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 a bit later again
39 minetest.get_node_timer(pos):start(math.random(240, 600))
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)
83 minetest.register_lbm({
84 name = "default:convert_saplings_to_node_timer",
85 nodenames = {"default:sapling", "default:junglesapling",
86 "default:pine_sapling", "default:acacia_sapling",
87 "default:aspen_sapling"},
88 action = function(pos)
89 minetest.get_node_timer(pos):start(math.random(1200, 2400))
97 -- Apple tree and jungle tree trunk and leaves function
99 local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
100 height, size, iters, is_apple_tree)
101 local x, y, z = pos.x, pos.y, pos.z
102 local c_air = minetest.get_content_id("air")
103 local c_ignore = minetest.get_content_id("ignore")
104 local c_apple = minetest.get_content_id("default:apple")
107 data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
108 for yy = y + 1, y + height - 1 do
109 local vi = a:index(x, yy, z)
110 local node_id = data[vi]
111 if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
116 -- Force leaves near the trunk
117 for z_dist = -1, 1 do
118 for y_dist = -size, 1 do
119 local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
120 for x_dist = -1, 1 do
121 if data[vi] == c_air or data[vi] == c_ignore then
122 if is_apple_tree and random(1, 8) == 1 then
125 data[vi] = leaves_cid
133 -- Randomly add leaves in 2x2x2 clusters.
135 local clust_x = x + random(-size, size - 1)
136 local clust_y = y + height + random(-size, 0)
137 local clust_z = z + random(-size, size - 1)
142 local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
143 if data[vi] == c_air or data[vi] == c_ignore then
144 if is_apple_tree and random(1, 8) == 1 then
147 data[vi] = leaves_cid
159 function default.grow_tree(pos, is_apple_tree, bad)
161 NOTE: Tree-placing code is currently duplicated in the engine
162 and in games that have saplings; both are deprecated but not
166 error("Deprecated use of default.grow_tree")
169 local x, y, z = pos.x, pos.y, pos.z
170 local height = random(4, 5)
171 local c_tree = minetest.get_content_id("default:tree")
172 local c_leaves = minetest.get_content_id("default:leaves")
174 local vm = minetest.get_voxel_manip()
175 local minp, maxp = vm:read_from_map(
176 {x = x - 2, y = y, z = z - 2},
177 {x = x + 2, y = y + height + 1, z = z + 2}
179 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
180 local data = vm:get_data()
182 add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
192 function default.grow_jungle_tree(pos, bad)
194 NOTE: Jungletree-placing code is currently duplicated in the engine
195 and in games that have saplings; both are deprecated but not
199 error("Deprecated use of default.grow_jungle_tree")
202 local x, y, z = pos.x, pos.y, pos.z
203 local height = random(8, 12)
204 local c_air = minetest.get_content_id("air")
205 local c_ignore = minetest.get_content_id("ignore")
206 local c_jungletree = minetest.get_content_id("default:jungletree")
207 local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
209 local vm = minetest.get_voxel_manip()
210 local minp, maxp = vm:read_from_map(
211 {x = x - 3, y = y - 1, z = z - 3},
212 {x = x + 3, y = y + height + 1, z = z + 3}
214 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
215 local data = vm:get_data()
217 add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves,
218 height, 3, 30, false)
221 for z_dist = -1, 1 do
222 local vi_1 = a:index(x - 1, y - 1, z + z_dist)
223 local vi_2 = a:index(x - 1, y, z + z_dist)
224 for x_dist = -1, 1 do
225 if random(1, 3) >= 2 then
226 if data[vi_1] == c_air or data[vi_1] == c_ignore then
227 data[vi_1] = c_jungletree
228 elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
229 data[vi_2] = c_jungletree
243 -- Pine tree from mg mapgen mod, design by sfan5, pointy top added by paramat
245 local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
246 local node_id = data[vi]
247 if node_id == c_air or node_id == c_ignore or node_id == c_snow then
248 data[vi] = c_pine_needles
252 local function add_snow(data, vi, c_air, c_ignore, c_snow)
253 local node_id = data[vi]
254 if node_id == c_air or node_id == c_ignore then
259 function default.grow_pine_tree(pos, snow)
260 local x, y, z = pos.x, pos.y, pos.z
261 local maxy = y + random(9, 13) -- Trunk top
263 local c_air = minetest.get_content_id("air")
264 local c_ignore = minetest.get_content_id("ignore")
265 local c_pine_tree = minetest.get_content_id("default:pine_tree")
266 local c_pine_needles = minetest.get_content_id("default:pine_needles")
267 local c_snow = minetest.get_content_id("default:snow")
269 local vm = minetest.get_voxel_manip()
270 local minp, maxp = vm:read_from_map(
271 {x = x - 3, y = y, z = z - 3},
272 {x = x + 3, y = maxy + 3, z = z + 3}
274 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
275 local data = vm:get_data()
277 -- Upper branches layer
279 for yy = maxy - 1, maxy + 1 do
280 for zz = z - dev, z + dev do
281 local vi = a:index(x - dev, yy, zz)
282 local via = a:index(x - dev, yy + 1, zz)
