mods/default/mapgen.lua

   1 --
   2 -- Aliases for map generator outputs
   3 --
   4
   5 minetest.register_alias("mapgen_air", "air")
   6 minetest.register_alias("mapgen_stone", "default:stone")
   7 minetest.register_alias("mapgen_dirt", "default:dirt")
   8 minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
   9 minetest.register_alias("mapgen_sand", "default:sand")
  10 minetest.register_alias("mapgen_water_source", "default:water_source")
  11 minetest.register_alias("mapgen_river_water_source", "default:river_water_source")
  12 minetest.register_alias("mapgen_lava_source", "default:lava_source")
  13 minetest.register_alias("mapgen_gravel", "default:gravel")
  14 minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
  15 minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
  16 minetest.register_alias("mapgen_dirt_with_snow", "default:dirt_with_snow")
  17 minetest.register_alias("mapgen_snowblock", "default:snowblock")
  18 minetest.register_alias("mapgen_snow", "default:snow")
  19 minetest.register_alias("mapgen_ice", "default:ice")
  20 minetest.register_alias("mapgen_sandstone", "default:sandstone")
  21
  22 -- Flora
  23
  24 minetest.register_alias("mapgen_tree", "default:tree")
  25 minetest.register_alias("mapgen_leaves", "default:leaves")
  26 minetest.register_alias("mapgen_apple", "default:apple")
  27 minetest.register_alias("mapgen_jungletree", "default:jungletree")
  28 minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
  29 minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
  30 minetest.register_alias("mapgen_pine_tree", "default:pine_tree")
  31 minetest.register_alias("mapgen_pine_needles", "default:pine_needles")
  32
  33 -- Dungeons
  34
  35 minetest.register_alias("mapgen_cobble", "default:cobble")
  36 minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
  37 minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
  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 -- All mapgens except singlenode
  47 -- Blob ore first to avoid other ores inside blobs
  48
  49 function default.register_ores()
  50
  51         -- Clay
  52
  53         minetest.register_ore({
  54                 ore_type        = "blob",
  55                 ore             = "default:clay",
  56                 wherein         = {"default:sand"},
  57                 clust_scarcity  = 16 * 16 * 16,
  58                 clust_size      = 5,
  59                 y_min           = -15,
  60                 y_max           = 0,
  61                 noise_threshold = 0.0,
  62                 noise_params    = {
  63                         offset = 0.5,
  64                         scale = 0.2,
  65                         spread = {x = 5, y = 5, z = 5},
  66                         seed = -316,
  67                         octaves = 1,
  68                         persist = 0.0
  69                 },
  70         })
  71
  72         -- Sand
  73
  74         minetest.register_ore({
  75                 ore_type        = "blob",
  76                 ore             = "default:sand",
  77                 wherein         = {"default:stone", "default:sandstone",
  78                         "default:desert_stone"},
  79                 clust_scarcity  = 16 * 16 * 16,
  80                 clust_size      = 5,
  81                 y_min           = -31,
  82                 y_max           = 4,
  83                 noise_threshold = 0.0,
  84                 noise_params    = {
  85                         offset = 0.5,
  86                         scale = 0.2,
  87                         spread = {x = 5, y = 5, z = 5},
  88                         seed = 2316,
  89                         octaves = 1,
  90                         persist = 0.0
  91                 },
  92         })
  93
  94         -- Dirt
  95
  96         minetest.register_ore({
  97                 ore_type        = "blob",
  98                 ore             = "default:dirt",
  99                 wherein         = {"default:stone", "default:sandstone"},
 100                 clust_scarcity  = 16 * 16 * 16,
 101                 clust_size      = 5,
 102                 y_min           = -31,
 103                 y_max           = 31000,
 104                 noise_threshold = 0.0,
 105                 noise_params    = {
 106                         offset = 0.5,
 107                         scale = 0.2,
 108                         spread = {x = 5, y = 5, z = 5},
 109                         seed = 17676,
 110                         octaves = 1,
 111                         persist = 0.0
 112                 },
 113         })
 114
 115         -- Gravel
 116
 117         minetest.register_ore({
 118                 ore_type        = "blob",
 119                 ore             = "default:gravel",
 120                 wherein         = {"default:stone"},
 121                 clust_scarcity  = 16 * 16 * 16,
 122                 clust_size      = 5,
 123                 y_min           = -31000,
 124                 y_max           = 31000,
 125                 noise_threshold = 0.0,
 126                 noise_params    = {
 127                         offset = 0.5,
 128                         scale = 0.2,
 129                         spread = {x = 5, y = 5, z = 5},
 130                         seed = 766,
 131                         octaves = 1,
 132                         persist = 0.0
 133                 },
 134         })
 135
 136         -- Coal
 137
 138         minetest.register_ore({
 139                 ore_type       = "scatter",
 140                 ore            = "default:stone_with_coal",
 141                 wherein        = "default:stone",
 142                 clust_scarcity = 8 * 8 * 8,
 143                 clust_num_ores = 8,
 144                 clust_size     = 3,
 145                 y_min          = -31000,
 146                 y_max          = 64,
 147         })
 148
 149         minetest.register_ore({
 150                 ore_type       = "scatter",
 151                 ore            = "default:stone_with_coal",
 152                 wherein        = "default:stone",
 153                 clust_scarcity = 24 * 24 * 24,
 154                 clust_num_ores = 27,
 155                 clust_size     = 6,
 156                 y_min          = -31000,
 157                 y_max          = 0,
 158         })
 159
 160         -- Iron
 161
 162         minetest.register_ore({
 163                 ore_type       = "scatter",
 164                 ore            = "default:stone_with_iron",
 165                 wherein        = "default:stone",
