Merge branch 'master' into mcl_burning_depend

mods/ENTITIES/mcl_mobs/spawning.lua

@@ -71,6 +71,7 @@ local list_of_all_biomes = {
 	"JungleM_underground",
 	"ExtremeHillsM_underground",
 	"JungleEdgeM_underground",
+	"MangroveSwamp_underground",
 
 	-- ocean:
 
@@ -134,6 +135,8 @@ local list_of_all_biomes = {
 	"BirchForestM_deep_ocean",
 	"Taiga_deep_ocean",
 	"JungleM_ocean",
+	"MangroveSwamp_ocean",
+	"MangroveSwamp_deep_ocean",
 
 	-- water or beach?
 
@@ -157,6 +160,7 @@ local list_of_all_biomes = {
 	"MushroomIslandShore",
 	"JungleM_shore",
 	"Jungle_shore",
+	"MangroveSwamp_shore",
 
 	-- dimension biome:
 
@@ -202,6 +206,7 @@ local list_of_all_biomes = {
 	"MesaBryce",
 	"JungleEdge",
 	"SavannaM",
+	"MangroveSwamp",
 }
 
 -- count how many mobs are in an area

mods/ITEMS/mcl_core/functions.lua

@@ -312,6 +312,7 @@ local function check_growth_width(pos, width, height)
 	end
 	return true
 end
+mcl_core.check_growth_width = check_growth_width
 
 -- Check if a tree with id can grow at a position. Options is a table of flags
 -- for varieties of trees. The 'two_by_two' option is used to check if there is

