1 -- mods/default/functions.lua
7 function default.node_sound_defaults(table)
9 table.footstep = table.footstep or
10 {name = "", gain = 1.0}
11 table.dug = table.dug or
12 {name = "default_dug_node", gain = 0.25}
13 table.place = table.place or
14 {name = "default_place_node_hard", gain = 1.0}
18 function default.node_sound_stone_defaults(table)
20 table.footstep = table.footstep or
21 {name = "default_hard_footstep", gain = 0.3}
22 table.dug = table.dug or
23 {name = "default_hard_footstep", gain = 1.0}
24 default.node_sound_defaults(table)
28 function default.node_sound_dirt_defaults(table)
30 table.footstep = table.footstep or
31 {name = "default_dirt_footstep", gain = 0.4}
32 table.dug = table.dug or
33 {name = "default_dirt_footstep", gain = 1.0}
34 table.place = table.place or
35 {name = "default_place_node", gain = 1.0}
36 default.node_sound_defaults(table)
40 function default.node_sound_sand_defaults(table)
42 table.footstep = table.footstep or
43 {name = "default_sand_footstep", gain = 0.12}
44 table.dug = table.dug or
45 {name = "default_sand_footstep", gain = 0.24}
46 table.place = table.place or
47 {name = "default_place_node", gain = 1.0}
48 default.node_sound_defaults(table)
52 function default.node_sound_gravel_defaults(table)
54 table.footstep = table.footstep or
55 {name = "default_gravel_footstep", gain = 0.4}
56 table.dug = table.dug or
57 {name = "default_gravel_footstep", gain = 1.0}
58 table.place = table.place or
59 {name = "default_place_node", gain = 1.0}
60 default.node_sound_defaults(table)
64 function default.node_sound_wood_defaults(table)
66 table.footstep = table.footstep or
67 {name = "default_wood_footstep", gain = 0.3}
68 table.dug = table.dug or
69 {name = "default_wood_footstep", gain = 1.0}
70 default.node_sound_defaults(table)
74 function default.node_sound_leaves_defaults(table)
76 table.footstep = table.footstep or
77 {name = "default_grass_footstep", gain = 0.45}
78 table.dug = table.dug or
79 {name = "default_grass_footstep", gain = 0.7}
80 table.place = table.place or
81 {name = "default_place_node", gain = 1.0}
82 default.node_sound_defaults(table)
86 function default.node_sound_glass_defaults(table)
88 table.footstep = table.footstep or
89 {name = "default_glass_footstep", gain = 0.3}
90 table.dig = table.dig or
91 {name = "default_glass_footstep", gain = 0.5}
92 table.dug = table.dug or
93 {name = "default_break_glass", gain = 1.0}
94 default.node_sound_defaults(table)
98 function default.node_sound_metal_defaults(table)
100 table.footstep = table.footstep or
101 {name = "default_metal_footstep", gain = 0.4}
102 table.dig = table.dig or
103 {name = "default_dig_metal", gain = 0.5}
104 table.dug = table.dug or
105 {name = "default_dug_metal", gain = 0.5}
106 table.place = table.place or
107 {name = "default_place_node_metal", gain = 0.5}
108 default.node_sound_defaults(table)
112 function default.node_sound_water_defaults(table)
114 table.footstep = table.footstep or
115 {name = "default_water_footstep", gain = 0.2}
116 default.node_sound_defaults(table)
124 default.cool_lava = function(pos, node)
125 if node.name == "default:lava_source" then
126 minetest.set_node(pos, {name = "default:obsidian"})
128 minetest.set_node(pos, {name = "default:stone"})
130 minetest.sound_play("default_cool_lava",
131 {pos = pos, max_hear_distance = 16, gain = 0.25})
134 if minetest.setting_getbool("enable_lavacooling") ~= false then
135 minetest.register_abm({
136 label = "Lava cooling",
137 nodenames = {"default:lava_source", "default:lava_flowing"},
138 neighbors = {"group:cools_lava", "group:water"},
142 action = default.cool_lava,
147 -- optimized helper to put all items in an inventory into a drops list
150 function default.get_inventory_drops(pos, inventory, drops)
151 local inv = minetest.get_meta(pos):get_inventory()
153 for i = 1, inv:get_size(inventory) do
154 local stack = inv:get_stack(inventory, i)
155 if stack:get_count() > 0 then
156 drops[n+1] = stack:to_table()
163 -- Papyrus and cactus growing
166 -- wrapping the functions in abm action is necessary to make overriding them possible
168 function default.grow_cactus(pos, node)
169 if node.param2 >= 4 then
173 if minetest.get_item_group(minetest.get_node(pos).name, "sand") == 0 then
178 while node.name == "default:cactus" and height < 4 do
181 node = minetest.get_node(pos)
183 if height == 4 or node.name ~= "air" then
186 if minetest.get_node_light(pos) < 13 then
189 minetest.set_node(pos, {name = "default:cactus"})
