From d9e78e8ad902129429e3dc6c74084a4841dd7863 Mon Sep 17 00:00:00 2001
From: Brandon <bzoss@mit.edu>
Date: Thu, 18 Jun 2020 17:59:36 -0400
Subject: [PATCH] Add water breathing.

---
 mods/ITEMS/mcl_potions/functions.lua | 10 +++++++
 mods/ITEMS/mcl_potions/init.lua      |  6 ++--
 mods/ITEMS/mcl_potions/potions.lua   | 43 ++++++++++++++++++++++++++++
 mods/ITEMS/mcl_potions/splash.lua    | 10 ++++++-
 4 files changed, 65 insertions(+), 4 deletions(-)

diff --git a/mods/ITEMS/mcl_potions/functions.lua b/mods/ITEMS/mcl_potions/functions.lua
index 56833faf7..d66e49d58 100644
--- a/mods/ITEMS/mcl_potions/functions.lua
+++ b/mods/ITEMS/mcl_potions/functions.lua
@@ -81,3 +81,13 @@ function mcl_potions.invisiblility_func(player, duration)
 	mcl_potions.invisible(player, true)
 	minetest.after(duration, function() mcl_potions.invisible(player, false) end )
 end
+
+function mcl_potions.water_breathing_func(player, duration)
+	if minetest.is_player(player) then
+
+		for i=1,math.floor(duration) do
+			minetest.after(i, function() player:set_breath(10) end )
+		end
+	end
+
+end
diff --git a/mods/ITEMS/mcl_potions/init.lua b/mods/ITEMS/mcl_potions/init.lua
index 2e31316c6..46d4eb464 100644
--- a/mods/ITEMS/mcl_potions/init.lua
+++ b/mods/ITEMS/mcl_potions/init.lua
@@ -303,7 +303,7 @@ local awkward_table = {
 	["mcl_fishing:pufferfish_raw"] = "mcl_potions:water_breathing", --add craft
 	["mcl_mobitems:ghast_tear"] = "mcl_potions:regeneration", --add craft
 	["mcl_mobitems:spider_eye"] = "mcl_potions:poison", --add craft
-	["mcl_mobitems:rabbit_foot"] = "mcl_potions:leaping", --add craft
+	["mcl_mobitems:rabbit_foot"] = "mcl_potions:leaping",
 }
 
 local output_table = {
@@ -316,11 +316,11 @@ local output_table = {
 local enhancement_table = {}
 local extension_table = {}
 local potions = {"awkward", "mundane", "thick"}
-for i, potion in ipairs({"healing","harming","swiftness","leaping","poison","regeneration","invisibility","weakness"}) do
+for i, potion in ipairs({"healing","harming","swiftness","leaping","poison","regeneration","invisibility","weakness","water_breathing"}) do
 
 		table.insert(potions, potion)
 
-		if potion ~= "invisibility" and potion ~= "night_vision" and potion ~= "weakness" then
+		if potion ~= "invisibility" and potion ~= "night_vision" and potion ~= "weakness" and potion ~= "water_breathing" then
 			enhancement_table["mcl_potions:"..potion] = "mcl_potions:"..potion.."_2"
 			enhancement_table["mcl_potions:"..potion.."_splash"] = "mcl_potions:"..potion.."_2_splash"
 			table.insert(potions, potion.."_2")
diff --git a/mods/ITEMS/mcl_potions/potions.lua b/mods/ITEMS/mcl_potions/potions.lua
index bdae4326c..b39a18591 100644
--- a/mods/ITEMS/mcl_potions/potions.lua
+++ b/mods/ITEMS/mcl_potions/potions.lua
@@ -548,3 +548,46 @@ minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing)
 		print("Weakness Active")
 	end
 end)
+
+
+minetest.register_craftitem("mcl_potions:water_breathing", {
+	description = S("Water Breathing Potion"),
+	_doc_items_longdesc = brewhelp,
+	wield_image = potion_image("#0000AA"),
+	inventory_image = potion_image("#0000AA"),
+	groups = { brewitem = 1, food = 0 },
+	stack_max = 1,
+
+	on_place = function(itemstack, user, pointed_thing)
+		mcl_potions.water_breathing_func(user, 180)
+		mcl_potions._use_potion(itemstack)
+		return itemstack
+	end,
+
+	on_secondary_use = function(itemstack, user, pointed_thing)
+		mcl_potions.water_breathing_func(user, 180)
+		mcl_potions._use_potion(itemstack)
+		return itemstack
+	end
+})
+
+minetest.register_craftitem("mcl_potions:water_breathing_plus", {
+	description = S("Water Breathing Potion +"),
+	_doc_items_longdesc = brewhelp,
+	wield_image = potion_image("#0000CC"),
+	inventory_image = potion_image("#0000CC"),
+	groups = { brewitem = 1, food = 0 },
+	stack_max = 1,
+
+	on_place = function(itemstack, user, pointed_thing)
+		mcl_potions.water_breathing_func(user, 480)
+		mcl_potions._use_potion(itemstack)
+		return itemstack
+	end,
+
+	on_secondary_use = function(itemstack, user, pointed_thing)
+		mcl_potions.water_breathing_func(user, 480)
+		mcl_potions._use_potion(itemstack)
+		return itemstack
+	end
+})
diff --git a/mods/ITEMS/mcl_potions/splash.lua b/mods/ITEMS/mcl_potions/splash.lua
index 4543386f9..ce39e795e 100644
--- a/mods/ITEMS/mcl_potions/splash.lua
+++ b/mods/ITEMS/mcl_potions/splash.lua
@@ -171,7 +171,7 @@ register_splash("invisibility", "Splash Invisibility", "#B0B0B0", {
 })
 
 register_splash("invisibility_plus", "Splash Invisibility +", "#A0A0A0", {
-	potion_fun = function(player, redx) mcl_potions.invisiblility_func(player, 300*redx) end
+	potion_fun = function(player, redx) mcl_potions.invisiblility_func(player, 360*redx) end
 })
 
 register_splash("weakness", "Splash Weakness", "#6600AA", {
@@ -181,3 +181,11 @@ register_splash("weakness", "Splash Weakness", "#6600AA", {
 register_splash("weakness_plus", "Splash Weakness +", "#7700BB", {
 	potion_fun = function(player, redx) mcl_potions.weakness_func(player, 1.4, 180*redx) end
 })
+
+register_splash("water_breathing", "Splash Water Breathing", "#0000AA", {
+	potion_fun = function(player, redx) mcl_potions.water_breathing_func(player, 135*redx) end
+})
+
+register_splash("water_breathing_plus", "Splash Water Breathing +", "#0000CC", {
+	potion_fun = function(player, redx) mcl_potions.water_breathing_func(player, 360*redx) end
+})