-// BD style elements
-#define EL_BD_EMPTY_SPACE 1253
-#define EL_BD_EMPTY EL_BD_EMPTY_SPACE
-#define EL_BD_SAND 1254
-#define EL_BD_SAND_2 1255
-#define EL_BD_SAND_BALL 1256
-#define EL_BD_SAND_LOOSE 1257
-#define EL_BD_SAND_SLOPED_UP_RIGHT 1258
-#define EL_BD_SAND_SLOPED_UP_LEFT 1259
-#define EL_BD_SAND_SLOPED_DOWN_LEFT 1260
-#define EL_BD_SAND_SLOPED_DOWN_RIGHT 1261
-#define EL_BD_SAND_GLUED 1262
-#define EL_BD_WALL_SLOPED_UP_RIGHT 1263
-#define EL_BD_WALL_SLOPED_UP_LEFT 1264
-#define EL_BD_WALL_SLOPED_DOWN_LEFT 1265
-#define EL_BD_WALL_SLOPED_DOWN_RIGHT 1266
-#define EL_BD_WALL_NON_SLOPED 1267
-#define EL_BD_WALL_DIGGABLE 1268
-#define EL_BD_WALL_DIAMOND 1269
-#define EL_BD_WALL_KEY_1 1270
-#define EL_BD_WALL_KEY_2 1271
-#define EL_BD_WALL_KEY_3 1272
-#define EL_BD_FALLING_WALL 1273
-#define EL_BD_STEELWALL 1274
-#define EL_BD_STEELWALL_SLOPED_UP_RIGHT 1275
-#define EL_BD_STEELWALL_SLOPED_UP_LEFT 1276
-#define EL_BD_STEELWALL_SLOPED_DOWN_LEFT 1277
-#define EL_BD_STEELWALL_SLOPED_DOWN_RIGHT 1278
-#define EL_BD_STEELWALL_EXPLODABLE 1279
-#define EL_BD_STEELWALL_DIGGABLE 1280
-#define EL_BD_EXPANDABLE_WALL_HORIZONTAL 1281
-#define EL_BD_EXPANDABLE_WALL_VERTICAL 1282
-#define EL_BD_EXPANDABLE_WALL_ANY 1283
-#define EL_BD_EXPANDABLE_STEELWALL_HORIZONTAL 1284
-#define EL_BD_EXPANDABLE_STEELWALL_VERTICAL 1285
-#define EL_BD_EXPANDABLE_STEELWALL_ANY 1286
-#define EL_BD_EXPANDABLE_WALL_SWITCH_HORIZONTAL 1287
-#define EL_BD_EXPANDABLE_WALL_SWITCH_VERTICAL 1288
-#define EL_BD_INBOX 1289
-#define EL_BD_EXIT_CLOSED 1290
-#define EL_BD_EXIT_OPEN 1291
-#define EL_BD_INVISIBLE_EXIT_CLOSED 1292
-#define EL_BD_INVISIBLE_EXIT_OPEN 1293
-#define EL_BD_FLYING_ROCK 1294
-#define EL_BD_MEGA_ROCK 1295
-#define EL_BD_ROCK_GLUED 1296
-#define EL_BD_FLYING_DIAMOND 1297
-#define EL_BD_DIAMOND_GLUED 1298
-#define EL_BD_DIAMOND_KEY 1299
-#define EL_BD_TRAPPED_DIAMOND 1300
-#define EL_BD_NUT 1301
-#define EL_BD_AMOEBA_2 1302
-#define EL_BD_BLADDER 1303
-#define EL_BD_BLADDER_SPENDER 1304
-#define EL_BD_CREATURE_SWITCH 1305
-#define EL_BD_CREATURE_SWITCH_ACTIVE 1306
-#define EL_BD_BITER_SWITCH_1 1307
-#define EL_BD_BITER_SWITCH_2 1308
-#define EL_BD_BITER_SWITCH_3 1309
-#define EL_BD_BITER_SWITCH_4 1310
-#define EL_BD_REPLICATOR 1311
-#define EL_BD_REPLICATOR_ACTIVE 1312
-#define EL_BD_REPLICATOR_SWITCH 1313
