mods/tnt/init.lua

   1 -- tnt/init.lua
   2
   3 tnt = {}
   4
   5 -- Load support for MT game translation.
   6 local S = minetest.get_translator("tnt")
   7
   8
   9 -- Default to enabled when in singleplayer
  10 local enable_tnt = minetest.settings:get_bool("enable_tnt")
  11 if enable_tnt == nil then
  12         enable_tnt = minetest.is_singleplayer()
  13 end
  14
  15 -- loss probabilities array (one in X will be lost)
  16 local loss_prob = {}
  17
  18 loss_prob["default:cobble"] = 3
  19 loss_prob["default:dirt"] = 4
  20
  21 local tnt_radius = tonumber(minetest.settings:get("tnt_radius") or 3)
  22
  23 -- Fill a list with data for content IDs, after all nodes are registered
  24 local cid_data = {}
  25 minetest.register_on_mods_loaded(function()
  26         for name, def in pairs(minetest.registered_nodes) do
  27                 cid_data[minetest.get_content_id(name)] = {
  28                         name = name,
  29                         drops = def.drops,
  30                         flammable = def.groups.flammable,
  31                         on_blast = def.on_blast,
  32                 }
  33         end
  34 end)
  35
  36 local function rand_pos(center, pos, radius)
  37         local def
  38         local reg_nodes = minetest.registered_nodes
  39         local i = 0
  40         repeat
  41                 -- Give up and use the center if this takes too long
  42                 if i > 4 then
  43                         pos.x, pos.z = center.x, center.z
  44                         break
  45                 end
  46                 pos.x = center.x + math.random(-radius, radius)
  47                 pos.z = center.z + math.random(-radius, radius)
  48                 def = reg_nodes[minetest.get_node(pos).name]
  49                 i = i + 1
  50         until def and not def.walkable
  51 end
  52
  53 local function eject_drops(drops, pos, radius)
  54         local drop_pos = vector.new(pos)
  55         for _, item in pairs(drops) do
  56                 local count = math.min(item:get_count(), item:get_stack_max())
  57                 while count > 0 do
  58                         local take = math.max(1,math.min(radius * radius,
  59                                         count,
  60                                         item:get_stack_max()))
  61                         rand_pos(pos, drop_pos, radius)
  62                         local dropitem = ItemStack(item)
  63                         dropitem:set_count(take)
  64                         local obj = minetest.add_item(drop_pos, dropitem)
  65                         if obj then
  66                                 obj:get_luaentity().collect = true
  67                                 obj:set_acceleration({x = 0, y = -10, z = 0})
  68                                 obj:set_velocity({x = math.random(-3, 3),
  69                                                 y = math.random(0, 10),
  70                                                 z = math.random(-3, 3)})
  71                         end
  72                         count = count - take
  73                 end
  74         end
  75 end
  76
  77 local function add_drop(drops, item)
  78         item = ItemStack(item)
  79         local name = item:get_name()
  80         if loss_prob[name] ~= nil and math.random(1, loss_prob[name]) == 1 then
  81                 return
  82         end
  83
  84         local drop = drops[name]
  85         if drop == nil then
  86                 drops[name] = item
  87         else
  88                 drop:set_count(drop:get_count() + item:get_count())
  89         end
  90 end
  91
  92 local basic_flame_on_construct -- cached value
  93 local function destroy(drops, npos, cid, c_air, c_fire,
  94                 on_blast_queue, on_construct_queue,
  95                 ignore_protection, ignore_on_blast, owner)
  96         if not ignore_protection and minetest.is_protected(npos, owner) then
  97                 return cid
  98         end
  99
 100         local def = cid_data[cid]
 101
 102         if not def then
 103                 return c_air
 104         elseif not ignore_on_blast and def.on_blast then
 105                 on_blast_queue[#on_blast_queue + 1] = {
 106                         pos = vector.new(npos),
 107                         on_blast = def.on_blast
 108                 }
 109                 return cid
 110         elseif def.flammable then
 111                 on_construct_queue[#on_construct_queue + 1] = {
 112                         fn = basic_flame_on_construct,
 113                         pos = vector.new(npos)
 114                 }
 115                 return c_fire
 116         else
 117                 local node_drops = minetest.get_node_drops(def.name, "")
 118                 for _, item in pairs(node_drops) do
 119                         add_drop(drops, item)
 120                 end
 121                 return c_air
 122         end
 123 end
 124
 125 local function calc_velocity(pos1, pos2, old_vel, power)