mods/ITEMS/mcl_mangrove/init.lua

@@ -0,0 +1,542 @@
+local S = minetest.get_translator("mcl_mangrove")
+local modname = minetest.get_current_modname()
+local modpath = minetest.get_modpath(modname)
+
+local propagule_allowed_nodes = {
+	"mcl_core:dirt",
+	"mcl_core:coarse_dirt",
+	"mcl_core:dirt_with_grass",
+	"mcl_core:podzol",
+	"mcl_core:mycelium",
+	"mcl_lush_caves:rooted_dirt",
+	"mcl_lush_caves:moss",
+	"mcl_farming:soil",
+	"mcl_farming:soil_wet",
+	"mcl_core:clay",
+	"mcl_mud:mud",
+}
+local propagule_water_nodes = {"mcl_mud:mud","mcl_core:dirt","mcl_core:coarse_dirt","mcl_core:clay"}
+ --"mcl_lush_caves:moss","mcl_lush_caves:rooted_dirt
+
+local function get_drops(fortune_level)
+	local apple_chances = {200, 180, 160, 120, 40}
+	local stick_chances = {50, 45, 30, 35, 10}
+	local sapling_chances = {20, 16, 12, 10}
+	return {
+		max_items = 1,
+		items = {
+			{
+				items = {"mcl_mangrove:propagule"},
+				rarity = sapling_chances[fortune_level + 1] or sapling_chances[fortune_level]
+			},
+			{
+				items = {"mcl_core:stick 1"},
+				rarity = stick_chances[fortune_level + 1]
+			},
+			{
+				items = {"mcl_core:stick 2"},
+				rarity = stick_chances[fortune_level + 1]
+			},
+			{
+				items = {"mcl_core:apple"},
+				rarity = apple_chances[fortune_level + 1]
+			}
+		}
+	}
+end
+
+minetest.register_node("mcl_mangrove:mangrove_tree", {
+	description = S("Mangrove Wood"),
+	_doc_items_longdesc = S("The trunk of a Mangrove tree."),
+	_doc_items_hidden = false,
+	tiles = {"mcl_mangrove_log_top.png", "mcl_mangrove_log_top.png", "mcl_mangrove_log.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy=1,axey=1, tree=1, flammable=2, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=5},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	on_place = mcl_util.rotate_axis,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_mangrove:mangrove_stripped_trunk",
+})
+minetest.register_node("mcl_mangrove:mangrove_tree_bark", {
+	description = S("Mangrove Bark"),
+	_doc_items_longdesc = S("The bark of a Mangrove tree."),
+	_doc_items_hidden = false,
+	tiles = {"mcl_mangrove_log.png", "mcl_mangrove_log.png", "mcl_mangrove_log.png"},
+	paramtype2 = "facedir",
+	groups = {handy=1,axey=1, tree=1, flammable=2, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=5},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	on_place = mcl_util.rotate_axis,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_mangrove:mangrove_stripped_bark",
+})
+
+minetest.register_node("mcl_mangrove:mangrove_wood", {
+	description = S("Mangrove Wood Planks"),
+	_doc_items_longdesc = doc.sub.items.temp.build,
+	_doc_items_hidden = false,
+	tiles = {"mcl_mangrove_planks.png"},
+
+	is_ground_content = false,
+	groups = {handy=1,axey=1, flammable=3,wood=1,building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=20},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 3,
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_mangrove:mangroveleaves", {
+	description = S("Mangrove Leaves"),
+	_doc_items_longdesc = S("mangrove leaves are grown from mangrove trees."),
+	_doc_items_hidden = false,
+	drawtype = "allfaces_optional",
+	waving = 2,
+	place_param2 = 1, -- Prevent leafdecay for placed nodes
+	tiles = {"mcl_mangrove_leaves.png"},
+	paramtype = "light",
+	groups = {handy=1,shearsy=1,swordy=1, leafdecay=10, flammable=2, leaves=1, deco_block=1, dig_by_piston=1, fire_encouragement=30, fire_flammability=60},
+	_mcl_shears_drop = true,
+	sounds = mcl_sounds.node_sound_leaves_defaults(),
+	_mcl_blast_resistance = 0.2,
+	_mcl_hardness = 0.2,
+	_mcl_silk_touch_drop = true,
+	_mcl_fortune_drop = { get_drops(1), get_drops(2), get_drops(3), get_drops(4) },
+})
+
+minetest.register_node("mcl_mangrove:mangrove_stripped_trunk", {
+	description = "The stripped wood of a Mangove tree",
+	_doc_items_longdesc = "The stripped wood of a Mangove tree",
+	_doc_items_hidden = false,
+	tiles ={"mcl_stripped_mangrove_log_top.png","mcl_stripped_mangrove_log_side.png",},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy=1, axey=1, tree=1, flammable=2, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=5},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	on_rotate = mcl_util.rotate_axis_and_place,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+minetest.register_node("mcl_mangrove:mangrove_stripped_bark", {
+	description = "The stripped bark of a Mangove tree",
+	_doc_items_longdesc = "The stripped bark of a Mangove tree",
+	_doc_items_hidden = false,
+	tiles ={"mcl_stripped_mangrove_log_side.png","mcl_stripped_mangrove_log_side.png",},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy=1, axey=1, tree=1, flammable=2, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=5},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	on_rotate = mcl_util.rotate_axis_and_place,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_mangrove:mangrove_roots", {
