mods/default/mapgen.lua

   1 --
   2 -- Aliases for map generator outputs
   3 --
   4
   5 minetest.register_alias("mapgen_stone", "default:stone")
   6 minetest.register_alias("mapgen_dirt", "default:dirt")
   7 minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
   8 minetest.register_alias("mapgen_sand", "default:sand")
   9 minetest.register_alias("mapgen_water_source", "default:water_source")
  10 minetest.register_alias("mapgen_river_water_source", "default:river_water_source")
  11 minetest.register_alias("mapgen_lava_source", "default:lava_source")
  12 minetest.register_alias("mapgen_gravel", "default:gravel")
  13 minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
  14 minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
  15 minetest.register_alias("mapgen_dirt_with_snow", "default:dirt_with_snow")
  16 minetest.register_alias("mapgen_snowblock", "default:snowblock")
  17 minetest.register_alias("mapgen_snow", "default:snow")
  18 minetest.register_alias("mapgen_ice", "default:ice")
  19 minetest.register_alias("mapgen_sandstone", "default:sandstone")
  20
  21 -- Flora
  22
  23 minetest.register_alias("mapgen_tree", "default:tree")
  24 minetest.register_alias("mapgen_leaves", "default:leaves")
  25 minetest.register_alias("mapgen_apple", "default:apple")
  26 minetest.register_alias("mapgen_jungletree", "default:jungletree")
  27 minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
  28 minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
  29 minetest.register_alias("mapgen_pine_tree", "default:pine_tree")
  30 minetest.register_alias("mapgen_pine_needles", "default:pine_needles")
  31
  32 -- Dungeons
  33
  34 minetest.register_alias("mapgen_cobble", "default:cobble")
  35 minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
  36 minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
  37 minetest.register_alias("mapgen_stair_desert_stone", "stairs:stair_desert_stone")
  38 minetest.register_alias("mapgen_sandstonebrick", "default:sandstonebrick")
  39 minetest.register_alias("mapgen_stair_sandstonebrick", "stairs:stair_sandstonebrick")
  40
  41
  42 --
  43 -- Register ores
  44 --
  45
  46 function default.register_ores()
  47         minetest.clear_registered_ores()
  48         -- Blob ores
  49         -- These first to avoid other ores in blobs
  50
  51         -- Clay
  52         -- This first to avoid clay in sand blobs
  53
  54         minetest.register_ore({
  55                 ore_type        = "blob",
  56                 ore             = "default:clay",
  57                 wherein         = {"default:sand"},
  58                 clust_scarcity  = 16 * 16 * 16,
  59                 clust_size      = 5,
  60                 y_min           = -15,
  61                 y_max           = 0,
  62                 noise_threshold = 0.0,
  63                 noise_params    = {
  64                         offset = 0.5,
  65                         scale = 0.2,
  66                         spread = {x = 5, y = 5, z = 5},
  67                         seed = -316,
  68                         octaves = 1,
  69                         persist = 0.0
  70                 },
  71         })
  72
  73         -- Sand
  74
  75         minetest.register_ore({
  76                 ore_type        = "blob",
  77                 ore             = "default:sand",
  78                 wherein         = {"default:stone", "default:sandstone",
  79                         "default:desert_stone"},
  80                 clust_scarcity  = 16 * 16 * 16,
  81                 clust_size      = 5,
  82                 y_min           = -31,
  83                 y_max           = 0,
  84                 noise_threshold = 0.0,
  85                 noise_params    = {
  86                         offset = 0.5,
  87                         scale = 0.2,
  88                         spread = {x = 5, y = 5, z = 5},
  89                         seed = 2316,
  90                         octaves = 1,
  91                         persist = 0.0
  92                 },
  93         })
  94
  95         -- Dirt
  96
  97         minetest.register_ore({
  98                 ore_type        = "blob",
  99                 ore             = "default:dirt",
 100                 wherein         = {"default:stone"},
 101                 clust_scarcity  = 16 * 16 * 16,
 102                 clust_size      = 5,
 103                 y_min           = -31,
 104                 y_max           = 31000,
 105                 noise_threshold = 0.0,
 106                 noise_params    = {
 107                         offset = 0.5,
 108                         scale = 0.2,
 109                         spread = {x = 5, y = 5, z = 5},
 110                         seed = 17676,
 111                         octaves = 1,
 112                         persist = 0.0
 113                 },
 114                 biomes = {"taiga", "snowy_grassland", "grassland", "coniferous_forest",
 115                         "deciduous_forest", "savanna", "rainforest"}
 116         })
 117
 118         -- Gravel
 119
 120         minetest.register_ore({
 121                 ore_type        = "blob",
 122                 ore             = "default:gravel",
 123                 wherein         = {"default:stone"},
 124                 clust_scarcity  = 16 * 16 * 16,
 125                 clust_size      = 5,
 126                 y_min           = -31000,
 127                 y_max           = 31000,
 128                 noise_threshold = 0.0,
 129                 noise_params    = {
 130                         offset = 0.5,
 131                         scale = 0.2,
 132                         spread = {x = 5, y = 5, z = 5},
 133                         seed = 766,
 134                         octaves = 1,
 135                         persist = 0.0
 136                 },
 137         })
 138
 139         -- Scatter ores
 140
 141         -- Coal
 142
 143         minetest.register_ore({
 144                 ore_type       = "scatter",
 145                 ore            = "default:stone_with_coal",
 146                 wherein        = "default:stone",
 147                 clust_scarcity = 8 * 8 * 8,
 148                 clust_num_ores = 9,
 149                 clust_size     = 3,
 150                 y_min          = 1025,
 151                 y_max          = 31000,
 152         })
 153
 154         minetest.register_ore({
 155                 ore_type       = "scatter",
 156                 ore            = "default:stone_with_coal",
 157                 wherein        = "default:stone",
 158                 clust_scarcity = 8 * 8 * 8,
 159                 clust_num_ores = 8,
 160                 clust_size     = 3,
 161                 y_min          = -31000,
 162                 y_max          = 64,
 163         })
 164
 165         minetest.register_ore({
 166                 ore_type       = "scatter",
 167                 ore            = "default:stone_with_coal",
 168                 wherein        = "default:stone",
 169                 clust_scarcity = 24 * 24 * 24,
 170                 clust_num_ores = 27,
 171                 clust_size     = 6,
 172                 y_min          = -31000,
 173                 y_max          = 0,
 174         })
 175
 176         -- Iron
 177
 178         minetest.register_ore({
 179                 ore_type       = "scatter",
 180                 ore            = "default:stone_with_iron",
 181                 wherein        = "default:stone",
 182                 clust_scarcity = 9 * 9 * 9,
 183                 clust_num_ores = 12,
