apps/plugins/minesweeper.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2004-2006 Antoine Cellerier <dionoea -at- videolan -dot- org>
  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
  22 #include "plugin.h"
  23
  24 #ifdef HAVE_LCD_BITMAP
  25
  26 #include "lib/playback_control.h"
  27
  28 PLUGIN_HEADER
  29
  30 /* what the minesweeper() function can return */
  31 enum minesweeper_status {
  32     MINESWEEPER_WIN,
  33     MINESWEEPER_LOSE,
  34     MINESWEEPER_QUIT,
  35     MINESWEEPER_USB
  36 };
  37
  38 /* variable button definitions */
  39 #if CONFIG_KEYPAD == RECORDER_PAD
  40 #   define MINESWP_LEFT     BUTTON_LEFT
  41 #   define MINESWP_RIGHT    BUTTON_RIGHT
  42 #   define MINESWP_UP       BUTTON_UP
  43 #   define MINESWP_DOWN     BUTTON_DOWN
  44 #   define MINESWP_QUIT     BUTTON_OFF
  45 #   define MINESWP_TOGGLE   BUTTON_ON
  46 #   define MINESWP_TOGGLE2  BUTTON_F1
  47 #   define MINESWP_DISCOVER BUTTON_PLAY
  48 #   define MINESWP_DISCOVER2 BUTTON_F2
  49 #   define MINESWP_INFO     BUTTON_F3
  50
  51 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  52 #   define MINESWP_LEFT     BUTTON_LEFT
  53 #   define MINESWP_RIGHT    BUTTON_RIGHT
  54 #   define MINESWP_UP       BUTTON_UP
  55 #   define MINESWP_DOWN     BUTTON_DOWN
  56 #   define MINESWP_QUIT     BUTTON_OFF
  57 #   define MINESWP_TOGGLE   BUTTON_ON
  58 #   define MINESWP_TOGGLE2  BUTTON_F1
  59 #   define MINESWP_DISCOVER BUTTON_SELECT
  60 #   define MINESWP_DISCOVER2 BUTTON_F2
  61 #   define MINESWP_INFO     BUTTON_F3
  62
  63 #elif CONFIG_KEYPAD == ONDIO_PAD
  64 #   define MINESWP_LEFT     BUTTON_LEFT
  65 #   define MINESWP_RIGHT    BUTTON_RIGHT
  66 #   define MINESWP_UP       BUTTON_UP
  67 #   define MINESWP_DOWN     BUTTON_DOWN
  68 #   define MINESWP_QUIT     BUTTON_OFF
  69 #   define MINESWP_TOGGLE_PRE BUTTON_MENU
  70 #   define MINESWP_TOGGLE   (BUTTON_MENU | BUTTON_REL)
  71 #   define MINESWP_DISCOVER (BUTTON_MENU | BUTTON_REPEAT)
  72 #   define MINESWP_INFO     (BUTTON_MENU | BUTTON_OFF)
  73
  74 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  75       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  76 #   define MINESWP_LEFT     BUTTON_LEFT
  77 #   define MINESWP_RIGHT    BUTTON_RIGHT
  78 #   define MINESWP_UP       BUTTON_UP
  79 #   define MINESWP_DOWN     BUTTON_DOWN
  80 #   define MINESWP_QUIT     BUTTON_OFF
  81 #   define MINESWP_TOGGLE   BUTTON_ON
  82 #   define MINESWP_TOGGLE2  BUTTON_REC
  83 #   define MINESWP_DISCOVER BUTTON_SELECT
  84 #   define MINESWP_INFO     BUTTON_MODE
  85
  86 #   define MINESWP_RC_QUIT  BUTTON_RC_STOP
  87
  88 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  89       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  90       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  91 #   define MINESWP_SCROLLWHEEL
  92 #   define MINESWP_LEFT       BUTTON_LEFT
  93 #   define MINESWP_RIGHT      BUTTON_RIGHT
  94 #   define MINESWP_UP         BUTTON_MENU
  95 #   define MINESWP_DOWN       BUTTON_PLAY
  96 #   define MINESWP_NEXT       BUTTON_SCROLL_FWD
  97 #   define MINESWP_PREV       BUTTON_SCROLL_BACK