 166                 clust_scarcity = 12 * 12 * 12,
 167                 clust_num_ores = 3,
 168                 clust_size     = 2,
 169                 y_min          = -15,
 170                 y_max          = 2,
 171         })
 172
 173         minetest.register_ore({
 174                 ore_type       = "scatter",
 175                 ore            = "default:stone_with_iron",
 176                 wherein        = "default:stone",
 177                 clust_scarcity = 9 * 9 * 9,
 178                 clust_num_ores = 5,
 179                 clust_size     = 3,
 180                 y_min          = -63,
 181                 y_max          = -16,
 182         })
 183
 184         minetest.register_ore({
 185                 ore_type       = "scatter",
 186                 ore            = "default:stone_with_iron",
 187                 wherein        = "default:stone",
 188                 clust_scarcity = 7 * 7 * 7,
 189                 clust_num_ores = 5,
 190                 clust_size     = 3,
 191                 y_min          = -31000,
 192                 y_max          = -64,
 193         })
 194
 195         minetest.register_ore({
 196                 ore_type       = "scatter",
 197                 ore            = "default:stone_with_iron",
 198                 wherein        = "default:stone",
 199                 clust_scarcity = 24 * 24 * 24,
 200                 clust_num_ores = 27,
 201                 clust_size     = 6,
 202                 y_min          = -31000,
 203                 y_max          = -64,
 204         })
 205
 206         --Mese
 207
 208         minetest.register_ore({
 209                 ore_type       = "scatter",
 210                 ore            = "default:stone_with_mese",
 211                 wherein        = "default:stone",
 212                 clust_scarcity = 18 * 18 * 18,
 213                 clust_num_ores = 3,
 214                 clust_size     = 2,
 215                 y_min          = -255,
 216                 y_max          = -64,
 217         })
 218
 219         minetest.register_ore({
 220                 ore_type       = "scatter",
 221                 ore            = "default:stone_with_mese",
 222                 wherein        = "default:stone",
 223                 clust_scarcity = 14 * 14 * 14,
 224                 clust_num_ores = 5,
 225                 clust_size     = 3,
 226                 y_min          = -31000,
 227                 y_max          = -256,
 228         })
 229
 230         minetest.register_ore({
 231                 ore_type       = "scatter",
 232                 ore            = "default:mese",
 233                 wherein        = "default:stone",
 234                 clust_scarcity = 36 * 36 * 36,
 235                 clust_num_ores = 3,
 236                 clust_size     = 2,
 237                 y_min          = -31000,
 238                 y_max          = -1024,
 239         })
 240
 241         -- Gold
 242
 243         minetest.register_ore({
 244                 ore_type       = "scatter",
 245                 ore            = "default:stone_with_gold",
 246                 wherein        = "default:stone",
 247                 clust_scarcity = 15 * 15 * 15,
 248                 clust_num_ores = 3,
 249                 clust_size     = 2,
 250                 y_min          = -255,
 251                 y_max          = -64,
 252         })
 253
 254         minetest.register_ore({
 255                 ore_type       = "scatter",
 256                 ore            = "default:stone_with_gold",
 257                 wherein        = "default:stone",
 258                 clust_scarcity = 13 * 13 * 13,
 259                 clust_num_ores = 5,
 260                 clust_size     = 3,
 261                 y_min          = -31000,
 262                 y_max          = -256,
 263         })
 264
 265         -- Diamond
 266
 267         minetest.register_ore({
 268                 ore_type       = "scatter",
 269                 ore            = "default:stone_with_diamond",
 270                 wherein        = "default:stone",
 271                 clust_scarcity = 17 * 17 * 17,
 272                 clust_num_ores = 4,
 273                 clust_size     = 3,
 274                 y_min          = -255,
 275                 y_max          = -128,
 276         })
 277
 278         minetest.register_ore({
 279                 ore_type       = "scatter",
 280                 ore            = "default:stone_with_diamond",
 281                 wherein        = "default:stone",
 282                 clust_scarcity = 15 * 15 * 15,
 283                 clust_num_ores = 4,
 284                 clust_size     = 3,
 285                 y_min          = -31000,
 286                 y_max          = -256,
 287         })
 288
 289         -- Copper
 290
 291         minetest.register_ore({
 292                 ore_type       = "scatter",
 293                 ore            = "default:stone_with_copper",
 294                 wherein        = "default:stone",
 295                 clust_scarcity = 12 * 12 * 12,
 296                 clust_num_ores = 4,
 297                 clust_size     = 3,
 298                 y_min          = -63,
 299                 y_max          = -16,
 300         })
 301
 302         minetest.register_ore({
 303                 ore_type       = "scatter",
 304                 ore            = "default:stone_with_copper",
 305                 wherein        = "default:stone",
 306                 clust_scarcity = 9 * 9 * 9,
 307                 clust_num_ores = 5,
 308                 clust_size     = 3,
 309                 y_min          = -31000,
 310                 y_max          = -64,
 311         })
 312 end
 313
 314
 315 --
 316 -- Register biomes
 317 --
 318
 319 -- All mapgens except mgv6 and singlenode
 320
 321 function default.register_biomes()
 322         minetest.clear_registered_biomes()
 323
 324         -- Permanent ice
 325
 326         minetest.register_biome({
 327                 name = "glacier",
 328                 node_dust = "default:snowblock",
 329                 node_top = "default:snowblock",
 330                 depth_top = 1,
 331                 node_filler = "default:snowblock",
 332                 depth_filler = 3,
 333                 node_stone = "default:ice",
 334                 node_water_top = "default:ice",
 335                 depth_water_top = 10,
 336                 --node_water = "",
 337                 node_river_water = "default:ice",
 338                 y_min = -8,
