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_sandstonebrick", "default:sandstonebrick")
  38 minetest.register_alias("mapgen_stair_sandstonebrick", "stairs:stair_sandstonebrick")
  39
  40
  41 --
  42 -- Register ores
  43 --
  44
  45 -- All mapgens except singlenode
  46 -- Blob ore first to avoid other ores inside blobs
  47
  48 function default.register_ores()
  49
  50         -- Clay
  51
  52         minetest.register_ore({
  53                 ore_type        = "blob",
  54                 ore             = "default:clay",
  55                 wherein         = {"default:sand"},
  56                 clust_scarcity  = 16 * 16 * 16,
  57                 clust_size      = 5,
  58                 y_min           = -15,
  59                 y_max           = 0,
  60                 noise_threshold = 0.0,
  61                 noise_params    = {
  62                         offset = 0.5,
  63                         scale = 0.2,
  64                         spread = {x = 5, y = 5, z = 5},
  65                         seed = -316,
  66                         octaves = 1,
  67                         persist = 0.0
  68                 },
  69         })
  70
  71         -- Sand
  72
  73         minetest.register_ore({
  74                 ore_type        = "blob",
  75                 ore             = "default:sand",
  76                 wherein         = {"default:stone", "default:sandstone",
  77                         "default:desert_stone"},
  78                 clust_scarcity  = 16 * 16 * 16,
  79                 clust_size      = 5,
  80                 y_min           = -31,
  81                 y_max           = 4,
  82                 noise_threshold = 0.0,
  83                 noise_params    = {
  84                         offset = 0.5,
  85                         scale = 0.2,
  86                         spread = {x = 5, y = 5, z = 5},
  87                         seed = 2316,
  88                         octaves = 1,
  89                         persist = 0.0
  90                 },
  91         })
  92
  93         -- Dirt
  94
  95         minetest.register_ore({
  96                 ore_type        = "blob",
  97                 ore             = "default:dirt",
  98                 wherein         = {"default:stone", "default:sandstone"},
  99                 clust_scarcity  = 16 * 16 * 16,
 100                 clust_size      = 5,
 101                 y_min           = -31,
 102                 y_max           = 31000,
 103                 noise_threshold = 0.0,
 104                 noise_params    = {
 105                         offset = 0.5,
 106                         scale = 0.2,
 107                         spread = {x = 5, y = 5, z = 5},
 108                         seed = 17676,
 109                         octaves = 1,
 110                         persist = 0.0
 111                 },
 112         })
 113
 114         -- Gravel
 115
 116         minetest.register_ore({
 117                 ore_type        = "blob",
 118                 ore             = "default:gravel",
 119                 wherein         = {"default:stone"},
 120                 clust_scarcity  = 16 * 16 * 16,
 121                 clust_size      = 5,
 122                 y_min           = -31000,
 123                 y_max           = 31000,
 124                 noise_threshold = 0.0,
 125                 noise_params    = {
 126                         offset = 0.5,
 127                         scale = 0.2,
 128                         spread = {x = 5, y = 5, z = 5},
 129                         seed = 766,
 130                         octaves = 1,
 131                         persist = 0.0
 132                 },
 133         })
 134
 135         -- Coal
 136
 137         minetest.register_ore({
 138                 ore_type       = "scatter",
 139                 ore            = "default:stone_with_coal",
 140                 wherein        = "default:stone",
 141                 clust_scarcity = 8 * 8 * 8,
 142                 clust_num_ores = 8,
 143                 clust_size     = 3,
 144                 y_min          = -31000,
 145                 y_max          = 64,
 146         })
 147
 148         minetest.register_ore({
 149                 ore_type       = "scatter",
 150                 ore            = "default:stone_with_coal",
 151                 wherein        = "default:stone",
 152                 clust_scarcity = 24 * 24 * 24,
 153                 clust_num_ores = 27,
 154                 clust_size     = 6,
 155                 y_min          = -31000,
 156                 y_max          = 0,
 157         })
 158
 159         -- Iron
 160
 161         minetest.register_ore({
 162                 ore_type       = "scatter",
 163                 ore            = "default:stone_with_iron",
 164                 wherein        = "default:stone",
 165                 clust_scarcity = 12 * 12 * 12,
 166                 clust_num_ores = 3,
 167                 clust_size     = 2,
 168                 y_min          = -15,
 169                 y_max          = 2,
 170         })
 171
 172         minetest.register_ore({
 173                 ore_type       = "scatter",
 174                 ore            = "default:stone_with_iron",
 175                 wherein        = "default:stone",
 176                 clust_scarcity = 9 * 9 * 9,
 177                 clust_num_ores = 5,
 178                 clust_size     = 3,
 179                 y_min          = -63,
 180                 y_max          = -16,
 181         })
 182
 183         minetest.register_ore({
 184                 ore_type       = "scatter",
 185                 ore            = "default:stone_with_iron",