  98 #   define MINESWP_QUIT       (BUTTON_SELECT | BUTTON_MENU)
  99 #   define MINESWP_TOGGLE_PRE BUTTON_SELECT
 100 #   define MINESWP_TOGGLE     (BUTTON_SELECT | BUTTON_REL)
 101 #   define MINESWP_DISCOVER   (BUTTON_SELECT | BUTTON_REPEAT)
 102 #   define MINESWP_INFO       (BUTTON_SELECT | BUTTON_PLAY)
 103
 104 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
 105 #   define MINESWP_LEFT     BUTTON_LEFT
 106 #   define MINESWP_RIGHT    BUTTON_RIGHT
 107 #   define MINESWP_UP       BUTTON_UP
 108 #   define MINESWP_DOWN     BUTTON_DOWN
 109 #   define MINESWP_QUIT     BUTTON_POWER
 110 #   define MINESWP_TOGGLE   BUTTON_PLAY
 111 #   define MINESWP_DISCOVER BUTTON_SELECT
 112 #   define MINESWP_INFO     BUTTON_REC
 113
 114 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 115 #   define MINESWP_LEFT     BUTTON_LEFT
 116 #   define MINESWP_RIGHT    BUTTON_RIGHT
 117 #   define MINESWP_UP       BUTTON_UP
 118 #   define MINESWP_DOWN     BUTTON_DOWN
 119 #   define MINESWP_QUIT     BUTTON_POWER
 120 #   define MINESWP_TOGGLE   BUTTON_A
 121 #   define MINESWP_DISCOVER BUTTON_SELECT
 122 #   define MINESWP_INFO     BUTTON_MENU
 123
 124 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 125
 126 #   define MINESWP_SCROLLWHEEL
 127 #   define MINESWP_LEFT     BUTTON_LEFT
 128 #   define MINESWP_RIGHT    BUTTON_RIGHT
 129 #   define MINESWP_UP       BUTTON_UP
 130 #   define MINESWP_DOWN     BUTTON_DOWN
 131 #   define MINESWP_QUIT     BUTTON_POWER
 132 #   define MINESWP_NEXT     BUTTON_SCROLL_FWD
 133 #   define MINESWP_PREV     BUTTON_SCROLL_BACK
 134 #   define MINESWP_TOGGLE   BUTTON_REC
 135 #   define MINESWP_DISCOVER BUTTON_SELECT
 136 #   define MINESWP_INFO     (BUTTON_REC|BUTTON_REPEAT)
 137
 138 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 139
 140 #   define MINESWP_LEFT     BUTTON_LEFT
 141 #   define MINESWP_RIGHT    BUTTON_RIGHT
 142 #   define MINESWP_UP       BUTTON_UP
 143 #   define MINESWP_DOWN     BUTTON_DOWN
 144 #   define MINESWP_QUIT     (BUTTON_HOME|BUTTON_REPEAT)
 145 #   define MINESWP_TOGGLE   BUTTON_SCROLL_FWD
 146 #   define MINESWP_DISCOVER BUTTON_SELECT
 147 #   define MINESWP_INFO     BUTTON_SCROLL_BACK
 148
 149 #elif (CONFIG_KEYPAD == SANSA_C200_PAD) || \
 150 (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
 151 (CONFIG_KEYPAD == SANSA_M200_PAD)
 152 #   define MINESWP_LEFT       BUTTON_LEFT
 153 #   define MINESWP_RIGHT      BUTTON_RIGHT
 154 #   define MINESWP_UP         BUTTON_UP
 155 #   define MINESWP_DOWN       BUTTON_DOWN
 156 #   define MINESWP_QUIT       BUTTON_POWER
 157 #   define MINESWP_TOGGLE_PRE BUTTON_SELECT
 158 #   define MINESWP_TOGGLE     (BUTTON_SELECT | BUTTON_REL)
 159 #   define MINESWP_TOGGLE2    BUTTON_VOL_DOWN
 160 #   define MINESWP_DISCOVER   (BUTTON_SELECT | BUTTON_REPEAT)
 161 #   define MINESWP_DISCOVER2  BUTTON_VOL_UP
 162 #   define MINESWP_INFO       (BUTTON_SELECT | BUTTON_UP)
 163
 164 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
 165 #   define MINESWP_LEFT     BUTTON_LEFT
 166 #   define MINESWP_RIGHT    BUTTON_RIGHT
 167 #   define MINESWP_UP       BUTTON_SCROLL_UP