 339                 y_max = 31000,
 340                 heat_point = 0,
 341                 humidity_point = 50,
 342         })
 343
 344         minetest.register_biome({
 345                 name = "glacier_ocean",
 346                 node_dust = "default:snowblock",
 347                 node_top = "default:sand",
 348                 depth_top = 1,
 349                 node_filler = "default:sand",
 350                 depth_filler = 3,
 351                 --node_stone = "",
 352                 --node_water_top = "",
 353                 --depth_water_top = ,
 354                 --node_water = "",
 355                 --node_river_water = "",
 356                 y_min = -112,
 357                 y_max = -9,
 358                 heat_point = 0,
 359                 humidity_point = 50,
 360         })
 361
 362         -- Cold
 363
 364         minetest.register_biome({
 365                 name = "tundra",
 366                 --node_dust = "",
 367                 node_top = "default:dirt_with_snow",
 368                 depth_top = 1,
 369                 node_filler = "default:dirt",
 370                 depth_filler = 1,
 371                 --node_stone = "",
 372                 --node_water_top = "",
 373                 --depth_water_top = ,
 374                 --node_water = "",
 375                 --node_river_water = "",
 376                 y_min = 2,
 377                 y_max = 31000,
 378                 heat_point = 15,
 379                 humidity_point = 35,
 380         })
 381
 382         minetest.register_biome({
 383                 name = "tundra_ocean",
 384                 --node_dust = "",
 385                 node_top = "default:sand",
 386                 depth_top = 1,
 387                 node_filler = "default:sand",
 388                 depth_filler = 3,
 389                 --node_stone = "",
 390                 --node_water_top = "",
 391                 --depth_water_top = ,
 392                 --node_water = "",
 393                 --node_river_water = "",
 394                 y_min = -112,
 395                 y_max = 1,
 396                 heat_point = 15,
 397                 humidity_point = 35,
 398         })
 399
 400
 401         minetest.register_biome({
 402                 name = "taiga",
 403                 node_dust = "default:snow",
 404                 node_top = "default:dirt_with_snow",
 405                 depth_top = 1,
 406                 node_filler = "default:dirt",
 407                 depth_filler = 3,
 408                 --node_stone = "",
 409                 --node_water_top = "",
 410                 --depth_water_top = ,
 411                 --node_water = "",
 412                 --node_river_water = "",
 413                 y_min = 2,
 414                 y_max = 31000,
 415                 heat_point = 15,
 416                 humidity_point = 65,
 417         })
 418
 419         minetest.register_biome({
 420                 name = "taiga_ocean",
 421                 --node_dust = "",
 422                 node_top = "default:sand",
 423                 depth_top = 1,
 424                 node_filler = "default:sand",
 425                 depth_filler = 3,
 426                 --node_stone = "",
 427                 --node_water_top = "",
 428                 --depth_water_top = ,
 429                 --node_water = "",
 430                 --node_river_water = "",
 431                 y_min = -112,
 432                 y_max = 1,
 433                 heat_point = 15,
 434                 humidity_point = 65,
 435         })
 436
 437         -- Temperate
 438
 439         minetest.register_biome({
 440                 name = "stone_grassland",
 441                 --node_dust = "",
 442                 node_top = "default:dirt_with_grass",
 443                 depth_top = 1,
 444                 node_filler = "default:dirt",
 445                 depth_filler = 1,
 446                 --node_stone = "",
 447                 --node_water_top = "",
 448                 --depth_water_top = ,
 449                 --node_water = "",
 450                 --node_river_water = "",
 451                 y_min = 6,
 452                 y_max = 31000,
 453                 heat_point = 40,
 454                 humidity_point = 35,
 455         })
 456
 457         minetest.register_biome({
 458                 name = "stone_grassland_dunes",
 459                 --node_dust = "",
 460                 node_top = "default:sand",
 461                 depth_top = 1,
 462                 node_filler = "default:sand",
 463                 depth_filler = 2,
 464                 --node_stone = "",
 465                 --node_water_top = "",
 466                 --depth_water_top = ,
 467                 --node_water = "",
 468                 --node_river_water = "",
 469                 y_min = 5,
 470                 y_max = 5,
 471                 heat_point = 40,
 472                 humidity_point = 35,
 473         })
 474
 475         minetest.register_biome({
 476                 name = "stone_grassland_ocean",
 477                 --node_dust = "",
 478                 node_top = "default:sand",
 479                 depth_top = 1,
 480                 node_filler = "default:sand",
 481                 depth_filler = 3,
 482                 --node_stone = "",
 483                 --node_water_top = "",
 484                 --depth_water_top = ,
 485                 --node_water = "",
 486                 --node_river_water = "",
 487                 y_min = -112,
 488                 y_max = 4,
 489                 heat_point = 40,
 490                 humidity_point = 35,
 491         })
 492
 493
 494         minetest.register_biome({
 495                 name = "coniferous_forest",
 496                 --node_dust = "",
 497                 node_top = "default:dirt_with_grass",
 498                 depth_top = 1,
 499                 node_filler = "default:dirt",
 500                 depth_filler = 3,
 501                 --node_stone = "",
 502                 --node_water_top = "",
 503                 --depth_water_top = ,
 504                 --node_water = "",
 505                 --node_river_water = "",
 506                 y_min = 6,
 507                 y_max = 31000,
 508                 heat_point = 40,
 509                 humidity_point = 65,
 510         })
 511
 512         minetest.register_biome({
 513                 name = "coniferous_forest_dunes",
 514                 --node_dust = "",
 515                 node_top = "default:sand",