 186                 wherein        = "default:stone",
 187                 clust_scarcity = 7 * 7 * 7,
 188                 clust_num_ores = 5,
 189                 clust_size     = 3,
 190                 y_min          = -31000,
 191                 y_max          = -64,
 192         })
 193
 194         minetest.register_ore({
 195                 ore_type       = "scatter",
 196                 ore            = "default:stone_with_iron",
 197                 wherein        = "default:stone",
 198                 clust_scarcity = 24 * 24 * 24,
 199                 clust_num_ores = 27,
 200                 clust_size     = 6,
 201                 y_min          = -31000,
 202                 y_max          = -64,
 203         })
 204
 205         --Mese
 206
 207         minetest.register_ore({
 208                 ore_type       = "scatter",
 209                 ore            = "default:stone_with_mese",
 210                 wherein        = "default:stone",
 211                 clust_scarcity = 18 * 18 * 18,
 212                 clust_num_ores = 3,
 213                 clust_size     = 2,
 214                 y_min          = -255,
 215                 y_max          = -64,
 216         })
 217
 218         minetest.register_ore({
 219                 ore_type       = "scatter",
 220                 ore            = "default:stone_with_mese",
 221                 wherein        = "default:stone",
 222                 clust_scarcity = 14 * 14 * 14,
 223                 clust_num_ores = 5,
 224                 clust_size     = 3,
 225                 y_min          = -31000,
 226                 y_max          = -256,
 227         })
 228
 229         minetest.register_ore({
 230                 ore_type       = "scatter",
 231                 ore            = "default:mese",
 232                 wherein        = "default:stone",
 233                 clust_scarcity = 36 * 36 * 36,
 234                 clust_num_ores = 3,
 235                 clust_size     = 2,
 236                 y_min          = -31000,
 237                 y_max          = -1024,
 238         })
 239
 240         -- Gold
 241
 242         minetest.register_ore({
 243                 ore_type       = "scatter",
 244                 ore            = "default:stone_with_gold",
 245                 wherein        = "default:stone",
 246                 clust_scarcity = 15 * 15 * 15,
 247                 clust_num_ores = 3,
 248                 clust_size     = 2,
 249                 y_min          = -255,
 250                 y_max          = -64,
 251         })
 252
 253         minetest.register_ore({
 254                 ore_type       = "scatter",
 255                 ore            = "default:stone_with_gold",
 256                 wherein        = "default:stone",
 257                 clust_scarcity = 13 * 13 * 13,
 258                 clust_num_ores = 5,
 259                 clust_size     = 3,
 260                 y_min          = -31000,
 261                 y_max          = -256,
 262         })
 263
 264         -- Diamond
 265
 266         minetest.register_ore({
 267                 ore_type       = "scatter",
 268                 ore            = "default:stone_with_diamond",
 269                 wherein        = "default:stone",
 270                 clust_scarcity = 17 * 17 * 17,
 271                 clust_num_ores = 4,
 272                 clust_size     = 3,
 273                 y_min          = -255,
 274                 y_max          = -128,
 275         })
 276
 277         minetest.register_ore({
 278                 ore_type       = "scatter",
 279                 ore            = "default:stone_with_diamond",
 280                 wherein        = "default:stone",
 281                 clust_scarcity = 15 * 15 * 15,
 282                 clust_num_ores = 4,
 283                 clust_size     = 3,
 284                 y_min          = -31000,
 285                 y_max          = -256,
 286         })
 287
 288         -- Copper
 289
 290         minetest.register_ore({
 291                 ore_type       = "scatter",
 292                 ore            = "default:stone_with_copper",
 293                 wherein        = "default:stone",
 294                 clust_scarcity = 12 * 12 * 12,
 295                 clust_num_ores = 4,
 296                 clust_size     = 3,
 297                 y_min          = -63,
 298                 y_max          = -16,
 299         })
 300
 301         minetest.register_ore({
 302                 ore_type       = "scatter",
 303                 ore            = "default:stone_with_copper",
 304                 wherein        = "default:stone",
 305                 clust_scarcity = 9 * 9 * 9,
 306                 clust_num_ores = 5,
 307                 clust_size     = 3,
 308                 y_min          = -31000,
 309                 y_max          = -64,
 310         })
 311 end
 312
 313
 314 --
 315 -- Register biomes
 316 --
 317
 318 -- All mapgens except mgv6 and singlenode
 319
 320 function default.register_biomes()
 321         minetest.clear_registered_biomes()
 322
 323         -- Permanent ice
 324
 325         minetest.register_biome({
 326                 name = "glacier",
 327                 node_dust = "default:snowblock",
 328                 node_top = "default:snowblock",
 329                 depth_top = 1,
 330                 node_filler = "default:snowblock",
 331                 depth_filler = 3,
 332                 node_stone = "default:ice",
 333                 node_water_top = "default:ice",
 334                 depth_water_top = 10,
 335                 --node_water = "",