 126         -- Avoid errors caused by a vector of zero length
 127         if vector.equals(pos1, pos2) then
 128                 return old_vel
 129         end
 130
 131         local vel = vector.direction(pos1, pos2)
 132         vel = vector.normalize(vel)
 133         vel = vector.multiply(vel, power)
 134
 135         -- Divide by distance
 136         local dist = vector.distance(pos1, pos2)
 137         dist = math.max(dist, 1)
 138         vel = vector.divide(vel, dist)
 139
 140         -- Add old velocity
 141         vel = vector.add(vel, old_vel)
 142
 143         -- randomize it a bit
 144         vel = vector.add(vel, {
 145                 x = math.random() - 0.5,
 146                 y = math.random() - 0.5,
 147                 z = math.random() - 0.5,
 148         })
 149
 150         -- Limit to terminal velocity
 151         dist = vector.length(vel)
 152         if dist > 250 then
 153                 vel = vector.divide(vel, dist / 250)
 154         end
 155         return vel
 156 end
 157
 158 local function entity_physics(pos, radius, drops)
 159         local objs = minetest.get_objects_inside_radius(pos, radius)
 160         for _, obj in pairs(objs) do
 161                 local obj_pos = obj:get_pos()
 162                 local dist = math.max(1, vector.distance(pos, obj_pos))
 163
 164                 local damage = (4 / dist) * radius
 165                 if obj:is_player() then
 166                         local dir = vector.normalize(vector.subtract(obj_pos, pos))
 167                         local moveoff = vector.multiply(dir, 2 / dist * radius)
 168                         obj:add_player_velocity(moveoff)
 169
 170                         obj:set_hp(obj:get_hp() - damage)
 171                 else
 172                         local luaobj = obj:get_luaentity()
 173
 174                         -- object might have disappeared somehow
 175                         if luaobj then
 176                                 local do_damage = true
 177                                 local do_knockback = true
 178                                 local entity_drops = {}
 179                                 local objdef = minetest.registered_entities[luaobj.name]
 180
 181                                 if objdef and objdef.on_blast then
 182                                         do_damage, do_knockback, entity_drops = objdef.on_blast(luaobj, damage)
 183                                 end
 184
 185                                 if do_knockback then
 186                                         local obj_vel = obj:get_velocity()
 187                                         obj:set_velocity(calc_velocity(pos, obj_pos,
 188                                                         obj_vel, radius * 10))
 189                                 end
 190                                 if do_damage then
 191                                         if not obj:get_armor_groups().immortal then
 192                                                 obj:punch(obj, 1.0, {
 193                                                         full_punch_interval = 1.0,
 194                                                         damage_groups = {fleshy = damage},
 195                                                 }, nil)
 196                                         end
 197                                 end
 198                                 for _, item in pairs(entity_drops) do
 199                                         add_drop(drops, item)
 200                                 end
 201                         end
 202                 end
 203         end
 204 end
 205
 206 local function add_effects(pos, radius, drops)
 207         minetest.add_particle({
 208                 pos = pos,
 209                 velocity = vector.new(),
 210                 acceleration = vector.new(),
 211                 expirationtime = 0.4,
 212                 size = radius * 10,
 213                 collisiondetection = false,
 214                 vertical = false,
 215                 texture = "tnt_boom.png",
 216                 glow = 15,
 217         })
 218         minetest.add_particlespawner({
 219                 amount = 64,
 220                 time = 0.5,
 221                 minpos = vector.subtract(pos, radius / 2),
 222                 maxpos = vector.add(pos, radius / 2),
 223                 minvel = {x = -10, y = -10, z = -10},
 224                 maxvel = {x = 10, y = 10, z = 10},
 225                 minacc = vector.new(),
 226                 maxacc = vector.new(),
 227                 minexptime = 1,
 228                 maxexptime = 2.5,
 229                 minsize = radius * 3,
 230                 maxsize = radius * 5,
 231                 texture = "tnt_smoke.png",
 232         })
 233
 234         -- we just dropped some items. Look at the items entities and pick
 235         -- one of them to use as texture
 236         local texture = "tnt_blast.png" --fallback texture
 237         local node
 238         local most = 0
