share/builtin/builtin.lua

   1 --
   2 -- This file contains built-in stuff in Minetest implemented in Lua.
   3 --
   4 -- It is always loaded and executed after registration of the C API,
   5 -- before loading and running any mods.
   6 --
   7
   8 --
   9 -- Override some Lua library functions
  10 --
  11
  12 print = minetest.debug
  13
  14 --
  15 --
  16 --
  17
  18 function basic_dump2(o)
  19         if type(o) == "number" then
  20                 return tostring(o)
  21         elseif type(o) == "string" then
  22                 return string.format("%q", o)
  23         elseif type(o) == "boolean" then
  24                 return tostring(o)
  25         elseif type(o) == "function" then
  26                 return "<function>"
  27         elseif type(o) == "userdata" then
  28                 return "<userdata>"
  29         elseif type(o) == "nil" then
  30                 return "nil"
  31         else
  32                 error("cannot dump a " .. type(o))
  33                 return nil
  34         end
  35 end
  36
  37 function dump2(o, name, dumped)
  38         name = name or "_"
  39         dumped = dumped or {}
  40         io.write(name, " = ")
  41         if type(o) == "number" or type(o) == "string" or type(o) == "boolean"
  42                         or type(o) == "function" or type(o) == "nil"
  43                         or type(o) == "userdata" then
  44                 io.write(basic_dump2(o), "\n")
  45         elseif type(o) == "table" then
  46                 if dumped[o] then
  47                         io.write(dumped[o], "\n")
  48                 else
  49                         dumped[o] = name
  50                         io.write("{}\n") -- new table
  51                         for k,v in pairs(o) do
  52                                 local fieldname = string.format("%s[%s]", name, basic_dump2(k))
  53                                 dump2(v, fieldname, dumped)
  54                         end
  55                 end
  56         else
  57                 error("cannot dump a " .. type(o))
  58                 return nil
  59         end
  60 end
  61
  62 function dump(o, dumped)
  63         dumped = dumped or {}
  64         if type(o) == "number" then
  65                 return tostring(o)
  66         elseif type(o) == "string" then
  67                 return string.format("%q", o)
  68         elseif type(o) == "table" then
  69                 if dumped[o] then
  70                         return "<circular reference>"
  71                 end
  72                 dumped[o] = true
  73                 local t = {}
  74                 for k,v in pairs(o) do
  75                         t[#t+1] = "" .. k .. " = " .. dump(v, dumped)
  76                 end
  77                 return "{" .. table.concat(t, ", ") .. "}"
  78         elseif type(o) == "boolean" then
  79                 return tostring(o)
  80         elseif type(o) == "function" then
  81                 return "<function>"
  82         elseif type(o) == "userdata" then
  83                 return "<userdata>"
  84         elseif type(o) == "nil" then
  85                 return "nil"
  86         else
  87                 error("cannot dump a " .. type(o))
  88                 return nil
  89         end
  90 end
  91
  92 --
  93 -- Item definition helpers
  94 --
  95
  96 function minetest.inventorycube(img1, img2, img3)
  97         img2 = img2 or img1
  98         img3 = img3 or img1
  99         return "[inventorycube"
 100                         .. "{" .. img1:gsub("%^", "&")
 101                         .. "{" .. img2:gsub("%^", "&")
 102                         .. "{" .. img3:gsub("%^", "&")
 103 end
 104
 105 function minetest.pos_to_string(pos)
 106         return "(" .. pos.x .. "," .. pos.y .. "," .. pos.z .. ")"
 107 end
 108
 109 function minetest.get_pointed_thing_position(pointed_thing, above)
 110         if pointed_thing.type == "node" then
 111                 if above then
 112                         -- The position where a node would be placed
 113                         return pointed_thing.above
 114                 else
 115                         -- The position where a node would be dug
 116                         return pointed_thing.under
 117                 end
 118         elseif pointed_thing.type == "object" then
 119                 obj = pointed_thing.ref
 120                 if obj ~= nil then
 121                         return obj:getpos()
 122                 else