 336                 node_river_water = "default:ice",
 337                 y_min = -8,
 338                 y_max = 31000,
 339                 heat_point = 0,
 340                 humidity_point = 50,
 341         })
 342
 343         minetest.register_biome({
 344                 name = "glacier_ocean",
 345                 node_dust = "default:snowblock",
 346                 node_top = "default:sand",
 347                 depth_top = 1,
 348                 node_filler = "default:sand",
 349                 depth_filler = 3,
 350                 --node_stone = "",
 351                 --node_water_top = "",
 352                 --depth_water_top = ,
 353                 --node_water = "",
 354                 --node_river_water = "",
 355                 y_min = -112,
 356                 y_max = -9,
 357                 heat_point = 0,
 358                 humidity_point = 50,
 359         })
 360
 361         -- Cold
 362
 363         minetest.register_biome({
 364                 name = "tundra",
 365                 --node_dust = "",
 366                 node_top = "default:dirt_with_snow",
 367                 depth_top = 1,
 368                 node_filler = "default:dirt",
 369                 depth_filler = 1,
 370                 --node_stone = "",
 371                 --node_water_top = "",
 372                 --depth_water_top = ,
 373                 --node_water = "",
 374                 --node_river_water = "",
 375                 y_min = 2,
 376                 y_max = 31000,
 377                 heat_point = 15,
 378                 humidity_point = 35,
 379         })
 380
 381         minetest.register_biome({
 382                 name = "tundra_ocean",
 383                 --node_dust = "",
 384                 node_top = "default:sand",
 385                 depth_top = 1,
 386                 node_filler = "default:sand",
 387                 depth_filler = 3,
 388                 --node_stone = "",
 389                 --node_water_top = "",
 390                 --depth_water_top = ,
 391                 --node_water = "",
 392                 --node_river_water = "",
 393                 y_min = -112,
 394                 y_max = 1,
 395                 heat_point = 15,
 396                 humidity_point = 35,
 397         })
 398
 399
 400         minetest.register_biome({
 401                 name = "taiga",
 402                 node_dust = "default:snow",
 403                 node_top = "default:dirt_with_snow",
 404                 depth_top = 1,
 405                 node_filler = "default:dirt",
 406                 depth_filler = 3,
 407                 --node_stone = "",
 408                 --node_water_top = "",
 409                 --depth_water_top = ,
 410                 --node_water = "",
 411                 --node_river_water = "",
 412                 y_min = 2,
 413                 y_max = 31000,
 414                 heat_point = 15,
 415                 humidity_point = 65,
 416         })
 417
 418         minetest.register_biome({
 419                 name = "taiga_ocean",
 420                 --node_dust = "",
 421                 node_top = "default:sand",
 422                 depth_top = 1,
 423                 node_filler = "default:sand",
 424                 depth_filler = 3,
 425                 --node_stone = "",
 426                 --node_water_top = "",
 427                 --depth_water_top = ,
 428                 --node_water = "",
 429                 --node_river_water = "",
 430                 y_min = -112,
 431                 y_max = 1,
 432                 heat_point = 15,
 433                 humidity_point = 65,
 434         })
 435
 436         -- Temperate
 437
 438         minetest.register_biome({
 439                 name = "stone_grassland",
 440                 --node_dust = "",
 441                 node_top = "default:dirt_with_grass",
 442                 depth_top = 1,
 443                 node_filler = "default:dirt",
 444                 depth_filler = 1,
 445                 --node_stone = "",
 446                 --node_water_top = "",
 447                 --depth_water_top = ,
 448                 --node_water = "",
 449                 --node_river_water = "",
 450                 y_min = 6,
 451                 y_max = 31000,
 452                 heat_point = 40,
 453                 humidity_point = 35,
 454         })
 455
 456         minetest.register_biome({
 457                 name = "stone_grassland_dunes",
 458                 --node_dust = "",
 459                 node_top = "default:sand",
 460                 depth_top = 1,
 461                 node_filler = "default:sand",
 462                 depth_filler = 2,
 463                 --node_stone = "",
 464                 --node_water_top = "",
 465                 --depth_water_top = ,
 466                 --node_water = "",
 467                 --node_river_water = "",
 468                 y_min = 5,
 469                 y_max = 5,
 470                 heat_point = 40,
 471                 humidity_point = 35,
 472         })
 473
 474         minetest.register_biome({
 475                 name = "stone_grassland_ocean",
 476                 --node_dust = "",
 477                 node_top = "default:sand",
 478                 depth_top = 1,
 479                 node_filler = "default:sand",
 480                 depth_filler = 3,
 481                 --node_stone = "",
 482                 --node_water_top = "",
 483                 --depth_water_top = ,
 484                 --node_water = "",
 485                 --node_river_water = "",
 486                 y_min = -112,
 487                 y_max = 4,
 488                 heat_point = 40,
