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 #define PUZZLE_QUIT BUTTON_POWER
 193 #define PUZZLE_QUIT_TEXT "[POWER]"
 194
 195 #else
 196 #error No keymap defined!
 197 #endif
 198
 199 #ifdef HAVE_TOUCHSCREEN
 200 #ifndef PUZZLE_QUIT
 201 #define PUZZLE_QUIT    BUTTON_TOPLEFT
 202 #endif
 203 #ifndef PUZZLE_LEFT
 204 #define PUZZLE_LEFT    BUTTON_MIDLEFT
 205 #endif
 206 #ifndef PUZZLE_RIGHT
 207 #define PUZZLE_RIGHT   BUTTON_MIDRIGHT
 208 #endif
 209 #ifndef PUZZLE_UP
 210 #define PUZZLE_UP      BUTTON_TOPMIDDLE
 211 #endif
 212 #ifndef PUZZLE_DOWN
 213 #define PUZZLE_DOWN    BUTTON_BOTTOMMIDDLE
 214 #endif
 215 #ifndef PUZZLE_SHUFFLE
 216 #define PUZZLE_SHUFFLE BUTTON_BOTTOMLEFT
 217 #endif
 218 #ifndef PUZZLE_PICTURE
 219 #define PUZZLE_PICTURE BUTTON_CENTER
 220 #endif
 221 #ifndef PUZZLE_QUIT_TEXT
 222 #define PUZZLE_QUIT_TEXT "[TOPLEFT]"
 223 #endif
 224 #ifndef PUZZLE_SHUFFLE_TEXT
 225 #define PUZZLE_SHUFFLE_TEXT "[BOTTOMLEFT]"
 226 #endif
 227 #ifndef PUZZLE_PICTURE_TEXT
 228 #define PUZZLE_PICTURE_TEXT "[CENTER]"
 229 #endif
 230 #endif
 231
 232 #include "pluginbitmaps/sliding_puzzle.h"
 233 #define IMAGE_WIDTH BMPWIDTH_sliding_puzzle
 234 #define IMAGE_HEIGHT BMPHEIGHT_sliding_puzzle
 235 #define IMAGE_SIZE IMAGE_WIDTH
 236
 237 /* use a square image, (the default Archos bitmap looks square on its display)
 238    Puzzle image dimension is min(lcd_height,lcd_width)
 239    4x4 is more convenient for square puzzles
 240    Note: sliding_puzzle.bmp should be evenly divisible by SPOTS_X
 241    and SPOTS_Y, otherwise lcd_bitmap_part stride won't be correct */
 242 #define SPOTS_X 4
 243 #define SPOTS_Y 4
 244 #define SPOTS_WIDTH  (IMAGE_WIDTH / SPOTS_X)
 245 #define SPOTS_HEIGHT (IMAGE_HEIGHT / SPOTS_Y)
 246 #define NUM_SPOTS    (SPOTS_X*SPOTS_Y)
 247 #define HOLE_ID      (NUM_SPOTS)
 248 #define INITIAL_HOLE (HOLE_ID-1)
 249
 250 enum picmodes
 251 {
 252     PICMODE_NUMERALS = 0,
 253     PICMODE_INITIAL_PICTURE,
 254     PICMODE_DEFAULT_PICTURE,
 255 #ifdef HAVE_ALBUMART
 256     PICMODE_ALBUM_ART,
 257 #endif
 258 //    PICMODE_RANDOM,
 259     PICMODE_LAST_XXX /* placeholder */
 260 };
 261
 262 static const char* const picmode_descriptions[] = {
 263     "Numerals",
 264     "Viewer Picture",
 265     "Default Picture",
 266 #ifdef HAVE_ALBUMART
 267     "Album Art",
 268 #endif
 269     "Shouldn't Get Here",
 270 };
 271
 272 static int spots[NUM_SPOTS];
 273 static int hole = INITIAL_HOLE, moves;
 274 static unsigned char s[32];
 275 static enum picmodes picmode = PICMODE_INITIAL_PICTURE;
 276 static int num_font = FONT_UI;
 277 static int moves_font = FONT_UI;
 278 static int moves_y = 0;
 279
 280 static unsigned char img_buf
 281     [BM_SCALED_SIZE(IMAGE_WIDTH,IMAGE_HEIGHT,FORMAT_NATIVE,0)]
 282     __attribute__ ((aligned(16)));
 283 #ifdef HAVE_ALBUMART
 284 static char albumart_path[MAX_PATH+1];
 285 #endif
 286 static char img_buf_path[MAX_PATH+1];
 287
 288 static const fb_data * puzzle_bmp_ptr;
 289 /* initial_bmp_path points to selected bitmap if this game is launched
 290    as a viewer for a .bmp file, or NULL if game is launched regular way */
 291 static const char * initial_bmp_path=NULL;
 292
 293 #ifdef HAVE_ALBUMART
 294 const char * get_albumart_bmp_path(void)
 295 {
 296     struct mp3entry* track = rb->audio_current_track();
 297
 298     if (!track || !track->path || track->path[0] == '\0')
 299         return NULL;
 300
