builtin/game/item.lua

   1 -- Minetest: builtin/item.lua
   2
   3 local builtin_shared = ...
   4
   5 local function copy_pointed_thing(pointed_thing)
   6         return {
   7                 type  = pointed_thing.type,
   8                 above = vector.new(pointed_thing.above),
   9                 under = vector.new(pointed_thing.under),
  10                 ref   = pointed_thing.ref,
  11         }
  12 end
  13
  14 --
  15 -- Item definition helpers
  16 --
  17
  18 function core.inventorycube(img1, img2, img3)
  19         img2 = img2 or img1
  20         img3 = img3 or img1
  21         return "[inventorycube"
  22                         .. "{" .. img1:gsub("%^", "&")
  23                         .. "{" .. img2:gsub("%^", "&")
  24                         .. "{" .. img3:gsub("%^", "&")
  25 end
  26
  27 function core.get_pointed_thing_position(pointed_thing, above)
  28         if pointed_thing.type == "node" then
  29                 if above then
  30                         -- The position where a node would be placed
  31                         return pointed_thing.above
  32                 end
  33                 -- The position where a node would be dug
  34                 return pointed_thing.under
  35         elseif pointed_thing.type == "object" then
  36                 return pointed_thing.ref and pointed_thing.ref:getpos()
  37         end
  38 end
  39
  40 function core.dir_to_facedir(dir, is6d)
  41         --account for y if requested
  42         if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then
  43
  44                 --from above
  45                 if dir.y < 0 then
  46                         if math.abs(dir.x) > math.abs(dir.z) then
  47                                 if dir.x < 0 then
  48                                         return 19
  49                                 else
  50                                         return 13
  51                                 end
  52                         else
  53                                 if dir.z < 0 then
  54                                         return 10
  55                                 else
  56                                         return 4
  57                                 end
  58                         end
  59
  60                 --from below
  61                 else
  62                         if math.abs(dir.x) > math.abs(dir.z) then
  63                                 if dir.x < 0 then
  64                                         return 15
  65                                 else
  66                                         return 17
  67                                 end
  68                         else
  69                                 if dir.z < 0 then
  70                                         return 6
  71                                 else
  72                                         return 8
  73                                 end
  74                         end
  75                 end
  76
  77         --otherwise, place horizontally
  78         elseif math.abs(dir.x) > math.abs(dir.z) then
  79                 if dir.x < 0 then
  80                         return 3
  81                 else
  82                         return 1
  83                 end
  84         else
  85                 if dir.z < 0 then
  86                         return 2
  87                 else
  88                         return 0
  89                 end
  90         end
  91 end
  92
  93 -- Table of possible dirs
  94 local facedir_to_dir = {
  95         {x= 0, y=0,  z= 1},
  96         {x= 1, y=0,  z= 0},
  97         {x= 0, y=0,  z=-1},
  98         {x=-1, y=0,  z= 0},
  99         {x= 0, y=-1, z= 0},
 100         {x= 0, y=1,  z= 0},
 101 }
 102 -- Mapping from facedir value to index in facedir_to_dir.
 103 local facedir_to_dir_map = {
 104         [0]=1, 2, 3, 4,
 105         5, 2, 6, 4,
 106         6, 2, 5, 4,
 107         1, 5, 3, 6,
 108         1, 6, 3, 5,
 109         1, 4, 3, 2,
 110 }
 111 function core.facedir_to_dir(facedir)
 112         return facedir_to_dir[facedir_to_dir_map[facedir % 32]]
 113 end
 114
 115 function core.dir_to_wallmounted(dir)
 116         if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then
 117                 if dir.y < 0 then
 118                         return 1
 119                 else
 120                         return 0
 121                 end
 122         elseif math.abs(dir.x) > math.abs(dir.z) then
 123                 if dir.x < 0 then
 124                         return 3
 125                 else
 126                         return 2
 127                 end
 128         else
 129                 if dir.z < 0 then
 130                         return 5
 131                 else
 132                         return 4
 133                 end
 134         end
 135 end
 136
 137 -- table of dirs in wallmounted order
 138 local wallmounted_to_dir = {
 139         [0] = {x = 0, y = 1, z = 0},
 140         {x =  0, y = -1, z =  0},
 141         {x =  1, y =  0, z =  0},
 142         {x = -1, y =  0, z =  0},
 143         {x =  0, y =  0, z =  1},
 144         {x =  0, y =  0, z = -1},
 145 }
 146 function core.wallmounted_to_dir(wallmounted)
 147         return wallmounted_to_dir[wallmounted % 8]
 148 end
 149
 150 function core.dir_to_yaw(dir)
 151         return -math.atan2(dir.x, dir.z)
 152 end
 153
 154 function core.yaw_to_dir(yaw)
 155         return {x = -math.sin(yaw), y = 0, z = math.cos(yaw)}
 156 end
 157
 158 function core.is_colored_paramtype(ptype)
 159         return (ptype == "color") or (ptype == "colorfacedir") or
 160                 (ptype == "colorwallmounted")
 161 end
 162
 163 function core.strip_param2_color(param2, paramtype2)
 164         if not core.is_colored_paramtype(paramtype2) then
 165                 return nil
 166         end
 167         if paramtype2 == "colorfacedir" then
 168                 param2 = math.floor(param2 / 32) * 32
 169         elseif paramtype2 == "colorwallmounted" then
 170                 param2 = math.floor(param2 / 8) * 8
 171         end
 172         -- paramtype2 == "color" requires no modification.