 516                 depth_top = 1,
 517                 node_filler = "default:sand",
 518                 depth_filler = 3,
 519                 --node_stone = "",
 520                 --node_water_top = "",
 521                 --depth_water_top = ,
 522                 --node_water = "",
 523                 --node_river_water = "",
 524                 y_min = 5,
 525                 y_max = 5,
 526                 heat_point = 40,
 527                 humidity_point = 65,
 528         })
 529
 530         minetest.register_biome({
 531                 name = "coniferous_forest_ocean",
 532                 --node_dust = "",
 533                 node_top = "default:sand",
 534                 depth_top = 1,
 535                 node_filler = "default:sand",
 536                 depth_filler = 3,
 537                 --node_stone = "",
 538                 --node_water_top = "",
 539                 --depth_water_top = ,
 540                 --node_water = "",
 541                 --node_river_water = "",
 542                 y_min = -112,
 543                 y_max = 4,
 544                 heat_point = 40,
 545                 humidity_point = 65,
 546         })
 547
 548
 549         minetest.register_biome({
 550                 name = "sandstone_grassland",
 551                 --node_dust = "",
 552                 node_top = "default:dirt_with_grass",
 553                 depth_top = 1,
 554                 node_filler = "default:dirt",
 555                 depth_filler = 1,
 556                 node_stone = "default:sandstone",
 557                 --node_water_top = "",
 558                 --depth_water_top = ,
 559                 --node_water = "",
 560                 --node_river_water = "",
 561                 y_min = 6,
 562                 y_max = 31000,
 563                 heat_point = 60,
 564                 humidity_point = 35,
 565         })
 566
 567         minetest.register_biome({
 568                 name = "sandstone_grassland_dunes",
 569                 --node_dust = "",
 570                 node_top = "default:sand",
 571                 depth_top = 1,
 572                 node_filler = "default:sand",
 573                 depth_filler = 2,
 574                 node_stone = "default:sandstone",
 575                 --node_water_top = "",
 576                 --depth_water_top = ,
 577                 --node_water = "",
 578                 --node_river_water = "",
 579                 y_min = 5,
 580                 y_max = 5,
 581                 heat_point = 60,
 582                 humidity_point = 35,
 583         })
 584
 585         minetest.register_biome({
 586                 name = "sandstone_grassland_ocean",
 587                 --node_dust = "",
 588                 node_top = "default:sand",
 589                 depth_top = 1,
 590                 node_filler = "default:sand",
 591                 depth_filler = 3,
 592                 node_stone = "default:sandstone",
 593                 --node_water_top = "",
 594                 --depth_water_top = ,
 595                 --node_water = "",
 596                 --node_river_water = "",
 597                 y_min = -112,
 598                 y_max = 4,
 599                 heat_point = 60,
 600                 humidity_point = 35,
 601         })
 602
 603
 604         minetest.register_biome({
 605                 name = "deciduous_forest",
 606                 --node_dust = "",
 607                 node_top = "default:dirt_with_grass",
 608                 depth_top = 1,
 609                 node_filler = "default:dirt",
 610                 depth_filler = 3,
 611                 --node_stone = "",
 612                 --node_water_top = "",
 613                 --depth_water_top = ,
 614                 --node_water = "",
 615                 --node_river_water = "",
 616                 y_min = 1,
 617                 y_max = 31000,
 618                 heat_point = 60,
 619                 humidity_point = 65,
 620         })
 621
 622         minetest.register_biome({
 623                 name = "deciduous_forest_swamp",
 624                 --node_dust = "",
 625                 node_top = "default:dirt",
 626                 depth_top = 1,
 627                 node_filler = "default:dirt",
 628                 depth_filler = 3,
 629                 --node_stone = "",
 630                 --node_water_top = "",
 631                 --depth_water_top = ,
 632                 --node_water = "",
 633                 --node_river_water = "",
 634                 y_min = -3,
 635                 y_max = 0,
 636                 heat_point = 60,
 637                 humidity_point = 65,
 638         })
 639
 640         minetest.register_biome({
 641                 name = "deciduous_forest_ocean",
 642                 --node_dust = "",
 643                 node_top = "default:sand",
 644                 depth_top = 1,
 645                 node_filler = "default:sand",
 646                 depth_filler = 3,
 647                 --node_stone = "",
 648                 --node_water_top = "",
 649                 --depth_water_top = ,
 650                 --node_water = "",
 651                 --node_river_water = "",
 652                 y_min = -112,
 653                 y_max = -4,
 654                 heat_point = 60,
 655                 humidity_point = 65,
 656         })
 657
 658         -- Hot
 659
 660         minetest.register_biome({
 661                 name = "desert",
 662                 --node_dust = "",
 663                 node_top = "default:desert_sand",
 664                 depth_top = 1,
 665                 node_filler = "default:desert_sand",
 666                 depth_filler = 1,
 667                 node_stone = "default:desert_stone",
 668                 --node_water_top = "",
 669                 --depth_water_top = ,
 670                 --node_water = "",
 671                 --node_river_water = "",
 672                 y_min = 5,
 673                 y_max = 31000,
 674                 heat_point = 85,
 675                 humidity_point = 20,
 676         })
 677
 678         minetest.register_biome({
 679                 name = "desert_ocean",
 680                 --node_dust = "",
 681                 node_top = "default:sand",
 682                 depth_top = 1,
 683                 node_filler = "default:sand",
 684                 depth_filler = 3,
 685                 node_stone = "default:desert_stone",
 686                 --node_water_top = "",
 687                 --depth_water_top = ,
 688                 --node_water = "",
