def get_shape():
    print "Which do you want to calculate?"
    print "1    Area of Circle"
    print "2    Area of Trapezoid"
    print "3    Area of Triangle"
    print "4    Area of Rectangle"
    print "5    Surface Area of Cone"
    print "6    Surface Area of Cylinder"
    print "7    Surface Area of Pyramaid"
    print "8    Surface Area of Sphere"
    print "9    Volume of Cone"
    print "10   Volume of Cylinder"
    print "11   Volume of a Rectangular Prism"
    print "12   Volume of Pyramaid"
    print "13   Volume of Sphere"
    shape = int(raw_input("Choose the shape: "))
    return shape

def get_choice():
    print "Select what you want to do"
    print "1    Calculate Area & Volume"
    print "2    Basic Calculator"
    print "3    Exit"
    print "4    Credits"
    choice = int(raw_input())
    return choice

def get_selection():
    print "Select what you want to do."
    print "1 Calculate Area & Volume"
    print "2 Credits"
    print "3 Exit"
    selection = int(raw_input("Select what you want to do: "))
    return selection
  
def main():
    print "Welcome to Volume. Area. Conversion. (VAC)"
    print "VAC is a free mathmatical program that calculates volume, area, surface area,converts lengths, and temperatures."
    print "VAC was created by Rodrigue Achu"
    choice = get_choice()
    if choice ==1:
        selection = get_selection()
        if selection ==1:
            shape = get_shape()
            if shape ==1:#Area of Circle
                radius = input("Enter the radius: ")
                area = 3.14*(radius**2)
                print "The area is", area
                main()
            elif shape ==2:#Area of Trapezoid
                height = input ("Enter the height: ")
                baseone = input ("Enter the first base: ")
                basetwo = input ("Enter the second base: ")
                area = (.5*height)*(baseone+basetwo)
                print "The area is", area
                main()
            elif shape ==3: #Area of Triangle
                base = input("Enter the base: ")
                height = input ("Enter the height: ")
                area = base*height*.5
                print "The area is", area
                main()
            elif shape ==4:#Area of Rectangle
                width = input ("Enter the width: ")
                height = input ("Enter the height: ")
                area = width*height
                print "The area is", area
                main()
            elif shape ==5:#Surface Area of Cone
                radius = input ("Enter the radius: ")
                length = input ("Enter the length: ")
                pi = 22.0/7.0
                surfacearea = (pi*radius*length)+(pi*radius**2)
                print "The surface area is", surfacearea
                main()
            elif shape ==6:#Surface Area of Cylinder
                radius = input ("Enter the radius: ")
                height = input ("Enter the height: ")
                pi = 22.0/7.0
                base = pi*radius*radius
                lateralarea = 2*pi*radius*height
                surfacearea = lateralarea + (base*2)
                print "The surface area is", surfacearea
                main()
            elif shape ==7:#Surface Area of Pyramaid
                base = input ("Enter one side of the base: ")
                height = input ("Enter the height: ")
                sidelength = input ("Enter the side length: ")
                surfacearea = (base*2*sidelength)+ (base**2)
                print "The surface area is", surfacearea
            elif shape ==8:#Surface Area of Sphere
                radius = input("Enter the radius: ")
                pi = 22.0/7.0
                surfacearea = (4*pi)*(radius**2)
                print "The surface area is", surfacearea
                main()
            elif shape ==9:#Volume of Cone
                radius = input("Enter the radius: ")
                height = input("Enter the height: ")
                pi = 22.0/7.0
                volume = (1/3)*pi*radius**2*height
                print "The volume is", volume
                main()
            elif shape ==10:#Volume of Cylinder
                radius = input("Enter the radius: ")
                height = input("Enter the height: ")
                pi = 22.0/7.0
                volume = height*pi*(radius**2)
                print "The volume is", volume
                main()
            elif shape ==11:#Volume of Rectangular Prism
                length = input("Enter the length: ")
                width = input("Enter the width: ")
                height = input("Enter the height: ")
                volume = length*width*height
                print"The volume is", volume
                main()
            elif shape ==12:#Volume of Pyramaid
                height = input("Please enter the height: ")
                base = input("Please enter one side of the base: ")
                volume = (1/3)*(base**2)*(height)
                main()
            elif shape ==13:#Volume of Sphere
                radius = input("Please enter the radius: ")
                pi = 22.0/7.0
                volume = (4/3)*(pi)*(radius**3)
                print "The volume is", volume
                main()
        else:  # selection ==2
            print "VAC was made by RFA with help from Kdoiron, and several other people"
            main()
    if choice ==2:   # choice ==2
        def get_menu():
            print "Welcome to VAC's basic calculator"
            print "Enter the equation you wish to solve"
            print "Ex: 5+5, 5*5, 5/5, etc."
            print "Please note that to raise a power use **, for ex: 5**2 = 5*5 = 5^2"
            equation = input("Enter the equation you wish to solve: ")
            solution = equation*1
            print "the answer is", solution
            return solutioun
        get_menu()
    if choice ==3:    # choice == 3
        x = 20
        while x>= 1:
            print "VAC is now closing"
            x = x-1

    if choice ==4:
        print "VAC was made by RFA with help from Kdoiron, and several other people"
        main()
                          
main()