+	description = "Mangrove_Roots",
+	_doc_items_longdesc = "Mangrove roots are decorative blocks that form as part of mangrove trees.",
+	_doc_items_hidden = false,
+	waving = 0,
+	place_param2 = 1, -- Prevent leafdecay for placed nodes
+	tiles = {
+		"mcl_mangrove_roots_top.png",
+		"mcl_mangrove_roots_side.png",
+		"mcl_mangrove_roots_side.png",
+	},
+	paramtype = "light",
+	drawtype = "allfaces_optional",
+	groups = {
+		handy = 1, hoey = 1, shearsy = 1, axey = 1, swordy = 1, dig_by_piston = 0,
+		leaves = 1, deco_block = 1,flammable = 10, fire_encouragement = 30, fire_flammability = 60,	compostability = 30
+	},
+	drop = "mcl_mangrove:mangrove_roots",
+	_mcl_shears_drop = true,
+	sounds = mcl_sounds.node_sound_leaves_defaults(),			_mcl_blast_resistance = 0.7,
+	_mcl_hardness = 0.7,
+	_mcl_silk_touch_drop = true,
+	_mcl_fortune_drop = { "mcl_mangrove:mangrove_roots 1", "mcl_mangrove:mangrove_roots 2", "mcl_mangrove:mangrove_roots 3", "mcl_mangrove:mangrove_roots 4" },
+})
+
+minetest.register_node("mcl_mangrove:propagule", {
+	description = S("mangrove_propagule"),
+	_tt_help = S("Needs soil and light to grow"),
+	_doc_items_longdesc = S("When placed on soil (such as dirt) and exposed to light, an propagule will grow into an mangrove after some time."),
+	_doc_items_hidden = false,
+	drawtype = "plantlike",
+	waving = 1,
+	visual_scale = 1.0,
+	tiles = {"mcl_mangrove_propagule_item.png"},
+	inventory_image = "mcl_mangrove_propagule_item.png",
+	wield_image = "mcl_mangrove_propagule_item.png",
+	paramtype = "light",
+	sunlight_propagates = true,
+	walkable = false,
+	selection_box = {
+		type = "fixed",
+		fixed = {-5/16, -0.5, -5/16, 5/16, 0.5, 5/16}
+	},
+	groups = {
+		plant = 1, sapling = 1, non_mycelium_plant = 1, attached_node = 1,
+		deco_block = 1, dig_immediate = 3, dig_by_water = 0, dig_by_piston = 1,
+		destroy_by_lava_flow = 1, compostability = 30
+	},
+	sounds = mcl_sounds.node_sound_leaves_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_int("stage", 0)
+	end,
+	node_placement_prediction = "",
+	_mcl_blast_resistance = 0,
+	_mcl_hardness = 0,
+	on_place = mcl_util.generate_on_place_plant_function(function(place_pos, place_node,stack)
+		local under = vector.offset(place_pos,0,-1,0)
+		local snn = minetest.get_node_or_nil(under).name
+		if not snn then return false end
+		if table.indexof(propagule_allowed_nodes,snn) ~= -1 then
+			local n = minetest.get_node(place_pos)
+			if minetest.get_item_group(n.name,"water") > 0 and table.indexof(propagule_water_nodes,snn) ~= -1 then
+					minetest.set_node(under,{name="mcl_mangrove:propagule_"..snn:split(":")[2]})
+					stack:take_item()
+					return stack
+			end
+			return true
+		end
+	end)
+})
+
+minetest.register_node("mcl_mangrove:hanging_propagule_1", {
+	description = S("Hanging Propagule"),
+	_tt_help = S("Grows on Mangrove leaves"),
+	_doc_items_longdesc = "",
+	_doc_items_usagehelp = "",
+	groups = {
+			plant = 1, not_in_creative_inventory=1, non_mycelium_plant = 1,
+			deco_block = 1, dig_immediate = 3, dig_by_water = 0, dig_by_piston = 1,
+			destroy_by_lava_flow = 1, compostability = 30
+		},
+	paramtype = "light",
+	paramtype2 = "",
+	on_rotate = false,
+	walkable = false,
+	drop = "mcl_mangrove:propagule",
+	use_texture_alpha = "clip",
+	drawtype = 'mesh',
+	mesh = 'propagule_hanging.obj',
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-0.125, -0.5, -0.125, 0.125, 0.5, 0.125}, -- Base
+		},
+	},
+	tiles = {"mcl_mangrove_propagule_hanging.png"},
+	inventory_image = "mcl_mangrove_propagule.png",
+	wield_image = "mcl_mangrove_propagule.png",
+})
+local propagule_rooted_nodes = {}
+for _,root in pairs(propagule_water_nodes) do
+	local r = root:split(":")[2]
+	local def = minetest.registered_nodes[root]
+	local tx = def.tiles
+	local n = "mcl_mangrove:propagule_"..r
+	table.insert(propagule_rooted_nodes,n)
+	minetest.register_node(n, {
+		drawtype = "plantlike_rooted",
+		paramtype = "light",
+		place_param2 = 1,
+		tiles = tx,
+		special_tiles = { { name = "mcl_mangrove_propagule_item.png" } },
+		inventory_image = "mcl_mangrove_propagule_item.png",
+		wield_image = "mcl_mangrove_propagule.png",
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{ -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
+				{ -0.5, 0.5, -0.5, 0.5, 1.0, 0.5 },
+			}
+		},
+		groups = {
+			plant = 1, sapling = 1, non_mycelium_plant = 1, attached_node = 1,not_in_creative_inventory=1,
+			deco_block = 1, dig_immediate = 3, dig_by_piston = 1,
+			destroy_by_lava_flow = 1, compostability = 30
+		},
+		sounds = mcl_sounds.node_sound_leaves_defaults(),
+		drop = "mcl_mangrove:propagule",
+		node_placement_prediction = "",
+		node_dig_prediction = "",