 489                 humidity_point = 35,
 490         })
 491
 492
 493         minetest.register_biome({
 494                 name = "coniferous_forest",
 495                 --node_dust = "",
 496                 node_top = "default:dirt_with_grass",
 497                 depth_top = 1,
 498                 node_filler = "default:dirt",
 499                 depth_filler = 3,
 500                 --node_stone = "",
 501                 --node_water_top = "",
 502                 --depth_water_top = ,
 503                 --node_water = "",
 504                 --node_river_water = "",
 505                 y_min = 6,
 506                 y_max = 31000,
 507                 heat_point = 40,
 508                 humidity_point = 65,
 509         })
 510
 511         minetest.register_biome({
 512                 name = "coniferous_forest_dunes",
 513                 --node_dust = "",
 514                 node_top = "default:sand",
 515                 depth_top = 1,
 516                 node_filler = "default:sand",
 517                 depth_filler = 3,
 518                 --node_stone = "",
 519                 --node_water_top = "",
 520                 --depth_water_top = ,
 521                 --node_water = "",
 522                 --node_river_water = "",
 523                 y_min = 5,
 524                 y_max = 5,
 525                 heat_point = 40,
 526                 humidity_point = 65,
 527         })
 528
 529         minetest.register_biome({
 530                 name = "coniferous_forest_ocean",
 531                 --node_dust = "",
 532                 node_top = "default:sand",
 533                 depth_top = 1,
 534                 node_filler = "default:sand",
 535                 depth_filler = 3,
 536                 --node_stone = "",
 537                 --node_water_top = "",
 538                 --depth_water_top = ,
 539                 --node_water = "",
 540                 --node_river_water = "",
 541                 y_min = -112,
 542                 y_max = 4,
 543                 heat_point = 40,
 544                 humidity_point = 65,
 545         })
 546
 547
 548         minetest.register_biome({
 549                 name = "sandstone_grassland",
 550                 --node_dust = "",
 551                 node_top = "default:dirt_with_grass",
 552                 depth_top = 1,
 553                 node_filler = "default:dirt",
 554                 depth_filler = 1,
 555                 node_stone = "default:sandstone",
 556                 --node_water_top = "",
 557                 --depth_water_top = ,
 558                 --node_water = "",
 559                 --node_river_water = "",
 560                 y_min = 6,
 561                 y_max = 31000,
 562                 heat_point = 60,
 563                 humidity_point = 35,
 564         })
 565
 566         minetest.register_biome({
 567                 name = "sandstone_grassland_dunes",
 568                 --node_dust = "",
 569                 node_top = "default:sand",
 570                 depth_top = 1,
 571                 node_filler = "default:sand",
 572                 depth_filler = 2,
 573                 node_stone = "default:sandstone",
 574                 --node_water_top = "",
 575                 --depth_water_top = ,
 576                 --node_water = "",
 577                 --node_river_water = "",
 578                 y_min = 5,
 579                 y_max = 5,
 580                 heat_point = 60,
 581                 humidity_point = 35,
 582         })
 583
 584         minetest.register_biome({
 585                 name = "sandstone_grassland_ocean",
 586                 --node_dust = "",
 587                 node_top = "default:sand",
 588                 depth_top = 1,
 589                 node_filler = "default:sand",
 590                 depth_filler = 3,
 591                 node_stone = "default:sandstone",
 592                 --node_water_top = "",
 593                 --depth_water_top = ,
 594                 --node_water = "",
 595                 --node_river_water = "",
 596                 y_min = -112,
 597                 y_max = 4,
 598                 heat_point = 60,
 599                 humidity_point = 35,
 600         })
 601
 602
 603         minetest.register_biome({
 604                 name = "deciduous_forest",
 605                 --node_dust = "",
 606                 node_top = "default:dirt_with_grass",
 607                 depth_top = 1,
 608                 node_filler = "default:dirt",
 609                 depth_filler = 3,
 610                 --node_stone = "",
 611                 --node_water_top = "",
 612                 --depth_water_top = ,
 613                 --node_water = "",
 614                 --node_river_water = "",
 615                 y_min = 1,
 616                 y_max = 31000,
 617                 heat_point = 60,
 618                 humidity_point = 65,
 619         })
 620
 621         minetest.register_biome({
 622                 name = "deciduous_forest_swamp",
 623                 --node_dust = "",
 624                 node_top = "default:dirt",
 625                 depth_top = 1,
 626                 node_filler = "default:dirt",
 627                 depth_filler = 3,
 628                 --node_stone = "",
 629                 --node_water_top = "",
 630                 --depth_water_top = ,
 631                 --node_water = "",
 632                 --node_river_water = "",
 633                 y_min = -3,
 634                 y_max = 0,
 635                 heat_point = 60,
 636                 humidity_point = 65,
 637         })
 638
 639         minetest.register_biome({
