+/* often used screen positions */
+#define SX 8
+#define SY 8
+#define REAL_SX (SX - 2)
+#define REAL_SY (SY - 2)
+#define DX 566
+#define DY 60
+#define VX DX
+#define VY 400
+#define EX DX
+#define EY (VY - 44)
+#define TILEX 32
+#define TILEY 32
+#define MINI_TILEX (TILEX / 2)
+#define MINI_TILEY (TILEY / 2)
+#define MICRO_TILEX (TILEX / 8)
+#define MICRO_TILEY (TILEY / 8)
+#define MIDPOSX (SCR_FIELDX / 2)
+#define MIDPOSY (SCR_FIELDY / 2)
+#define SXSIZE (SCR_FIELDX * TILEX)
+#define SYSIZE (SCR_FIELDY * TILEY)
+#define FXSIZE ((SCR_FIELDX + 2) * TILEX)
+#define FYSIZE ((SCR_FIELDY + 2) * TILEY)
+#define DXSIZE 100
+#define DYSIZE 280
+#define VXSIZE DXSIZE
+#define VYSIZE 100
+#define EXSIZE DXSIZE
+#define EYSIZE (VYSIZE + 44)
+#define FULL_SXSIZE (2 + SXSIZE + 2)
+#define FULL_SYSIZE (2 + SYSIZE + 2)
+#define MICROLEV_XSIZE ((STD_LEV_FIELDX + 2) * MICRO_TILEX)
+#define MICROLEV_YSIZE ((STD_LEV_FIELDY + 2) * MICRO_TILEY)
+#define MICROLEV_XPOS (SX + (SXSIZE - MICROLEV_XSIZE) / 2)
+#define MICROLEV_YPOS (SX + 12 * TILEY - MICRO_TILEY)
+#define MICROLABEL_YPOS (MICROLEV_YPOS + MICROLEV_YSIZE + 7)
+
+
+/* score for elements */
+#define SC_EMERALD 0
+#define SC_DIAMOND 1
+#define SC_BUG 2
+#define SC_SPACESHIP 3
+#define SC_YAMYAM 4
+#define SC_ROBOT 5
+#define SC_PACMAN 6
+#define SC_NUT 7
+#define SC_DYNAMITE 8
+#define SC_KEY 9
+#define SC_TIME_BONUS 10
+#define SC_CRYSTAL 11
+#define SC_PEARL 12
+#define SC_SHIELD 13
+
+
+/* "real" level file elements */
+#define EL_UNDEFINED -1
+
+#define EL_EMPTY_SPACE 0
+#define EL_EMPTY EL_EMPTY_SPACE
+#define EL_SAND 1
+#define EL_WALL 2
+#define EL_WALL_SLIPPERY 3
+#define EL_ROCK 4
+#define EL_KEY_OBSOLETE 5 /* obsolete; now EL_KEY_1 */
+#define EL_EMERALD 6
+#define EL_EXIT_CLOSED 7
+#define EL_PLAYER_OBSOLETE 8 /* obsolete; now EL_PLAYER_1 */
+#define EL_BUG 9
+#define EL_SPACESHIP 10
+#define EL_YAMYAM 11
+#define EL_ROBOT 12
+#define EL_STEELWALL 13
+#define EL_DIAMOND 14
+#define EL_AMOEBA_DEAD 15
+#define EL_QUICKSAND_EMPTY 16
+#define EL_QUICKSAND_FULL 17
+#define EL_AMOEBA_DROP 18
+#define EL_BOMB 19
+#define EL_MAGIC_WALL 20
+#define EL_SPEED_PILL 21
+#define EL_ACID 22
+#define EL_AMOEBA_WET 23
+#define EL_AMOEBA_DRY 24
+#define EL_NUT 25
+#define EL_GAME_OF_LIFE 26
+#define EL_BIOMAZE 27
+#define EL_DYNAMITE_ACTIVE 28
+#define EL_STONEBLOCK 29
+#define EL_ROBOT_WHEEL 30
+#define EL_ROBOT_WHEEL_ACTIVE 31
+#define EL_KEY_1 32
+#define EL_KEY_2 33
+#define EL_KEY_3 34
+#define EL_KEY_4 35
+#define EL_GATE_1 36
