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,
31 {"default:snow", "default:snowblock", "default:dirt_with_snow"})
37 function default.grow_sapling(pos)
38 if not default.can_grow(pos) then
39 -- try a bit later again
40 minetest.get_node_timer(pos):start(math.random(240, 600))
44 local mg_name = minetest.get_mapgen_setting("mg_name")
45 local node = minetest.get_node(pos)
46 if node.name == "default:sapling" then
47 minetest.log("action", "A sapling grows into a tree at "..
48 minetest.pos_to_string(pos))
49 if mg_name == "v6" then
50 default.grow_tree(pos, random(1, 4) == 1)
52 default.grow_new_apple_tree(pos)
54 elseif node.name == "default:junglesapling" then
55 minetest.log("action", "A jungle sapling grows into a tree at "..
56 minetest.pos_to_string(pos))
57 if mg_name == "v6" then
58 default.grow_jungle_tree(pos)
60 default.grow_new_jungle_tree(pos)
62 elseif node.name == "default:pine_sapling" then
63 minetest.log("action", "A pine sapling grows into a tree at "..
64 minetest.pos_to_string(pos))
65 local snow = is_snow_nearby(pos)
66 if mg_name == "v6" then
67 default.grow_pine_tree(pos, snow)
69 default.grow_new_snowy_pine_tree(pos)
71 default.grow_new_pine_tree(pos)
73 elseif node.name == "default:acacia_sapling" then
74 minetest.log("action", "An acacia sapling grows into a tree at "..
75 minetest.pos_to_string(pos))
76 default.grow_new_acacia_tree(pos)
77 elseif node.name == "default:aspen_sapling" then
78 minetest.log("action", "An aspen sapling grows into a tree at "..
79 minetest.pos_to_string(pos))
80 default.grow_new_aspen_tree(pos)
84 minetest.register_lbm({
85 name = "default:convert_saplings_to_node_timer",
86 nodenames = {"default:sapling", "default:junglesapling",
87 "default:pine_sapling", "default:acacia_sapling",
88 "default:aspen_sapling"},
89 action = function(pos)
90 minetest.get_node_timer(pos):start(math.random(1200, 2400))
98 -- Apple tree and jungle tree trunk and leaves function
100 local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
101 height, size, iters, is_apple_tree)
102 local x, y, z = pos.x, pos.y, pos.z
103 local c_air = minetest.get_content_id("air")
104 local c_ignore = minetest.get_content_id("ignore")
105 local c_apple = minetest.get_content_id("default:apple")
108 data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
109 for yy = y + 1, y + height - 1 do
110 local vi = a:index(x, yy, z)
111 local node_id = data[vi]
112 if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
117 -- Force leaves near the trunk
118 for z_dist = -1, 1 do
119 for y_dist = -size, 1 do
120 local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
121 for x_dist = -1, 1 do
122 if data[vi] == c_air or data[vi] == c_ignore then
123 if is_apple_tree and random(1, 8) == 1 then
126 data[vi] = leaves_cid
134 -- Randomly add leaves in 2x2x2 clusters.
136 local clust_x = x + random(-size, size - 1)
137 local clust_y = y + height + random(-size, 0)
138 local clust_z = z + random(-size, size - 1)
143 local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
144 if data[vi] == c_air or data[vi] == c_ignore then
145 if is_apple_tree and random(1, 8) == 1 then
148 data[vi] = leaves_cid
160 function default.grow_tree(pos, is_apple_tree, bad)
162 NOTE: Tree-placing code is currently duplicated in the engine
163 and in games that have saplings; both are deprecated but not
167 error("Deprecated use of default.grow_tree")
170 local x, y, z = pos.x, pos.y, pos.z
171 local height = random(4, 5)
172 local c_tree = minetest.get_content_id("default:tree")
173 local c_leaves = minetest.get_content_id("default:leaves")
175 local vm = minetest.get_voxel_manip()
176 local minp, maxp = vm:read_from_map(
177 {x = x - 2, y = y, z = z - 2},
178 {x = x + 2, y = y + height + 1, z = z + 2}
180 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
181 local data = vm:get_data()
183 add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
193 function default.grow_jungle_tree(pos, bad)
195 NOTE: Jungletree-placing code is currently duplicated in the engine
196 and in games that have saplings; both are deprecated but not
200 error("Deprecated use of default.grow_jungle_tree")
203 local x, y, z = pos.x, pos.y, pos.z
204 local height = random(8, 12)
205 local c_air = minetest.get_content_id("air")
206 local c_ignore = minetest.get_content_id("ignore")
207 local c_jungletree = minetest.get_content_id("default:jungletree")
208 local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
210 local vm = minetest.get_voxel_manip()
211 local minp, maxp = vm:read_from_map(
212 {x = x - 3, y = y - 1, z = z - 3},
213 {x = x + 3, y = y + height + 1, z = z + 3}
215 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
216 local data = vm:get_data()
218 add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves,
219 height, 3, 30, false)
222 for z_dist = -1, 1 do
223 local vi_1 = a:index(x - 1, y - 1, z + z_dist)
224 local vi_2 = a:index(x - 1, y, z + z_dist)
225 for x_dist = -1, 1 do
226 if random(1, 3) >= 2 then
227 if data[vi_1] == c_air or data[vi_1] == c_ignore then
228 data[vi_1] = c_jungletree
229 elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
230 data[vi_2] = c_jungletree
244 -- Pine tree from mg mapgen mod, design by sfan5, pointy top added by paramat
246 local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
247 local node_id = data[vi]
248 if node_id == c_air or node_id == c_ignore or node_id == c_snow then