 301     if (!rb->search_albumart_files(track, "", albumart_path, MAX_PATH ) )
 302         return NULL;
 303
 304     albumart_path[ MAX_PATH ] = '\0';
 305     return albumart_path;
 306 }
 307 #endif
 308
 309 const char * get_random_bmp_path(void)
 310 {
 311     return(initial_bmp_path);
 312 }
 313
 314 static bool load_resize_bitmap(void)
 315 {
 316     int rc;
 317     const char * filename = NULL;
 318
 319     /* initially assume using the built-in default */
 320     puzzle_bmp_ptr = sliding_puzzle;
 321
 322     switch( picmode ){
 323         /* some modes don't even need to touch disk and trivially succeed */
 324         case PICMODE_NUMERALS:
 325         case PICMODE_DEFAULT_PICTURE:
 326         default:
 327             return(true);
 328
 329 #ifdef HAVE_ALBUMART
 330         case PICMODE_ALBUM_ART:
 331             filename = get_albumart_bmp_path();
 332             break;
 333 #endif
 334 /*
 335         case PICMODE_RANDOM:
 336             if(NULL == (filename=get_random_bmp_path()) )
 337                 filename = initial_bmp_path;
 338             break;
 339 */
 340         case PICMODE_INITIAL_PICTURE:
 341             filename = initial_bmp_path;
 342             break;
 343     };
 344
 345     if( filename != NULL )
 346     {
 347         /* if we already loaded image before, don't touch disk */
 348         if( 0 == rb->strcmp( filename, img_buf_path ) )
 349         {
 350             puzzle_bmp_ptr = (const fb_data *)img_buf;
 351             return true;
 352         }
 353
 354         struct bitmap main_bitmap;
 355         rb->memset(&main_bitmap,0,sizeof(struct bitmap));
 356         main_bitmap.data = img_buf;
 357
 358         main_bitmap.width = IMAGE_WIDTH;
 359         main_bitmap.height = IMAGE_HEIGHT;
 360
 361         rc = rb->read_bmp_file( filename, &main_bitmap,
 362                                 sizeof(img_buf),
 363                                 FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_DITHER,
 364                                 NULL);
 365         if( rc > 0 )
 366         {
 367             puzzle_bmp_ptr = (const fb_data *)img_buf;
 368             rb->strcpy( img_buf_path, filename );
 369             return true;
 370         }
 371     }
 372
 373     /* something must have failed. get_albumart_bmp_path could return
 374        NULL if albumart doesn't exist or couldn't be loaded, or
 375        read_bmp_file could have failed.  return false and caller should
 376        try the next mode (PICMODE_DEFAULT_PICTURE and PICMODE_NUMERALS will
 377        always succeed) */
 378     return false;
 379 }
 380
 381 /* draws a spot at the coordinates (x,y), range of p is 1-20 */
 382 static void draw_spot(int p, int x, int y)
 383 {
 384     int w, h;
 385
 386     if (p == HOLE_ID)
 387     {
 388 #if LCD_DEPTH==1
 389         /* the bottom-right cell of the default sliding_puzzle image is
 390            an appropriate hole graphic */
 391         rb->lcd_bitmap_part(sliding_puzzle, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 392                                  ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 393                                 IMAGE_WIDTH, x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 394 #else
 395         /* just draw a black rectangle */
 396         int old_fg = rb->lcd_get_foreground();
 397         rb->lcd_set_foreground(LCD_BLACK);