 123                         return nil
 124                 end
 125         else
 126                 return nil
 127         end
 128 end
 129
 130 function minetest.dir_to_facedir(dir)
 131         if math.abs(dir.x) > math.abs(dir.z) then
 132                 if dir.x < 0 then
 133                         return 3
 134                 else
 135                         return 1
 136                 end
 137         else
 138                 if dir.z < 0 then
 139                         return 2
 140                 else
 141                         return 0
 142                 end
 143         end
 144 end
 145
 146 function minetest.dir_to_wallmounted(dir)
 147         if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then
 148                 if dir.y < 0 then
 149                         return 1
 150                 else
 151                         return 0
 152                 end
 153         elseif math.abs(dir.x) > math.abs(dir.z) then
 154                 if dir.x < 0 then
 155                         return 3
 156                 else
 157                         return 2
 158                 end
 159         else
 160                 if dir.z < 0 then
 161                         return 5
 162                 else
 163                         return 4
 164                 end
 165         end
 166 end
 167
 168 function minetest.get_node_drops(nodename, toolname)
 169         local drop = ItemStack({name=nodename}):get_definition().drop
 170         if drop == nil then
 171                 -- default drop
 172                 return {ItemStack({name=nodename})}
 173         elseif type(drop) == "string" then
 174                 -- itemstring drop
 175                 return {ItemStack(drop)}
 176         elseif drop.items == nil then
 177                 -- drop = {} to disable default drop
 178                 return {}
 179         end
 180
 181         -- Extended drop table
 182         local got_items = {}
 183         local got_count = 0
 184         local _, item, tool
 185         for _, item in ipairs(drop.items) do
 186                 local good_rarity = true
 187                 local good_tool = true
 188                 if item.rarity ~= nil then
 189                         good_rarity = item.rarity < 1 or math.random(item.rarity) == 1
 190                 end
 191                 if item.tools ~= nil then
 192                         good_tool = false
 193                         for _, tool in ipairs(item.tools) do
 194                                 if tool:sub(1, 1) == '~' then
 195                                         good_tool = toolname:find(tool:sub(2)) ~= nil
 196                                 else
 197                                         good_tool = toolname == tool
 198                                 end
 199                                 if good_tool then
 200                                         break
 201                                 end
 202                         end
 203                 end
 204                 if good_rarity and good_tool then
 205                         got_count = got_count + 1
 206                         for _, add_item in ipairs(item.items) do
 207                                 got_items[#got_items+1] = add_item
 208                         end
 209                         if drop.max_items ~= nil and got_count == drop.max_items then
 210                                 break
 211                         end
 212                 end
 213         end
 214         return got_items
 215 end
 216
 217 function minetest.item_place_node(itemstack, placer, pointed_thing)
 218         local item = itemstack:peek_item()
 219         local def = itemstack:get_definition()
 220         if def.type == "node" and pointed_thing.type == "node" then
 221                 local pos = pointed_thing.above
 222                 local oldnode = minetest.env:get_node(pos)
 223                 local olddef = ItemStack({name=oldnode.name}):get_definition()
 224
 225                 if not olddef.buildable_to then
 226                         minetest.log("info", placer:get_player_name() .. " tried to place"
 227                                 .. " node in invalid position " .. minetest.pos_to_string(pos)
 228                                 .. ", replacing " .. oldnode.name)
 229                         return
 230                 end
 231
 232                 minetest.log("action", placer:get_player_name() .. " places node "
 233                         .. def.name .. " at " .. minetest.pos_to_string(pos))