+#define EL_GATE_2 37
+#define EL_GATE_3 38
+#define EL_GATE_4 39
+#define EL_GATE_1_GRAY 40
+#define EL_GATE_2_GRAY 41
+#define EL_GATE_3_GRAY 42
+#define EL_GATE_4_GRAY 43
+#define EL_DYNAMITE 44
+#define EL_PACMAN 45
+#define EL_INVISIBLE_WALL 46
+#define EL_LAMP 47
+#define EL_LAMP_ACTIVE 48
+#define EL_WALL_EMERALD 49
+#define EL_WALL_DIAMOND 50
+#define EL_AMOEBA_FULL 51
+#define EL_BD_AMOEBA 52
+#define EL_TIME_ORB_FULL 53
+#define EL_TIME_ORB_EMPTY 54
+#define EL_EXPANDABLE_WALL 55
+#define EL_BD_DIAMOND 56
+#define EL_EMERALD_YELLOW 57
+#define EL_WALL_BD_DIAMOND 58
+#define EL_WALL_EMERALD_YELLOW 59
+#define EL_DARK_YAMYAM 60
+#define EL_BD_MAGIC_WALL 61
+#define EL_INVISIBLE_STEELWALL 62
+
+#define EL_MAZE_RUNNER 63
+
+#define EL_DYNABOMB_INCREASE_NUMBER 64
+#define EL_DYNABOMB_INCREASE_SIZE 65
+#define EL_DYNABOMB_INCREASE_POWER 66
+#define EL_SOKOBAN_OBJECT 67
+#define EL_SOKOBAN_FIELD_EMPTY 68
+#define EL_SOKOBAN_FIELD_FULL 69
+#define EL_BD_BUTTERFLY_RIGHT 70
+#define EL_BD_BUTTERFLY_UP 71
+#define EL_BD_BUTTERFLY_LEFT 72
+#define EL_BD_BUTTERFLY_DOWN 73
+#define EL_BD_FIREFLY_RIGHT 74
+#define EL_BD_FIREFLY_UP 75
+#define EL_BD_FIREFLY_LEFT 76
+#define EL_BD_FIREFLY_DOWN 77
+#define EL_BD_BUTTERFLY_1 EL_BD_BUTTERFLY_DOWN
+#define EL_BD_BUTTERFLY_2 EL_BD_BUTTERFLY_LEFT
+#define EL_BD_BUTTERFLY_3 EL_BD_BUTTERFLY_UP
+#define EL_BD_BUTTERFLY_4 EL_BD_BUTTERFLY_RIGHT
+#define EL_BD_FIREFLY_1 EL_BD_FIREFLY_LEFT
+#define EL_BD_FIREFLY_2 EL_BD_FIREFLY_DOWN
+#define EL_BD_FIREFLY_3 EL_BD_FIREFLY_RIGHT
+#define EL_BD_FIREFLY_4 EL_BD_FIREFLY_UP
+#define EL_BD_BUTTERFLY 78
+#define EL_BD_FIREFLY 79
+#define EL_PLAYER_1 80
+#define EL_PLAYER_2 81
+#define EL_PLAYER_3 82
+#define EL_PLAYER_4 83
+#define EL_BUG_RIGHT 84
+#define EL_BUG_UP 85
+#define EL_BUG_LEFT 86
+#define EL_BUG_DOWN 87
+#define EL_SPACESHIP_RIGHT 88
+#define EL_SPACESHIP_UP 89
+#define EL_SPACESHIP_LEFT 90
+#define EL_SPACESHIP_DOWN 91
+#define EL_PACMAN_RIGHT 92
+#define EL_PACMAN_UP 93
+#define EL_PACMAN_LEFT 94
+#define EL_PACMAN_DOWN 95
+#define EL_EMERALD_RED 96
+#define EL_EMERALD_PURPLE 97
+#define EL_WALL_EMERALD_RED 98
+#define EL_WALL_EMERALD_PURPLE 99
+#define EL_ACID_POOL_TOPLEFT 100
+#define EL_ACID_POOL_TOPRIGHT 101
+#define EL_ACID_POOL_BOTTOMLEFT 102
+#define EL_ACID_POOL_BOTTOM 103
+#define EL_ACID_POOL_BOTTOMRIGHT 104
+#define EL_BD_WALL 105
+#define EL_BD_ROCK 106
+#define EL_EXIT_OPEN 107
+#define EL_BLACK_ORB 108
+#define EL_AMOEBA_TO_DIAMOND 109
+#define EL_MOLE 110