193 function default.grow_papyrus(pos, node)
195 local name = minetest.get_node(pos).name
196 if name ~= "default:dirt_with_grass" and name ~= "default:dirt" then
199 if not minetest.find_node_near(pos, 3, {"group:water"}) then
204 while node.name == "default:papyrus" and height < 4 do
207 node = minetest.get_node(pos)
209 if height == 4 or node.name ~= "air" then
212 if minetest.get_node_light(pos) < 13 then
215 minetest.set_node(pos, {name = "default:papyrus"})
219 minetest.register_abm({
220 label = "Grow cactus",
221 nodenames = {"default:cactus"},
222 neighbors = {"group:sand"},
225 action = default.grow_cactus
228 minetest.register_abm({
229 label = "Grow papyrus",
230 nodenames = {"default:papyrus"},
231 neighbors = {"default:dirt", "default:dirt_with_grass"},
234 action = default.grow_papyrus
242 function default.dig_up(pos, node, digger)
243 if digger == nil then return end
244 local np = {x = pos.x, y = pos.y + 1, z = pos.z}
245 local nn = minetest.get_node(np)
246 if nn.name == node.name then
247 minetest.node_dig(np, nn, digger)
253 -- Fence registration helper
256 function default.register_fence(name, def)
257 minetest.register_craft({
258 output = name .. " 4",
260 { def.material, 'group:stick', def.material },
261 { def.material, 'group:stick', def.material },
265 local fence_texture = "default_fence_overlay.png^" .. def.texture ..
266 "^default_fence_overlay.png^[makealpha:255,126,126"
267 -- Allow almost everything to be overridden
268 local default_fields = {
270 drawtype = "nodebox",
273 fixed = {{-1/8, -1/2, -1/8, 1/8, 1/2, 1/8}},
276 connect_front = {{-1/16,3/16,-1/2,1/16,5/16,-1/8},
277 {-1/16,-5/16,-1/2,1/16,-3/16,-1/8}},
278 connect_left = {{-1/2,3/16,-1/16,-1/8,5/16,1/16},
279 {-1/2,-5/16,-1/16,-1/8,-3/16,1/16}},
280 connect_back = {{-1/16,3/16,1/8,1/16,5/16,1/2},
281 {-1/16,-5/16,1/8,1/16,-3/16,1/2}},
282 connect_right = {{1/8,3/16,-1/16,1/2,5/16,1/16},
283 {1/8,-5/16,-1/16,1/2,-3/16,1/16}},
285 connects_to = {"group:fence", "group:wood", "group:tree"},
286 inventory_image = fence_texture,
287 wield_image = fence_texture,
288 tiles = {def.texture},
289 sunlight_propagates = true,
290 is_ground_content = false,
293 for k, v in pairs(default_fields) do
299 -- Always add to the fence group, even if no group provided
305 minetest.register_node(name, def)
313 -- Prevent decay of placed leaves
315 default.after_place_leaves = function(pos, placer, itemstack, pointed_thing)
316 if placer and not placer:get_player_control().sneak then
317 local node = minetest.get_node(pos)
319 minetest.set_node(pos, node)
324 local function leafdecay_after_destruct(pos, oldnode, def)
325 for _, v in pairs(minetest.find_nodes_in_area(vector.subtract(pos, def.radius),
326 vector.add(pos, def.radius), def.leaves)) do
327 local node = minetest.get_node(v)
328 local timer = minetest.get_node_timer(v)
329 if node.param2 == 0 and not timer:is_started() then
330 timer:start(math.random(20, 120) / 10)
335 local function leafdecay_on_timer(pos, def)
336 if minetest.find_node_near(pos, def.radius, def.trunks) then
340 local node = minetest.get_node(pos)
341 local drops = minetest.get_node_drops(node.name)
342 for _, item in ipairs(drops) do
344 for _, v in pairs(def.leaves) do
349 if minetest.get_item_group(item, "leafdecay_drop") ~= 0 or
352 x = pos.x - 0.5 + math.random(),
353 y = pos.y - 0.5 + math.random(),
354 z = pos.z - 0.5 + math.random(),
359 minetest.remove_node(pos)
360 minetest.check_for_falling(pos)
363 function default.register_leafdecay(def)
367 for _, v in pairs(def.trunks) do
368 minetest.override_item(v, {
369 after_destruct = function(pos, oldnode)
370 leafdecay_after_destruct(pos, oldnode, def)
374 for _, v in pairs(def.leaves) do
375 minetest.override_item(v, {
376 on_timer = function(pos)
377 leafdecay_on_timer(pos, def)
384 -- Convert dirt to something that fits the environment
387 minetest.register_abm({
388 label = "Grass spread",
389 nodenames = {"default:dirt"},
399 action = function(pos, node)
400 -- Check for darkness: night, shadow or under a light-blocking node
401 -- Returns if ignore above
402 local above = {x = pos.x, y = pos.y + 1, z = pos.z}
403 if (minetest.get_node_light(above) or 0) < 13 then
407 -- Look for spreading dirt-type neighbours
408 local p2 = minetest.find_node_near(pos, 1, "group:spreading_dirt_type")
410 local n3 = minetest.get_node(p2)
411 minetest.set_node(pos, {name = n3.name})
415 -- Else, any seeding nodes on top?
