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.dig = table.dig or
81 {name = "default_dig_crumbly", gain = 0.4}
82 table.place = table.place or
83 {name = "default_place_node", gain = 1.0}
84 default.node_sound_defaults(table)
88 function default.node_sound_glass_defaults(table)
90 table.footstep = table.footstep or
91 {name = "default_glass_footstep", gain = 0.3}
92 table.dig = table.dig or
93 {name = "default_glass_footstep", gain = 0.5}
94 table.dug = table.dug or
95 {name = "default_break_glass", gain = 1.0}
96 default.node_sound_defaults(table)
100 function default.node_sound_metal_defaults(table)
102 table.footstep = table.footstep or
103 {name = "default_metal_footstep", gain = 0.4}
104 table.dig = table.dig or
105 {name = "default_dig_metal", gain = 0.5}
106 table.dug = table.dug or
107 {name = "default_dug_metal", gain = 0.5}
108 table.place = table.place or
109 {name = "default_place_node_metal", gain = 0.5}
110 default.node_sound_defaults(table)
114 function default.node_sound_water_defaults(table)
116 table.footstep = table.footstep or
117 {name = "default_water_footstep", gain = 0.2}
118 default.node_sound_defaults(table)
126 default.cool_lava = function(pos, node)
127 if node.name == "default:lava_source" then
128 minetest.set_node(pos, {name = "default:obsidian"})
130 minetest.set_node(pos, {name = "default:stone"})
132 minetest.sound_play("default_cool_lava",
133 {pos = pos, max_hear_distance = 16, gain = 0.25})
136 minetest.register_abm({
137 label = "Lava cooling",
138 nodenames = {"default:lava_source", "default:lava_flowing"},
139 neighbors = {"group:cools_lava", "group:water"},
143 action = function(...)
144 default.cool_lava(...)
150 -- optimized helper to put all items in an inventory into a drops list
153 function default.get_inventory_drops(pos, inventory, drops)
154 local inv = minetest.get_meta(pos):get_inventory()
156 for i = 1, inv:get_size(inventory) do
157 local stack = inv:get_stack(inventory, i)
158 if stack:get_count() > 0 then
159 drops[n+1] = stack:to_table()
166 -- Papyrus and cactus growing
169 -- wrapping the functions in abm action is necessary to make overriding them possible
171 function default.grow_cactus(pos, node)
172 if node.param2 >= 4 then
176 if minetest.get_item_group(minetest.get_node(pos).name, "sand") == 0 then
181 while node.name == "default:cactus" and height < 4 do
184 node = minetest.get_node(pos)
186 if height == 4 or node.name ~= "air" then
189 if minetest.get_node_light(pos) < 13 then
192 minetest.set_node(pos, {name = "default:cactus"})
196 function default.grow_papyrus(pos, node)
198 local name = minetest.get_node(pos).name
199 if name ~= "default:dirt_with_grass" and name ~= "default:dirt" then
202 if not minetest.find_node_near(pos, 3, {"group:water"}) then
207 while node.name == "default:papyrus" and height < 4 do
210 node = minetest.get_node(pos)
212 if height == 4 or node.name ~= "air" then
215 if minetest.get_node_light(pos) < 13 then
218 minetest.set_node(pos, {name = "default:papyrus"})
222 minetest.register_abm({
223 label = "Grow cactus",
224 nodenames = {"default:cactus"},
225 neighbors = {"group:sand"},
228 action = function(...)
229 default.grow_cactus(...)
233 minetest.register_abm({
234 label = "Grow papyrus",
235 nodenames = {"default:papyrus"},
236 neighbors = {"default:dirt", "default:dirt_with_grass"},
239 action = function(...)
240 default.grow_papyrus(...)
249 function default.dig_up(pos, node, digger)
250 if digger == nil then return end
251 local np = {x = pos.x, y = pos.y + 1, z = pos.z}
252 local nn = minetest.get_node(np)
253 if nn.name == node.name then
254 minetest.node_dig(np, nn, digger)
260 -- Fence registration helper
263 function default.register_fence(name, def)
264 minetest.register_craft({
265 output = name .. " 4",
267 { def.material, 'group:stick', def.material },
268 { def.material, 'group:stick', def.material },
272 local fence_texture = "default_fence_overlay.png^" .. def.texture ..