 640                 name = "deciduous_forest_ocean",
 641                 --node_dust = "",
 642                 node_top = "default:sand",
 643                 depth_top = 1,
 644                 node_filler = "default:sand",
 645                 depth_filler = 3,
 646                 --node_stone = "",
 647                 --node_water_top = "",
 648                 --depth_water_top = ,
 649                 --node_water = "",
 650                 --node_river_water = "",
 651                 y_min = -112,
 652                 y_max = -4,
 653                 heat_point = 60,
 654                 humidity_point = 65,
 655         })
 656
 657         -- Hot
 658
 659         minetest.register_biome({
 660                 name = "desert",
 661                 --node_dust = "",
 662                 node_top = "default:desert_sand",
 663                 depth_top = 1,
 664                 node_filler = "default:desert_sand",
 665                 depth_filler = 1,
 666                 node_stone = "default:desert_stone",
 667                 --node_water_top = "",
 668                 --depth_water_top = ,
 669                 --node_water = "",
 670                 --node_river_water = "",
 671                 y_min = 5,
 672                 y_max = 31000,
 673                 heat_point = 85,
 674                 humidity_point = 20,
 675         })
 676
 677         minetest.register_biome({
 678                 name = "desert_ocean",
 679                 --node_dust = "",
 680                 node_top = "default:sand",
 681                 depth_top = 1,
 682                 node_filler = "default:sand",
 683                 depth_filler = 3,
 684                 node_stone = "default:desert_stone",
 685                 --node_water_top = "",
 686                 --depth_water_top = ,
 687                 --node_water = "",
 688                 --node_river_water = "",
 689                 y_min = -112,
 690                 y_max = 4,
 691                 heat_point = 85,
 692                 humidity_point = 20,
 693         })
 694
 695
 696         minetest.register_biome({
 697                 name = "savanna",
 698                 --node_dust = "",
 699                 node_top = "default:dirt_with_dry_grass",
 700                 depth_top = 1,
 701                 node_filler = "default:dirt",
 702                 depth_filler = 1,
 703                 --node_stone = "",
 704                 --node_water_top = "",
 705                 --depth_water_top = ,
 706                 --node_water = "",
 707                 --node_river_water = "",
 708                 y_min = 1,
 709                 y_max = 31000,
 710                 heat_point = 85,
 711                 humidity_point = 50,
 712         })
 713
 714         minetest.register_biome({
 715                 name = "savanna_swamp",
 716                 --node_dust = "",
 717                 node_top = "default:dirt",
 718                 depth_top = 1,
 719                 node_filler = "default:dirt",
 720                 depth_filler = 3,
 721                 --node_stone = "",
 722                 --node_water_top = "",
 723                 --depth_water_top = ,
 724                 --node_water = "",
 725                 --node_river_water = "",
 726                 y_min = -3,
 727                 y_max = 0,
 728                 heat_point = 85,
 729                 humidity_point = 50,
 730         })
 731
 732         minetest.register_biome({
 733                 name = "savanna_ocean",
 734                 --node_dust = "",
 735                 node_top = "default:sand",
 736                 depth_top = 1,
 737                 node_filler = "default:sand",
 738                 depth_filler = 3,
 739                 --node_stone = "",
 740                 --node_water_top = "",
 741                 --depth_water_top = ,
 742                 --node_water = "",
 743                 --node_river_water = "",
 744                 y_min = -112,
 745                 y_max = -4,
 746                 heat_point = 85,
 747                 humidity_point = 50,
 748         })
 749
 750
 751         minetest.register_biome({
 752                 name = "rainforest",
 753                 --node_dust = "",
 754                 node_top = "default:dirt_with_grass",
 755                 depth_top = 1,
 756                 node_filler = "default:dirt",
 757                 depth_filler = 3,
 758                 --node_stone = "",
 759                 --node_water_top = "",
 760                 --depth_water_top = ,
 761                 --node_water = "",
 762                 --node_river_water = "",
 763                 y_min = 1,
 764                 y_max = 31000,
 765                 heat_point = 85,
 766                 humidity_point = 80,
 767         })
 768
 769         minetest.register_biome({
 770                 name = "rainforest_swamp",
 771                 --node_dust = "",
 772                 node_top = "default:dirt",
 773                 depth_top = 1,
 774                 node_filler = "default:dirt",
 775                 depth_filler = 3,
 776                 --node_stone = "",
 777                 --node_water_top = "",
 778                 --depth_water_top = ,
 779                 --node_water = "",
 780                 --node_river_water = "",
 781                 y_min = -3,
 782                 y_max = 0,
 783                 heat_point = 85,
 784                 humidity_point = 80,
 785         })
 786
 787         minetest.register_biome({
 788                 name = "rainforest_ocean",
 789                 --node_dust = "",
 790                 node_top = "default:sand",