 168 #   define MINESWP_DOWN     BUTTON_SCROLL_DOWN
 169 #   define MINESWP_QUIT     BUTTON_POWER
 170 #   define MINESWP_TOGGLE   BUTTON_PLAY
 171 #   define MINESWP_DISCOVER BUTTON_REW
 172 #   define MINESWP_INFO     (BUTTON_REW | BUTTON_PLAY)
 173
 174 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
 175 #   define MINESWP_LEFT     BUTTON_LEFT
 176 #   define MINESWP_RIGHT    BUTTON_RIGHT
 177 #   define MINESWP_UP       BUTTON_UP
 178 #   define MINESWP_DOWN     BUTTON_DOWN
 179 #   define MINESWP_QUIT     BUTTON_BACK
 180 #   define MINESWP_TOGGLE   BUTTON_PLAY
 181 #   define MINESWP_DISCOVER BUTTON_SELECT
 182 #   define MINESWP_INFO     BUTTON_MENU
 183
 184 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 185 #   define MINESWP_LEFT     BUTTON_LEFT
 186 #   define MINESWP_RIGHT    BUTTON_RIGHT
 187 #   define MINESWP_UP       BUTTON_UP
 188 #   define MINESWP_DOWN     BUTTON_DOWN
 189 #   define MINESWP_QUIT     BUTTON_POWER
 190 #   define MINESWP_TOGGLE   BUTTON_DISPLAY
 191 #   define MINESWP_DISCOVER BUTTON_SELECT
 192 #   define MINESWP_INFO     BUTTON_MENU
 193
 194 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 195 #   define MINESWP_LEFT     BUTTON_RC_REW
 196 #   define MINESWP_RIGHT    BUTTON_RC_FF
 197 #   define MINESWP_UP       BUTTON_RC_VOL_UP
 198 #   define MINESWP_DOWN     BUTTON_RC_VOL_DOWN
 199 #   define MINESWP_QUIT     BUTTON_RC_REC
 200 #   define MINESWP_TOGGLE   BUTTON_RC_MODE
 201 #   define MINESWP_DISCOVER BUTTON_RC_PLAY
 202 #   define MINESWP_INFO     BUTTON_RC_MENU
 203
 204 #elif (CONFIG_KEYPAD == COWOND2_PAD)
 205 #   define MINESWP_QUIT     BUTTON_POWER
 206
 207 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 208 #   define MINESWP_LEFT     BUTTON_LEFT
 209 #   define MINESWP_RIGHT    BUTTON_RIGHT
 210 #   define MINESWP_UP       BUTTON_UP
 211 #   define MINESWP_DOWN     BUTTON_DOWN
 212 #   define MINESWP_QUIT     BUTTON_BACK
 213 #   define MINESWP_TOGGLE   BUTTON_SELECT
 214 #   define MINESWP_DISCOVER BUTTON_PLAY
 215 #   define MINESWP_INFO     BUTTON_MENU
 216
 217 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 218 #   define MINESWP_LEFT     BUTTON_LEFT
 219 #   define MINESWP_RIGHT    BUTTON_RIGHT
 220 #   define MINESWP_UP       BUTTON_UP
 221 #   define MINESWP_DOWN     BUTTON_DOWN
 222 #   define MINESWP_QUIT     BUTTON_POWER
 223 #   define MINESWP_TOGGLE   BUTTON_VIEW
 224 #   define MINESWP_DISCOVER BUTTON_SELECT
 225 #   define MINESWP_INFO     BUTTON_MENU
 226
 227 #elif (CONFIG_KEYPAD == ONDAVX747_PAD) || \
 228 CONFIG_KEYPAD == ONDAVX777_PAD || \
 229 CONFIG_KEYPAD == MROBE500_PAD
 230 #   define MINESWP_QUIT     BUTTON_POWER
 231
 232 #elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
 233 #   define MINESWP_LEFT     BUTTON_LEFT
 234 #   define MINESWP_RIGHT    BUTTON_RIGHT
 235 #   define MINESWP_UP       BUTTON_UP
 236 #   define MINESWP_DOWN     BUTTON_DOWN
 237 #   define MINESWP_QUIT     BUTTON_REC
 238 #   define MINESWP_TOGGLE   BUTTON_PLAY
 239 #   define MINESWP_DISCOVER BUTTON_REW
 240 #   define MINESWP_INFO     BUTTON_FFWD
 241
 242 #else
 243 #error No keymap defined!
