clean up code

BlankProjectTemplate/src/Snake_2.o_Demo.py

-## Author: Usman Irfan, Andy Hameed
-# This module will be used to control snake body movements and gameplay
+## @file Snake_2.o.py
+#  @author Andy Hameed, Usman Irfan
+#  @brief implements gameplay and connects the different components of the game
+#  @date 11/09/2018
 
 import pygame
 from random import randint
 
+#initializing PyGame and setting game window dimensions
 pygame.init()
-
-#setting width and size of window to screenSize
 screenSize = 500
 win = pygame.display.set_mode((screenSize,screenSize))
-
-pygame.display.set_caption("My Game")
+pygame.display.set_caption("Snake 2.o")
 
 #Define color constants
 white = (255,255,255)
@@ -18,27 +18,26 @@ red = (255,0,0)
 blue = (0,0,255)
 black = (0,0,0)
 
-#width1, size1 correspond to constant width and size for the food block
-#width and size change over time as the snake consumes food
-
-width, width1 = 20,20 # can replace with size - one number
-size, size1 = 20,20
-size = 20 # One size for all block created for snake
 
+# One size for all blocks created for snake
+size = 20 
 
+#velocity and score
 vel = 10
 score = 0
-x = randint(0,screenSize - size)
-y = randint(0, screenSize - size)
+
+#initial x and y coordinates of the snake
+x_init = randint(0,screenSize - size)
+y_init = randint(0, screenSize - size)
 
 speed = 40
+
 # 0 gives (- direction)
 # 1 gives (+ direction)
 direction = 0
 # 0 - x-axis , 1 - y-axis
 axis = 0
 
-
 location = []
 
 food_x = randint(0,screenSize - size)
@@ -96,8 +95,8 @@ while run:
     #consumption of food block
     if( abs(x - food_x) < 15 and abs(y - food_y) < 15):
         score += 1
-        food_x = randint(0,screenSize - size1)
-        food_y = randint(0,screenSize - size1)
+        food_x = randint(0,screenSize - size)
+        food_y = randint(0,screenSize - size)
         location = [food_x, food_y]
         
         ## --------------------------DELETE --------------------------
@@ -106,15 +105,16 @@ while run:
             size += 20
         else:
             size += 20
-            
-        print('score = ', score)
         ##---------------------------DELETE----------------------------
+         
+        print('score = ', score)
+        
         
         
     win.fill(white)
 
     #Draw food item
-    pygame.draw.rect(win,blue, (location[0], location[1], size1, size1))
+    pygame.draw.rect(win,blue, (location[0], location[1], size, size))
 
     #Draw snake
     pygame.draw.rect(win, red , (x,y,size, size))