 173         return param2
 174 end
 175
 176 function core.get_node_drops(node, toolname)
 177         -- Compatibility, if node is string
 178         local nodename = node
 179         local param2 = 0
 180         -- New format, if node is table
 181         if (type(node) == "table") then
 182                 nodename = node.name
 183                 param2 = node.param2
 184         end
 185         local def = core.registered_nodes[nodename]
 186         local drop = def and def.drop
 187         local ptype = def and def.paramtype2
 188         -- get color, if there is color (otherwise nil)
 189         local palette_index = core.strip_param2_color(param2, ptype)
 190         if drop == nil then
 191                 -- default drop
 192                 if palette_index then
 193                         local stack = ItemStack(nodename)
 194                         stack:get_meta():set_int("palette_index", palette_index)
 195                         return {stack:to_string()}
 196                 end
 197                 return {nodename}
 198         elseif type(drop) == "string" then
 199                 -- itemstring drop
 200                 return {drop}
 201         elseif drop.items == nil then
 202                 -- drop = {} to disable default drop
 203                 return {}
 204         end
 205
 206         -- Extended drop table
 207         local got_items = {}
 208         local got_count = 0
 209         local _, item, tool
 210         for _, item in ipairs(drop.items) do
 211                 local good_rarity = true
 212                 local good_tool = true
 213                 if item.rarity ~= nil then
 214                         good_rarity = item.rarity < 1 or math.random(item.rarity) == 1
 215                 end
 216                 if item.tools ~= nil then
 217                         good_tool = false
 218                         for _, tool in ipairs(item.tools) do
 219                                 if tool:sub(1, 1) == '~' then
 220                                         good_tool = toolname:find(tool:sub(2)) ~= nil
 221                                 else
 222                                         good_tool = toolname == tool
 223                                 end
 224                                 if good_tool then
 225                                         break
 226                                 end
 227                         end
 228                 end
 229                 if good_rarity and good_tool then
 230                         got_count = got_count + 1
 231                         for _, add_item in ipairs(item.items) do
 232                                 -- add color, if necessary
 233                                 if item.inherit_color and palette_index then
 234                                         local stack = ItemStack(add_item)
 235                                         stack:get_meta():set_int("palette_index", palette_index)
 236                                         add_item = stack:to_string()
 237                                 end
 238                                 got_items[#got_items+1] = add_item
 239                         end
 240                         if drop.max_items ~= nil and got_count == drop.max_items then
 241                                 break
 242                         end
 243                 end
 244         end
 245         return got_items
 246 end
 247
 248 function core.item_place_node(itemstack, placer, pointed_thing, param2)
 249         local def = itemstack:get_definition()
 250         if def.type ~= "node" or pointed_thing.type ~= "node" then
 251                 return itemstack, false
 252         end
 253
 254         local under = pointed_thing.under
 255         local oldnode_under = core.get_node_or_nil(under)
 256         local above = pointed_thing.above
 257         local oldnode_above = core.get_node_or_nil(above)
 258         local playername = placer:get_player_name()
 259
 260         if not oldnode_under or not oldnode_above then
 261                 core.log("info", playername .. " tried to place"
 262                         .. " node in unloaded position " .. core.pos_to_string(above))
 263                 return itemstack, false
 264         end
 265
 266         local olddef_under = core.registered_nodes[oldnode_under.name]
 267         olddef_under = olddef_under or core.nodedef_default