 244 #endif
 245
 246 #ifdef HAVE_TOUCHSCREEN
 247 #ifndef MINESWP_QUIT
 248 #   define MINESWP_QUIT     BUTTON_TOPLEFT
 249 #endif
 250 #ifndef MINESWP_LEFT
 251 #   define MINESWP_LEFT     BUTTON_MIDLEFT
 252 #endif
 253 #ifndef MINESWP_RIGHT
 254 #   define MINESWP_RIGHT    BUTTON_MIDRIGHT
 255 #endif
 256 #ifndef MINESWP_UP
 257 #   define MINESWP_UP       BUTTON_TOPMIDDLE
 258 #endif
 259 #ifndef MINESWP_DOWN
 260 #   define MINESWP_DOWN     BUTTON_BOTTOMMIDDLE
 261 #endif
 262 #ifndef MINESWP_TOGGLE
 263 #   define MINESWP_TOGGLE   BUTTON_CENTER
 264 #endif
 265 #ifndef MINESWP_DISCOVER
 266 #   define MINESWP_DISCOVER BUTTON_BOTTOMLEFT
 267 #endif
 268 #ifndef MINESWP_INFO
 269 #   define MINESWP_INFO     BUTTON_BOTTOMRIGHT
 270 #endif
 271 #endif
 272
 273 extern const fb_data minesweeper_tiles[];
 274
 275 #ifdef HAVE_LCD_COLOR
 276 #   if ( LCD_HEIGHT * LCD_WIDTH ) / ( 16 * 16 ) >= 130
 277         /* We want to have at least 130 tiles on the screen */
 278 #       define TileSize 16
 279 #   elif ( LCD_HEIGHT * LCD_WIDTH ) / ( 12 * 12 ) >= 130
 280 #       define TileSize 12
 281 #   else
 282 #       define TileSize 10
 283 #   endif
 284 #   define BackgroundColor LCD_RGBPACK( 128, 128, 128 )
 285 #elif LCD_DEPTH > 1
 286 #   define TileSize 12
 287 #else
 288 #   define TileSize 8
 289 #endif
 290
 291 #define Mine         9
 292 #define Flag         10
 293 #define Unknown      11
 294 #define ExplodedMine 12
 295
 296 #define draw_tile( num, x, y ) \
 297     rb->lcd_bitmap_part( minesweeper_tiles, 0, num * TileSize, \
 298                          TileSize, left+x*TileSize, top+y*TileSize, \
 299                          TileSize, TileSize )
 300
 301 #define invert_tile( x, y ) \
 302     rb->lcd_set_drawmode(DRMODE_COMPLEMENT); \
 303     rb->lcd_fillrect( left+x*TileSize, top+y*TileSize, TileSize, TileSize ); \
 304     rb->lcd_set_drawmode(DRMODE_SOLID);
 305
 306
 307 /* the tile struct
 308  * if there is a mine, mine is true
 309  * if tile is known by player, known is true
 310  * if tile has a flag, flag is true
 311  * neighbors is the total number of mines arround tile
 312  */
 313 typedef struct tile
 314 {
 315     unsigned char mine : 1;
 316     unsigned char known : 1;
 317     unsigned char flag : 1;
 318     unsigned char neighbors : 4;
 319 } tile;
 320
 321 /* the height and width of the field */
 322 #define MAX_HEIGHT (LCD_HEIGHT/TileSize)
 323 #define MAX_WIDTH  (LCD_WIDTH/TileSize)
 324 int height = MAX_HEIGHT;
 325 int width = MAX_WIDTH;
 326 int top;
 327 int left;
 328
 329 /* The Minefield. Caution it is defined as Y, X! Not the opposite. */
 330 tile minefield[MAX_HEIGHT][MAX_WIDTH];
 331
 332 /* total number of mines on the game */
 333 int mine_num = 0;
 334
 335 /* percentage of mines on minefield used during generation */
 336 int p = 16;
 337
 338 /* number of tiles left on the game */
 339 int tiles_left;
 340
 341 /* number of used flags on the game */
 342 int flags_used;
 343
 344 /* Because mines are set after the first move... */
 345 bool no_mines = true;
 346
 347 /* We need a stack (created on discover()) for the cascade algorithm. */
 348 int stack_pos = 0;
 349
 350 /* a usefull string for snprintf */
 351 char str[30];
 352
 353 #ifdef HAVE_TOUCHSCREEN
 354
 355 #include "lib/pluginlib_touchscreen.h"
 356 static struct ts_raster mine_raster = { 0, 0, MAX_WIDTH, MAX_HEIGHT, TileSize, TileSize };
 357 #endif
 358
 359
 360 void push( int *stack, int y, int x )
 361 {
 362     if( stack_pos <= height*width )
 363     {
 364         stack[++stack_pos] = y;
 365         stack[++stack_pos] = x;
 366     }
 367 }
 368
 369 /* Unveil tiles and push them to stack if they are empty. */
 370 void unveil( int *stack, int y, int x )
 371 {
 372     if( x < 0 || y < 0 || x > width - 1 || y > height - 1
 373        || minefield[y][x].known
 374        || minefield[y][x].mine || minefield[y][x].flag ) return;
 375
 376     minefield[y][x].known = 1;
 377
 378     if( minefield[y][x].neighbors == 0 )