-#define EL_BD_REPLICATOR_SWITCH_ACTIVE 1314
-#define EL_BD_CONVEYOR_LEFT 1315
-#define EL_BD_CONVEYOR_LEFT_ACTIVE 1316
-#define EL_BD_CONVEYOR_RIGHT 1317
-#define EL_BD_CONVEYOR_RIGHT_ACTIVE 1318
-#define EL_BD_CONVEYOR_SWITCH 1319
-#define EL_BD_CONVEYOR_SWITCH_ACTIVE 1320
-#define EL_BD_CONVEYOR_DIR_SWITCH_LEFT 1321
-#define EL_BD_CONVEYOR_DIR_SWITCH_RIGHT 1322
-#define EL_BD_GRAVITY_SWITCH 1323
-#define EL_BD_GRAVITY_SWITCH_ACTIVE 1324
-#define EL_BD_ACID 1325
-#define EL_BD_BOX 1326
-#define EL_BD_TIME_PENALTY 1327
-#define EL_BD_GRAVESTONE 1328
-#define EL_BD_CLOCK 1329
-#define EL_BD_POT 1330
-#define EL_BD_PNEUMATIC_HAMMER 1331
-#define EL_BD_TELEPORTER 1332
-#define EL_BD_SKELETON 1333
-#define EL_BD_WATER 1334
-#define EL_BD_KEY_1 1335
-#define EL_BD_KEY_2 1336
-#define EL_BD_KEY_3 1337
-#define EL_BD_GATE_1 1338
-#define EL_BD_GATE_2 1339
-#define EL_BD_GATE_3 1340
-#define EL_BD_LAVA 1341
-#define EL_BD_SWEET 1342
-#define EL_BD_VOODOO_DOLL 1343
-#define EL_BD_SLIME 1344
-#define EL_BD_WAITING_ROCK 1345
-#define EL_BD_CHASING_ROCK 1346
-#define EL_BD_GHOST 1347
-#define EL_BD_COW 1348
-#define EL_BD_COW_LEFT 1349
-#define EL_BD_COW_UP 1350
-#define EL_BD_COW_RIGHT 1351
-#define EL_BD_COW_DOWN 1352
-#define EL_BD_BUTTERFLY_2 1353
-#define EL_BD_BUTTERFLY_2_RIGHT 1354
-#define EL_BD_BUTTERFLY_2_UP 1355
-#define EL_BD_BUTTERFLY_2_LEFT 1356
-#define EL_BD_BUTTERFLY_2_DOWN 1357
-#define EL_BD_FIREFLY_2 1358
-#define EL_BD_FIREFLY_2_RIGHT 1359
-#define EL_BD_FIREFLY_2_UP 1360
-#define EL_BD_FIREFLY_2_LEFT 1361
-#define EL_BD_FIREFLY_2_DOWN 1362
-#define EL_BD_STONEFLY 1363
-#define EL_BD_STONEFLY_RIGHT 1364
-#define EL_BD_STONEFLY_UP 1365
-#define EL_BD_STONEFLY_LEFT 1366
-#define EL_BD_STONEFLY_DOWN 1367
-#define EL_BD_BITER 1368
-#define EL_BD_BITER_RIGHT 1369
-#define EL_BD_BITER_UP 1370
-#define EL_BD_BITER_LEFT 1371
-#define EL_BD_BITER_DOWN 1372
-#define EL_BD_DRAGONFLY 1373
-#define EL_BD_DRAGONFLY_RIGHT 1374
-#define EL_BD_DRAGONFLY_UP 1375
-#define EL_BD_DRAGONFLY_LEFT 1376
-#define EL_BD_DRAGONFLY_DOWN 1377
-#define EL_BD_BOMB 1378
-#define EL_BD_NITRO_PACK 1379
-#define EL_BD_PLAYER 1380
-#define EL_BD_PLAYER_WITH_BOMB 1381
-#define EL_BD_PLAYER_GLUED 1382
-#define EL_BD_PLAYER_STIRRING 1383
-#define EL_BD_FAKE_BONUS 1384
-#define EL_BD_COVERED 1385
