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_nodes_in_area(
31 {x = pos.x - 1, y = pos.y - 1, z = pos.z - 1},
32 {x = pos.x + 1, y = pos.y + 1, z = pos.z + 1},
33 {"default:snow", "default:snowblock", "default:dirt_with_snow"}) > 0
39 function default.grow_sapling(pos)
40 if not default.can_grow(pos) then
41 -- try a bit later again
42 minetest.get_node_timer(pos):start(math.random(240, 600))
46 local mapgen = minetest.get_mapgen_params().mgname
47 local node = minetest.get_node(pos)
48 if node.name == "default:sapling" then
49 minetest.log("action", "A sapling grows into a tree at "..
50 minetest.pos_to_string(pos))
51 if mapgen == "v6" then
52 default.grow_tree(pos, random(1, 4) == 1)
54 default.grow_new_apple_tree(pos)
56 elseif node.name == "default:junglesapling" then
57 minetest.log("action", "A jungle sapling grows into a tree at "..
58 minetest.pos_to_string(pos))
59 if mapgen == "v6" then
60 default.grow_jungle_tree(pos)
62 default.grow_new_jungle_tree(pos)
64 elseif node.name == "default:pine_sapling" then
65 minetest.log("action", "A pine sapling grows into a tree at "..
66 minetest.pos_to_string(pos))
67 local snow = is_snow_nearby(pos)
68 if mapgen == "v6" then
69 default.grow_pine_tree(pos, snow)
71 default.grow_new_snowy_pine_tree(pos)
73 default.grow_new_pine_tree(pos)
75 elseif node.name == "default:acacia_sapling" then
76 minetest.log("action", "An acacia sapling grows into a tree at "..
77 minetest.pos_to_string(pos))
78 default.grow_new_acacia_tree(pos)
79 elseif node.name == "default:aspen_sapling" then
80 minetest.log("action", "An aspen sapling grows into a tree at "..
81 minetest.pos_to_string(pos))
82 default.grow_new_aspen_tree(pos)
86 minetest.register_lbm({
87 name = "default:convert_saplings_to_node_timer",
88 nodenames = {"default:sapling", "default:junglesapling",
89 "default:pine_sapling", "default:acacia_sapling",
90 "default:aspen_sapling"},
91 action = function(pos)
92 minetest.get_node_timer(pos):start(math.random(1200, 2400))
100 -- Apple tree and jungle tree trunk and leaves function
102 local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
103 height, size, iters, is_apple_tree)
104 local x, y, z = pos.x, pos.y, pos.z
105 local c_air = minetest.get_content_id("air")
106 local c_ignore = minetest.get_content_id("ignore")
107 local c_apple = minetest.get_content_id("default:apple")
110 data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
111 for yy = y + 1, y + height - 1 do
112 local vi = a:index(x, yy, z)
113 local node_id = data[vi]
114 if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
119 -- Force leaves near the trunk
120 for z_dist = -1, 1 do
121 for y_dist = -size, 1 do
122 local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
123 for x_dist = -1, 1 do
124 if data[vi] == c_air or data[vi] == c_ignore then
125 if is_apple_tree and random(1, 8) == 1 then
128 data[vi] = leaves_cid
136 -- Randomly add leaves in 2x2x2 clusters.
138 local clust_x = x + random(-size, size - 1)
139 local clust_y = y + height + random(-size, 0)
140 local clust_z = z + random(-size, size - 1)
145 local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
146 if data[vi] == c_air or data[vi] == c_ignore then
147 if is_apple_tree and random(1, 8) == 1 then
150 data[vi] = leaves_cid
162 function default.grow_tree(pos, is_apple_tree, bad)
164 NOTE: Tree-placing code is currently duplicated in the engine
165 and in games that have saplings; both are deprecated but not
169 error("Deprecated use of default.grow_tree")
172 local x, y, z = pos.x, pos.y, pos.z
173 local height = random(4, 5)
174 local c_tree = minetest.get_content_id("default:tree")
175 local c_leaves = minetest.get_content_id("default:leaves")
177 local vm = minetest.get_voxel_manip()
178 local minp, maxp = vm:read_from_map(
179 {x = x - 2, y = y, z = z - 2},
180 {x = x + 2, y = y + height + 1, z = z + 2}
182 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
183 local data = vm:get_data()
185 add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
195 function default.grow_jungle_tree(pos, bad)
197 NOTE: Jungletree-placing code is currently duplicated in the engine
198 and in games that have saplings; both are deprecated but not
202 error("Deprecated use of default.grow_jungle_tree")
205 local x, y, z = pos.x, pos.y, pos.z
206 local height = random(8, 12)
207 local c_air = minetest.get_content_id("air")
208 local c_ignore = minetest.get_content_id("ignore")
209 local c_jungletree = minetest.get_content_id("default:jungletree")
210 local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
212 local vm = minetest.get_voxel_manip()
213 local minp, maxp = vm:read_from_map(
214 {x = x - 3, y = y - 1, z = z - 3},
215 {x = x + 3, y = y + height + 1, z = z + 3}