 689                 --node_river_water = "",
 690                 y_min = -112,
 691                 y_max = 4,
 692                 heat_point = 85,
 693                 humidity_point = 20,
 694         })
 695
 696
 697         minetest.register_biome({
 698                 name = "savanna",
 699                 --node_dust = "",
 700                 node_top = "default:dirt_with_dry_grass",
 701                 depth_top = 1,
 702                 node_filler = "default:dirt",
 703                 depth_filler = 1,
 704                 --node_stone = "",
 705                 --node_water_top = "",
 706                 --depth_water_top = ,
 707                 --node_water = "",
 708                 --node_river_water = "",
 709                 y_min = 1,
 710                 y_max = 31000,
 711                 heat_point = 85,
 712                 humidity_point = 50,
 713         })
 714
 715         minetest.register_biome({
 716                 name = "savanna_swamp",
 717                 --node_dust = "",
 718                 node_top = "default:dirt",
 719                 depth_top = 1,
 720                 node_filler = "default:dirt",
 721                 depth_filler = 3,
 722                 --node_stone = "",
 723                 --node_water_top = "",
 724                 --depth_water_top = ,
 725                 --node_water = "",
 726                 --node_river_water = "",
 727                 y_min = -3,
 728                 y_max = 0,
 729                 heat_point = 85,
 730                 humidity_point = 50,
 731         })
 732
 733         minetest.register_biome({
 734                 name = "savanna_ocean",
 735                 --node_dust = "",
 736                 node_top = "default:sand",
 737                 depth_top = 1,
 738                 node_filler = "default:sand",
 739                 depth_filler = 3,
 740                 --node_stone = "",
 741                 --node_water_top = "",
 742                 --depth_water_top = ,
 743                 --node_water = "",
 744                 --node_river_water = "",
 745                 y_min = -112,
 746                 y_max = -4,
 747                 heat_point = 85,
 748                 humidity_point = 50,
 749         })
 750
 751
 752         minetest.register_biome({
 753                 name = "rainforest",
 754                 --node_dust = "",
 755                 node_top = "default:dirt_with_grass",
 756                 depth_top = 1,
 757                 node_filler = "default:dirt",
 758                 depth_filler = 3,
 759                 --node_stone = "",
 760                 --node_water_top = "",
 761                 --depth_water_top = ,
 762                 --node_water = "",
 763                 --node_river_water = "",
 764                 y_min = 1,
 765                 y_max = 31000,
 766                 heat_point = 85,
 767                 humidity_point = 80,
 768         })
 769
 770         minetest.register_biome({
 771                 name = "rainforest_swamp",
 772                 --node_dust = "",
 773                 node_top = "default:dirt",
 774                 depth_top = 1,
 775                 node_filler = "default:dirt",
 776                 depth_filler = 3,
 777                 --node_stone = "",
 778                 --node_water_top = "",
 779                 --depth_water_top = ,
 780                 --node_water = "",
 781                 --node_river_water = "",
 782                 y_min = -3,
 783                 y_max = 0,
 784                 heat_point = 85,
 785                 humidity_point = 80,
 786         })
 787
 788         minetest.register_biome({
 789                 name = "rainforest_ocean",
 790                 --node_dust = "",
 791                 node_top = "default:sand",
 792                 depth_top = 1,
 793                 node_filler = "default:sand",
 794                 depth_filler = 3,
 795                 --node_stone = "",
 796                 --node_water_top = "",
 797                 --depth_water_top = ,
 798                 --node_water = "",
 799                 --node_river_water = "",
 800                 y_min = -112,
 801                 y_max = -4,
 802                 heat_point = 85,
 803                 humidity_point = 80,
 804         })
 805
 806         -- Underground
 807
 808         minetest.register_biome({
 809                 name = "underground",
 810                 --node_dust = "",
 811                 --node_top = "",
 812                 --depth_top = ,
 813                 --node_filler = "",
 814                 --depth_filler = ,
 815                 --node_stone = "",
 816                 --node_water_top = "",
 817                 --depth_water_top = ,
 818                 --node_water = "",
 819                 --node_river_water = "",
 820                 y_min = -31000,
 821                 y_max = -113,
 822                 heat_point = 50,
 823                 humidity_point = 50,
 824         })
 825 end
 826
 827
 828 --
 829 -- Register decorations
 830 --
 831
 832 -- Mgv6
 833
 834 function default.register_mgv6_decorations()
 835         minetest.clear_registered_decorations()
 836
 837         -- Papyrus
 838
 839         minetest.register_decoration({
 840                 deco_type = "simple",
 841                 place_on = {"default:dirt_with_grass"},
 842                 sidelen = 16,
 843                 noise_params = {
 844                         offset = -0.3,
 845                         scale = 0.7,
 846                         spread = {x = 100, y = 100, z = 100},
 847                         seed = 354,
 848                         octaves = 3,
 849                         persist = 0.7
 850                 },
 851                 y_min = 1,
 852                 y_max = 1,
 853                 decoration = "default:papyrus",
 854                 height = 2,
 855                 height_max = 4,
 856                 spawn_by = "default:water_source",
 857                 num_spawn_by = 1,
 858         })
 859
 860         -- Cacti
 861
 862         minetest.register_decoration({
 863                 deco_type = "simple",
 864                 place_on = {"default:desert_sand"},
 865                 sidelen = 16,
 866                 noise_params = {
 867                         offset = -0.012,
 868                         scale = 0.024,
 869                         spread = {x = 100, y = 100, z = 100},
 870                         seed = 230,
 871                         octaves = 3,
 872                         persist = 0.6
