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.after(0, 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                         -- currently the engine has no method to set
 167                         -- player velocity. See #2960
 168                         -- instead, we knock the player back 1.0 node, and slightly upwards
 169                         local dir = vector.normalize(vector.subtract(obj_pos, pos))
 170                         local moveoff = vector.multiply(dir, dist + 1.0)
 171                         local newpos = vector.add(pos, moveoff)
 172                         newpos = vector.add(newpos, {x = 0, y = 0.2, z = 0})
 173                         obj:set_pos(newpos)
 174
 175                         obj:set_hp(obj:get_hp() - damage)
 176                 else
 177                         local do_damage = true
 178                         local do_knockback = true
 179                         local entity_drops = {}
 180                         local luaobj = obj:get_luaentity()
 181                         local objdef = minetest.registered_entities[luaobj.name]
 182
 183                         if objdef and objdef.on_blast then
 184                                 do_damage, do_knockback, entity_drops = objdef.on_blast(luaobj, damage)
 185                         end
 186
 187                         if do_knockback then
 188                                 local obj_vel = obj:get_velocity()
 189                                 obj:set_velocity(calc_velocity(pos, obj_pos,
 190                                                 obj_vel, radius * 10))
 191                         end
 192                         if do_damage then
 193                                 if not obj:get_armor_groups().immortal then
 194                                         obj:punch(obj, 1.0, {
 195                                                 full_punch_interval = 1.0,
 196                                                 damage_groups = {fleshy = damage},
 197                                         }, nil)
 198                                 end
 199                         end
 200                         for _, item in pairs(entity_drops) do
 201                                 add_drop(drops, item)
 202                         end
 203                 end
 204         end
 205 end
 206
 207 local function add_effects(pos, radius, drops)
 208         minetest.add_particle({
 209                 pos = pos,
 210                 velocity = vector.new(),
 211                 acceleration = vector.new(),
 212                 expirationtime = 0.4,
 213                 size = radius * 10,
 214                 collisiondetection = false,
 215                 vertical = false,
 216                 texture = "tnt_boom.png",
 217                 glow = 15,
 218         })
 219         minetest.add_particlespawner({
 220                 amount = 64,
 221                 time = 0.5,
 222                 minpos = vector.subtract(pos, radius / 2),
 223                 maxpos = vector.add(pos, radius / 2),
 224                 minvel = {x = -10, y = -10, z = -10},
 225                 maxvel = {x = 10, y = 10, z = 10},
 226                 minacc = vector.new(),
 227                 maxacc = vector.new(),
 228                 minexptime = 1,
 229                 maxexptime = 2.5,
 230                 minsize = radius * 3,
 231                 maxsize = radius * 5,
 232                 texture = "tnt_smoke.png",
 233         })
 234
 235         -- we just dropped some items. Look at the items entities and pick
 236         -- one of them to use as texture
 237         local texture = "tnt_blast.png" --fallback texture
 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 and def.tiles and def.tiles[1] then
 245                                 texture = def.tiles[1]
 246                         end
 247                 end
 248         end
 249
 250         minetest.add_particlespawner({
 251                 amount = 64,
 252                 time = 0.1,
 253                 minpos = vector.subtract(pos, radius / 2),
 254                 maxpos = vector.add(pos, radius / 2),
 255                 minvel = {x = -3, y = 0, z = -3},
 256                 maxvel = {x = 3, y = 5,  z = 3},
 257                 minacc = {x = 0, y = -10, z = 0},
 258                 maxacc = {x = 0, y = -10, z = 0},
 259                 minexptime = 0.8,
 260                 maxexptime = 2.0,
 261                 minsize = radius * 0.66,
 262                 maxsize = radius * 2,
 263                 texture = texture,
 264                 collisiondetection = true,
 265         })
 266 end
 267
 268 function tnt.burn(pos, nodename)
 269         local name = nodename or minetest.get_node(pos).name
 270         local def = minetest.registered_nodes[name]
 271         if not def then
 272                 return
 273         elseif def.on_ignite then
 274                 def.on_ignite(pos)
 275         elseif minetest.get_item_group(name, "tnt") > 0 then