+		after_dig_node = function(pos)
+			minetest.set_node(pos, {name=root})
+		end,
+		_mcl_hardness = 0,
+		_mcl_blast_resistance = 0,
+		_mcl_silk_touch_drop = true,
+	})
+
+end
+
+
+mcl_flowerpots.register_potted_flower("mcl_mangrove:propagule", {
+	name = "propagule",
+	desc = S("Mangrove Propagule"),
+	image = "mcl_mangrove_propagule.png",
+})
+
+local water_tex = "default_water_source_animated.png^[verticalframe:16:0"
+
+local wlroots = {
+	description = ("water logged mangrove roots"),
+	_doc_items_entry_name = S("water logged mangrove roots"),
+	_doc_items_longdesc =
+		("Mangrove roots are decorative blocks that form as part of mangrove trees.").."\n\n"..
+		("Mangrove roots, despite being a full block, can be waterlogged and do not flow water out").."\n\n"..
+		("These cannot be crafted yet only occure when get in contact of water."),
+	_doc_items_hidden = false,
+	tiles = {
+		{name="default_water_source_animated.png", animation={type="vertical_frames", aspect_w=16, aspect_h=16, length=5.0}}
+	},
+	special_tiles = {
+		-- New-style water source material (mostly unused)
+		{
+			name="default_water_source_animated.png",
+			animation={type="vertical_frames", aspect_w=16, aspect_h=16, length=5.0},
+			backface_culling = false,
+		}
+	},
+	overlay_tiles = {
+		"mcl_mangrove_roots_top.png",
+		"mcl_mangrove_roots_side.png",
+		"mcl_mangrove_roots_side.png",
+	},
+	sounds = mcl_sounds.node_sound_water_defaults(),
+	drawtype = "allfaces_optional",
+	use_texture_alpha = "clip",
+	is_ground_content = false,
+	paramtype = "light",
+	walkable = true,
+	pointable = true,
+	diggable = true,
+	buildable_to = false,
+	liquids_pointable = true,
+	drop = "mcl_mangrove:mangrove_roots",
+
+		groups = {
+		handy = 1, hoey = 1, water=3, liquid=3, puts_out_fire=1, dig_by_piston = 1, deco_block = 1,  not_in_creative_inventory=1 },
+	_mcl_blast_resistance = 100,
+	_mcl_hardness = -1, -- Hardness intentionally set to infinite instead of 100 (Minecraft value) to avoid problems in creative mode
+	after_dig_node = function(pos)
+		local node = minetest.get_node(pos)
+		if minetest.get_item_group(node.name, "water") == 0 then
+			minetest.set_node(pos, {name="mcl_core:water_source"})
+		end
+	end,
+}
+local rwlroots = table.copy(wlroots)
+water_tex = "default_river_water_source_animated.png^[verticalframe:16:0"
+rwlroots.tiles = {
+	"("..water_tex..")^mcl_mangrove_roots_top.png",
+	"("..water_tex..")^mcl_mangrove_roots_side.png",
+	"("..water_tex..")^mcl_mangrove_roots_side.png",
+}
+
+minetest.register_node("mcl_mangrove:water_logged_roots", wlroots)
+minetest.register_node("mcl_mangrove:river_water_logged_roots",rwlroots)
+
+minetest.register_node("mcl_mangrove:mangrove_mud_roots", {
+	description = S("Muddy Mangrove Roots"),
+	_tt_help = S("crafted with Mud and Mangrove roots"),
+	_doc_items_longdesc = S("Muddy Mangrove Roots is a block from mangrove swamp.It drowns player a bit inside it"),
+	tiles = {
+		"mcl_mud.png^mcl_mangrove_roots_top.png",
+		"mcl_mud.png^mcl_mangrove_roots_side.png",
+		"mcl_mud.png^mcl_mangrove_roots_side.png",
+	},
+	is_ground_content = true,
+	groups = {handy = 1, shovely = 1, axey = 1, building_block = 1},
+	sounds = mcl_sounds.node_sound_sand_defaults(),
+	_mcl_blast_resistance = 0.7,
+	_mcl_hardness = 0.7,
+})
+
+mcl_doors:register_door("mcl_mangrove:mangrove_door", {
+	description = ("Mangrove Door"),
+	_doc_items_longdesc = "",
+	_doc_items_usagehelp = "",
+	inventory_image = "mcl_mangrove_doors.png",
+	groups = {handy=1,axey=1, material_wood=1, flammable=-1},
+	_mcl_hardness = 3,
+	_mcl_blast_resistance = 3,
+	tiles_bottom = {"mcl_mangrove_door_bottom.png", "mcl_mangrove_planks.png"},
+	tiles_top = {"mcl_mangrove_door_top.png", "mcl_mangrove_planks.png"},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+})
+
+mcl_doors:register_trapdoor("mcl_mangrove:mangrove_trapdoor", {
+	description = S("Mangrove Trapdoor"),
+	_doc_items_longdesc = S("Wooden trapdoors are horizontal barriers which can be opened and closed by hand or a redstone signal. They occupy the upper or lower part of a block, depending on how they have been placed. When open, they can be climbed like a ladder."),
+	_doc_items_usagehelp = S("To open or close the trapdoor, rightclick it or send a redstone signal to it."),
+	tile_front = "mcl_mangrove_trapdoor.png",
+	tile_side = "mcl_mangrove_planks.png",
+	wield_image = "mcl_mangrove_trapdoor.png",
+	groups = {handy=1,axey=1, mesecon_effector_on=1, material_wood=1, flammable=-1},
+	_mcl_hardness = 3,
+	_mcl_blast_resistance = 3,
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+})
+
+mcl_fences.register_fence_and_fence_gate(
+	"mangrove_wood_fence",
+	S("Mangrove Wood Fence"),
+	S("Mangrove Wood Plank Fence"),
+	"mcl_mangrove_fence.png",
