                    moves_y, s);
 462 #else
 463     (void)w;
 464     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 465     rb->lcd_putsxy(3, moves_y, s);
 466 #endif
 467     for(i=1;i<=4;i++)
 468     {
 469        draw_spot(HOLE_ID,
 470                  (hole%SPOTS_X)*SPOTS_WIDTH,
 471                  (hole/SPOTS_X)*SPOTS_HEIGHT);
 472        draw_spot(spots[hole],
 473                  (hole%SPOTS_X)*SPOTS_WIDTH + (i*x*SPOTS_WIDTH)/5,
 474                  (hole/SPOTS_X)*SPOTS_HEIGHT + (i*y*SPOTS_HEIGHT)/5);
 475        rb->lcd_update();
 476        rb->sleep(HZ/50);
 477     }
 478     draw_spot(HOLE_ID,
 479               (hole%SPOTS_X)*SPOTS_WIDTH,
 480               (hole/SPOTS_X)*SPOTS_HEIGHT);
 481     draw_spot(spots[hole],
 482               ((hole%SPOTS_X)+x)*SPOTS_WIDTH,
 483               ((hole/SPOTS_X)+y)*SPOTS_HEIGHT);
 484     rb->lcd_update();
 485
 486     spots[hole] = HOLE_ID;
 487 }
 488
 489 static void draw_playfield(void)
 490 {
 491     int i, w;
 492
 493     rb->lcd_clear_display();
 494     rb->lcd_setfont(moves_font);
 495 #if LCD_WIDTH > LCD_HEIGHT
 496     rb->lcd_vline(IMAGE_WIDTH, 0, LCD_HEIGHT-1);
 497     w = rb->lcd_getstringsize("Moves", NULL, NULL);
 498     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 499                    10, "Moves");
 500     rb->snprintf(s, sizeof(s), "%d", moves);
 501     w = rb->lcd_getstringsize(s, NULL, NULL);
 502     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 503                    moves_y, s);
 504 #else
 505     (void)w;
 506     rb->lcd_hline(0, LCD_WIDTH-1, IMAGE_HEIGHT);
 507     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 508     rb->lcd_putsxy(3, moves_y, s);
 509 #endif
 510
 511     /* draw spots to the lcd */
 512     for (i=0; i<NUM_SPOTS; i++)
 513         draw_spot(spots[i], (i%SPOTS_X)*SPOTS_WIDTH, (i/SPOTS_X)*SPOTS_HEIGHT);
 514
 515     rb->lcd_update();
 516 }
 517
 518 /* initializes the puzzle */
 519 static void puzzle_init(void)
 520 {
 521     int i, r, temp, tsp[NUM_SPOTS];
 522
 523     moves = 0;
 524
 525     /* shuffle spots */
 526     for (i=NUM_SPOTS-1; i>=0; i--) {
 527         r = (rb->rand() % (i+1));
 528
 529         temp = spots[r];
 530         spots[r] = spots[i];
 531         spots[i] = temp;
 532
 533         if (spots[i]==HOLE_ID)
 534             hole = i;
 535     }
 536
 537     /* test if the puzzle is solvable */
 538     for (i=0; i<NUM_SPOTS; i++)
 539         tsp[i] = spots[i];
 540     r=0;
 541
 542     /* First, check if the problem has even or odd parity,
 543        depending on where the empty square is */
 544     if ((((SPOTS_X-1)-hole%SPOTS_X) + ((SPOTS_Y-1)-hole/SPOTS_X))%2 == 1)
 545         ++r;
 546
 547     /* Now check how many swaps we need to solve it */
 548     for (i=0; i<NUM_SPOTS-1; i++) {
 549         while (tsp[i] != (i+1)) {
 550             temp = tsp[i];
 551             tsp[i] = tsp[temp-1];
 552             tsp[temp-1] = temp;
 553             ++r;
 554         }
 555     }
 556
 557     /* if the random puzzle isn't solvable just change two spots */
 558     if (r%2 == 1) {
 559         if (spots[0]!=HOLE_ID && spots[1]!=HOLE_ID) {
 560             temp = spots[0];
 561             spots[0] = spots[1];
 562             spots[1] = temp;
 563         } else {
 564             temp = spots[2];
 565             spots[2] = spots[3];
 566             spots[3] = temp;
 567         }
 568     }
 569
 570     draw_playfield();
 571 }
 572
 573 /* the main game loop */
 574 static int puzzle_loop(void)
 575 {
 576     int button;
 577     int lastbutton = BUTTON_NONE;
 578     bool load_success;
 579
 580     puzzle_init();
 581     while(true) {
 582         button = rb->button_get(true);
 583         switch (button) {
 584 #ifdef PUZZLE_RC_QUIT
 585             case PUZZLE_RC_QUIT:
 586 #endif
 587             case PUZZLE_QUIT:
 588                 /* get out of here */
 589                 return PLUGIN_OK;
 590
 591             case PUZZLE_SHUFFLE:
 592 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 593                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 594                     break;
 595 #endif
 596                 /* mix up the pieces */
 597                 puzzle_init();
 598                 break;
 599
 600             case PUZZLE_PICTURE:
 601 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 602                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 603                     break;
 604 #endif
 605                 /* change picture */
 606                 picmode = (picmode+1)%PICMODE_LAST_XXX;
 607
 608                 /* if load_resize_bitmap fails to load bitmap, try next picmode
 609                 */
 610                 do
 611                 {
 612                     load_success = load_resize_bitmap();
 613                     if( !load_success )
 614                         picmode = (picmode+1)%PICMODE_LAST_XXX;
 615                 }
 616                 while( !load_success );
 617
 618                 /* tell the user what mode we picked in the end! */
 619                 rb->splash(HZ,picmode_descriptions[ picmode ] );
 620                 draw_playfield();
 621                 break;
 622
 623             case PUZZLE_LEFT:
 624                 if ((hole%SPOTS_X)<(SPOTS_X-1) && !puzzle_finished())
 625                     move_spot(-1, 0);
 626                 break;
 627
 628             case PUZZLE_RIGHT:
 629                 if ((hole%SPOTS_X)>0 && !puzzle_finished())
 630                     move_spot(1, 0);
 631                 break;
 632
 633             case PUZZLE_UP:
 634                 if ((hole/SPOTS_X)<(SPOTS_Y-1) && !puzzle_finished())
 635                     move_spot(0, -1);
 636                 break;
 637
 638             case PUZZLE_DOWN:
 639                 if ((hole/SPOTS_X)>0 && !puzzle_finished())
 640                     move_spot(0, 1);
 641                 break;
 642
 643             default:
 644                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 645                     return PLUGIN_USB_CONNECTED;
 646                 break;
 647         }
 648         if (button != BUTTON_NONE)
 649             lastbutton = button;
 650     }
 651 }
 652
 653 enum plugin_status plugin_start(
 654                                 const void* parameter)
 655 {
 656     int i, w, h;
 657
 658     initial_bmp_path=(const char *)parameter;
 659     img_buf = rb->plugin_get_buffer(&img_buf_len);
 660     picmode = PICMODE_INITIAL_PICTURE;
 661     img_buf_path[0] = '\0';
 662
 663     /* If launched as a viewer, just go straight to the game without
 664        bothering with the splash or instructions page */
 665     if(parameter==NULL)
 666     {
 667         /* if not launched as a viewer, use default puzzle, and show help */
 668         picmode = PICMODE_DEFAULT_PICTURE;
 669
 670         /* print title */
 671         rb->lcd_getstringsize((unsigned char *)"Sliding Puzzle", &w, &h);
 672         w = (w+1)/2;
 673         h = (h+1)/2;
 674         rb->lcd_clear_display();
 675         rb->lcd_putsxy(LCD_WIDTH/2-w, (LCD_HEIGHT/2)-h,
 676                        (unsigned char *)"Sliding Puzzle");
 677         rb->lcd_update();
 678         rb->sleep(HZ);
 679
 680         /* print instructions */
 681         rb->lcd_clear_display();
 682         rb->lcd_setfont(FONT_SYSFIXED);
 683 #if CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ARCHOS_AV300_PAD
 684         rb->lcd_putsxy(3, 18, "[OFF] to stop");
 685         rb->lcd_putsxy(3, 28, "[F1] shuffle");
 686         rb->lcd_putsxy(3, 38, "[F2] change pic");
 687 #elif CONFIG_KEYPAD == ONDIO_PAD
 688         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 689         rb->lcd_putsxy(0, 28, "[MODE..] shuffle");
 690         rb->lcd_putsxy(0, 38, "[MODE] change pic");
 691 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
 692       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 693       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 694         rb->lcd_putsxy(0, 18, "[S-MENU] to stop");