 379         push( stack, y, x );
 380 }
 381
 382 void discover( int y, int x )
 383 {
 384     int stack[height*width];
 385
 386     /* Selected tile. */
 387     if( x < 0 || y < 0 || x > width - 1 || y > height - 1
 388        || minefield[y][x].known
 389        || minefield[y][x].mine || minefield[y][x].flag ) return;
 390
 391     minefield[y][x].known = 1;
 392     /* Exit if the tile is not empty. (no mines nearby) */
 393     if( minefield[y][x].neighbors ) return;
 394
 395     push( stack, y, x );
 396
 397     /* Scan all nearby tiles. If we meet a tile with a number we just unveil
 398      * it. If we meet an empty tile, we push the location in stack. For each
 399      * location in stack we do the same thing. (scan again all nearby tiles)
 400      */
 401     while( stack_pos )
 402     {
 403         /* Pop x, y from stack. */
 404         x = stack[stack_pos--];
 405         y = stack[stack_pos--];
 406
 407         unveil( stack, y-1, x-1 );
 408         unveil( stack, y-1, x   );
 409         unveil( stack, y-1, x+1 );
 410         unveil( stack, y,   x+1 );
 411         unveil( stack, y+1, x+1 );
 412         unveil( stack, y+1, x   );
 413         unveil( stack, y+1, x-1 );
 414         unveil( stack, y,   x-1 );
 415     }
 416 }
 417
 418 /* Reset the whole board for a new game. */
 419 void minesweeper_init( void )
 420 {
 421     int i,j;
 422
 423     for( i = 0; i < MAX_HEIGHT; i++ )
 424     {
 425         for( j = 0; j < MAX_WIDTH; j++ )
 426         {
 427             minefield[i][j].known = 0;
 428             minefield[i][j].flag = 0;
 429             minefield[i][j].mine = 0;
 430             minefield[i][j].neighbors = 0;
 431         }
 432     }
 433     no_mines = true;
 434     tiles_left = width*height;
 435 }
 436
 437
 438 /* put mines on the mine field */
 439 /* there is p% chance that a tile is a mine */
 440 /* if the tile has coordinates (x,y), then it can't be a mine */
 441 void minesweeper_putmines( int p, int x, int y )
 442 {
 443     int i,j;
 444
 445     mine_num = 0;
 446     for( i = 0; i < height; i++ )
 447     {
 448         for( j = 0; j < width; j++ )
 449         {
 450             if( rb->rand()%100 < p && !( y==i && x==j ) )
 451             {
 452                 minefield[i][j].mine = 1;
 453                 mine_num++;
 454             }
 455             else
 456             {
 457                 minefield[i][j].mine = 0;
 458             }
 459             minefield[i][j].neighbors = 0;
 460         }
 461     }
 462
 463     /* we need to compute the neighbor element for each tile */
 464     for( i = 0; i < height; i++ )
 465     {
 466         for( j = 0; j < width; j++ )
 467         {
 468             if( i > 0 )
 469             {
 470                 if( j > 0 )
 471                     minefield[i][j].neighbors += minefield[i-1][j-1].mine;
 472                 minefield[i][j].neighbors += minefield[i-1][j].mine;
 473                 if( j < width - 1 )
 474                     minefield[i][j].neighbors += minefield[i-1][j+1].mine;
 475             }
 476             if( j > 0 )
 477                 minefield[i][j].neighbors += minefield[i][j-1].mine;
 478             if( j < width - 1 )
 479                 minefield[i][j].neighbors += minefield[i][j+1].mine;
 480             if( i < height - 1 )
 481             {
 482                 if( j > 0 )
 483                     minefield[i][j].neighbors += minefield[i+1][j-1].mine;
 484                 minefield[i][j].neighbors += minefield[i+1][j].mine;
 485                 if( j < width - 1 )
 486                     minefield[i][j].neighbors += minefield[i+1][j+1].mine;
 487             }
 488         }
 489     }
 490
 491     no_mines = false;
 492
 493     /* In case the user is lucky and there are no mines positioned. */
 494     if( !mine_num && height*width != 1 )
 495     {
 496         minesweeper_putmines(p, x, y);
 497     }
 498 }
 499
 500 /* A function that will uncover all the board, when the user wins or loses.