-
-#define NUM_FILE_ELEMENTS 1386
+// BD style elements (normal)
+#define EL_BDX_START 1253
+#define EL_BDX_EMPTY_SPACE EL_BDX_START
+#define EL_BDX_EMPTY EL_BDX_EMPTY_SPACE
+#define EL_BDX_SAND_1 1254
+#define EL_BDX_SAND_2 1255
+#define EL_BDX_SAND_BALL 1256
+#define EL_BDX_SAND_LOOSE 1257
+#define EL_BDX_SAND_SLOPED_UP_RIGHT 1258
+#define EL_BDX_SAND_SLOPED_UP_LEFT 1259
+#define EL_BDX_SAND_SLOPED_DOWN_LEFT 1260
+#define EL_BDX_SAND_SLOPED_DOWN_RIGHT 1261
+#define EL_BDX_SAND_GLUED 1262
+#define EL_BDX_WALL_SLOPED_UP_RIGHT 1263
+#define EL_BDX_WALL_SLOPED_UP_LEFT 1264
+#define EL_BDX_WALL_SLOPED_DOWN_LEFT 1265
+#define EL_BDX_WALL_SLOPED_DOWN_RIGHT 1266
+#define EL_BDX_WALL_NON_SLOPED 1267
+#define EL_BDX_WALL_DIGGABLE 1268
+#define EL_BDX_WALL_DIAMOND 1269
+#define EL_BDX_WALL_KEY_1 1270
+#define EL_BDX_WALL_KEY_2 1271
+#define EL_BDX_WALL_KEY_3 1272
+#define EL_BDX_FALLING_WALL 1273
+#define EL_BDX_STEELWALL 1274
+#define EL_BDX_STEELWALL_SLOPED_UP_RIGHT 1275
+#define EL_BDX_STEELWALL_SLOPED_UP_LEFT 1276
+#define EL_BDX_STEELWALL_SLOPED_DOWN_LEFT 1277
+#define EL_BDX_STEELWALL_SLOPED_DOWN_RIGHT 1278
+#define EL_BDX_STEELWALL_EXPLODABLE 1279
+#define EL_BDX_STEELWALL_DIGGABLE 1280
+#define EL_BDX_EXPANDABLE_WALL_HORIZONTAL 1281
+#define EL_BDX_EXPANDABLE_WALL_VERTICAL 1282
+#define EL_BDX_EXPANDABLE_WALL_ANY 1283
+#define EL_BDX_EXPANDABLE_STEELWALL_HORIZONTAL 1284
+#define EL_BDX_EXPANDABLE_STEELWALL_VERTICAL 1285
+#define EL_BDX_EXPANDABLE_STEELWALL_ANY 1286
+#define EL_BDX_EXPANDABLE_WALL_SWITCH 1287
+#define EL_BDX_EXPANDABLE_WALL_SWITCH_ACTIVE 1288
+#define EL_BDX_INBOX 1289
+#define EL_BDX_EXIT_CLOSED 1290
+#define EL_BDX_EXIT_OPEN 1291
+#define EL_BDX_INVISIBLE_EXIT_CLOSED 1292
+#define EL_BDX_INVISIBLE_EXIT_OPEN 1293
+#define EL_BDX_FLYING_ROCK 1294
+#define EL_BDX_MEGA_ROCK 1295
+#define EL_BDX_ROCK_GLUED 1296
+#define EL_BDX_FLYING_DIAMOND 1297
+#define EL_BDX_DIAMOND_GLUED 1298
+#define EL_BDX_DIAMOND_KEY 1299
+#define EL_BDX_TRAPPED_DIAMOND 1300
+#define EL_BDX_NUT 1301
+#define EL_BDX_AMOEBA_1 1302
+#define EL_BDX_AMOEBA_2 1303
+#define EL_BDX_BLADDER 1304
+#define EL_BDX_BLADDER_SPENDER 1305
+#define EL_BDX_CREATURE_SWITCH 1306
+#define EL_BDX_CREATURE_SWITCH_ACTIVE 1307
+#define EL_BDX_BITER_SWITCH_1 1308
+#define EL_BDX_BITER_SWITCH_2 1309