 234
 235                 local newnode = {name = def.name, param1 = 0, param2 = 0}
 236
 237                 -- Calculate direction for wall mounted stuff like torches and signs
 238                 if def.paramtype2 == 'wallmounted' then
 239                         local under = pointed_thing.under
 240                         local above = pointed_thing.above
 241                         local dir = {x = under.x - above.x, y = under.y - above.y, z = under.z - above.z}
 242                         newnode.param2 = minetest.dir_to_wallmounted(dir)
 243                 -- Calculate the direction for furnaces and chests and stuff
 244                 elseif def.paramtype2 == 'facedir' then
 245                         local playerpos = placer:getpos()
 246                         local dir = {x = pos.x - playerpos.x, y = pos.y - playerpos.y, z = pos.z - playerpos.z}
 247                         newnode.param2 = minetest.dir_to_facedir(dir)
 248                         minetest.log("action", "facedir: " .. newnode.param2)
 249                 end
 250
 251                 -- Add node and update
 252                 minetest.env:add_node(pos, newnode)
 253
 254                 -- Set metadata owner
 255                 if def.metadata_name ~= "" then
 256                         minetest.env:get_meta(pos):set_owner(placer:get_player_name())
 257                 end
 258
 259                 -- Run script hook
 260                 local _, callback
 261                 for _, callback in ipairs(minetest.registered_on_placenodes) do
 262                         callback(pos, newnode, placer)
 263                 end
 264
 265                 itemstack:take_item()
 266         end
 267         return itemstack
 268 end
 269
 270 function minetest.item_place_object(itemstack, placer, pointed_thing)
 271         local pos = minetest.get_pointed_thing_position(pointed_thing, true)
 272         if pos ~= nil then
 273                 local item = itemstack:take_item()
 274                 minetest.env:add_item(pos, item)
 275         end
 276         return itemstack
 277 end
 278
 279 function minetest.item_place(itemstack, placer, pointed_thing)
 280         if itemstack:get_definition().type == "node" then
 281                 return minetest.item_place_node(itemstack, placer, pointed_thing)
 282         else
 283                 return minetest.item_place_object(itemstack, placer, pointed_thing)
 284         end
 285 end
 286
 287 function minetest.item_drop(itemstack, dropper, pos)
 288         minetest.env:add_item(pos, itemstack)
 289         return ""
 290 end
 291
 292 function minetest.item_eat(hp_change, replace_with_item)
 293         return function(itemstack, user, pointed_thing)  -- closure
 294                 if itemstack:take_item() ~= nil then
 295                         user:set_hp(user:get_hp() + hp_change)
 296                         itemstack:add_item(replace_with_item) -- note: replace_with_item is optional
 297                 end
 298                 return itemstack
 299         end
 300 end
 301
 302 function minetest.node_punch(pos, node, puncher)
 303         -- Run script hook
 304         local _, callback
 305         for _, callback in ipairs(minetest.registered_on_punchnodes) do
 306                 callback(pos, node, puncher)
 307         end
 308
 309 end
 310
 311 function minetest.node_dig(pos, node, digger)
 312         minetest.debug("node_dig")
 313
 314         local def = ItemStack({name=node.name}):get_definition()
 315         if not def.diggable then
 316                 minetest.debug("not diggable")
 317                 minetest.log("info", digger:get_player_name() .. " tried to dig "
 318                         .. node.name .. " which is not diggable "
 319                         .. minetest.pos_to_string(pos))
 320                 return
 321         end
 322
 323         local meta = minetest.env:get_meta(pos)
 324         if meta ~= nil and not meta:get_allow_removal() then
 325                 minetest.debug("dig prevented by metadata")
 326                 minetest.log("info", digger:get_player_name() .. " tried to dig "
 327                         .. node.name .. ", but removal is disabled by metadata "
 328                         .. minetest.pos_to_string(pos))
 329                 return
 330         end
 331
 332         minetest.log('action', digger:get_player_name() .. " digs "
 333                 .. node.name .. " at " .. minetest.pos_to_string(pos))
