Added the 'infested' status effect and potions

mods/ENTITIES/mcl_mobs/physics.lua

@@ -412,7 +412,6 @@ end
 
 -- check if mob is dead or only hurt
 function mob_class:check_for_death(cause, cmi_cause)
-
 	if self.state == "die" then
 		return true
 	end
@@ -425,6 +424,8 @@ function mob_class:check_for_death(cause, cmi_cause)
 	local damaged = self.health < self.old_health
 	self.old_health = self.health
 
+	mcl_potions.check_infested_on_damage(self.object)
+
 	-- still got some health?
 	if self.health > 0 then
 

mods/ITEMS/mcl_potions/functions.lua

@@ -1117,6 +1117,39 @@ end)
 -- update when hitting mob implemented in mcl_mobs/combat.lua
 
 
+mcl_potions.register_effect({
+	name = "infested",
+	description = S("Infested"),
+	res_condition = function(obj)
+		-- apply to players and non-silverfish mobs
+		if obj:is_player() then return false end
+		local entity = obj:get_luaentity()
+		minetest.debug(entity, entity.is_mob, entity.name, entity and entity.is_mob and entity.name ~= "mobs_mc:silverfish")
+		if entity and entity.is_mob and entity.name ~= "mobs_mc:silverfish" then return false end
+		return true
+	end,
+	get_tt = function(factor)
+		return S("Causes 1-2 silverfish to spawn with a 10% chance when damaged")
+	end,
+	particle_color = "#472331",
+	uses_factor = false,
+})
+
+function mcl_potions.check_infested_on_damage(obj)
+	-- check for infested status effect
+	minetest.debug(mcl_potions.get_effect(obj, "infested"))
+	if mcl_potions.get_effect(obj, "infested") and math.random(1, 10) == 1 then
+		-- 50-50 for 1 or 2 silverfish
+		minetest.add_entity(obj:get_pos(), "mobs_mc:silverfish")
+		if math.random(1, 2) == 1 then
+			minetest.add_entity(obj:get_pos(), "mobs_mc:silverfish")
+		end
+	end
+end
+
+mcl_damage.register_on_damage(function (obj, damage, reason)
+	mcl_potions.check_infested_on_damage(obj)
+end)
 
 -- ██╗░░░██╗██████╗░██████╗░░█████╗░████████╗███████╗
 -- ██║░░░██║██╔══██╗██╔══██╗██╔══██╗╚══██╔══╝██╔════╝

mods/ITEMS/mcl_potions/init.lua

@@ -398,6 +398,7 @@ local awkward_table = {
 	["mcl_mobitems:spider_eye"] = "mcl_potions:poison",
 	["mcl_flowers:wither_rose"] = "mcl_potions:withering",
 	["mcl_mobitems:rabbit_foot"] = "mcl_potions:leaping",
+	["mcl_core:stone"] = "mcl_potions:infestation",
 
 	["mcl_flowers:fourleaf_clover"] = "mcl_potions:luck",
 	["mcl_farming:potato_item_poison"] = "mcl_potions:nausea",

mods/ITEMS/mcl_potions/potions.lua

@@ -798,6 +798,17 @@ mcl_potions.register_potion({
 })
 
 
+mcl_potions.register_potion({
+	name = "infestation",
+	desc_suffix = S("of Infestation"),
+	_tt = nil,
+	_longdesc = S("Causes 1-2 silverfish to spawn with a 10% chance when damaged"),
+	color = "#292929",
+	_effect_list = {
+		infested = {},
+	},
+	has_arrow = true,
+})
 
 
 -- COMPAT CODE