apps/plugins/clix.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008-2009 Rene Peinthor
  11  * Contribution from Johannes Schwarz (new menu system, use of highscore lib)
  12  *
  13  * All files in this archive are subject to the GNU General Public License.
  14  * See the file COPYING in the source tree root for full license agreement.
  15  *
  16  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  17  * KIND, either express or implied.
  18  *
  19  ****************************************************************************/
  20 #include "plugin.h"
  21 #include "lib/highscore.h"
  22 #include "lib/playback_control.h"
  23 #include "lib/display_text.h"
  24
  25 PLUGIN_HEADER
  26
  27 #if (CONFIG_KEYPAD == SANSA_E200_PAD)
  28 #define CLIX_BUTTON_QUIT        BUTTON_POWER
  29 #define CLIX_BUTTON_UP          BUTTON_UP
  30 #define CLIX_BUTTON_DOWN        BUTTON_DOWN
  31 #define CLIX_BUTTON_SCROLL_FWD  BUTTON_SCROLL_FWD
  32 #define CLIX_BUTTON_SCROLL_BACK BUTTON_SCROLL_BACK
  33 #define CLIX_BUTTON_LEFT        BUTTON_LEFT
  34 #define CLIX_BUTTON_RIGHT       BUTTON_RIGHT
  35 #define CLIX_BUTTON_CLICK       BUTTON_SELECT
  36
  37 #elif (CONFIG_KEYPAD == SANSA_CLIP_PAD)
  38 #define CLIX_BUTTON_QUIT        BUTTON_POWER
  39 #define CLIX_BUTTON_UP          BUTTON_UP
  40 #define CLIX_BUTTON_DOWN        BUTTON_DOWN
  41 #define CLIX_BUTTON_LEFT        BUTTON_LEFT
  42 #define CLIX_BUTTON_RIGHT       BUTTON_RIGHT
  43 #define CLIX_BUTTON_CLICK       BUTTON_SELECT
  44
  45 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
  46 #define CLIX_BUTTON_QUIT        BUTTON_HOME
  47 #define CLIX_BUTTON_UP          BUTTON_UP
  48 #define CLIX_BUTTON_DOWN        BUTTON_DOWN
  49 #define CLIX_BUTTON_SCROLL_FWD  BUTTON_SCROLL_FWD
  50 #define CLIX_BUTTON_SCROLL_BACK BUTTON_SCROLL_BACK
  51 #define CLIX_BUTTON_LEFT        BUTTON_LEFT
  52 #define CLIX_BUTTON_RIGHT       BUTTON_RIGHT
  53 #define CLIX_BUTTON_CLICK       BUTTON_SELECT
  54
  55 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
  56 #define CLIX_BUTTON_QUIT          BUTTON_POWER
  57 #define CLIX_BUTTON_UP            BUTTON_UP
  58 #define CLIX_BUTTON_DOWN          BUTTON_DOWN
  59 #define CLIX_BUTTON_SCROLL_FWD    BUTTON_VOL_UP
  60 #define CLIX_BUTTON_SCROLL_BACK   BUTTON_VOL_DOWN
  61 #define CLIX_BUTTON_LEFT          BUTTON_LEFT
  62 #define CLIX_BUTTON_RIGHT         BUTTON_RIGHT
  63 #define CLIX_BUTTON_CLICK         BUTTON_SELECT
  64
  65 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  66       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  67       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  68 #define CLIX_BUTTON_QUIT        (BUTTON_SELECT | BUTTON_MENU)
  69 #define CLIX_BUTTON_UP          BUTTON_MENU
  70 #define CLIX_BUTTON_DOWN        BUTTON_PLAY
  71 #define CLIX_BUTTON_SCROLL_FWD  BUTTON_SCROLL_FWD
  72 #define CLIX_BUTTON_SCROLL_BACK BUTTON_SCROLL_BACK
  73 #define CLIX_BUTTON_CLICK       BUTTON_SELECT
  74 #define CLIX_BUTTON_RIGHT       BUTTON_RIGHT
  75 #define CLIX_BUTTON_LEFT        BUTTON_LEFT
  76
  77 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  78 #define CLIX_BUTTON_QUIT    BUTTON_POWER
  79 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
  80 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
  81 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
  82 #define CLIX_BUTTON_UP      BUTTON_UP
  83 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
  84
  85 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
  86 #define CLIX_BUTTON_QUIT    BUTTON_BACK
  87 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
  88 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
  89 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
  90 #define CLIX_BUTTON_UP      BUTTON_UP
  91 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
  92