283 for xx = x - dev, x + dev do
284 if random() < 0.95 - dev * 0.05 then
285 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
288 add_snow(data, via, c_air, c_ignore, c_snow)
299 add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
301 add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
302 c_pine_needles) -- Paramat added a pointy top node
304 add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
307 -- Lower branches layer
309 for i = 1, 20 do -- Random 2x2 squares of needles
310 local xi = x + random(-3, 2)
311 local yy = maxy + random(-6, -5)
312 local zi = z + random(-3, 2)
317 local vi = a:index(xi, yy, zz)
318 local via = a:index(xi, yy + 1, zz)
319 for xx = xi, xi + 1 do
320 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
323 add_snow(data, via, c_air, c_ignore, c_snow)
332 for yy = my + 1, my + 2 do
333 for zz = z - dev, z + dev do
334 local vi = a:index(x - dev, yy, zz)
335 local via = a:index(x - dev, yy + 1, zz)
336 for xx = x - dev, x + dev do
337 if random() < 0.95 - dev * 0.05 then
338 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
341 add_snow(data, via, c_air, c_ignore, c_snow)
352 -- Force-place lowest trunk node to replace sapling
353 data[a:index(x, y, z)] = c_pine_tree
354 for yy = y + 1, maxy do
355 local vi = a:index(x, yy, z)
356 local node_id = data[vi]
357 if node_id == c_air or node_id == c_ignore or
358 node_id == c_pine_needles or node_id == c_snow then
359 data[vi] = c_pine_tree
371 function default.grow_new_apple_tree(pos)
372 local path = minetest.get_modpath("default") ..
373 "/schematics/apple_tree_from_sapling.mts"
374 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
375 path, "random", nil, false)
381 function default.grow_new_jungle_tree(pos)
382 local path = minetest.get_modpath("default") ..
383 "/schematics/jungle_tree_from_sapling.mts"
384 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
385 path, "random", nil, false)
391 function default.grow_new_pine_tree(pos)
392 local path = minetest.get_modpath("default") ..
393 "/schematics/pine_tree_from_sapling.mts"
394 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
395 path, "0", nil, false)
399 -- New snowy pine tree
401 function default.grow_new_snowy_pine_tree(pos)
402 local path = minetest.get_modpath("default") ..
403 "/schematics/snowy_pine_tree_from_sapling.mts"
404 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
405 path, "random", nil, false)
411 function default.grow_new_acacia_tree(pos)
412 local path = minetest.get_modpath("default") ..
413 "/schematics/acacia_tree_from_sapling.mts"
414 minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
415 path, "random", nil, false)
421 function default.grow_new_aspen_tree(pos)
422 local path = minetest.get_modpath("default") ..
423 "/schematics/aspen_tree_from_sapling.mts"
424 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
425 path, "0", nil, false)
430 -- Sapling 'on place' function to check protection of node and resulting tree volume
433 function default.sapling_on_place(itemstack, placer, pointed_thing,
434 sapling_name, minp_relative, maxp_relative, interval)
435 -- Position of sapling
436 local pos = pointed_thing.under
437 local node = minetest.get_node_or_nil(pos)
438 local pdef = node and minetest.registered_nodes[node.name]
440 if pdef and pdef.on_rightclick and not placer:get_player_control().sneak then
441 return pdef.on_rightclick(pos, node, placer, itemstack, pointed_thing)
444 if not pdef or not pdef.buildable_to then
445 pos = pointed_thing.above
446 node = minetest.get_node_or_nil(pos)
447 pdef = node and minetest.registered_nodes[node.name]
448 if not pdef or not pdef.buildable_to then
453 local player_name = placer:get_player_name()
454 -- Check sapling position for protection
455 if minetest.is_protected(pos, player_name) then
456 minetest.record_protection_violation(pos, player_name)
459 -- Check tree volume for protection
460 if default.intersects_protection(
461 vector.add(pos, minp_relative),
462 vector.add(pos, maxp_relative),
465 minetest.record_protection_violation(pos, player_name)
466 -- Print extra information to explain
467 minetest.chat_send_player(player_name, "Tree will intersect protection")
471 minetest.log("action", player_name .. " places node "
472 .. sapling_name .. " at " .. minetest.pos_to_string(pos))
474 local take_item = not (creative and creative.is_enabled_for
475 and creative.is_enabled_for(player_name))
476 local newnode = {name = sapling_name}
477 local ndef = minetest.registered_nodes[sapling_name]
478 minetest.set_node(pos, newnode)
481 if ndef and ndef.after_place_node then
482 -- Deepcopy place_to and pointed_thing because callback can modify it
483 if ndef.after_place_node(table.copy(pos), placer,
484 itemstack, table.copy(pointed_thing)) then
490 for _, callback in ipairs(minetest.registered_on_placenodes) do
491 -- Deepcopy pos, node and pointed_thing because callback can modify them
492 if callback(table.copy(pos), table.copy(newnode),
493 placer, table.copy(node or {}),
494 itemstack, table.copy(pointed_thing)) then
500 itemstack:take_item()