added comments

1 files changed, 4 insertions, 0 deletions

diff --git a/api/rating.py b/api/rating.py
index e05645f..bc49fda 100644
--- a/api/rating.py
+++ b/api/rating.py
@@ -14,13 +14,17 @@ def get_all_games(user_id):
             "where (player_1_id = ? or player_2_id = ?) " + \
             "and status = \"finished\" or status = \"resign\"", [user_id, user_id]).fetchall()
 
+# simple rating function that doesn't use game analysis
 def get_rating(user_id):
     score = 400
     games = get_all_games(user_id)
+    # get all games for user_id and switch perspective in which user_id is player_2_id
     mapped_games = [game if game[0] == user_id else (game[1], game[0], outcome(game[2], False)) for game in games]
     counted_opponents = {}
     for game in mapped_games:
+        # calculate sum score against user (+1 for win, -1 for lose, 0 for draw game)
         counted_opponents |= {game[1]: (counted_opponents.get(game[1]) or 0) + { "w": 1, "l": -1, "d": 0 }[game[2]]}
     for opponent in counted_opponents:
+        # apply the cool curve to the sum score and add to the base score of 400
         score += rating_v1(counted_opponents.get(opponent))
     return int(score)