added alien crystals

alien_crystal.lua

@@ -0,0 +1,44 @@
+minetest.register_node("titan_moon:alien_crystal", {
+	description = "Titan Alien Crystal",
+	--tiles = {{
+	--	name = "mapgen_crystal_anim.png",
+	--	animation = {type = "vertical_frames", aspect_w = 16, aspect_h = 16, length = 1.00},
+	--}},
+    tiles = {"titan_moon_alien_crystal.png"},
+	inventory_image = "titan_moon_alien_crystal_item.png",
+    --wield_image = "titan_moon_alien_crystal_item.png",
+	use_texture_alpha = true,
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	--light_source = 7,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.25, -0.5, -0.25, 0.25, 0.875, 0.25}, -- NodeBox1
+			{-0.1875, -0.5, -0.1875, 0.1875, 1.25, 0.1875}, -- NodeBox2
+			{-0.625, -0.5, -0.1875, -0.3125, 0.5, 0.125}, -- NodeBox3
+			{0.0625, -0.5, -0.625, 0.375, 0.3125, -0.3125}, -- NodeBox5
+			{0.3125, -0.5, 0.3125, 0.5625, 0.5, 0.5625}, -- NodeBox7
+			{-0.5625, -0.5, -0.125, -0.375, 0.4375, 0.0625}, -- NodeBox8
+			{0.125, -0.5, -0.5625, 0.3125, 0.25, -0.375}, -- NodeBox9
+			{0.375, -0.5, 0.375, 0.5, 0.4375, 0.5}, -- NodeBox10
+		}
+	},
+	groups = {cracky=2, dig_immediate=3, flammable=1},
+	sounds = default.node_sound_glass_defaults()
+})
+
+minetest.register_abm({
+    nodenames = {"titan_moon:hydrocarbon_sand"},
+    neighbors = {"titan_moon:liquid_hydrocarbon_source"},
+    interval = 2.0, -- Run every 2 seconds
+    chance = 2, -- Select every 1 in 2 nodes
+    action = function(pos, node, active_object_count, active_object_count_wider)
+        local pos = {x = pos.x, y = pos.y + 1, z = pos.z}
+        if pos.y == 2 then --minetest.get_node(pos) == "air" then
+            minetest.set_node(pos, {name = "titan_moon:alien_crystal"})
+        end
+    end
+})
+