 276                 minetest.swap_node(pos, {name = name .. "_burning"})
 277                 minetest.sound_play("tnt_ignite", {pos = pos})
 278                 minetest.get_node_timer(pos):start(1)
 279         end
 280 end
 281
 282 local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast, owner, explode_center)
 283         pos = vector.round(pos)
 284         -- scan for adjacent TNT nodes first, and enlarge the explosion
 285         local vm1 = VoxelManip()
 286         local p1 = vector.subtract(pos, 2)
 287         local p2 = vector.add(pos, 2)
 288         local minp, maxp = vm1:read_from_map(p1, p2)
 289         local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
 290         local data = vm1:get_data()
 291         local count = 0
 292         local c_tnt = minetest.get_content_id("tnt:tnt")
 293         local c_tnt_burning = minetest.get_content_id("tnt:tnt_burning")
 294         local c_tnt_boom = minetest.get_content_id("tnt:boom")
 295         local c_air = minetest.get_content_id("air")
 296         -- make sure we still have explosion even when centre node isnt tnt related
 297         if explode_center then
 298                 count = 1
 299         end
 300
 301         for z = pos.z - 2, pos.z + 2 do
 302         for y = pos.y - 2, pos.y + 2 do
 303                 local vi = a:index(pos.x - 2, y, z)
 304                 for x = pos.x - 2, pos.x + 2 do
 305                         local cid = data[vi]
 306                         if cid == c_tnt or cid == c_tnt_boom or cid == c_tnt_burning then
 307                                 count = count + 1
 308                                 data[vi] = c_air
 309                         end
 310                         vi = vi + 1
 311                 end
 312         end
 313         end
 314
 315         vm1:set_data(data)
 316         vm1:write_to_map()
 317
 318         -- recalculate new radius
 319         radius = math.floor(radius * math.pow(count, 1/3))
 320
 321         -- perform the explosion
 322         local vm = VoxelManip()
 323         local pr = PseudoRandom(os.time())
 324         p1 = vector.subtract(pos, radius)
 325         p2 = vector.add(pos, radius)
 326         minp, maxp = vm:read_from_map(p1, p2)
 327         a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
 328         data = vm:get_data()
 329
 330         local drops = {}
 331         local on_blast_queue = {}
 332         local on_construct_queue = {}
 333         basic_flame_on_construct = minetest.registered_nodes["fire:basic_flame"].on_construct
 334
 335         local c_fire = minetest.get_content_id("fire:basic_flame")
 336         for z = -radius, radius do
 337         for y = -radius, radius do
 338         local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
 339         for x = -radius, radius do
 340                 local r = vector.length(vector.new(x, y, z))
 341                 if (radius * radius) / (r * r) >= (pr:next(80, 125) / 100) then
 342                         local cid = data[vi]
 343                         local p = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
 344                         if cid ~= c_air then
 345                                 data[vi] = destroy(drops, p, cid, c_air, c_fire,
 346                                         on_blast_queue, on_construct_queue,
 347                                         ignore_protection, ignore_on_blast, owner)
 348                         end
 349                 end
 350                 vi = vi + 1
 351         end
 352         end
 353         end
 354
 355         vm:set_data(data)
 356         vm:write_to_map()
 357         vm:update_map()
 358         vm:update_liquids()
 359
 360         -- call check_single_for_falling for everything within 1.5x blast radius
 361         for y = -radius * 1.5, radius * 1.5 do
 362         for z = -radius * 1.5, radius * 1.5 do
 363         for x = -radius * 1.5, radius * 1.5 do
 364                 local rad = {x = x, y = y, z = z}
 365                 local s = vector.add(pos, rad)
 366                 local r = vector.length(rad)
 367                 if r / radius < 1.4 then
 368                         minetest.check_single_for_falling(s)
 369                 end
 370         end
 371         end
 372         end
 373
 374         for _, queued_data in pairs(on_blast_queue) do
 375                 local dist = math.max(1, vector.distance(queued_data.pos, pos))
 376                 local intensity = (radius * radius) / (dist * dist)
 377                 local node_drops = queued_data.on_blast(queued_data.pos, intensity)
 378                 if node_drops then
 379                         for _, item in pairs(node_drops) do
 380                                 add_drop(drops, item)
 381                         end
 382                 end
 383         end
 384
 385         for _, queued_data in pairs(on_construct_queue) do
 386                 queued_data.fn(queued_data.pos)
 387         end
 388
 389         minetest.log("action", "TNT owned by " .. owner .. " detonated at " ..