 239         for name, stack in pairs(drops) do
 240                 local count = stack:get_count()
 241                 if count > most then
 242                         most = count
 243                         local def = minetest.registered_nodes[name]
 244                         if def then
 245                                 node = { name = name }
 246                         end
 247                         if def and def.tiles and def.tiles[1] then
 248                                 texture = def.tiles[1]
 249                         end
 250                 end
 251         end
 252
 253         minetest.add_particlespawner({
 254                 amount = 64,
 255                 time = 0.1,
 256                 minpos = vector.subtract(pos, radius / 2),
 257                 maxpos = vector.add(pos, radius / 2),
 258                 minvel = {x = -3, y = 0, z = -3},
 259                 maxvel = {x = 3, y = 5,  z = 3},
 260                 minacc = {x = 0, y = -10, z = 0},
 261                 maxacc = {x = 0, y = -10, z = 0},
 262                 minexptime = 0.8,
 263                 maxexptime = 2.0,
 264                 minsize = radius * 0.33,
 265                 maxsize = radius,
 266                 texture = texture,
 267                 -- ^ only as fallback for clients without support for `node` parameter
 268                 node = node,
 269                 collisiondetection = true,
 270         })
 271 end
 272
 273 function tnt.burn(pos, nodename)
 274         local name = nodename or minetest.get_node(pos).name
 275         local def = minetest.registered_nodes[name]
 276         if not def then
 277                 return
 278         elseif def.on_ignite then
 279                 def.on_ignite(pos)
 280         elseif minetest.get_item_group(name, "tnt") > 0 then
 281                 minetest.swap_node(pos, {name = name .. "_burning"})
 282                 minetest.sound_play("tnt_ignite", {pos = pos}, true)
 283                 minetest.get_node_timer(pos):start(1)
 284         end
 285 end
 286
 287 local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast, owner, explode_center)
 288         pos = vector.round(pos)
 289         -- scan for adjacent TNT nodes first, and enlarge the explosion
 290         local vm1 = VoxelManip()
 291         local p1 = vector.subtract(pos, 2)
 292         local p2 = vector.add(pos, 2)
 293         local minp, maxp = vm1:read_from_map(p1, p2)
 294         local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
 295         local data = vm1:get_data()
 296         local count = 0
 297         local c_tnt
 298         local c_tnt_burning = minetest.get_content_id("tnt:tnt_burning")
 299         local c_tnt_boom = minetest.get_content_id("tnt:boom")
 300         local c_air = minetest.get_content_id("air")
 301         if enable_tnt then
 302                 c_tnt = minetest.get_content_id("tnt:tnt")
 303         else
 304                 c_tnt = c_tnt_burning -- tnt is not registered if disabled
 305         end
 306         -- make sure we still have explosion even when centre node isnt tnt related
 307         if explode_center then
 308                 count = 1
 309         end
 310
 311         for z = pos.z - 2, pos.z + 2 do
 312         for y = pos.y - 2, pos.y + 2 do
 313                 local vi = a:index(pos.x - 2, y, z)
 314                 for x = pos.x - 2, pos.x + 2 do
 315                         local cid = data[vi]
 316                         if cid == c_tnt or cid == c_tnt_boom or cid == c_tnt_burning then
 317                                 count = count + 1
 318                                 data[vi] = c_air
 319                         end
 320                         vi = vi + 1
 321                 end
 322         end
 323         end
 324
 325         vm1:set_data(data)
 326         vm1:write_to_map()
 327
 328         -- recalculate new radius
 329         radius = math.floor(radius * math.pow(count, 1/3))
 330
 331         -- perform the explosion
 332         local vm = VoxelManip()
 333         local pr = PseudoRandom(os.time())
 334         p1 = vector.subtract(pos, radius)
 335         p2 = vector.add(pos, radius)
 336         minp, maxp = vm:read_from_map(p1, p2)
 337         a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
 338         data = vm:get_data()
 339
 340         local drops = {}
 341         local on_blast_queue = {}
 342         local on_construct_queue = {}
 343         basic_flame_on_construct = minetest.registered_nodes["fire:basic_flame"].on_construct
 344
 345         local c_fire = minetest.get_content_id("fire:basic_flame")
 346         for z = -radius, radius do
 347         for y = -radius, radius do
 348         local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
 349         for x = -radius, radius do
 350                 local r = vector.length(vector.new(x, y, z))
 351                 if (radius * radius) / (r * r) >= (pr:next(80, 125) / 100) then
 352                         local cid = data[vi]