273 "^default_fence_overlay.png^[makealpha:255,126,126"
274 -- Allow almost everything to be overridden
275 local default_fields = {
277 drawtype = "nodebox",
280 fixed = {{-1/8, -1/2, -1/8, 1/8, 1/2, 1/8}},
283 connect_front = {{-1/16,3/16,-1/2,1/16,5/16,-1/8},
284 {-1/16,-5/16,-1/2,1/16,-3/16,-1/8}},
285 connect_left = {{-1/2,3/16,-1/16,-1/8,5/16,1/16},
286 {-1/2,-5/16,-1/16,-1/8,-3/16,1/16}},
287 connect_back = {{-1/16,3/16,1/8,1/16,5/16,1/2},
288 {-1/16,-5/16,1/8,1/16,-3/16,1/2}},
289 connect_right = {{1/8,3/16,-1/16,1/2,5/16,1/16},
290 {1/8,-5/16,-1/16,1/2,-3/16,1/16}},
292 connects_to = {"group:fence", "group:wood", "group:tree"},
293 inventory_image = fence_texture,
294 wield_image = fence_texture,
295 tiles = {def.texture},
296 sunlight_propagates = true,
297 is_ground_content = false,
300 for k, v in pairs(default_fields) do
306 -- Always add to the fence group, even if no group provided
312 minetest.register_node(name, def)
320 -- Prevent decay of placed leaves
322 default.after_place_leaves = function(pos, placer, itemstack, pointed_thing)
323 if placer and not placer:get_player_control().sneak then
324 local node = minetest.get_node(pos)
326 minetest.set_node(pos, node)
332 minetest.register_abm({
333 label = "Leaf decay",
334 nodenames = {"group:leafdecay"},
340 action = function(pos, node, _, _)
341 -- Check if leaf is placed
342 if node.param2 ~= 0 then
346 local rad = minetest.registered_nodes[node.name].groups.leafdecay
347 -- Assume ignore is a trunk, to make this
348 -- work at the border of a loaded area
349 if minetest.find_node_near(pos, rad, {"ignore", "group:tree"}) then
353 local itemstacks = minetest.get_node_drops(node.name)
354 for _, itemname in ipairs(itemstacks) do
355 if itemname ~= node.name or
356 minetest.get_item_group(node.name, "leafdecay_drop") ~= 0 then
358 x = pos.x - 0.5 + math.random(),
359 y = pos.y - 0.5 + math.random(),
360 z = pos.z - 0.5 + math.random(),
362 minetest.add_item(p_drop, itemname)
366 minetest.remove_node(pos)
367 minetest.check_for_falling(pos)
373 -- Convert dirt to something that fits the environment
376 minetest.register_abm({
377 label = "Grass spread",
378 nodenames = {"default:dirt"},
388 action = function(pos, node)
389 -- Check for darkness: night, shadow or under a light-blocking node
390 -- Returns if ignore above
391 local above = {x = pos.x, y = pos.y + 1, z = pos.z}
392 if (minetest.get_node_light(above) or 0) < 13 then
396 -- Look for spreading dirt-type neighbours
397 local p2 = minetest.find_node_near(pos, 1, "group:spreading_dirt_type")
399 local n3 = minetest.get_node(p2)
400 minetest.set_node(pos, {name = n3.name})
404 -- Else, any seeding nodes on top?
405 local name = minetest.get_node(above).name
406 -- Snow check is cheapest, so comes first
407 if name == "default:snow" then
408 minetest.set_node(pos, {name = "default:dirt_with_snow"})
409 -- Most likely case first
410 elseif minetest.get_item_group(name, "grass") ~= 0 then
411 minetest.set_node(pos, {name = "default:dirt_with_grass"})
412 elseif minetest.get_item_group(name, "dry_grass") ~= 0 then
413 minetest.set_node(pos, {name = "default:dirt_with_dry_grass"})
420 -- Grass and dry grass removed in darkness
423 minetest.register_abm({
424 label = "Grass covered",
425 nodenames = {"group:spreading_dirt_type"},
429 action = function(pos, node)
430 local above = {x = pos.x, y = pos.y + 1, z = pos.z}
431 local name = minetest.get_node(above).name
432 local nodedef = minetest.registered_nodes[name]
433 if name ~= "ignore" and nodedef and not ((nodedef.sunlight_propagates or
434 nodedef.paramtype == "light") and
435 nodedef.liquidtype == "none") then
436 minetest.set_node(pos, {name = "default:dirt"})
443 -- Moss growth on cobble near water
446 minetest.register_abm({
447 label = "Moss growth",
448 nodenames = {"default:cobble", "stairs:slab_cobble", "stairs:stair_cobble", "walls:cobble"},
449 neighbors = {"group:water"},
453 action = function(pos, node)
454 if node.name == "default:cobble" then
455 minetest.set_node(pos, {name = "default:mossycobble"})
456 elseif node.name == "stairs:slab_cobble" then
457 minetest.set_node(pos, {name = "stairs:slab_mossycobble", param2 = node.param2})
458 elseif node.name == "stairs:stair_cobble" then
459 minetest.set_node(pos, {name = "stairs:stair_mossycobble", param2 = node.param2})
460 elseif node.name == "walls:cobble" then
461 minetest.set_node(pos, {name = "walls:mossycobble", param2 = node.param2})
468 -- Checks if specified volume intersects a protected volume
471 function default.intersects_protection(minp, maxp, player_name, interval)
472 -- 'interval' is the largest allowed interval for the 3D lattice of checks
474 -- Compute the optimal float step 'd' for each axis so that all corners and
475 -- borders are checked. 'd' will be smaller or equal to 'interval'.
476 -- Subtracting 1e-4 ensures that the max co-ordinate will be reached by the
477 -- for loop (which might otherwise not be the case due to rounding errors).
479 for _, c in pairs({"x", "y", "z"}) do
480 if maxp[c] > minp[c] then
481 d[c] = (maxp[c] - minp[c]) / math.ceil((maxp[c] - minp[c]) / interval) - 1e-4
482 elseif maxp[c] == minp[c] then
483 d[c] = 1 -- Any value larger than 0 to avoid division by zero
484 else -- maxp[c] < minp[c], print error and treat as protection intersected
485 minetest.log("error", "maxp < minp in 'default.intersects_protection()'")
490 for zf = minp.z, maxp.z, d.z do
491 local z = math.floor(zf + 0.5)
492 for yf = minp.y, maxp.y, d.y do
493 local y = math.floor(yf + 0.5)
494 for xf = minp.x, maxp.x, d.x do
495 local x = math.floor(xf + 0.5)
496 if minetest.is_protected({x = x, y = y, z = z}, player_name) then
508 -- Coral death near air
511 minetest.register_abm({
512 nodenames = {"default:coral_brown", "default:coral_orange"},
517 action = function(pos, node)
518 minetest.set_node(pos, {name = "default:coral_skeleton"})