 334
 335         if not minetest.setting_getbool("creative_mode") then
 336                 local wielded = digger:get_wielded_item()
 337                 local drops = minetest.get_node_drops(node.name, wielded:get_name())
 338
 339                 -- Wear out tool
 340                 tp = wielded:get_tool_capabilities()
 341                 dp = minetest.get_dig_params(def.groups, tp)
 342                 wielded:add_wear(dp.wear)
 343                 digger:set_wielded_item(wielded)
 344
 345                 -- Add dropped items
 346                 local _, dropped_item
 347                 for _, dropped_item in ipairs(drops) do
 348                         digger:get_inventory():add_item("main", dropped_item)
 349                 end
 350         end
 351
 352         -- Remove node and update
 353         minetest.env:remove_node(pos)
 354
 355         -- Run script hook
 356         local _, callback
 357         for _, callback in ipairs(minetest.registered_on_dignodes) do
 358                 callback(pos, node, digger)
 359         end
 360 end
 361
 362 --
 363 -- Item definition defaults
 364 --
 365
 366 minetest.nodedef_default = {
 367         -- Item properties
 368         type="node",
 369         -- name intentionally not defined here
 370         description = "",
 371         groups = {},
 372         inventory_image = "",
 373         wield_image = "",
 374         wield_scale = {x=1,y=1,z=1},
 375         stack_max = 99,
 376         usable = false,
 377         liquids_pointable = false,
 378         tool_capabilities = nil,
 379
 380         -- Interaction callbacks
 381         on_place = minetest.item_place,
 382         on_drop = minetest.item_drop,
 383         on_use = nil,
 384
 385         on_punch = minetest.node_punch,
 386         on_dig = minetest.node_dig,
 387
 388         -- Node properties
 389         drawtype = "normal",
 390         visual_scale = 1.0,
 391         tile_images = {""},
 392         special_materials = {
 393                 {image="", backface_culling=true},
 394                 {image="", backface_culling=true},
 395         },
 396         alpha = 255,
 397         post_effect_color = {a=0, r=0, g=0, b=0},
 398         paramtype = "none",
 399         paramtype2 = "none",
 400         is_ground_content = false,
 401         sunlight_propagates = false,
 402         walkable = true,
 403         pointable = true,
 404         diggable = true,
 405         climbable = false,
 406         buildable_to = false,
 407         metadata_name = "",
 408         liquidtype = "none",
 409         liquid_alternative_flowing = "",
 410         liquid_alternative_source = "",
 411         liquid_viscosity = 0,
 412         light_source = 0,
 413         damage_per_second = 0,
 414         selection_box = {type="regular"},
 415         legacy_facedir_simple = false,
 416         legacy_wallmounted = false,
 417 }
 418
 419 minetest.craftitemdef_default = {
 420         type="craft",
 421         -- name intentionally not defined here
 422         description = "",
 423         groups = {},
 424         inventory_image = "",
 425         wield_image = "",
 426         wield_scale = {x=1,y=1,z=1},
 427         stack_max = 99,
 428         liquids_pointable = false,
 429         tool_capabilities = nil,
 430
 431         -- Interaction callbacks
 432         on_place = minetest.item_place,
 433         on_drop = minetest.item_drop,
 434         on_use = nil,
 435 }
 436
 437 minetest.tooldef_default = {
 438         type="tool",
 439         -- name intentionally not defined here
 440         description = "",
 441         groups = {},
 442         inventory_image = "",
 443         wield_image = "",
 444         wield_scale = {x=1,y=1,z=1},
 445         stack_max = 1,
 446         liquids_pointable = false,
 447         tool_capabilities = nil,
 448
 449         -- Interaction callbacks
 450         on_place = minetest.item_place,
 451         on_drop = minetest.item_drop,
 452         on_use = nil,
 453 }
 454
 455 minetest.noneitemdef_default = {  -- This is used for the hand and unknown items
 456         type="none",
 457         -- name intentionally not defined here
 458         description = "",
 459         groups = {},
 460         inventory_image = "",
 461         wield_image = "",
 462         wield_scale = {x=1,y=1,z=1},
 463         stack_max = 99,
 464         liquids_pointable = false,
 465         tool_capabilities = nil,
 466
 467         -- Interaction callbacks
 468         on_place = nil,
