apps/plugins/invadrox.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id: $
   9  *
  10  * Copyright (C) 2006 Albert Veli
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 /* Improvised creds goes to:
  21  *
  22  * - Anders Clausen for ingeniously inventing the name Invadrox.
  23  * - Linus Nielsen-Feltzing for patiently answering n00b questions.
  24  */
  25
  26 #include "plugin.h"
  27 #include "highscore.h"
  28 #include "helper.h"
  29
  30 PLUGIN_HEADER
  31
  32 /* Original graphics is only 1bpp so it should be portable
  33  * to most targets. But for now, only support the simple ones.
  34  */
  35 #ifndef HAVE_LCD_BITMAP
  36     #error INVADROX: Unsupported LCD
  37 #endif
  38
  39 #if (LCD_DEPTH < 2)
  40     #error INVADROX: Unsupported LCD
  41 #endif
  42
  43 /* #define DEBUG */
  44 #ifdef DEBUG
  45 #include <stdio.h>
  46 #define DBG(format, arg...) { printf("%s: " format, __FUNCTION__, ## arg); }
  47 #else
  48 #define DBG(format, arg...) {}
  49 #endif
  50
  51 #if CONFIG_KEYPAD == IRIVER_H100_PAD
  52
  53 #define QUIT BUTTON_OFF
  54 #define LEFT BUTTON_LEFT
  55 #define RIGHT BUTTON_RIGHT
  56 #define FIRE BUTTON_ON
  57
  58 #elif CONFIG_KEYPAD == IRIVER_H300_PAD
  59
  60 #define QUIT BUTTON_OFF
  61 #define LEFT BUTTON_LEFT
  62 #define RIGHT BUTTON_RIGHT
  63 #define FIRE BUTTON_SELECT
  64
  65 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
  66
  67 #define QUIT BUTTON_POWER
  68 #define LEFT BUTTON_LEFT
  69 #define RIGHT BUTTON_RIGHT
  70 #define FIRE BUTTON_PLAY
  71
  72 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  73       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  74       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  75
  76 #define QUIT BUTTON_MENU
  77 #define LEFT BUTTON_LEFT
  78 #define RIGHT BUTTON_RIGHT
  79 #define FIRE BUTTON_SELECT
  80
  81 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
  82
  83 #define QUIT BUTTON_POWER
  84 #define LEFT BUTTON_LEFT
  85 #define RIGHT BUTTON_RIGHT
  86 #define FIRE BUTTON_SELECT
  87
  88 #elif CONFIG_KEYPAD == GIGABEAT_PAD
  89
  90 #define QUIT BUTTON_POWER
  91 #define LEFT BUTTON_LEFT
  92 #define RIGHT BUTTON_RIGHT
  93 #define FIRE BUTTON_SELECT
  94
  95 #elif CONFIG_KEYPAD == SANSA_E200_PAD
  96
  97 #define QUIT BUTTON_POWER
  98 #define LEFT BUTTON_LEFT
  99 #define RIGHT BUTTON_RIGHT
 100 #define FIRE BUTTON_SELECT
 101
 102 #elif CONFIG_KEYPAD == ELIO_TPJ1022_PAD
 103
 104 /* TODO: Figure out which buttons to use for Tatung Elio TPJ-1022 */
 105 #define QUIT BUTTON_AB
 106 #define LEFT BUTTON_LEFT
 107 #define RIGHT BUTTON_RIGHT
 108 #define FIRE BUTTON_MENU
 109
 110 #else
 111     #error INVADROX: Unsupported keypad
 112 #endif
 113
 114
 115 #ifndef UNUSED
 116 #define UNUSED __attribute__ ((unused))
 117 #endif
 118
 119 #ifndef ABS
 120 #define ABS(x) (((x) < 0) ? (-(x)) : (x))
 121 #endif
 122
 123
 124 /* Defines common to all models */
 125 #define UFO_Y (SCORENUM_Y + FONT_HEIGHT + ALIEN_HEIGHT)
 126 #define PLAYFIELD_Y (LCD_HEIGHT - SHIP_HEIGHT - 2)
 127 #define PLAYFIELD_WIDTH (LCD_WIDTH - 2 * PLAYFIELD_X)
 128 #define LEVEL_X (LCD_WIDTH - PLAYFIELD_X - LIVES_X - LEVEL_WIDTH - 2 * NUMBERS_WIDTH - 3 * NUM_SPACING)
 129 #define SHIP_MIN_X (PLAYFIELD_X + PLAYFIELD_WIDTH / 5 - SHIELD_WIDTH / 2 - SHIP_WIDTH)
 130 #define SHIP_MAX_X (PLAYFIELD_X + 4 * PLAYFIELD_WIDTH / 5 + SHIELD_WIDTH / 2)
 131 /* SCORE_Y = 0 for most targets. Gigabeat redefines it later. */
 132 #define SCORE_Y 0
 133 #define MAX_LIVES 8
 134
 135
 136 /* iPod Video defines */
 137 #if (LCD_WIDTH == 320) && (LCD_HEIGHT == 240)
 138
 139 /* Original arcade game size 224x240, 1bpp with
 140  * red overlay at top and green overlay at bottom.
 141  *
 142  * iPod Video: 320x240x16
 143  * ======================
 144  * X: 48p padding at left/right gives 224p playfield in middle.
 145  *    10p "border" gives 204p actual playfield. UFO use full 224p.
 146  * Y: Use full 240p.
 147  *
 148  * MAX_X = (204 - 12) / 2 - 1 = 95
 149  *
 150  * Y: Score text 7       0
 151  *    Space      10      7
 152  *    Score      7       17
 153  *    Space      8       24
 154  * 3  Ufo        7       32
 155  * 2  Space      Aliens start at 32 + 3 * 8 = 56
 156  * 0  aliens     9*8     56  -
 157  *    space     ~7*8     128  | 18.75 aliens space between
 158  *    shield     2*8     182  | first alien and ship.
 159  *    space      8       198  | MAX_Y = 18
 160  *    ship       8       206 -
 161  *    space      2*8     214
 162  *    hline      1       230 - PLAYFIELD_Y
 163  *    bottom border 10   240
 164  *    Lives and Level goes inside bottom border
 165  */
 166
 167 #define ARCADISH_GRAPHICS
 168 #define PLAYFIELD_X 48
 169 #define SHIP_Y (PLAYFIELD_Y - 3 * SHIP_HEIGHT)
 170 #define ALIEN_START_Y (UFO_Y + 3 * ALIEN_HEIGHT)
 171 #define SCORENUM_X (PLAYFIELD_X + NUMBERS_WIDTH)
 172 #define SCORENUM_Y SCORE_Y + (2 * (FONT_HEIGHT + 1) + 1)
 173 #define HISCORE_X (LCD_WIDTH - PLAYFIELD_X - HISCORE_WIDTH)
 174 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 1 - 6 * NUMBERS_WIDTH - 5 * NUM_SPACING)
 175 #define SHIELD_Y (PLAYFIELD_Y - 6 * SHIP_HEIGHT)
 176 #define LIVES_X 10
 177 #define MAX_X 95
 178 #define MAX_Y 18
 179
 180
 181 #elif (LCD_WIDTH == 176) && (LCD_HEIGHT == 220)
 182
 183 /* Sandisk Sansa e200: 176x220x16
 184  * ==============================
 185  * X: No padding. 8p border -> 160p playfield.
 186  *
 187  * 8p Aliens with 3p spacing -> 88 + 30 = 118p aliens block.
 188  * (160 - 118) / 2 = 21 rounds for whole block (more than original)
 189  * MAX_X = (160 - 8) / 2 - 1 = 75 rounds for single alien (less than original)
 190  *
 191  *    LOGO       70       0
 192  *    Score text 5        70
 193  *    Space      5        75
 194  * Y  Score      5        80
 195  *    Space      10       85
 196  * 2  Ufo        5        95
 197  * 2  Space      10      100
 198  * 0  aliens     9*5     110 -
 199  *    space     ~7*5     155  | 18.6 aliens space between
 200  *    shield     2*5     188  | first alien and ship.
 201  *    space      5       198  | MAX_Y = 18
 202  *    ship       5       203 -
 203  *    space      5       208
 204  *    hline      1       213 PLAYFIELD_Y
 205  *    bottom border 6
 206  *    LCD_HEIGHT         220
 207  *    Lives and Level goes inside bottom border
 208  */
 209
 210 #define TINY_GRAPHICS
 211 #define PLAYFIELD_X 0
 212 #define SHIP_Y (PLAYFIELD_Y - 2 * SHIP_HEIGHT)
 213 #define SHIELD_Y (SHIP_Y - SHIP_HEIGHT - SHIELD_HEIGHT)
 214 #define ALIEN_START_Y (UFO_Y + 3 * SHIP_HEIGHT)
 215 /* Redefine SCORE_Y */
 216 #undef SCORE_Y
 217 #define SCORE_Y 70
 218 #define SCORENUM_X (PLAYFIELD_X + NUMBERS_WIDTH)
 219 #define SCORENUM_Y (SCORE_Y + 2 * FONT_HEIGHT)
 220 #define HISCORE_X (LCD_WIDTH - PLAYFIELD_X - HISCORE_WIDTH)
 221 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 1 - 6 * NUMBERS_WIDTH - 5 * NUM_SPACING)
 222 #define LIVES_X 8
 223 #define MAX_X 75
 224 #define MAX_Y 18
 225
 226
 227 #elif (LCD_WIDTH == 176) && (LCD_HEIGHT == 132)
 228
 229 /* iPod Nano: 176x132x16
 230  * ======================
 231  * X: No padding. 8p border -> 160p playfield.
