1 local random = math.random
4 -- Grow trees from saplings
9 function default.can_grow(pos)
10 local node_under = minetest.get_node_or_nil({x = pos.x, y = pos.y - 1, z = pos.z})
11 if not node_under then
14 local name_under = node_under.name
15 local is_soil = minetest.get_item_group(name_under, "soil")
19 local light_level = minetest.get_node_light(pos)
20 if not light_level or light_level < 13 then
27 -- 'is snow nearby' function
29 local function is_snow_nearby(pos)
30 return minetest.find_node_near(pos, 1, {"group:snowy"})
36 function default.grow_sapling(pos)
37 if not default.can_grow(pos) then
38 -- try again 5 min later
39 minetest.get_node_timer(pos):start(300)
43 local mg_name = minetest.get_mapgen_setting("mg_name")
44 local node = minetest.get_node(pos)
45 if node.name == "default:sapling" then
46 minetest.log("action", "A sapling grows into a tree at "..
47 minetest.pos_to_string(pos))
48 if mg_name == "v6" then
49 default.grow_tree(pos, random(1, 4) == 1)
51 default.grow_new_apple_tree(pos)
53 elseif node.name == "default:junglesapling" then
54 minetest.log("action", "A jungle sapling grows into a tree at "..
55 minetest.pos_to_string(pos))
56 if mg_name == "v6" then
57 default.grow_jungle_tree(pos)
59 default.grow_new_jungle_tree(pos)
61 elseif node.name == "default:pine_sapling" then
62 minetest.log("action", "A pine sapling grows into a tree at "..
63 minetest.pos_to_string(pos))
64 local snow = is_snow_nearby(pos)
65 if mg_name == "v6" then
66 default.grow_pine_tree(pos, snow)
68 default.grow_new_snowy_pine_tree(pos)
70 default.grow_new_pine_tree(pos)
72 elseif node.name == "default:acacia_sapling" then
73 minetest.log("action", "An acacia sapling grows into a tree at "..
74 minetest.pos_to_string(pos))
75 default.grow_new_acacia_tree(pos)
76 elseif node.name == "default:aspen_sapling" then
77 minetest.log("action", "An aspen sapling grows into a tree at "..
78 minetest.pos_to_string(pos))
79 default.grow_new_aspen_tree(pos)
80 elseif node.name == "default:bush_sapling" then
81 minetest.log("action", "A bush sapling grows into a bush at "..
82 minetest.pos_to_string(pos))
83 default.grow_bush(pos)
84 elseif node.name == "default:acacia_bush_sapling" then
85 minetest.log("action", "An acacia bush sapling grows into a bush at "..
86 minetest.pos_to_string(pos))
87 default.grow_acacia_bush(pos)
91 minetest.register_lbm({
92 name = "default:convert_saplings_to_node_timer",
93 nodenames = {"default:sapling", "default:junglesapling",
94 "default:pine_sapling", "default:acacia_sapling",
95 "default:aspen_sapling"},
96 action = function(pos)
97 minetest.get_node_timer(pos):start(math.random(300, 1500))
105 -- Apple tree and jungle tree trunk and leaves function
107 local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
108 height, size, iters, is_apple_tree)
109 local x, y, z = pos.x, pos.y, pos.z
110 local c_air = minetest.get_content_id("air")
111 local c_ignore = minetest.get_content_id("ignore")
112 local c_apple = minetest.get_content_id("default:apple")
115 data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
116 for yy = y + 1, y + height - 1 do
117 local vi = a:index(x, yy, z)
118 local node_id = data[vi]
119 if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
124 -- Force leaves near the trunk
125 for z_dist = -1, 1 do
126 for y_dist = -size, 1 do
127 local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
128 for x_dist = -1, 1 do
129 if data[vi] == c_air or data[vi] == c_ignore then
130 if is_apple_tree and random(1, 8) == 1 then
133 data[vi] = leaves_cid
141 -- Randomly add leaves in 2x2x2 clusters.