 791                 depth_top = 1,
 792                 node_filler = "default:sand",
 793                 depth_filler = 3,
 794                 --node_stone = "",
 795                 --node_water_top = "",
 796                 --depth_water_top = ,
 797                 --node_water = "",
 798                 --node_river_water = "",
 799                 y_min = -112,
 800                 y_max = -4,
 801                 heat_point = 85,
 802                 humidity_point = 80,
 803         })
 804
 805         -- Underground
 806
 807         minetest.register_biome({
 808                 name = "underground",
 809                 --node_dust = "",
 810                 --node_top = "",
 811                 --depth_top = ,
 812                 --node_filler = "",
 813                 --depth_filler = ,
 814                 --node_stone = "",
 815                 --node_water_top = "",
 816                 --depth_water_top = ,
 817                 --node_water = "",
 818                 --node_river_water = "",
 819                 y_min = -31000,
 820                 y_max = -113,
 821                 heat_point = 50,
 822                 humidity_point = 50,
 823         })
 824 end
 825
 826
 827 --
 828 -- Register decorations
 829 --
 830
 831 -- Mgv6
 832
 833 function default.register_mgv6_decorations()
 834         minetest.clear_registered_decorations()
 835
 836         -- Papyrus
 837
 838         minetest.register_decoration({
 839                 deco_type = "simple",
 840                 place_on = {"default:dirt_with_grass"},
 841                 sidelen = 16,
 842                 noise_params = {
 843                         offset = -0.3,
 844                         scale = 0.7,
 845                         spread = {x = 100, y = 100, z = 100},
 846                         seed = 354,
 847                         octaves = 3,
 848                         persist = 0.7
 849                 },
 850                 y_min = 1,
 851                 y_max = 1,
 852                 decoration = "default:papyrus",
 853                 height = 2,
 854                 height_max = 4,
 855                 spawn_by = "default:water_source",
 856                 num_spawn_by = 1,
 857         })
 858
 859         -- Cacti
 860
 861         minetest.register_decoration({
 862                 deco_type = "simple",
 863                 place_on = {"default:desert_sand"},
 864                 sidelen = 16,
 865                 noise_params = {
 866                         offset = -0.012,
 867                         scale = 0.024,
 868                         spread = {x = 100, y = 100, z = 100},
 869                         seed = 230,
 870                         octaves = 3,
 871                         persist = 0.6
 872                 },
 873                 y_min = 1,
 874                 y_max = 30,
 875                 decoration = "default:cactus",
 876                 height = 3,
 877                 height_max = 4,
 878         })
 879
 880         -- Long grasses
 881
 882         for length = 1, 5 do
 883                 minetest.register_decoration({
 884                         deco_type = "simple",
 885                         place_on = {"default:dirt_with_grass"},
 886                         sidelen = 16,
 887                         noise_params = {
 888                                 offset = 0,
 889                                 scale = 0.007,
 890                                 spread = {x = 100, y = 100, z = 100},
 891                                 seed = 329,
 892                                 octaves = 3,
 893                                 persist = 0.6
 894                         },
 895                         y_min = 1,
 896                         y_max = 30,
 897                         decoration = "default:grass_"..length,
 898                 })
 899         end
 900
 901         -- Dry shrubs
 902
 903         minetest.register_decoration({
 904                 deco_type = "simple",
 905                 place_on = {"default:desert_sand", "default:dirt_with_snow"},
 906                 sidelen = 16,
 907                 noise_params = {
 908                         offset = 0,
 909                         scale = 0.035,
 910                         spread = {x = 100, y = 100, z = 100},
 911                         seed = 329,
 912                         octaves = 3,
 913                         persist = 0.6
 914                 },
 915                 y_min = 1,
 916                 y_max = 30,
 917                 decoration = "default:dry_shrub",
 918         })
 919 end
 920
 921 -- All mapgens except mgv6 and singlenode
 922
 923 local function register_grass_decoration(offset, scale, length)
 924         minetest.register_decoration({
 925                 deco_type = "simple",
 926                 place_on = {"default:dirt_with_grass", "default:sand"},
 927                 sidelen = 16,
 928                 noise_params = {
 929                         offset = offset,
 930                         scale = scale,
 931                         spread = {x = 200, y = 200, z = 200},
 932                         seed = 329,
 933                         octaves = 3,
 934                         persist = 0.6
 935                 },
 936                 biomes = {"stone_grassland", "sandstone_grassland",
 937                         "deciduous_forest", "coniferous_forest",
 938                         "stone_grassland_dunes", "sandstone_grassland_dunes",
 939                         "coniferous_forest_dunes"},
 940                 y_min = 1,
 941                 y_max = 31000,
 942                 decoration = "default:grass_"..length,
