Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- local random = math.random
- --
- -- Grow trees from saplings
- --
- -- 'can grow' function
- function default.can_grow(pos)
- local node_under = minetest.get_node_or_nil({x = pos.x, y = pos.y - 1, z = pos.z})
- if not node_under then
- return false
- end
- local name_under = node_under.name
- local is_soil = minetest.get_item_group(name_under, "soil")
- if is_soil == 0 then
- return false
- end
- local light_level = minetest.get_node_light(pos)
- if not light_level or light_level < 13 then
- return false
- end
- return true
- end
- -- 'is snow nearby' function
- local function is_snow_nearby(pos)
- return minetest.find_node_near(pos, 1,
- {"default:snow", "default:snowblock", "default:dirt_with_snow"})
- end
- -- Sapling ABM
- function default.grow_sapling(pos)
- if not default.can_grow(pos) then
- -- try a bit later again
- minetest.get_node_timer(pos):start(math.random(240, 600))
- return
- end
- local mg_name = minetest.get_mapgen_setting("mg_name")
- local node = minetest.get_node(pos)
- if node.name == "default:sapling" then
- minetest.log("action", "A sapling grows into a tree at "..
- minetest.pos_to_string(pos))
- if mg_name == "v6" then
- default.grow_tree(pos, random(1, 4) == 1)
- else
- default.grow_new_apple_tree(pos)
- end
- elseif node.name == "default:junglesapling" then
- minetest.log("action", "A jungle sapling grows into a tree at "..
- minetest.pos_to_string(pos))
- if mg_name == "v6" then
- default.grow_jungle_tree(pos)
- else
- default.grow_new_jungle_tree(pos)
- end
- elseif node.name == "default:pine_sapling" then
- minetest.log("action", "A pine sapling grows into a tree at "..
- minetest.pos_to_string(pos))
- local snow = is_snow_nearby(pos)
- if mg_name == "v6" then
- default.grow_pine_tree(pos, snow)
- elseif snow then
- default.grow_new_snowy_pine_tree(pos)
- else
- default.grow_new_pine_tree(pos)
- end
- elseif node.name == "default:acacia_sapling" then
- minetest.log("action", "An acacia sapling grows into a tree at "..
- minetest.pos_to_string(pos))
- default.grow_new_acacia_tree(pos)
- elseif node.name == "default:aspen_sapling" then
- minetest.log("action", "An aspen sapling grows into a tree at "..
- minetest.pos_to_string(pos))
- default.grow_new_aspen_tree(pos)
- end
- end
- minetest.register_lbm({
- name = "default:convert_saplings_to_node_timer",
- nodenames = {"default:sapling", "default:junglesapling",
- "default:pine_sapling", "default:acacia_sapling",
- "default:aspen_sapling"},
- action = function(pos)
- minetest.get_node_timer(pos):start(math.random(1200, 2400))
- end
- })
- --
- -- Tree generation
- --
- -- Apple tree and jungle tree trunk and leaves function
- local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
- height, size, iters, is_apple_tree)
- local x, y, z = pos.x, pos.y, pos.z
- local c_air = minetest.get_content_id("air")
- local c_ignore = minetest.get_content_id("ignore")
- local c_apple = minetest.get_content_id("default:apple")
- -- Trunk
- data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
- for yy = y + 1, y + height - 1 do
- local vi = a:index(x, yy, z)
- local node_id = data[vi]
- if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
- data[vi] = tree_cid
- end
- end
- -- Force leaves near the trunk
- for z_dist = -1, 1 do
- for y_dist = -size, 1 do
- local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
- for x_dist = -1, 1 do
- if data[vi] == c_air or data[vi] == c_ignore then
- if is_apple_tree and random(1, 8) == 1 then
- data[vi] = c_apple
- else
- data[vi] = leaves_cid
- end
- end
- vi = vi + 1
- end
- end
- end
- -- Randomly add leaves in 2x2x2 clusters.