 390                 minetest.pos_to_string(pos) .. " with radius " .. radius)
 391
 392         return drops, radius
 393 end
 394
 395 function tnt.boom(pos, def)
 396         def = def or {}
 397         def.radius = def.radius or 1
 398         def.damage_radius = def.damage_radius or def.radius * 2
 399         local meta = minetest.get_meta(pos)
 400         local owner = meta:get_string("owner")
 401         if not def.explode_center then
 402                 minetest.set_node(pos, {name = "tnt:boom"})
 403         end
 404         local sound = def.sound or "tnt_explode"
 405         minetest.sound_play(sound, {pos = pos, gain = 2.5,
 406                         max_hear_distance = math.min(def.radius * 20, 128)})
 407         local drops, radius = tnt_explode(pos, def.radius, def.ignore_protection,
 408                         def.ignore_on_blast, owner, def.explode_center)
 409         -- append entity drops
 410         local damage_radius = (radius / math.max(1, def.radius)) * def.damage_radius
 411         entity_physics(pos, damage_radius, drops)
 412         if not def.disable_drops then
 413                 eject_drops(drops, pos, radius)
 414         end
 415         add_effects(pos, radius, drops)
 416         minetest.log("action", "A TNT explosion occurred at " .. minetest.pos_to_string(pos) ..
 417                 " with radius " .. radius)
 418 end
 419
 420 minetest.register_node("tnt:boom", {
 421         drawtype = "airlike",
 422         light_source = default.LIGHT_MAX,
 423         walkable = false,
 424         drop = "",
 425         groups = {dig_immediate = 3},
 426         -- unaffected by explosions
 427         on_blast = function() end,
 428 })
 429
 430 minetest.register_node("tnt:gunpowder", {
 431         description = S("Gun Powder"),
 432         drawtype = "raillike",
 433         paramtype = "light",
 434         is_ground_content = false,
 435         sunlight_propagates = true,
 436         walkable = false,
 437         tiles = {
 438                 "tnt_gunpowder_straight.png",
 439                 "tnt_gunpowder_curved.png",
 440                 "tnt_gunpowder_t_junction.png",
 441                 "tnt_gunpowder_crossing.png"
 442         },
 443         inventory_image = "tnt_gunpowder_inventory.png",
 444         wield_image = "tnt_gunpowder_inventory.png",
 445         selection_box = {
 446                 type = "fixed",
 447                 fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 448         },
 449         groups = {dig_immediate = 2, attached_node = 1, flammable = 5,
 450                 connect_to_raillike = minetest.raillike_group("gunpowder")},
 451         sounds = default.node_sound_leaves_defaults(),
 452
 453         on_punch = function(pos, node, puncher)
 454                 if puncher:get_wielded_item():get_name() == "default:torch" then
 455                         minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 456                         minetest.log("action", puncher:get_player_name() ..
 457                                 " ignites tnt:gunpowder at " ..