+	{handy=1,axey=1, flammable=2,fence_wood=1, fire_encouragement=5, fire_flammability=20},
+	minetest.registered_nodes["mcl_core:wood"]._mcl_hardness,
+	minetest.registered_nodes["mcl_core:wood"]._mcl_blast_resistance,
+	{"group:fence_wood"},
+	mcl_sounds.node_sound_wood_defaults(), "mcl_mangrove_mangrove_wood_fence_gate_open", "mcl_mangrove_mangrove_wood_fence_gate_close", 1, 1,
+	"mcl_mangrove_fence_gate.png")
+
+mcl_stairs.register_stair("mangrove_wood", "mcl_mangrove:mangrove_wood",
+	{handy=1,axey=1, flammable=3,wood_stairs=1, material_wood=1, fire_encouragement=5, fire_flammability=20},
+	{"mcl_mangrove_planks.png"},
+	S("Mangrove Wood Stairs"),
+	mcl_sounds.node_sound_wood_defaults(), 3, 2,
+	"woodlike")
+
+mcl_stairs.register_slab("mangrove_wood", "mcl_mangrove:mangrove_wood",
+	{handy=1,axey=1, flammable=3,wood_slab=1, material_wood=1, fire_encouragement=5, fire_flammability=20},
+	{"mcl_mangrove_planks.png"},
+	S("Mangrove Wood Slab"),
+	mcl_sounds.node_sound_wood_defaults(), 3, 2,
+	S("Double Mangrove Wood Slab"))
+
+minetest.register_craft({
+	output = "mcl_mangrove:mangrove_tree_bark 3",
+	recipe = {
+		{ "mcl_mangrove:mangrove_tree", "mcl_mangrove:mangrove_tree" },
+		{ "mcl_mangrove:mangrove_tree", "mcl_mangrove:mangrove_tree" },
+	}
+})
+
+minetest.register_craft({
+	output = "mcl_mangrove:mangrove_mud_roots",
+	recipe = {
+		{"mcl_mangrove:mangrove_roots", "mcl_mud:mud",},
+	}
+})
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "mcl_mangrove:mangrove_door",
+	burntime = 15,
+})
+
+minetest.register_craft({
+	output = "mcl_mangrove:mangrove_door 3",
+	recipe = {
+		{"mcl_mangrove:mangrove_wood", "mcl_mangrove:mangrove_wood"},
+		{"mcl_mangrove:mangrove_wood", "mcl_mangrove:mangrove_wood"},
+		{"mcl_mangrove:mangrove_wood", "mcl_mangrove:mangrove_wood"},
+	}
+})
+
+minetest.register_craft({
+	output = "mcl_mangrove:mangrove_trapdoor 2",
+	recipe = {
+		{"mcl_mangrove:mangrove_wood","mcl_mangrove:mangrove_wood","mcl_mangrove:mangrove_wood"},
+		{"mcl_mangrove:mangrove_wood","mcl_mangrove:mangrove_wood","mcl_mangrove:mangrove_wood"},
+	}
+})
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "mcl_mangrove:mangrove_trapdoor",
+	burntime = 15,
+})
+
+minetest.register_craft({
+		output = "mcl_mangrove:mangrove_wood_fence_gate",
+		recipe = {
+			{"mcl_core:stick", "mcl_mangrove:mangrove_wood", "mcl_core:stick"},
+			{"mcl_core:stick", "mcl_mangrove:mangrove_wood", "mcl_core:stick"},
+		}
+	})
+
+minetest.register_craft({
+		output = "mcl_mangrove:mangrove_wood_fence 3",
+		recipe = {
+			{"mcl_mangrove:mangrove_wood", "mcl_core:stick", "mcl_mangrove:mangrove_wood"},
+			{"mcl_mangrove:mangrove_wood", "mcl_core:stick", "mcl_mangrove:mangrove_wood"},
+		}
+	})
+
+minetest.register_craft({
+		output = "mcl_mangrove:mangrove_wood 4",
+		recipe = {
+			{"mcl_mangrove:mangrove_tree"},
+		}
+	})
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "group:fence_wood",
+	burntime = 15,
+})
+
+local adjacents = {
+	vector.new(1,0,0),
+	vector.new(-1,0,0),
+	vector.new(0,0,1),
+	vector.new(0,0,-1),
+}
+
+minetest.register_abm({
+	label = "Waterlog mangrove roots",
+	nodenames = {"mcl_mangrove:mangrove_roots"},
+	neighbors = {"group:water"},
+	interval = 5,
+	chance = 5,
+	action = function(pos,value)
+		for _,v in pairs(adjacents) do
+			local n = minetest.get_node(vector.add(pos,v)).name
+			if minetest.get_item_group(n,"water") > 0 then
+				if n:find("river") then
+					minetest.swap_node(pos,{name="mcl_mangrove:river_water_logged_roots"})
+					return
+				else
+					minetest.swap_node(pos,{name="mcl_mangrove:water_logged_roots"})
+					return
+				end
+			end
+		end
+	end
+})
+
+local abm_nodes = table.copy(propagule_rooted_nodes)
+table.insert(abm_nodes,"mcl_mangrove:propagule")
+minetest.register_abm({
+	label = "Mangrove_tree_growth",
+	nodenames = abm_nodes,
+	interval = 30,
+	chance = 5,
+	action = function(pos,node)
+		local pr = PseudoRandom(pos.x+pos.y+pos.z)
+		local r = pr:next(1,5)
+		local path = modpath .."/schematics/mcl_mangrove_tree_"..tostring(r)..".mts"
+		local w = 5
+		local h = 10
+		local fp = true
+		pos.y = pos.y - 1
+		if table.indexof(propagule_rooted_nodes,node.name) ~= -1 then
+			local nn = minetest.find_nodes_in_area(vector.offset(pos,0,-1,0),vector.offset(pos,0,h,0),{"group:water","air"})
+			if #nn >= h then
+				minetest.place_schematic(pos, path, "random", function()
+					local nnv = minetest.find_nodes_in_area(vector.offset(pos,-5,-1,-5),vector.offset(pos,5,h/2,5),{"mcl_core:vine"})
+					minetest.bulk_set_node(nnv,{"air"})
+				end, true, "place_center_x, place_center_z")
+			end
+			return
+		end
+		if r > 3 then h = 18 end
+		if mcl_core.check_growth_width(pos,w,h) then
+			minetest.place_schematic(pos, path, "random", nil, true, "place_center_x, place_center_z")
+		end
+end
+})

