Add some documentation to the cameltris.piece module

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/cameltris/piece.py b/cameltris/piece.py
index 2f3e7ce..1bbe2c4 100644
--- a/cameltris/piece.py
+++ b/cameltris/piece.py
@@ -1,3 +1,5 @@
+""" Module that defines all types of pieces """
+
 import pygame
 
 
@@ -15,13 +17,17 @@ cyan = (30, 164, 150)
 
 
 class Piece:
+    """ A piece class that provides default methods for performing rotations """
     def __init__(self):
+        """ Initialize a piece """
         self.square = square_template.copy()
 
     def rotate_clockwise(self):
+        """ Rotate the piece clockwise """
         self.elements = list(zip(*self.elements[::-1]))
 
     def rotate_counter_clockwise(self):
+        """ Rotate the piece counter-clockwise """
         self.rotate_clockwise()
         self.rotate_clockwise()
         self.rotate_clockwise()