ethereal/dirt.lua

-- override default dirt (to stop caves cutting away dirt)
minetest.override_item("default:dirt", {is_ground_content = false})

-- green dirt
minetest.register_node("ethereal:green_dirt", {
	description = "Green Dirt",
	tiles = {
		"default_grass.png",
		"default_dirt.png",
		"default_dirt.png^default_grass_side.png"
	},
	is_ground_content = false,
	groups = {crumbly = 3, soil = 1, ethereal_grass = 1},
	soil = {
		base = "ethereal:green_dirt",
		dry = "farming:soil",
		wet = "farming:soil_wet"
	},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults()
})

-- dry dirt
minetest.register_node("ethereal:dry_dirt", {
	description = "Dried Dirt",
	tiles = {"ethereal_dry_dirt.png"},
	is_ground_content = false,
	groups = {crumbly = 3},
	sounds = default.node_sound_dirt_defaults()
})

minetest.register_craft({
	type = "cooking",
	output = "ethereal:dry_dirt",
	recipe = "default:dirt",
	cooktime = 3,
})

local dirts = {
	"Bamboo", "Jungle", "Grove", "Prairie", "Cold",
	"Crystal", "Mushroom", "Fiery", "Gray"
}

for n = 1, #dirts do

	local desc = dirts[n]
	local name = desc:lower()

	minetest.register_node("ethereal:"..name.."_dirt", {
		description = desc.." Dirt",
		tiles = {
			"ethereal_grass_"..name.."_top.png",
			"default_dirt.png",
			"default_dirt.png^ethereal_grass_"..name.."_side.png"
		},
		is_ground_content = false,
		groups = {crumbly = 3, soil = 1, ethereal_grass = 1},
		soil = {
			base = "ethereal:"..name.."_dirt",
			dry = "farming:soil",
			wet = "farming:soil_wet"
		},
		drop = "default:dirt",
		sounds = default.node_sound_dirt_defaults()
	})

end

-- Compatibility with old maps
minetest.register_alias("ethereal:crystal_topped_dirt", "ethereal:crystal_dirt")
minetest.register_alias("ethereal:fiery_dirt_top", "ethereal:fiery_dirt")
minetest.register_alias("ethereal:gray_dirt_top", "ethereal:gray_dirt")
minetest.register_alias("ethereal:green_dirt_top", "ethereal:green_dirt")

-- check surrounding grass and change dirt to same colour (by Sokomine)
minetest.register_abm({
	nodenames = {"default:dirt_with_grass"},
	interval = 5,
	chance = 2,
	catch_up = false,
	action = function(pos, node)

		local count_grasses = {}
		local curr_max  = 0
		local curr_type = "ethereal:green_dirt" -- fallback
		local positions = minetest.find_nodes_in_area(
			{x = (pos.x - 1), y = (pos.y - 2), z = (pos.z - 1)},
			{x = (pos.x + 1), y = (pos.y + 2), z = (pos.z + 1)},
			"group:ethereal_grass")

		-- count new grass nodes
		for _,p in pairs(positions) do

			local n = minetest.get_node(p).name

			count_grasses[n] = (count_grasses[n] or 0) + 1

			-- we found a grass type with more than current max
			if count_grasses[n] > curr_max then
				curr_max = count_grasses[n]
				curr_type = n
			end
		end

		minetest.swap_node(pos, {name = curr_type})
	end
})

-- have dirt with dry grass spreads like ethereal grasses
minetest.override_item("default:dirt_with_dry_grass", {
	groups = {crumbly = 3, soil = 1, ethereal_grass = 1},
})

-- if grass devoid of light, change to dirt
minetest.register_abm({
	nodenames = {"group:ethereal_grass"},
	interval = 2,
	chance = 20,
	catch_up = false,
	action = function(pos, node)

		local name = minetest.get_node({
			x = pos.x,
			y = pos.y + 1,
			z = pos.z
		}).name

		local nodedef = minetest.registered_nodes[name]

		if name ~= "ignore" and nodedef
		and not ((nodedef.sunlight_propagates or nodedef.paramtype == "light")
		and nodedef.liquidtype == "none") then

			minetest.swap_node(pos, {name = "default:dirt"})
		end
	end
})

-- If Baked Clay mod not active, make Red, Orange and Grey nodes
if not minetest.get_modpath("bakedclay") then

	minetest.register_node(":bakedclay:red", {
		description = "Red Baked Clay",
		tiles = {"baked_clay_red.png"},
		groups = {cracky = 3},
		is_ground_content = false,
		sounds = default.node_sound_stone_defaults(),
	})

	minetest.register_node(":bakedclay:orange", {
		description = "Orange Baked Clay",
		tiles = {"baked_clay_orange.png"},
		groups = {cracky = 3},
		is_ground_content = false,
		sounds = default.node_sound_stone_defaults(),
	})

	minetest.register_node(":bakedclay:grey", {
		description = "Grey Baked Clay",
		tiles = {"baked_clay_grey.png"},
		groups = {cracky = 3},
		is_ground_content = false,
		sounds = default.node_sound_stone_defaults(),
	})

end