 501    can easily be expanded, (just a call assigned to a button) as a solver. */
 502 void mine_show( void )
 503 {
 504     int i, j, button;
 505
 506     for( i = 0; i < height; i++ )
 507     {
 508         for( j = 0; j < width; j++ )
 509         {
 510             if( minefield[i][j].mine )
 511             {
 512                 if( minefield[i][j].known )
 513                 {
 514                     draw_tile( ExplodedMine, j, i );
 515                 }
 516                 else
 517                 {
 518                     draw_tile( Mine, j, i );
 519                 }
 520             }
 521             else
 522             {
 523                 draw_tile( minefield[i][j].neighbors, j, i );
 524             }
 525         }
 526     }
 527     rb->lcd_update();
 528
 529     do
 530         button = rb->button_get(true);
 531     while( ( button == BUTTON_NONE )
 532            || ( button & (BUTTON_REL|BUTTON_REPEAT) ) );
 533 #ifdef HAVE_TOUCHSCREEN
 534     button = BUTTON_NONE;
 535 #endif
 536 }
 537
 538 int count_tiles_left( void )
 539 {
 540     int tiles_left = 0;
 541     int i, j;
 542     for( i = 0; i < height; i++ )
 543         for( j = 0; j < width; j++ )
 544              if( minefield[i][j].known == 0 )
 545                 tiles_left++;
 546     return tiles_left;
 547 }
 548
 549 int count_flags( void )
 550 {
 551     int flags_used = 0;
 552     int i, j;
 553     for( i = 0; i < height; i++ )
 554         for( j = 0; j < width; j++ )
 555              if( minefield[i][j].flag == 1 )
 556                 flags_used++;
 557     return flags_used;
 558 }
 559
 560 /* welcome screen where player can chose mine percentage */
 561 enum minesweeper_status menu( void )
 562 {
 563     int selection = 0, result = MINESWEEPER_QUIT;
 564     bool menu_quit = false;
 565
 566     MENUITEM_STRINGLIST( menu, "Minesweeper Menu", NULL, "Play Minesweeper",
 567                          "Mine Percentage", "Number of Rows",
 568                          "Number of Columns", "Playback Control", "Quit" );
 569
 570 #ifdef HAVE_LCD_COLOR
 571     rb->lcd_set_foreground( rb->global_settings->fg_color );
 572     rb->lcd_set_background( rb->global_settings->bg_color );
 573 #endif
 574
 575     while( !menu_quit )
 576     {
 577         switch( rb->do_menu( &menu, &selection, NULL, false ) )
 578         {
 579             case 0:
 580                 result = MINESWEEPER_WIN; /* start playing */
 581                 menu_quit = true;
 582                 break;
 583
 584             case 1:
 585                 rb->set_int( "Mine Percentage", "%", UNIT_INT, &p, NULL,
 586                              1, 2, 98, NULL );
 587                 break;
 588
 589             case 2:
 590                 rb->set_int( "Number of Rows", "", UNIT_INT, &height, NULL,
 591                              1, 1, MAX_HEIGHT, NULL );
 592                 break;
 593
 594             case 3:
 595                 rb->set_int( "Number of Columns", "", UNIT_INT, &width, NULL,
 596                              1, 1, MAX_WIDTH, NULL );
 597                 break;
 598
 599             case 4:
 600                 playback_control( NULL );
 601                 break;
 602
 603             default:
 604                 result = MINESWEEPER_QUIT; /* quit program */
 605                 menu_quit = true;
 606                 break;
 607         }
 608     }
 609
 610     return result;
 611 }
 612
 613 /* the big and ugly game function */
 614 enum minesweeper_status minesweeper( void )
 615 {
 616     int i, j;
 617     int button;
 618     int lastbutton = BUTTON_NONE;
 619
 620     /* the cursor coordinates */
 621     int x=0, y=0;
 622
 623     /**
 624      * Show the menu
 625      */
 626     if( ( i = menu() ) != MINESWEEPER_WIN ) return i;
 627
 628     /**
 629      * Init game