 943         })
 944 end
 945
 946 local function register_dry_grass_decoration(offset, scale, length)
 947         minetest.register_decoration({
 948                 deco_type = "simple",
 949                 place_on = {"default:dirt_with_dry_grass"},
 950                 sidelen = 16,
 951                 noise_params = {
 952                         offset = offset,
 953                         scale = scale,
 954                         spread = {x = 200, y = 200, z = 200},
 955                         seed = 329,
 956                         octaves = 3,
 957                         persist = 0.6
 958                 },
 959                 biomes = {"savanna"},
 960                 y_min = 1,
 961                 y_max = 31000,
 962                 decoration = "default:dry_grass_"..length,
 963         })
 964 end
 965
 966 function default.register_decorations()
 967         minetest.clear_registered_decorations()
 968
 969         -- Apple tree
 970
 971         minetest.register_decoration({
 972                 deco_type = "schematic",
 973                 place_on = {"default:dirt_with_grass"},
 974                 sidelen = 16,
 975                 noise_params = {
 976                         offset = 0.04,
 977                         scale = 0.02,
 978                         spread = {x = 250, y = 250, z = 250},
 979                         seed = 2,
 980                         octaves = 3,
 981                         persist = 0.66
 982                 },
 983                 biomes = {"deciduous_forest"},
 984                 y_min = 1,
 985                 y_max = 31000,
 986                 schematic = minetest.get_modpath("default").."/schematics/apple_tree.mts",
 987                 flags = "place_center_x, place_center_z",
 988         })
 989
 990         -- Jungle tree
 991
 992         minetest.register_decoration({
 993                 deco_type = "schematic",
 994                 place_on = {"default:dirt_with_grass", "default:dirt"},
 995                 sidelen = 80,
 996                 fill_ratio = 0.09,
 997                 biomes = {"rainforest", "rainforest_swamp"},
 998                 y_min = 0,
 999                 y_max = 31000,
1000                 schematic = minetest.get_modpath("default").."/schematics/jungle_tree.mts",
1001                 flags = "place_center_x, place_center_z",
1002                 rotation = "random",
1003         })
1004
1005         -- Taiga and temperate coniferous forest pine tree
1006
1007         minetest.register_decoration({
1008                 deco_type = "schematic",
1009                 place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
1010                 sidelen = 16,
1011                 noise_params = {
1012                         offset = 0.04,
1013                         scale = 0.02,
1014                         spread = {x = 250, y = 250, z = 250},
1015                         seed = 2,
1016                         octaves = 3,
1017                         persist = 0.66
1018                 },
1019                 biomes = {"taiga", "coniferous_forest"},
1020                 y_min = 2,
1021                 y_max = 31000,
1022                 schematic = minetest.get_modpath("default").."/schematics/pine_tree.mts",
1023                 flags = "place_center_x, place_center_z",
1024         })
1025
1026         -- Acacia tree
1027
1028         minetest.register_decoration({
1029                 deco_type = "schematic",
1030                 place_on = {"default:dirt_with_dry_grass"},
1031                 sidelen = 16,
1032                 noise_params = {
1033                         offset = 0,
1034                         scale = 0.002,
1035                         spread = {x = 250, y = 250, z = 250},
1036                         seed = 2,
1037                         octaves = 3,
1038                         persist = 0.66
1039                 },
1040                 biomes = {"savanna"},
1041                 y_min = 1,
1042                 y_max = 31000,
1043                 schematic = minetest.get_modpath("default").."/schematics/acacia_tree.mts",
1044                 flags = "place_center_x, place_center_z",
1045                 rotation = "random",
1046         })
1047
1048         -- Large cactus
1049
1050         minetest.register_decoration({
1051                 deco_type = "schematic",
1052                 place_on = {"default:desert_sand"},
1053                 sidelen = 16,
1054                 noise_params = {
1055                         offset = -0.0003,
1056                         scale = 0.0009,
1057                         spread = {x = 200, y = 200, z = 200},
1058                         seed = 230,
1059                         octaves = 3,
1060                         persist = 0.6
1061                 },
1062                 biomes = {"desert"},
1063                 y_min = 5,
1064                 y_max = 31000,
1065                 schematic = minetest.get_modpath("default").."/schematics/large_cactus.mts",
1066                 flags = "place_center_x",
1067                 rotation = "random",
1068         })
1069
1070         -- Cactus
1071
1072         minetest.register_decoration({
1073                 deco_type = "simple",
1074                 place_on = {"default:desert_sand"},
1075                 sidelen = 16,
1076                 noise_params = {
1077                         offset = -0.0003,
1078                         scale = 0.0009,
1079                         spread = {x = 200, y = 200, z = 200},
1080                         seed = 230,
1081                         octaves = 3,
1082                         persist = 0.6