 232  *
 233  *    LIVES_X 8
 234  *    ALIEN_WIDTH 8
 235  *    ALIEN_HEIGHT 5
 236  *    ALIEN_SPACING 3
 237  *    SHIP_WIDTH 10
 238  *    SHIP_HEIGHT 5
 239  *    FONT_HEIGHT 5
 240  *    UFO_WIDTH 10
 241  *    UFO_HEIGHT 5
 242  *    SHIELD_WIDTH 15
 243  *    SHIELD_HEIGHT 10
 244  *    MAX_X 75
 245  *    MAX_Y = 18
 246  *    ALIEN_START_Y (UFO_Y + 12)
 247  *
 248  * 8p Aliens with 3p spacing -> 88 + 30 = 118p aliens block.
 249  * (160 - 118) / 2 = 21 rounds for whole block (more than original)
 250  * MAX_X = (160 - 8) / 2 - 1 = 75 rounds for single alien (less than original)
 251  *
 252  * Y: Scoreline  5         0 (combine scoretext and numbers on same line)
 253  *    Space      5         5
 254  * 1  Ufo        5        10
 255  * 3  Space      7        15
 256  * 2  aliens     9*5      22 -
 257  *    space     ~7*5      67  | Just above 18 aliens space between
 258  *    shield     2*5     100  | first alien and ship.
 259  *    space      5       110  | MAX_Y = 18
 260  *    ship       5       115 -
 261  *    space      5       120
 262  *    hline      1       125 PLAYFIELD_Y
 263  *    bottom border 6    126
 264  *    LCD_HEIGHT         131
 265  *    Lives and Level goes inside bottom border
 266  */
 267
 268 #define TINY_GRAPHICS
 269 #define PLAYFIELD_X 0
 270 #define SHIP_Y (PLAYFIELD_Y - 2 * SHIP_HEIGHT)
 271 #define ALIEN_START_Y (UFO_Y + 12)
 272 #define SCORENUM_X (PLAYFIELD_X + SCORE_WIDTH + NUMBERS_WIDTH + NUM_SPACING)
 273 #define SCORENUM_Y SCORE_Y
 274 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 4 * NUMBERS_WIDTH - 3 * NUM_SPACING)
 275 #define HISCORE_X (HISCORENUM_X - NUMBERS_WIDTH - NUM_SPACING - HISCORE_WIDTH)
 276 #define SHIELD_Y (SHIP_Y - SHIP_HEIGHT - SHIELD_HEIGHT)
 277 #define LIVES_X 8
 278 #define MAX_X 75
 279 #define MAX_Y 18
 280
 281 #elif (LCD_WIDTH == 160) && (LCD_HEIGHT == 128)
 282
 283 /* iAudio X5, iRiver H10 20Gb, iPod 3g/4g: 160x128x16
 284  * ======================================
 285  * X: No padding. No border -> 160p playfield.
 286  *
 287  *    LIVES_X 0
 288  *    ALIEN_WIDTH 8
 289  *    ALIEN_HEIGHT 5
 290  *    ALIEN_SPACING 3
 291  *    SHIP_WIDTH 10
 292  *    SHIP_HEIGHT 5
 293  *    FONT_HEIGHT 5
 294  *    UFO_WIDTH 10
 295  *    UFO_HEIGHT 5
 296  *    SHIELD_WIDTH 15
 297  *    SHIELD_HEIGHT 10
 298  *    MAX_X 75
 299  *    MAX_Y = 18
 300  *    ALIEN_START_Y (UFO_Y + 10)
 301  *
 302  * 8p Aliens with 3p spacing -> 88 + 30 = 118p aliens block.
 303  * (160 - 118) / 2 = 21 rounds for whole block (more than original)
 304  * MAX_X = (160 - 8) / 2 - 1 = 75 rounds for single alien (less than original)
 305  *
 306  * Y: Scoreline  5         0 (combine scoretext and numbers on same line)
 307  *    Space      5         5
 308  * 1  Ufo        5        10
 309  * 2  Space      5        15
 310  * 8  aliens     9*5      20 -
 311  *    space     ~6*5      65  | Just above 18 aliens space between
 312  *    shield     2*5      96  | first alien and ship.
 313  *    space      5       106  | MAX_Y = 18
 314  *    ship       5       111 -
 315  *    space      5       116
 316  *    hline      1       121 PLAYFIELD_Y
 317  *    bottom border 6    122
 318  *    LCD_HEIGHT         128
 319  *    Lives and Level goes inside bottom border
 320  */
 321
 322 #define TINY_GRAPHICS
 323 #define PLAYFIELD_X 0
 324 #define SHIP_Y (PLAYFIELD_Y - 2 * SHIP_HEIGHT)
 325 #define ALIEN_START_Y (UFO_Y + 10)
 326 #define SCORENUM_X (PLAYFIELD_X + SCORE_WIDTH + NUMBERS_WIDTH + NUM_SPACING)
 327 #define SCORENUM_Y SCORE_Y
 328 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 4 * NUMBERS_WIDTH - 3 * NUM_SPACING)
 329 #define HISCORE_X (HISCORENUM_X - NUMBERS_WIDTH - NUM_SPACING - HISCORE_WIDTH)
 330 #define SHIELD_Y (SHIP_Y - SHIP_HEIGHT - SHIELD_HEIGHT)
 331 #define LIVES_X 0
 332 #define MAX_X 75
 333 #define MAX_Y 18
 334
 335
 336 #elif (LCD_WIDTH == 240) && (LCD_HEIGHT == 320)
 337
 338 /* Gigabeat: 240x320x16
 339  * ======================
 340  * X: 8p padding at left/right gives 224p playfield in middle.
 341  *    10p "border" gives 204p actual playfield. UFO use full 224p.
 342  * Y: Use bottom 240p for playfield and top 80 pixels for logo.
 343  *
 344  * MAX_X = (204 - 12) / 2 - 1 = 95
 345  *
 346  * Y: Score text 7       0   + 80
 347  *    Space      10      7   + 80
 348  *    Score      7       17  + 80
 349  *    Space      8       24  + 80
 350  * 3  Ufo        7       32  + 80
 351  * 2  Space      Aliens start at 32 + 3 * 8 = 56
 352  * 0  aliens     9*8     56  -
 353  *    space     ~7*8     128  | 18.75 aliens space between
 354  *    shield     2*8     182  | first alien and ship.
 355  *    space      8       198  | MAX_Y = 18
 356  *    ship       8       206 -
 357  *    space      2*8     214
 358  *    hline      1       230 310  - PLAYFIELD_Y
 359  *    bottom border 10   240 320
 360  *    Lives and Level goes inside bottom border
 361  */
 362
 363 #define ARCADISH_GRAPHICS
 364 #define PLAYFIELD_X 8
 365 #define SHIP_Y (PLAYFIELD_Y - 3 * SHIP_HEIGHT)
 366 #define ALIEN_START_Y (UFO_Y + 3 * ALIEN_HEIGHT)
 367 /* Redefine SCORE_Y */
 368 #undef SCORE_Y
 369 #define SCORE_Y 80
 370 #define SCORENUM_X (PLAYFIELD_X + NUMBERS_WIDTH)
 371 #define SCORENUM_Y SCORE_Y + (2 * (FONT_HEIGHT + 1) + 1)
 372 #define HISCORE_X (LCD_WIDTH - PLAYFIELD_X - HISCORE_WIDTH)
 373 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 1 - 6 * NUMBERS_WIDTH - 5 * NUM_SPACING)
 374 #define SHIELD_Y (PLAYFIELD_Y - 6 * SHIP_HEIGHT)
 375 #define LIVES_X 10
 376 #define MAX_X 95
 377 #define MAX_Y 18
 378
 379 #elif (LCD_WIDTH == 220) && (LCD_HEIGHT == 176)
 380
 381 /* TPJ1022, H300, iPod Color: 220x176x16
 382  * ============================
 383  * X: 0p padding at left/right gives 220p playfield in middle.
 384  *    8p "border" gives 204p actual playfield. UFO use full 220p.
 385  * Y: Use full 176p for playfield.
 386  *
 387  * MAX_X = (204 - 12) / 2 - 1 = 95
 388  *
 389  * Y: Score text 7       0
 390  *    Space      8       7
 391  * 1  Ufo        7       15
 392  * 7  Space      Aliens start at 15 + 3 * 8 = 56
 393  * 6  aliens     9*8     25  -
 394  *    space     ~7*8     103  | 15.6 aliens space between
 395  *    shield     2*8     126  | first alien and ship.