 630      */
 631     top = (LCD_HEIGHT-height*TileSize)/2;
 632     left = (LCD_WIDTH-width*TileSize)/2;
 633
 634 #ifdef HAVE_TOUCHSCREEN
 635     mine_raster.tl_x = left;
 636     mine_raster.tl_y = top;
 637     mine_raster.width = width*TileSize;
 638     mine_raster.height = height*TileSize;
 639 #endif
 640
 641     rb->srand( *rb->current_tick );
 642     minesweeper_init();
 643     x = 0;
 644     y = 0;
 645
 646     /**
 647      * Play
 648      */
 649     while( true )
 650     {
 651
 652         /* clear the screen buffer */
 653 #ifdef HAVE_LCD_COLOR
 654         rb->lcd_set_background( BackgroundColor );
 655 #endif
 656         rb->lcd_clear_display();
 657
 658         /* display the mine field */
 659         for( i = 0; i < height; i++ )
 660         {
 661             for( j = 0; j < width; j++ )
 662             {
 663                 if( minefield[i][j].known )
 664                 {
 665                     draw_tile( minefield[i][j].neighbors, j, i );
 666                 }
 667                 else if(minefield[i][j].flag)
 668                 {
 669                     draw_tile( Flag, j, i );
 670                 }
 671                 else
 672                 {
 673                     draw_tile( Unknown, j, i );
 674                 }
 675             }
 676         }
 677
 678         /* display the cursor */
 679         invert_tile( x, y );
 680
 681         /* update the screen */
 682         rb->lcd_update();
 683
 684         button = rb->button_get(true);
 685 #ifdef HAVE_TOUCHSCREEN
 686         if(button & BUTTON_TOUCHSCREEN)
 687         {
 688             struct ts_raster_result res;
 689             if(touchscreen_map_raster(&mine_raster, rb->button_get_data() >> 16, rb->button_get_data() & 0xffff, &res) == 1)
 690             {
 691                 button &= ~BUTTON_TOUCHSCREEN;
 692                 lastbutton &= ~BUTTON_TOUCHSCREEN;
 693
 694                 if(button & BUTTON_REPEAT && lastbutton != MINESWP_TOGGLE && lastbutton ^ BUTTON_REPEAT)
 695                     button = MINESWP_TOGGLE;
 696                 else if(button == BUTTON_REL && lastbutton ^ BUTTON_REPEAT)
 697                     button = MINESWP_DISCOVER;
 698                 else
 699                     button |= BUTTON_TOUCHSCREEN;
 700
 701                 x = res.x;
 702                 y = res.y;
 703             }
 704         }
 705 #endif
 706         switch(button)
 707         {
 708             /* quit minesweeper (you really shouldn't use this button ...) */
 709 #ifdef MINESWP_RC_QUIT
 710             case MINESWP_RC_QUIT:
 711 #endif
 712             case MINESWP_QUIT:
 713                 return MINESWEEPER_QUIT;
 714
 715             /* move cursor left */
 716             case MINESWP_LEFT:
 717             case MINESWP_LEFT|BUTTON_REPEAT:
 718                 x = ( x + width - 1 )%width;
 719                 break;
 720
 721             /* move cursor right */
 722             case MINESWP_RIGHT:
 723             case MINESWP_RIGHT|BUTTON_REPEAT:
 724                 x = ( x + 1 )%width;
 725                 break;
 726
 727             /* move cursor down */
 728             case MINESWP_DOWN:
 729             case MINESWP_DOWN|BUTTON_REPEAT:
 730                 y = ( y + 1 )%height;
 731                 break;
 732
 733             /* move cursor up */
 734             case MINESWP_UP:
 735             case MINESWP_UP|BUTTON_REPEAT:
 736                 y = ( y + height - 1 )%height;
 737                 break;
 738
 739             /*move cursor though the entire field*/
 740 #ifdef MINESWP_SCROLLWHEEL
 741             case MINESWP_NEXT:
 742             case MINESWP_NEXT|BUTTON_REPEAT:
 743                 if (x == width -1 ) {
 744                     y = ( y + 1 )%height;
 745                 }
 746                 x = ( x + 1 )%width;