1083                 },
1084                 biomes = {"desert"},
1085                 y_min = 5,
1086                 y_max = 31000,
1087                 decoration = "default:cactus",
1088                 height = 2,
1089                 height_max = 5,
1090         })
1091
1092         -- Papyrus
1093
1094         minetest.register_decoration({
1095                 deco_type = "schematic",
1096                 place_on = {"default:dirt"},
1097                 sidelen = 16,
1098                 noise_params = {
1099                         offset = -0.3,
1100                         scale = 0.7,
1101                         spread = {x = 200, y = 200, z = 200},
1102                         seed = 354,
1103                         octaves = 3,
1104                         persist = 0.7
1105                 },
1106                 biomes = {"savanna_swamp"},
1107                 y_min = 0,
1108                 y_max = 0,
1109                 schematic = minetest.get_modpath("default").."/schematics/papyrus.mts",
1110         })
1111
1112         -- Grasses
1113
1114         register_grass_decoration(-0.03,  0.09,  5)
1115         register_grass_decoration(-0.015, 0.075, 4)
1116         register_grass_decoration(0,      0.06,  3)
1117         register_grass_decoration(0.015,  0.045, 2)
1118         register_grass_decoration(0.03,   0.03,  1)
1119
1120         -- Dry grasses
1121
1122         register_dry_grass_decoration(0.01, 0.05,  5)
1123         register_dry_grass_decoration(0.03, 0.03,  4)
1124         register_dry_grass_decoration(0.05, 0.01,  3)
1125         register_dry_grass_decoration(0.07, -0.01, 2)
1126         register_dry_grass_decoration(0.09, -0.03, 1)
1127
1128         -- Junglegrass
1129
1130         minetest.register_decoration({
1131                 deco_type = "simple",
1132                 place_on = {"default:dirt_with_grass"},
1133                 sidelen = 80,
1134                 fill_ratio = 0.1,
1135                 biomes = {"rainforest"},
1136                 y_min = 1,
1137                 y_max = 31000,
1138                 decoration = "default:junglegrass",
1139         })
1140
1141         -- Dry shrub
1142
1143         minetest.register_decoration({
1144                 deco_type = "simple",
1145                 place_on = {"default:desert_sand", "default:dirt_with_snow"},
1146                 sidelen = 16,
1147                 noise_params = {
1148                         offset = 0,
1149                         scale = 0.02,
1150                         spread = {x = 200, y = 200, z = 200},
1151                         seed = 329,
1152                         octaves = 3,
1153                         persist = 0.6
1154                 },
1155                 biomes = {"desert", "tundra"},
1156                 y_min = 2,
1157                 y_max = 31000,
1158                 decoration = "default:dry_shrub",
1159         })
1160 end
1161
1162
1163 --
1164 -- Generate nyan cats
1165 --
1166
1167 -- All mapgens except singlenode
1168
1169 function default.make_nyancat(pos, facedir, length)
1170         local tailvec = {x = 0, y = 0, z = 0}
1171         if facedir == 0 then
1172                 tailvec.z = 1
1173         elseif facedir == 1 then
1174                 tailvec.x = 1
1175         elseif facedir == 2 then
1176                 tailvec.z = -1
1177         elseif facedir == 3 then
1178                 tailvec.x = -1
1179         else
1180                 facedir = 0
1181                 tailvec.z = 1
1182         end
1183         local p = {x = pos.x, y = pos.y, z = pos.z}
1184         minetest.set_node(p, {name = "default:nyancat", param2 = facedir})
1185         for i = 1, length do
1186                 p.x = p.x + tailvec.x
1187                 p.z = p.z + tailvec.z
1188                 minetest.set_node(p, {name = "default:nyancat_rainbow", param2 = facedir})
1189         end
1190 end
1191
1192 function default.generate_nyancats(minp, maxp, seed)
1193         local height_min = -31000
1194         local height_max = -32
1195         if maxp.y < height_min or minp.y > height_max then
1196                 return
1197         end
1198         local y_min = math.max(minp.y, height_min)
1199         local y_max = math.min(maxp.y, height_max)
1200         local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
1201         local pr = PseudoRandom(seed + 9324342)
1202         local max_num_nyancats = math.floor(volume / (16 * 16 * 16))
1203         for i = 1, max_num_nyancats do
1204                 if pr:next(0, 1000) == 0 then
1205                         local x0 = pr:next(minp.x, maxp.x)
1206                         local y0 = pr:next(minp.y, maxp.y)
1207                         local z0 = pr:next(minp.z, maxp.z)
1208                         local p0 = {x = x0, y = y0, z = z0}
1209                         default.make_nyancat(p0, pr:next(0, 3), pr:next(3, 15))
1210                 end
1211         end
1212 end
1213
1214
1215 --
1216 -- Detect mapgen to select functions
1217 --
1218
1219 -- Mods using singlenode mapgen can call these functions to enable
1220 -- the use of minetest.generate_ores or minetest.generate_decorations
1221
1222 local mg_params = minetest.get_mapgen_params()
1223 if mg_params.mgname == "v6" then
1224         default.register_ores()
1225         default.register_mgv6_decorations()
1226         minetest.register_on_generated(default.generate_nyancats)
1227 elseif mg_params.mgname ~= "singlenode" then
1228         default.register_ores()
1229         default.register_biomes()
1230         default.register_decorations()
1231         minetest.register_on_generated(default.generate_nyancats)
1232 end