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 == PHILIPS_SA9200_PAD
 228 #   define MINESWP_LEFT     BUTTON_PREV
 229 #   define MINESWP_RIGHT    BUTTON_NEXT
 230 #   define MINESWP_UP       BUTTON_UP
 231 #   define MINESWP_DOWN     BUTTON_DOWN
 232 #   define MINESWP_QUIT     BUTTON_POWER
 233 #   define MINESWP_TOGGLE   BUTTON_RIGHT
 234 #   define MINESWP_DISCOVER BUTTON_PLAY
 235 #   define MINESWP_INFO     BUTTON_MENU
 236
 237 #elif (CONFIG_KEYPAD == ONDAVX747_PAD) || \
 238 CONFIG_KEYPAD == ONDAVX777_PAD || \
 239 CONFIG_KEYPAD == MROBE500_PAD
 240 #   define MINESWP_QUIT     BUTTON_POWER
 241
 242 #elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
 243 #   define MINESWP_LEFT     BUTTON_LEFT
 244 #   define MINESWP_RIGHT    BUTTON_RIGHT
 245 #   define MINESWP_UP       BUTTON_UP
 246 #   define MINESWP_DOWN     BUTTON_DOWN
 247 #   define MINESWP_QUIT     BUTTON_REC
 248 #   define MINESWP_TOGGLE   BUTTON_PLAY
 249 #   define MINESWP_DISCOVER BUTTON_REW
 250 #   define MINESWP_INFO     BUTTON_FFWD
 251
 252 #else
 253 #error No keymap defined!
 254 #endif
 255
 256 #ifdef HAVE_TOUCHSCREEN
 257 #ifndef MINESWP_QUIT
 258 #   define MINESWP_QUIT     BUTTON_TOPLEFT
 259 #endif
 260 #ifndef MINESWP_LEFT
 261 #   define MINESWP_LEFT     BUTTON_MIDLEFT
 262 #endif
 263 #ifndef MINESWP_RIGHT
 264 #   define MINESWP_RIGHT    BUTTON_MIDRIGHT
 265 #endif
 266 #ifndef MINESWP_UP
 267 #   define MINESWP_UP       BUTTON_TOPMIDDLE
 268 #endif
 269 #ifndef MINESWP_DOWN
 270 #   define MINESWP_DOWN     BUTTON_BOTTOMMIDDLE
 271 #endif
 272 #ifndef MINESWP_TOGGLE
 273 #   define MINESWP_TOGGLE   BUTTON_CENTER
 274 #endif
 275 #ifndef MINESWP_DISCOVER
 276 #   define MINESWP_DISCOVER BUTTON_BOTTOMLEFT
 277 #endif
 278 #ifndef MINESWP_INFO
 279 #   define MINESWP_INFO     BUTTON_BOTTOMRIGHT
 280 #endif
 281 #endif
 282
 283 extern const fb_data minesweeper_tiles[];
 284
 285 #ifdef HAVE_LCD_COLOR
 286 #   if ( LCD_HEIGHT * LCD_WIDTH ) / ( 16 * 16 ) >= 130
 287         /* We want to have at least 130 tiles on the screen */
 288 #       define TileSize 16
 289 #   elif ( LCD_HEIGHT * LCD_WIDTH ) / ( 12 * 12 ) >= 130
 290 #       define TileSize 12
 291 #   else
 292 #       define TileSize 10
 293 #   endif
 294 #   define BackgroundColor LCD_RGBPACK( 128, 128, 128 )
 295 #elif LCD_DEPTH > 1
 296 #   define TileSize 12
 297 #else
 298 #   define TileSize 8
 299 #endif
 300
 301 #define Mine         9
 302 #define Flag         10
 303 #define Unknown      11
 304 #define ExplodedMine 12
 305
 306 #define draw_tile( num, x, y ) \
 307     rb->lcd_bitmap_part( minesweeper_tiles, 0, num * TileSize, \
 308                          TileSize, left+x*TileSize, top+y*TileSize, \
 309                          TileSize, TileSize )
 310
 311 #define invert_tile( x, y ) \
 312     rb->lcd_set_drawmode(DRMODE_COMPLEMENT); \
 313     rb->lcd_fillrect( left+x*TileSize, top+y*TileSize, TileSize, TileSize ); \
 314     rb->lcd_set_drawmode(DRMODE_SOLID);
 315
 316
 317 /* the tile struct
 318  * if there is a mine, mine is true
 319  * if tile is known by player, known is true
 320  * if tile has a flag, flag is true
 321  * neighbors is the total number of mines arround tile
 322  */
 323 typedef struct tile
 324 {
 325     unsigned char mine : 1;
 326     unsigned char known : 1;
 327     unsigned char flag : 1;
 328     unsigned char neighbors : 4;
 329 } tile;
 330
 331 /* the height and width of the field */
 332 #define MAX_HEIGHT (LCD_HEIGHT/TileSize)
 333 #define MAX_WIDTH  (LCD_WIDTH/TileSize)
 334 int height = MAX_HEIGHT;
 335 int width = MAX_WIDTH;
 336 int top;
 337 int left;
 338
 339 /* The Minefield. Caution it is defined as Y, X! Not the opposite. */
 340 tile minefield[MAX_HEIGHT][MAX_WIDTH];
 341
 342 /* total number of mines on the game */
 343 int mine_num = 0;
 344
 345 /* percentage of mines on minefield used during generation */
 346 int p = 16;
 347
 348 /* number of tiles left on the game */
 349 int tiles_left;
 350
 351 /* number of used flags on the game */
 352 int flags_used;
 353
 354 /* Because mines are set after the first move... */