  93 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
  94 #define CLIX_BUTTON_QUIT    BUTTON_POWER
  95 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
  96 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
  97 #define CLIX_BUTTON_CLICK   BUTTON_PLAY
  98 #define CLIX_BUTTON_UP      BUTTON_SCROLL_UP
  99 #define CLIX_BUTTON_DOWN    BUTTON_SCROLL_DOWN
 100
 101 #elif CONFIG_KEYPAD == IAUDIO67_PAD
 102 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 103 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 104 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 105 #define CLIX_BUTTON_CLICK   BUTTON_PLAY
 106 #define CLIX_BUTTON_UP      BUTTON_STOP
 107 #define CLIX_BUTTON_DOWN    BUTTON_PLAY
 108
 109 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 110 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 111 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 112 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 113 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
 114 #define CLIX_BUTTON_UP      BUTTON_UP
 115 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 116
 117 #elif (CONFIG_KEYPAD == IRIVER_H300_PAD)
 118 #define CLIX_BUTTON_QUIT    BUTTON_OFF
 119 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 120 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 121 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
 122 #define CLIX_BUTTON_UP      BUTTON_UP
 123 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 124
 125 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 126 #define CLIX_BUTTON_QUIT    BUTTON_BACK
 127 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 128 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 129 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
 130 #define CLIX_BUTTON_UP      BUTTON_UP
 131 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 132
 133 #elif (CONFIG_KEYPAD == PHILIPS_HDD1630_PAD)
 134 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 135 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 136 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 137 #define CLIX_BUTTON_CLICK   BUTTON_SELECT
 138 #define CLIX_BUTTON_UP      BUTTON_UP
 139 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 140
 141 #elif (CONFIG_KEYPAD == PHILIPS_SA9200_PAD)
 142 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 143 #define CLIX_BUTTON_LEFT    BUTTON_PREV
 144 #define CLIX_BUTTON_RIGHT   BUTTON_NEXT
 145 #define CLIX_BUTTON_CLICK   BUTTON_PLAY
 146 #define CLIX_BUTTON_UP      BUTTON_UP
 147 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 148
 149 #elif CONFIG_KEYPAD == COWON_D2_PAD
 150 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 151
 152 #elif (CONFIG_KEYPAD == ONDAVX747_PAD)
 153 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 154 #define CLIX_BUTTON_CLICK   BUTTON_MENU
 155 #elif (CONFIG_KEYPAD == ONDAVX777_PAD)
 156 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 157
 158 #elif (CONFIG_KEYPAD == MROBE500_PAD)
 159 #define CLIX_BUTTON_QUIT    BUTTON_POWER
 160
 161 #elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
 162 #define CLIX_BUTTON_QUIT    BUTTON_REC
 163 #define CLIX_BUTTON_LEFT    BUTTON_LEFT
 164 #define CLIX_BUTTON_RIGHT   BUTTON_RIGHT
 165 #define CLIX_BUTTON_CLICK   BUTTON_PLAY
 166 #define CLIX_BUTTON_UP      BUTTON_UP
 167 #define CLIX_BUTTON_DOWN    BUTTON_DOWN
 168
 169 #elif (CONFIG_KEYPAD == PBELL_VIBE500_PAD)
 170 #define CLIX_BUTTON_QUIT        BUTTON_REC
 171 #define CLIX_BUTTON_UP          BUTTON_UP
 172 #define CLIX_BUTTON_DOWN        BUTTON_DOWN
 173 #define CLIX_BUTTON_SCROLL_FWD  BUTTON_PLAY
 174 #define CLIX_BUTTON_SCROLL_BACK BUTTON_MENU
 175 #define CLIX_BUTTON_LEFT        BUTTON_PREV
 176 #define CLIX_BUTTON_RIGHT       BUTTON_NEXT
 177 #define CLIX_BUTTON_CLICK       BUTTON_OK
 178
 179 #else
 180 #error "no keymap"
 181 #endif
 182
 183 #ifndef CLIX_BUTTON_CLICK