 184                 clust_size     = 3,
 185                 y_min          = 1025,
 186                 y_max          = 31000,
 187         })
 188
 189         minetest.register_ore({
 190                 ore_type       = "scatter",
 191                 ore            = "default:stone_with_iron",
 192                 wherein        = "default:stone",
 193                 clust_scarcity = 7 * 7 * 7,
 194                 clust_num_ores = 5,
 195                 clust_size     = 3,
 196                 y_min          = -31000,
 197                 y_max          = 0,
 198         })
 199
 200         minetest.register_ore({
 201                 ore_type       = "scatter",
 202                 ore            = "default:stone_with_iron",
 203                 wherein        = "default:stone",
 204                 clust_scarcity = 24 * 24 * 24,
 205                 clust_num_ores = 27,
 206                 clust_size     = 6,
 207                 y_min          = -31000,
 208                 y_max          = -64,
 209         })
 210
 211         -- Copper
 212
 213         minetest.register_ore({
 214                 ore_type       = "scatter",
 215                 ore            = "default:stone_with_copper",
 216                 wherein        = "default:stone",
 217                 clust_scarcity = 9 * 9 * 9,
 218                 clust_num_ores = 5,
 219                 clust_size     = 3,
 220                 y_min          = 1025,
 221                 y_max          = 31000,
 222         })
 223
 224         minetest.register_ore({
 225                 ore_type       = "scatter",
 226                 ore            = "default:stone_with_copper",
 227                 wherein        = "default:stone",
 228                 clust_scarcity = 12 * 12 * 12,
 229                 clust_num_ores = 4,
 230                 clust_size     = 3,
 231                 y_min          = -63,
 232                 y_max          = -16,
 233         })
 234
 235         minetest.register_ore({
 236                 ore_type       = "scatter",
 237                 ore            = "default:stone_with_copper",
 238                 wherein        = "default:stone",
 239                 clust_scarcity = 9 * 9 * 9,
 240                 clust_num_ores = 5,
 241                 clust_size     = 3,
 242                 y_min          = -31000,
 243                 y_max          = -64,
 244         })
 245
 246         -- Gold
 247
 248         minetest.register_ore({
 249                 ore_type       = "scatter",
 250                 ore            = "default:stone_with_gold",
 251                 wherein        = "default:stone",
 252                 clust_scarcity = 13 * 13 * 13,
 253                 clust_num_ores = 5,
 254                 clust_size     = 3,
 255                 y_min          = 1025,
 256                 y_max          = 31000,
 257         })
 258
 259         minetest.register_ore({
 260                 ore_type       = "scatter",
 261                 ore            = "default:stone_with_gold",
 262                 wherein        = "default:stone",
 263                 clust_scarcity = 15 * 15 * 15,
 264                 clust_num_ores = 3,
 265                 clust_size     = 2,
 266                 y_min          = -255,
 267                 y_max          = -64,
 268         })
 269
 270         minetest.register_ore({
 271                 ore_type       = "scatter",
 272                 ore            = "default:stone_with_gold",
 273                 wherein        = "default:stone",
 274                 clust_scarcity = 13 * 13 * 13,
 275                 clust_num_ores = 5,
 276                 clust_size     = 3,
 277                 y_min          = -31000,
 278                 y_max          = -256,
 279         })
 280
 281         -- Mese crystal
 282
 283         minetest.register_ore({
 284                 ore_type       = "scatter",
 285                 ore            = "default:stone_with_mese",
 286                 wherein        = "default:stone",
 287                 clust_scarcity = 14 * 14 * 14,
 288                 clust_num_ores = 5,
 289                 clust_size     = 3,
 290                 y_min          = 1025,
 291                 y_max          = 31000,
 292         })
 293
 294         minetest.register_ore({
 295                 ore_type       = "scatter",
 296                 ore            = "default:stone_with_mese",
 297                 wherein        = "default:stone",
 298                 clust_scarcity = 18 * 18 * 18,
 299                 clust_num_ores = 3,
 300                 clust_size     = 2,
 301                 y_min          = -255,
 302                 y_max          = -64,
 303         })
 304
 305         minetest.register_ore({
 306                 ore_type       = "scatter",
 307                 ore            = "default:stone_with_mese",
 308                 wherein        = "default:stone",
 309                 clust_scarcity = 14 * 14 * 14,
 310                 clust_num_ores = 5,
 311                 clust_size     = 3,
 312                 y_min          = -31000,
 313                 y_max          = -256,
 314         })
 315
 316         -- Diamond
 317
 318         minetest.register_ore({
 319                 ore_type       = "scatter",
 320                 ore            = "default:stone_with_diamond",
 321                 wherein        = "default:stone",
 322                 clust_scarcity = 15 * 15 * 15,
 323                 clust_num_ores = 4,
 324                 clust_size     = 3,
 325                 y_min          = 1025,
 326                 y_max          = 31000,
 327         })
 328
 329         minetest.register_ore({
 330                 ore_type       = "scatter",
 331                 ore            = "default:stone_with_diamond",
 332                 wherein        = "default:stone",
 333                 clust_scarcity = 17 * 17 * 17,
 334                 clust_num_ores = 4,
 335                 clust_size     = 3,
 336                 y_min          = -255,
 337                 y_max          = -128,
 338         })
 339
 340         minetest.register_ore({
 341                 ore_type       = "scatter",
 342                 ore            = "default:stone_with_diamond",
 343                 wherein        = "default:stone",
 344                 clust_scarcity = 15 * 15 * 15,
 345                 clust_num_ores = 4,
 346                 clust_size     = 3,
 347                 y_min          = -31000,
 348                 y_max          = -256,
 349         })
 350
 351         -- Mese block
 352
 353         minetest.register_ore({
 354                 ore_type       = "scatter",
 355                 ore            = "default:mese",
 356                 wherein        = "default:stone",
 357                 clust_scarcity = 36 * 36 * 36,
 358                 clust_num_ores = 3,
 359                 clust_size     = 2,
 360                 y_min          = 1025,
 361                 y_max          = 31000,
 362         })
 363
 364         minetest.register_ore({
 365                 ore_type       = "scatter",
 366                 ore            = "default:mese",
 367                 wherein        = "default:stone",
 368                 clust_scarcity = 36 * 36 * 36,
 369                 clust_num_ores = 3,
 370                 clust_size     = 2,
 371                 y_min          = -31000,
 372                 y_max          = -1024,
 373         })
 374 end
 375
 376
 377 --
 378 -- Register biomes
 379 --
 380
 381 -- All mapgens except mgv6 and singlenode
 382