mods/ITEMS/mcl_mangrove/mod.conf

@@ -0,0 +1,3 @@
+name = mcl_mangrove
+author = thunder1035
+depends = mcl_core, mcl_doors, mcl_stairs, mcl_walls, mclx_fences, mcl_boats, mcl_flowerpots, mcl_mud, mcl_util

mods/ITEMS/mcl_mangrove/models/propagule.obj

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+# Blender v3.1.2 OBJ File: 'propagule.blend'
+# www.blender.org
+mtllib propagule.mtl
+o Plane
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+vn 0.6947 0.0000 -0.7193
+usemtl default_dirt.png.001
+s off
+f 1/1/1 2/2/1 4/3/1 3/4/1
+s 1
+f 5/5/2 6/6/3 7/7/4 8/8/5
+f 9/9/6 10/10/7 5/11/2 8/8/5
+f 11/12/8 9/13/6 8/14/5 7/15/4
+f 10/16/7 12/17/9 6/18/3 5/19/2
+usemtl mcl_mangrove_propagule.png.001
+f 13/20/10 14/21/10 15/22/10 16/23/10
+f 17/24/11 18/25/11 19/26/11 20/27/11

mods/ITEMS/mcl_mangrove/models/propagule_hanging.obj

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+# www.blender.org
+mtllib propagule_hanging.mtl
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mods/MAPGEN/mcl_biomes/init.lua

@@ -11,6 +11,7 @@ local mod_mcl_core = minetest.get_modpath("mcl_core")
 local mod_mcl_mushrooms = minetest.get_modpath("mcl_mushrooms")
 local mod_mcl_crimson = minetest.get_modpath("mcl_crimson")
 local mod_mcl_blackstone = minetest.get_modpath("mcl_blackstone")
+local mod_mcl_mangrove = minetest.get_modpath("mcl_mangrove")
 
 -- Jungle bush schematic. In PC/Java Edition it's Jungle Wood + Oak Leaves
 local jungle_bush_schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves.mts"
@@ -127,6 +128,7 @@ local function register_biomes()
 		"MesaBryce",
 		"MesaPlateauF",
 		"MesaPlateauFM",
+		"MangroveSwamp",
 	}
 
 	-- Ice Plains Spikes (rare)
@@ -1342,6 +1344,54 @@ local function register_biomes()
 		_mcl_palette_index = 27,
 	})
 
