bonemeal/init.lua

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bonemeal = {}
-- default crops
local crops = {
{"farming:cotton_", 8, "farming:seed_cotton"},
{"farming:wheat_", 8, "farming:seed_wheat"},
}
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-- special pine check for nearby snow
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local function pine_grow(pos)
if minetest.find_node_near(pos, 1,
{"default:snow", "default:snowblock", "default:dirt_with_snow"}) then
default.grow_new_snowy_pine_tree(pos)
else
default.grow_new_pine_tree(pos)
end
end
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-- default saplings
local saplings = {
{"default:sapling", default.grow_new_apple_tree, "soil"},
{"default:junglesapling", default.grow_new_jungle_tree, "soil"},
{"default:acacia_sapling", default.grow_new_acacia_tree, "soil"},
{"default:aspen_sapling", default.grow_new_aspen_tree, "soil"},
{"default:pine_sapling", pine_grow, "soil"},
}
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-- helper tables ( "" denotes a blank item )
local green_grass = {
"default:grass_2", "default:grass_3", "default:grass_4",
"default:grass_5", "", ""
}
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local dry_grass = {
"default:dry_grass_2", "default:dry_grass_3", "default:dry_grass_4",
"default:dry_grass_5", "", ""
}
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local flowers = {
"flowers:dandelion_white", "flowers:dandelion_yellow", "flowers:geranium",
"flowers:rose", "flowers:tulip", "flowers:viola", ""
}
-- add additional bakedclay flowers if enabled
if minetest.get_modpath("bakedclay") then
flowers[7] = "bakedclay:delphinium"
flowers[8] = "bakedclay:thistle"
flowers[9] = "bakedclay:lazarus"
flowers[10] = "bakedclay:mannagrass"
flowers[11] = ""
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end
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-- default biomes deco
local deco = {
{"default:dirt_with_dry_grass", dry_grass, flowers},
{"default:sand", {}, {"default:dry_shrub", "", "", ""} },
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{"default:desert_sand", {}, {"default:dry_shrub", "", "", ""} },
{"default:silver_sand", {}, {"default:dry_shrub", "", "", ""} },
}
----- local functions
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-- particles
local function particle_effect(pos)
minetest.add_particlespawner({
amount = 4,
time = 0.15,
minpos = pos,
maxpos = pos,
minvel = {x = -1, y = 2, z = -1},
maxvel = {x = 1, y = 4, z = 1},
minacc = {x = -1, y = -1, z = -1},
maxacc = {x = 1, y = 1, z = 1},
minexptime = 1,
maxexptime = 1,
minsize = 1,
maxsize = 3,
texture = "bonemeal_particle.png",
})
end
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-- tree type check
local function grow_tree(pos, object)
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if type(object) == "table" and object.axiom then
-- grow L-system tree
minetest.remove_node(pos)
minetest.spawn_tree(pos, object)
elseif type(object) == "string" and minetest.registered_nodes[object] then
-- place node
minetest.set_node(pos, {name = object})
elseif type(object) == "function" then
-- function
object(pos)
end
end
-- sapling check
local function check_sapling(pos, nodename)
-- what is sapling placed on?
local under = minetest.get_node({
x = pos.x,
y = pos.y - 1,
z = pos.z
})
local can_grow, grow_on
-- check list for sapling and function
for n = 1, #saplings do
if saplings[n][1] == nodename then
grow_on = saplings[n][3]
-- sapling grows on top of specific node
if grow_on
and grow_on ~= "soil"
and grow_on ~= "sand"
and grow_on == under.name then
can_grow = true
end
-- sapling grows on top of soil (default)
if can_grow == nil
and (grow_on == nil or grow_on == "soil")
and minetest.get_item_group(under.name, "soil") > 0 then
can_grow = true
end
-- sapling grows on top of sand
if can_grow == nil
and grow_on == "sand"
and minetest.get_item_group(under.name, "sand") > 0 then
can_grow = true
end
-- check if we can grow sapling
if can_grow then
particle_effect(pos)
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grow_tree(pos, saplings[n][2])
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return
end
end
end
end
-- crops check
local function check_crops(pos, nodename, strength)
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local stage = ""
-- grow registered crops
for n = 1, #crops do
if string.find(nodename, crops[n][1])
or nodename == crops[n][3] then
-- get stage number or set to 0 for seed
stage = tonumber( nodename:split("_")[2] ) or 0
stage = math.min(stage + strength, crops[n][2])
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minetest.set_node(pos, {name = crops[n][1] .. stage})
particle_effect(pos)
return
end
end
end
-- check soil for specific decoration placement
local function check_soil(pos, nodename, strength)
-- set radius according to strength
local side = strength - 1
local tall = math.max(strength - 2, 0)
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-- get area of land with free space above
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local dirt = minetest.find_nodes_in_area_under_air(
{x = pos.x - side, y = pos.y - tall, z = pos.z - side},
{x = pos.x + side, y = pos.y + tall, z = pos.z + side},
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{"group:soil", "group:sand"})
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-- set default grass and decoration
local grass = green_grass
local decor = flowers
-- choose grass and decoration to use on dirt patch
for n = 1, #deco do
-- do we have a grass match?
if nodename == deco[n][1] then
grass = deco[n][2] or {}
decor = deco[n][3] or {}
end
end
local pos2, nod
-- loop through soil
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for _,n in pairs(dirt) do
pos2 = n
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pos2.y = pos2.y + 1
-- place random decoration (rare)
if math.random(1, 5) == 5 then
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nod = decor[math.random(1, #decor)] or ""
if nod ~= "" then
minetest.set_node(pos2, {name = nod})
end
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else
-- place random grass (common)
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nod = grass[math.random(1, #grass)] or ""
if nod ~= "" then
minetest.set_node(pos2, {name = nod})
end
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end
particle_effect(pos2)
end
end
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-- global functions
-- add to sapling list
-- {sapling node, schematic or function name, "soil"|"sand"|specific_node}
--e.g. {"default:sapling", default.grow_new_apple_tree, "soil"}
function bonemeal:add_sapling(list)
for n = 1, #list do
table.insert(saplings, list[n])
end
end
-- add to crop list to force grow
-- {crop name start_, growth steps, seed node (if required)}
-- e.g. {"farming:wheat_", 8, "farming:seed_wheat"}
function bonemeal:add_crop(list)
for n = 1, #list do
table.insert(crops, list[n])
end
end
-- add grass and flower/plant decoration for specific dirt types
-- {dirt_node, {grass_nodes}, {flower_nodes}
-- e.g. {"default:dirt_with_dry_grass", dry_grass, flowers}
function bonemeal:add_deco(list)
for n = 1, #list do
table.insert(deco, list[n])
end
end
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-- global on_use function for bonemeal
function bonemeal:on_use(pos, strength)
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-- get node pointed at
local node = minetest.get_node(pos)
-- return if nothing there
if node.name == "ignore" then
return
end
-- make sure strength is between 1 and 4
strength = strength or 2
strength = math.max(strength, 1)
strength = math.min(strength, 4)
-- grow grass and flowers
if minetest.get_item_group(node.name, "soil") > 0
or minetest.get_item_group(node.name, "sand") > 0 then
check_soil(pos, node.name, strength)
return
end
-- light check depending on strength (strength of 4 = no light needed)
if (minetest.get_node_light(pos) or 0) < (12 - (strength * 3)) then
return
end
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-- check for tree growth if pointing at sapling
if minetest.get_item_group(node.name, "sapling") > 0
and math.random(1, (5 - strength)) == 1 then
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check_sapling(pos, node.name)
return
end
-- check for crop growth
check_crops(pos, node.name, strength)
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end
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----- items
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-- mulch (strength 1)
minetest.register_craftitem("bonemeal:mulch", {
description = "Mulch",
inventory_image = "bonemeal_mulch.png",
on_use = function(itemstack, user, pointed_thing)
-- did we point at a node?
if pointed_thing.type ~= "node" then
return
end
-- is area protected?
if minetest.is_protected(pointed_thing.under, user:get_player_name()) then
return
end
-- take item if not in creative
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
-- call global on_use function with strength of 1
bonemeal:on_use(pointed_thing.under, 1)
return itemstack
end,
})
-- bonemeal (strength 2)
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minetest.register_craftitem("bonemeal:bonemeal", {
description = "Bone Meal",
inventory_image = "bonemeal_item.png",
on_use = function(itemstack, user, pointed_thing)
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-- did we point at a node?
if pointed_thing.type ~= "node" then
return
end
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-- is area protected?
if minetest.is_protected(pointed_thing.under, user:get_player_name()) then
return
end
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-- take item if not in creative
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
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-- call global on_use function with strength of 2
bonemeal:on_use(pointed_thing.under, 2)
return itemstack
end,
})
-- fertiliser (strength 3)
minetest.register_craftitem("bonemeal:fertiliser", {
description = "Fertiliser",
inventory_image = "bonemeal_fertiliser.png",
on_use = function(itemstack, user, pointed_thing)
-- did we point at a node?
if pointed_thing.type ~= "node" then
return
end
-- is area protected?
if minetest.is_protected(pointed_thing.under, user:get_player_name()) then
return
end
-- take item if not in creative
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
-- call global on_use function with strength of 3
bonemeal:on_use(pointed_thing.under, 3)
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return itemstack
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end,
})
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-- bone
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minetest.register_craftitem("bonemeal:bone", {
description = "Bone",
inventory_image = "bonemeal_bone.png",
})
--- crafting recipes
-- bonemeal (from bone)
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minetest.register_craft({
type = "shapeless",
output = "bonemeal:bonemeal 2",
recipe = {"bonemeal:bone"},
})
-- bonemeal (from player bones)
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minetest.register_craft({
type = "shapeless",
output = "bonemeal:bonemeal 4",
recipe = {"bones:bones"},
})
-- mulch
minetest.register_craft({
type = "shapeless",
output = "bonemeal:mulch 4",
recipe = {
"group:tree", "group:leaves", "group:leaves",
"group:leaves", "group:leaves", "group:leaves",
"group:leaves", "group:leaves", "group:leaves"
},
})
-- fertiliser
minetest.register_craft({
type = "shapeless",
output = "bonemeal:fertiliser 2",
recipe = {"bonemeal:bonemeal", "bonemeal:mulch"},
})
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-- add bones to dirt
minetest.override_item("default:dirt", {
drop = {
max_items = 1,
items = {
{
items = {"bonemeal:bone", "default:dirt"},
rarity = 30,
},
{
items = {"default:dirt"},
}
}
},
})
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-- add support for other mods
dofile(minetest.get_modpath("bonemeal") .. "/mods.lua")
print ("[MOD] Bonemeal loaded")