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) || CONFIG_KEYPAD == MROBE500_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 #ifdef HAVE_ALBUMART
 233 #include "lib/read_image.h"
 234 #define READ_IMAGE read_image_file
 235 #else
 236 #define READ_IMAGE rb->read_bmp_file
 237 #endif
 238
 239 #include "pluginbitmaps/sliding_puzzle.h"
 240 #define IMAGE_WIDTH BMPWIDTH_sliding_puzzle
 241 #define IMAGE_HEIGHT BMPHEIGHT_sliding_puzzle
 242 #define IMAGE_SIZE IMAGE_WIDTH
 243
 244 /* use a square image, (the default Archos bitmap looks square on its display)
 245    Puzzle image dimension is min(lcd_height,lcd_width)
 246    4x4 is more convenient for square puzzles
 247    Note: sliding_puzzle.bmp should be evenly divisible by SPOTS_X
 248    and SPOTS_Y, otherwise lcd_bitmap_part stride won't be correct */
 249 #define SPOTS_X 4
 250 #define SPOTS_Y 4
 251 #define SPOTS_WIDTH  (IMAGE_WIDTH / SPOTS_X)
 252 #define SPOTS_HEIGHT (IMAGE_HEIGHT / SPOTS_Y)
 253 #define NUM_SPOTS    (SPOTS_X*SPOTS_Y)
 254 #define HOLE_ID      (NUM_SPOTS)
 255 #define INITIAL_HOLE (HOLE_ID-1)
 256
 257 enum picmodes
 258 {
 259     PICMODE_NUMERALS = 0,
 260     PICMODE_INITIAL_PICTURE,
 261     PICMODE_DEFAULT_PICTURE,
 262 #ifdef HAVE_ALBUMART
 263     PICMODE_ALBUM_ART,
 264 #endif
 265 //    PICMODE_RANDOM,
 266     PICMODE_LAST_XXX /* placeholder */
 267 };
 268
 269 static const char* const picmode_descriptions[] = {
 270     "Numerals",
 271     "Viewer Picture",
 272     "Default Picture",
 273 #ifdef HAVE_ALBUMART
 274     "Album Art",
 275 #endif
 276     "Shouldn't Get Here",
 277 };
 278
 279 static int spots[NUM_SPOTS];
 280 static int hole = INITIAL_HOLE, moves;
 281 static unsigned char s[32];
 282 static enum picmodes picmode = PICMODE_INITIAL_PICTURE;
 283 static int num_font = FONT_UI;
 284 static int moves_font = FONT_UI;
 285 static int moves_y = 0;
 286
 287 static unsigned char *img_buf;
 288 static size_t img_buf_len;
 289 #ifdef HAVE_ALBUMART
 290 static char albumart_path[MAX_PATH+1];
 291 #endif
 292 static char img_buf_path[MAX_PATH+1];
 293
 294 static const fb_data * puzzle_bmp_ptr;
 295 /* initial_bmp_path points to selected bitmap if this game is launched
 296    as a viewer for a .bmp file, or NULL if game is launched regular way */
 297 static const char * initial_bmp_path=NULL;
 298
 299 #ifdef HAVE_ALBUMART
 300 const char * get_albumart_bmp_path(void)
 301 {
 302     struct mp3entry* track = rb->audio_current_track();
 303
 304     if (!track || !track->path || track->path[0] == '\0')
 305         return NULL;
 306
 307     if (!rb->search_albumart_files(track, "", albumart_path, MAX_PATH ) )
 308         return NULL;
 309
 310     albumart_path[ MAX_PATH ] = '\0';
 311     return albumart_path;
 312 }
 313 #endif
 314
 315 const char * get_random_bmp_path(void)
 316 {
 317     return(initial_bmp_path);
 318 }
 319
 320 static bool load_resize_bitmap(void)
 321 {
 322     int rc;
 323     const char * filename = NULL;
 324
 325     /* initially assume using the built-in default */
 326     puzzle_bmp_ptr = sliding_puzzle;
 327
 328     switch( picmode ){
 329         /* some modes don't even need to touch disk and trivially succeed */
 330         case PICMODE_NUMERALS:
 331         case PICMODE_DEFAULT_PICTURE:
 332         default:
 333             return(true);
 334
 335 #ifdef HAVE_ALBUMART
 336         case PICMODE_ALBUM_ART:
 337             filename = get_albumart_bmp_path();
 338             break;
 339 #endif
 340 /*
 341         case PICMODE_RANDOM:
 342             if(NULL == (filename=get_random_bmp_path()) )
 343                 filename = initial_bmp_path;
 344             break;
 345 */
 346         case PICMODE_INITIAL_PICTURE:
 347             filename = initial_bmp_path;
 348             break;
 349     };
 350
 351     if( filename != NULL )
 352     {
 353         /* if we already loaded image before, don't touch disk */