 383 function default.register_biomes()
 384         minetest.clear_registered_biomes()
 385
 386         -- Icesheet
 387
 388         minetest.register_biome({
 389                 name = "icesheet",
 390                 node_dust = "default:snowblock",
 391                 node_top = "default:snowblock",
 392                 depth_top = 1,
 393                 node_filler = "default:snowblock",
 394                 depth_filler = 3,
 395                 node_stone = "default:ice",
 396                 node_water_top = "default:ice",
 397                 depth_water_top = 10,
 398                 --node_water = "",
 399                 node_river_water = "default:ice",
 400                 node_riverbed = "default:gravel",
 401                 depth_riverbed = 2,
 402                 y_min = -8,
 403                 y_max = 31000,
 404                 heat_point = 0,
 405                 humidity_point = 73,
 406         })
 407
 408         minetest.register_biome({
 409                 name = "icesheet_ocean",
 410                 node_dust = "default:snowblock",
 411                 node_top = "default:sand",
 412                 depth_top = 1,
 413                 node_filler = "default:sand",
 414                 depth_filler = 3,
 415                 --node_stone = "",
 416                 node_water_top = "default:ice",
 417                 depth_water_top = 10,
 418                 --node_water = "",
 419                 --node_river_water = "",
 420                 y_min = -112,
 421                 y_max = -9,
 422                 heat_point = 0,
 423                 humidity_point = 73,
 424         })
 425
 426         -- Tundra
 427
 428         minetest.register_biome({
 429                 name = "tundra",
 430                 node_dust = "default:snowblock",
 431                 --node_top = ,
 432                 --depth_top = ,
 433                 --node_filler = ,
 434                 --depth_filler = ,
 435                 --node_stone = "",
 436                 --node_water_top = "",
 437                 --depth_water_top = ,
 438                 --node_water = "",
 439                 --node_river_water = "",
 440                 node_riverbed = "default:gravel",
 441                 depth_riverbed = 2,
 442                 y_min = 2,
 443                 y_max = 31000,
 444                 heat_point = 0,
 445                 humidity_point = 40,
 446         })
 447
 448         minetest.register_biome({
 449                 name = "tundra_beach",
 450                 --node_dust = "",
 451                 node_top = "default:gravel",
 452                 depth_top = 1,
 453                 node_filler = "default:gravel",
 454                 depth_filler = 2,
 455                 --node_stone = "",
 456                 --node_water_top = "",
 457                 --depth_water_top = ,
 458                 --node_water = "",
 459                 --node_river_water = "",
 460                 node_riverbed = "default:gravel",
 461                 depth_riverbed = 2,
 462                 y_min = -3,
 463                 y_max = 1,
 464                 heat_point = 0,
 465                 humidity_point = 40,
 466         })
 467
 468         minetest.register_biome({
 469                 name = "tundra_ocean",
 470                 --node_dust = "",
 471                 node_top = "default:sand",
 472                 depth_top = 1,
 473                 node_filler = "default:sand",
 474                 depth_filler = 3,
 475                 --node_stone = "",
 476                 --node_water_top = "",
 477                 --depth_water_top = ,
 478                 --node_water = "",
 479                 --node_river_water = "",
 480                 node_riverbed = "default:gravel",
 481                 depth_riverbed = 2,
 482                 y_min = -112,
 483                 y_max = -4,
 484                 heat_point = 0,
 485                 humidity_point = 40,
 486         })
 487
 488         -- Taiga
 489
 490         minetest.register_biome({
 491                 name = "taiga",
 492                 node_dust = "default:snow",
 493                 node_top = "default:dirt_with_snow",
 494                 depth_top = 1,
 495                 node_filler = "default:dirt",
 496                 depth_filler = 3,
 497                 --node_stone = "",
 498                 --node_water_top = "",
 499                 --depth_water_top = ,
 500                 --node_water = "",
 501                 --node_river_water = "",
 502                 node_riverbed = "default:sand",
 503                 depth_riverbed = 2,
 504                 y_min = 2,
 505                 y_max = 31000,
 506                 heat_point = 25,
 507                 humidity_point = 70,
 508         })
 509
 510         minetest.register_biome({
 511                 name = "taiga_ocean",
 512                 --node_dust = "",
 513                 node_top = "default:sand",
 514                 depth_top = 1,
 515                 node_filler = "default:sand",
 516                 depth_filler = 3,
 517                 --node_stone = "",
 518                 --node_water_top = "",
 519                 --depth_water_top = ,
 520                 --node_water = "",
 521                 --node_river_water = "",
 522                 node_riverbed = "default:sand",
 523                 depth_riverbed = 2,
 524                 y_min = -112,
 525                 y_max = 1,
 526                 heat_point = 25,
 527                 humidity_point = 70,
 528         })
 529
 530         -- Snowy grassland
 531
 532         minetest.register_biome({
 533                 name = "snowy_grassland",
 534                 node_dust = "default:snow",
 535                 node_top = "default:dirt_with_snow",
 536                 depth_top = 1,
 537                 node_filler = "default:dirt",
 538                 depth_filler = 1,
 539                 --node_stone = "",
 540                 --node_water_top = "",
 541                 --depth_water_top = ,
 542                 --node_water = "",
 543                 --node_river_water = "",
 544                 node_riverbed = "default:sand",
 545                 depth_riverbed = 2,
 546                 y_min = 5,
 547                 y_max = 31000,
 548                 heat_point = 20,
 549                 humidity_point = 35,
 550         })
 551
 552         minetest.register_biome({
 553                 name = "snowy_grassland_ocean",
 554                 --node_dust = "",
 555                 node_top = "default:sand",
 556                 depth_top = 1,
 557                 node_filler = "default:sand",
 558                 depth_filler = 3,
 559                 --node_stone = "",
 560                 --node_water_top = "",
 561                 --depth_water_top = ,
 562                 --node_water = "",
 563                 --node_river_water = "",
 564                 node_riverbed = "default:sand",
 565                 depth_riverbed = 2,
 566                 y_min = -112,
 567                 y_max = 4,
 568                 heat_point = 20,
 569                 humidity_point = 35,
 570         })
 571
 572         -- Grassland
 573
 574         minetest.register_biome({
 575                 name = "grassland",
 576                 --node_dust = "",
 577                 node_top = "default:dirt_with_grass",
 578                 depth_top = 1,
 579                 node_filler = "default:dirt",
 580                 depth_filler = 1,
 581                 --node_stone = "",
 582                 --node_water_top = "",
 583                 --depth_water_top = ,