+#define EL_PENGUIN 111
+#define EL_SATELLITE 112
+#define EL_ARROW_LEFT 113
+#define EL_ARROW_RIGHT 114
+#define EL_ARROW_UP 115
+#define EL_ARROW_DOWN 116
+#define EL_PIG 117
+#define EL_DRAGON 118
+
+#define EL_EM_KEY_1_FILE_OBSOLETE 119 /* obsolete; now EL_EM_KEY_1 */
+
+#define EL_CHAR_START 120
+#define EL_CHAR_ASCII0 (EL_CHAR_START - 32)
+#define EL_CHAR_ASCII0_START (EL_CHAR_ASCII0 + 32)
+
+#include "conf_chr.h" /* include auto-generated data structure definitions */
+
+#define EL_CHAR_ASCII0_END (EL_CHAR_ASCII0 + 111)
+#define EL_CHAR_END (EL_CHAR_START + 79)
+
+#define EL_CHAR(c) (EL_CHAR_ASCII0 + MAP_FONT_ASCII(c))
+
+#define EL_EXPANDABLE_WALL_HORIZONTAL 200
+#define EL_EXPANDABLE_WALL_VERTICAL 201
+#define EL_EXPANDABLE_WALL_ANY 202
+
+#define EL_EM_GATE_1 203
+#define EL_EM_GATE_2 204
+#define EL_EM_GATE_3 205
+#define EL_EM_GATE_4 206
+
+#define EL_EM_KEY_2_FILE_OBSOLETE 207 /* obsolete; now EL_EM_KEY_2 */
+#define EL_EM_KEY_3_FILE_OBSOLETE 208 /* obsolete; now EL_EM_KEY_3 */
+#define EL_EM_KEY_4_FILE_OBSOLETE 209 /* obsolete; now EL_EM_KEY_4 */
+
+#define EL_SP_START 210
+#define EL_SP_EMPTY_SPACE (EL_SP_START + 0)
+#define EL_SP_EMPTY EL_SP_EMPTY_SPACE
+#define EL_SP_ZONK (EL_SP_START + 1)
+#define EL_SP_BASE (EL_SP_START + 2)
+#define EL_SP_MURPHY (EL_SP_START + 3)
+#define EL_SP_INFOTRON (EL_SP_START + 4)
+#define EL_SP_CHIP_SINGLE (EL_SP_START + 5)
+#define EL_SP_HARDWARE_GRAY (EL_SP_START + 6)
+#define EL_SP_EXIT_CLOSED (EL_SP_START + 7)
+#define EL_SP_DISK_ORANGE (EL_SP_START + 8)
+#define EL_SP_PORT_RIGHT (EL_SP_START + 9)
+#define EL_SP_PORT_DOWN (EL_SP_START + 10)
+#define EL_SP_PORT_LEFT (EL_SP_START + 11)
+#define EL_SP_PORT_UP (EL_SP_START + 12)
+#define EL_SP_GRAVITY_PORT_RIGHT (EL_SP_START + 13)
+#define EL_SP_GRAVITY_PORT_DOWN (EL_SP_START + 14)
+#define EL_SP_GRAVITY_PORT_LEFT (EL_SP_START + 15)
+#define EL_SP_GRAVITY_PORT_UP (EL_SP_START + 16)
+#define EL_SP_SNIKSNAK (EL_SP_START + 17)
+#define EL_SP_DISK_YELLOW (EL_SP_START + 18)
+#define EL_SP_TERMINAL (EL_SP_START + 19)
+#define EL_SP_DISK_RED (EL_SP_START + 20)
+#define EL_SP_PORT_VERTICAL (EL_SP_START + 21)
+#define EL_SP_PORT_HORIZONTAL (EL_SP_START + 22)
+#define EL_SP_PORT_ANY (EL_SP_START + 23)
+#define EL_SP_ELECTRON (EL_SP_START + 24)
+#define EL_SP_BUGGY_BASE (EL_SP_START + 25)
+#define EL_SP_CHIP_LEFT (EL_SP_START + 26)
+#define EL_SP_CHIP_RIGHT (EL_SP_START + 27)
+#define EL_SP_HARDWARE_BASE_1 (EL_SP_START + 28)
+#define EL_SP_HARDWARE_GREEN (EL_SP_START + 29)