416 local name = minetest.get_node(above).name
417 -- Snow check is cheapest, so comes first
418 if name == "default:snow" then
419 minetest.set_node(pos, {name = "default:dirt_with_snow"})
420 -- Most likely case first
421 elseif minetest.get_item_group(name, "grass") ~= 0 then
422 minetest.set_node(pos, {name = "default:dirt_with_grass"})
423 elseif minetest.get_item_group(name, "dry_grass") ~= 0 then
424 minetest.set_node(pos, {name = "default:dirt_with_dry_grass"})
431 -- Grass and dry grass removed in darkness
434 minetest.register_abm({
435 label = "Grass covered",
436 nodenames = {"group:spreading_dirt_type"},
440 action = function(pos, node)
441 local above = {x = pos.x, y = pos.y + 1, z = pos.z}
442 local name = minetest.get_node(above).name
443 local nodedef = minetest.registered_nodes[name]
444 if name ~= "ignore" and nodedef and not ((nodedef.sunlight_propagates or
445 nodedef.paramtype == "light") and
446 nodedef.liquidtype == "none") then
447 minetest.set_node(pos, {name = "default:dirt"})
454 -- Moss growth on cobble near water
457 minetest.register_abm({
458 label = "Moss growth",
459 nodenames = {"default:cobble", "stairs:slab_cobble", "stairs:stair_cobble", "walls:cobble"},
460 neighbors = {"group:water"},
464 action = function(pos, node)
465 if node.name == "default:cobble" then
466 minetest.set_node(pos, {name = "default:mossycobble"})
467 elseif node.name == "stairs:slab_cobble" then
468 minetest.set_node(pos, {name = "stairs:slab_mossycobble", param2 = node.param2})
469 elseif node.name == "stairs:stair_cobble" then
470 minetest.set_node(pos, {name = "stairs:stair_mossycobble", param2 = node.param2})
471 elseif node.name == "walls:cobble" then
472 minetest.set_node(pos, {name = "walls:mossycobble", param2 = node.param2})
479 -- Checks if specified volume intersects a protected volume
482 function default.intersects_protection(minp, maxp, player_name, interval)
483 -- 'interval' is the largest allowed interval for the 3D lattice of checks
485 -- Compute the optimal float step 'd' for each axis so that all corners and
486 -- borders are checked. 'd' will be smaller or equal to 'interval'.
487 -- Subtracting 1e-4 ensures that the max co-ordinate will be reached by the
488 -- for loop (which might otherwise not be the case due to rounding errors).
490 for _, c in pairs({"x", "y", "z"}) do
491 if maxp[c] > minp[c] then
492 d[c] = (maxp[c] - minp[c]) / math.ceil((maxp[c] - minp[c]) / interval) - 1e-4
493 elseif maxp[c] == minp[c] then
494 d[c] = 1 -- Any value larger than 0 to avoid division by zero
495 else -- maxp[c] < minp[c], print error and treat as protection intersected
496 minetest.log("error", "maxp < minp in 'default.intersects_protection()'")
501 for zf = minp.z, maxp.z, d.z do
502 local z = math.floor(zf + 0.5)
503 for yf = minp.y, maxp.y, d.y do
504 local y = math.floor(yf + 0.5)
505 for xf = minp.x, maxp.x, d.x do
506 local x = math.floor(xf + 0.5)
507 if minetest.is_protected({x = x, y = y, z = z}, player_name) then
519 -- Coral death near air
522 minetest.register_abm({
523 nodenames = {"default:coral_brown", "default:coral_orange"},
528 action = function(pos, node)
529 minetest.set_node(pos, {name = "default:coral_skeleton"})
535 -- NOTICE: This method is not an official part of the API yet!
536 -- This method may change in future.
539 function default.can_interact_with_node(player, pos)
541 if minetest.check_player_privs(player, "protection_bypass") then
548 local meta = minetest.get_meta(pos)
549 local owner = meta:get_string("owner")
551 if not owner or owner == "" or owner == player:get_player_name() then
555 -- is player wielding the right key?
556 local item = player:get_wielded_item()
557 if item:get_name() == "default:key" then
558 local key_meta = item:get_meta()
560 if key_meta:get_string("secret") == "" then
561 local key_oldmeta = item:get_metadata()
562 if key_oldmeta == "" or not minetest.parse_json(key_oldmeta) then
566 key_meta:set_string("secret", minetest.parse_json(key_oldmeta).secret)
567 item:set_metadata("")
570 return meta:get_string("key_lock_secret") == key_meta:get_string("secret")