 873                 },
 874                 y_min = 1,
 875                 y_max = 30,
 876                 decoration = "default:cactus",
 877                 height = 3,
 878                 height_max = 4,
 879         })
 880
 881         -- Long grasses
 882
 883         for length = 1, 5 do
 884                 minetest.register_decoration({
 885                         deco_type = "simple",
 886                         place_on = {"default:dirt_with_grass"},
 887                         sidelen = 16,
 888                         noise_params = {
 889                                 offset = 0,
 890                                 scale = 0.007,
 891                                 spread = {x = 100, y = 100, z = 100},
 892                                 seed = 329,
 893                                 octaves = 3,
 894                                 persist = 0.6
 895                         },
 896                         y_min = 1,
 897                         y_max = 30,
 898                         decoration = "default:grass_"..length,
 899                 })
 900         end
 901
 902         -- Dry shrubs
 903
 904         minetest.register_decoration({
 905                 deco_type = "simple",
 906                 place_on = {"default:desert_sand", "default:dirt_with_snow"},
 907                 sidelen = 16,
 908                 noise_params = {
 909                         offset = 0,
 910                         scale = 0.035,
 911                         spread = {x = 100, y = 100, z = 100},
 912                         seed = 329,
 913                         octaves = 3,
 914                         persist = 0.6
 915                 },
 916                 y_min = 1,
 917                 y_max = 30,
 918                 decoration = "default:dry_shrub",
 919         })
 920 end
 921
 922 -- All mapgens except mgv6 and singlenode
 923
 924 local function register_grass_decoration(offset, scale, length)
 925         minetest.register_decoration({
 926                 deco_type = "simple",
 927                 place_on = {"default:dirt_with_grass", "default:sand"},
 928                 sidelen = 16,
 929                 noise_params = {
 930                         offset = offset,
 931                         scale = scale,
 932                         spread = {x = 200, y = 200, z = 200},
 933                         seed = 329,
 934                         octaves = 3,
 935                         persist = 0.6
 936                 },
 937                 biomes = {"stone_grassland", "sandstone_grassland",
 938                         "deciduous_forest", "coniferous_forest",
 939                         "stone_grassland_dunes", "sandstone_grassland_dunes",
 940                         "coniferous_forest_dunes"},
 941                 y_min = 1,
 942                 y_max = 31000,
 943                 decoration = "default:grass_"..length,
 944         })
 945 end
 946
 947 local function register_dry_grass_decoration(offset, scale, length)
 948         minetest.register_decoration({
 949                 deco_type = "simple",
 950                 place_on = {"default:dirt_with_dry_grass"},
 951                 sidelen = 16,
 952                 noise_params = {
 953                         offset = offset,
 954                         scale = scale,
 955                         spread = {x = 200, y = 200, z = 200},
 956                         seed = 329,
 957                         octaves = 3,
 958                         persist = 0.6
 959                 },
 960                 biomes = {"savanna"},
 961                 y_min = 1,
 962                 y_max = 31000,
 963                 decoration = "default:dry_grass_"..length,
 964         })
 965 end
 966
 967 function default.register_decorations()
 968         minetest.clear_registered_decorations()
 969
 970         -- Apple tree and log
 971
 972         minetest.register_decoration({
 973                 deco_type = "schematic",
 974                 place_on = {"default:dirt_with_grass"},
 975                 sidelen = 16,
 976                 noise_params = {
 977                         offset = 0.04,
 978                         scale = 0.02,
 979                         spread = {x = 250, y = 250, z = 250},
 980                         seed = 2,
 981                         octaves = 3,
 982                         persist = 0.66
 983                 },
 984                 biomes = {"deciduous_forest"},
 985                 y_min = 1,
 986                 y_max = 31000,
 987                 schematic = minetest.get_modpath("default").."/schematics/apple_tree.mts",
 988                 flags = "place_center_x, place_center_z",
 989         })
 990
 991         minetest.register_decoration({
 992                 deco_type = "schematic",
 993                 place_on = {"default:dirt_with_grass"},
 994                 sidelen = 80,
 995                 fill_ratio = 0.0015,
 996                 biomes = {"deciduous_forest"},
 997                 y_min = 1,
 998                 y_max = 31000,
 999                 schematic = {
1000                         size = { x = 3, y = 3, z = 1},
1001                         data = {
1002                                 { name = "air", prob = 0 },
1003                                 { name = "air", prob = 0 },
1004                                 { name = "air", prob = 0 },
1005                                 { name = "default:tree", param2 = 12, prob = 191 },
1006                                 { name = "default:tree", param2 = 12 },
1007                                 { name = "default:tree", param2 = 12, prob = 127 },
1008                                 { name = "air", prob = 0 },
1009                                 { name = "flowers:mushroom_brown", prob = 63 },
1010                                 { name = "air", prob = 0 },
1011                         },
1012                 },
1013                 flags = "place_center_x",
1014                 rotation = "random",
1015         })
1016
1017         -- Jungle tree and log
1018
1019         minetest.register_decoration({
1020                 deco_type = "schematic",
1021                 place_on = {"default:dirt_with_grass", "default:dirt"},
1022                 sidelen = 80,
1023                 fill_ratio = 0.09,
1024                 biomes = {"rainforest", "rainforest_swamp"},
1025                 y_min = 0,
1026                 y_max = 31000,
1027                 schematic = minetest.get_modpath("default").."/schematics/jungle_tree.mts",