 747                 break;
 748
 749             case MINESWP_PREV:
 750             case MINESWP_PREV|BUTTON_REPEAT:
 751                 if (x == 0) {
 752                     y = ( y + height - 1 )%height;
 753                 }
 754                 x = ( x + width - 1 )%width;
 755                 break;
 756 #endif
 757             /* discover a tile (and it's neighbors if .neighbors == 0) */
 758             case MINESWP_DISCOVER:
 759 #ifdef MINESWP_DISCOVER2
 760             case MINESWP_DISCOVER2:
 761 #endif
 762                 if( minefield[y][x].flag ) break;
 763                 /* we put the mines on the first "click" so that you don't
 764                  * lose on the first "click" */
 765                 if( tiles_left == width*height && no_mines )
 766                     minesweeper_putmines(p,x,y);
 767
 768                 discover(y, x);
 769
 770                 if( minefield[y][x].mine )
 771                 {
 772                     minefield[y][x].known = 1;
 773                     return MINESWEEPER_LOSE;
 774                 }
 775                 tiles_left = count_tiles_left();
 776                 if( tiles_left == mine_num )
 777                 {
 778                     return MINESWEEPER_WIN;
 779                 }
 780                 break;
 781
 782             /* toggle flag under cursor */
 783             case MINESWP_TOGGLE:
 784 #ifdef MINESWP_TOGGLE_PRE
 785                 if( lastbutton != MINESWP_TOGGLE_PRE )
 786                     break;
 787 #endif
 788 #ifdef MINESWP_TOGGLE2
 789             case MINESWP_TOGGLE2:
 790 #endif
 791                 minefield[y][x].flag = ( minefield[y][x].flag + 1 )%2;
 792                 break;
 793
 794             /* show how many mines you think you have found and how many
 795              * there really are on the game */
 796             case MINESWP_INFO:
 797                 if( no_mines )
 798                     break;
 799                 flags_used = count_flags();
 800                 if (flags_used == 1) {
 801                     rb->splashf( HZ*2, "You marked 1 field. There are %d mines.",
 802                                 mine_num );
 803                 }
 804                 else
 805                 {
 806                     rb->splashf( HZ*2, "You marked %d fields. There are %d mines.",
 807                                 flags_used, mine_num );
 808                 }
 809                 break;
 810
 811             default:
 812                 if( rb->default_event_handler( button ) == SYS_USB_CONNECTED )
 813                     return MINESWEEPER_USB;
 814                 break;
 815         }
 816         if( button != BUTTON_NONE )
 817             lastbutton = button;
 818     }
 819
 820 }
 821
 822 /* plugin entry point */
 823 enum plugin_status plugin_start(const void* parameter)
 824 {
 825     bool exit = false;
 826
 827     (void)parameter;
 828 #if LCD_DEPTH > 1
 829     rb->lcd_set_backdrop(NULL);
 830 #endif
 831
 832     while( !exit )
 833     {
 834         switch( minesweeper() )
 835         {
 836             case MINESWEEPER_WIN:
 837                 rb->splash( HZ, "You Win!" );
 838                 rb->lcd_clear_display();
 839                 mine_show();
 840                 break;
 841
 842             case MINESWEEPER_LOSE:
 843                 rb->splash( HZ, "You Lose!" );
 844                 rb->lcd_clear_display();
 845                 mine_show();
 846                 break;
 847
 848             case MINESWEEPER_USB:
 849                 return PLUGIN_USB_CONNECTED;
 850
 851             case MINESWEEPER_QUIT:
 852                 exit = true;
 853                 break;
 854
 855             default:
 856                 break;
 857         }
 858     }
 859
 860     return PLUGIN_OK;
 861 }
 862
 863 #endif