143 local clust_x = x + random(-size, size - 1)
144 local clust_y = y + height + random(-size, 0)
145 local clust_z = z + random(-size, size - 1)
150 local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
151 if data[vi] == c_air or data[vi] == c_ignore then
152 if is_apple_tree and random(1, 8) == 1 then
155 data[vi] = leaves_cid
167 function default.grow_tree(pos, is_apple_tree, bad)
169 NOTE: Tree-placing code is currently duplicated in the engine
170 and in games that have saplings; both are deprecated but not
174 error("Deprecated use of default.grow_tree")
177 local x, y, z = pos.x, pos.y, pos.z
178 local height = random(4, 5)
179 local c_tree = minetest.get_content_id("default:tree")
180 local c_leaves = minetest.get_content_id("default:leaves")
182 local vm = minetest.get_voxel_manip()
183 local minp, maxp = vm:read_from_map(
184 {x = x - 2, y = y, z = z - 2},
185 {x = x + 2, y = y + height + 1, z = z + 2}
187 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
188 local data = vm:get_data()
190 add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
200 function default.grow_jungle_tree(pos, bad)
202 NOTE: Jungletree-placing code is currently duplicated in the engine
203 and in games that have saplings; both are deprecated but not
207 error("Deprecated use of default.grow_jungle_tree")
210 local x, y, z = pos.x, pos.y, pos.z
211 local height = random(8, 12)
212 local c_air = minetest.get_content_id("air")
213 local c_ignore = minetest.get_content_id("ignore")
214 local c_jungletree = minetest.get_content_id("default:jungletree")
215 local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
217 local vm = minetest.get_voxel_manip()
218 local minp, maxp = vm:read_from_map(
219 {x = x - 3, y = y - 1, z = z - 3},
220 {x = x + 3, y = y + height + 1, z = z + 3}
222 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
223 local data = vm:get_data()
225 add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves,
226 height, 3, 30, false)
229 for z_dist = -1, 1 do
230 local vi_1 = a:index(x - 1, y - 1, z + z_dist)
231 local vi_2 = a:index(x - 1, y, z + z_dist)
232 for x_dist = -1, 1 do
233 if random(1, 3) >= 2 then
234 if data[vi_1] == c_air or data[vi_1] == c_ignore then
235 data[vi_1] = c_jungletree
236 elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
237 data[vi_2] = c_jungletree
251 -- Pine tree from mg mapgen mod, design by sfan5, pointy top added by paramat
253 local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
254 local node_id = data[vi]
255 if node_id == c_air or node_id == c_ignore or node_id == c_snow then
256 data[vi] = c_pine_needles
260 local function add_snow(data, vi, c_air, c_ignore, c_snow)
261 local node_id = data[vi]
262 if node_id == c_air or node_id == c_ignore then
267 function default.grow_pine_tree(pos, snow)
268 local x, y, z = pos.x, pos.y, pos.z
269 local maxy = y + random(9, 13) -- Trunk top
271 local c_air = minetest.get_content_id("air")
272 local c_ignore = minetest.get_content_id("ignore")
273 local c_pine_tree = minetest.get_content_id("default:pine_tree")
274 local c_pine_needles = minetest.get_content_id("default:pine_needles")
275 local c_snow = minetest.get_content_id("default:snow")
277 local vm = minetest.get_voxel_manip()
278 local minp, maxp = vm:read_from_map(
279 {x = x - 3, y = y, z = z - 3},
280 {x = x + 3, y = maxy + 3, z = z + 3}
282 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
283 local data = vm:get_data()
285 -- Upper branches layer
287 for yy = maxy - 1, maxy + 1 do
288 for zz = z - dev, z + dev do
289 local vi = a:index(x - dev, yy, zz)
290 local via = a:index(x - dev, yy + 1, zz)
291 for xx = x - dev, x + dev do
292 if random() < 0.95 - dev * 0.05 then
293 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
296 add_snow(data, via, c_air, c_ignore, c_snow)
307 add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
309 add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
310 c_pine_needles) -- Paramat added a pointy top node
312 add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
315 -- Lower branches layer
317 for i = 1, 20 do -- Random 2x2 squares of needles
318 local xi = x + random(-3, 2)
319 local yy = maxy + random(-6, -5)
320 local zi = z + random(-3, 2)
325 local vi = a:index(xi, yy, zz)
326 local via = a:index(xi, yy + 1, zz)
327 for xx = xi, xi + 1 do
328 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
331 add_snow(data, via, c_air, c_ignore, c_snow)
340 for yy = my + 1, my + 2 do
341 for zz = z - dev, z + dev do
342 local vi = a:index(x - dev, yy, zz)
343 local via = a:index(x - dev, yy + 1, zz)
344 for xx = x - dev, x + dev do
345 if random() < 0.95 - dev * 0.05 then
346 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
349 add_snow(data, via, c_air, c_ignore, c_snow)
360 -- Force-place lowest trunk node to replace sapling
361 data[a:index(x, y, z)] = c_pine_tree
362 for yy = y + 1, maxy do
363 local vi = a:index(x, yy, z)
364 local node_id = data[vi]
365 if node_id == c_air or node_id == c_ignore or
366 node_id == c_pine_needles or node_id == c_snow then
367 data[vi] = c_pine_tree
379 function default.grow_new_apple_tree(pos)
380 local path = minetest.get_modpath("default") ..