 584                 --node_water = "",
 585                 --node_river_water = "",
 586                 node_riverbed = "default:sand",
 587                 depth_riverbed = 2,
 588                 y_min = 6,
 589                 y_max = 31000,
 590                 heat_point = 50,
 591                 humidity_point = 35,
 592         })
 593
 594         minetest.register_biome({
 595                 name = "grassland_dunes",
 596                 --node_dust = "",
 597                 node_top = "default:sand",
 598                 depth_top = 1,
 599                 node_filler = "default:sand",
 600                 depth_filler = 2,
 601                 --node_stone = "",
 602                 --node_water_top = "",
 603                 --depth_water_top = ,
 604                 --node_water = "",
 605                 --node_river_water = "",
 606                 node_riverbed = "default:sand",
 607                 depth_riverbed = 2,
 608                 y_min = 5,
 609                 y_max = 5,
 610                 heat_point = 50,
 611                 humidity_point = 35,
 612         })
 613
 614         minetest.register_biome({
 615                 name = "grassland_ocean",
 616                 --node_dust = "",
 617                 node_top = "default:sand",
 618                 depth_top = 1,
 619                 node_filler = "default:sand",
 620                 depth_filler = 3,
 621                 --node_stone = "",
 622                 --node_water_top = "",
 623                 --depth_water_top = ,
 624                 --node_water = "",
 625                 --node_river_water = "",
 626                 node_riverbed = "default:sand",
 627                 depth_riverbed = 2,
 628                 y_min = -112,
 629                 y_max = 4,
 630                 heat_point = 50,
 631                 humidity_point = 35,
 632         })
 633
 634         -- Coniferous forest
 635
 636         minetest.register_biome({
 637                 name = "coniferous_forest",
 638                 --node_dust = "",
 639                 node_top = "default:dirt_with_grass",
 640                 depth_top = 1,
 641                 node_filler = "default:dirt",
 642                 depth_filler = 3,
 643                 --node_stone = "",
 644                 --node_water_top = "",
 645                 --depth_water_top = ,
 646                 --node_water = "",
 647                 --node_river_water = "",
 648                 node_riverbed = "default:sand",
 649                 depth_riverbed = 2,
 650                 y_min = 6,
 651                 y_max = 31000,
 652                 heat_point = 45,
 653                 humidity_point = 70,
 654         })
 655
 656         minetest.register_biome({
 657                 name = "coniferous_forest_dunes",
 658                 --node_dust = "",
 659                 node_top = "default:sand",
 660                 depth_top = 1,
 661                 node_filler = "default:sand",
 662                 depth_filler = 3,
 663                 --node_stone = "",
 664                 --node_water_top = "",
 665                 --depth_water_top = ,
 666                 --node_water = "",
 667                 --node_river_water = "",
 668                 node_riverbed = "default:sand",
 669                 depth_riverbed = 2,
 670                 y_min = 5,
 671                 y_max = 5,
 672                 heat_point = 45,
 673                 humidity_point = 70,
 674         })
 675
 676         minetest.register_biome({
 677                 name = "coniferous_forest_ocean",
 678                 --node_dust = "",
 679                 node_top = "default:sand",
 680                 depth_top = 1,
 681                 node_filler = "default:sand",
 682                 depth_filler = 3,
 683                 --node_stone = "",
 684                 --node_water_top = "",
 685                 --depth_water_top = ,
 686                 --node_water = "",
 687                 --node_river_water = "",
 688                 node_riverbed = "default:sand",
 689                 depth_riverbed = 2,
 690                 y_min = -112,
 691                 y_max = 4,
 692                 heat_point = 45,
 693                 humidity_point = 70,
 694         })
 695
 696         -- Deciduous forest
 697
 698         minetest.register_biome({
 699                 name = "deciduous_forest",
 700                 --node_dust = "",
 701                 node_top = "default:dirt_with_grass",
 702                 depth_top = 1,
 703                 node_filler = "default:dirt",
 704                 depth_filler = 3,
 705                 --node_stone = "",
 706                 --node_water_top = "",
 707                 --depth_water_top = ,
 708                 --node_water = "",
 709                 --node_river_water = "",
 710                 node_riverbed = "default:sand",
 711                 depth_riverbed = 2,
 712                 y_min = 1,
 713                 y_max = 31000,
 714                 heat_point = 60,
 715                 humidity_point = 68,
 716         })
 717
 718         minetest.register_biome({
 719                 name = "deciduous_forest_shore",
 720                 --node_dust = "",
 721                 node_top = "default:dirt",
 722                 depth_top = 1,
 723                 node_filler = "default:dirt",
 724                 depth_filler = 3,
 725                 --node_stone = "",
 726                 --node_water_top = "",
 727                 --depth_water_top = ,
 728                 --node_water = "",
 729                 --node_river_water = "",
 730                 node_riverbed = "default:sand",
 731                 depth_riverbed = 2,
 732                 y_min = -1,
 733                 y_max = 0,
 734                 heat_point = 60,
 735                 humidity_point = 68,
 736         })
 737
 738         minetest.register_biome({
 739                 name = "deciduous_forest_ocean",
 740                 --node_dust = "",
 741                 node_top = "default:sand",
 742                 depth_top = 1,
 743                 node_filler = "default:sand",
 744                 depth_filler = 3,
 745                 --node_stone = "",
 746                 --node_water_top = "",
 747                 --depth_water_top = ,
 748                 --node_water = "",
 749                 --node_river_water = "",
 750                 node_riverbed = "default:sand",
 751                 depth_riverbed = 2,
 752                 y_min = -112,
 753                 y_max = -2,
 754                 heat_point = 60,
 755                 humidity_point = 68,
 756         })
 757
 758         -- Desert
 759
 760         minetest.register_biome({
 761                 name = "desert",
 762                 --node_dust = "",
 763                 node_top = "default:desert_sand",
 764                 depth_top = 1,
 765                 node_filler = "default:desert_sand",
 766                 depth_filler = 1,
 767                 node_stone = "default:desert_stone",
 768                 --node_water_top = "",
 769                 --depth_water_top = ,
 770                 --node_water = "",
 771                 --node_river_water = "",
 772                 node_riverbed = "default:sand",
 773                 depth_riverbed = 2,
 774                 y_min = 5,
 775                 y_max = 31000,
 776                 heat_point = 92,
 777                 humidity_point = 16,
 778         })
 779
 780         minetest.register_biome({
 781                 name = "desert_ocean",
 782                 --node_dust = "",
