#CS 171 by Shreedev Patel
#Section 068

import sys
global G = -1.622
global A = 50
global V = 0
global F = 150
global s = 0
print('Welcome to Lunar Lander Game.')
while True:
    try:
        y = input('Do uou want to play level 1? (yes/no) \n')
        y = str(y)
        if y == 'yes':
            print("")
            break
        if y == 'no':
                sys.exit()
def ask_fuel (current_fuel):
    while True:
        try:
            f= input('Enter units of fuel to use:\n')
            f= int(f)

            if (f<0) :
                print('Cannot use of negative fuel.')
            if current_fuel - f <= 0:
                print('Not enough fuel. Max fuel')
            else:
                break
        except ValueError:
    return f
def play_level(name,G,fuel):
    print('Landing on the',name)
    print('Gravity is' ,G,'m/s^2')
    print('Initial Altitude',A,'meters')
    print('Initial Velocity',V,'m/s')
    print('Burning a unit of fuel causes 0.10m/s')
    while A>0:
        fuel = ask_fuel(current_fuel)
        F = F-fuel
        V=V+G+T*fuel
        A=A+V
        s=s+1

    names=['Moon','Earth','Pluto','Neptune','Uranus','Saturn','Jupiter','Mars','Venus','Mercury','Sun']
    gravity=[-1.622,-9.81,-0.42,-14.07,-10.67,-11.08,-25.95,-3.77,-8.87,-3.59,-274.13]
    Fuel= [150,5000,1000,1000,1000,1000,1000,1000,1000,1000,50000]