 268         local olddef_above = core.registered_nodes[oldnode_above.name]
 269         olddef_above = olddef_above or core.nodedef_default
 270
 271         if not olddef_above.buildable_to and not olddef_under.buildable_to then
 272                 core.log("info", playername .. " tried to place"
 273                         .. " node in invalid position " .. core.pos_to_string(above)
 274                         .. ", replacing " .. oldnode_above.name)
 275                 return itemstack, false
 276         end
 277
 278         -- Place above pointed node
 279         local place_to = {x = above.x, y = above.y, z = above.z}
 280
 281         -- If node under is buildable_to, place into it instead (eg. snow)
 282         if olddef_under.buildable_to then
 283                 core.log("info", "node under is buildable to")
 284                 place_to = {x = under.x, y = under.y, z = under.z}
 285         end
 286
 287         if core.is_protected(place_to, playername) and
 288                         not minetest.check_player_privs(placer, "protection_bypass") then
 289                 core.log("action", playername
 290                                 .. " tried to place " .. def.name
 291                                 .. " at protected position "
 292                                 .. core.pos_to_string(place_to))
 293                 core.record_protection_violation(place_to, playername)
 294                 return itemstack
 295         end
 296
 297         core.log("action", playername .. " places node "
 298                 .. def.name .. " at " .. core.pos_to_string(place_to))
 299
 300         local oldnode = core.get_node(place_to)
 301         local newnode = {name = def.name, param1 = 0, param2 = param2 or 0}
 302
 303         -- Calculate direction for wall mounted stuff like torches and signs
 304         if def.place_param2 ~= nil then
 305                 newnode.param2 = def.place_param2
 306         elseif (def.paramtype2 == "wallmounted" or
 307                         def.paramtype2 == "colorwallmounted") and not param2 then
 308                 local dir = {
 309                         x = under.x - above.x,
 310                         y = under.y - above.y,
 311                         z = under.z - above.z
 312                 }
 313                 newnode.param2 = core.dir_to_wallmounted(dir)
 314         -- Calculate the direction for furnaces and chests and stuff
 315         elseif (def.paramtype2 == "facedir" or
 316                         def.paramtype2 == "colorfacedir") and not param2 then
 317                 local placer_pos = placer:getpos()
 318                 if placer_pos then
 319                         local dir = {
 320                                 x = above.x - placer_pos.x,
 321                                 y = above.y - placer_pos.y,
 322                                 z = above.z - placer_pos.z
 323                         }
 324                         newnode.param2 = core.dir_to_facedir(dir)
 325                         core.log("action", "facedir: " .. newnode.param2)
 326                 end
 327         end
 328
 329         local metatable = itemstack:get_meta():to_table().fields
 330
 331         -- Transfer color information
 332         if metatable.palette_index and not def.place_param2 then
 333                 local color_divisor = nil
 334                 if def.paramtype2 == "color" then
 335                         color_divisor = 1
 336                 elseif def.paramtype2 == "colorwallmounted" then
 337                         color_divisor = 8
 338                 elseif def.paramtype2 == "colorfacedir" then
 339                         color_divisor = 32
 340                 end
 341                 if color_divisor then
 342                         local color = math.floor(metatable.palette_index / color_divisor)
 343                         local other = newnode.param2 % color_divisor
 344                         newnode.param2 = color * color_divisor + other
 345                 end
 346         end
 347
 348         -- Check if the node is attached and if it can be placed there
 349         if core.get_item_group(def.name, "attached_node") ~= 0 and
 350                 not builtin_shared.check_attached_node(place_to, newnode) then
 351                 core.log("action", "attached node " .. def.name ..