 783                 node_top = "default:sand",
 784                 depth_top = 1,
 785                 node_filler = "default:sand",
 786                 depth_filler = 3,
 787                 node_stone = "default:desert_stone",
 788                 --node_water_top = "",
 789                 --depth_water_top = ,
 790                 --node_water = "",
 791                 --node_river_water = "",
 792                 node_riverbed = "default:sand",
 793                 depth_riverbed = 2,
 794                 y_min = -112,
 795                 y_max = 4,
 796                 heat_point = 92,
 797                 humidity_point = 16,
 798         })
 799
 800         -- Sandstone desert
 801
 802         minetest.register_biome({
 803                 name = "sandstone_desert",
 804                 --node_dust = "",
 805                 node_top = "default:sand",
 806                 depth_top = 1,
 807                 node_filler = "default:sand",
 808                 depth_filler = 0,
 809                 node_stone = "default:sandstone",
 810                 --node_water_top = "",
 811                 --depth_water_top = ,
 812                 --node_water = "",
 813                 --node_river_water = "",
 814                 node_riverbed = "default:sand",
 815                 depth_riverbed = 2,
 816                 y_min = 5,
 817                 y_max = 31000,
 818                 heat_point = 60,
 819                 humidity_point = 0,
 820         })
 821
 822         minetest.register_biome({
 823                 name = "sandstone_desert_ocean",
 824                 --node_dust = "",
 825                 node_top = "default:sand",
 826                 depth_top = 1,
 827                 node_filler = "default:sand",
 828                 depth_filler = 3,
 829                 node_stone = "default:sandstone",
 830                 --node_water_top = "",
 831                 --depth_water_top = ,
 832                 --node_water = "",
 833                 --node_river_water = "",
 834                 node_riverbed = "default:sand",
 835                 depth_riverbed = 2,
 836                 y_min = -112,
 837                 y_max = 4,
 838                 heat_point = 60,
 839                 humidity_point = 0,
 840         })
 841
 842         -- Cold desert
 843
 844         minetest.register_biome({
 845                 name = "cold_desert",
 846                 --node_dust = "",
 847                 node_top = "default:silver_sand",
 848                 depth_top = 1,
 849                 node_filler = "default:silver_sand",
 850                 depth_filler = 1,
 851                 --node_stone = "",
 852                 --node_water_top = "",
 853                 --depth_water_top = ,
 854                 --node_water = "",
 855                 --node_river_water = "",
 856                 node_riverbed = "default:sand",
 857                 depth_riverbed = 2,
 858                 y_min = 5,
 859                 y_max = 31000,
 860                 heat_point = 40,
 861                 humidity_point = 0,
 862         })
 863
 864         minetest.register_biome({
 865                 name = "cold_desert_ocean",
 866                 --node_dust = "",
 867                 node_top = "default:sand",
 868                 depth_top = 1,
 869                 node_filler = "default:sand",
 870                 depth_filler = 3,
 871                 --node_stone = "",
 872                 --node_water_top = "",
 873                 --depth_water_top = ,
 874                 --node_water = "",
 875                 --node_river_water = "",
 876                 node_riverbed = "default:sand",
 877                 depth_riverbed = 2,
 878                 y_min = -112,
 879                 y_max = 4,
 880                 heat_point = 40,
 881                 humidity_point = 0,
 882         })
 883
 884         -- Savanna
 885
 886         minetest.register_biome({
 887                 name = "savanna",
 888                 --node_dust = "",
 889                 node_top = "default:dirt_with_dry_grass",
 890                 depth_top = 1,
 891                 node_filler = "default:dirt",
 892                 depth_filler = 1,
 893                 --node_stone = "",
 894                 --node_water_top = "",
 895                 --depth_water_top = ,
 896                 --node_water = "",
 897                 --node_river_water = "",
 898                 node_riverbed = "default:sand",
 899                 depth_riverbed = 2,
 900                 y_min = 1,
 901                 y_max = 31000,
 902                 heat_point = 89,
 903                 humidity_point = 42,
 904         })
 905
 906         minetest.register_biome({
 907                 name = "savanna_shore",
 908                 --node_dust = "",
 909                 node_top = "default:dirt",
 910                 depth_top = 1,
 911                 node_filler = "default:dirt",
 912                 depth_filler = 3,
 913                 --node_stone = "",
 914                 --node_water_top = "",
 915                 --depth_water_top = ,
 916                 --node_water = "",
 917                 --node_river_water = "",
 918                 node_riverbed = "default:sand",
 919                 depth_riverbed = 2,
 920                 y_min = -1,
 921                 y_max = 0,
 922                 heat_point = 89,
 923                 humidity_point = 42,
 924         })
 925
 926         minetest.register_biome({
 927                 name = "savanna_ocean",
 928                 --node_dust = "",
 929                 node_top = "default:sand",
 930                 depth_top = 1,
 931                 node_filler = "default:sand",
 932                 depth_filler = 3,
 933                 --node_stone = "",
 934                 --node_water_top = "",
 935                 --depth_water_top = ,
 936                 --node_water = "",
 937                 --node_river_water = "",
 938                 node_riverbed = "default:sand",
 939                 depth_riverbed = 2,
 940                 y_min = -112,
 941                 y_max = -2,
 942                 heat_point = 89,
 943                 humidity_point = 42,
 944         })
 945
 946         -- Rainforest
 947
 948         minetest.register_biome({
 949                 name = "rainforest",
 950                 --node_dust = "",
 951                 node_top = "default:dirt_with_grass",
 952                 depth_top = 1,
 953                 node_filler = "default:dirt",
 954                 depth_filler = 3,
 955                 --node_stone = "",
 956                 --node_water_top = "",
 957                 --depth_water_top = ,
 958                 --node_water = "",
 959                 --node_river_water = "",
 960                 node_riverbed = "default:sand",
 961                 depth_riverbed = 2,
 962                 y_min = 1,
 963                 y_max = 31000,
 964                 heat_point = 86,
 965                 humidity_point = 65,
 966         })
 967
 968         minetest.register_biome({
 969                 name = "rainforest_swamp",
 970                 --node_dust = "",
 971                 node_top = "default:dirt",
 972                 depth_top = 1,
 973                 node_filler = "default:dirt",
 974                 depth_filler = 3,
 975                 --node_stone = "",
 976                 --node_water_top = "",
 977                 --depth_water_top = ,
 978                 --node_water = "",
 979                 --node_river_water = "",
 980                 node_riverbed = "default:sand",