 396  *    space      8       142  | MAX_Y = 15
 397  *    ship       8       150 -
 398  *    space      8       158
 399  *    hline      1       166 - PLAYFIELD_Y
 400  *    bottom border 10   176
 401  *    Lives and Level goes inside bottom border
 402  */
 403
 404 #define ARCADISH_GRAPHICS
 405 #define PLAYFIELD_X 0
 406 #define SHIP_Y (PLAYFIELD_Y - 2 * SHIP_HEIGHT)
 407 #define ALIEN_START_Y (UFO_Y + 10)
 408 #define SCORENUM_Y SCORE_Y
 409 #define SCORENUM_X (PLAYFIELD_X + SCORE_WIDTH + NUMBERS_WIDTH + NUM_SPACING)
 410 #define HISCORENUM_X (LCD_WIDTH - PLAYFIELD_X - 4 * NUMBERS_WIDTH - 3 * NUM_SPACING)
 411 #define HISCORE_X (HISCORENUM_X - NUMBERS_WIDTH - NUM_SPACING - HISCORE_WIDTH)
 412 #define SHIELD_Y (PLAYFIELD_Y - 5 * SHIP_HEIGHT)
 413 #define LIVES_X 8
 414 #define MAX_X 95
 415 #define MAX_Y 15
 416
 417 #else
 418     #error INVADROX: Unsupported LCD type
 419 #endif
 420
 421
 422 /* Defines common to each "graphic type" */
 423 #ifdef ARCADISH_GRAPHICS
 424
 425 #define STRIDE 71
 426 #define SHIP_SRC_X 24
 427 #define SHIP_WIDTH 16
 428 #define SHIP_HEIGHT 8
 429 #define SHOT_HEIGHT 5
 430 #define ALIEN_WIDTH 12
 431 #define ALIEN_EXPLODE_SRC_X 52
 432 #define ALIEN_EXPLODE_SRC_Y 39
 433 #define ALIEN_EXPLODE_WIDTH 13
 434 #define ALIEN_EXPLODE_HEIGHT 7
 435 #define ALIEN_HEIGHT 8
 436 #define ALIEN_SPACING 4
 437 #define ALIEN_SPEED 2
 438 #define UFO_SRC_X 40
 439 #define UFO_WIDTH 16
 440 #define UFO_HEIGHT 7
 441 #define UFO_EXPLODE_WIDTH 21
 442 #define UFO_EXPLODE_HEIGHT 8
 443 #define UFO_SPEED 1
 444 #define FONT_HEIGHT 7
 445 #define LEVEL_SRC_Y 24
 446 #define LEVEL_WIDTH 37
 447 #define SCORE_SRC_X 24
 448 #define SCORE_SRC_Y 31
 449 #define SCORE_WIDTH 37
 450 #define HISCORE_WIDTH 61
 451 #define NUM_SPACING 3
 452 #define NUMBERS_SRC_Y 38
 453 #define NUMBERS_WIDTH 5
 454 #define SHIELD_SRC_X 40
 455 #define SHIELD_SRC_Y 15
 456 #define SHIELD_WIDTH 22
 457 #define SHIELD_HEIGHT 16
 458 #define FIRE_WIDTH 8
 459 #define FIRE_HEIGHT 8
 460 #define FIRE_SPEED 8
 461 #define BOMB_SRC_X 62
 462 #define BOMB_WIDTH 3
 463 #define BOMB_HEIGHT 7
 464 #define BOMB_SPEED 3
 465 #define ALIENS 11
 466 unsigned char fire_sprite[FIRE_HEIGHT] = {
 467     (1 << 7) | (0 << 6) | (0 << 5) | (0 << 4) | (1 << 3) | (0 << 2) | (0 << 1) | 1,
 468     (0 << 7) | (0 << 6) | (1 << 5) | (0 << 4) | (0 << 3) | (0 << 2) | (1 << 1) | 0,
 469     (0 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 0,
 470     (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 1,
 471     (0 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 1,
 472     (0 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 0,
 473     (0 << 7) | (0 << 6) | (1 << 5) | (0 << 4) | (0 << 3) | (1 << 2) | (0 << 1) | 0,
 474     (1 << 7) | (0 << 6) | (0 << 5) | (1 << 4) | (0 << 3) | (0 << 2) | (0 << 1) | 1
 475 };
 476
 477 #elif defined TINY_GRAPHICS
 478
 479 #define STRIDE 53
 480 #define SHIP_SRC_X 16
 481 #define SHIP_WIDTH 10
 482 #define SHIP_HEIGHT 5
 483 #define SHOT_HEIGHT 4
 484 #define ALIEN_WIDTH 8
 485 #define ALIEN_HEIGHT 5
 486 #define ALIEN_EXPLODE_SRC_X 40
 487 #define ALIEN_EXPLODE_SRC_Y 26
 488 #define ALIEN_EXPLODE_WIDTH 10
 489 #define ALIEN_EXPLODE_HEIGHT 5
 490 #define ALIEN_SPACING 3
 491 #define ALIEN_SPEED 2
 492 #define UFO_SRC_X 26
 493 #define UFO_WIDTH 11
 494 #define UFO_HEIGHT 5
 495 #define UFO_EXPLODE_WIDTH 14
 496 #define UFO_EXPLODE_HEIGHT 5
 497 #define UFO_SPEED 1
 498 #define FONT_HEIGHT 5
 499 #define LEVEL_SRC_Y 15
 500 #define LEVEL_WIDTH 29
 501 #define NUMBERS_WIDTH 4
 502 #define NUM_SPACING 2
 503 #define SCORE_SRC_X 17
 504 #define SCORE_SRC_Y 20
 505 #define SCORE_WIDTH 28
 506 #define HISCORE_WIDTH 45
 507 #define NUMBERS_SRC_Y 25
 508 #define SHIELD_SRC_X 29
 509 #define SHIELD_SRC_Y 10
 510 #define SHIELD_WIDTH 15
 511 #define SHIELD_HEIGHT 10
 512 #define FIRE_WIDTH 6
 513 #define FIRE_HEIGHT 6
 514 #define FIRE_SPEED 6
 515 #define BOMB_SRC_X 44
 516 #define BOMB_WIDTH 3
 517 #define BOMB_HEIGHT 5
 518 #define BOMB_SPEED 2
 519 #define ALIENS 11
 520 unsigned char fire_sprite[FIRE_HEIGHT] = {
 521     (1 << 5) | (0 << 4) | (0 << 3) | (1 << 2) | (0 << 1) | 1,
 522     (0 << 5) | (1 << 4) | (0 << 3) | (0 << 2) | (0 << 1) | 0,
 523     (0 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 0,
 524     (0 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1) | 1,
 525     (0 << 5) | (1 << 4) | (0 << 3) | (0 << 2) | (1 << 1) | 0,
 526     (1 << 5) | (0 << 4) | (1 << 3) | (0 << 2) | (0 << 1) | 1
 527 };
 528
 529 #else
 530     #error Graphic type not defined
 531 #endif
 532
 533
 534 /* Colors */
 535 #if (LCD_DEPTH >= 8)
 536 #define SLIME_GREEN LCD_RGBPACK(31, 254, 31)
 537 #define UFO_RED LCD_RGBPACK(254, 31, 31)
 538 #elif (LCD_DEPTH == 2)
 539 #define SLIME_GREEN LCD_LIGHTGRAY
 540 #define UFO_RED LCD_LIGHTGRAY
 541 #else
 542 #error LCD type not implemented yet
 543 #endif
 544
 545 /* Alien states */
 546 #define DEAD 0
 547 #define ALIVE 1
 548 #define BOMBER 2
 549
 550 /* Fire/bomb/ufo states */
 551 #define S_IDLE 0
 552 #define S_ACTIVE 1
 553 #define S_SHOWSCORE 2
 554 #define S_EXPLODE -9
 555
 556 /* Fire/bomb targets */
 557 #define TARGET_TOP 0
 558 #define TARGET_SHIELD 1
 559 #define TARGET_SHIP 2
 560 #define TARGET_BOTTOM 3
 561 #define TARGET_UFO 4
 562
 563 #define HISCOREFILE PLUGIN_GAMES_DIR "/invadrox.high"
 564
 565
 566 /* The time (in ms) for one iteration through the game loop - decrease this
 567  * to speed up the game - note that current_tick is (currently) only accurate
 568  * to 10ms.