 355 bool no_mines = true;
 356
 357 /* We need a stack (created on discover()) for the cascade algorithm. */
 358 int stack_pos = 0;
 359
 360 /* a usefull string for snprintf */
 361 char str[30];
 362
 363 #ifdef HAVE_TOUCHSCREEN
 364
 365 #include "lib/pluginlib_touchscreen.h"
 366 static struct ts_raster mine_raster = { 0, 0, MAX_WIDTH, MAX_HEIGHT, TileSize, TileSize };
 367 #endif
 368
 369
 370 void push( int *stack, int y, int x )
 371 {
 372     if( stack_pos <= height*width )
 373     {
 374         stack[++stack_pos] = y;
 375         stack[++stack_pos] = x;
 376     }
 377 }
 378
 379 /* Unveil tiles and push them to stack if they are empty. */
 380 void unveil( int *stack, int y, int x )
 381 {
 382     if( x < 0 || y < 0 || x > width - 1 || y > height - 1
 383        || minefield[y][x].known
 384        || minefield[y][x].mine || minefield[y][x].flag ) return;
 385
 386     minefield[y][x].known = 1;
 387
 388     if( minefield[y][x].neighbors == 0 )
 389         push( stack, y, x );
 390 }
 391
 392 void discover( int y, int x )
 393 {
 394     int stack[height*width];
 395
 396     /* Selected tile. */
 397     if( x < 0 || y < 0 || x > width - 1 || y > height - 1
 398        || minefield[y][x].known
 399        || minefield[y][x].mine || minefield[y][x].flag ) return;
 400
 401     minefield[y][x].known = 1;
 402     /* Exit if the tile is not empty. (no mines nearby) */
 403     if( minefield[y][x].neighbors ) return;
 404
 405     push( stack, y, x );
 406
 407     /* Scan all nearby tiles. If we meet a tile with a number we just unveil
 408      * it. If we meet an empty tile, we push the location in stack. For each
 409      * location in stack we do the same thing. (scan again all nearby tiles)
 410      */
 411     while( stack_pos )
 412     {
 413         /* Pop x, y from stack. */
 414         x = stack[stack_pos--];
 415         y = stack[stack_pos--];
 416
 417         unveil( stack, y-1, x-1 );
 418         unveil( stack, y-1, x   );
 419         unveil( stack, y-1, x+1 );
 420         unveil( stack, y,   x+1 );
 421         unveil( stack, y+1, x+1 );
 422         unveil( stack, y+1, x   );
 423         unveil( stack, y+1, x-1 );
 424         unveil( stack, y,   x-1 );
 425     }
 426 }
 427
 428 /* Reset the whole board for a new game. */
 429 void minesweeper_init( void )
 430 {
 431     int i,j;
 432
 433     for( i = 0; i < MAX_HEIGHT; i++ )
 434     {
 435         for( j = 0; j < MAX_WIDTH; j++ )
 436         {
 437             minefield[i][j].known = 0;
 438             minefield[i][j].flag = 0;
 439             minefield[i][j].mine = 0;
 440             minefield[i][j].neighbors = 0;
 441         }
 442     }
 443     no_mines = true;
 444     tiles_left = width*height;
 445 }
 446
 447
 448 /* put mines on the mine field */
 449 /* there is p% chance that a tile is a mine */
 450 /* if the tile has coordinates (x,y), then it can't be a mine */
 451 void minesweeper_putmines( int p, int x, int y )
 452 {
 453     int i,j;
 454
 455     mine_num = 0;
 456     for( i = 0; i < height; i++ )
 457     {
 458         for( j = 0; j < width; j++ )
 459         {
 460             if( rb->rand()%100 < p && !( y==i && x==j ) )
 461             {
 462                 minefield[i][j].mine = 1;
 463                 mine_num++;
 464             }
 465             else
 466             {
 467                 minefield[i][j].mine = 0;
 468             }
 469             minefield[i][j].neighbors = 0;
 470         }
 471     }
 472
 473     /* we need to compute the neighbor element for each tile */
 474     for( i = 0; i < height; i++ )
 475     {
 476         for( j = 0; j < width; j++ )
 477         {
 478             if( i > 0 )
 479             {
 480                 if( j > 0 )
 481                     minefield[i][j].neighbors += minefield[i-1][j-1].mine;
 482                 minefield[i][j].neighbors += minefield[i-1][j].mine;
 483                 if( j < width - 1 )
 484                     minefield[i][j].neighbors += minefield[i-1][j+1].mine;
 485             }
 486             if( j > 0 )
 487                 minefield[i][j].neighbors += minefield[i][j-1].mine;