1028                 flags = "place_center_x, place_center_z",
1029                 rotation = "random",
1030         })
1031
1032         minetest.register_decoration({
1033                 deco_type = "schematic",
1034                 place_on = {"default:dirt_with_grass", "default:dirt"},
1035                 sidelen = 80,
1036                 fill_ratio = 0.01,
1037                 biomes = {"rainforest", "rainforest_swamp"},
1038                 y_min = 1,
1039                 y_max = 31000,
1040                 schematic = {
1041                         size = { x = 3, y = 3, z = 1},
1042                         data = {
1043                                 { name = "air", prob = 0 },
1044                                 { name = "air", prob = 0 },
1045                                 { name = "air", prob = 0 },
1046                                 { name = "default:jungletree", param2 = 12, prob = 191 },
1047                                 { name = "default:jungletree", param2 = 12 },
1048                                 { name = "default:jungletree", param2 = 12, prob = 127 },
1049                                 { name = "air", prob = 0 },
1050                                 { name = "flowers:mushroom_brown", prob = 127 },
1051                                 { name = "air", prob = 0 },
1052                         },
1053                 },
1054                 flags = "place_center_x",
1055                 rotation = "random",
1056         })
1057
1058         -- Taiga and temperate coniferous forest pine tree and log
1059
1060         minetest.register_decoration({
1061                 deco_type = "schematic",
1062                 place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
1063                 sidelen = 16,
1064                 noise_params = {
1065                         offset = 0.04,
1066                         scale = 0.02,
1067                         spread = {x = 250, y = 250, z = 250},
1068                         seed = 2,
1069                         octaves = 3,
1070                         persist = 0.66
1071                 },
1072                 biomes = {"taiga", "coniferous_forest"},
1073                 y_min = 2,
1074                 y_max = 31000,
1075                 schematic = minetest.get_modpath("default").."/schematics/pine_tree.mts",
1076                 flags = "place_center_x, place_center_z",
1077         })
1078
1079         minetest.register_decoration({
1080                 deco_type = "schematic",
1081                 place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
1082                 sidelen = 80,
1083                 fill_ratio = 0.003,
1084                 biomes = {"taiga", "coniferous_forest"},
1085                 y_min = 1,
1086                 y_max = 31000,
1087                 schematic = {
1088                         size = { x = 3, y = 3, z = 1},
1089                         data = {
1090                                 { name = "air", prob = 0 },
1091                                 { name = "air", prob = 0 },
1092                                 { name = "air", prob = 0 },
1093                                 { name = "default:pine_tree", param2 = 12, prob = 191 },
1094                                 { name = "default:pine_tree", param2 = 12 },
1095                                 { name = "default:pine_tree", param2 = 12, prob = 127 },
1096                                 { name = "air", prob = 0 },
1097                                 { name = "flowers:mushroom_red", prob = 127 },
1098                                 { name = "air", prob = 0 },
1099                         },
1100                 },
1101                 flags = "place_center_x",
1102                 rotation = "random",
1103         })
1104
1105         -- Acacia tree and log
1106
1107         minetest.register_decoration({
1108                 deco_type = "schematic",
1109                 place_on = {"default:dirt_with_dry_grass"},
1110                 sidelen = 16,
1111                 noise_params = {
1112                         offset = 0,
1113                         scale = 0.002,
1114                         spread = {x = 250, y = 250, z = 250},
1115                         seed = 2,
1116                         octaves = 3,
1117                         persist = 0.66
1118                 },
1119                 biomes = {"savanna"},
1120                 y_min = 1,
1121                 y_max = 31000,
1122                 schematic = minetest.get_modpath("default").."/schematics/acacia_tree.mts",
1123                 flags = "place_center_x, place_center_z",
1124                 rotation = "random",
1125         })
1126
1127         minetest.register_decoration({
1128                 deco_type = "schematic",
1129                 place_on = {"default:dirt_with_dry_grass"},
1130                 sidelen = 16,
1131                 noise_params = {
1132                         offset = 0,
1133                         scale = 0.001,
1134                         spread = {x = 250, y = 250, z = 250},
1135                         seed = 2,
1136                         octaves = 3,
1137                         persist = 0.66
1138                 },
1139                 biomes = {"savanna"},
1140                 y_min = 1,
1141                 y_max = 31000,
1142                 schematic = {
1143                         size = { x = 3, y = 2, z = 1},
1144                         data = {
1145                                 { name = "air", prob = 0 },
1146                                 { name = "air", prob = 0 },
1147                                 { name = "air", prob = 0 },
1148                                 { name = "default:acacia_tree", param2 = 12, prob = 191 },
1149                                 { name = "default:acacia_tree", param2 = 12 },
1150                                 { name = "default:acacia_tree", param2 = 12, prob = 127 },
1151                         },
1152                 },
1153                 flags = "place_center_x",
1154                 rotation = "random",
1155         })
1156
1157         -- Large cactus
1158
1159         minetest.register_decoration({
1160                 deco_type = "schematic",
1161                 place_on = {"default:desert_sand"},
1162                 sidelen = 16,
1163                 noise_params = {
1164                         offset = -0.0003,
1165                         scale = 0.0009,
1166                         spread = {x = 200, y = 200, z = 200},
1167                         seed = 230,
1168                         octaves = 3,