 352                         " can not be placed at " .. core.pos_to_string(place_to))
 353                 return itemstack, false
 354         end
 355
 356         -- Add node and update
 357         core.add_node(place_to, newnode)
 358
 359         local take_item = true
 360
 361         -- Run callback
 362         if def.after_place_node then
 363                 -- Deepcopy place_to and pointed_thing because callback can modify it
 364                 local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
 365                 local pointed_thing_copy = copy_pointed_thing(pointed_thing)
 366                 if def.after_place_node(place_to_copy, placer, itemstack,
 367                                 pointed_thing_copy) then
 368                         take_item = false
 369                 end
 370         end
 371
 372         -- Run script hook
 373         for _, callback in ipairs(core.registered_on_placenodes) do
 374                 -- Deepcopy pos, node and pointed_thing because callback can modify them
 375                 local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
 376                 local newnode_copy = {name=newnode.name, param1=newnode.param1, param2=newnode.param2}
 377                 local oldnode_copy = {name=oldnode.name, param1=oldnode.param1, param2=oldnode.param2}
 378                 local pointed_thing_copy = copy_pointed_thing(pointed_thing)
 379                 if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack, pointed_thing_copy) then
 380                         take_item = false
 381                 end
 382         end
 383
 384         if take_item then
 385                 itemstack:take_item()
 386         end
 387         return itemstack, true
 388 end
 389
 390 function core.item_place_object(itemstack, placer, pointed_thing)
 391         local pos = core.get_pointed_thing_position(pointed_thing, true)
 392         if pos ~= nil then
 393                 local item = itemstack:take_item()
 394                 core.add_item(pos, item)
 395         end
 396         return itemstack
 397 end
 398
 399 function core.item_place(itemstack, placer, pointed_thing, param2)
 400         -- Call on_rightclick if the pointed node defines it
 401         if pointed_thing.type == "node" and placer and
 402                         not placer:get_player_control().sneak then
 403                 local n = core.get_node(pointed_thing.under)
 404                 local nn = n.name
 405                 if core.registered_nodes[nn] and core.registered_nodes[nn].on_rightclick then
 406                         return core.registered_nodes[nn].on_rightclick(pointed_thing.under, n,
 407                                         placer, itemstack, pointed_thing) or itemstack, false
 408                 end
 409         end
 410
 411         if itemstack:get_definition().type == "node" then
 412                 return core.item_place_node(itemstack, placer, pointed_thing, param2)
 413         end
 414         return itemstack
 415 end
 416
 417 function core.item_secondary_use(itemstack, placer)
 418         return itemstack
 419 end
 420
 421 function core.item_drop(itemstack, dropper, pos)
 422         if dropper and dropper:is_player() then
 423                 local dir = dropper:get_look_dir()
 424                 local p = {x = pos.x, y = pos.y + 1.2, z = pos.z}
 425                 local cnt = itemstack:get_count()
 426                 local item = itemstack:take_item(cnt)
 427                 local obj = core.add_item(p, item)
 428                 if obj then
 429                         dir.x = dir.x * 2
 430                         dir.y = dir.y * 2 + 2
 431                         dir.z = dir.z * 2
 432                         obj:set_velocity(dir)
 433                         obj:get_luaentity().dropped_by = dropper:get_player_name()
 434                         return itemstack
 435                 end
 436
 437         else
 438                 if core.add_item(pos, itemstack) then
 439                         return itemstack
 440                 end
 441         end
 442         -- If we reach this, adding the object to the
 443         -- environment failed
 444 end
 445
 446 function core.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
 447         for _, callback in pairs(core.registered_on_item_eats) do
 448                 local result = callback(hp_change, replace_with_item, itemstack, user, pointed_thing)
 449                 if result then
 450                         return result
 451                 end
 452         end
 453         if itemstack:take_item() ~= nil then
 454                 user:set_hp(user:get_hp() + hp_change)
 455
 456                 if replace_with_item then
 457                         if itemstack:is_empty() then
 458                                 itemstack:add_item(replace_with_item)
 459                         else
 460                                 local inv = user:get_inventory()
 461                                 if inv:room_for_item("main", {name=replace_with_item}) then
 462                                         inv:add_item("main", replace_with_item)
 463                                 else
 464                                         local pos = user:getpos()
 465                                         pos.y = math.floor(pos.y + 0.5)
 466                                         core.add_item(pos, replace_with_item)
 467                                 end
 468                         end
 469                 end
 470         end
 471         return itemstack
 472 end
 473
 474 function core.item_eat(hp_change, replace_with_item)
 475         return function(itemstack, user, pointed_thing)  -- closure
 476                 return core.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
 477         end
 478 end
 479
 480 function core.node_punch(pos, node, puncher, pointed_thing)
 481         -- Run script hook
 482         for _, callback in ipairs(core.registered_on_punchnodes) do