 354         if( 0 == rb->strcmp( filename, img_buf_path ) )
 355         {
 356             puzzle_bmp_ptr = (const fb_data *)img_buf;
 357             return true;
 358         }
 359
 360         struct bitmap main_bitmap;
 361         rb->memset(&main_bitmap,0,sizeof(struct bitmap));
 362         main_bitmap.data = img_buf;
 363
 364         main_bitmap.width = IMAGE_WIDTH;
 365         main_bitmap.height = IMAGE_HEIGHT;
 366
 367         rc = READ_IMAGE( filename, &main_bitmap,
 368                          img_buf_len,
 369                          FORMAT_NATIVE|FORMAT_RESIZE|FORMAT_DITHER,
 370                          NULL);
 371         if( rc > 0 )
 372         {
 373             puzzle_bmp_ptr = (const fb_data *)img_buf;
 374             rb->strcpy( img_buf_path, filename );
 375             return true;
 376         }
 377     }
 378
 379     /* something must have failed. get_albumart_bmp_path could return
 380        NULL if albumart doesn't exist or couldn't be loaded, or
 381        read_bmp_file could have failed.  return false and caller should
 382        try the next mode (PICMODE_DEFAULT_PICTURE and PICMODE_NUMERALS will
 383        always succeed) */
 384     return false;
 385 }
 386
 387 /* draws a spot at the coordinates (x,y), range of p is 1-20 */
 388 static void draw_spot(int p, int x, int y)
 389 {
 390     int w, h;
 391
 392     if (p == HOLE_ID)
 393     {
 394 #if LCD_DEPTH==1
 395         /* the bottom-right cell of the default sliding_puzzle image is
 396            an appropriate hole graphic */
 397         rb->lcd_bitmap_part(sliding_puzzle, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 398                                  ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 399                                 IMAGE_WIDTH, x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 400 #else
 401         /* just draw a black rectangle */
 402         int old_fg = rb->lcd_get_foreground();
 403         rb->lcd_set_foreground(LCD_BLACK);
 404         rb->lcd_fillrect(x,y,SPOTS_WIDTH,SPOTS_HEIGHT);
 405         rb->lcd_set_foreground(old_fg);
 406 #endif
 407     }
 408     else if (picmode != PICMODE_NUMERALS)
 409     {
 410         rb->lcd_bitmap_part( puzzle_bmp_ptr, ((p-1)%SPOTS_X)*SPOTS_WIDTH,
 411                              ((p-1)/SPOTS_X)*SPOTS_HEIGHT,
 412                              IMAGE_WIDTH, x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 413     } else {
 414         rb->lcd_drawrect(x, y, SPOTS_WIDTH, SPOTS_HEIGHT);
 415         rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 416         rb->lcd_fillrect(x+1, y+1, SPOTS_WIDTH-2, SPOTS_HEIGHT-2);
 417         rb->lcd_set_drawmode(DRMODE_SOLID);
 418         rb->snprintf(s, sizeof(s), "%d", p);
 419         rb->lcd_setfont(num_font);
 420         rb->lcd_getstringsize(s, &w, &h);
 421         rb->lcd_putsxy(x + (SPOTS_WIDTH/2) - w / 2,
 422                        y + (SPOTS_HEIGHT/2) - h / 2, s);
 423     }
 424 }
 425
 426 /* check if the puzzle is solved */
 427 static bool puzzle_finished(void)
 428 {
 429     int i;
 430     for (i=0; i<NUM_SPOTS; i++)
 431     if (spots[i] != (i+1))
 432         return false;
 433     return true;
 434 }
 435
 436 /* move a piece in any direction */
 437 static void move_spot(int x, int y)
 438 {
 439     int i, w;
 440     spots[hole] = spots[hole-x-SPOTS_X*y];
 441     hole -= (x+SPOTS_X*y);
 442     moves++;
 443     rb->lcd_setfont(moves_font);
 444 #if LCD_WIDTH > LCD_HEIGHT
 445     rb->snprintf(s, sizeof(s), "%d", moves);
 446     w = rb->lcd_getstringsize(s, NULL, NULL);
 447     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 448                    moves_y, s);
 449 #else
 450     (void)w;
 451     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 452     rb->lcd_putsxy(3, moves_y, s);
 453 #endif
 454     for(i=1;i<=4;i++)
 455     {
 456        draw_spot(HOLE_ID,