+#define EL_SP_HARDWARE_BLUE (EL_SP_START + 30)
+#define EL_SP_HARDWARE_RED (EL_SP_START + 31)
+#define EL_SP_HARDWARE_YELLOW (EL_SP_START + 32)
+#define EL_SP_HARDWARE_BASE_2 (EL_SP_START + 33)
+#define EL_SP_HARDWARE_BASE_3 (EL_SP_START + 34)
+#define EL_SP_HARDWARE_BASE_4 (EL_SP_START + 35)
+#define EL_SP_HARDWARE_BASE_5 (EL_SP_START + 36)
+#define EL_SP_HARDWARE_BASE_6 (EL_SP_START + 37)
+#define EL_SP_CHIP_TOP (EL_SP_START + 38)
+#define EL_SP_CHIP_BOTTOM (EL_SP_START + 39)
+#define EL_SP_END (EL_SP_START + 39)
+
+#define EL_EM_GATE_1_GRAY 250
+#define EL_EM_GATE_2_GRAY 251
+#define EL_EM_GATE_3_GRAY 252
+#define EL_EM_GATE_4_GRAY 253
+
+#define EL_UNUSED_254 254
+#define EL_UNUSED_255 255
+
+#define EL_PEARL 256
+#define EL_CRYSTAL 257
+#define EL_WALL_PEARL 258
+#define EL_WALL_CRYSTAL 259
+#define EL_DOOR_WHITE 260
+#define EL_DOOR_WHITE_GRAY 261
+#define EL_KEY_WHITE 262
+#define EL_SHIELD_NORMAL 263
+#define EL_EXTRA_TIME 264
+#define EL_SWITCHGATE_OPEN 265
+#define EL_SWITCHGATE_CLOSED 266
+#define EL_SWITCHGATE_SWITCH_UP 267
+#define EL_SWITCHGATE_SWITCH_DOWN 268
+
+#define EL_UNUSED_269 269
+#define EL_UNUSED_270 270
+
+#define EL_CONVEYOR_BELT_1_LEFT 271
+#define EL_CONVEYOR_BELT_1_MIDDLE 272
+#define EL_CONVEYOR_BELT_1_RIGHT 273
+#define EL_CONVEYOR_BELT_1_SWITCH_LEFT 274
+#define EL_CONVEYOR_BELT_1_SWITCH_MIDDLE 275
+#define EL_CONVEYOR_BELT_1_SWITCH_RIGHT 276
+#define EL_CONVEYOR_BELT_2_LEFT 277
+#define EL_CONVEYOR_BELT_2_MIDDLE 278
+#define EL_CONVEYOR_BELT_2_RIGHT 279
+#define EL_CONVEYOR_BELT_2_SWITCH_LEFT 280
+#define EL_CONVEYOR_BELT_2_SWITCH_MIDDLE 281
+#define EL_CONVEYOR_BELT_2_SWITCH_RIGHT 282
+#define EL_CONVEYOR_BELT_3_LEFT 283
+#define EL_CONVEYOR_BELT_3_MIDDLE 284
+#define EL_CONVEYOR_BELT_3_RIGHT 285
+#define EL_CONVEYOR_BELT_3_SWITCH_LEFT 286
+#define EL_CONVEYOR_BELT_3_SWITCH_MIDDLE 287
+#define EL_CONVEYOR_BELT_3_SWITCH_RIGHT 288
+#define EL_CONVEYOR_BELT_4_LEFT 289
+#define EL_CONVEYOR_BELT_4_MIDDLE 290
+#define EL_CONVEYOR_BELT_4_RIGHT 291
+#define EL_CONVEYOR_BELT_4_SWITCH_LEFT 292
+#define EL_CONVEYOR_BELT_4_SWITCH_MIDDLE 293
+#define EL_CONVEYOR_BELT_4_SWITCH_RIGHT 294
+#define EL_LANDMINE 295
+#define EL_ENVELOPE_OBSOLETE 296 /* obsolete; now EL_ENVELOPE_1 */
+#define EL_LIGHT_SWITCH 297
+#define EL_LIGHT_SWITCH_ACTIVE 298
+#define EL_SIGN_EXCLAMATION 299
+#define EL_SIGN_RADIOACTIVITY 300
+#define EL_SIGN_STOP 301
+#define EL_SIGN_WHEELCHAIR 302
+#define EL_SIGN_PARKING 303
+#define EL_SIGN_ONEWAY 304
+#define EL_SIGN_HEART 305
+#define EL_SIGN_TRIANGLE 306