+#define EL_BDX_BITER_SWITCH_3 1310
+#define EL_BDX_BITER_SWITCH_4 1311
+#define EL_BDX_REPLICATOR 1312
+#define EL_BDX_REPLICATOR_ACTIVE 1313
+#define EL_BDX_REPLICATOR_SWITCH 1314
+#define EL_BDX_REPLICATOR_SWITCH_ACTIVE 1315
+#define EL_BDX_CONVEYOR_LEFT 1316
+#define EL_BDX_CONVEYOR_LEFT_ACTIVE 1317
+#define EL_BDX_CONVEYOR_RIGHT 1318
+#define EL_BDX_CONVEYOR_RIGHT_ACTIVE 1319
+#define EL_BDX_CONVEYOR_SWITCH 1320
+#define EL_BDX_CONVEYOR_SWITCH_ACTIVE 1321
+#define EL_BDX_CONVEYOR_DIR_SWITCH 1322
+#define EL_BDX_CONVEYOR_DIR_SWITCH_ACTIVE 1323
+#define EL_BDX_GRAVITY_SWITCH 1324
+#define EL_BDX_GRAVITY_SWITCH_ACTIVE 1325
+#define EL_BDX_ACID 1326
+#define EL_BDX_BOX 1327
+#define EL_BDX_TIME_PENALTY 1328
+#define EL_BDX_GRAVESTONE 1329
+#define EL_BDX_CLOCK 1330
+#define EL_BDX_POT 1331
+#define EL_BDX_PNEUMATIC_HAMMER 1332
+#define EL_BDX_TELEPORTER 1333
+#define EL_BDX_SKELETON 1334
+#define EL_BDX_WATER 1335
+#define EL_BDX_KEY_1 1336
+#define EL_BDX_KEY_2 1337
+#define EL_BDX_KEY_3 1338
+#define EL_BDX_GATE_1 1339
+#define EL_BDX_GATE_2 1340
+#define EL_BDX_GATE_3 1341
+#define EL_BDX_LAVA 1342
+#define EL_BDX_SWEET 1343
+#define EL_BDX_VOODOO_DOLL 1344
+#define EL_BDX_SLIME 1345
+#define EL_BDX_WAITING_ROCK 1346
+#define EL_BDX_CHASING_ROCK 1347
+#define EL_BDX_GHOST 1348
+#define EL_BDX_COW 1349
+#define EL_BDX_COW_LEFT 1350
+#define EL_BDX_COW_UP 1351
+#define EL_BDX_COW_RIGHT 1352
+#define EL_BDX_COW_DOWN 1353
+#define EL_BDX_BUTTERFLY_1 1354
+#define EL_BDX_BUTTERFLY_1_RIGHT 1355
+#define EL_BDX_BUTTERFLY_1_UP 1356
+#define EL_BDX_BUTTERFLY_1_LEFT 1357
+#define EL_BDX_BUTTERFLY_1_DOWN 1358
+#define EL_BDX_BUTTERFLY_2 1359
+#define EL_BDX_BUTTERFLY_2_RIGHT 1360
+#define EL_BDX_BUTTERFLY_2_UP 1361
+#define EL_BDX_BUTTERFLY_2_LEFT 1362
+#define EL_BDX_BUTTERFLY_2_DOWN 1363
+#define EL_BDX_FIREFLY_1 1364
+#define EL_BDX_FIREFLY_1_RIGHT 1365
+#define EL_BDX_FIREFLY_1_UP 1366
+#define EL_BDX_FIREFLY_1_LEFT 1367
+#define EL_BDX_FIREFLY_1_DOWN 1368
+#define EL_BDX_FIREFLY_2 1369
+#define EL_BDX_FIREFLY_2_RIGHT 1370
+#define EL_BDX_FIREFLY_2_UP 1371
+#define EL_BDX_FIREFLY_2_LEFT 1372
+#define EL_BDX_FIREFLY_2_DOWN 1373
+#define EL_BDX_STONEFLY 1374
+#define EL_BDX_STONEFLY_RIGHT 1375
+#define EL_BDX_STONEFLY_UP 1376
+#define EL_BDX_STONEFLY_LEFT 1377