 457                  (hole%SPOTS_X)*SPOTS_WIDTH,
 458                  (hole/SPOTS_X)*SPOTS_HEIGHT);
 459        draw_spot(spots[hole],
 460                  (hole%SPOTS_X)*SPOTS_WIDTH + (i*x*SPOTS_WIDTH)/5,
 461                  (hole/SPOTS_X)*SPOTS_HEIGHT + (i*y*SPOTS_HEIGHT)/5);
 462        rb->lcd_update();
 463        rb->sleep(HZ/50);
 464     }
 465     draw_spot(HOLE_ID,
 466               (hole%SPOTS_X)*SPOTS_WIDTH,
 467               (hole/SPOTS_X)*SPOTS_HEIGHT);
 468     draw_spot(spots[hole],
 469               ((hole%SPOTS_X)+x)*SPOTS_WIDTH,
 470               ((hole/SPOTS_X)+y)*SPOTS_HEIGHT);
 471     rb->lcd_update();
 472
 473     spots[hole] = HOLE_ID;
 474 }
 475
 476 static void draw_playfield(void)
 477 {
 478     int i, w;
 479
 480     rb->lcd_clear_display();
 481     rb->lcd_setfont(moves_font);
 482 #if LCD_WIDTH > LCD_HEIGHT
 483     rb->lcd_vline(IMAGE_WIDTH, 0, LCD_HEIGHT-1);
 484     w = rb->lcd_getstringsize("Moves", NULL, NULL);
 485     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 486                    10, "Moves");
 487     rb->snprintf(s, sizeof(s), "%d", moves);
 488     w = rb->lcd_getstringsize(s, NULL, NULL);
 489     rb->lcd_putsxy((IMAGE_WIDTH+1+(LCD_WIDTH-IMAGE_WIDTH-1)/2) - w / 2,
 490                    moves_y, s);
 491 #else
 492     (void)w;
 493     rb->lcd_hline(0, LCD_WIDTH-1, IMAGE_HEIGHT);
 494     rb->snprintf(s, sizeof(s), "Moves: %d", moves);
 495     rb->lcd_putsxy(3, moves_y, s);
 496 #endif
 497
 498     /* draw spots to the lcd */
 499     for (i=0; i<NUM_SPOTS; i++)
 500         draw_spot(spots[i], (i%SPOTS_X)*SPOTS_WIDTH, (i/SPOTS_X)*SPOTS_HEIGHT);
 501
 502     rb->lcd_update();
 503 }
 504
 505 /* initializes the puzzle */
 506 static void puzzle_init(void)
 507 {
 508     int i, r, temp, tsp[NUM_SPOTS];
 509
 510     moves = 0;
 511
 512     /* shuffle spots */
 513     for (i=NUM_SPOTS-1; i>=0; i--) {
 514         r = (rb->rand() % (i+1));
 515
 516         temp = spots[r];
 517         spots[r] = spots[i];
 518         spots[i] = temp;
 519
 520         if (spots[i]==HOLE_ID)
 521             hole = i;
 522     }
 523
 524     /* test if the puzzle is solvable */
 525     for (i=0; i<NUM_SPOTS; i++)
 526         tsp[i] = spots[i];
 527     r=0;
 528
 529     /* First, check if the problem has even or odd parity,
 530        depending on where the empty square is */
 531     if ((((SPOTS_X-1)-hole%SPOTS_X) + ((SPOTS_Y-1)-hole/SPOTS_X))%2 == 1)
 532         ++r;
 533
 534     /* Now check how many swaps we need to solve it */
 535     for (i=0; i<NUM_SPOTS-1; i++) {
 536         while (tsp[i] != (i+1)) {
 537             temp = tsp[i];
 538             tsp[i] = tsp[temp-1];
 539             tsp[temp-1] = temp;
 540             ++r;
 541         }
 542     }
 543
 544     /* if the random puzzle isn't solvable just change two spots */
 545     if (r%2 == 1) {
 546         if (spots[0]!=HOLE_ID && spots[1]!=HOLE_ID) {
 547             temp = spots[0];
 548             spots[0] = spots[1];
 549             spots[1] = temp;
 550         } else {
 551             temp = spots[2];
 552             spots[2] = spots[3];
 553             spots[3] = temp;
 554         }
 555     }
 556
 557     draw_playfield();
 558 }
 559
 560 /* the main game loop */
 561 static int puzzle_loop(void)
 562 {
 563     int button;
 564     int lastbutton = BUTTON_NONE;
 565     bool load_success;
 566
 567     puzzle_init();
 568     while(true) {
 569         button = rb->button_get(true);
 570         switch (button) {
 571 #ifdef PUZZLE_RC_QUIT
 572             case PUZZLE_RC_QUIT:
 573 #endif
 574             case PUZZLE_QUIT:
 575                 /* get out of here */
 576                 return PLUGIN_OK;
 577
 578             case PUZZLE_SHUFFLE:
 579 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 580                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 581                     break;
 582 #endif