381 "/schematics/apple_tree_from_sapling.mts"
382 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
383 path, "random", nil, false)
389 function default.grow_new_jungle_tree(pos)
390 local path = minetest.get_modpath("default") ..
391 "/schematics/jungle_tree_from_sapling.mts"
392 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
393 path, "random", nil, false)
399 function default.grow_new_pine_tree(pos)
400 local path = minetest.get_modpath("default") ..
401 "/schematics/pine_tree_from_sapling.mts"
402 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
403 path, "0", nil, false)
407 -- New snowy pine tree
409 function default.grow_new_snowy_pine_tree(pos)
410 local path = minetest.get_modpath("default") ..
411 "/schematics/snowy_pine_tree_from_sapling.mts"
412 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
413 path, "random", nil, false)
419 function default.grow_new_acacia_tree(pos)
420 local path = minetest.get_modpath("default") ..
421 "/schematics/acacia_tree_from_sapling.mts"
422 minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
423 path, "random", nil, false)
429 function default.grow_new_aspen_tree(pos)
430 local path = minetest.get_modpath("default") ..
431 "/schematics/aspen_tree_from_sapling.mts"
432 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
433 path, "0", nil, false)
437 -- Bushes do not need 'from sapling' schematic variants because
438 -- only the stem node is force-placed in the schematic.
442 function default.grow_bush(pos)
443 local path = minetest.get_modpath("default") ..
444 "/schematics/bush.mts"
445 minetest.place_schematic({x = pos.x - 1, y = pos.y - 1, z = pos.z - 1},
446 path, "0", nil, false)
452 function default.grow_acacia_bush(pos)
453 local path = minetest.get_modpath("default") ..
454 "/schematics/acacia_bush.mts"
455 minetest.place_schematic({x = pos.x - 1, y = pos.y - 1, z = pos.z - 1},
456 path, "0", nil, false)
461 -- Sapling 'on place' function to check protection of node and resulting tree volume
464 function default.sapling_on_place(itemstack, placer, pointed_thing,
465 sapling_name, minp_relative, maxp_relative, interval)
466 -- Position of sapling
467 local pos = pointed_thing.under
468 local node = minetest.get_node_or_nil(pos)
469 local pdef = node and minetest.registered_nodes[node.name]
471 if pdef and pdef.on_rightclick and
472 not (placer and placer:is_player() and
473 placer:get_player_control().sneak) then
474 return pdef.on_rightclick(pos, node, placer, itemstack, pointed_thing)
477 if not pdef or not pdef.buildable_to then
478 pos = pointed_thing.above
479 node = minetest.get_node_or_nil(pos)
480 pdef = node and minetest.registered_nodes[node.name]
481 if not pdef or not pdef.buildable_to then
486 local player_name = placer and placer:get_player_name() or ""
487 -- Check sapling position for protection
488 if minetest.is_protected(pos, player_name) then
489 minetest.record_protection_violation(pos, player_name)
492 -- Check tree volume for protection
493 if default.intersects_protection(
494 vector.add(pos, minp_relative),
495 vector.add(pos, maxp_relative),
498 minetest.record_protection_violation(pos, player_name)
499 -- Print extra information to explain
500 minetest.chat_send_player(player_name, "Tree will intersect protection")
504 minetest.log("action", player_name .. " places node "
505 .. sapling_name .. " at " .. minetest.pos_to_string(pos))
507 local take_item = not (creative and creative.is_enabled_for
508 and creative.is_enabled_for(player_name))
509 local newnode = {name = sapling_name}
510 local ndef = minetest.registered_nodes[sapling_name]
511 minetest.set_node(pos, newnode)
514 if ndef and ndef.after_place_node then
515 -- Deepcopy place_to and pointed_thing because callback can modify it
516 if ndef.after_place_node(table.copy(pos), placer,
517 itemstack, table.copy(pointed_thing)) then
523 for _, callback in ipairs(minetest.registered_on_placenodes) do
524 -- Deepcopy pos, node and pointed_thing because callback can modify them
525 if callback(table.copy(pos), table.copy(newnode),
526 placer, table.copy(node or {}),
527 itemstack, table.copy(pointed_thing)) then
533 itemstack:take_item()