>ROllerozxa at 19:11, 25 January 2023

2023-01-25T19:11:38Z

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{{UnofficialLua}}
{{DISPLAYTITLE:minetest.spawn_tree}}
== Syntax ==
<source>minetest.spawn_tree(pos, tree)</source>

== Description ==
* <code>pos</code> — position
* <code>tree</code> — treedef

Spawns an L-system tree at position <code>pos</code>, using the tree definition <code>tree</code>.

See [[Introduction to L-system trees]] for a description of L-system trees.

== Example ==
This code adds the chat command "/spawn_tree" to spawn an apple tree with its origin at the current position of the player, assuming that [http://wiki.minetest.net/Subgames/Minetest%20Game Minetest Game] is used:
<source>
local treedef = {
axiom="FFFFFAFFBF",
rules_a="[&&&FFFFF&&FFFF][&&&++++FFFFF&&FFFF][&&&----FFFFF&&FFFF]",
rules_b="[&&&++FFFFF&&FFFF][&&&--FFFFF&&FFFF][&&&------FFFFF&&FFFF]",
trunk="default:tree",
leaves="default:leaves",
angle=30,
iterations=2,
random_level=0,
trunk_type="single",
thin_branches=true,
fruit_chance=10,
fruit="default:apple"
}

core.register_chatcommand("spawn_tree", {
params = "", description = "Spawns tree at player position",
func = function(name, param)
local pos = minetest.get_player_by_name(name):getpos()
minetest.chat_send_player(name, "Spawning tree at " .. minetest.pos_to_string(pos)
.. ", please wait")
minetest.spawn_tree(pos, treedef)
return true, "successfully spawned"
end,
})
</source>

The resulting tree may look like this:

[[File:Apple Tree.png|420px]]

== Notes ==

* For examples, go to [[L-system tree examples]]
* VanessaE's [https://forum.minetest.net/viewtopic.php?id=3898 plants_lib] mod ([https://github.com/VanessaE/plantlife/blob/master/plants_lib/ github]) provides functions to register L-system trees to be spawned during map generation, and finds places for them to spawn based on the map seed and biome.
* [https://forum.minetest.net/viewtopic.php?f=11&t=9458 L-System Tree Utility] is a mod which helps to create L-system trees in-game

[[Category:Methods|s]]

Minetest.spawn tree - Revision history

>ROllerozxa at 19:11, 25 January 2023