+#define EL_BDX_STONEFLY_DOWN 1378
+#define EL_BDX_BITER 1379
+#define EL_BDX_BITER_RIGHT 1380
+#define EL_BDX_BITER_UP 1381
+#define EL_BDX_BITER_LEFT 1382
+#define EL_BDX_BITER_DOWN 1383
+#define EL_BDX_DRAGONFLY 1384
+#define EL_BDX_DRAGONFLY_RIGHT 1385
+#define EL_BDX_DRAGONFLY_UP 1386
+#define EL_BDX_DRAGONFLY_LEFT 1387
+#define EL_BDX_DRAGONFLY_DOWN 1388
+#define EL_BDX_BOMB 1389
+#define EL_BDX_NITRO_PACK 1390
+#define EL_BDX_PLAYER 1391
+#define EL_BDX_PLAYER_WITH_BOMB 1392
+#define EL_BDX_PLAYER_WITH_ROCKET_LAUNCHER 1393
+#define EL_BDX_PLAYER_GLUED 1394
+#define EL_BDX_PLAYER_STIRRING 1395
+#define EL_BDX_ROCKET_LAUNCHER 1396
+#define EL_BDX_ROCKET 1397
+#define EL_BDX_ROCKET_RIGHT 1398
+#define EL_BDX_ROCKET_UP 1399
+#define EL_BDX_ROCKET_LEFT 1400
+#define EL_BDX_ROCKET_DOWN 1401
+#define EL_BDX_FAKE_BONUS 1402
+#define EL_BDX_COVERED 1403
+#define EL_BDX_WALL 1404
+#define EL_BDX_ROCK 1405
+#define EL_BDX_DIAMOND 1406
+#define EL_BDX_MAGIC_WALL 1407
+
+// BD style elements ("effects"; mostly runtime elements, but can also be stored in level file)
+#define EL_BDX_RUNTIME_START 1408
+#define EL_BDX_SAND_BALL_FALLING EL_BDX_RUNTIME_START
+#define EL_BDX_SAND_LOOSE_FALLING 1409
+#define EL_BDX_ROCK_FALLING 1410
+#define EL_BDX_FLYING_ROCK_FLYING 1411
+#define EL_BDX_MEGA_ROCK_FALLING 1412
+#define EL_BDX_DIAMOND_FALLING 1413
+#define EL_BDX_FLYING_DIAMOND_FLYING 1414
+#define EL_BDX_NUT_FALLING 1415
+#define EL_BDX_FALLING_WALL_FALLING 1416
+#define EL_BDX_NITRO_PACK_FALLING 1417
+#define EL_BDX_WATER_1 1418
+#define EL_BDX_WATER_2 1419
+#define EL_BDX_WATER_3 1420
+#define EL_BDX_WATER_4 1421
+#define EL_BDX_WATER_5 1422
+#define EL_BDX_WATER_6 1423
+#define EL_BDX_WATER_7 1424
+#define EL_BDX_WATER_8 1425
+#define EL_BDX_WATER_9 1426
+#define EL_BDX_WATER_10 1427
+#define EL_BDX_WATER_11 1428
+#define EL_BDX_WATER_12 1429
+#define EL_BDX_WATER_13 1430
+#define EL_BDX_WATER_14 1431
+#define EL_BDX_WATER_15 1432
+#define EL_BDX_WATER_16 1433
+#define EL_BDX_COW_ENCLOSED_1 1434
+#define EL_BDX_COW_ENCLOSED_2 1435
+#define EL_BDX_COW_ENCLOSED_3 1436
+#define EL_BDX_COW_ENCLOSED_4 1437
+#define EL_BDX_COW_ENCLOSED_5 1438
+#define EL_BDX_COW_ENCLOSED_6 1439
+#define EL_BDX_COW_ENCLOSED_7 1440
+#define EL_BDX_BLADDER_1 1441
+#define EL_BDX_BLADDER_2 1442
+#define EL_BDX_BLADDER_3 1443