 469         on_drop = nil,
 470         on_use = nil,
 471 }
 472
 473 --
 474 -- Make raw registration functions inaccessible to anyone except builtin.lua
 475 --
 476
 477 local register_item_raw = minetest.register_item_raw
 478 minetest.register_item_raw = nil
 479
 480 local register_alias_raw = minetest.register_alias_raw
 481 minetest.register_item_raw = nil
 482
 483 --
 484 -- Item / entity / ABM registration functions
 485 --
 486
 487 minetest.registered_abms = {}
 488 minetest.registered_entities = {}
 489 minetest.registered_items = {}
 490 minetest.registered_nodes = {}
 491 minetest.registered_craftitems = {}
 492 minetest.registered_tools = {}
 493 minetest.registered_aliases = {}
 494
 495 -- For tables that are indexed by item name:
 496 -- If table[X] does not exist, default to table[minetest.registered_aliases[X]]
 497 local function set_alias_metatable(table)
 498         setmetatable(table, {
 499                 __index = function(name)
 500                         return rawget(table, minetest.registered_aliases[name])
 501                 end
 502         })
 503 end
 504 set_alias_metatable(minetest.registered_items)
 505 set_alias_metatable(minetest.registered_nodes)
 506 set_alias_metatable(minetest.registered_craftitems)
 507 set_alias_metatable(minetest.registered_tools)
 508
 509 -- These item names may not be used because they would interfere
 510 -- with legacy itemstrings
 511 local forbidden_item_names = {
 512         MaterialItem = true,
 513         MaterialItem2 = true,
 514         MaterialItem3 = true,
 515         NodeItem = true,
 516         node = true,
 517         CraftItem = true,
 518         craft = true,
 519         MBOItem = true,
 520         ToolItem = true,
 521         tool = true,
 522 }
 523
 524 local function check_modname_prefix(name)
 525         if name:sub(1,1) == ":" then
 526                 -- Escape the modname prefix enforcement mechanism
 527                 return name:sub(2)
 528         else
 529                 -- Modname prefix enforcement
 530                 local expected_prefix = minetest.get_current_modname() .. ":"
 531                 if name:sub(1, #expected_prefix) ~= expected_prefix then
 532                         error("Name " .. name .. " does not follow naming conventions: " ..
 533                                 "\"modname:\" or \":\" prefix required")
 534                 end
 535                 local subname = name:sub(#expected_prefix+1)
 536                 if subname:find("[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]") then
 537                         error("Name " .. name .. " does not follow naming conventions: " ..
 538                                 "contains unallowed characters")
 539                 end
 540                 return name
 541         end
 542 end
 543
 544 function minetest.register_abm(spec)
 545         -- Add to minetest.registered_abms
 546         minetest.registered_abms[#minetest.registered_abms+1] = spec
 547 end
 548
 549 function minetest.register_entity(name, prototype)
 550         -- Check name
 551         if name == nil then
 552                 error("Unable to register entity: Name is nil")
 553         end
 554         name = check_modname_prefix(tostring(name))
 555
 556         prototype.name = name
 557         prototype.__index = prototype  -- so that it can be used as a metatable
 558
 559         -- Add to minetest.registered_entities
 560         minetest.registered_entities[name] = prototype
 561 end
 562
 563 function minetest.register_item(name, itemdef)
 564         -- Check name
 565         if name == nil then
 566                 error("Unable to register item: Name is nil")
 567         end
 568         name = check_modname_prefix(tostring(name))
 569         if forbidden_item_names[name] then
 570                 error("Unable to register item: Name is forbidden: " .. name)
 571         end
 572         itemdef.name = name
 573
 574         -- Apply defaults and add to registered_* table
 575         if itemdef.type == "node" then
 576                 setmetatable(itemdef, {__index = minetest.nodedef_default})
 577                 minetest.registered_nodes[itemdef.name] = itemdef
 578         elseif itemdef.type == "craft" then
 579                 setmetatable(itemdef, {__index = minetest.craftitemdef_default})
 580                 minetest.registered_craftitems[itemdef.name] = itemdef
 581         elseif itemdef.type == "tool" then