 458                                 minetest.pos_to_string(pos))
 459                 end
 460         end,
 461         on_blast = function(pos, intensity)
 462                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 463         end,
 464         on_burn = function(pos)
 465                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 466         end,
 467         on_ignite = function(pos, igniter)
 468                 minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 469         end,
 470 })
 471
 472 minetest.register_node("tnt:gunpowder_burning", {
 473         drawtype = "raillike",
 474         paramtype = "light",
 475         sunlight_propagates = true,
 476         walkable = false,
 477         light_source = 5,
 478         tiles = {{
 479                 name = "tnt_gunpowder_burning_straight_animated.png",
 480                 animation = {
 481                         type = "vertical_frames",
 482                         aspect_w = 16,
 483                         aspect_h = 16,
 484                         length = 1,
 485                 }
 486         },
 487         {
 488                 name = "tnt_gunpowder_burning_curved_animated.png",
 489                 animation = {
 490                         type = "vertical_frames",
 491                         aspect_w = 16,
 492                         aspect_h = 16,
 493                         length = 1,
 494                 }
 495         },
 496         {
 497                 name = "tnt_gunpowder_burning_t_junction_animated.png",
 498                 animation = {
 499                         type = "vertical_frames",
 500                         aspect_w = 16,
 501                         aspect_h = 16,
 502                         length = 1,
 503                 }
 504         },
 505         {
 506                 name = "tnt_gunpowder_burning_crossing_animated.png",
 507                 animation = {
 508                         type = "vertical_frames",
 509                         aspect_w = 16,
 510                         aspect_h = 16,
 511                         length = 1,
 512                 }
 513         }},
 514         selection_box = {
 515                 type = "fixed",
 516                 fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 517         },
 518         drop = "",
 519         groups = {
 520                 dig_immediate = 2,
 521                 attached_node = 1,
 522                 connect_to_raillike = minetest.raillike_group("gunpowder")
 523         },
 524         sounds = default.node_sound_leaves_defaults(),
 525         on_timer = function(pos, elapsed)
 526                 for dx = -1, 1 do
 527                 for dz = -1, 1 do
 528                         if math.abs(dx) + math.abs(dz) == 1 then
 529                                 for dy = -1, 1 do
 530                                         tnt.burn({
 531                                                 x = pos.x + dx,
 532                                                 y = pos.y + dy,
 533                                                 z = pos.z + dz,
 534                                         })
 535                                 end
 536                         end
 537                 end
 538                 end
 539                 minetest.remove_node(pos)
 540         end,
 541         -- unaffected by explosions
 542         on_blast = function() end,
 543         on_construct = function(pos)
 544                 minetest.sound_play("tnt_gunpowder_burning", {pos = pos, gain = 2})
 545                 minetest.get_node_timer(pos):start(1)
 546         end,
 547 })
 548
 549 minetest.register_craft({
 550         output = "tnt:gunpowder 5",
 551         type = "shapeless",
 552         recipe = {"default:coal_lump", "default:gravel"}
 553 })
 554
 555 minetest.register_craftitem("tnt:tnt_stick", {
 556         description = S("TNT Stick"),
 557         inventory_image = "tnt_tnt_stick.png",
 558         groups = {flammable = 5},
 559 })
 560
 561 if enable_tnt then
 562         minetest.register_craft({
 563                 output = "tnt:tnt_stick 2",
 564                 recipe = {
 565                         {"tnt:gunpowder", "", "tnt:gunpowder"},
 566                         {"tnt:gunpowder", "default:paper", "tnt:gunpowder"},
 567                         {"tnt:gunpowder", "", "tnt:gunpowder"},
 568                 }
 569         })
 570
 571         minetest.register_craft({
 572                 output = "tnt:tnt",
 573                 recipe = {
 574                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"},
 575                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"},
 576                         {"tnt:tnt_stick", "tnt:tnt_stick", "tnt:tnt_stick"}
 577                 }
 578         })
 579
 580         minetest.register_abm({
 581                 label = "TNT ignition",
 582                 nodenames = {"group:tnt", "tnt:gunpowder"},
 583                 neighbors = {"fire:basic_flame", "default:lava_source", "default:lava_flowing"},
 584                 interval = 4,
 585                 chance = 1,