 398         rb->lcd_fillrect(x,y,SPOTS_WIDTH,SPOTS_HEIGHT);
 399         rb->lcd_set_foreground(old_fg);
 400 #endif
 401     }
 402     else if (picmode != PICMODE_NUMERALS)
 403     {
 404         rb->lcd_bitmap_part( puzzle_bmp_ptr, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 405                              ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 406                              IMAGE_WIDTH, x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 407     } else {
 408         rb->lcd_drawrect(x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 409         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 410         rb->lcd_fillrect(x+1, y+1, SPOTS_WIDTH-2, SPOTS_HEIGHT-2);
 411         rb->lcd_set_drawmode(DRMODE_SOLID);
 412         rb->snprintf(s, sizeof(s), "%d", p);
 413         rb->lcd_setfont(num_font);
 414         rb->lcd_getstringsize(s, &w, &h);
 415         rb->lcd_putsxy(x + (SPOTS_WIDTH/2) - w / 2,
 416                        y + (SPOTS_HEIGHT/2) - h / 2, s);
 417     }
 418 }
 419
 420 /* check if the puzzle is solved */
 421 static bool puzzle_finished(void)
 422 {
 423     int i;
 424     for (i=0; i<NUM_SPOTS; i++)
 425     if (spots[i] != (i+1))
 426         return false;
 427     return true;
 428 }
 429
 430 /* move a piece in any direction */
 431 static void move_spot(int x, int y)
 432 {
 433     int i, w;
 434     spots[hole] = spots[hole-x-SPOTS_X*y];
 435     hole -= (x+SPOTS_X*y);
 436     moves++;
 437     rb->lcd_setfont(moves_font);
 438 #if LCD_WIDTH > LCD_HEIGHT
 439     rb->snprintf(s, sizeof(s), "%d", moves);
 440     w = rb->lcd_getstringsize(s, NULL, NULL);
 441     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 442                    moves_y, s);
 443 #else
 444     (void)w;
 445     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 446     rb->lcd_putsxy(3, moves_y, s);
 447 #endif
 448     for(i=1;i<=4;i++)
 449     {
 450        draw_spot(HOLE_ID,
 451                  (hole%SPOTS_X)*SPOTS_WIDTH,
 452                  (hole/SPOTS_X)*SPOTS_HEIGHT);
 453        draw_spot(spots[hole],
 454                  (hole%SPOTS_X)*SPOTS_WIDTH + (i*x*SPOTS_WIDTH)/5,
 455                  (hole/SPOTS_X)*SPOTS_HEIGHT + (i*y*SPOTS_HEIGHT)/5);
 456        rb->lcd_update();
 457        rb->sleep(HZ/50);
 458     }
 459     draw_spot(HOLE_ID,
 460               (hole%SPOTS_X)*SPOTS_WIDTH,
 461               (hole/SPOTS_X)*SPOTS_HEIGHT);
 462     draw_spot(spots[hole],
 463               ((hole%SPOTS_X)+x)*SPOTS_WIDTH,
 464               ((hole/SPOTS_X)+y)*SPOTS_HEIGHT);
 465     rb->lcd_update();
 466
 467     spots[hole] = HOLE_ID;
 468 }
 469
 470 static void draw_playfield(void)
 471 {
 472     int i, w;
 473
 474     rb->lcd_clear_display();
 475     rb->lcd_setfont(moves_font);
 476 #if LCD_WIDTH > LCD_HEIGHT
 477     rb->lcd_vline(IMAGE_WIDTH, 0, LCD_HEIGHT-1);
 478     w = rb->lcd_getstringsize("Moves", NULL, NULL);
 479     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 480                    10, "Moves");
 481     rb->snprintf(s, sizeof(s), "%d", moves);
 482     w = rb->lcd_getstringsize(s, NULL, NULL);
 483     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 484                    moves_y, s);
 485 #else
 486     (void)w;
 487     rb->lcd_hline(0, LCD_WIDTH-1, IMAGE_HEIGHT);
 488     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 489     rb->lcd_putsxy(3, moves_y, s);
 490 #endif
 491
 492     /* draw spots to the lcd */
