From ec2d700c9529d650063c66a7f355f732aa43b778 Mon Sep 17 00:00:00 2001
From: Brandon <bzoss@mit.edu>
Date: Sat, 20 Jun 2020 10:16:00 -0400
Subject: [PATCH] Prevent compound regeneration

---
 mods/ITEMS/mcl_potions/functions.lua | 44 ++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/mods/ITEMS/mcl_potions/functions.lua b/mods/ITEMS/mcl_potions/functions.lua
index 9cdd3c2a66..cd1a8ace98 100644
--- a/mods/ITEMS/mcl_potions/functions.lua
+++ b/mods/ITEMS/mcl_potions/functions.lua
@@ -1,5 +1,8 @@
 local invisibility = {}
 local poisoned = {}
+local regenerating = {}
+local strong = {}
+local weak = {}
 
 -- reset player invisibility/poison if they go offline
 minetest.register_on_leaveplayer(function(player)
@@ -14,6 +17,18 @@ minetest.register_on_leaveplayer(function(player)
 		poisoned[name] = nil
 	end
 
+	if regenerating[name] then
+		regenerating[name] = nil
+	end
+
+	if strong[name] then
+		strong[name] = nil
+	end
+
+	if weak[name] then
+		weak[name] = nil
+	end 
+
 end)
 
 function mcl_potions.invisible(player, toggle)
@@ -39,6 +54,13 @@ function mcl_potions.poison(player, toggle)
 
 end
 
+function mcl_potions.regenerate(player, toggle)
+
+	if not player then return false end
+	regenerating[player:get_player_name()] = toggle
+
+end
+
 function mcl_potions._use_potion(item, obj, color)
 	local d = 0.1
 	local pos = obj:get_pos()
@@ -152,15 +174,19 @@ function mcl_potions.poison_func(player, factor, duration)
 end
 
 function mcl_potions.regeneration_func(player, factor, duration)
-	for i=1,math.floor(duration/factor) do
-		minetest.after(i*factor, function()
-						if player:get_hp() < 20 then
-							player:set_hp(player:get_hp() + 1)
-						end
-					end  )
-	end
-	for i=1,math.floor(duration) do
-		minetest.after(i, function() mcl_potions._add_spawner(player, "#A52BB2") end)
+	if not regenerating[player:get_player_name()] then
+		mcl_potions.regenerate(player, true)
+		for i=1,math.floor(duration/factor) do
+			minetest.after(i*factor, function()
+							if player:get_hp() < 20 then
+								player:set_hp(player:get_hp() + 1)
+							end
+						end  )
+		end
+		for i=1,math.floor(duration) do
+			minetest.after(i, function() mcl_potions._add_spawner(player, "#A52BB2") end)
+		end
+		minetest.after(duration, function() mcl_potions.regenerate(player, false) end)
 	end
 end