 353                         local p = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
 354                         if cid ~= c_air then
 355                                 data[vi] = destroy(drops, p, cid, c_air, c_fire,
 356                                         on_blast_queue, on_construct_queue,
 357                                         ignore_protection, ignore_on_blast, owner)
 358                         end
 359                 end
 360                 vi = vi + 1
 361         end
 362         end
 363         end
 364
 365         vm:set_data(data)
 366         vm:write_to_map()
 367         vm:update_map()
 368         vm:update_liquids()
 369
 370         -- call check_single_for_falling for everything within 1.5x blast radius
 371         for y = -radius * 1.5, radius * 1.5 do
 372         for z = -radius * 1.5, radius * 1.5 do
 373         for x = -radius * 1.5, radius * 1.5 do
 374                 local rad = {x = x, y = y, z = z}
 375                 local s = vector.add(pos, rad)
 376                 local r = vector.length(rad)
 377                 if r / radius < 1.4 then
 378                         minetest.check_single_for_falling(s)
 379                 end
 380         end
 381         end
 382         end
 383
 384         for _, queued_data in pairs(on_blast_queue) do
 385                 local dist = math.max(1, vector.distance(queued_data.pos, pos))
 386                 local intensity = (radius * radius) / (dist * dist)
 387                 local node_drops = queued_data.on_blast(queued_data.pos, intensity)
 388                 if node_drops then
 389                         for _, item in pairs(node_drops) do
 390                                 add_drop(drops, item)
 391                         end
 392                 end
 393         end
 394
 395         for _, queued_data in pairs(on_construct_queue) do
 396                 queued_data.fn(queued_data.pos)
 397         end
 398
 399         minetest.log("action", "TNT owned by " .. owner .. " detonated at " ..
 400                 minetest.pos_to_string(pos) .. " with radius " .. radius)
 401
 402         return drops, radius
 403 end
 404
 405 function tnt.boom(pos, def)
 406         def = def or {}
 407         def.radius = def.radius or 1
 408         def.damage_radius = def.damage_radius or def.radius * 2
 409         local meta = minetest.get_meta(pos)
 410         local owner = meta:get_string("owner")
 411         if not def.explode_center then
 412                 minetest.set_node(pos, {name = "tnt:boom"})
 413         end
 414         local sound = def.sound or "tnt_explode"
 415         minetest.sound_play(sound, {pos = pos, gain = 2.5,
 416                         max_hear_distance = math.min(def.radius * 20, 128)}, true)
 417         local drops, radius = tnt_explode(pos, def.radius, def.ignore_protection,
 418                         def.ignore_on_blast, owner, def.explode_center)
 419         -- append entity drops
 420         local damage_radius = (radius / math.max(1, def.radius)) * def.damage_radius
 421         entity_physics(pos, damage_radius, drops)
 422         if not def.disable_drops then
 423                 eject_drops(drops, pos, radius)
 424         end
 425         add_effects(pos, radius, drops)
 426         minetest.log("action", "A TNT explosion occurred at " .. minetest.pos_to_string(pos) ..
 427                 " with radius " .. radius)
 428 end
 429
 430 minetest.register_node("tnt:boom", {
 431         drawtype = "airlike",
 432         light_source = default.LIGHT_MAX,
 433         walkable = false,
 434         drop = "",
 435         groups = {dig_immediate = 3},
 436         -- unaffected by explosions
 437         on_blast = function() end,
 438 })
 439
 440 minetest.register_node("tnt:gunpowder", {
 441         description = S("Gun Powder"),
 442         drawtype = "raillike",
 443         paramtype = "light",
 444         is_ground_content = false,
 445         sunlight_propagates = true,
 446         walkable = false,
 447         tiles = {
 448                 "tnt_gunpowder_straight.png",
 449                 "tnt_gunpowder_curved.png",
 450                 "tnt_gunpowder_t_junction.png",
 451                 "tnt_gunpowder_crossing.png"
 452         },
 453         inventory_image = "tnt_gunpowder_inventory.png",
 454         wield_image = "tnt_gunpowder_inventory.png",
 455         selection_box = {
 456                 type = "fixed",
 457                 fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 458         },
 459         groups = {dig_immediate = 2, attached_node = 1, flammable = 5,
 460                 connect_to_raillike = minetest.raillike_group("gunpowder")},
 461         sounds = default.node_sound_leaves_defaults(),
 462
 463         on_punch = function(pos, node, puncher)
 464                 if puncher:get_wielded_item():get_name() == "default:torch" then
 465                         minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 466                         minetest.log("action", puncher:get_player_name() ..