 493     for (i=0; i<NUM_SPOTS; i++)
 494         draw_spot(spots[i], (i%SPOTS_X)*SPOTS_WIDTH, (i/SPOTS_X)*SPOTS_HEIGHT);
 495
 496     rb->lcd_update();
 497 }
 498
 499 /* initializes the puzzle */
 500 static void puzzle_init(void)
 501 {
 502     int i, r, temp, tsp[NUM_SPOTS];
 503
 504     moves = 0;
 505
 506     /* shuffle spots */
 507     for (i=NUM_SPOTS-1; i>=0; i--) {
 508         r = (rb->rand() % (i+1));
 509
 510         temp = spots[r];
 511         spots[r] = spots[i];
 512         spots[i] = temp;
 513
 514         if (spots[i]==HOLE_ID)
 515             hole = i;
 516     }
 517
 518     /* test if the puzzle is solvable */
 519     for (i=0; i<NUM_SPOTS; i++)
 520         tsp[i] = spots[i];
 521     r=0;
 522
 523     /* First, check if the problem has even or odd parity,
 524        depending on where the empty square is */
 525     if ((((SPOTS_X-1)-hole%SPOTS_X) + ((SPOTS_Y-1)-hole/SPOTS_X))%2 == 1)
 526         ++r;
 527
 528     /* Now check how many swaps we need to solve it */
 529     for (i=0; i<NUM_SPOTS-1; i++) {
 530         while (tsp[i] != (i+1)) {
 531             temp = tsp[i];
 532             tsp[i] = tsp[temp-1];
 533             tsp[temp-1] = temp;
 534             ++r;
 535         }
 536     }
 537
 538     /* if the random puzzle isn't solvable just change two spots */
 539     if (r%2 == 1) {
 540         if (spots[0]!=HOLE_ID && spots[1]!=HOLE_ID) {
 541             temp = spots[0];
 542             spots[0] = spots[1];
 543             spots[1] = temp;
 544         } else {
 545             temp = spots[2];
 546             spots[2] = spots[3];
 547             spots[3] = temp;
 548         }
 549     }
 550
 551     draw_playfield();
 552 }
 553
 554 /* the main game loop */
 555 static int puzzle_loop(void)
 556 {
 557     int button;
 558     int lastbutton = BUTTON_NONE;
 559     bool load_success;
 560
 561     puzzle_init();
 562     while(true) {
 563         button = rb->button_get(true);
 564         switch (button) {
 565 #ifdef PUZZLE_RC_QUIT
 566             case PUZZLE_RC_QUIT:
 567 #endif
 568             case PUZZLE_QUIT:
 569                 /* get out of here */
 570                 return PLUGIN_OK;
 571
 572             case PUZZLE_SHUFFLE:
 573 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 574                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 575                     break;
 576 #endif
 577                 /* mix up the pieces */
 578                 puzzle_init();
 579                 break;
 580
 581             case PUZZLE_PICTURE:
 582 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 583                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 584                     break;
 585 #endif
 586                 /* change picture */
 587                 picmode = (picmode+1)%PICMODE_LAST_XXX;
 588
 589                 /* if load_resize_bitmap fails to load bitmap, try next picmode
 590                 */
 591                 do
 592                 {
 593                     load_success = load_resize_bitmap();
 594                     if( !load_success )
 595                         picmode = (picmode+1)%PICMODE_LAST_XXX;
 596                 }
 597                 while( !load_success );
 598
 599                 /* tell the user what mode we picked in the end! */
 600                 rb->splash(HZ,picmode_descriptions[ picmode ] );
 601                 draw_playfield();