+#define EL_SIGN_ROUND 307
+#define EL_SIGN_EXIT 308
+#define EL_SIGN_YINYANG 309
+#define EL_SIGN_OTHER 310
+#define EL_MOLE_LEFT 311
+#define EL_MOLE_RIGHT 312
+#define EL_MOLE_UP 313
+#define EL_MOLE_DOWN 314
+#define EL_STEELWALL_SLIPPERY 315
+#define EL_INVISIBLE_SAND 316
+#define EL_DX_UNKNOWN_15 317
+#define EL_DX_UNKNOWN_42 318
+
+#define EL_UNUSED_319 319
+#define EL_UNUSED_320 320
+
+#define EL_SHIELD_DEADLY 321
+#define EL_TIMEGATE_OPEN 322
+#define EL_TIMEGATE_CLOSED 323
+#define EL_TIMEGATE_SWITCH_ACTIVE 324
+#define EL_TIMEGATE_SWITCH 325
+
+#define EL_BALLOON 326
+#define EL_BALLOON_SWITCH_LEFT 327
+#define EL_BALLOON_SWITCH_RIGHT 328
+#define EL_BALLOON_SWITCH_UP 329
+#define EL_BALLOON_SWITCH_DOWN 330
+#define EL_BALLOON_SWITCH_ANY 331
+
+#define EL_EMC_STEELWALL_1 332
+#define EL_EMC_STEELWALL_2 333
+#define EL_EMC_STEELWALL_3 334
+#define EL_EMC_STEELWALL_4 335
+#define EL_EMC_WALL_1 336
+#define EL_EMC_WALL_2 337
+#define EL_EMC_WALL_3 338
+#define EL_EMC_WALL_4 339
+#define EL_EMC_WALL_5 340
+#define EL_EMC_WALL_6 341
+#define EL_EMC_WALL_7 342
+#define EL_EMC_WALL_8 343
+
+#define EL_TUBE_ANY 344
+#define EL_TUBE_VERTICAL 345
+#define EL_TUBE_HORIZONTAL 346
+#define EL_TUBE_VERTICAL_LEFT 347
+#define EL_TUBE_VERTICAL_RIGHT 348
+#define EL_TUBE_HORIZONTAL_UP 349
+#define EL_TUBE_HORIZONTAL_DOWN 350
+#define EL_TUBE_LEFT_UP 351
+#define EL_TUBE_LEFT_DOWN 352
+#define EL_TUBE_RIGHT_UP 353
+#define EL_TUBE_RIGHT_DOWN 354
+#define EL_SPRING 355
+#define EL_TRAP 356
+#define EL_DX_SUPABOMB 357
+
+#define EL_UNUSED_358 358
+#define EL_UNUSED_359 359
+
+/* ---------- begin of custom elements section ----------------------------- */
+#define EL_CUSTOM_START 360
+
+#include "conf_cus.h" /* include auto-generated data structure definitions */
+
+#define NUM_CUSTOM_ELEMENTS 256
+#define EL_CUSTOM_END 615
+/* ---------- end of custom elements section ------------------------------- */
+
+#define EL_EM_KEY_1 616
+#define EL_EM_KEY_2 617
+#define EL_EM_KEY_3 618
+#define EL_EM_KEY_4 619
+#define EL_ENVELOPE_1 620
+#define EL_ENVELOPE_2 621
+#define EL_ENVELOPE_3 622
+#define EL_ENVELOPE_4 623
+
+/* ---------- begin of group elements section ------------------------------ */
+#define EL_GROUP_START 624
+
+#include "conf_grp.h" /* include auto-generated data structure definitions */
+
+#define NUM_GROUP_ELEMENTS 32
+#define EL_GROUP_END 655
+/* ---------- end of custom elements section ------------------------------- */
+
+#define NUM_FILE_ELEMENTS 656