1169                         persist = 0.6
1170                 },
1171                 biomes = {"desert"},
1172                 y_min = 5,
1173                 y_max = 31000,
1174                 schematic = minetest.get_modpath("default").."/schematics/large_cactus.mts",
1175                 flags = "place_center_x",
1176                 rotation = "random",
1177         })
1178
1179         -- Cactus
1180
1181         minetest.register_decoration({
1182                 deco_type = "simple",
1183                 place_on = {"default:desert_sand"},
1184                 sidelen = 16,
1185                 noise_params = {
1186                         offset = -0.0003,
1187                         scale = 0.0009,
1188                         spread = {x = 200, y = 200, z = 200},
1189                         seed = 230,
1190                         octaves = 3,
1191                         persist = 0.6
1192                 },
1193                 biomes = {"desert"},
1194                 y_min = 5,
1195                 y_max = 31000,
1196                 decoration = "default:cactus",
1197                 height = 2,
1198                 height_max = 5,
1199         })
1200
1201         -- Papyrus
1202
1203         minetest.register_decoration({
1204                 deco_type = "schematic",
1205                 place_on = {"default:dirt"},
1206                 sidelen = 16,
1207                 noise_params = {
1208                         offset = -0.3,
1209                         scale = 0.7,
1210                         spread = {x = 200, y = 200, z = 200},
1211                         seed = 354,
1212                         octaves = 3,
1213                         persist = 0.7
1214                 },
1215                 biomes = {"savanna_swamp"},
1216                 y_min = 0,
1217                 y_max = 0,
1218                 schematic = minetest.get_modpath("default").."/schematics/papyrus.mts",
1219         })
1220
1221         -- Grasses
1222
1223         register_grass_decoration(-0.03,  0.09,  5)
1224         register_grass_decoration(-0.015, 0.075, 4)
1225         register_grass_decoration(0,      0.06,  3)
1226         register_grass_decoration(0.015,  0.045, 2)
1227         register_grass_decoration(0.03,   0.03,  1)
1228
1229         -- Dry grasses
1230
1231         register_dry_grass_decoration(0.01, 0.05,  5)
1232         register_dry_grass_decoration(0.03, 0.03,  4)
1233         register_dry_grass_decoration(0.05, 0.01,  3)
1234         register_dry_grass_decoration(0.07, -0.01, 2)
1235         register_dry_grass_decoration(0.09, -0.03, 1)
1236
1237         -- Junglegrass
1238
1239         minetest.register_decoration({
1240                 deco_type = "simple",
1241                 place_on = {"default:dirt_with_grass"},
1242                 sidelen = 80,
1243                 fill_ratio = 0.1,
1244                 biomes = {"rainforest"},
1245                 y_min = 1,
1246                 y_max = 31000,
1247                 decoration = "default:junglegrass",
1248         })
1249
1250         -- Dry shrub
1251
1252         minetest.register_decoration({
1253                 deco_type = "simple",
1254                 place_on = {"default:desert_sand", "default:dirt_with_snow"},
1255                 sidelen = 16,
1256                 noise_params = {
1257                         offset = 0,
1258                         scale = 0.02,
1259                         spread = {x = 200, y = 200, z = 200},
1260                         seed = 329,
1261                         octaves = 3,
1262                         persist = 0.6
1263                 },
1264                 biomes = {"desert", "tundra"},
1265                 y_min = 2,
1266                 y_max = 31000,
1267                 decoration = "default:dry_shrub",
1268         })
1269 end
1270
1271
1272 --
1273 -- Generate nyan cats
1274 --
1275
1276 -- All mapgens except singlenode
1277
1278 function default.make_nyancat(pos, facedir, length)
1279         local tailvec = {x = 0, y = 0, z = 0}
1280         if facedir == 0 then
1281                 tailvec.z = 1
1282         elseif facedir == 1 then
1283                 tailvec.x = 1
1284         elseif facedir == 2 then
1285                 tailvec.z = -1
1286         elseif facedir == 3 then
1287                 tailvec.x = -1
1288         else
1289                 facedir = 0
1290                 tailvec.z = 1
1291         end
1292         local p = {x = pos.x, y = pos.y, z = pos.z}
1293         minetest.set_node(p, {name = "default:nyancat", param2 = facedir})
1294         for i = 1, length do
1295                 p.x = p.x + tailvec.x
1296                 p.z = p.z + tailvec.z
1297                 minetest.set_node(p, {name = "default:nyancat_rainbow", param2 = facedir})
1298         end
1299 end
1300
1301 function default.generate_nyancats(minp, maxp, seed)
1302         local height_min = -31000
1303         local height_max = -32
1304         if maxp.y < height_min or minp.y > height_max then
1305                 return
1306         end
1307         local y_min = math.max(minp.y, height_min)
1308         local y_max = math.min(maxp.y, height_max)
1309         local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
1310         local pr = PseudoRandom(seed + 9324342)
1311         local max_num_nyancats = math.floor(volume / (16 * 16 * 16))
1312         for i = 1, max_num_nyancats do
1313                 if pr:next(0, 1000) == 0 then
1314                         local x0 = pr:next(minp.x, maxp.x)
1315                         local y0 = pr:next(minp.y, maxp.y)
1316                         local z0 = pr:next(minp.z, maxp.z)
1317                         local p0 = {x = x0, y = y0, z = z0}
1318                         default.make_nyancat(p0, pr:next(0, 3), pr:next(3, 15))
1319                 end
1320         end
1321 end
1322
1323
1324 --
1325 -- Detect mapgen to select functions
1326 --
1327
1328 -- Mods using singlenode mapgen can call these functions to enable
1329 -- the use of minetest.generate_ores or minetest.generate_decorations
1330
1331 local mg_params = minetest.get_mapgen_params()
1332 if mg_params.mgname == "v6" then
1333         default.register_ores()
1334         default.register_mgv6_decorations()
1335         minetest.register_on_generated(default.generate_nyancats)
1336 elseif mg_params.mgname ~= "singlenode" then
1337         default.register_ores()
1338         default.register_biomes()
1339         default.register_decorations()
1340         minetest.register_on_generated(default.generate_nyancats)
1341 end