Added missing portal file script

portal.lua

@@ -0,0 +1,53 @@
+--[[
+
+  Code for the Aether portal, created wath the help of the 
+  portal_examples.lua file from the nether mod.
+
+  --
+
+  Copyright (C) 2020 Treer
+  Permission to use, copy, modify, and/or distribute this software for
+  any purpose with or without fee is hereby granted, provided that the
+  above copyright notice and this permission notice appear in all copies.
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+  WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR
+  BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+  OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+  SOFTWARE.
+
+]]--
+
+local S = nether.get_translator
+
+nether.register_portal("aether_portal", {
+	frame_node_name     = "nether:glowstone",
+	wormhole_node_color = 2, -- 2 is blue
+	particle_texture    = {
+		name      = "nether_particle_anim1.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 7,
+			aspect_h = 7,
+			length = 1,
+		},
+		scale = 1.5
+	},
+	title = S("Floatlands Portal"),
+	book_of_portals_pagetext = S([[Requiring 14 blocks of glowstone, and constructed like a nether portal.
+This portal seemed to bring us to some kind of heavenly paradise.@1]],
+	floatlands_flavortext),
+
+	is_within_realm = function(pos) -- return true if pos is inside the Aether
+		-- TODO: Get these values from mod-wide constants.
+		return (pos.y > 250 and pos.y < 1000)
+	end,
+
+	find_realm_anchorPos = function(surface_anchorPos, player_name)
+		-- This function isn't needed, since this type of portal always goes to the surface
+		minetest.log("error" , "find_realm_anchorPos called for aether portal")
+		return {x=0, y=0, z=0}
+	end,
+})