 981                 depth_riverbed = 2,
 982                 y_min = -1,
 983                 y_max = 0,
 984                 heat_point = 86,
 985                 humidity_point = 65,
 986         })
 987
 988         minetest.register_biome({
 989                 name = "rainforest_ocean",
 990                 --node_dust = "",
 991                 node_top = "default:sand",
 992                 depth_top = 1,
 993                 node_filler = "default:sand",
 994                 depth_filler = 3,
 995                 --node_stone = "",
 996                 --node_water_top = "",
 997                 --depth_water_top = ,
 998                 --node_water = "",
 999                 --node_river_water = "",
1000                 node_riverbed = "default:sand",
1001                 depth_riverbed = 2,
1002                 y_min = -112,
1003                 y_max = -2,
1004                 heat_point = 86,
1005                 humidity_point = 65,
1006         })
1007
1008         -- Underground
1009
1010         minetest.register_biome({
1011                 name = "underground",
1012                 --node_dust = "",
1013                 --node_top = "",
1014                 --depth_top = ,
1015                 --node_filler = "",
1016                 --depth_filler = ,
1017                 --node_stone = "",
1018                 --node_water_top = "",
1019                 --depth_water_top = ,
1020                 --node_water = "",
1021                 --node_river_water = "",
1022                 y_min = -31000,
1023                 y_max = -113,
1024                 heat_point = 50,
1025                 humidity_point = 50,
1026         })
1027 end
1028
1029
1030 --
1031 -- Register decorations
1032 --
1033
1034 -- Mgv6
1035
1036 function default.register_mgv6_decorations()
1037         minetest.clear_registered_decorations()
1038
1039         -- Papyrus
1040
1041         minetest.register_decoration({
1042                 deco_type = "simple",
1043                 place_on = {"default:dirt_with_grass"},
1044                 sidelen = 16,
1045                 noise_params = {
1046                         offset = -0.3,
1047                         scale = 0.7,
1048                         spread = {x = 100, y = 100, z = 100},
1049                         seed = 354,
1050                         octaves = 3,
1051                         persist = 0.7
1052                 },
1053                 y_min = 1,
1054                 y_max = 1,
1055                 decoration = "default:papyrus",
1056                 height = 2,
1057                 height_max = 4,
1058                 spawn_by = "default:water_source",
1059                 num_spawn_by = 1,
1060         })
1061
1062         -- Cacti
1063
1064         minetest.register_decoration({
1065                 deco_type = "simple",
1066                 place_on = {"default:desert_sand"},
1067                 sidelen = 16,
1068                 noise_params = {
1069                         offset = -0.012,
1070                         scale = 0.024,
1071                         spread = {x = 100, y = 100, z = 100},
1072                         seed = 230,
1073                         octaves = 3,
1074                         persist = 0.6
1075                 },
1076                 y_min = 1,
1077                 y_max = 30,
1078                 decoration = "default:cactus",
1079                 height = 3,
1080                 height_max = 4,
1081         })
1082
1083         -- Long grasses
1084
1085         for length = 1, 5 do
1086                 minetest.register_decoration({
1087                         deco_type = "simple",
1088                         place_on = {"default:dirt_with_grass"},
1089                         sidelen = 16,
1090                         noise_params = {
1091                                 offset = 0,
1092                                 scale = 0.007,
1093                                 spread = {x = 100, y = 100, z = 100},
1094                                 seed = 329,
1095                                 octaves = 3,
1096                                 persist = 0.6
1097                         },
1098                         y_min = 1,
1099                         y_max = 30,
1100                         decoration = "default:grass_"..length,
1101                 })
1102         end
1103
1104         -- Dry shrubs
1105
1106         minetest.register_decoration({
1107                 deco_type = "simple",
1108                 place_on = {"default:desert_sand", "default:dirt_with_snow"},
1109                 sidelen = 16,
1110                 noise_params = {
1111                         offset = 0,
1112                         scale = 0.035,
1113                         spread = {x = 100, y = 100, z = 100},
1114                         seed = 329,
1115                         octaves = 3,
1116                         persist = 0.6
1117                 },
1118                 y_min = 1,
1119                 y_max = 30,
1120                 decoration = "default:dry_shrub",
1121         })
1122 end
1123
1124
1125 -- All mapgens except mgv6
1126
1127 local function register_grass_decoration(offset, scale, length)
1128         minetest.register_decoration({
1129                 deco_type = "simple",
1130                 place_on = {"default:dirt_with_grass", "default:sand"},
1131                 sidelen = 16,
1132                 noise_params = {
1133                         offset = offset,
1134                         scale = scale,
1135                         spread = {x = 200, y = 200, z = 200},
1136                         seed = 329,
1137                         octaves = 3,
1138                         persist = 0.6
1139                 },
1140                 biomes = {"grassland", "grassland_dunes", "deciduous_forest",
1141                         "coniferous_forest", "coniferous_forest_dunes"},
1142                 y_min = 1,
1143                 y_max = 31000,
1144                 decoration = "default:grass_" .. length,
1145         })
1146 end
1147
1148 local function register_dry_grass_decoration(offset, scale, length)
1149         minetest.register_decoration({
1150                 deco_type = "simple",
1151                 place_on = {"default:dirt_with_dry_grass"},
1152                 sidelen = 16,
1153                 noise_params = {
1154                         offset = offset,
1155                         scale = scale,
1156                         spread = {x = 200, y = 200, z = 200},
1157                         seed = 329,
1158                         octaves = 3,
1159                         persist = 0.6
1160                 },
1161                 biomes = {"savanna"},
1162                 y_min = 1,
1163                 y_max = 31000,
1164                 decoration = "default:dry_grass_" .. length,
1165         })
1166 end
1167
1168
1169 function default.register_decorations()
1170         minetest.clear_registered_decorations()
1171
1172         -- Apple tree and log
1173
1174         minetest.register_decoration({
1175                 deco_type = "schematic",
1176                 place_on = {"default:dirt_with_grass"},
1177                 sidelen = 16,
1178                 noise_params = {
1179                         offset = 0.036,
1180                         scale = 0.022,
1181                         spread = {x = 250, y = 250, z = 250},
1182                         seed = 2,
1183                         octaves = 3,
1184                         persist = 0.66
1185                 },
1186                 biomes = {"deciduous_forest"},