 583                 /* mix up the pieces */
 584                 puzzle_init();
 585                 break;
 586
 587             case PUZZLE_PICTURE:
 588 #ifdef PUZZLE_SHUFFLE_PICTURE_PRE
 589                 if (lastbutton != PUZZLE_SHUFFLE_PICTURE_PRE)
 590                     break;
 591 #endif
 592                 /* change picture */
 593                 picmode = (picmode+1)%PICMODE_LAST_XXX;
 594
 595                 /* if load_resize_bitmap fails to load bitmap, try next picmode
 596                 */
 597                 do
 598                 {
 599                     load_success = load_resize_bitmap();
 600                     if( !load_success )
 601                         picmode = (picmode+1)%PICMODE_LAST_XXX;
 602                 }
 603                 while( !load_success );
 604
 605                 /* tell the user what mode we picked in the end! */
 606                 rb->splash(HZ,picmode_descriptions[ picmode ] );
 607                 draw_playfield();
 608                 break;
 609
 610             case PUZZLE_LEFT:
 611                 if ((hole%SPOTS_X)<(SPOTS_X-1) && !puzzle_finished())
 612                     move_spot(-1, 0);
 613                 break;
 614
 615             case PUZZLE_RIGHT:
 616                 if ((hole%SPOTS_X)>0 && !puzzle_finished())
 617                     move_spot(1, 0);
 618                 break;
 619
 620             case PUZZLE_UP:
 621                 if ((hole/SPOTS_X)<(SPOTS_Y-1) && !puzzle_finished())
 622                     move_spot(0, -1);
 623                 break;
 624
 625             case PUZZLE_DOWN:
 626                 if ((hole/SPOTS_X)>0 && !puzzle_finished())
 627                     move_spot(0, 1);
 628                 break;
 629
 630             default:
 631                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 632                     return PLUGIN_USB_CONNECTED;
 633                 break;
 634         }
 635         if (button != BUTTON_NONE)
 636             lastbutton = button;
 637     }
 638 }
 639
 640 enum plugin_status plugin_start(
 641                                 const void* parameter)
 642 {
 643     int i, w, h;
 644
 645     initial_bmp_path=(const char *)parameter;
 646     img_buf = rb->plugin_get_buffer(&img_buf_len);
 647     picmode = PICMODE_INITIAL_PICTURE;
 648     img_buf_path[0] = '\0';
 649
 650     /* If launched as a viewer, just go straight to the game without
 651        bothering with the splash or instructions page */
 652     if(parameter==NULL)
 653     {
 654         /* if not launched as a viewer, use default puzzle, and show help */
 655         picmode = PICMODE_DEFAULT_PICTURE;
 656
 657         /* print title */
 658         rb->lcd_getstringsize((unsigned char *)"Sliding Puzzle", &w, &h);
 659         w = (w+1)/2;
 660         h = (h+1)/2;
 661         rb->lcd_clear_display();
 662         rb->lcd_putsxy(LCD_WIDTH/2-w, (LCD_HEIGHT/2)-h,
 663                        (unsigned char *)"Sliding Puzzle");
 664         rb->lcd_update();
 665         rb->sleep(HZ);
 666
 667         /* print instructions */
 668         rb->lcd_clear_display();
 669         rb->lcd_setfont(FONT_SYSFIXED);
 670 #if CONFIG_KEYPAD == RECORDER_PAD || CONFIG_KEYPAD == ARCHOS_AV300_PAD
 671         rb->lcd_putsxy(3, 18, "[OFF] to stop");
 672         rb->lcd_putsxy(3, 28, "[F1] shuffle");
 673         rb->lcd_putsxy(3, 38, "[F2] change pic");
 674 #elif CONFIG_KEYPAD == ONDIO_PAD
 675         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 676         rb->lcd_putsxy(0, 28, "[MODE..] shuffle");
 677         rb->lcd_putsxy(0, 38, "[MODE] change pic");
 678 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
 679       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 680       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 681         rb->lcd_putsxy(0, 18, "[S-MENU] to stop");
 682         rb->lcd_putsxy(0, 28, "[S-LEFT] shuffle");