 184 #define CLIX_BUTTON_CLICK   BUTTON_CENTER
 185 #endif
 186
 187 #define SCORE_FILE PLUGIN_GAMES_DIR "/clix.score"
 188 #define NUM_SCORES 5
 189 struct highscore highscores[NUM_SCORES];
 190
 191 #define NUM_LEVELS 9
 192 #define BLINK_TICKCOUNT 25
 193 #define MARGIN 5
 194
 195 #if (LCD_WIDTH >= LCD_HEIGHT)
 196 #define BOARD_WIDTH  18
 197 #define BOARD_HEIGHT 12
 198 #else
 199 #define BOARD_WIDTH  12
 200 #define BOARD_HEIGHT 18
 201 #endif
 202
 203 #if (LCD_WIDTH>=480)
 204 #if (LCD_WIDTH/BOARD_WIDTH) > (LCD_HEIGHT/BOARD_HEIGHT)
 205 #define CELL_SIZE (LCD_HEIGHT/BOARD_HEIGHT)
 206 #else
 207 #define CELL_SIZE (LCD_WIDTH/BOARD_WIDTH)
 208 #endif
 209
 210 #elif (LCD_WIDTH >= 306 && LCD_HEIGHT>= 204)
 211 #define CELL_SIZE 16
 212
 213 #elif (LCD_WIDTH >= 270 && LCD_HEIGHT>= 180)
 214 #define CELL_SIZE 14
 215
 216 #elif (LCD_WIDTH >= 234 && LCD_HEIGHT>= 156)
 217 #define CELL_SIZE 12
 218
 219 #elif (LCD_WIDTH >= 198 && LCD_HEIGHT>= 132)
 220 #define CELL_SIZE 10
 221
 222 #elif (LCD_WIDTH >= 162 && LCD_HEIGHT>= 108)
 223 #define CELL_SIZE 8
 224
 225 #elif (LCD_WIDTH >= 126 && LCD_HEIGHT>= 84)
 226 #define CELL_SIZE 6
 227
 228 #elif (LCD_WIDTH >= 60)
 229 #define CELL_SIZE 4
 230 #endif
 231
 232 #define XYPOS(x,y) ((y) * BOARD_WIDTH + x)
 233 #define XOFS LCD_WIDTH/2-(BOARD_WIDTH * (CELL_SIZE + 1)/2)
 234 #define YOFS (LCD_HEIGHT+10)/2-(BOARD_HEIGHT * (CELL_SIZE + 1)/2)
 235
 236
 237 struct clix_game_state_t {
 238     int level; /* current level */
 239     int score; /* current game score */
 240     int x,y; /* current positions of the cursor */
 241     int board[BOARD_WIDTH * BOARD_HEIGHT]; /* play board*/
 242     /* state of selected fields,maybe we can store this in the play board too */
 243     bool board_selected[ BOARD_WIDTH * BOARD_HEIGHT];
 244     int selected_count;
 245     int status;
 246     bool blink; /* true if selected CELLS are currently white */
 247 };
 248
 249 /* game state enum */
 250 enum {
 251     CLIX_GAMEOVER = -1,
 252     CLIX_CONTINUE,
 253     CLIX_CLEARED
 254 };
 255
 256 /* cell color enum */
 257 enum {
 258     CC_BLACK = -1,
 259     CC_BLUE,
 260     CC_GREEN,
 261     CC_RED,
 262     CC_YELLOW,
 263     CC_ORANGE,
 264     CC_CYAN,
 265     CC_BROWN,
 266     CC_PINK,
 267     CC_DARK_BLUE,
 268     CC_DARK_GREEN
 269 };
 270
 271 /*  recursive function to check if a neighbour cell is of the same color
 272     if so call the function with the neighbours position
 273 */
 274 static void clix_set_selected(struct clix_game_state_t* state,
 275                                 const int x, const int y)
 276 {
 277     state->selected_count++;
 278     state->board_selected[ XYPOS( x, y)] = true;
 279     int current_color = state->board[ XYPOS( x, y)];
 280
 281     if( (x - 1) >= 0 &&
 282         state->board[ XYPOS( x - 1, y)] == current_color &&
 283         state->board_selected[ XYPOS(x - 1, y)] == false)
 284         clix_set_selected( state, x - 1, y);
 285
 286     if( (y + 1) < BOARD_HEIGHT &&
 287         state->board[ XYPOS( x, y + 1)] == current_color &&
 288         state->board_selected[ XYPOS(x, y + 1)] == false)
 289         clix_set_selected( state, x, y + 1);
 290
 291     if( (x + 1) < BOARD_WIDTH &&
 292         state->board[ XYPOS( x + 1, y)] == current_color &&
 293         state->board_selected[ XYPOS(x + 1, y)] == false)
 294         clix_set_selected( state, x + 1, y);
 295
 296     if( (y - 1) >= 0 &&
 297         state->board[ XYPOS( x, y - 1)] == current_color &&
 298         state->board_selected[ XYPOS(x, y - 1)] == false)
 299         clix_set_selected( state, x, y - 1);
 300 }
 301
 302 /* updates "blinking" cells by finding out which one is a valid neighbours */
 303 static void clix_update_selected(struct clix_game_state_t* state)
 304 {
 305     int i;
 306
 307     for( i = 0; i < BOARD_WIDTH * BOARD_HEIGHT; ++i)