+	-- Mangrove swamp
+	minetest.register_biome({
+		name = "MangroveSwamp",
+		node_top = "mcl_mud:mud",
+		depth_top = 1,
+		node_filler = "mcl_mud:mud",
+		depth_filler = 3,
+		node_riverbed = "mcl_core:dirt",
+		depth_riverbed = 2,
+		y_min = 1,
+		-- Note: Limited in height!
+		y_max = 27,
+		humidity_point = 95,
+		heat_point = 94,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 27,
+	})
+	minetest.register_biome({
+		name = "MangroveSwamp_shore",
+		node_top = "mcl_mud:mud",
+		depth_top = 1,
+		node_filler = "mcl_mud:mud",
+		depth_filler = 3,
+		node_riverbed = "mcl_core:dirt",
+		depth_riverbed = 2,
+		y_min = -5,
+		y_max = 0,
+		humidity_point = 95,
+		heat_point = 94,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 27,
+	})
+	minetest.register_biome({
+		name = "MangroveSwamp_ocean",
+		node_top = "mcl_core:dirt",
+		depth_top = 1,
+		node_filler = "mcl_core:dirt",
+		depth_filler = 3,
+		node_riverbed = "mcl_core:gravel",
+		depth_riverbed = 2,
+		y_min = OCEAN_MIN,
+		y_max = -6,
+		vertical_blend = 1,
+		humidity_point = 95,
+		heat_point = 94,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 27,
+	})
 	-- Swampland
 	minetest.register_biome({
 		name = "Swampland",
@@ -2422,11 +2472,11 @@ local function register_grass_decoration(grasstype, offset, scale, biomes)
 	local place_on, seed, node
 	if grasstype == "fern" then
 		node = "mcl_flowers:fern"
-		place_on = {"group:grass_block_no_snow", "mcl_core:podzol"}
+		place_on = {"group:grass_block_no_snow", "mcl_core:podzol","mcl_mud:mud"}
 		seed = 333
 	elseif grasstype == "tallgrass" then
 		node = "mcl_flowers:tallgrass"
-		place_on = {"group:grass_block_no_snow"}
+		place_on = {"group:grass_block_no_snow","mcl_mud:mud"}
 		seed = 420
 	end
 	local noise = {
@@ -2513,6 +2563,7 @@ local warm_oceans = {
 	"Jungle_ocean",
 	"Desert_ocean",
 	"JungleM_ocean",
+	"MangroveSwamp_ocean"
 }
 local corals = {
 	"brain",
@@ -2536,7 +2587,7 @@ local function register_coral_decos(ck)
 		}
 	minetest.register_decoration({
 		deco_type = "schematic",
-		place_on = {"group:sand","mcl_core:gravel"},
+		place_on = {"group:sand","mcl_core:gravel","mcl_mud:mud"},
 		sidelen = 80,
 		noise_params = noise,
 		biomes = warm_oceans,
@@ -2548,7 +2599,7 @@ local function register_coral_decos(ck)
 	})
 	minetest.register_decoration({
 		deco_type = "schematic",
-		place_on = {"group:sand","mcl_core:gravel"},
+		place_on = {"group:sand","mcl_core:gravel","mcl_mud:mud"},
 		noise_params = noise,
 		sidelen = 80,
 		biomes = warm_oceans,
@@ -2594,7 +2645,7 @@ local function register_decorations()
 	end
 	minetest.register_decoration({
 		deco_type = "simple",
-		place_on = {"group:sand","mcl_core:gravel"},
+		place_on = {"group:sand","mcl_core:gravel","mcl_mud:mud"},
 		sidelen = 16,
 		noise_params = {
 			offset = -0.0085,
@@ -2976,6 +3027,126 @@ local function register_decorations()
 		rotation = "random",
 	})
 
+	minetest.register_decoration({
+		name = "mcl_biomes:mangrove_tree_1",
+		deco_type = "schematic",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.0065,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_mangrove.."/schematics/mcl_mangrove_tree_1.mts",
+		flags = "place_center_x, place_center_z, force_placement",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		name = "mcl_biomes:mangrove_tree_2",
+		deco_type = "schematic",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.0045,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = -1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_mangrove.."/schematics/mcl_mangrove_tree_2.mts",
+		flags = "place_center_x, place_center_z, force_placement",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		name = "mcl_biomes:mangrove_tree_3",
+		deco_type = "schematic",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.023,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = -1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_mangrove.."/schematics/mcl_mangrove_tree_3.mts",
+		flags = "place_center_x, place_center_z, force_placement",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		name = "mcl_biomes:mangrove_tree_4",
+		deco_type = "schematic",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.023,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = -1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_mangrove.."/schematics/mcl_mangrove_tree_4.mts",
+		flags = "place_center_x, place_center_z, force_placement",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		name = "mcl_biomes:mangrove_tree_4",
+		deco_type = "schematic",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.023,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = -1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_mangrove.."/schematics/mcl_mangrove_tree_5.mts",
+		flags = "place_center_x, place_center_z, force_placement",
+		rotation = "random",
+	})
+
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.045,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = 0,
+		y_max = 0,
+		decoration = "mcl_mangrove:water_logged_roots",
+		flags = "place_center_x, place_center_z, force_placement",
+	})
+
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_mangrove:mangrove_roots"},
+		spawn_by = {"group:water"},
+		num_spawn_by = 2,
+		sidelen = 80,
+		fill_ratio = 10,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		y_min = 0,
+		y_max = 0,
+		decoration = "mcl_mangrove:water_logged_roots",
+		flags = "place_center_x, place_center_z, force_placement, all_ceilings",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.045,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		place_offset_y = -1,
+		decoration = "mcl_mangrove:mangrove_mud_roots",
+		flags = "place_center_x, place_center_z, force_placement",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_mud:mud"},
+		sidelen = 80,
+		fill_ratio = 0.008,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		decoration = "mcl_core:deadbush",
+		flags = "place_center_x, place_center_z",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_core:water_source"},
+		sidelen = 80,
+		fill_ratio = 0.035,
+		biomes = {"MangroveSwamp","MangroveSwamp_shore"},
+		decoration = "mcl_flowers:waterlily",
+		flags = "place_center_x, place_center_z, liquid_surface",
+	})
+
 	-- Jungle tree
 
