From 3fefbf5fc4ba597247c99aa9de6263a3595cc6c9 Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Thu, 17 Aug 2017 19:59:43 +0200
Subject: [PATCH] Add realm barrier between End and Overworld void

---
 mods/CORE/mcl_init/init.lua          | 3 +++
 mods/ITEMS/mcl_core/nodes_misc.lua   | 2 ++
 mods/MAPGEN/mcl_mapgen_core/init.lua | 6 ++++++
 3 files changed, 11 insertions(+)

diff --git a/mods/CORE/mcl_init/init.lua b/mods/CORE/mcl_init/init.lua
index ebf106e192..091d9cb1c6 100644
--- a/mods/CORE/mcl_init/init.lua
+++ b/mods/CORE/mcl_init/init.lua
@@ -65,6 +65,9 @@ mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 31
 mcl_vars.mg_end_min = mcl_vars.mg_nether_max + 2000
 mcl_vars.mg_end_max_official = mcl_vars.mg_end_min + minecraft_height_limit
 mcl_vars.mg_end_max = mcl_vars.mg_overworld_min - 2000
+-- Realm barrier used to safely separate the End from the void below the Overworld
+mcl_vars.mg_realm_barrier_overworld_end_max = mcl_vars.mg_end_max
+mcl_vars.mg_realm_barrier_overworld_end_min = mcl_vars.mg_end_max - 11
 
 -- Set default stack sizes
 minetest.nodedef_default.stack_max = 64
diff --git a/mods/ITEMS/mcl_core/nodes_misc.lua b/mods/ITEMS/mcl_core/nodes_misc.lua
index 81274a49aa..3c1c51f3a5 100644
--- a/mods/ITEMS/mcl_core/nodes_misc.lua
+++ b/mods/ITEMS/mcl_core/nodes_misc.lua
@@ -153,6 +153,8 @@ minetest.register_node("mcl_core:realm_barrier", {
 	wield_image = "mcl_core_barrier.png^[colorize:#FF00FF:127^[transformFX",
 	tiles = { "blank.png" },
 	stack_max = 64,
+	-- To avoid players getting stuck forever between realms
+	damage_per_second = 8,
 	sunlight_propagates = true,
 	is_ground_content = false,
 	pointable = false,
diff --git a/mods/MAPGEN/mcl_mapgen_core/init.lua b/mods/MAPGEN/mcl_mapgen_core/init.lua
index 6e2dda7380..0b8999cf0c 100644
--- a/mods/MAPGEN/mcl_mapgen_core/init.lua
+++ b/mods/MAPGEN/mcl_mapgen_core/init.lua
@@ -1215,6 +1215,7 @@ minetest.register_on_generated(function(minp, maxp)
 		local c_bedrock = minetest.get_content_id("mcl_core:bedrock")
 		local c_void = minetest.get_content_id("mcl_core:void")
 		local c_lava = minetest.get_content_id("mcl_core:lava_source")
+		local c_realm_barrier = minetest.get_content_id("mcl_core:realm_barrier")
 		local c_nether_lava = minetest.get_content_id("mcl_nether:nether_lava_source")
 		local c_air = minetest.get_content_id("air")
 
@@ -1276,6 +1277,7 @@ minetest.register_on_generated(function(minp, maxp)
 					if setdata then
 						data[p_pos] = setdata
 						lvm_used = true
+					-- Big lava seas by replacing air below a certain height
 					elseif mcl_vars.mg_lava and data[p_pos] == c_air then
 						if y <= mcl_vars.mg_lava_overworld_max and y >= mcl_vars.mg_overworld_min then
 							data[p_pos] = c_lava
@@ -1284,6 +1286,10 @@ minetest.register_on_generated(function(minp, maxp)
 							data[p_pos] = c_nether_lava
 							lvm_used = true
 						end
+					-- Realm barrier between the Overworld void and the End
+					elseif y >= mcl_vars.mg_realm_barrier_overworld_end_min and y <= mcl_vars.mg_realm_barrier_overworld_end_max then
+						data[p_pos] = c_realm_barrier
+						lvm_used = true
 					end
 				end
 			end