- for i = 1, iters do
- local clust_x = x + random(-size, size - 1)
- local clust_y = y + height + random(-size, 0)
- local clust_z = z + random(-size, size - 1)
- for xi = 0, 1 do
- for yi = 0, 1 do
- for zi = 0, 1 do
- local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
- if data[vi] == c_air or data[vi] == c_ignore then
- if is_apple_tree and random(1, 8) == 1 then
- data[vi] = c_apple
- else
- data[vi] = leaves_cid
- end
- end
- end
- end
- end
- end
- end
- -- Apple tree
- function default.grow_tree(pos, is_apple_tree, bad)
- --[[
- NOTE: Tree-placing code is currently duplicated in the engine
- and in games that have saplings; both are deprecated but not
- replaced yet
- --]]
- if bad then
- error("Deprecated use of default.grow_tree")
- end
- local x, y, z = pos.x, pos.y, pos.z
- local height = random(4, 5)
- local c_tree = minetest.get_content_id("default:tree")
- local c_leaves = minetest.get_content_id("default:leaves")
- local vm = minetest.get_voxel_manip()
- local minp, maxp = vm:read_from_map(
- {x = x - 2, y = y, z = z - 2},
- {x = x + 2, y = y + height + 1, z = z + 2}
- )
- local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
- local data = vm:get_data()
- add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
- vm:set_data(data)
- vm:write_to_map()
- vm:update_map()
- end
- -- Jungle tree
- function default.grow_jungle_tree(pos, bad)
- --[[
- NOTE: Jungletree-placing code is currently duplicated in the engine
- and in games that have saplings; both are deprecated but not
- replaced yet
- --]]
- if bad then
- error("Deprecated use of default.grow_jungle_tree")
- end
- local x, y, z = pos.x, pos.y, pos.z
- local height = random(8, 12)
- local c_air = minetest.get_content_id("air")
- local c_ignore = minetest.get_content_id("ignore")
- local c_jungletree = minetest.get_content_id("default:jungletree")
- local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
- local vm = minetest.get_voxel_manip()
- local minp, maxp = vm:read_from_map(
- {x = x - 3, y = y - 1, z = z - 3},
- {x = x + 3, y = y + height + 1, z = z + 3}
- )
- local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
- local data = vm:get_data()
- add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves,
- height, 3, 30, false)
- -- Roots
- for z_dist = -1, 1 do
- local vi_1 = a:index(x - 1, y - 1, z + z_dist)
- local vi_2 = a:index(x - 1, y, z + z_dist)
- for x_dist = -1, 1 do
- if random(1, 3) >= 2 then
- if data[vi_1] == c_air or data[vi_1] == c_ignore then
- data[vi_1] = c_jungletree
- elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
- data[vi_2] = c_jungletree
- end
- end
- vi_1 = vi_1 + 1
- vi_2 = vi_2 + 1
- end
- end
- vm:set_data(data)
- vm:write_to_map()
- vm:update_map()
- end
- -- Pine tree from mg mapgen mod, design by sfan5, pointy top added by paramat
- local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
- local node_id = data[vi]
- if node_id == c_air or node_id == c_ignore or node_id == c_snow then
- data[vi] = c_pine_needles
- end
- end
- local function add_snow(data, vi, c_air, c_ignore, c_snow)
- local node_id = data[vi]
- if node_id == c_air or node_id == c_ignore then
- data[vi] = c_snow
- end
- end
- function default.grow_pine_tree(pos, snow)
- local x, y, z = pos.x, pos.y, pos.z
- local maxy = y + random(9, 13) -- Trunk top
- local c_air = minetest.get_content_id("air")
- local c_ignore = minetest.get_content_id("ignore")
- local c_pine_tree = minetest.get_content_id("default:pine_tree")
- local c_pine_needles = minetest.get_content_id("default:pine_needles")
- local c_snow = minetest.get_content_id("default:snow")
- local vm = minetest.get_voxel_manip()
- local minp, maxp = vm:read_from_map(
- {x = x - 3, y = y, z = z - 3},
- {x = x + 3, y = maxy + 3, z = z + 3}
- )
- local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
- local data = vm:get_data()
- -- Upper branches layer
- local dev = 3
- for yy = maxy - 1, maxy + 1 do
- for zz = z - dev, z + dev do
- local vi = a:index(x - dev, yy, zz)
- local via = a:index(x - dev, yy + 1, zz)
- for xx = x - dev, x + dev do
- if random() < 0.95 - dev * 0.05 then
- add_pine_needles(data, vi, c_air, c_ignore, c_snow,
- c_pine_needles)
- if snow then
- add_snow(data, via, c_air, c_ignore, c_snow)
- end
- end
- vi = vi + 1
- via = via + 1
- end
- end
- dev = dev - 1
- end
- -- Centre top nodes
- add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
- c_pine_needles)
- add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
- c_pine_needles) -- Paramat added a pointy top node
- if snow then
- add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
