From f054eb1ce60a653db9dc9a2bbe6cf8d8a8be619b Mon Sep 17 00:00:00 2001
From: kay27 <kay27@bk.ru>
Date: Mon, 10 May 2021 02:47:56 +0400
Subject: [PATCH] [mcl_biomes] Fix chorus random function, prevent chorus
 growth at return portal position

---
 mods/MAPGEN/mcl_biomes/init.lua | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index cf9ccfb9e9..3655be7ebe 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -3974,14 +3974,18 @@ if mg_name ~= "singlenode" then
 		mcl_mapgen_core.register_generator("chorus_grow", nil, function(minp, maxp, blockseed)
 			local gennotify = minetest.get_mapgen_object("gennotify")
 			--local poslist = {}
+			local pr = PseudoRandom(blockseed + 14)
 			for _, pos in ipairs(gennotify["decoration#"..deco_id_chorus_plant] or {}) do
-				local realpos = { x = pos.x, y = pos.y + 1, z = pos.z }
-				local node = minetest.get_node(realpos)
-				if node and node.name == "mcl_end:chorus_flower" then
-					mcl_end.grow_chorus_plant(realpos, node, PseudoRandom(blockseed + 14))
+				local x, y, z = pos.x, pos.y, pos.z
+				if x < -2 or x > 2 or z < -2 or z > 2 then
+					local realpos = { x = x, y = y + 1, z = z }
+					local node = minetest.get_node(realpos)
+					if node and node.name == "mcl_end:chorus_flower" then
+						mcl_end.grow_chorus_plant(realpos, node, pr)
+					end
 				end
 			end
-		end, 999999999)
+		end)
 	end
 
 end