Use status effects for elixirs and cold demon slow.

init.lua

@@ -112,6 +112,29 @@ function fun_caves.register_status(def)
 	}
 end
 
+function fun_caves.set_status(player_name, status, time, param)
+	local player = minetest.get_player_by_name(player_name)
+	local def = fun_caves.registered_status[status]
+	if not (def and player) then
+		return
+	end
+
+	if not param then
+		param = {}
+	end
+
+	if time then
+		param.remove = minetest.get_gametime() + time
+	end
+
+	if player_name and status and fun_caves.db.status[player_name] then
+		fun_caves.db.status[player_name][status] = param
+		if def.start then
+			def.start(player)
+		end
+	end
+end
+
 
 --dofile(fun_caves.path .. "/recipe_list.lua")