 483                 -- Copy pos and node because callback can modify them
 484                 local pos_copy = vector.new(pos)
 485                 local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
 486                 local pointed_thing_copy = pointed_thing and copy_pointed_thing(pointed_thing) or nil
 487                 callback(pos_copy, node_copy, puncher, pointed_thing_copy)
 488         end
 489 end
 490
 491 function core.handle_node_drops(pos, drops, digger)
 492         -- Add dropped items to object's inventory
 493         if digger:get_inventory() then
 494                 local _, dropped_item
 495                 for _, dropped_item in ipairs(drops) do
 496                         local left = digger:get_inventory():add_item("main", dropped_item)
 497                         if not left:is_empty() then
 498                                 local p = {
 499                                         x = pos.x + math.random()/2-0.25,
 500                                         y = pos.y + math.random()/2-0.25,
 501                                         z = pos.z + math.random()/2-0.25,
 502                                 }
 503                                 core.add_item(p, left)
 504                         end
 505                 end
 506         end
 507 end
 508
 509 function core.node_dig(pos, node, digger)
 510         local def = core.registered_nodes[node.name]
 511         if def and (not def.diggable or
 512                         (def.can_dig and not def.can_dig(pos, digger))) then
 513                 core.log("info", digger:get_player_name() .. " tried to dig "
 514                         .. node.name .. " which is not diggable "
 515                         .. core.pos_to_string(pos))
 516                 return
 517         end
 518
 519         if core.is_protected(pos, digger:get_player_name()) and
 520                         not minetest.check_player_privs(digger, "protection_bypass") then
 521                 core.log("action", digger:get_player_name()
 522                                 .. " tried to dig " .. node.name
 523                                 .. " at protected position "
 524                                 .. core.pos_to_string(pos))
 525                 core.record_protection_violation(pos, digger:get_player_name())
 526                 return
 527         end
 528
 529         core.log('action', digger:get_player_name() .. " digs "
 530                 .. node.name .. " at " .. core.pos_to_string(pos))
 531
 532         local wielded = digger:get_wielded_item()
 533         local drops = core.get_node_drops(node, wielded:get_name())
 534
 535         local wdef = wielded:get_definition()
 536         local tp = wielded:get_tool_capabilities()
 537         local dp = core.get_dig_params(def and def.groups, tp)
 538         if wdef and wdef.after_use then
 539                 wielded = wdef.after_use(wielded, digger, node, dp) or wielded
 540         else
 541                 -- Wear out tool
 542                 if not core.settings:get_bool("creative_mode") then
 543                         wielded:add_wear(dp.wear)
 544                         if wielded:get_count() == 0 and wdef.sound and wdef.sound.breaks then
 545                                 core.sound_play(wdef.sound.breaks, {pos = pos, gain = 0.5})
 546                         end
 547                 end
 548         end
 549         digger:set_wielded_item(wielded)
 550
 551         -- Handle drops
 552         core.handle_node_drops(pos, drops, digger)
 553
 554         local oldmetadata = nil
 555         if def and def.after_dig_node then
 556                 oldmetadata = core.get_meta(pos):to_table()
 557         end
 558
 559         -- Remove node and update
 560         core.remove_node(pos)
 561
 562         -- Run callback
 563         if def and def.after_dig_node then
 564                 -- Copy pos and node because callback can modify them
 565                 local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
 566                 local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
 567                 def.after_dig_node(pos_copy, node_copy, oldmetadata, digger)
 568         end
 569
 570         -- Run script hook
 571         local _, callback
 572         for _, callback in ipairs(core.registered_on_dignodes) do
 573                 local origin = core.callback_origins[callback]
 574                 if origin then
 575                         core.set_last_run_mod(origin.mod)
 576                         --print("Running " .. tostring(callback) ..
 577                         --      " (a " .. origin.name .. " callback in " .. origin.mod .. ")")
 578                 else
 579                         --print("No data associated with callback")
 580                 end
 581
 582                 -- Copy pos and node because callback can modify them
 583                 local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
 584                 local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
 585                 callback(pos_copy, node_copy, digger)
 586         end
 587 end
 588
 589 function core.itemstring_with_palette(item, palette_index)
 590         local stack = ItemStack(item) -- convert to ItemStack
 591         stack:get_meta():set_int("palette_index", palette_index)
 592         return stack:to_string()
 593 end
 594
 595 function core.itemstring_with_color(item, colorstring)
 596         local stack = ItemStack(item) -- convert to ItemStack
 597         stack:get_meta():set_string("color", colorstring)
 598         return stack:to_string()
 599 end
 600
 601 -- This is used to allow mods to redefine core.item_place and so on
 602 -- NOTE: This is not the preferred way. Preferred way is to provide enough
 603 --       callbacks to not require redefining global functions. -celeron55
 604 local function redef_wrapper(table, name)
 605         return function(...)