 488             if( j < width - 1 )
 489                 minefield[i][j].neighbors += minefield[i][j+1].mine;
 490             if( i < height - 1 )
 491             {
 492                 if( j > 0 )
 493                     minefield[i][j].neighbors += minefield[i+1][j-1].mine;
 494                 minefield[i][j].neighbors += minefield[i+1][j].mine;
 495                 if( j < width - 1 )
 496                     minefield[i][j].neighbors += minefield[i+1][j+1].mine;
 497             }
 498         }
 499     }
 500
 501     no_mines = false;
 502
 503     /* In case the user is lucky and there are no mines positioned. */
 504     if( !mine_num && height*width != 1 )
 505     {
 506         minesweeper_putmines(p, x, y);
 507     }
 508 }
 509
 510 /* A function that will uncover all the board, when the user wins or loses.
 511    can easily be expanded, (just a call assigned to a button) as a solver. */
 512 void mine_show( void )
 513 {
 514     int i, j, button;
 515
 516     for( i = 0; i < height; i++ )
 517     {
 518         for( j = 0; j < width; j++ )
 519         {
 520             if( minefield[i][j].mine )
 521             {
 522                 if( minefield[i][j].known )
 523                 {
 524                     draw_tile( ExplodedMine, j, i );
 525                 }
 526                 else
 527                 {
 528                     draw_tile( Mine, j, i );
 529                 }
 530             }
 531             else
 532             {
 533                 draw_tile( minefield[i][j].neighbors, j, i );
 534             }
 535         }
 536     }
 537     rb->lcd_update();
 538
 539     do
 540         button = rb->button_get(true);
 541     while( ( button == BUTTON_NONE )
 542            || ( button & (BUTTON_REL|BUTTON_REPEAT) ) );
 543 #ifdef HAVE_TOUCHSCREEN
 544     button = BUTTON_NONE;
 545 #endif
 546 }
 547
 548 int count_tiles_left( void )
 549 {
 550     int tiles_left = 0;
 551     int i, j;
 552     for( i = 0; i < height; i++ )
 553         for( j = 0; j < width; j++ )
 554              if( minefield[i][j].known == 0 )
 555                 tiles_left++;
 556     return tiles_left;
 557 }
 558
 559 int count_flags( void )
 560 {
 561     int flags_used = 0;
 562     int i, j;
 563     for( i = 0; i < height; i++ )
 564         for( j = 0; j < width; j++ )
 565              if( minefield[i][j].flag == 1 )
 566                 flags_used++;
 567     return flags_used;
 568 }
 569
 570 /* welcome screen where player can chose mine percentage */
 571 enum minesweeper_status menu( void )
 572 {
 573     int selection = 0, result = MINESWEEPER_QUIT;
 574     bool menu_quit = false;
 575
 576     MENUITEM_STRINGLIST( menu, "Minesweeper Menu", NULL, "Play Minesweeper",
 577                          "Mine Percentage", "Number of Rows",
 578                          "Number of Columns", "Playback Control", "Quit" );
 579
 580 #ifdef HAVE_LCD_COLOR
 581     rb->lcd_set_foreground( rb->global_settings->fg_color );
 582     rb->lcd_set_background( rb->global_settings->bg_color );
 583 #endif
 584
 585     while( !menu_quit )
 586     {
 587         switch( rb->do_menu( &menu, &selection, NULL, false ) )
 588         {
 589             case 0:
 590                 result = MINESWEEPER_WIN; /* start playing */
 591                 menu_quit = true;
 592                 break;
 593
 594             case 1:
 595                 rb->set_int( "Mine Percentage", "%", UNIT_INT, &p, NULL,
 596                              1, 2, 98, NULL );
 597                 break;
 598
 599             case 2:
 600                 rb->set_int( "Number of Rows", "", UNIT_INT, &height, NULL,
 601                              1, 1, MAX_HEIGHT, NULL );
 602                 break;
 603
 604             case 3:
 605                 rb->set_int( "Number of Columns", "", UNIT_INT, &width, NULL,
 606                              1, 1, MAX_WIDTH, NULL );
 607                 break;
 608
 609             case 4:
 610                 playback_control( NULL );
 611                 break;
 612
 613             default:
 614                 result = MINESWEEPER_QUIT; /* quit program */
 615                 menu_quit = true;
 616                 break;
 617         }
 618     }
 619
 620     return result;
 621 }
 622
 623 /* the big and ugly game function */
 624 enum minesweeper_status minesweeper( void )
 625 {
 626     int i, j;
 627     int button;
 628     int lastbutton = BUTTON_NONE;
 629
 630     /* the cursor coordinates */
 631     int x=0, y=0;
 632
 633     /**
 634      * Show the menu
 635      */
 636     if( ( i = menu() ) != MINESWEEPER_WIN ) return i;
 637
 638     /**
 639      * Init game
 640      */
 641     top = (LCD_HEIGHT-height*TileSize)/2;
 642     left = (LCD_WIDTH-width*TileSize)/2;
 643
 644 #ifdef HAVE_TOUCHSCREEN
 645     mine_raster.tl_x = left;
 646     mine_raster.tl_y = top;
 647     mine_raster.width = width*TileSize;
 648     mine_raster.height = height*TileSize;
 649 #endif
 650
 651     rb->srand( *rb->current_tick );
 652     minesweeper_init();
 653     x = 0;
 654     y = 0;
 655
 656     /**
 657      * Play
 658      */
 659     while( true )
 660     {
 661
 662         /* clear the screen buffer */
 663 #ifdef HAVE_LCD_COLOR
 664         rb->lcd_set_background( BackgroundColor );
 665 #endif
 666         rb->lcd_clear_display();
 667
 668         /* display the mine field */
 669         for( i = 0; i < height; i++ )
 670         {
 671             for( j = 0; j < width; j++ )
 672             {
 673                 if( minefield[i][j].known )
 674                 {
 675                     draw_tile( minefield[i][j].neighbors, j, i );
 676                 }
 677                 else if(minefield[i][j].flag)
 678                 {
 679                     draw_tile( Flag, j, i );
 680                 }
 681                 else
 682                 {
 683                     draw_tile( Unknown, j, i );
 684                 }
 685             }
 686         }
 687
 688         /* display the cursor */
 689         invert_tile( x, y );
 690
 691         /* update the screen */
 692         rb->lcd_update();
 693
 694         button = rb->button_get(true);
 695 #ifdef HAVE_TOUCHSCREEN
 696         if(button & BUTTON_TOUCHSCREEN)
 697         {
 698             struct ts_raster_result res;
 699             if(touchscreen_map_raster(&mine_raster, rb->button_get_data() >> 16, rb->button_get_data() & 0xffff, &res) == 1)
 700             {
 701                 button &= ~BUTTON_TOUCHSCREEN;
 702                 lastbutton &= ~BUTTON_TOUCHSCREEN;
 703
 704                 if(button & BUTTON_REPEAT && lastbutton != MINESWP_TOGGLE && lastbutton ^ BUTTON_REPEAT)
 705                     button = MINESWP_TOGGLE;
 706                 else if(button == BUTTON_REL && lastbutton ^ BUTTON_REPEAT)
 707                     button = MINESWP_DISCOVER;
 708                 else
 709                     button |= BUTTON_TOUCHSCREEN;
 710
 711                 x = res.x;
 712                 y = res.y;
 713             }
 714         }
 715 #endif
 716         switch(button)
 717         {
 718             /* quit minesweeper (you really shouldn't use this button ...) */
 719 #ifdef MINESWP_RC_QUIT
 720             case MINESWP_RC_QUIT:
 721 #endif
 722             case MINESWP_QUIT:
 723                 return MINESWEEPER_QUIT;
 724
 725             /* move cursor left */
 726             case MINESWP_LEFT:
 727             case MINESWP_LEFT|BUTTON_REPEAT:
 728                 x = ( x + width - 1 )%width;
 729                 break;
 730
 731             /* move cursor right */
 732             case MINESWP_RIGHT:
 733             case MINESWP_RIGHT|BUTTON_REPEAT:
 734                 x = ( x + 1 )%width;
 735                 break;
 736
 737             /* move cursor down */
 738             case MINESWP_DOWN:
 739             case MINESWP_DOWN|BUTTON_REPEAT:
 740                 y = ( y + 1 )%height;
 741                 break;
 742
 743             /* move cursor up */
 744             case MINESWP_UP:
 745             case MINESWP_UP|BUTTON_REPEAT:
 746                 y = ( y + height - 1 )%height;
 747                 break;
 748
