# AreaCalculator_Comments.py 
#
# This program allows us to compute the area of
# a triangle, a circle, a rectangle, a square and an ellipse.
#
# Anne Lavergne
# June 2015 - Modified July 2017
#
# Demonstrating "Incremental Development"
# 1) We write a header comment block
# 2) We copy and paste the low-level algorithm into our empty program.
#    The steps of this algorithm become our comments.


# Print menu 
    # Print description of program
    # Print menu displaying selection of shapes
    
# Get options from user (+ validate input)
    # Print input instruction to user and read user input
    # Validate input
    
# Based on option selected by user, get appropriate input from user (+ validate input)
    # If "triangle" is selected, then ask for the base and height
    # If "circle" is selected, then ask for the radius
    # if "rectangle" is selected, then ask for the width and height
    # if "square" is selected, then ask for one side
    # if "ellipse" is selected, then ask for both radii
    # Validate input
    
# Compute desired area
    # If "triangle" is selected, then compute area = 0.5 ( base * height )
    # If "circle" is selected, then compute area = pi * radius squared
    # if "rectangle" is selected, then compute area = width * height
    # if "square" is selected, then compute area = side squared
    # if "ellipse" is selected, then compute area = pi * radius1 * radius2
    
# Display result
    # Print the shape, the input data and the area