- end
- -- Lower branches layer
- local my = 0
- for i = 1, 20 do -- Random 2x2 squares of needles
- local xi = x + random(-3, 2)
- local yy = maxy + random(-6, -5)
- local zi = z + random(-3, 2)
- if yy > my then
- my = yy
- end
- for zz = zi, zi+1 do
- local vi = a:index(xi, yy, zz)
- local via = a:index(xi, yy + 1, zz)
- for xx = xi, xi + 1 do
- add_pine_needles(data, vi, c_air, c_ignore, c_snow,
- c_pine_needles)
- if snow then
- add_snow(data, via, c_air, c_ignore, c_snow)
- end
- vi = vi + 1
- via = via + 1
- end
- end
- end
- dev = 2
- for yy = my + 1, my + 2 do
- for zz = z - dev, z + dev do
- local vi = a:index(x - dev, yy, zz)
- local via = a:index(x - dev, yy + 1, zz)
- for xx = x - dev, x + dev do
- if random() < 0.95 - dev * 0.05 then
- add_pine_needles(data, vi, c_air, c_ignore, c_snow,
- c_pine_needles)
- if snow then
- add_snow(data, via, c_air, c_ignore, c_snow)
- end
- end
- vi = vi + 1
- via = via + 1
- end
- end
- dev = dev - 1
- end
- -- Trunk
- -- Force-place lowest trunk node to replace sapling
- data[a:index(x, y, z)] = c_pine_tree
- for yy = y + 1, maxy do
- local vi = a:index(x, yy, z)
- local node_id = data[vi]
- if node_id == c_air or node_id == c_ignore or
- node_id == c_pine_needles or node_id == c_snow then
- data[vi] = c_pine_tree
- end
- end
- vm:set_data(data)
- vm:write_to_map()
- vm:update_map()
- end
- -- New apple tree
- function default.grow_new_apple_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/apple_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
- path, "0", nil, false)
- end
- -- New jungle tree
- function default.grow_new_jungle_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/jungle_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
- path, "random", nil, false)
- end
- -- New pine tree
- function default.grow_new_pine_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/pine_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
- path, "0", nil, false)
- end
- -- New snowy pine tree
- function default.grow_new_snowy_pine_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/snowy_pine_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
- path, "random", nil, false)
- end
- -- New acacia tree
- function default.grow_new_acacia_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/acacia_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
- path, "random", nil, false)
- end
- -- New aspen tree
- function default.grow_new_aspen_tree(pos)
- local path = minetest.get_modpath("default") ..
- "/schematics/aspen_tree_from_sapling.mts"
- minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
- path, "0", nil, false)
- end
- --
- -- Sapling 'on place' function to check protection of node and resulting tree volume
- --
- function default.sapling_on_place(itemstack, placer, pointed_thing,
- sapling_name, minp_relative, maxp_relative, interval)
- -- Position of sapling
- local pos = pointed_thing.under
- local node = minetest.get_node_or_nil(pos)
- local pdef = node and minetest.registered_nodes[node.name]
- if pdef and pdef.on_rightclick and not placer:get_player_control().sneak then
- return pdef.on_rightclick(pos, node, placer, itemstack, pointed_thing)
- end
- if not pdef or not pdef.buildable_to then
- pos = pointed_thing.above
- node = minetest.get_node_or_nil(pos)
- pdef = node and minetest.registered_nodes[node.name]
- if not pdef or not pdef.buildable_to then
- return itemstack
- end
- end
- local player_name = placer:get_player_name()
- -- Check sapling position for protection
- if minetest.is_protected(pos, player_name) then
- minetest.record_protection_violation(pos, player_name)
- return itemstack
- end
- -- Check tree volume for protection
- if not default.intersects_protection(
- vector.add(pos, minp_relative),
- vector.add(pos, maxp_relative),
- player_name,
- interval) then
- minetest.set_node(pos, {name = sapling_name})
- if not minetest.setting_getbool("creative_mode") then
- itemstack:take_item()
- end
- else
- minetest.record_protection_violation(pos, player_name)
- -- Print extra information to explain
- minetest.chat_send_player(player_name, "Tree will intersect protection")
- end
- return itemstack
- end
- --[[
- =================================================================================
- /home/nathan/.minetest/games/Block_Islands/mods/default/trees.lua
- The .minetest/games/Block_Islands/mods/default/trees.lua:84 simply is
- dofile(default_path.."/trees.lua")
- =================================================================================
- --]]
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement