technic/technic_worldgen/rubber.lua

-- Code of rubber tree by PilzAdam

local S = technic.worldgen.gettext

minetest.register_node(":moretrees:rubber_tree_sapling", {
	description = S("Rubber Tree Sapling"),
	drawtype = "plantlike",
	tiles = { "technic_rubber_sapling.png" },
	inventory_image = "technic_rubber_sapling.png",
	wield_image = "technic_rubber_sapling.png",
	paramtype = "light",
	walkable = false,
	groups = { dig_immediate = 3, flammable = 2 },
	sounds = default.node_sound_defaults(),
})

minetest.register_craft({
	type = "fuel",
	recipe = "moretrees:rubber_tree_sapling",
	burntime = 10
})

minetest.register_node(":moretrees:rubber_tree_trunk", {
	description = S("Rubber Tree"),
	tiles = {
		"default_tree_top.png", "default_tree_top.png",
		"technic_rubber_tree_full.png"
	},
	groups = {
		tree = 1,
		snappy = 1,
		choppy = 2,
		oddly_breakable_by_hand = 1,
		flammable = 2
	},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node(":moretrees:rubber_tree_trunk_empty", {
	description = S("Rubber Tree"),
	tiles = {
		"default_tree_top.png", "default_tree_top.png",
		"technic_rubber_tree_empty.png"
	},
	groups = {
		tree = 1,
		snappy = 1,
		choppy = 2,
		oddly_breakable_by_hand = 1,
		flammable = 2,
		not_in_creative_inventory = 1
	},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node(":moretrees:rubber_tree_leaves", {
	drawtype = "allfaces_optional",
	description = S("Rubber Tree Leaves"),
	tiles = { "technic_rubber_leaves.png" },
	paramtype = "light",
	groups = { snappy = 3, leafdecay = 3, flammable = 2, leaves = 1 },
	drop = {
		max_items = 1,
		items = {
			{
				items = { "moretrees:rubber_tree_sapling" },
				rarity = 20,
			},
			{
				items = { "moretrees:rubber_tree_leaves" },
			}
		}
	},
	sounds = default.node_sound_leaves_defaults(),
})

technic.rubber_tree_model = {
	axiom = "FFFFA",
	rules_a = "[&FFBFA]////[&BFFFA]////[&FBFFA]",
	rules_b = "[&FFA]////[&FFA]////[&FFA]",
	trunk = "moretrees:rubber_tree_trunk",
	leaves = "moretrees:rubber_tree_leaves",
	angle = 35,
	iterations = 3,
	random_level = 1,
	trunk_type = "double",
	thin_branches = true
}

minetest.register_abm({
	nodenames = { "moretrees:rubber_tree_sapling" },
	interval = 60,
	chance = 20,
	action = function(pos, node)
		minetest.remove_node(pos)
		minetest.spawn_tree(pos, technic.rubber_tree_model)
	end
})

if technic.config:get_bool("enable_rubber_tree_generation") then
	minetest.register_on_generated(function(minp, maxp, blockseed)
		if math.random(1, 100) > 5 then
			return
		end
		local tmp = {
			x = (maxp.x - minp.x) / 2 + minp.x,
			y = (maxp.y - minp.y) / 2 + minp.y,
			z = (maxp.z - minp.z) / 2 + minp.z
		}
		local pos = minetest.find_node_near(tmp, maxp.x - minp.x,
			{ "default:dirt_with_grass" })
		if pos ~= nil then
			minetest.spawn_tree({ x = pos.x, y = pos.y + 1, z = pos.z }, technic.rubber_tree_model)
		end
	end)
end