 308     {
 309         state->board_selected[i] = false;
 310     }
 311     state->selected_count = 0;
 312
 313     /* recursion starts here */
 314     clix_set_selected( state, state->x, state->y);
 315 }
 316
 317 /* inits the board with new random colors according to the level */
 318 static void clix_init_new_level(struct clix_game_state_t* state)
 319 {
 320     int i;
 321     int r;
 322
 323     state->y = BOARD_HEIGHT / 2;
 324     state->x = BOARD_WIDTH / 2;
 325
 326     rb->srand( *rb->current_tick);
 327     /* create a random colored board, according to the current level */
 328     for(i = 0; i < BOARD_HEIGHT * BOARD_WIDTH; ++i)
 329     {
 330         r = rb->rand() % (state->level + 1);
 331         state->board[i] = r;
 332     }
 333 }
 334
 335 /* this inits the game state structure */
 336 static void clix_init(struct clix_game_state_t* state)
 337 {
 338     state->level = 1;
 339     state->score = 0;
 340     state->blink = false;
 341     state->status = CLIX_CONTINUE;
 342
 343     clix_init_new_level(state);
 344
 345     clix_update_selected(state);
 346 }
 347
 348 /* Function for drawing a cell */
 349 static void clix_draw_cell(struct clix_game_state_t* state, const int x, const int y)
 350 {
 351     int realx = XOFS;
 352     int realy = YOFS;
 353
 354     realx += x * (CELL_SIZE + 1);
 355     realy += y * (CELL_SIZE + 1);
 356
 357     if (state->blink && state->board_selected[ XYPOS( x, y)]) {
 358         rb->lcd_set_foreground(LCD_WHITE);
 359     } else {
 360         switch (state->board[ XYPOS( x, y)])
 361         {
 362             case CC_BLUE:
 363                 rb->lcd_set_foreground( LCD_RGBPACK( 25, 25, 255));
 364             break;
 365             case CC_GREEN:
 366                 rb->lcd_set_foreground( LCD_RGBPACK( 25, 255, 25));
 367             break;
 368             case CC_RED:
 369                 rb->lcd_set_foreground( LCD_RGBPACK( 255, 25, 25));
 370             break;
 371             case CC_YELLOW:
 372                 rb->lcd_set_foreground( LCD_RGBPACK( 225, 225, 25));
 373             break;
 374             case CC_ORANGE:
 375                 rb->lcd_set_foreground( LCD_RGBPACK( 230, 140, 15));
 376             break;
 377             case CC_CYAN:
 378                 rb->lcd_set_foreground( LCD_RGBPACK( 25, 245, 230));
 379             break;
 380             case CC_BROWN:
 381                 rb->lcd_set_foreground( LCD_RGBPACK(139, 69, 19));
 382             break;
 383             case CC_PINK:
 384                 rb->lcd_set_foreground( LCD_RGBPACK(255, 105, 180));
 385             break;
 386             case CC_DARK_GREEN:
 387                 rb->lcd_set_foreground( LCD_RGBPACK( 0, 100, 0));
 388             break;
 389             case CC_DARK_BLUE:
 390                 rb->lcd_set_foreground( LCD_RGBPACK( 280, 32, 144));
 391             break;
 392             default:
 393                 rb->lcd_set_foreground( LCD_BLACK);
 394             break;
 395         }
 396     }
 397
 398     rb->lcd_fillrect( realx, realy, CELL_SIZE, CELL_SIZE);
 399
 400     /* draw cursor */
 401     if ( x == state->x && y == state->y) {
 402         rb->lcd_set_foreground( LCD_WHITE);
 403         rb->lcd_drawrect( realx - 1, realy - 1, CELL_SIZE + 2, CELL_SIZE + 2);
 404     }
 405 }
 406
 407 /* main function of drawing the whole board and score... */
 408 static void clix_draw(struct clix_game_state_t* state)
 409 {
 410     int i,j;
 411     char str[30];
 412
 413     /* Clear screen */
 414     rb->lcd_clear_display();
 415     rb->lcd_set_foreground( LCD_WHITE);
 416
 417     rb->lcd_putsxy( MARGIN, MARGIN, "Score:");
 418     rb->snprintf( str, sizeof(str), "%d", state->score);
 419     rb->lcd_putsxy( 43, MARGIN, str);
 420 #if LCD_WIDTH <= 100
 421     rb->lcd_putsxy( 75, MARGIN, "L:");
