Heavily refactor nodes in mcl_core

mods/ITEMS/mcl_core/nodes_cactuscane.lua

@@ -0,0 +1,110 @@
+-- Cactus and Sugar Cane
+
+minetest.register_node("mcl_core:cactus", {
+	description = "Cactus",
+	_doc_items_longdesc = "This is a piece of cactus commonly found in dry areas, especially deserts. Over time, cacti will grow up to 3 blocks high on sand or red sand. A cactus hurts living beings touching it with a damage of 1 HP every half second. When a cactus block is broken, all cactus blocks connected above it will break as well.",
+	_doc_items_usagehelp = "A cactus can only be placed on top of another cactus or any sand.",
+	drawtype = "nodebox",
+	tiles = {"default_cactus_top.png", "mcl_core_cactus_bottom.png", "default_cactus_side.png","default_cactus_side.png","default_cactus_side.png","default_cactus_side.png"},
+	is_ground_content = true,
+	stack_max = 64,
+	groups = {handy=1, attached_node=1, plant=1, deco_block=1, dig_by_piston=1, enderman_takable=1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	paramtype = "light",
+	sunlight_propagates = true,
+	node_placement_prediction = "",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-7/16, -8/16, -7/16,  7/16, 8/16,  7/16}, -- Main body
+			{-8/16, -8/16, -7/16,  8/16, 8/16, -7/16}, -- Spikes
+			{-8/16, -8/16,  7/16,  8/16, 8/16,  7/16}, -- Spikes
+			{-7/16, -8/16, -8/16, -7/16, 8/16,  8/16}, -- Spikes
+			{7/16,  -8/16,  8/16,  7/16, 8/16, -8/16}, -- Spikes
+		},
+	},
+	collision_box = {
+		type = "fixed",
+		fixed = {-7/16, -8/16, -7/16,  7/16, 7/16,  7/16}, -- Main body. slightly lower than node box
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-7/16, -8/16, -7/16, 7/16, 8/16, 7/16},
+		},
+	},
+	-- Only allow to place cactus on sand or cactus
+	on_place = mcl_util.generate_on_place_plant_function(function(pos, node)
+		local node_below = minetest.get_node_or_nil({x=pos.x,y=pos.y-1,z=pos.z})
+		if not node_below then return false end
+		return (node_below.name == "mcl_core:cactus" or minetest.get_item_group(node_below.name, "sand") == 1)
+	end),
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 0.4,
+})
+
+minetest.register_node("mcl_core:reeds", {
+	description = "Sugar Canes",
+	_doc_items_longdesc = "Sugar canes are a plant which has some uses in crafting. Sugar canes will slowly grow up to 3 blocks when they are next to water and are placed on a grass block, dirt, sand, red sand, podzol or coarse dirt. When a sugar cane is broken, all sugar canes connected above will break as well.",
+	_doc_items_usagehelp = "Sugar canes can only be placed on blocks on which they would grow.",
+	drawtype = "plantlike",
+	tiles = {"default_papyrus.png"},
+	inventory_image = "mcl_core_reeds.png",
+	wield_image = "mcl_core_reeds.png",
+	paramtype = "light",
+	walkable = false,
+	is_ground_content = true,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-7/16, -8/16, -7/16,  7/16, 8/16,  7/16}, -- Main Body
+			{-8/16, -8/16, -7/16,  8/16, 8/16, -7/16}, -- Spikes
+			{-8/16, -8/16,  7/16,  8/16, 8/16,  7/16}, -- Spikes
+			{-7/16, -8/16, -8/16, -7/16, 8/16,  8/16}, -- Spikes
+			{7/16,  -8/16,  8/16,  7/16, 8/16, -8/16}, -- Spikes
+		},
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-6/16, -8/16, -6/16, 6/16, 8/16, 6/16},
+		},
+	},
+	stack_max = 64,
+	groups = {dig_immediate=3, craftitem=1, plant=1, non_mycelium_plant=1, dig_by_piston=1},
+	sounds = mcl_sounds.node_sound_leaves_defaults(),
+	node_placement_prediction = "",
+	on_place = mcl_util.generate_on_place_plant_function(function(place_pos, place_node)
+		local soil_pos = {x=place_pos.x, y=place_pos.y-1, z=place_pos.z}
+		local soil_node = minetest.get_node_or_nil(soil_pos)
+		if not soil_node then return false end
+		local snn = soil_node.name -- soil node name
+
+		-- Placement rules:
+		-- * On group:soil_sugarcane
+		-- * Next to water or frosted ice
+		if minetest.get_item_group(snn, "soil_sugarcane") == 0 then
+			return false
+		end
+
+		local posses = {
+			{ x=0, y=0, z=1},
+			{ x=0, y=0, z=-1},
+			{ x=1, y=0, z=0},
+			{ x=-1, y=0, z=0},
+		}
+		for p=1, #posses do
+			local checknode = minetest.get_node(vector.add(soil_pos, posses[p]))
+			if minetest.get_item_group(checknode.name, "water") ~= 0 or minetest.get_item_group(checknode.name, "frosted_ice") ~= 0 then
+				-- Water found! Sugar canes are happy! :-)
+				return true
+			end
+		end
+
+		-- No water found! Sugar canes are not amuzed and refuses to be placed. :-(
+		return false
+
+	end),
+	_mcl_blast_resistance = 0,
+	_mcl_hardness = 0,
+})