 582                 setmetatable(itemdef, {__index = minetest.tooldef_default})
 583                 minetest.registered_tools[itemdef.name] = itemdef
 584         elseif itemdef.type == "none" then
 585                 setmetatable(itemdef, {__index = minetest.noneitemdef_default})
 586         else
 587                 error("Unable to register item: Type is invalid: " .. dump(itemdef))
 588         end
 589
 590         -- Flowing liquid uses param2
 591         if itemdef.type == "node" and itemdef.liquidtype == "flowing" then
 592                 itemdef.paramtype2 = "flowingliquid"
 593         end
 594
 595         -- BEGIN Legacy stuff
 596         if itemdef.cookresult_itemstring ~= nil and itemdef.cookresult_itemstring ~= "" then
 597                 minetest.register_craft({
 598                         type="cooking",
 599                         output=itemdef.cookresult_itemstring,
 600                         recipe=itemdef.name,
 601                         cooktime=itemdef.furnace_cooktime
 602                 })
 603         end
 604         if itemdef.furnace_burntime ~= nil and itemdef.furnace_burntime >= 0 then
 605                 minetest.register_craft({
 606                         type="fuel",
 607                         recipe=itemdef.name,
 608                         burntime=itemdef.furnace_burntime
 609                 })
 610         end
 611         -- END Legacy stuff
 612
 613         -- Disable all further modifications
 614         getmetatable(itemdef).__newindex = {}
 615
 616         --minetest.log("Registering item: " .. itemdef.name)
 617         minetest.registered_items[itemdef.name] = itemdef
 618         minetest.registered_aliases[itemdef.name] = nil
 619         register_item_raw(itemdef)
 620 end
 621
 622 function minetest.register_node(name, nodedef)
 623         nodedef.type = "node"
 624         minetest.register_item(name, nodedef)
 625 end
 626
 627 function minetest.register_craftitem(name, craftitemdef)
 628         craftitemdef.type = "craft"
 629
 630         -- BEGIN Legacy stuff
 631         if craftitemdef.inventory_image == nil and craftitemdef.image ~= nil then
 632                 craftitemdef.inventory_image = craftitemdef.image
 633         end
 634         -- END Legacy stuff
 635
 636         minetest.register_item(name, craftitemdef)
 637 end
 638
 639 function minetest.register_tool(name, tooldef)
 640         tooldef.type = "tool"
 641         tooldef.stack_max = 1
 642
 643         -- BEGIN Legacy stuff
 644         if tooldef.inventory_image == nil and tooldef.image ~= nil then
 645                 tooldef.inventory_image = tooldef.image
 646         end
 647         if tooldef.tool_capabilities == nil and
 648            (tooldef.full_punch_interval ~= nil or
 649             tooldef.basetime ~= nil or
 650             tooldef.dt_weight ~= nil or
 651             tooldef.dt_crackiness ~= nil or
 652             tooldef.dt_crumbliness ~= nil or
 653             tooldef.dt_cuttability ~= nil or
 654             tooldef.basedurability ~= nil or
 655             tooldef.dd_weight ~= nil or
 656             tooldef.dd_crackiness ~= nil or
 657             tooldef.dd_crumbliness ~= nil or
 658             tooldef.dd_cuttability ~= nil) then
 659                 tooldef.tool_capabilities = {
 660                         full_punch_interval = tooldef.full_punch_interval,
 661                         basetime = tooldef.basetime,
 662                         dt_weight = tooldef.dt_weight,
 663                         dt_crackiness = tooldef.dt_crackiness,
 664                         dt_crumbliness = tooldef.dt_crumbliness,
 665                         dt_cuttability = tooldef.dt_cuttability,
 666                         basedurability = tooldef.basedurability,
 667                         dd_weight = tooldef.dd_weight,
 668                         dd_crackiness = tooldef.dd_crackiness,
 669                         dd_crumbliness = tooldef.dd_crumbliness,
 670                         dd_cuttability = tooldef.dd_cuttability,
 671                 }
 672         end
 673         -- END Legacy stuff
 674
 675         minetest.register_item(name, tooldef)
 676 end
 677
 678 function minetest.register_alias(name, convert_to)
 679         if forbidden_item_names[name] then
 680                 error("Unable to register alias: Name is forbidden: " .. name)
 681         end
 682         if minetest.registered_items[name] ~= nil then
 683                 minetest.log("WARNING: Not registering alias, item with same name" ..