 422     rb->snprintf( str, sizeof(str), "%d", state->level);
 423     rb->lcd_putsxy( 90, MARGIN, str);
 424 #else
 425     rb->lcd_putsxy( 75, MARGIN, "Level:");
 426     rb->snprintf( str, sizeof(str), "%d", state->level);
 427     rb->lcd_putsxy( 113, MARGIN, str);
 428 #endif
 429     for( i = 0; i < BOARD_WIDTH; ++i)
 430     {
 431         for( j = 0; j < BOARD_HEIGHT; ++j)
 432         {
 433             clix_draw_cell( state, i, j);
 434         }
 435     }
 436
 437     rb->lcd_update();
 438     rb->lcd_set_foreground(LCD_WHITE);
 439 }
 440
 441 static void clix_move_cursor(struct clix_game_state_t* state, const bool left)
 442 {
 443     int x, y;
 444
 445     x = state->x;
 446     do
 447     {
 448         y = state->y;
 449         while(state->board[ XYPOS( x, y)] == CC_BLACK && y < BOARD_HEIGHT) y++;
 450         if (y < BOARD_HEIGHT) {
 451             state->y = y;
 452             state->x = x;
 453         }
 454         else
 455         {
 456             if (left) {
 457                 if( x >= 0)
 458                     x--;
 459                 else
 460                     y = state->y;
 461             }
 462             else
 463             {
 464                 if( x < BOARD_WIDTH - 1)
 465                     x++;
 466                 else
 467                     x = 0;
 468             }
 469         }
 470     } while ( y != state->y);
 471 }
 472
 473 /* returns the color of the given position, if out of bounds return CC_BLACK */
 474 static int clix_get_color(struct clix_game_state_t* state, const int x, const int y)
 475 {
 476     if( x >= 0 && x < BOARD_WIDTH && y >= 0 && y < BOARD_HEIGHT)
 477         return state->board[XYPOS( x, y)];
 478     else
 479         return CC_BLACK;
 480 }
 481
 482 static int clix_clear_selected(struct clix_game_state_t* state)
 483 {
 484     int i, j, x, y;
 485     bool found_move;
 486
 487     state->status = CLIX_CLEARED;
 488
 489     /* clear the selected blocks */
 490     for( i = 0; i < BOARD_WIDTH; ++i)
 491     {
 492         for( j = 0; j < BOARD_HEIGHT; ++j)
 493         {
 494             if( state->board_selected[ XYPOS( i, j)] )
 495             {
 496                 state->board_selected[ XYPOS( i, j)] = false;
 497                 state->board[ XYPOS( i, j)] = CC_BLACK;
 498             }
 499         }
 500     }
 501
 502     /* count score */
 503     state->score += state->selected_count * state->level;
 504     state->selected_count = 0;
 505
 506     /* let blocks falling down */
 507     for( i = BOARD_WIDTH - 1; i >= 0; --i)
 508     {
 509         for( j = BOARD_HEIGHT - 1; j >= 0; --j)
 510         {
 511             y = j;
 512             while( (y + 1) < BOARD_HEIGHT &&
 513                    state->board[ XYPOS( i, y + 1)] == CC_BLACK
 514                  )
 515                     y++;
 516
 517             if (y != j) {
 518                 state->board[ XYPOS( i, y)] = state->board[ XYPOS( i, j)];
 519                 state->board[ XYPOS( i, j)] = CC_BLACK;
 520             }
 521         }
 522     }
 523
 524     /* move columns to left side */
 525     for( i = 0; i < BOARD_WIDTH; ++i)
 526     {
 527         x = i;
 528         while( (x - 1) >= 0 &&
 529                state->board[ XYPOS( x - 1, BOARD_HEIGHT - 1)] == CC_BLACK
 530              )
 531             x--;
 532         if (x != i)
 533         {
 534             for( j = 0; j < BOARD_HEIGHT; ++j)
 535             {
 536                 state->board[ XYPOS( x, j)] = state->board[ XYPOS( i, j)];
 537                 state->board[ XYPOS( i, j)] = CC_BLACK;
 538             }
 539         }
 540     }
 541
 542     if(state->board[ XYPOS( 0, BOARD_HEIGHT - 1)] != CC_BLACK)
 543         state->status = CLIX_CONTINUE;
 544
 545     if (state->status != CLIX_CLEARED) {
 546         /*  check if a move is still possible, otherwise the game is over.
 547             tart from the left bottom, because there are the last fields
 548             at the end of the game.
 549         */
 550         found_move = false;
 551         for( i = 0; !found_move && i < BOARD_WIDTH; ++i)
 552         {
 553             for( j = BOARD_HEIGHT - 1; !found_move && j >= 0; --j)
 554             {
 555                 int color = state->board[ XYPOS( i, j)];
 556                 if (color != CC_BLACK) {
 557                     if (color == clix_get_color( state, i - 1, j) ||
 558                         color == clix_get_color( state, i + 1, j) ||
 559                         color == clix_get_color( state, i, j - 1) ||
 560                         color == clix_get_color( state, i, j + 1)
 561                       )
 562                     {
 563                         found_move = true;
 564                     }
 565                 }
 566             }
 567         }
 568         /* if the loops ended without a possible move, the game is over */
 569         if( !found_move)
 570             state->status = CLIX_GAMEOVER;
 571
 572         /* set cursor to the right position */
 573         if (state->status == CLIX_CONTINUE) {
 574             clix_move_cursor( state, true);
 575             clix_update_selected( state);
 576         }
 577     }
 578
 579     return state->status;
 580 }
 581
 582 static bool clix_help(void)
 583 {
 584     static char *help_text[] = {
 585         "Clix", "", "Aim", "",
 586         "Remove", "all", "blocks", "from", "the", "board", "to", "achieve",
 587         "the", "next", "level.", "You", "can", "only", "remove", "blocks,",
 588         "if", "at", "least", "two", "blocks", "with", "the", "same", "color",
 589         "have", "a", "direct", "connection.", "The", "more", "blocks", "you",
 590         "remove", "per", "turn,", "the", "more", "points", "you", "get."
 591     };
 592     static struct style_text formation[]={
 593         { 0, TEXT_CENTER|TEXT_UNDERLINE },
 594         { 2, C_RED },
 595         LAST_STYLE_ITEM
 596     };
 597
 598     rb->lcd_setfont(FONT_UI);
 599     rb->lcd_set_foreground(LCD_WHITE);
 600     if (display_text(ARRAYLEN(help_text), help_text, formation, NULL, true))
 601         return true;
 602     rb->lcd_setfont(FONT_SYSFIXED);
 603
 604     return false;
 605 }
 606
 607 static bool _ingame;
 608 static int clix_menu_cb(int action, const struct menu_item_ex *this_item)
 609 {
 610     if(action == ACTION_REQUEST_MENUITEM
 611        && !_ingame && ((intptr_t)this_item)==0)
 612         return ACTION_EXIT_MENUITEM;
 613     return action;
 614 }
 615
 616 static int clix_menu(struct clix_game_state_t* state, bool ingame)
 617 {
 618     rb->button_clear_queue();
 619     int choice = 0;
 620     bool leave_menu=false;
 621     int ret=0;
 622
 623     _ingame = ingame;
 624
 625     MENUITEM_STRINGLIST (main_menu, "Clix Menu", clix_menu_cb,
 626                              "Resume Game",
 627                              "Start New Game",
 628                              "Help",
 629                              "High Scores",
 630                              "Playback Control",
 631                              "Quit");
 632
 633 #ifdef HAVE_TOUCHSCREEN
 634     /* Entering Menu, set the touchscreen to the global setting */
 635     rb->touchscreen_set_mode(rb->global_settings->touch_mode);
 636 #endif
 637
 638     while (!leave_menu) {
 639
 640         switch (rb->do_menu(&main_menu, &choice, NULL, false)) {
 641             case 0:
 642                 leave_menu=true;
 643                 ret = 0;
 644                 break;
 645             case 1:
 646                 clix_init(state);
 647                 leave_menu=true;
 648                 ret = 0;
 649                 break;
 650             case 2:
 651                 if (clix_help()) {
 652                     leave_menu=true;
 653                     ret = 1;
 654                 }
