Crafting and minor tweaks

Added craft recipes for Mycena Essence, Glow Mese Crystals, and a
reverse recipe for them. Fixed selection box for mycena mushrooms,
adjusted crystal variation rates.

crafting.lua

+--caverealms crafting.lua
+
+--CRAFT ITEMS--
+
+--mycena essence
+minetest.register_craftitem("caverealms:mycena_essence", {
+	description = "Mycena Essence",
+	inventory_image = "caverealms_mycena_essence.png",
+})
+
+--CRAFT RECIPES--
+
+--mycena essence
+minetest.register_craft({
+	output = "caverealms:mycena_essence",
+	type = "shapeless",
+	recipe = {"caverealms:mycena"}
+})
+
+
+--glow mese block
+minetest.register_craft({
+	output = "caverealms:glow_mese",
+	recipe = {
+		{"default:mese_crystal_fragment","default:mese_crystal_fragment","default:mese_crystal_fragment"},
+		{"default:mese_crystal_fragment","caverealms:mycena_essence","default:mese_crystal_fragment"},
+		{"default:mese_crystal_fragment","default:mese_crystal_fragment","default:mese_crystal_fragment"}
+	}
+})
+
+--reverse craft for glow mese
+minetest.register_craft({
+	output = "default:mese_crystal_fragment 8",
+	type = "shapeless",
+	recipe = {"caverealms:glow_mese"}
+})
\ No newline at end of file

init.lua

--- caverealms 0.2.6 by HeroOfTheWinds
+-- caverealms 0.2.7 by HeroOfTheWinds
 -- For latest stable Minetest and back to 0.4.8
 -- Depends default
 -- License: code WTFPL
@@ -8,6 +8,7 @@ caverealms = {}
 local modpath = minetest.get_modpath(minetest.get_current_modname())
 
 dofile(modpath.."/config.lua")
+dofile(modpath.."/crafting.lua")
 
 -- Parameters (see also config.lua)
 
@@ -267,7 +268,7 @@ minetest.register_node("caverealms:mycena", {
 	visual_scale = 1.0,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -0.5, 0.5},
+		fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
 	},
 })
 
@@ -378,7 +379,7 @@ function caverealms:crystal_stalagmite(x,y,z, area, data, biome)
 	
 	--for randomness
 	local mode = 1
-	if math.random(20) == 1 then
+	if math.random(15) == 1 then
 		mode = 2
 	end
 	if biome == 3 then
@@ -482,7 +483,7 @@ function caverealms:crystal_stalactite(x,y,z, area, data, biome)
 	
 	--for randomness
 	local mode = 1
-	if math.random(20) == 1 then
+	if math.random(15) == 1 then
 		mode = 2
 	end
 	if biome == 3 then