 467                                 " ignites tnt:gunpowder at " ..
 468                                 minetest.pos_to_string(pos))
 469                 end
 470         end,
 471         on_blast = function(pos, intensity)
 472                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 473         end,
 474         on_burn = function(pos)
 475                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 476         end,
 477         on_ignite = function(pos, igniter)
 478                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 479         end,
 480 })
 481
 482 minetest.register_node("tnt:gunpowder_burning", {
 483         drawtype = "raillike",
 484         paramtype = "light",
 485         sunlight_propagates = true,
 486         walkable = false,
 487         light_source = 5,
 488         tiles = {{
 489                 name = "tnt_gunpowder_burning_straight_animated.png",
 490                 animation = {
 491                         type = "vertical_frames",
 492                         aspect_w = 16,
 493                         aspect_h = 16,
 494                         length = 1,
 495                 }
 496         },
 497         {
 498                 name = "tnt_gunpowder_burning_curved_animated.png",
 499                 animation = {
 500                         type = "vertical_frames",
 501                         aspect_w = 16,
 502                         aspect_h = 16,
 503                         length = 1,
 504                 }
 505         },
 506         {
 507                 name = "tnt_gunpowder_burning_t_junction_animated.png",
 508                 animation = {
 509                         type = "vertical_frames",
 510                         aspect_w = 16,
 511                         aspect_h = 16,
 512                         length = 1,
 513                 }
 514         },
 515         {
 516                 name = "tnt_gunpowder_burning_crossing_animated.png",
 517                 animation = {
 518                         type = "vertical_frames",
 519                         aspect_w = 16,
 520                         aspect_h = 16,
 521                         length = 1,
 522                 }
 523         }},
 524         selection_box = {
 525                 type = "fixed",
 526                 fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 527         },
 528         drop = "",
 529         groups = {
 530                 dig_immediate = 2,
 531                 attached_node = 1,
 532                 connect_to_raillike = minetest.raillike_group("gunpowder")
 533         },
 534         sounds = default.node_sound_leaves_defaults(),
 535         on_timer = function(pos, elapsed)
 536                 for dx = -1, 1 do
 537                 for dz = -1, 1 do
 538                         if math.abs(dx) + math.abs(dz) == 1 then
 539                                 for dy = -1, 1 do
 540                                         tnt.burn({
 541                                                 x = pos.x + dx,
 542                                                 y = pos.y + dy,
 543                                                 z = pos.z + dz,
 544                                         })
 545                                 end
 546                         end
 547                 end
 548                 end
 549                 minetest.remove_node(pos)
 550         end,
 551         -- unaffected by explosions
 552         on_blast = function() end,
 553         on_construct = function(pos)
 554                 minetest.sound_play("tnt_gunpowder_burning", {pos = pos,
 555                         gain = 2}, true)
 556                 minetest.get_node_timer(pos):start(1)
 557         end,
 558 })
 559
 560 minetest.register_craft({
 561         output = "tnt:gunpowder 5",
 562         type = "shapeless",
 563         recipe = {"default:coal_lump", "default:gravel"}
 564 })
 565
 566 minetest.register_craftitem("tnt:tnt_stick", {
 567         description = S("TNT Stick"),
 568         inventory_image = "tnt_tnt_stick.png",
 569         groups = {flammable = 5},
 570 })
 571
 572 if enable_tnt then
 573         minetest.register_craft({
 574                 output = "tnt:tnt_stick 2",
 575                 recipe = {
 576                         {"tnt:gunpowder", "", "tnt:gunpowder"},
 577                         {"tnt:gunpowder", "default:paper", "tnt:gunpowder"},
 578                         {"tnt:gunpowder", "", "tnt:gunpowder"},
 579                 }
 580         })
 581
 582         minetest.register_craft({
 583                 output = "tnt:tnt",
 584                 recipe = {
 585                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"},
 586                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"},
 587                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"}
 588                 }
 589         })
 590
 591         minetest.register_abm({
 592                 label = "TNT ignition",
 593                 nodenames = {"group:tnt", "tnt:gunpowder"},
 594                 neighbors = {"fire:basic_flame", "default:lava_source", "default:lava_flowing"},
 595                 interval = 4,