 655                 break;
 656             case 3:
 657                 highscore_show(-1, highscores, NUM_SCORES, true);
 658                 break;
 659             case 4:
 660                 playback_control(NULL);
 661                 break;
 662             case 5:
 663             case MENU_ATTACHED_USB:
 664                 leave_menu=true;
 665                 ret = 1;
 666                 break;
 667             default:
 668                 break;
 669         }
 670     }
 671
 672 #ifdef HAVE_TOUCHSCREEN
 673     /* Leaving the menu, set back to pointer mode */
 674     rb->touchscreen_set_mode(TOUCHSCREEN_POINT);
 675 #endif
 676
 677     return ret;
 678 }
 679
 680 static int clix_click(struct clix_game_state_t* state)
 681 {
 682     int position;
 683     if (state->selected_count <= 1) {
 684         return 0;
 685     }
 686     switch( clix_clear_selected( state))
 687     {
 688         case CLIX_CLEARED:
 689             state->score += state->level * 100;
 690             clix_draw( state);
 691             if (state->level < NUM_LEVELS) {
 692                 rb->splash(HZ*2, "Great! Next Level!");
 693                 state->level++;
 694                 clix_init_new_level( state);
 695                 clix_update_selected( state);
 696             }
 697             else {
 698                 rb->splash(HZ*2, "Congratulation!!!");
 699                 rb->splash(HZ*2, "You have finished the game.");
 700                 if(clix_menu(state, 0))
 701                     return 1;
 702             }
 703         break;
 704         case CLIX_GAMEOVER:
 705             clix_draw( state);
 706             rb->splash(HZ*2, "Game Over!");
 707             rb->lcd_clear_display();
 708             position = highscore_update(state->score, state->level, "",
 709                                         highscores, NUM_SCORES);
 710             if (position != -1)
 711             {
 712                 if (position == 0)
 713                     rb->splash(HZ*2, "New High Score");
 714                 highscore_show(position, highscores, NUM_SCORES, true);
 715             }
 716             if(clix_menu(state, 0))
 717                 return 1;
 718         break;
 719         default:
 720             rb->sleep(10);  /* prevent repeating clicks */
 721         break;
 722     }
 723     return 0;
 724 }
 725
 726 static int clix_handle_game(struct clix_game_state_t* state)
 727 {
 728     int button;
 729     int blink_tick = *rb->current_tick + BLINK_TICKCOUNT;
 730
 731     int time;
 732     int start;
 733     int end;
 734     int oldx, oldy;
 735
 736     if (clix_menu(state, 0))
 737         return 1;
 738
 739     while(true)
 740     {
 741         if (TIME_AFTER(*rb->current_tick, blink_tick)) {
 742             state->blink = !state->blink;
 743             blink_tick = *rb->current_tick + BLINK_TICKCOUNT;
 744         }
 745
 746         time = 6; /* number of ticks this function will loop reading keys */
 747         start = *rb->current_tick;
 748         end = start + time;
 749         while(TIME_BEFORE(*rb->current_tick, end))
 750         {
 751             oldx = state->x;
 752             oldy = state->y;
 753
 754             button = rb->button_get_w_tmo(end - *rb->current_tick);
 755 #ifdef HAVE_TOUCHSCREEN
 756             if(button & BUTTON_TOUCHSCREEN)
 757             {
 758                 int x = rb->button_get_data() >> 16;
 759                 int y = rb->button_get_data() & 0xffff;
 760
 761                 x -= XOFS;
 762                 y -= YOFS;
 763                 if(x >= 0 && y >= 0)
 764                 {
 765                     x /= CELL_SIZE + 1;
 766                     y /= CELL_SIZE + 1;
 767
 768                     if(x < BOARD_WIDTH && y < BOARD_HEIGHT
 769                        && state->board[XYPOS(x, y)] != CC_BLACK)
 770                     {
 771                         if(state->x == x && state->y == y)