217 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
218 local data = vm:get_data()
220 add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves,
221 height, 3, 30, false)
224 for z_dist = -1, 1 do
225 local vi_1 = a:index(x - 1, y - 1, z + z_dist)
226 local vi_2 = a:index(x - 1, y, z + z_dist)
227 for x_dist = -1, 1 do
228 if random(1, 3) >= 2 then
229 if data[vi_1] == c_air or data[vi_1] == c_ignore then
230 data[vi_1] = c_jungletree
231 elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
232 data[vi_2] = c_jungletree
246 -- Pine tree from mg mapgen mod, design by sfan5, pointy top added by paramat
248 local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
249 local node_id = data[vi]
250 if node_id == c_air or node_id == c_ignore or node_id == c_snow then
251 data[vi] = c_pine_needles
255 local function add_snow(data, vi, c_air, c_ignore, c_snow)
256 local node_id = data[vi]
257 if node_id == c_air or node_id == c_ignore then
262 function default.grow_pine_tree(pos, snow)
263 local x, y, z = pos.x, pos.y, pos.z
264 local maxy = y + random(9, 13) -- Trunk top
266 local c_air = minetest.get_content_id("air")
267 local c_ignore = minetest.get_content_id("ignore")
268 local c_pine_tree = minetest.get_content_id("default:pine_tree")
269 local c_pine_needles = minetest.get_content_id("default:pine_needles")
270 local c_snow = minetest.get_content_id("default:snow")
272 local vm = minetest.get_voxel_manip()
273 local minp, maxp = vm:read_from_map(
274 {x = x - 3, y = y, z = z - 3},
275 {x = x + 3, y = maxy + 3, z = z + 3}
277 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
278 local data = vm:get_data()
280 -- Upper branches layer
282 for yy = maxy - 1, maxy + 1 do
283 for zz = z - dev, z + dev do
284 local vi = a:index(x - dev, yy, zz)
285 local via = a:index(x - dev, yy + 1, zz)
286 for xx = x - dev, x + dev do
287 if random() < 0.95 - dev * 0.05 then
288 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
291 add_snow(data, via, c_air, c_ignore, c_snow)
302 add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
304 add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
305 c_pine_needles) -- Paramat added a pointy top node
307 add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
310 -- Lower branches layer
312 for i = 1, 20 do -- Random 2x2 squares of needles
313 local xi = x + random(-3, 2)
314 local yy = maxy + random(-6, -5)
315 local zi = z + random(-3, 2)
320 local vi = a:index(xi, yy, zz)
321 local via = a:index(xi, yy + 1, zz)
322 for xx = xi, xi + 1 do
323 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
326 add_snow(data, via, c_air, c_ignore, c_snow)
335 for yy = my + 1, my + 2 do
336 for zz = z - dev, z + dev do
337 local vi = a:index(x - dev, yy, zz)
338 local via = a:index(x - dev, yy + 1, zz)
339 for xx = x - dev, x + dev do
340 if random() < 0.95 - dev * 0.05 then
341 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
344 add_snow(data, via, c_air, c_ignore, c_snow)
355 -- Force-place lowest trunk node to replace sapling
356 data[a:index(x, y, z)] = c_pine_tree
357 for yy = y + 1, maxy do
358 local vi = a:index(x, yy, z)
359 local node_id = data[vi]
360 if node_id == c_air or node_id == c_ignore or
361 node_id == c_pine_needles or node_id == c_snow then
362 data[vi] = c_pine_tree
374 function default.grow_new_apple_tree(pos)
375 local path = minetest.get_modpath("default") ..
376 "/schematics/apple_tree_from_sapling.mts"
377 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
378 path, "0", nil, false)
384 function default.grow_new_jungle_tree(pos)
385 local path = minetest.get_modpath("default") ..
386 "/schematics/jungle_tree_from_sapling.mts"
387 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
388 path, "random", nil, false)
394 function default.grow_new_pine_tree(pos)
395 local path = minetest.get_modpath("default") ..
396 "/schematics/pine_tree_from_sapling.mts"
397 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
398 path, "0", nil, false)
402 -- New snowy pine tree
404 function default.grow_new_snowy_pine_tree(pos)
405 local path = minetest.get_modpath("default") ..
406 "/schematics/snowy_pine_tree_from_sapling.mts"
407 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
408 path, "random", nil, false)
414 function default.grow_new_acacia_tree(pos)
415 local path = minetest.get_modpath("default") ..
416 "/schematics/acacia_tree_from_sapling.mts"
417 minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
418 path, "random", nil, false)
423 function default.grow_new_aspen_tree(pos)
424 local path = minetest.get_modpath("default") ..
425 "/schematics/aspen_tree_from_sapling.mts"
426 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
427 path, "0", nil, false)