 	-- Huge jungle tree (2 variants)
@@ -3975,7 +4146,7 @@ local function register_decorations()
 	-- Grasses and ferns
 	local grass_forest = {"Plains", "Taiga", "Forest", "FlowerForest", "BirchForest", "BirchForestM", "RoofedForest", "Swampland", }
 	local grass_mpf = {"MesaPlateauF_grasstop"}
-	local grass_plains = {"Plains", "SunflowerPlains", "JungleEdge", "JungleEdgeM" }
+	local grass_plains = {"Plains", "SunflowerPlains", "JungleEdge", "JungleEdgeM", "MangroveSwamp" }
 	local grass_savanna = {"Savanna", "SavannaM"}
 	local grass_sparse = {"ExtremeHills", "ExtremeHills+", "ExtremeHills+_snowtop", "ExtremeHillsM", "Jungle" }
 	local grass_mpfm = {"MesaPlateauFM_grasstop" }
@@ -3998,7 +4169,7 @@ local function register_decorations()
 	register_grass_decoration("tallgrass", 0.05, -0.03, grass_sparse)
 	register_grass_decoration("tallgrass", 0.05, 0.05, grass_mpfm)
 
-	local fern_minimal = { "Jungle", "JungleM", "JungleEdge", "JungleEdgeM", "Taiga", "MegaTaiga", "MegaSpruceTaiga", "ColdTaiga" }
+	local fern_minimal = { "Jungle", "JungleM", "JungleEdge", "JungleEdgeM", "Taiga", "MegaTaiga", "MegaSpruceTaiga", "ColdTaiga", "MangroveSwamp" }
 	local fern_low = { "Jungle", "JungleM", "JungleEdge", "JungleEdgeM", "Taiga", "MegaTaiga", "MegaSpruceTaiga" }
 	local fern_Jungle = { "Jungle", "JungleM", "JungleEdge", "JungleEdgeM" }
 	--local fern_JungleM = { "JungleM" },
@@ -4724,14 +4895,42 @@ if mg_name ~= "singlenode" then
 		minetest.get_decoration_id("mcl_biomes:warped_tree2"),
 		minetest.get_decoration_id("mcl_biomes:warped_tree3")
 	}
+	local deco_ids_trees = {
+		minetest.get_decoration_id("mcl_biomes:mangrove_tree_1"),
+		minetest.get_decoration_id("mcl_biomes:mangrove_tree_2"),
+		minetest.get_decoration_id("mcl_biomes:mangrove_tree_3"),
+	}
 	for _,f in pairs(deco_ids_fungus) do
 		minetest.set_gen_notify({decoration=true}, { f })
 	end
-	if deco_id_chorus_plant or deco_id_crimson_tree or deco_id_warped_tree then
+	for _,f in pairs(deco_ids_trees) do
+		minetest.set_gen_notify({decoration=true}, { f })
+	end
+	if deco_id_chorus_plant or deco_ids_fungus or deco_ids_trees then
 		mcl_mapgen_core.register_generator("chorus_grow", nil, function(minp, maxp, blockseed)
-			if minp.y > -26900 then return end
 			local gennotify = minetest.get_mapgen_object("gennotify")
 			local pr = PseudoRandom(blockseed + 14)
+			for _,f in pairs(deco_ids_trees) do
+				for _, pos in ipairs(gennotify["decoration#"..f] or {}) do
+					local nn=minetest.find_nodes_in_area(vector.offset(pos,-8,-1,-8),vector.offset(pos,8,0,8),{"mcl_mangrove:mangrove_roots"})
+					for _,v in pairs(nn) do
+						local l = pr:next(2,16)
+						local n = minetest.get_node(vector.offset(v,0,-1,0)).name
+						if minetest.get_item_group(n,"water") > 0 then
+							local wl = "mcl_mangrove:water_logged_roots"
+							if n:find("river") then
+								wl = "mcl_mangrove:river_water_logged_roots"
+							end
+							minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(v,0,0,0),vector.offset(v,0,-l,0),{"group:water"}),{name=wl})
+						elseif n == "mcl_mud:mud" then
+							minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(v,0,0,0),vector.offset(v,0,-l,0),{"mcl_mud:mud"}),{name="mcl_mangrove:mangrove_mud_roots"})
+						elseif n == "air" then
+							minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(v,0,0,0),vector.offset(v,0,-l,0),{"air"}),{name="mcl_mangrove:mangrove_roots"})
+						end
+					end
+				end
+			end
+			if minp.y > -26900 then return end
 			for _, pos in ipairs(gennotify["decoration#"..deco_id_chorus_plant] or {}) do
 				local x, y, z = pos.x, pos.y, pos.z
 				if x < -2 or x > 2 or z < -2 or z > 2 then

mods/MAPGEN/mcl_biomes/mod.conf

@@ -1,4 +1,4 @@
 name = mcl_biomes
 author = maikerumine
 description = Adds the various biomes and biome-related things for non-v6 map generators.
-depends = mcl_init, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean, mcl_crimson, mcl_blackstone
+depends = mcl_init, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean, mcl_crimson, mcl_blackstone, mcl_mangrove