Fix: temporary remove nyan cat, remove wisps and temporary remove skyrealms (not finished)

mods/.skyrealms/config.lua

@@ -0,0 +1,54 @@
+local CONFIG_FILE_PREFIX = "caverealms."
+
+caverealms.config = {}
+
+-- This function based on kaeza/minetest-irc/config.lua and used under the
+-- terms of BSD 2-clause license.
+local function setting(stype, name, default)
+	local value
+	if stype == "bool" then
+		value = minetest.settings:get_bool(CONFIG_FILE_PREFIX..name)
+	elseif stype == "string" then
+		value = minetest.settings:get(CONFIG_FILE_PREFIX..name)
+	elseif stype == "number" then
+		value = tonumber(minetest.settings:get(CONFIG_FILE_PREFIX..name))
+	end
+	if value == nil then
+		value = default
+	end
+	caverealms.config[name] = value
+end
+
+--generation settings
+setting("number", "ymin", -15100) --bottom realm limit
+setting("number", "ymax", -4096) --top realm limit
+setting("number", "tcave", 0.75) --cave threshold
+
+--decoration chances
+setting("number", "stagcha", 0.003) --chance of stalagmites 0.003
+setting("number", "stalcha", 0.003) --chance of stalactites 0.003
+
+setting("number", "h_lag", 15) --max height for stalagmites
+setting("number", "h_lac", 20) --...stalactites
+setting("number", "crystal", 0.005) --chance of glow crystal formations (0.0004)
+setting("number", "salt_crystal", 0.005) --chance of glow crystal formations
+setting("number", "h_cry", 9) --max height of glow crystals
+setting("number", "h_clac", 13) --max height of glow crystal stalactites
+
+setting("number", "gemcha", 0.03) --chance of small glow gems
+setting("number", "mushcha", 0.04) --chance of mushrooms
+setting("number", "myccha", 0.03) --chance of mycena mushrooms
+setting("number", "wormcha", 0.02) --chance of glow worms
+setting("number", "giantcha", 0.0015) --chance of giant mushrooms
+setting("number", "icicha", 0.035) --chance of icicles
+setting("number", "flacha", 0.04) --chance of constant flames
+
+--realm limits for Dungeon Masters' Lair
+setting("number", "dm_top", -13000) --upper limit
+setting("number", "dm_bot", -15100) --lower limit
+
+--should DMs spawn in DM Lair?
+setting("bool", "dm_spawn", true) 
+
+--Deep cave settings
+setting("number", "deep_cave", -7000) -- upper limit