 695         rb->lcd_putsxy(0, 28, "[S-LEFT] shuffle");
 696         rb->lcd_putsxy(0, 38, "[S-RIGHT] change pic");
 697 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
 698       (CONFIG_KEYPAD == IRIVER_H300_PAD)
 699         rb->lcd_putsxy(0, 18, "[STOP] to stop");
 700         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 701         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 702 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 703         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 704         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 705         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 706 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 707         rb->lcd_putsxy(0, 18, "[POWER] to stop");
 708         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 709         rb->lcd_putsxy(0, 38, "[A] change pic");
 710 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
 711       (CONFIG_KEYPAD == SANSA_C200_PAD)
 712         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 713         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 714         rb->lcd_putsxy(0, 38, "[SELECT] change pic");
 715 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 716         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 717         rb->lcd_putsxy(0, 28, "[REW] shuffle");
 718         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 719 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 720         rb->lcd_putsxy(0, 18, "[BACK] to stop");
 721         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 722         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 723 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 724         rb->lcd_putsxy(0, 18, "[REC] to stop");
 725         rb->lcd_putsxy(0, 28, "[MODE] shuffle");
 726         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 727 #endif
 728 #ifdef HAVE_TOUCHSCREEN
 729         rb->lcd_putsxy(0, 18, PUZZLE_QUIT_TEXT " to stop");
 730         rb->lcd_putsxy(0, 28, PUZZLE_SHUFFLE_TEXT " shuffle");
 731         rb->lcd_putsxy(0, 38, PUZZLE_PICTURE_TEXT " change pic");
 732 #endif
 733 #ifdef HAVE_ALBUMART
 734         rb->lcd_putsxy(0,48,"    pic->albumart->num");
 735 #else
 736         rb->lcd_putsxy(0,48,"    pic<->num");
 737 #endif
 738         rb->lcd_update();
 739         rb->button_get_w_tmo(HZ*2);
 740     }
 741
 742     hole = INITIAL_HOLE;
 743
 744     if( !load_resize_bitmap() )
 745     {
 746         rb->lcd_clear_display();
 747         rb->splash(HZ*2,"Failed to load bitmap!");
 748         return PLUGIN_OK;
 749     }
 750
 751     /* Calculate possible font sizes and text positions */
 752     rb->lcd_setfont(FONT_UI);
 753     rb->lcd_getstringsize("15", &w, &h);
 754     if ((w > (SPOTS_WIDTH-2)) || (h > (SPOTS_HEIGHT-2)))
 755         num_font = FONT_SYSFIXED;
 756
 757 #if LCD_WIDTH > LCD_HEIGHT
 758     rb->lcd_getstringsize("Moves", &w, &h);
 759     if (w > (LCD_WIDTH-IMAGE_WIDTH-1))
 760         moves_font = FONT_SYSFIXED;
 761     rb->lcd_setfont(moves_font);
 762     rb->lcd_getstringsize("Moves", &w, &h);
 763     moves_y = 10 + h;
 764 #else
 765     rb->lcd_getstringsize("Moves: 999", &w, &h);
 766     if ((w > LCD_WIDTH) || (h > (LCD_HEIGHT-IMAGE_HEIGHT-1)))
 767         moves_font = FONT_SYSFIXED;
 768     rb->lcd_setfont(moves_font);
 769     rb->lcd_getstringsize("Moves: 999", &w, &h);
 770     moves_y = (IMAGE_HEIGHT+1+(LCD_HEIGHT-IMAGE_HEIGHT-1)/2) - h / 2;
 771 #endif
 772     for (i=0; i<NUM_SPOTS; i++)
 773         spots[i]=(i+1);
 774
 775 #ifdef HAVE_LCD_COLOR
 776     rb->lcd_set_background(LCD_BLACK);
 777     rb->lcd_set_foreground(LCD_WHITE);
 778     rb->lcd_set_backdrop(NULL);
 779 #elif LCD_DEPTH > 1
 780     rb->lcd_set_background(LCD_WHITE);
 781     rb->lcd_set_foreground(LCD_BLACK);
 782     rb->lcd_set_backdrop(NULL);
 783 #endif
 784
 785     draw_playfield();
 786     rb->sleep(HZ*2);
 787
 788     return puzzle_loop();
 789 }
 790
 791 #endif