 586                 action = function(pos, node)
 587                         tnt.burn(pos, node.name)
 588                 end,
 589         })
 590 end
 591
 592 function tnt.register_tnt(def)
 593         local name
 594         if not def.name:find(':') then
 595                 name = "tnt:" .. def.name
 596         else
 597                 name = def.name
 598                 def.name = def.name:match(":([%w_]+)")
 599         end
 600         if not def.tiles then def.tiles = {} end
 601         local tnt_top = def.tiles.top or def.name .. "_top.png"
 602         local tnt_bottom = def.tiles.bottom or def.name .. "_bottom.png"
 603         local tnt_side = def.tiles.side or def.name .. "_side.png"
 604         local tnt_burning = def.tiles.burning or def.name .. "_top_burning_animated.png"
 605         if not def.damage_radius then def.damage_radius = def.radius * 2 end
 606
 607         if enable_tnt then
 608                 minetest.register_node(":" .. name, {
 609                         description = def.description,
 610                         tiles = {tnt_top, tnt_bottom, tnt_side},
 611                         is_ground_content = false,
 612                         groups = {dig_immediate = 2, mesecon = 2, tnt = 1, flammable = 5},
 613                         sounds = default.node_sound_wood_defaults(),
 614                         after_place_node = function(pos, placer)
 615                                 if placer:is_player() then
 616                                         local meta = minetest.get_meta(pos)
 617                                         meta:set_string("owner", placer:get_player_name())
 618                                 end
 619                         end,
 620                         on_punch = function(pos, node, puncher)
 621                                 if puncher:get_wielded_item():get_name() == "default:torch" then
 622                                         minetest.swap_node(pos, {name = name .. "_burning"})
 623                                         minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 624                                         minetest.log("action", puncher:get_player_name() ..
 625                                                 " ignites " .. node.name .. " at " ..
 626                                                 minetest.pos_to_string(pos))
 627                                 end
 628                         end,
 629                         on_blast = function(pos, intensity)
 630                                 minetest.after(0.1, function()
 631                                         tnt.boom(pos, def)
 632                                 end)
 633                         end,
 634                         mesecons = {effector =
 635                                 {action_on =
 636                                         function(pos)
 637                                                 tnt.boom(pos, def)
 638                                         end
 639                                 }
 640                         },
 641                         on_burn = function(pos)
 642                                 minetest.swap_node(pos, {name = name .. "_burning"})
 643                                 minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 644                         end,
 645                         on_ignite = function(pos, igniter)
 646                                 minetest.swap_node(pos, {name = name .. "_burning"})
 647                                 minetest.registered_nodes[name .. "_burning"].on_construct(pos)
 648                         end,
 649                 })
 650         end
 651
 652         minetest.register_node(":" .. name .. "_burning", {
 653                 tiles = {
 654                         {
 655                                 name = tnt_burning,
 656                                 animation = {
 657                                         type = "vertical_frames",
 658                                         aspect_w = 16,
 659                                         aspect_h = 16,
 660                                         length = 1,
 661                                 }
 662                         },
 663                         tnt_bottom, tnt_side
 664                         },
 665                 light_source = 5,
 666                 drop = "",
 667                 sounds = default.node_sound_wood_defaults(),
 668                 groups = {falling_node = 1},
 669                 on_timer = function(pos, elapsed)
 670                         tnt.boom(pos, def)
 671                 end,
 672                 -- unaffected by explosions
 673                 on_blast = function() end,
 674                 on_construct = function(pos)
 675                         minetest.sound_play("tnt_ignite", {pos = pos})
 676                         minetest.get_node_timer(pos):start(4)
 677                         minetest.check_for_falling(pos)
 678                 end,
 679         })
 680 end
 681
 682 tnt.register_tnt({
 683         name = "tnt:tnt",
 684         description = S("TNT"),
 685         radius = tnt_radius,
 686 })