1187                 y_min = 1,
1188                 y_max = 31000,
1189                 schematic = minetest.get_modpath("default") .. "/schematics/apple_tree.mts",
1190                 flags = "place_center_x, place_center_z",
1191         })
1192
1193         minetest.register_decoration({
1194                 deco_type = "schematic",
1195                 place_on = {"default:dirt_with_grass"},
1196                 sidelen = 16,
1197                 noise_params = {
1198                         offset = 0.0018,
1199                         scale = 0.0011,
1200                         spread = {x = 250, y = 250, z = 250},
1201                         seed = 2,
1202                         octaves = 3,
1203                         persist = 0.66
1204                 },
1205                 biomes = {"deciduous_forest"},
1206                 y_min = 1,
1207                 y_max = 31000,
1208                 schematic = minetest.get_modpath("default") .. "/schematics/apple_log.mts",
1209                 flags = "place_center_x",
1210                 rotation = "random",
1211         })
1212
1213         -- Jungle tree and log
1214
1215         minetest.register_decoration({
1216                 deco_type = "schematic",
1217                 place_on = {"default:dirt_with_grass", "default:dirt"},
1218                 sidelen = 80,
1219                 fill_ratio = 0.1,
1220                 biomes = {"rainforest", "rainforest_swamp"},
1221                 y_min = -1,
1222                 y_max = 31000,
1223                 schematic = minetest.get_modpath("default") .. "/schematics/jungle_tree.mts",
1224                 flags = "place_center_x, place_center_z",
1225                 rotation = "random",
1226         })
1227
1228         minetest.register_decoration({
1229                 deco_type = "schematic",
1230                 place_on = {"default:dirt_with_grass", "default:dirt"},
1231                 sidelen = 80,
1232                 fill_ratio = 0.005,
1233                 biomes = {"rainforest", "rainforest_swamp"},
1234                 y_min = 1,
1235                 y_max = 31000,
1236                 schematic = minetest.get_modpath("default") .. "/schematics/jungle_log.mts",
1237                 flags = "place_center_x",
1238                 rotation = "random",
1239         })
1240
1241         -- Taiga and temperate coniferous forest pine tree and log
1242
1243         minetest.register_decoration({
1244                 deco_type = "schematic",
1245                 place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
1246                 sidelen = 16,
1247                 noise_params = {
1248                         offset = 0.036,
1249                         scale = 0.022,
1250                         spread = {x = 250, y = 250, z = 250},
1251                         seed = 2,
1252                         octaves = 3,
1253                         persist = 0.66
1254                 },
1255                 biomes = {"taiga", "coniferous_forest"},
1256                 y_min = 2,
1257                 y_max = 31000,
1258                 schematic = minetest.get_modpath("default") .. "/schematics/pine_tree.mts",
1259                 flags = "place_center_x, place_center_z",
1260         })
1261
1262         minetest.register_decoration({
1263                 deco_type = "schematic",
1264                 place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
1265                 sidelen = 80,
1266                 noise_params = {
1267                         offset = 0.0018,
1268                         scale = 0.0011,
1269                         spread = {x = 250, y = 250, z = 250},
1270                         seed = 2,
1271                         octaves = 3,
1272                         persist = 0.66
1273                 },
1274                 biomes = {"taiga", "coniferous_forest"},
1275                 y_min = 1,
1276                 y_max = 31000,
1277                 schematic = minetest.get_modpath("default") .. "/schematics/pine_log.mts",
1278                 flags = "place_center_x",
1279                 rotation = "random",
1280         })
1281
1282         -- Acacia tree and log
1283
1284         minetest.register_decoration({
1285                 deco_type = "schematic",
1286                 place_on = {"default:dirt_with_dry_grass"},
1287                 sidelen = 16,
1288                 noise_params = {
1289                         offset = 0,
1290                         scale = 0.002,
1291                         spread = {x = 250, y = 250, z = 250},
1292                         seed = 2,
1293                         octaves = 3,
1294                         persist = 0.66
1295                 },
1296                 biomes = {"savanna"},
1297                 y_min = 1,
1298                 y_max = 31000,
1299                 schematic = minetest.get_modpath("default") .. "/schematics/acacia_tree.mts",
1300                 flags = "place_center_x, place_center_z",
1301                 rotation = "random",
1302         })
1303
1304         minetest.register_decoration({
1305                 deco_type = "schematic",
1306                 place_on = {"default:dirt_with_dry_grass"},
1307                 sidelen = 16,
1308                 noise_params = {
1309                         offset = 0,
1310                         scale = 0.001,
1311                         spread = {x = 250, y = 250, z = 250},
1312                         seed = 2,
1313                         octaves = 3,
1314                         persist = 0.66
1315                 },
1316                 biomes = {"savanna"},
1317                 y_min = 1,
1318                 y_max = 31000,
1319                 schematic = minetest.get_modpath("default") .. "/schematics/acacia_log.mts",
1320                 flags = "place_center_x",
1321                 rotation = "random",
1322         })
1323
1324         -- Aspen tree and log
1325
1326         minetest.register_decoration({
1327                 deco_type = "schematic",
1328                 place_on = {"default:dirt_with_grass"},
1329                 sidelen = 16,
1330                 noise_params = {
1331                         offset = 0.0,
1332                         scale = -0.015,
1333                         spread = {x = 250, y = 250, z = 250},
1334                         seed = 2,
1335                         octaves = 3,
1336                         persist = 0.66
1337                 },
1338                 biomes = {"deciduous_forest"},
1339                 y_min = 1,
1340                 y_max = 31000,
1341                 schematic = minetest.get_modpath("default") .. "/schematics/aspen_tree.mts",
1342                 flags = "place_center_x, place_center_z",
1343         })
1344
1345         minetest.register_decoration({
1346                 deco_type = "schematic",
1347                 place_on = {"default:dirt_with_grass"},
1348                 sidelen = 16,
1349                 noise_params = {
1350                         offset = 0.0,
1351                         scale = -0.0008,
1352                         spread = {x = 250, y = 250, z = 250},
1353                         seed = 2,
1354                         octaves = 3,
1355                         persist = 0.66
1356                 },
1357                 biomes = {"deciduous_forest"},
1358                 y_min = 1,
1359                 y_max = 31000,
1360                 schematic = minetest.get_modpath("default") .. "/schematics/aspen_log.mts",
1361                 flags = "place_center_x",