 602                 break;
 603
 604             case PUZZLE_LEFT:
 605                 if ((hole%SPOTS_X)<(SPOTS_X-1) && !puzzle_finished())
 606                     move_spot(-1, 0);
 607                 break;
 608
 609             case PUZZLE_RIGHT:
 610                 if ((hole%SPOTS_X)>0 && !puzzle_finished())
 611                     move_spot(1, 0);
 612                 break;
 613
 614             case PUZZLE_UP:
 615                 if ((hole/SPOTS_X)<(SPOTS_Y-1) && !puzzle_finished())
 616                     move_spot(0, -1);
 617                 break;
 618
 619             case PUZZLE_DOWN:
 620                 if ((hole/SPOTS_X)>0 && !puzzle_finished())
 621                     move_spot(0, 1);
 622                 break;
 623
 624             default:
 625                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 626                     return PLUGIN_USB_CONNECTED;
 627                 break;
 628         }
 629         if (button != BUTTON_NONE)
 630             lastbutton = button;
 631     }
 632 }
 633
 634 enum plugin_status plugin_start(
 635                                 const void* parameter)
 636 {
 637     int i, w, h;
 638
 639     initial_bmp_path=(const char *)parameter;
 640     picmode = PICMODE_INITIAL_PICTURE;
 641     img_buf_path[0] = '\0';
 642
 643     /* If launched as a viewer, just go straight to the game without
 644        bothering with the splash or instructions page */
 645     if(parameter==NULL)
 646     {
 647         /* if not launched as a viewer, use default puzzle, and show help */
 648         picmode = PICMODE_DEFAULT_PICTURE;
 649
 650         /* print title */
 651         rb->lcd_getstringsize((unsigned char *)"Sliding Puzzle", &w, &h);
 652         w = (w+1)/2;
 653         h = (h+1)/2;
 654         rb->lcd_clear_display();
 655         rb->lcd_putsxy(LCD_WIDTH/2-w, (LCD_HEIGHT/2)-h,
 656                        (unsigned char *)"Sliding Puzzle");
 657         rb->lcd_update();
 658         rb->sleep(HZ);
 659
 660         /* print instructions */
 661         rb->lcd_clear_display();
 662         rb->lcd_setfont(FONT_SYSFIXED);
 663 #if CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ARCHOS_AV300_PAD
 664         rb->lcd_putsxy(3, 18, "[OFF] to stop");
 665         rb->lcd_putsxy(3, 28, "[F1] shuffle");
 666         rb->lcd_putsxy(3, 38, "[F2] change pic");
 667 #elif CONFIG_KEYPAD == ONDIO_PAD
 668         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 669         rb->lcd_putsxy(0, 28, "[MODE..] shuffle");
 670         rb->lcd_putsxy(0, 38, "[MODE] change pic");
 671 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
 672       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 673       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 674         rb->lcd_putsxy(0, 18, "[S-MENU] to stop");
 675         rb->lcd_putsxy(0, 28, "[S-LEFT] shuffle");
 676         rb->lcd_putsxy(0, 38, "[S-RIGHT] change pic");
 677 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
 678       (CONFIG_KEYPAD == IRIVER_H300_PAD)
 679         rb->lcd_putsxy(0, 18, "[STOP] to stop");
 680         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 681         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 682 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 683         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 684         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 685         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 686 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 687         rb->lcd_putsxy(0, 18, "[POWER] to stop");