 569  */
 570 #define CYCLETIME 40
 571
 572
 573 static struct plugin_api* rb;
 574
 575 /* Physical x is at PLAYFIELD_X + LIVES_X + x * ALIEN_SPEED
 576  * Physical y is at y * ALIEN_HEIGHT
 577  */
 578 struct alien {
 579     unsigned char x;     /* x-coordinate (0 - 95) */
 580     unsigned char y;     /* y-coordinate (0 - 18) */
 581     unsigned char type;  /* 0 (Kang), 1 (Kodos), 2 (Serak) */
 582     unsigned char state; /* Dead, alive or bomber */
 583 };
 584
 585 /* Aliens box 5 rows * ALIENS aliens in each row */
 586 struct alien aliens[5 * ALIENS];
 587
 588 #define MAX_BOMBS 4
 589 struct bomb {
 590     int x, y;
 591     unsigned char type;
 592     unsigned char frame; /* Current animation frame */
 593     unsigned char frames; /* Number of frames in animation */
 594     unsigned char target; /* Remember target during explosion frames */
 595     int state; /* 0 (IDLE) = inactive, 1 (FIRE) or negative, exploding */
 596 };
 597 struct bomb bombs[MAX_BOMBS];
 598 /* Increase max_bombs at higher levels */
 599 int max_bombs;
 600
 601 /* Raw framebuffer value of shield/ship green color */
 602 fb_data screen_green, screen_white;
 603
 604 /* For optimization, precalculate startoffset of each scanline */
 605 unsigned int ytab[LCD_HEIGHT];
 606
 607 /* external bitmaps */
 608 extern const fb_data invadrox[];
 609 #if (LCD_WIDTH == 320) && (LCD_HEIGHT == 240)
 610 /* iPod Video only */
 611 extern const fb_data invadrox_left[];
 612 extern const fb_data invadrox_right[];
 613 #endif
 614 #if ((LCD_WIDTH == 240) && (LCD_HEIGHT == 320)) || ((LCD_WIDTH == 176) && (LCD_HEIGHT == 220))
 615 /* Gigabeat F, Sansa e200 */
 616 extern const fb_data invadrox_logo[];
 617 #endif
 618
 619
 620 int lives = 2;
 621 int score = 0;
 622 int scores[3] = { 30, 20, 10 };
 623 int level = 0;
 624 struct highscore hiscore;
 625 bool game_over = false;
 626 int ship_x, old_ship_x, ship_dir, ship_acc, max_ship_speed;
 627 int ship_frame, ship_frame_counter;
 628 bool ship_hit;
 629 int fire, fire_target, fire_x, fire_y;
 630 int curr_alien, aliens_paralyzed, gamespeed;
 631 int ufo_state, ufo_x;
 632 bool level_finished;
 633 bool aliens_down, aliens_right, hit_left_border, hit_right_border;
 634
 635
 636 /* No standard get_pixel function yet, use this hack instead */
 637 #if (LCD_DEPTH >= 8)
 638
 639 inline fb_data get_pixel(int x, int y)
 640 {
 641     return rb->lcd_framebuffer[ytab[y] + x];
 642 }
 643
 644 #elif (LCD_DEPTH == 2)
 645
 646 #if (LCD_PIXELFORMAT == HORIZONTAL_PACKING)
 647 static const unsigned char shifts[4] = {
 648     6, 4, 2, 0
 649 };
 650 /* Horizontal packing */
 651 inline fb_data get_pixel(int x, int y)
 652 {
 653     return (rb->lcd_framebuffer[ytab[y] + (x >> 2)] >> shifts[x & 3]) & 3;
 654 }
 655 #else
 656 /* Vertical packing */
 657 static const unsigned char shifts[4] = {
 658     0, 2, 4, 6
 659 };
 660 inline fb_data get_pixel(int x, int y)
 661 {
 662     return (rb->lcd_framebuffer[ytab[y] + x] >> shifts[y & 3]) & 3;
 663 }
 664 #endif /* Horizontal/Vertical packing */
 665
 666 #else
 667     #error get_pixel: pixelformat not implemented yet
 668 #endif
 669
 670
 671 /* Draw "digits" least significant digits of num at (x,y) */
 672 void draw_number(int x, int y, int num, int digits)
 673 {
 674     int i;
 675     int d;
 676
 677     for (i = digits - 1; i >= 0; i--) {
 678         d = num % 10;
 679         num = num / 10;
 680         rb->lcd_bitmap_part(invadrox, d * NUMBERS_WIDTH, NUMBERS_SRC_Y,
 681                             STRIDE, x + i * (NUMBERS_WIDTH + NUM_SPACING), y,
 682                             NUMBERS_WIDTH, FONT_HEIGHT);
 683     }
 684     /* Update lcd */
 685     rb->lcd_update_rect(x, y, 4 * NUMBERS_WIDTH + 3 * NUM_SPACING, FONT_HEIGHT);
 686 }
 687
 688
 689 inline void draw_score(void)
 690 {
 691     draw_number(SCORENUM_X, SCORENUM_Y, score, 4);
 692     if (score > hiscore.score) {
 693         /* Draw new hiscore (same as score) */
 694         draw_number(HISCORENUM_X, SCORENUM_Y, score, 4);
 695     }
 696 }
 697
 698
 699 void draw_level(void)
 700 {
 701     rb->lcd_bitmap_part(invadrox, 0, LEVEL_SRC_Y,
 702                         STRIDE, LEVEL_X, PLAYFIELD_Y + 2,
 703                         LEVEL_WIDTH, FONT_HEIGHT);
 704     draw_number(LEVEL_X + LEVEL_WIDTH + 2 * NUM_SPACING, PLAYFIELD_Y + 2, level, 2);
 705 }
 706
 707
 708 void draw_lives(void)
 709 {
 710     int i;
 711     /* Lives num */
 712     rb->lcd_bitmap_part(invadrox, lives * NUMBERS_WIDTH, NUMBERS_SRC_Y,
 713                         STRIDE, PLAYFIELD_X + LIVES_X, PLAYFIELD_Y + 2,
 714                         NUMBERS_WIDTH, FONT_HEIGHT);
 715
 716     /* Ships */
 717     for (i = 0; i < (lives - 1); i++) {
 718         rb->lcd_bitmap_part(invadrox, SHIP_SRC_X, 0, STRIDE,
 719                             PLAYFIELD_X + LIVES_X + SHIP_WIDTH + i * (SHIP_WIDTH + NUM_SPACING),
 720                             PLAYFIELD_Y + 1, SHIP_WIDTH, SHIP_HEIGHT);
 721     }
 722
 723     /* Erase ship to the righ (if less than MAX_LIVES) */
 724     if (lives < MAX_LIVES) {
 725         rb->lcd_fillrect(PLAYFIELD_X + LIVES_X + SHIP_WIDTH + i * (SHIP_WIDTH + NUM_SPACING),
 726                          PLAYFIELD_Y + 1, SHIP_WIDTH, SHIP_HEIGHT);
 727     }
 728     /* Update lives (and level) part of screen */
 729     rb->lcd_update_rect(PLAYFIELD_X + LIVES_X, PLAYFIELD_Y + 1,
 730                         PLAYFIELD_WIDTH - 2 * LIVES_X, MAX(FONT_HEIGHT + 1, SHIP_HEIGHT + 1));
 731 }
 732
 733
 734 inline void draw_aliens(void)
 735 {
 736     int i;
 737
 738     for (i = 0; i < 5 * ALIENS; i++) {
 739         rb->lcd_bitmap_part(invadrox, aliens[i].x & 1 ? ALIEN_WIDTH : 0, aliens[i].type * ALIEN_HEIGHT,
 740                             STRIDE, PLAYFIELD_X + LIVES_X + aliens[i].x * ALIEN_SPEED,
 741                             ALIEN_START_Y + aliens[i].y * ALIEN_HEIGHT,
 742                             ALIEN_WIDTH, ALIEN_HEIGHT);
 743     }
 744 }
 745
 746
 747 /* Return false if there is no next alive alien (round is over) */
 748 inline bool next_alien(void)
 749 {
 750     bool ret = true;
 751
 752     do {
 753         curr_alien++;
 754         if (curr_alien % ALIENS == 0) {
 755             /* End of this row. Move up one row. */
 756             curr_alien -= 2 * ALIENS;
 757             if (curr_alien < 0) {
 758                 /* No more aliens in this round. */
 759                 curr_alien = 4 * ALIENS;
 760                 ret = false;
 761             }
 762         }
 763     } while (aliens[curr_alien].state == DEAD && ret);
 764
 765     if (!ret) {
 766         /* No more alive aliens. Round finished. */
 767         if (hit_right_border) {
 768             if (hit_left_border) {
 769                 DBG("ERROR: both left and right borders are set (%d)\n", curr_alien);
 770             }
 771             /* Move down-left next round */
 772             aliens_right = false;
 773             aliens_down = true;
 774             hit_right_border = false;
 775         } else if (hit_left_border) {
 776             /* Move down-right next round */
 777             aliens_right = true;
 778             aliens_down = true;
 779             hit_left_border = false;
 780         } else {
 781             /* Not left nor right. Set down to false. */
 782             aliens_down = false;
 783         }
 784     }
 785
 786     return ret;
 787 }
 788
 789
 790 /* All aliens have been moved.
 791  * Set curr_alien to first alive.
 792  * Return false if no-one is left alive.
