nalc/nalc_flowers/init.lua

local lilypad_def = table.copy(minetest.registered_nodes["flowers:waterlily"])
lilypad_def.description = "Lily Pad"
lilypad_def.tiles = {"flowers_lily_pad.png"}
lilypad_def.inventory_image = "flowers_lily_pad.png"
lilypad_def.wield_image = "flowers_lily_pad.png"
lilypad_def.on_place = function(itemstack, placer, pointed_thing)
		local pos = pointed_thing.above
		local node = minetest.get_node(pointed_thing.under)
		local def = minetest.registered_nodes[node.name]

		if def and def.on_rightclick then
			return def.on_rightclick(pointed_thing.under, node, placer, itemstack,
					pointed_thing)
		end

		if def and def.liquidtype == "source" and
		minetest.get_item_group(node.name, "water") > 0 then
			local player_name = placer and placer:get_player_name() or ""			
			if not minetest.is_protected(pos, player_name) then
				minetest.set_node(pos, {name = "nalc_flowers:lily_pad" ..
													(def.waving == 3 and "_waving" or ""),
												param2 = math.random(0, 3)})
				if not (creative and creative.is_enabled_for
						and creative.is_enabled_for(player_name)) then
					itemstack:take_item()
				end
			else
				minetest.chat_send_player(player_name, "Node is protected")
				minetest.record_protection_violation(pos, player_name)
			end
		end

		return itemstack
end

local lilypad_waving_def = table.copy(lilypad_def)
lilypad_waving_def.waving = 3
lilypad_waving_def.drop = "nalc_flowers:lily_pad"
lilypad_waving_def.groups.not_in_creative_inventory = 1

minetest.register_node("nalc_flowers:lily_pad", lilypad_def)
minetest.register_node("nalc_flowers:lily_pad_waving", lilypad_waving_def)

local function lily_pad_spread(pos, node)
	if minetest.get_node_light(pos, nil) < 9 then
		return
	end

	local positions = minetest.find_nodes_in_area_under_air(
		{x = pos.x - 1, y = pos.y-1, z = pos.z - 1},
		{x = pos.x + 1, y = pos.y-1, z = pos.z + 1},
		{"default:water_source"})

	if #positions == 0 then return end

	local pos2 = positions[math.random(#positions)]
	pos2.y = pos2.y+1
	if minetest.get_node_light(pos2, nil) >= 9 then
		minetest.set_node(pos2, {name = node.name})
	end
end
		
-- spawn ABM registration
minetest.register_abm({
		label = "Lilypad spread",
		nodenames = {"nalc_flowers:lily_pad_waving"},
		neighbors = {"default:jungletree"},
		interval = 600,
		chance = 5,
		action = function(...)
			lily_pad_spread(...)
		end,
})

minetest.register_decoration({
		name = "nalc_flowers:lily_pad",
		deco_type = "simple",
		place_on = {"default:dirt"},
		sidelen = 16,
		noise_params = {
			offset = -0.12,
			scale = 0.3,
			spread = {x=200, y=200, z=200},
			seed = 34,
			octaves = 3,
			persist = 0.7
		},
		biomes = {"rainforest_swamp"},
		y_min = 0,
		y_max = 0,
		decoration = "nalc_flowers:lily_pad_waving",
		param2 = 0,
		param2_max = 3,
		place_offset_y = 1,
})

minetest.register_alias("flowers:lily_pad", "nalc_flowers:lily_pad")
minetest.register_alias("nalc:lily_pad", "nalc_flowers:lily_pad")

-- Correction d'alias
minetest.register_alias("mushroom:poison", "flowers:mushroom_red")

minetest.log("action", "[nalc_flowers] loaded.")