 772                             button = CLIX_BUTTON_CLICK;
 773                         else
 774                         {
 775                             state->x = x;
 776                             state->y = y;
 777                         }
 778                     }
 779                 }
 780             }
 781 #endif
 782             switch( button)
 783             {
 784 #ifndef HAVE_TOUCHSCREEN
 785 #ifdef CLIX_BUTTON_SCROLL_BACK
 786                 case CLIX_BUTTON_SCROLL_BACK:
 787                 case CLIX_BUTTON_SCROLL_BACK|BUTTON_REPEAT:
 788 #endif
 789                 case CLIX_BUTTON_UP:
 790                 case CLIX_BUTTON_UP|BUTTON_REPEAT:
 791                     if( state->y == 0 ||
 792                         state->board[ XYPOS( state->x, state->y - 1)] ==
 793                             CC_BLACK
 794                       )
 795                         state->y = BOARD_HEIGHT - 1;
 796                     else
 797                         state->y--;
 798
 799                     clix_move_cursor(state, true);
 800                 break;
 801
 802 #ifdef CLIX_BUTTON_SCROLL_FWD
 803                 case CLIX_BUTTON_SCROLL_FWD:
 804                 case CLIX_BUTTON_SCROLL_FWD|BUTTON_REPEAT:
 805 #endif
 806                 case CLIX_BUTTON_DOWN:
 807                 case CLIX_BUTTON_DOWN|BUTTON_REPEAT:
 808                     if( state->y == (BOARD_HEIGHT - 1))
 809                         state->y = 0;
 810                     else
 811                         state->y++;
 812
 813                     clix_move_cursor( state, true);
 814                 break;
 815
 816                 case CLIX_BUTTON_RIGHT:
 817                 case CLIX_BUTTON_RIGHT|BUTTON_REPEAT:
 818                     if( state->x == (BOARD_WIDTH - 1))
 819                         state->x = 0;
 820                     else
 821                         state->x++;
 822
 823                     clix_move_cursor(state, false);
 824                 break;
 825
 826                 case CLIX_BUTTON_LEFT:
 827                 case CLIX_BUTTON_LEFT|BUTTON_REPEAT:
 828                     if( state->x == 0)
 829                         state->x = BOARD_WIDTH - 1;
 830                     else
 831                         state->x--;
 832
 833                     clix_move_cursor(state, true);
 834                 break;
 835 #endif
 836                 case CLIX_BUTTON_CLICK:
 837                     if (clix_click(state) == 1)
 838                         return 1;
 839                 break;
 840
 841                 case CLIX_BUTTON_QUIT:
 842                     if (clix_menu(state, 1) != 0) {
 843                         rb->button_clear_queue();
 844                         return 1;
 845                     }
 846                 break;
 847                 default:
 848
 849                 break;
 850             }
 851
 852             if( (oldx != state->x || oldy != state->y) &&
 853                 state->board_selected[ XYPOS( oldx, oldy)] !=
 854                 state->board_selected[ XYPOS( state->x, state->y)]
 855               )
 856             {
 857                 clix_update_selected(state);
 858             }
 859             clix_draw(state);
 860             rb->sleep(time);
 861         }
 862     }
 863 }
 864
 865 /* this is the plugin entry point */
 866 enum plugin_status plugin_start(const void* parameter)
 867 {
 868     (void)parameter;
 869
 870     rb->lcd_set_backdrop(NULL);
 871     rb->lcd_set_foreground(LCD_WHITE);
 872     rb->lcd_set_background(LCD_BLACK);
 873     rb->lcd_setfont(FONT_SYSFIXED);
 874 #ifdef HAVE_TOUCHSCREEN
 875     rb->touchscreen_set_mode(TOUCHSCREEN_POINT);
 876 #endif
 877
 878     highscore_load(SCORE_FILE, highscores, NUM_SCORES);
 879
 880     struct clix_game_state_t state;
 881     clix_handle_game( &state);
 882
 883     highscore_save(SCORE_FILE, highscores, NUM_SCORES);
 884
 885     return PLUGIN_OK;
 886 }