 793  */
 794 bool first_alien(void)
 795 {
 796     int i, y;
 797
 798     for (y = 4; y >= 0; y--) {
 799         for (i = y * ALIENS; i < (y + 1) * ALIENS; i++) {
 800             if (aliens[i].state != DEAD) {
 801                 curr_alien = i;
 802                 return true;
 803             }
 804         }
 805     }
 806
 807     /* All aliens dead. */
 808     level_finished = true;
 809
 810     return false;
 811 }
 812
 813
 814 bool move_aliens(void)
 815 {
 816     int x, y, old_x, old_y;
 817
 818     /* Move current alien (curr_alien is pointing to a living alien) */
 819
 820     old_x = aliens[curr_alien].x;
 821     old_y = aliens[curr_alien].y;
 822
 823     if (aliens_down) {
 824         aliens[curr_alien].y++;
 825         if (aliens[curr_alien].y == MAX_Y) {
 826             /* Alien is at bottom. Game Over. */
 827             DBG("Alien %d is at bottom. Game Over.\n", curr_alien);
 828             game_over = true;
 829             return false;
 830         }
 831     }
 832
 833     if (aliens_right) {
 834         /* Moving right */
 835         if (aliens[curr_alien].x < MAX_X) {
 836             aliens[curr_alien].x++;
 837         }
 838
 839         /* Now, after move, check if we hit the right border. */
 840         if (aliens[curr_alien].x == MAX_X) {
 841             hit_right_border = true;
 842         }
 843
 844     } else {
 845         /* Moving left */
 846         if (aliens[curr_alien].x > 0) {
 847             aliens[curr_alien].x--;
 848         }
 849
 850         /* Now, after move, check if we hit the left border. */
 851         if (aliens[curr_alien].x == 0) {
 852             hit_left_border = true;
 853         }
 854     }
 855
 856     /* Erase old position */
 857     x = PLAYFIELD_X + LIVES_X + old_x * ALIEN_SPEED;
 858     y = ALIEN_START_Y + old_y * ALIEN_HEIGHT;
 859     if (aliens[curr_alien].y != old_y) {
 860         /* Moved in y-dir. Erase whole alien. */
 861         rb->lcd_fillrect(x, y, ALIEN_WIDTH, ALIEN_HEIGHT);
 862     } else {
 863         if (aliens_right) {
 864             /* Erase left edge */
 865             rb->lcd_fillrect(x, y, ALIEN_SPEED, ALIEN_HEIGHT);
 866         } else {
 867             /* Erase right edge */
 868             x += ALIEN_WIDTH - ALIEN_SPEED;
 869             rb->lcd_fillrect(x, y, ALIEN_SPEED, ALIEN_HEIGHT);
 870         }
 871     }
 872
 873     /* Draw alien at new pos */
 874     x = PLAYFIELD_X + LIVES_X + aliens[curr_alien].x * ALIEN_SPEED;
 875     y = ALIEN_START_Y + aliens[curr_alien].y * ALIEN_HEIGHT;
 876     rb->lcd_bitmap_part(invadrox,
 877                         aliens[curr_alien].x & 1 ? ALIEN_WIDTH : 0, aliens[curr_alien].type * ALIEN_HEIGHT,
 878                         STRIDE, x, y, ALIEN_WIDTH, ALIEN_HEIGHT);
 879
 880     if (!next_alien()) {
 881         /* Round finished. Set curr_alien to first alive from bottom. */
 882         if (!first_alien()) {
 883             /* Should never happen. Taken care of in move_fire(). */
 884             return false;
 885         }
 886         /* TODO: Play next background sound */
 887     }
 888
 889     return true;
 890 }
 891
 892
 893 inline void draw_ship(void)
 894 {
 895     /* Erase old ship */
 896     if (old_ship_x < ship_x) {
 897         /* Move right. Erase leftmost part of ship. */
 898         rb->lcd_fillrect(old_ship_x, SHIP_Y, ship_x - old_ship_x, SHIP_HEIGHT);
 899     } else if (old_ship_x > ship_x) {
 900         /* Move left. Erase rightmost part of ship. */
 901         rb->lcd_fillrect(ship_x + SHIP_WIDTH, SHIP_Y, old_ship_x - ship_x, SHIP_HEIGHT);
 902     }
 903
 904     /* Draw ship */
 905     rb->lcd_bitmap_part(invadrox, SHIP_SRC_X, ship_frame * SHIP_HEIGHT,
 906                         STRIDE, ship_x, SHIP_Y, SHIP_WIDTH, SHIP_HEIGHT);
 907     if (ship_hit) {
 908         /* Alternate between frame 1 and 2 during hit */
 909         ship_frame_counter++;
 910         if (ship_frame_counter > 2) {
 911             ship_frame_counter = 0;
 912             ship_frame++;
 913             if (ship_frame > 2) {
 914                 ship_frame = 1;
 915             }
 916         }
 917     }
 918
 919     /* Save ship_x for next time */
 920     old_ship_x = ship_x;
 921 }
 922
 923
 924 inline void fire_alpha(int xc, int yc, fb_data color)
 925 {
 926     int x, y;
 927     unsigned char mask;
 928
 929     rb->lcd_set_foreground(color);
 930
 931     for (y = 0; y < FIRE_HEIGHT; y++) {
 932         mask = 1 << (FIRE_WIDTH - 1);
 933         for (x = -(FIRE_WIDTH / 2); x < (FIRE_WIDTH / 2); x++) {
 934             if (fire_sprite[y] & mask) {
 935                 rb->lcd_drawpixel(xc + x, yc + y);
 936             }
 937             mask >>= 1;
 938         }
 939     }
 940
 941     rb->lcd_set_foreground(LCD_BLACK);
 942 }
 943
 944
 945 void move_fire(void)
 946 {
 947     bool hit_green = false;
 948     bool hit_white = false;
 949     int i, j;
 950     static int exploding_alien = -1;
 951     fb_data pix;
 952
 953     if (fire == S_IDLE) {
 954         return;
 955     }
 956
 957     /* Alien hit. Wait until explosion is finished. */
 958     if (aliens_paralyzed < 0) {
 959         aliens_paralyzed++;
 960         if (aliens_paralyzed == 0) {
 961             /* Erase exploding_alien */
 962             rb->lcd_fillrect(PLAYFIELD_X + LIVES_X + aliens[exploding_alien].x * ALIEN_SPEED,
 963                              ALIEN_START_Y + aliens[exploding_alien].y * ALIEN_HEIGHT,
 964                              ALIEN_EXPLODE_WIDTH, ALIEN_HEIGHT);
 965             fire = S_IDLE;
 966             /* Special case. We killed curr_alien. */
 967             if (exploding_alien == curr_alien) {
 968                 if (!next_alien()) {
 969                     /* Round finished. Set curr_alien to first alive from bottom. */
 970                     first_alien();
 971                 }
 972             }
 973         }
 974         return;
 975     }
 976
 977     if (fire == S_ACTIVE) {
 978
 979         /* Erase */
 980         rb->lcd_vline(fire_x, fire_y, fire_y + SHOT_HEIGHT);
 981
 982         /* Check top */
 983         if (fire_y <= SCORENUM_Y + FONT_HEIGHT + 4) {
 984
 985             /* TODO: Play explode sound */
 986
 987             fire = S_EXPLODE;
 988             fire_target = TARGET_TOP;
 989             fire_alpha(fire_x, fire_y, UFO_RED);
 990             return;
 991         }
 992
 993         /* Move */
 994         fire_y -= FIRE_SPEED;
 995
 996         /* Hit UFO? */
 997         if (ufo_state == S_ACTIVE) {
 998             if ((ABS(ufo_x + UFO_WIDTH / 2 - fire_x) <= UFO_WIDTH / 2) &&
 999                 (fire_y <= UFO_Y + UFO_HEIGHT)) {
1000                 ufo_state = S_EXPLODE;
1001                 fire = S_EXPLODE;
1002                 fire_target = TARGET_UFO;
1003                 /* Center explosion */
1004                 ufo_x -= (UFO_EXPLODE_WIDTH - UFO_WIDTH) / 2;
1005                 rb->lcd_bitmap_part(invadrox, UFO_SRC_X, UFO_HEIGHT,
1006                                     STRIDE, ufo_x, UFO_Y - 1, UFO_EXPLODE_WIDTH, UFO_EXPLODE_HEIGHT);
1007                 return;
1008             }
1009         }
1010
1011         /* Hit bomb? (check position, not pixel value) */
1012         for (i = 0; i < max_bombs; i++) {
1013             if (bombs[i].state == S_ACTIVE) {
1014                 /* Count as hit if within BOMB_WIDTH pixels */
1015                 if ((ABS(bombs[i].x - fire_x) < BOMB_WIDTH) &&
1016                     (fire_y - bombs[i].y < BOMB_HEIGHT)) {
1017                     /* Erase bomb */
1018                     rb->lcd_fillrect(bombs[i].x, bombs[i].y, BOMB_WIDTH, BOMB_HEIGHT);
1019                     bombs[i].state = S_IDLE;
1020                     /* Explode ship fire */
1021                     fire = S_EXPLODE;
1022                     fire_target = TARGET_SHIELD;
1023                     fire_alpha(fire_x, fire_y, LCD_WHITE);
1024                     return;
1025                 }
1026             }
1027         }
1028
1029         /* Check for hit*/
1030         for (i = FIRE_SPEED; i >= 0; i--) {
1031             pix = get_pixel(fire_x, fire_y + i);
1032             if(pix == screen_white) {
1033                 hit_white = true;
1034                 fire_y += i;
1035                 break;
1036             }
1037             if(pix == screen_green) {
1038                 hit_green = true;
1039                 fire_y += i;
1040                 break;
1041             }
1042         }
1043
1044         if (hit_green) {
1045             /* Hit shield */
1046
1047             /* TODO: Play explode sound */
1048
1049             fire = S_EXPLODE;
1050             fire_target = TARGET_SHIELD;
1051             /* Center explosion around hit pixel */
1052             fire_y -= FIRE_HEIGHT / 2;
1053             fire_alpha(fire_x, fire_y, SLIME_GREEN);
1054             return;
1055         }
1056
1057         if (hit_white) {
1058
1059             /* Hit alien? */
1060             for (i = 0; i < 5 * ALIENS; i++) {
1061                 if (aliens[i].state != DEAD &&
1062                     (ABS(fire_x - (PLAYFIELD_X + LIVES_X + aliens[i].x * ALIEN_SPEED +
1063                                    ALIEN_WIDTH / 2)) <= ALIEN_WIDTH / 2) &&
1064                     (ABS(fire_y - (ALIEN_START_Y + aliens[i].y * ALIEN_HEIGHT +
1065                                    ALIEN_HEIGHT / 2)) <= ALIEN_HEIGHT / 2)) {
1066
1067                     /* TODO: play alien hit sound */
1068
1069                     if (aliens[i].state == BOMBER) {
1070                         /* Set (possible) alien above to bomber */
1071                         for (j = i - ALIENS; j >= 0; j -= ALIENS) {
1072                             if (aliens[j].state != DEAD) {
1073                                 /* printf("New bomber (%d, %d)\n", j % ALIENS, j / ALIENS); */
1074                                 aliens[j].state = BOMBER;
1075                                 break;
1076                             }
1077                         }
1078                     }
1079                     aliens[i].state = DEAD;
1080                     exploding_alien = i;
1081                     score += scores[aliens[i].type];
1082                     draw_score();
1083                     /* Update score part of screen */
1084                     rb->lcd_update_rect(SCORENUM_X, SCORENUM_Y,
1085                                         PLAYFIELD_WIDTH - 2 * NUMBERS_WIDTH, FONT_HEIGHT);
1086
1087                     /* Paralyze aliens S_EXPLODE frames */
1088                     aliens_paralyzed = S_EXPLODE;
1089                     rb->lcd_bitmap_part(invadrox, ALIEN_EXPLODE_SRC_X, ALIEN_EXPLODE_SRC_Y,
1090                                         STRIDE, PLAYFIELD_X + LIVES_X + aliens[i].x * ALIEN_SPEED,
1091                                         ALIEN_START_Y + aliens[i].y * ALIEN_HEIGHT,
1092                                         ALIEN_EXPLODE_WIDTH, ALIEN_EXPLODE_HEIGHT);
1093                     /* Since alien is 1 pixel taller than explosion sprite, erase bottom line */
1094                     rb->lcd_hline(PLAYFIELD_X + LIVES_X + aliens[i].x * ALIEN_SPEED,
1095                                   PLAYFIELD_X + LIVES_X + aliens[i].x * ALIEN_SPEED + ALIEN_WIDTH,
1096                                   ALIEN_START_Y + (aliens[i].y + 1) * ALIEN_HEIGHT - 1);
1097                     return;
1098                 }
1099             }
1100         }
1101
1102         /* Draw shot */
1103         rb->lcd_set_foreground(LCD_WHITE);
1104         rb->lcd_vline(fire_x, fire_y, fire_y + SHOT_HEIGHT);
1105         rb->lcd_set_foreground(LCD_BLACK);
1106     } else if (fire < S_IDLE) {
1107         /* Count up towards S_IDLE, then erase explosion */
1108         fire++;
1109         if (fire == S_IDLE) {
1110             /* Erase explosion */
1111             if (fire_target == TARGET_TOP) {
1112                 rb->lcd_fillrect(fire_x - (FIRE_WIDTH / 2), fire_y, FIRE_WIDTH, FIRE_HEIGHT);
1113             } else if (fire_target == TARGET_SHIELD) {
1114                 /* Draw explosion with black pixels */
1115                 fire_alpha(fire_x, fire_y, LCD_BLACK);
1116             }
1117         }
1118     }
1119 }
1120
1121
1122 /* Return a BOMBER alien */
1123 inline int random_bomber(void)
1124 {
1125     int i, col;
1126
1127     /* TODO: Weigh higher probability near ship */
1128     col = rb->rand() % ALIENS;
1129     for (i = col + 4 * ALIENS; i >= 0; i -= ALIENS) {
1130         if (aliens[i].state == BOMBER) {
1131             return i;
1132         }
1133     }
1134
1135     /* No BOMBER found in this col */
1136
1137     for (i = 0; i < 5 * ALIENS; i++) {
1138         if (aliens[i].state == BOMBER) {
1139             return i;
1140         }
1141     }
1142
1143     /* No BOMBER found at all (error?) */
1144
1145     return -1;
1146 }
1147
1148
1149 inline void draw_bomb(int i)
1150 {
1151     rb->lcd_bitmap_part(invadrox, BOMB_SRC_X + bombs[i].type * BOMB_WIDTH,
1152                         bombs[i].frame * (BOMB_HEIGHT + 1),
1153                         STRIDE, bombs[i].x, bombs[i].y,
1154                         BOMB_WIDTH, BOMB_HEIGHT);
1155     /* Advance frame */
1156     bombs[i].frame++;
1157     if (bombs[i].frame == bombs[i].frames) {
1158         bombs[i].frame = 0;
1159     }
1160 }
1161
1162
1163 void move_bombs(void)
1164 {
1165     int i, j, bomber;
1166     bool abort;
1167
1168     for (i = 0; i < max_bombs; i++) {
1169
1170         switch (bombs[i].state) {
1171
1172         case S_IDLE:
1173             if (ship_hit) {
1174                 continue;
1175             }
1176             bomber = random_bomber();
1177             if (bomber < 0) {
1178                 DBG("ERROR: No bomber available\n");
1179                 continue;
1180             }
1181             /* x, y */
1182             bombs[i].x = PLAYFIELD_X + LIVES_X + aliens[bomber].x * ALIEN_SPEED + ALIEN_WIDTH / 2;
1183             bombs[i].y = ALIEN_START_Y + (aliens[bomber].y + 1) * ALIEN_HEIGHT;
1184
1185             /* Check for duplets in x and y direction */
1186             abort = false;
1187             for (j = i - 1; j >= 0; j--) {
1188                 if ((bombs[j].state == S_ACTIVE) &&
1189                     ((bombs[i].x == bombs[j].x) || (bombs[i].y == bombs[j].y))) {
1190                     abort = true;
1191                     break;
1192                 }
1193             }
1194             if (abort) {
1195                 /* Skip this one, continue with next bomb */
1196                 /* printf("Bomb %d duplet of %d\n", i, j); */
1197                 continue;
1198             }
1199
1200             /* Passed, set type */
1201             bombs[i].type = rb->rand() % 3;
1202             bombs[i].frame = 0;
1203             if (bombs[i].type == 0) {
1204                 bombs[i].frames = 3;
1205             } else if (bombs[i].type == 1) {
1206                 bombs[i].frames = 4;
1207             } else {
1208                 bombs[i].frames = 6;
1209             }
1210
1211             /* Bombs away */
1212             bombs[i].state = S_ACTIVE;
1213             draw_bomb(i);
1214             continue;
1215
1216             break;
1217
1218         case S_ACTIVE:
1219             /* Erase old position */
1220             rb->lcd_fillrect(bombs[i].x, bombs[i].y, BOMB_WIDTH, BOMB_HEIGHT);
1221
1222             /* Move */
1223             bombs[i].y += BOMB_SPEED;
1224
1225             /* Check if bottom hit */
1226             if (bombs[i].y + BOMB_HEIGHT >= PLAYFIELD_Y) {
1227                 bombs[i].y = PLAYFIELD_Y - FIRE_HEIGHT + 1;
1228                 fire_alpha(bombs[i].x, bombs[i].y, LCD_WHITE);
1229                 bombs[i].state = S_EXPLODE;
1230                 bombs[i].target = TARGET_BOTTOM;
1231                 break;
1232             }
1233
1234             /* Check for green (ship or shield) */
1235             for (j = BOMB_HEIGHT; j >= BOMB_HEIGHT - BOMB_SPEED; j--) {
1236                 bombs[i].target = 0;
1237                 if(get_pixel(bombs[i].x + BOMB_WIDTH / 2, bombs[i].y + j) == screen_green) {
1238                     /* Move to hit pixel */
1239                     bombs[i].x += BOMB_WIDTH / 2;
1240                     bombs[i].y += j;
1241
1242                     /* Check if ship is hit */
1243                     if (bombs[i].y > SHIELD_Y + SHIELD_HEIGHT && bombs[i].y < PLAYFIELD_Y) {
1244
1245                         /* TODO: play ship hit sound */
1246
1247                         ship_hit = true;
1248                         ship_frame = 1;
1249                         ship_frame_counter = 0;
1250                         bombs[i].state = S_EXPLODE * 4;
1251                         bombs[i].target = TARGET_SHIP;
1252                         rb->lcd_bitmap_part(invadrox, SHIP_SRC_X, 1 * SHIP_HEIGHT, STRIDE,
1253                                             ship_x, SHIP_Y, SHIP_WIDTH, SHIP_HEIGHT);
1254                         break;
1255                     }
1256                     /* Shield hit */
1257                     bombs[i].state = S_EXPLODE;
1258                     bombs[i].target = TARGET_SHIELD;
1259                     /* Center explosion around hit pixel in shield */
1260                     bombs[i].y -= FIRE_HEIGHT / 2;
1261                     fire_alpha(bombs[i].x, bombs[i].y, SLIME_GREEN);
1262                     break;
1263                 }
1264             }
1265
1266             if (bombs[i].target != 0) {
1267                 /* Hit ship or shield, continue */
1268                 continue;
1269             }
1270
1271             draw_bomb(i);
1272             break;
1273
1274         default:
1275             /* If we get here state should be < 0, exploding */
1276             bombs[i].state++;
1277             if (bombs[i].state == S_IDLE) {
1278                 if (ship_hit) {
1279                     /* Erase explosion */
1280                     rb->lcd_fillrect(ship_x, SHIP_Y, SHIP_WIDTH, SHIP_HEIGHT);
1281                     rb->lcd_update_rect(ship_x, SHIP_Y, SHIP_WIDTH, SHIP_HEIGHT);
1282                     ship_hit = false;
1283                     ship_frame = 0;
1284                     ship_x = PLAYFIELD_X + 2 * LIVES_X;
1285                     lives--;
1286                     if (lives == 0) {
1287                         game_over = true;
1288                         return;
1289                     }
1290                     draw_lives();
1291                     /* Sleep 1s to give player time to examine lives left */
1292                     rb->sleep(HZ);
1293                 }
1294                 /* Erase explosion (even if ship hit, might be another bomb) */
1295                 fire_alpha(bombs[i].x, bombs[i].y, LCD_BLACK);
1296             }
1297             break;
1298         }
1299     }
1300 }
1301
1302
1303 inline void move_ship(void)
1304 {
1305     ship_dir += ship_acc;
1306     if (ship_dir > max_ship_speed) {
1307         ship_dir = max_ship_speed;
1308     }
1309     if (ship_dir < -max_ship_speed) {
1310         ship_dir = -max_ship_speed;
1311     }
1312     ship_x += ship_dir;
1313     if (ship_x < SHIP_MIN_X) {
1314         ship_x = SHIP_MIN_X;
1315     }
1316     if (ship_x > SHIP_MAX_X) {
1317         ship_x = SHIP_MAX_X;
1318     }
1319
1320     draw_ship();
1321 }
1322
1323
1324 /* Unidentified Flying Object */
1325 void move_ufo(void)
1326 {
1327     static int ufo_speed;
1328     static int counter;
1329     int mystery_score;
1330
1331     switch (ufo_state) {
1332
1333     case S_IDLE:
1334
1335         if (rb->rand() % 500 == 0) {
1336             /* Uh-oh, it's time to launch a mystery UFO */
1337
1338             /* TODO: Play UFO sound */
1339
1340             if (rb->rand() % 2) {
1341                 ufo_speed = UFO_SPEED;
1342                 ufo_x = PLAYFIELD_X;
1343             } else {
1344                 ufo_speed = -UFO_SPEED;
1345                 ufo_x = LCD_WIDTH - PLAYFIELD_X - UFO_WIDTH;
1346             }
1347             ufo_state = S_ACTIVE;
1348             /* UFO will be drawn next frame */
1349         }
1350         break;
1351
1352     case S_ACTIVE:
1353         /* Erase old pos */
1354         rb->lcd_fillrect(ufo_x, UFO_Y, UFO_WIDTH, UFO_HEIGHT);
1355         /* Move */
1356         ufo_x += ufo_speed;
1357         /* Check bounds */
1358         if (ufo_x < PLAYFIELD_X || ufo_x > LCD_WIDTH - PLAYFIELD_X - UFO_WIDTH) {
1359             ufo_state = S_IDLE;
1360             break;
1361         }
1362         /* Draw new pos */
1363         rb->lcd_bitmap_part(invadrox, UFO_SRC_X, 0,
1364                             STRIDE, ufo_x, UFO_Y, UFO_WIDTH, UFO_HEIGHT);
1365         break;
1366
1367     case S_SHOWSCORE:
1368         counter++;
1369         if (counter == S_IDLE) {
1370             /* Erase mystery number */
1371             rb->lcd_fillrect(ufo_x, UFO_Y, 3 * NUMBERS_WIDTH + 2 * NUM_SPACING, FONT_HEIGHT);
1372             ufo_state = S_IDLE;
1373         }
1374         break;
1375
1376     default:
1377         /* Exploding */
1378         ufo_state++;
1379         if (ufo_state == S_IDLE) {
1380             /* Erase explosion */
1381             rb->lcd_fillrect(ufo_x, UFO_Y - 1, UFO_EXPLODE_WIDTH, UFO_EXPLODE_HEIGHT);
1382             ufo_state = S_SHOWSCORE;
1383             counter = S_EXPLODE * 4;
1384             /* Draw mystery_score, sleep, increase score and continue */
1385             mystery_score = 50 + (rb->rand() % 6) * 50;
1386             if (mystery_score < 100) {
1387                 draw_number(ufo_x, UFO_Y, mystery_score, 2);
1388             } else {
1389                 draw_number(ufo_x, UFO_Y, mystery_score, 3);
1390             }
1391             score += mystery_score;
1392             draw_score();
1393         }
1394         break;
1395     }
1396 }
1397
1398
1399 void draw_background(void)
1400 {
1401
1402 #if (LCD_WIDTH == 320) && (LCD_HEIGHT == 240)
1403     /* Erase background to black */
1404     rb->lcd_fillrect(PLAYFIELD_X, 0, PLAYFIELD_WIDTH, LCD_HEIGHT);
1405     /* Left and right bitmaps */
1406     rb->lcd_bitmap(invadrox_left, 0, 0, PLAYFIELD_X, LCD_HEIGHT);
1407     rb->lcd_bitmap(invadrox_right, LCD_WIDTH - PLAYFIELD_X, 0, PLAYFIELD_X, LCD_HEIGHT);
1408 #else
1409     rb->lcd_fillrect(0, 0, LCD_WIDTH, LCD_HEIGHT);
1410 #endif
1411
1412 #if ((LCD_WIDTH == 240) && (LCD_HEIGHT == 320)) || ((LCD_WIDTH == 176) && (LCD_HEIGHT == 220))
1413     rb->lcd_bitmap(invadrox_logo, 0, 0, LCD_WIDTH, SCORE_Y);
1414 #endif
1415
1416     rb->lcd_update();
1417 }
1418
1419
1420 void new_level(void)
1421 {
1422     int i;
1423
1424     draw_background();
1425     /* Give an extra life for each new level */
1426     if (lives < MAX_LIVES) {
1427         lives++;
1428     }
1429     draw_lives();
1430
1431     /* Score */
1432     rb->lcd_bitmap_part(invadrox, SCORE_SRC_X, SCORE_SRC_Y,
1433                         STRIDE, PLAYFIELD_X, SCORE_Y, SCORE_WIDTH, FONT_HEIGHT);
1434     /* Hi-score */
1435     rb->lcd_bitmap_part(invadrox, 0, SCORE_SRC_Y,
1436                         STRIDE, HISCORE_X, SCORE_Y,
1437                         HISCORE_WIDTH, FONT_HEIGHT);
1438     draw_score();
1439     draw_number(HISCORENUM_X, SCORENUM_Y, hiscore.score, 4);
1440
1441     level++;
1442     draw_level();
1443     level_finished = false;
1444
1445     ufo_state = S_IDLE;
1446
1447     /* Init alien positions and states */
1448     for (i = 0; i < 4 * ALIENS; i++) {
1449         aliens[i].x = 0 + (i % ALIENS) * ((ALIEN_WIDTH + ALIEN_SPACING) / ALIEN_SPEED);
1450         aliens[i].y = 2 * (i / ALIENS);
1451         aliens[i].state = ALIVE;
1452     }
1453     /* Last row, bombers */
1454     for (i = 4 * ALIENS; i < 5 * ALIENS; i++) {
1455         aliens[i].x = 0 + (i % ALIENS) * ((ALIEN_WIDTH + ALIEN_SPACING) / ALIEN_SPEED);
1456         aliens[i].y = 2 * (i / ALIENS);
1457         aliens[i].state = BOMBER;
1458     }
1459
1460     /* Init bombs to inactive (S_IDLE) */
1461     for (i = 0; i < MAX_BOMBS; i++) {
1462         bombs[i].state = S_IDLE;
1463     }
1464
1465     /* Start aliens closer to earth from level 2 */
1466     for (i = 0; i < 5 * ALIENS; i++) {
1467         if (level < 6) {
1468             aliens[i].y += level - 1;
1469         } else {
1470             aliens[i].y += 5;
1471         }
1472     }
1473
1474     /* Max concurrent bombs */
1475     max_bombs = 1;
1476
1477     gamespeed = 2;
1478
1479     if (level > 1) {
1480         max_bombs++;
1481     }
1482
1483     /* Increase speed */
1484     if (level > 2) {
1485         gamespeed++;
1486     }
1487
1488     if (level > 3) {
1489         max_bombs++;
1490     }
1491
1492     /* Increase speed more */
1493     if (level > 4) {
1494         gamespeed++;
1495     }
1496
1497     if (level > 5) {
1498         max_bombs++;
1499     }
1500
1501     /* 4 shields */
1502     for (i = 1; i <= 4; i++) {
1503         rb->lcd_bitmap_part(invadrox, SHIELD_SRC_X, SHIELD_SRC_Y, STRIDE,
1504                             PLAYFIELD_X + i * PLAYFIELD_WIDTH / 5 - SHIELD_WIDTH / 2,
1505                             SHIELD_Y, SHIELD_WIDTH, SHIELD_HEIGHT);
1506     }
1507
1508     /* Bottom line */
1509     rb->lcd_set_foreground(SLIME_GREEN);
1510     rb->lcd_hline(PLAYFIELD_X, LCD_WIDTH - PLAYFIELD_X, PLAYFIELD_Y);
1511     /* Restore foreground to black (for fast erase later). */
1512     rb->lcd_set_foreground(LCD_BLACK);
1513
1514     ship_x = PLAYFIELD_X + 2 * LIVES_X;
1515     if (level == 1) {
1516         old_ship_x = ship_x;
1517     }
1518     ship_dir = 0;
1519     ship_acc = 0;