 688         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 689         rb->lcd_putsxy(0, 38, "[A] change pic");
 690 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
 691       (CONFIG_KEYPAD == SANSA_C200_PAD)
 692         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 693         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 694         rb->lcd_putsxy(0, 38, "[SELECT] change pic");
 695 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 696         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 697         rb->lcd_putsxy(0, 28, "[REW] shuffle");
 698         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 699 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 700         rb->lcd_putsxy(0, 18, "[BACK] to stop");
 701         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 702         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 703 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 704         rb->lcd_putsxy(0, 18, "[REC] to stop");
 705         rb->lcd_putsxy(0, 28, "[MODE] shuffle");
 706         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 707 #endif
 708 #ifdef HAVE_TOUCHSCREEN
 709         rb->lcd_putsxy(0, 18, PUZZLE_QUIT_TEXT " to stop");
 710         rb->lcd_putsxy(0, 28, PUZZLE_SHUFFLE_TEXT " shuffle");
 711         rb->lcd_putsxy(0, 38, PUZZLE_PICTURE_TEXT " change pic");
 712 #endif
 713 #ifdef HAVE_ALBUMART
 714         rb->lcd_putsxy(0,48,"    pic->albumart->num");
 715 #else
 716         rb->lcd_putsxy(0,48,"    pic<->num");
 717 #endif
 718         rb->lcd_update();
 719         rb->button_get_w_tmo(HZ*2);
 720     }
 721
 722     hole = INITIAL_HOLE;
 723
 724     if( !load_resize_bitmap() )
 725     {
 726         rb->lcd_clear_display();
 727         rb->splash(HZ*2,"Failed to load bitmap!");
 728         return PLUGIN_OK;
 729     }
 730
 731     /* Calculate possible font sizes and text positions */
 732     rb->lcd_setfont(FONT_UI);
 733     rb->lcd_getstringsize("15", &w, &h);
 734     if ((w > (SPOTS_WIDTH-2)) || (h > (SPOTS_HEIGHT-2)))
 735         num_font = FONT_SYSFIXED;
 736
 737 #if LCD_WIDTH > LCD_HEIGHT
 738     rb->lcd_getstringsize("Moves", &w, &h);
 739     if (w > (LCD_WIDTH-IMAGE_WIDTH-1))
 740         moves_font = FONT_SYSFIXED;
 741     rb->lcd_setfont(moves_font);
 742     rb->lcd_getstringsize("Moves", &w, &h);
 743     moves_y = 10 + h;
 744 #else
 745     rb->lcd_getstringsize("Moves: 999", &w, &h);
 746     if ((w > LCD_WIDTH) || (h > (LCD_HEIGHT-IMAGE_HEIGHT-1)))
 747         moves_font = FONT_SYSFIXED;
 748     rb->lcd_setfont(moves_font);
 749     rb->lcd_getstringsize("Moves: 999", &w, &h);
 750     moves_y = (IMAGE_HEIGHT+1+(LCD_HEIGHT-IMAGE_HEIGHT-1)/2) - h / 2;
 751 #endif
 752     for (i=0; i<NUM_SPOTS; i++)
 753         spots[i]=(i+1);
 754
 755 #ifdef HAVE_LCD_COLOR
 756     rb->lcd_set_background(LCD_BLACK);
 757     rb->lcd_set_foreground(LCD_WHITE);
 758     rb->lcd_set_backdrop(NULL);
 759 #elif LCD_DEPTH > 1
 760     rb->lcd_set_background(LCD_WHITE);
 761     rb->lcd_set_foreground(LCD_BLACK);
 762     rb->lcd_set_backdrop(NULL);
 763 #endif
 764
 765     draw_playfield();
 766     rb->sleep(HZ*2);
 767
 768     return puzzle_loop();
 769 }
 770
 771 #endif