1362                 rotation = "random",
1363         })
1364
1365         -- Large cactus
1366
1367         minetest.register_decoration({
1368                 deco_type = "schematic",
1369                 place_on = {"default:desert_sand"},
1370                 sidelen = 16,
1371                 noise_params = {
1372                         offset = -0.0003,
1373                         scale = 0.0009,
1374                         spread = {x = 200, y = 200, z = 200},
1375                         seed = 230,
1376                         octaves = 3,
1377                         persist = 0.6
1378                 },
1379                 biomes = {"desert"},
1380                 y_min = 5,
1381                 y_max = 31000,
1382                 schematic = minetest.get_modpath("default") .. "/schematics/large_cactus.mts",
1383                 flags = "place_center_x",
1384                 rotation = "random",
1385         })
1386
1387         -- Cactus
1388
1389         minetest.register_decoration({
1390                 deco_type = "simple",
1391                 place_on = {"default:desert_sand"},
1392                 sidelen = 16,
1393                 noise_params = {
1394                         offset = -0.0003,
1395                         scale = 0.0009,
1396                         spread = {x = 200, y = 200, z = 200},
1397                         seed = 230,
1398                         octaves = 3,
1399                         persist = 0.6
1400                 },
1401                 biomes = {"desert"},
1402                 y_min = 5,
1403                 y_max = 31000,
1404                 decoration = "default:cactus",
1405                 height = 2,
1406                 height_max = 5,
1407         })
1408
1409         -- Papyrus
1410
1411         minetest.register_decoration({
1412                 deco_type = "schematic",
1413                 place_on = {"default:dirt"},
1414                 sidelen = 16,
1415                 noise_params = {
1416                         offset = -0.3,
1417                         scale = 0.7,
1418                         spread = {x = 200, y = 200, z = 200},
1419                         seed = 354,
1420                         octaves = 3,
1421                         persist = 0.7
1422                 },
1423                 biomes = {"savanna_shore"},
1424                 y_min = 0,
1425                 y_max = 0,
1426                 schematic = minetest.get_modpath("default") .. "/schematics/papyrus.mts",
1427         })
1428
1429         -- Bush
1430
1431         minetest.register_decoration({
1432                 deco_type = "schematic",
1433                 place_on = {"default:dirt_with_grass", "default:dirt_with_snow"},
1434                 sidelen = 16,
1435                 noise_params = {
1436                         offset = -0.004,
1437                         scale = 0.01,
1438                         spread = {x = 100, y = 100, z = 100},
1439                         seed = 137,
1440                         octaves = 3,
1441                         persist = 0.7,
1442                 },
1443                 biomes = {"snowy_grassland", "grassland", "deciduous_forest"},
1444                 y_min = 1,
1445                 y_max = 31000,
1446                 schematic = minetest.get_modpath("default") .. "/schematics/bush.mts",
1447                 flags = "place_center_x, place_center_z",
1448         })
1449
1450         -- Acacia bush
1451
1452         minetest.register_decoration({
1453                 deco_type = "schematic",
1454                 place_on = {"default:dirt_with_dry_grass"},
1455                 sidelen = 16,
1456                 noise_params = {
1457                         offset = -0.004,
1458                         scale = 0.01,
1459                         spread = {x = 100, y = 100, z = 100},
1460                         seed = 90155,
1461                         octaves = 3,
1462                         persist = 0.7,
1463                 },
1464                 biomes = {"savanna"},
1465                 y_min = 1,
1466                 y_max = 31000,
1467                 schematic = minetest.get_modpath("default") .. "/schematics/acacia_bush.mts",
1468                 flags = "place_center_x, place_center_z",
1469         })
1470
1471         -- Grasses
1472
1473         register_grass_decoration(-0.03,  0.09,  5)
1474         register_grass_decoration(-0.015, 0.075, 4)
1475         register_grass_decoration(0,      0.06,  3)
1476         register_grass_decoration(0.015,  0.045, 2)
1477         register_grass_decoration(0.03,   0.03,  1)
1478
1479         -- Dry grasses
1480
1481         register_dry_grass_decoration(0.01, 0.05,  5)
1482         register_dry_grass_decoration(0.03, 0.03,  4)
1483         register_dry_grass_decoration(0.05, 0.01,  3)
1484         register_dry_grass_decoration(0.07, -0.01, 2)
1485         register_dry_grass_decoration(0.09, -0.03, 1)
1486
1487         -- Junglegrass
1488
1489         minetest.register_decoration({
1490                 deco_type = "simple",
1491                 place_on = {"default:dirt_with_grass"},
1492                 sidelen = 80,
1493                 fill_ratio = 0.1,
1494                 biomes = {"rainforest"},
1495                 y_min = 1,
1496                 y_max = 31000,
1497                 decoration = "default:junglegrass",
1498         })
1499
1500         -- Dry shrub
1501
1502         minetest.register_decoration({
1503                 deco_type = "simple",
1504                 place_on = {"default:desert_sand",
1505                         "default:sand", "default:silver_sand"},
1506                 sidelen = 16,
1507                 noise_params = {
1508                         offset = 0,
1509                         scale = 0.02,
1510                         spread = {x = 200, y = 200, z = 200},
1511                         seed = 329,
1512                         octaves = 3,
1513                         persist = 0.6
1514                 },
1515                 biomes = {"desert", "sandstone_desert", "cold_desert"},
1516                 y_min = 2,
1517                 y_max = 31000,
1518                 decoration = "default:dry_shrub",
1519         })
1520
1521         -- Coral reef
1522
1523         minetest.register_decoration({
1524                 deco_type = "schematic",
1525                 place_on = {"default:sand"},
1526                 noise_params = {
1527                         offset = -0.1,
1528                         scale = 0.1,
1529                         spread = {x = 200, y = 200, z = 200},
1530                         seed = 7013,
1531                         octaves = 3,
1532                         persist = 1,
1533                 },
1534                 biomes = {
1535                         "desert_ocean",
1536                         "savanna_ocean",
1537                         "rainforest_ocean",
1538                 },
1539                 y_min = -8,
1540                 y_max = -2,
1541                 schematic = minetest.get_modpath("default") .. "/schematics/corals.mts",
1542                 flags = "place_center_x, place_center_z",
1543                 rotation = "random",
1544         })
1545 end
1546
1547
1548 --
1549 -- Detect mapgen to select functions
1550 --
1551
1552 local mg_name = minetest.get_mapgen_setting("mg_name")
1553 if mg_name == "v6" then
1554         default.register_ores()
1555         default.register_mgv6_decorations()
1556 else
1557         default.register_biomes()
1558         default.register_ores()
1559         default.register_decorations()
1560 end