249 data[vi] = c_pine_needles
253 local function add_snow(data, vi, c_air, c_ignore, c_snow)
254 local node_id = data[vi]
255 if node_id == c_air or node_id == c_ignore then
260 function default.grow_pine_tree(pos, snow)
261 local x, y, z = pos.x, pos.y, pos.z
262 local maxy = y + random(9, 13) -- Trunk top
264 local c_air = minetest.get_content_id("air")
265 local c_ignore = minetest.get_content_id("ignore")
266 local c_pine_tree = minetest.get_content_id("default:pine_tree")
267 local c_pine_needles = minetest.get_content_id("default:pine_needles")
268 local c_snow = minetest.get_content_id("default:snow")
270 local vm = minetest.get_voxel_manip()
271 local minp, maxp = vm:read_from_map(
272 {x = x - 3, y = y, z = z - 3},
273 {x = x + 3, y = maxy + 3, z = z + 3}
275 local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
276 local data = vm:get_data()
278 -- Upper branches layer
280 for yy = maxy - 1, maxy + 1 do
281 for zz = z - dev, z + dev do
282 local vi = a:index(x - dev, yy, zz)
283 local via = a:index(x - dev, yy + 1, zz)
284 for xx = x - dev, x + dev do
285 if random() < 0.95 - dev * 0.05 then
286 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
289 add_snow(data, via, c_air, c_ignore, c_snow)
300 add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
302 add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
303 c_pine_needles) -- Paramat added a pointy top node
305 add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
308 -- Lower branches layer
310 for i = 1, 20 do -- Random 2x2 squares of needles
311 local xi = x + random(-3, 2)
312 local yy = maxy + random(-6, -5)
313 local zi = z + random(-3, 2)
318 local vi = a:index(xi, yy, zz)
319 local via = a:index(xi, yy + 1, zz)
320 for xx = xi, xi + 1 do
321 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
324 add_snow(data, via, c_air, c_ignore, c_snow)
333 for yy = my + 1, my + 2 do
334 for zz = z - dev, z + dev do
335 local vi = a:index(x - dev, yy, zz)
336 local via = a:index(x - dev, yy + 1, zz)
337 for xx = x - dev, x + dev do
338 if random() < 0.95 - dev * 0.05 then
339 add_pine_needles(data, vi, c_air, c_ignore, c_snow,
342 add_snow(data, via, c_air, c_ignore, c_snow)
353 -- Force-place lowest trunk node to replace sapling
354 data[a:index(x, y, z)] = c_pine_tree
355 for yy = y + 1, maxy do
356 local vi = a:index(x, yy, z)
357 local node_id = data[vi]
358 if node_id == c_air or node_id == c_ignore or
359 node_id == c_pine_needles or node_id == c_snow then
360 data[vi] = c_pine_tree
372 function default.grow_new_apple_tree(pos)
373 local path = minetest.get_modpath("default") ..
374 "/schematics/apple_tree_from_sapling.mts"
375 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
376 path, "0", nil, false)
382 function default.grow_new_jungle_tree(pos)
383 local path = minetest.get_modpath("default") ..
384 "/schematics/jungle_tree_from_sapling.mts"
385 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
386 path, "random", nil, false)
392 function default.grow_new_pine_tree(pos)
393 local path = minetest.get_modpath("default") ..
394 "/schematics/pine_tree_from_sapling.mts"
395 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
396 path, "0", nil, false)
400 -- New snowy pine tree
402 function default.grow_new_snowy_pine_tree(pos)
403 local path = minetest.get_modpath("default") ..
404 "/schematics/snowy_pine_tree_from_sapling.mts"
405 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
406 path, "random", nil, false)
412 function default.grow_new_acacia_tree(pos)
413 local path = minetest.get_modpath("default") ..
414 "/schematics/acacia_tree_from_sapling.mts"
415 minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
416 path, "random", nil, false)
422 function default.grow_new_aspen_tree(pos)
423 local path = minetest.get_modpath("default") ..
424 "/schematics/aspen_tree_from_sapling.mts"
425 minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
426 path, "0", nil, false)
431 -- Sapling 'on place' function to check protection of node and resulting tree volume
434 function default.sapling_on_place(itemstack, placer, pointed_thing,
435 sapling_name, minp_relative, maxp_relative, interval)
436 -- Position of sapling
437 local pos = pointed_thing.under
438 local node = minetest.get_node_or_nil(pos)
439 local pdef = node and minetest.registered_nodes[node.name]
441 if pdef and pdef.on_rightclick and not placer:get_player_control().sneak then
442 return pdef.on_rightclick(pos, node, placer, itemstack, pointed_thing)
445 if not pdef or not pdef.buildable_to then
446 pos = pointed_thing.above
447 node = minetest.get_node_or_nil(pos)
448 pdef = node and minetest.registered_nodes[node.name]
449 if not pdef or not pdef.buildable_to then
454 local player_name = placer:get_player_name()
455 -- Check sapling position for protection
456 if minetest.is_protected(pos, player_name) then
457 minetest.record_protection_violation(pos, player_name)
460 -- Check tree volume for protection
461 if not default.intersects_protection(
462 vector.add(pos, minp_relative),
463 vector.add(pos, maxp_relative),
466 minetest.set_node(pos, {name = sapling_name})
467 if not minetest.setting_getbool("creative_mode") then
468 itemstack:take_item()
471 minetest.record_protection_violation(pos, player_name)
472 -- Print extra information to explain
473 minetest.chat_send_player(player_name, "Tree will intersect protection")