 596                 chance = 1,
 597                 action = function(pos, node)
 598                         tnt.burn(pos, node.name)
 599                 end,
 600         })
 601 end
 602
 603 function tnt.register_tnt(def)
 604         local name
 605         if not def.name:find(':') then
 606                 name = "tnt:" .. def.name
 607         else
 608                 name = def.name
 609                 def.name = def.name:match(":([%w_]+)")
 610         end
 611         if not def.tiles then def.tiles = {} end
 612         local tnt_top = def.tiles.top or def.name .. "_top.png"
 613         local tnt_bottom = def.tiles.bottom or def.name .. "_bottom.png"
 614         local tnt_side = def.tiles.side or def.name .. "_side.png"
 615         local tnt_burning = def.tiles.burning or def.name .. "_top_burning_animated.png"
 616         if not def.damage_radius then def.damage_radius = def.radius * 2 end
 617
 618         if enable_tnt then
 619                 minetest.register_node(":" .. name, {
 620                         description = def.description,
 621                         tiles = {tnt_top, tnt_bottom, tnt_side},
 622                         is_ground_content = false,
 623                         groups = {dig_immediate = 2, mesecon = 2, tnt = 1, flammable = 5},
 624                         sounds = default.node_sound_wood_defaults(),
 625                         after_place_node = function(pos, placer)
 626                                 if placer:is_player() then
 627                                         local meta = minetest.get_meta(pos)
 628                                         meta:set_string("owner", placer:get_player_name())
 629                                 end
 630                         end,
 631                         on_punch = function(pos, node, puncher)
 632                                 if puncher:get_wielded_item():get_name() == "default:torch" then
 633                                         minetest.swap_node(pos, {name = name .. "_burning"})
 634                                         minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 635                                         minetest.log("action", puncher:get_player_name() ..
 636                                                 " ignites " .. node.name .. " at " ..
 637                                                 minetest.pos_to_string(pos))
 638                                 end
 639                         end,
 640                         on_blast = function(pos, intensity)
 641                                 minetest.after(0.1, function()
 642                                         tnt.boom(pos, def)
 643                                 end)
 644                         end,
 645                         mesecons = {effector =
 646                                 {action_on =
 647                                         function(pos)
 648                                                 tnt.boom(pos, def)
 649                                         end
 650                                 }
 651                         },
 652                         on_burn = function(pos)
 653                                 minetest.swap_node(pos, {name = name .. "_burning"})
 654                                 minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 655                         end,
 656                         on_ignite = function(pos, igniter)
 657                                 minetest.swap_node(pos, {name = name .. "_burning"})
 658                                 minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 659                         end,
 660                 })
 661         end
 662
 663         minetest.register_node(":" .. name .. "_burning", {
 664                 tiles = {
 665                         {
 666                                 name = tnt_burning,
 667                                 animation = {
 668                                         type = "vertical_frames",
 669                                         aspect_w = 16,
 670                                         aspect_h = 16,
 671                                         length = 1,
 672                                 }
 673                         },
 674                         tnt_bottom, tnt_side
 675                         },
 676                 light_source = 5,
 677                 drop = "",
 678                 sounds = default.node_sound_wood_defaults(),
 679                 groups = {falling_node = 1},
 680                 on_timer = function(pos, elapsed)
 681                         tnt.boom(pos, def)
 682                 end,
 683                 -- unaffected by explosions
 684                 on_blast = function() end,
 685                 on_construct = function(pos)
 686                         minetest.sound_play("tnt_ignite", {pos = pos}, true)
 687                         minetest.get_node_timer(pos):start(4)
 688                         minetest.check_for_falling(pos)
 689                 end,
 690         })
 691 end
 692
 693 tnt.register_tnt({
 694         name = "tnt:tnt",
 695         description = S("TNT"),
 696         radius = tnt_radius,
 697 })