 684                         " is already defined: " .. name .. " -> " .. convert_to)
 685         else
 686                 --minetest.log("Registering alias: " .. name .. " -> " .. convert_to)
 687                 minetest.registered_aliases[name] = convert_to
 688                 register_alias_raw(name, convert_to)
 689         end
 690 end
 691
 692 -- Alias the forbidden item names to "" so they can't be
 693 -- created via itemstrings (e.g. /give)
 694 local name
 695 for name in pairs(forbidden_item_names) do
 696         minetest.registered_aliases[name] = ""
 697         register_alias_raw(name, "")
 698 end
 699
 700
 701 -- Deprecated:
 702 -- Aliases for minetest.register_alias (how ironic...)
 703 --minetest.alias_node = minetest.register_alias
 704 --minetest.alias_tool = minetest.register_alias
 705 --minetest.alias_craftitem = minetest.register_alias
 706
 707 --
 708 -- Built-in node definitions. Also defined in C.
 709 --
 710
 711 minetest.register_item(":unknown", {
 712         type = "none",
 713         description = "Unknown Item",
 714         inventory_image = "unknown_item.png",
 715         on_place = minetest.item_place,
 716         on_drop = minetest.item_drop,
 717 })
 718
 719 minetest.register_node(":air", {
 720         description = "Air (you hacker you!)",
 721         inventory_image = "unknown_block.png",
 722         wield_image = "unknown_block.png",
 723         drawtype = "airlike",
 724         paramtype = "light",
 725         sunlight_propagates = true,
 726         walkable = false,
 727         pointable = false,
 728         diggable = false,
 729         buildable_to = true,
 730         air_equivalent = true,
 731 })
 732
 733 minetest.register_node(":ignore", {
 734         description = "Ignore (you hacker you!)",
 735         inventory_image = "unknown_block.png",
 736         wield_image = "unknown_block.png",
 737         drawtype = "airlike",
 738         paramtype = "none",
 739         sunlight_propagates = false,
 740         walkable = false,
 741         pointable = false,
 742         diggable = false,
 743         buildable_to = true, -- A way to remove accidentally placed ignores
 744         air_equivalent = true,
 745 })
 746
 747 -- The hand (bare definition)
 748 minetest.register_item(":", {
 749         type = "none",
 750 })
 751
 752 --
 753 -- Default material types
 754 --
 755 function digprop_err()
 756         minetest.log("info", debug.traceback())
 757         minetest.log("info", "WARNING: The minetest.digprop_* functions are obsolete and need to be replaced by item groups.")
 758 end
 759
 760 minetest.digprop_constanttime = digprop_err
 761 minetest.digprop_stonelike = digprop_err
 762 minetest.digprop_dirtlike = digprop_err
 763 minetest.digprop_gravellike = digprop_err
 764 minetest.digprop_woodlike = digprop_err
 765 minetest.digprop_leaveslike = digprop_err
 766 minetest.digprop_glasslike = digprop_err
 767
 768 --
 769 -- Creative inventory
 770 --
 771
 772 minetest.creative_inventory = {}
 773
 774 minetest.add_to_creative_inventory = function(itemstring)
 775         table.insert(minetest.creative_inventory, itemstring)
 776 end
 777
 778 --
 779 -- Callback registration
 780 --
 781
 782 local function make_registration()
 783         local t = {}
 784         local registerfunc = function(func) table.insert(t, func) end
 785         return t, registerfunc
 786 end
 787
 788 minetest.registered_on_chat_messages, minetest.register_on_chat_message = make_registration()
 789 minetest.registered_globalsteps, minetest.register_globalstep = make_registration()
 790 minetest.registered_on_placenodes, minetest.register_on_placenode = make_registration()
 791 minetest.registered_on_dignodes, minetest.register_on_dignode = make_registration()
 792 minetest.registered_on_punchnodes, minetest.register_on_punchnode = make_registration()
 793 minetest.registered_on_generateds, minetest.register_on_generated = make_registration()
 794 minetest.registered_on_newplayers, minetest.register_on_newplayer = make_registration()
 795 minetest.registered_on_dieplayers, minetest.register_on_dieplayer = make_registration()
 796 minetest.registered_on_respawnplayers, minetest.register_on_respawnplayer = make_registration()
 797
 798 --
 799 -- Set random seed
 800 --
 801
 802 math.randomseed(os.time())
 803
 804 -- END