 683         rb->lcd_putsxy(0, 38, "[S-RIGHT] change pic");
 684 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
 685       (CONFIG_KEYPAD == IRIVER_H300_PAD)
 686         rb->lcd_putsxy(0, 18, "[STOP] to stop");
 687         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 688         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 689 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 690         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 691         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 692         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 693 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 694         rb->lcd_putsxy(0, 18, "[POWER] to stop");
 695         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 696         rb->lcd_putsxy(0, 38, "[A] change pic");
 697 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
 698       (CONFIG_KEYPAD == SANSA_C200_PAD)
 699         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 700         rb->lcd_putsxy(0, 28, "[REC] shuffle");
 701         rb->lcd_putsxy(0, 38, "[SELECT] change pic");
 702 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 703         rb->lcd_putsxy(0, 18, "[OFF] to stop");
 704         rb->lcd_putsxy(0, 28, "[REW] shuffle");
 705         rb->lcd_putsxy(0, 38, "[PLAY] change pic");
 706 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 707         rb->lcd_putsxy(0, 18, "[BACK] to stop");
 708         rb->lcd_putsxy(0, 28, "[SELECT] shuffle");
 709         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 710 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 711         rb->lcd_putsxy(0, 18, "[REC] to stop");
 712         rb->lcd_putsxy(0, 28, "[MODE] shuffle");
 713         rb->lcd_putsxy(0, 38, "[MENU] change pic");
 714 #endif
 715 #ifdef HAVE_TOUCHSCREEN
 716         rb->lcd_putsxy(0, 18, PUZZLE_QUIT_TEXT " to stop");
 717         rb->lcd_putsxy(0, 28, PUZZLE_SHUFFLE_TEXT " shuffle");
 718         rb->lcd_putsxy(0, 38, PUZZLE_PICTURE_TEXT " change pic");
 719 #endif
 720 #ifdef HAVE_ALBUMART
 721         rb->lcd_putsxy(0,48,"    pic->albumart->num");
 722 #else
 723         rb->lcd_putsxy(0,48,"    pic<->num");
 724 #endif
 725         rb->lcd_update();
 726         rb->button_get_w_tmo(HZ*2);
 727     }
 728
 729     hole = INITIAL_HOLE;
 730
 731     if( !load_resize_bitmap() )
 732     {
 733         rb->lcd_clear_display();
 734         rb->splash(HZ*2,"Failed to load bitmap!");
 735         return PLUGIN_OK;
 736     }
 737
 738     /* Calculate possible font sizes and text positions */
 739     rb->lcd_setfont(FONT_UI);
 740     rb->lcd_getstringsize("15", &w, &h);
 741     if ((w > (SPOTS_WIDTH-2)) || (h > (SPOTS_HEIGHT-2)))
 742         num_font = FONT_SYSFIXED;
 743
 744 #if LCD_WIDTH > LCD_HEIGHT
 745     rb->lcd_getstringsize("Moves", &w, &h);
 746     if (w > (LCD_WIDTH-IMAGE_WIDTH-1))
 747         moves_font = FONT_SYSFIXED;
 748     rb->lcd_setfont(moves_font);
 749     rb->lcd_getstringsize("Moves", &w, &h);
 750     moves_y = 10 + h;
 751 #else
 752     rb->lcd_getstringsize("Moves: 999", &w, &h);
 753     if ((w > LCD_WIDTH) || (h > (LCD_HEIGHT-IMAGE_HEIGHT-1)))
 754         moves_font = FONT_SYSFIXED;
 755     rb->lcd_setfont(moves_font);
 756     rb->lcd_getstringsize("Moves: 999", &w, &h);
 757     moves_y = (IMAGE_HEIGHT+1+(LCD_HEIGHT-IMAGE_HEIGHT-1)/2) - h / 2;
 758 #endif
 759     for (i=0; i<NUM_SPOTS; i++)
 760         spots[i]=(i+1);
 761
 762 #ifdef HAVE_LCD_COLOR
 763     rb->lcd_set_background(LCD_BLACK);
 764     rb->lcd_set_foreground(LCD_WHITE);
 765     rb->lcd_set_backdrop(NULL);
 766 #elif LCD_DEPTH > 1
 767     rb->lcd_set_background(LCD_WHITE);
 768     rb->lcd_set_foreground(LCD_BLACK);
 769     rb->lcd_set_backdrop(NULL);
 770 #endif
 771
 772     draw_playfield();
 773     rb->sleep(HZ*2);
 774
 775     return puzzle_loop();
 776 }
 777
 778 #endif