diff --git a/definitions.py b/definitions.py
new file mode 100644
index 0000000..c9bd8ca
--- /dev/null
+++ b/definitions.py
@@ -0,0 +1,33 @@
+aliases = {
+    "user_name" : "4a",
+    "user_id" : "0a",
+    "level_name" : "1a",
+    "user_icon" : "4b",
+    "slide" : "1b",
+    "charge" : "1d",
+    "double_damage" : "1ba",
+    "proto_strike" : "1ca",
+    "double_jump" : "1bb",
+    "charge_type" : "1d",
+    "default_bg_color" : "1e",
+    "boss_icon" : "1f",
+    "boss_weak_1_active" : "1ga",
+    "boss_weak_1" : "1g",
+    "boss_weak_2_active" : "1ha",
+    "boss_weak_2" : "1h",
+    "boss_immunity_active" : "1i",
+    "boss_immunity" : "1j",
+    "weapon_slot_0" : "1k0",
+    "weapon_slot_1" : "1k1",
+    "weapon_slot_2" : "1k2",
+    "weapon_slot_3" : "1k3",
+    "weapon_slot_4" : "1k4",
+    "weapon_slot_5" : "1k5",
+    "weapon_slot_6" : "1k6",
+    "weapon_slot_7" : "1k7",
+    "weapon_slot_8" : "1k8",
+    "weapon_slot_9" : "1k9",
+    "weapon_slot_10" : "1k10",
+    "weapon_slot_11" : "1k11",
+    "level_music" : "1m"
+}
diff --git a/mmlv_library.py b/mmlv_library.py
index 37d89d2..0fb5a5c 100644
--- a/mmlv_library.py
+++ b/mmlv_library.py
@@ -4,12 +4,15 @@ The goal is to create a library that reads a mmlv file, and then creates variabl
 and just give it for example, mm1iceman = [1, 2, 3] , the 1 meaning that it's active and the 2 and 3 it's position in space. In the future there will be more inputs for settings of objects.
 It could also work by calling a function, say place_tile(tilename, x, y) and then do that for every tile placement call. That would separate the placing of tiles from the placing of objects and more.
 """
-import configparser, os
-
+import configparser, os, definitions
+section = "Level"
 config = configparser.ConfigParser()
-filename = "mmlv.mmlv"
+filename = "sample.mmlv"
 config.read(filename)
+alias = definitions.aliases
 
+
+#done. converts from multiples of 16 to normal x and y values. for use in reading
 def conv_coordinates(x16, y16):
     if x16 < 1 or y16 < 1:
         x = x16 / 16
@@ -19,23 +22,67 @@ def conv_coordinates(x16, y16):
         y = 0
     return [x, y]
 
+#done. converts from normal x and y values to multiples of 16. for use in writing
 def conv_coordinates_x16(x, y):
     x16 = x * 16
     y16 = y * 16
     return [x16, y16]
 
+#done. writes the changes to file specified in global variable filename.
+def write_changes(filename=filename):
+    with open(filename, 'w') as configfile:
+        config.write(configfile, space_around_delimiters=False)
+
+#done. returns what is available in the file. without values.
+def get_options():
+    options = config.options(section)
+    return options
+
+def get_items():
+    items = config.items(section)
+    return items
+
+#done.
+def set_user(username):
+    if config.has_option(section, alias["user_name"]):
+        username = '"' + str(username) + '"'
+        config.set(section, alias["user_name"],username.lower())
+#done
+def get_user():
+    if config.has_option(section, alias["user_name"]):
+        current_username = config.get(section, alias["user_name"])
+    return current_username
+
+
+def set_tile(tilename, x , y, tile=0):
+    by16 = conv_coordinates_x16(x, y)
+    x16 = str(by16[0])
+    y16 = str(by16[1])
+    for letter in "kjiea":
+        #tile = letter + x16 + "," + y16
+        #print(type(tile))
+        config.set(section,letter + x16 + "," + y16, "0")
+
+
 """
-def set_tile
 def read_tile
 def set_name
 def set_setting
 def set_background
 def set_active
 """
-
-def get_options():
-    filename("mmlv.mmlv")
-    options = config.options("Level")
-    return options
+#def set_ver(gamever) < this may support mega maker's api to get current version.'
+"""
+_|_ _  __|_o._  _   _ .__    ._  _| _
+ |_(/__> |_|| |(_| (_||(_)|_|| |(_|_>
+                _|  _|
+"""
 
 print(get_options())
+print(get_user())
+#set_user("Game FEverOnline")
+#write_changes()
+print(get_user())
+set_tile("test",2,2)
+write_changes()
+
diff --git a/sample.mmlv b/sample.mmlv
new file mode 100644
index 0000000..851ad8e
--- /dev/null
+++ b/sample.mmlv
@@ -0,0 +1,50 @@
+[Level]
+k16,320="106.000"
+j16,320="71.000"
+i16,320="1.000"
+e16,320="3.000"
+a16,320="1.000"
+2b0,4256="0.000"
+2b0,4032="0.000"
+2b0,3808="0.000"
+2b0,3584="0.000"
+2b0,3360="0.000"
+2b0,3136="0.000"
+2b0,2912="0.000"
+2b0,2688="0.000"
+2b0,2464="0.000"
+2b0,2240="0.000"
+2b0,2016="0.000"
+2b0,1792="0.000"
+2b0,1568="0.000"
+2b0,1344="0.000"
+2b0,1120="0.000"
+2b0,896="0.000"
+2b0,672="0.000"
+2b0,448="0.000"
+2b0,224="0.000"
+2a0,224="1.000"
+2b0,0="0.000"
+1s="352.000"
+1r="288.000"
+1q="48.000"
+1p="0.000"
+1m="9.000"
+1l="6.000"
+1k0="0.000"
+1bc="0.000"
+1f="-1.000"
+1e="29.000"
+1d="6.000"
+1cc="1.000"
+1cb="1.000"
+1bb="0.000"
+1ca="0.000"
+1ba="0.000"
+1c="1.000"
+1b="1.000"
+4b="75.000"
+4a="game fever online yt"
+1a="sample"
+0v="1.8.4.1"
+0a="386743.000"