+#define EL_BDX_BLADDER_4 1444
+#define EL_BDX_BLADDER_5 1445
+#define EL_BDX_BLADDER_6 1446
+#define EL_BDX_BLADDER_7 1447
+#define EL_BDX_BLADDER_8 1448
+#define EL_BDX_PLAYER_GROWING_1 1449
+#define EL_BDX_PLAYER_GROWING_2 1450
+#define EL_BDX_PLAYER_GROWING_3 1451
+#define EL_BDX_BOMB_TICKING_1 1452
+#define EL_BDX_BOMB_TICKING_2 1453
+#define EL_BDX_BOMB_TICKING_3 1454
+#define EL_BDX_BOMB_TICKING_4 1455
+#define EL_BDX_BOMB_TICKING_5 1456
+#define EL_BDX_BOMB_TICKING_6 1457
+#define EL_BDX_BOMB_TICKING_7 1458
+#define EL_BDX_CLOCK_GROWING_1 1459
+#define EL_BDX_CLOCK_GROWING_2 1460
+#define EL_BDX_CLOCK_GROWING_3 1461
+#define EL_BDX_CLOCK_GROWING_4 1462
+#define EL_BDX_DIAMOND_GROWING_1 1463
+#define EL_BDX_DIAMOND_GROWING_2 1464
+#define EL_BDX_DIAMOND_GROWING_3 1465
+#define EL_BDX_DIAMOND_GROWING_4 1466
+#define EL_BDX_DIAMOND_GROWING_5 1467
+#define EL_BDX_EXPLODING_1 1468
+#define EL_BDX_EXPLODING_2 1469
+#define EL_BDX_EXPLODING_3 1470
+#define EL_BDX_EXPLODING_4 1471
+#define EL_BDX_EXPLODING_5 1472
+#define EL_BDX_ROCK_GROWING_1 1473
+#define EL_BDX_ROCK_GROWING_2 1474
+#define EL_BDX_ROCK_GROWING_3 1475
+#define EL_BDX_ROCK_GROWING_4 1476
+#define EL_BDX_STEELWALL_GROWING_1 1477
+#define EL_BDX_STEELWALL_GROWING_2 1478
+#define EL_BDX_STEELWALL_GROWING_3 1479
+#define EL_BDX_STEELWALL_GROWING_4 1480
+#define EL_BDX_GHOST_EXPLODING_1 1481
+#define EL_BDX_GHOST_EXPLODING_2 1482
+#define EL_BDX_GHOST_EXPLODING_3 1483
+#define EL_BDX_GHOST_EXPLODING_4 1484
+#define EL_BDX_BOMB_EXPLODING_1 1485
+#define EL_BDX_BOMB_EXPLODING_2 1486
+#define EL_BDX_BOMB_EXPLODING_3 1487
+#define EL_BDX_BOMB_EXPLODING_4 1488
+#define EL_BDX_NITRO_PACK_EXPLODING 1489
+#define EL_BDX_NITRO_PACK_EXPLODING_1 1490
+#define EL_BDX_NITRO_PACK_EXPLODING_2 1491
+#define EL_BDX_NITRO_PACK_EXPLODING_3 1492
+#define EL_BDX_NITRO_PACK_EXPLODING_4 1493
+#define EL_BDX_AMOEBA_2_EXPLODING_1 1494
+#define EL_BDX_AMOEBA_2_EXPLODING_2 1495
+#define EL_BDX_AMOEBA_2_EXPLODING_3 1496
+#define EL_BDX_AMOEBA_2_EXPLODING_4 1497
+#define EL_BDX_NUT_BREAKING_1 1498
+#define EL_BDX_NUT_BREAKING_2 1499
+#define EL_BDX_NUT_BREAKING_3 1500
+#define EL_BDX_NUT_BREAKING_4 1501
+#define EL_BDX_RUNTIME_END EL_BDX_NUT_BREAKING_4
+#define EL_BDX_END EL_BDX_RUNTIME_END
+
+#define NUM_FILE_ELEMENTS 1502