Move mapgen code out of init.lua

nether/common.lua

@@ -0,0 +1,153 @@
+
+dofile(nether.path .. "/settings.lua")
+
+-- vars
+nether.v = {}
+local v = nether.v
+
+--== EDITABLE OPTIONS ==--
+
+-- Depth of the nether
+v.nether_middle = -20000
+
+-- forest bottom perlin multiplication
+v.f_bottom_scale = 4
+
+-- forest bottom height
+v.f_h_min = v.nether_middle+10
+
+-- forest top height
+v.f_h_max = v.f_h_min+250
+
+-- Frequency of trees in the nether forest (higher is less frequent)
+v.tree_rarity = 200
+
+-- Frequency of glowflowers in the nether forest (higher is less frequent)
+v.glowflower_rarity = 120
+
+-- Frequency of nether grass in the nether forest (higher is less frequent)
+v.grass_rarity = 2
+
+-- Frequency of nether mushrooms in the nether forest (higher is less frequent)
+v.mushroom_rarity = 80
+
+v.abm_tree_interval = 864
+v.abm_tree_chance = 100
+
+-- height of the nether generation's end
+v.nether_start = v.f_h_max+100
+
+-- Height of the nether (bottom of the nether is nether_middle - NETHER_HEIGHT)
+v.NETHER_HEIGHT = 30
+
+-- bottom height of the nether.
+v.nether_bottom = v.nether_middle - v.NETHER_HEIGHT - 100
+
+-- Maximum amount of randomness in the map generation
+v.NETHER_RANDOM = 2
+
+-- Frequency of Glowstone on the "roof" of the Nether (higher is less frequent)
+v.GLOWSTONE_FREQ_ROOF = 500
+
+-- Frequency of lava (higher is less frequent)
+v.LAVA_FREQ = 100
+
+v.nether_structure_freq = 350
+v.NETHER_SHROOM_FREQ = 100
+
+-- Maximum height of lava
+--v.LAVA_HEIGHT = 2
+-- Frequency of Glowstone on lava (higher is less frequent)
+--v.GLOWSTONE_FREQ_LAVA = 2
+-- Height of nether structures
+--v.NETHER_TREESIZE = 2
+-- Frequency of apples in a nether structure (higher is less frequent)
+--v.NETHER_APPLE_FREQ = 5
+-- Frequency of healing apples in a nether structure (higher is less frequent)
+--v.NETHER_HEAL_APPLE_FREQ = 10
+-- Start position for the Throne of Hades (y is relative to the bottom of the
+-- nether)
+--v.HADES_THRONE_STARTPOS = {x=0, y=1, z=0}
+-- Spawn pos for when the nether hasn't been loaded yet (i.e. no portal in the
+-- nether) (y is relative to the bottom of the nether)
+--v.NETHER_SPAWNPOS = {x=0, y=5, z=0}
+-- Structure of the nether portal (all is relative to the nether portal creator
+-- block)
+
+--== END OF EDITABLE OPTIONS ==--
+
+-- Generated variables
+v.NETHER_BOTTOM = (v.nether_middle - v.NETHER_HEIGHT)
+v.nether_buildings = v.NETHER_BOTTOM+12
+
+function nether.query_contents()
+	local c = {
+		ignore = minetest.get_content_id("ignore"),
+		air = minetest.get_content_id("air"),
+		lava = minetest.get_content_id("default:lava_source"),
+		gravel = minetest.get_content_id("default:gravel"),
+		coal = minetest.get_content_id("default:stone_with_coal"),
+		diamond = minetest.get_content_id("default:stone_with_diamond"),
+		mese = minetest.get_content_id("default:mese"),
+
+		--https://github.com/Zeg9/minetest-glow
+		glowstone = minetest.get_content_id("glow:stone"),
+
+		nether_shroom = minetest.get_content_id("riesenpilz:nether_shroom"),
+
+		netherrack = minetest.get_content_id("nether:netherrack"),
+		netherrack_tiled = minetest.get_content_id("nether:netherrack_tiled"),
+		netherrack_black = minetest.get_content_id("nether:netherrack_black"),
+		netherrack_blue = minetest.get_content_id("nether:netherrack_blue"),
+		netherrack_brick = minetest.get_content_id("nether:netherrack_brick"),
+		white = minetest.get_content_id("nether:white"),
+
+		nether_vine = minetest.get_content_id("nether:vine"),
+		blood = minetest.get_content_id("nether:blood"),
+		blood_top = minetest.get_content_id("nether:blood_top"),
+		blood_stem = minetest.get_content_id("nether:blood_stem"),
+		nether_apple = minetest.get_content_id("nether:apple"),
+
+		nether_tree = minetest.get_content_id("nether:tree"),
+		nether_tree_corner = minetest.get_content_id("nether:tree_corner"),
+		nether_leaves = minetest.get_content_id("nether:leaves"),
+		nether_grass = {
+			minetest.get_content_id("nether:grass_small"),
+			minetest.get_content_id("nether:grass_middle"),
+			minetest.get_content_id("nether:grass_big")
+		},
+		glowflower = minetest.get_content_id("nether:glowflower"),
+		nether_dirt = minetest.get_content_id("nether:dirt"),
+		nether_dirt_top = minetest.get_content_id("nether:dirt_top"),
+		nether_dirt_bottom = minetest.get_content_id("nether:dirt_bottom"),
+	}
+	local trn = {c.nether_tree, c.nether_tree_corner, c.nether_leaves,
+		c.nether_fruit}
+	local nether_tree_nodes = {}
+	for i = 1,#trn do
+		nether_tree_nodes[trn[i]] = true
+	end
+
+	return c, nether_tree_nodes
+end
+
+if nether.log_level >= 1 then
+	function nether:inform(msg, spam, t)
+		if spam <= self.log_level then
+			local info
+			if t then
+				info = "[nether] " .. msg .. (" after ca. %.3g s"):format(
+					(minetest.get_us_time() - t) / 1000000)
+			else
+				info = "[nether] " .. msg
+			end
+			print(info)
+			if self.log_to_chat then
+				minetest.chat_send_all(info)
+			end
+		end
+	end
+else
+	function nether.inform()
+	end
+end