1520     ship_frame = 0;
1521     ship_hit = false;
1522     fire = S_IDLE;
1523     /* Start moving the bottom row left to right */
1524     curr_alien = 4 * ALIENS;
1525     aliens_paralyzed = 0;
1526     aliens_right = true;
1527     aliens_down = false;
1528     hit_left_border = false;
1529     hit_right_border = false;
1530     /* TODO: Change max_ship_speed to 3 at higher levels */
1531     max_ship_speed = 2;
1532
1533     draw_aliens();
1534
1535     rb->lcd_update();
1536 }
1537
1538
1539 void init_invadrox(void)
1540 {
1541     int i;
1542
1543     /* Seed random number generator with a "random" number */
1544     rb->srand(rb->get_time()->tm_sec + rb->get_time()->tm_min * 60);
1545
1546     /* Precalculate start of each scanline */
1547     for (i = 0; i < LCD_HEIGHT; i++) {
1548 #if (LCD_DEPTH >= 8)
1549         ytab[i] = i * LCD_WIDTH;
1550 #elif (LCD_DEPTH == 2) && (LCD_PIXELFORMAT == HORIZONTAL_PACKING)
1551         ytab[i] = i * (LCD_WIDTH / 4);
1552 #elif (LCD_DEPTH == 2) && (LCD_PIXELFORMAT == VERTICAL_PACKING)
1553         ytab[i] = (i / 4) * LCD_WIDTH;
1554 #else
1555         #error pixelformat not implemented yet
1556 #endif
1557     }
1558
1559     rb->lcd_set_background(LCD_BLACK);
1560     rb->lcd_set_foreground(LCD_BLACK);
1561
1562     highscore_init(rb);
1563     if (highscore_load(HISCOREFILE, &hiscore, 1) < 0) {
1564         /* Init hiscore to 0 */
1565         rb->strncpy(hiscore.name, "Invader", sizeof(hiscore.name));
1566         hiscore.score = 0;
1567         hiscore.level = 1;
1568     }
1569
1570     /* Init alien types in aliens array */
1571     for (i = 0; i < 1 * ALIENS; i++) {
1572         aliens[i].type = 0; /* Kang */
1573     }
1574     for (; i < 3 * ALIENS; i++) {
1575         aliens[i].type = 1; /* Kodos */
1576     }
1577     for (; i < 5 * ALIENS; i++) {
1578         aliens[i].type = 2; /* Serak */
1579     }
1580
1581
1582     /* Save screen white color */
1583     rb->lcd_set_foreground(LCD_WHITE);
1584     rb->lcd_drawpixel(0, 0);
1585     rb->lcd_update_rect(0, 0, 1, 1);
1586     screen_white = get_pixel(0, 0);
1587
1588     /* Save screen green color */
1589     rb->lcd_set_foreground(SLIME_GREEN);
1590     rb->lcd_drawpixel(0, 0);
1591     rb->lcd_update_rect(0, 0, 1, 1);
1592     screen_green = get_pixel(0, 0);
1593
1594     /* Restore black foreground */
1595     rb->lcd_set_foreground(LCD_BLACK);
1596
1597     new_level();
1598
1599     /* Flash score at start */
1600     for (i = 0; i < 5; i++) {
1601         rb->lcd_fillrect(SCORENUM_X, SCORENUM_Y,
1602                          4 * NUMBERS_WIDTH + 3 * NUM_SPACING,
1603                          FONT_HEIGHT);
1604         rb->lcd_update_rect(SCORENUM_X, SCORENUM_Y,
1605                             4 * NUMBERS_WIDTH + 3 * NUM_SPACING,
1606                             FONT_HEIGHT);
1607         rb->sleep(HZ / 10);
1608         draw_number(SCORENUM_X, SCORENUM_Y, score, 4);
1609         rb->sleep(HZ / 10);
1610     }
1611 }
1612
1613
1614 inline bool handle_buttons(void)
1615 {
1616     static unsigned int oldbuttonstate = 0;
1617
1618     unsigned int released, pressed, newbuttonstate;
1619
1620     if (ship_hit) {
1621         /* Don't allow ship movement during explosion */
1622         newbuttonstate = 0;
1623     } else {
1624         newbuttonstate = rb->button_status();
1625     }
1626     if(newbuttonstate == oldbuttonstate) {
1627         if (newbuttonstate == 0) {
1628             /* No button pressed. Stop ship. */
1629             ship_acc = 0;
1630             if (ship_dir > 0) {
1631                 ship_dir--;
1632             }
1633             if (ship_dir < 0) {
1634                 ship_dir++;
1635             }
1636         }
1637         /* return false; */
1638         goto check_usb;
1639     }
1640     released = ~newbuttonstate & oldbuttonstate;
1641     pressed = newbuttonstate & ~oldbuttonstate;
1642     oldbuttonstate = newbuttonstate;
1643     if (pressed) {
1644         if (pressed & LEFT) {
1645             if (ship_acc > -1) {
1646                 ship_acc--;
1647             }
1648         }
1649         if (pressed & RIGHT) {
1650             if (ship_acc < 1) {
1651                 ship_acc++;
1652             }
1653         }
1654         if (pressed & FIRE) {
1655             if (fire == S_IDLE) {
1656                 /* Fire shot */
1657                 fire_x = ship_x + SHIP_WIDTH / 2;
1658                 fire_y = SHIP_Y - SHOT_HEIGHT;
1659                 fire = S_ACTIVE;
1660                 /* TODO: play fire sound */
1661             }
1662         }
1663 #ifdef RC_QUIT
1664         if (pressed & RC_QUIT) {
1665             rb->splash(HZ * 1, "Quit");
1666             return true;
1667         }
1668 #endif
1669         if (pressed & QUIT) {
1670             rb->splash(HZ * 1, "Quit");
1671             return true;
1672         }
1673     }
1674     if (released) {
1675         if ((released & LEFT)) {
1676             if (ship_acc < 1) {
1677                 ship_acc++;
1678             }
1679         }
1680         if ((released & RIGHT)) {
1681             if (ship_acc > -1) {
1682                 ship_acc--;
1683             }
1684         }
1685     }
1686
1687 check_usb:
1688
1689     /* Quit if USB is connected */
1690     if (rb->button_get(false) == SYS_USB_CONNECTED) {
1691         return true;
1692     }
1693
1694     return false;
1695 }
1696
1697
1698 void game_loop(void)
1699 {
1700     int i, end;
1701
1702     /* Print dimensions (just for debugging) */
1703     DBG("%03dx%03dx%02d\n", LCD_WIDTH, LCD_HEIGHT, LCD_DEPTH);
1704
1705     /* Init */
1706     init_invadrox();
1707
1708     while (1) {
1709         /* Convert CYCLETIME (in ms) to HZ */
1710         end = *rb->current_tick + (CYCLETIME * HZ) / 1000;
1711
1712         if (handle_buttons()) {
1713             return;
1714         }
1715
1716         /* Animate */
1717         move_ship();
1718         move_fire();
1719
1720         /* Check if level is finished (marked by move_fire) */
1721         if (level_finished) {
1722             /* TODO: Play level finished sound */
1723             new_level();
1724         }
1725
1726         move_ufo();
1727
1728         /* Move aliens */
1729         if (!aliens_paralyzed && !ship_hit) {
1730             for (i = 0; i < gamespeed; i++) {
1731                 if (!move_aliens()) {
1732                     if (game_over) {
1733                         return;
1734                     }
1735                 }
1736             }
1737         }
1738
1739         /* Move alien bombs */
1740         move_bombs();
1741         if (game_over) {
1742             return;
1743         }
1744
1745         /* Update "playfield" rect */
1746         rb->lcd_update_rect(PLAYFIELD_X, SCORENUM_Y + FONT_HEIGHT,
1747                             PLAYFIELD_WIDTH,
1748                             PLAYFIELD_Y + 1 - SCORENUM_Y - FONT_HEIGHT);
1749
1750         /* Wait until next frame */
1751         DBG("%d (%d)\n", end - *rb->current_tick, (CYCLETIME * HZ) / 1000);
1752         if (end > *rb->current_tick) {
1753             rb->sleep(end - *rb->current_tick);
1754         } else {
1755             rb->yield();
1756         }
1757
1758     } /* end while */
1759 }
1760
1761
1762 /* this is the plugin entry point */
1763 enum plugin_status plugin_start(struct plugin_api* api, UNUSED void* parameter)
1764 {
1765     rb = api;
1766
1767     rb->lcd_setfont(FONT_SYSFIXED);
1768     /* Turn off backlight timeout */
1769     backlight_force_on(rb); /* backlight control in lib/helper.c */
1770
1771     /* now go ahead and have fun! */
1772     game_loop();
1773
1774     /* Game Over. */
1775     /* TODO: Play game over sound */
1776     rb->splash(HZ * 2, "Game Over");
1777     if (score > hiscore.score) {
1778         /* Save new hiscore */
1779         hiscore.score = score;
1780         hiscore.level = level;
1781         highscore_save(HISCOREFILE, &hiscore, 1);
1782     }
1783
1784     /* Restore user's original backlight setting */
1785     rb->lcd_setfont(FONT_UI);
1786     /* Turn on backlight timeout (revert to settings) */
1787     backlight_use_settings(rb); /* backlight control in lib/helper.c */
1788
1789     return PLUGIN_OK;
1790 }
1791
1792
1793
1794 /**
1795  * GNU Emacs settings: Kernighan & Richie coding style with
1796  *                     4 spaces indent and no tabs.
1797  * Local Variables:
1798  *  c-file-style: "k&r"
1799  *  c-basic-offset: 4
1800  *  indent-tabs-mode: nil
1801  * End:
1802  */