 749             /*move cursor though the entire field*/
 750 #ifdef MINESWP_SCROLLWHEEL
 751             case MINESWP_NEXT:
 752             case MINESWP_NEXT|BUTTON_REPEAT:
 753                 if (x == width -1 ) {
 754                     y = ( y + 1 )%height;
 755                 }
 756                 x = ( x + 1 )%width;
 757                 break;
 758
 759             case MINESWP_PREV:
 760             case MINESWP_PREV|BUTTON_REPEAT:
 761                 if (x == 0) {
 762                     y = ( y + height - 1 )%height;
 763                 }
 764                 x = ( x + width - 1 )%width;
 765                 break;
 766 #endif
 767             /* discover a tile (and it's neighbors if .neighbors == 0) */
 768             case MINESWP_DISCOVER:
 769 #ifdef MINESWP_DISCOVER2
 770             case MINESWP_DISCOVER2:
 771 #endif
 772                 if( minefield[y][x].flag ) break;
 773                 /* we put the mines on the first "click" so that you don't
 774                  * lose on the first "click" */
 775                 if( tiles_left == width*height && no_mines )
 776                     minesweeper_putmines(p,x,y);
 777
 778                 discover(y, x);
 779
 780                 if( minefield[y][x].mine )
 781                 {
 782                     minefield[y][x].known = 1;
 783                     return MINESWEEPER_LOSE;
 784                 }
 785                 tiles_left = count_tiles_left();
 786                 if( tiles_left == mine_num )
 787                 {
 788                     return MINESWEEPER_WIN;
 789                 }
 790                 break;
 791
 792             /* toggle flag under cursor */
 793             case MINESWP_TOGGLE:
 794 #ifdef MINESWP_TOGGLE_PRE
 795                 if( lastbutton != MINESWP_TOGGLE_PRE )
 796                     break;
 797 #endif
 798 #ifdef MINESWP_TOGGLE2
 799             case MINESWP_TOGGLE2:
 800 #endif
 801                 minefield[y][x].flag = ( minefield[y][x].flag + 1 )%2;
 802                 break;
 803
 804             /* show how many mines you think you have found and how many
 805              * there really are on the game */
 806             case MINESWP_INFO:
 807                 if( no_mines )
 808                     break;
 809                 flags_used = count_flags();
 810                 if (flags_used == 1) {
 811                     rb->splashf( HZ*2, "You marked 1 field. There are %d mines.",
 812                                 mine_num );
 813                 }
 814                 else
 815                 {
 816                     rb->splashf( HZ*2, "You marked %d fields. There are %d mines.",
 817                                 flags_used, mine_num );
 818                 }
 819                 break;
 820
 821             default:
 822                 if( rb->default_event_handler( button ) == SYS_USB_CONNECTED )
 823                     return MINESWEEPER_USB;
 824                 break;
 825         }
 826         if( button != BUTTON_NONE )
 827             lastbutton = button;
 828     }
 829
 830 }
 831
 832 /* plugin entry point */
 833 enum plugin_status plugin_start(const void* parameter)
 834 {
 835     bool exit = false;
 836
 837     (void)parameter;
 838 #if LCD_DEPTH > 1
 839     rb->lcd_set_backdrop(NULL);
 840 #endif
 841
 842     while( !exit )
 843     {
 844         switch( minesweeper() )
 845         {
 846             case MINESWEEPER_WIN:
 847                 rb->splash( HZ, "You Win!" );
 848                 rb->lcd_clear_display();
 849                 mine_show();
 850                 break;
 851
 852             case MINESWEEPER_LOSE:
 853                 rb->splash( HZ, "You Lose!" );
 854                 rb->lcd_clear_display();
 855                 mine_show();
 856                 break;
 857
 858             case MINESWEEPER_USB:
 859                 return PLUGIN_USB_CONNECTED;
 860
 861             case MINESWEEPER_QUIT:
 862                 exit = true;
 863                 break;
 864
 865             default:
 866                 break;
 867         }
 868     }
 869
 870     return PLUGIN_OK;
 871 }
 872
 873 #endif