 606                 return table[name](...)
 607         end
 608 end
 609
 610 --
 611 -- Item definition defaults
 612 --
 613
 614 core.nodedef_default = {
 615         -- Item properties
 616         type="node",
 617         -- name intentionally not defined here
 618         description = "",
 619         groups = {},
 620         inventory_image = "",
 621         wield_image = "",
 622         wield_scale = {x=1,y=1,z=1},
 623         stack_max = 99,
 624         usable = false,
 625         liquids_pointable = false,
 626         tool_capabilities = nil,
 627         node_placement_prediction = nil,
 628
 629         -- Interaction callbacks
 630         on_place = redef_wrapper(core, 'item_place'), -- core.item_place
 631         on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
 632         on_use = nil,
 633         can_dig = nil,
 634
 635         on_punch = redef_wrapper(core, 'node_punch'), -- core.node_punch
 636         on_rightclick = nil,
 637         on_dig = redef_wrapper(core, 'node_dig'), -- core.node_dig
 638
 639         on_receive_fields = nil,
 640
 641         on_metadata_inventory_move = core.node_metadata_inventory_move_allow_all,
 642         on_metadata_inventory_offer = core.node_metadata_inventory_offer_allow_all,
 643         on_metadata_inventory_take = core.node_metadata_inventory_take_allow_all,
 644
 645         -- Node properties
 646         drawtype = "normal",
 647         visual_scale = 1.0,
 648         -- Don't define these because otherwise the old tile_images and
 649         -- special_materials wouldn't be read
 650         --tiles ={""},
 651         --special_tiles = {
 652         --      {name="", backface_culling=true},
 653         --      {name="", backface_culling=true},
 654         --},
 655         alpha = 255,
 656         post_effect_color = {a=0, r=0, g=0, b=0},
 657         paramtype = "none",
 658         paramtype2 = "none",
 659         is_ground_content = true,
 660         sunlight_propagates = false,
 661         walkable = true,
 662         pointable = true,
 663         diggable = true,
 664         climbable = false,
 665         buildable_to = false,
 666         floodable = false,
 667         liquidtype = "none",
 668         liquid_alternative_flowing = "",
 669         liquid_alternative_source = "",
 670         liquid_viscosity = 0,
 671         drowning = 0,
 672         light_source = 0,
 673         damage_per_second = 0,
 674         selection_box = {type="regular"},
 675         legacy_facedir_simple = false,
 676         legacy_wallmounted = false,
 677 }
 678
 679 core.craftitemdef_default = {
 680         type="craft",
 681         -- name intentionally not defined here
 682         description = "",
 683         groups = {},
 684         inventory_image = "",
 685         wield_image = "",
 686         wield_scale = {x=1,y=1,z=1},
 687         stack_max = 99,
 688         liquids_pointable = false,
 689         tool_capabilities = nil,
 690
 691         -- Interaction callbacks
 692         on_place = redef_wrapper(core, 'item_place'), -- core.item_place
 693         on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
 694         on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
 695         on_use = nil,
 696 }
 697
 698 core.tooldef_default = {
 699         type="tool",
 700         -- name intentionally not defined here
 701         description = "",
 702         groups = {},
 703         inventory_image = "",
 704         wield_image = "",
 705         wield_scale = {x=1,y=1,z=1},
 706         stack_max = 1,
 707         liquids_pointable = false,
 708         tool_capabilities = nil,
 709
 710         -- Interaction callbacks
 711         on_place = redef_wrapper(core, 'item_place'), -- core.item_place
 712         on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
 713         on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
 714         on_use = nil,
 715 }
 716
 717 core.noneitemdef_default = {  -- This is used for the hand and unknown items
 718         type="none",
 719         -- name intentionally not defined here
 720         description = "",
 721         groups = {},
 722         inventory_image = "",
 723         wield_image = "",
 724         wield_scale = {x=1,y=1,z=1},
 725         stack_max = 99,
 726         liquids_pointable = false,
 727         tool_capabilities = nil,
 728
 729         -- Interaction callbacks
 730         on_place = redef_wrapper(core, 'item_place'),
 731         on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
 732         on_drop = nil,
 733         on_use = nil,
 734 }