Air Location | Python Fiddle

from random import randint
from math import sqrt
class AirLocation(object):
    def __init__(self, rows, x = None, y = None):
        self.rows=rows
        self.miles=0
        if x is None and y is None:
            x = randint(rows*-1,rows)
            y = randint(rows*-1,rows)
        self.x=x
        self.y=y
        self.chart = {}
        for var1 in reversed(range(rows*-1,rows+1)):
            dict1 = {}
            for var2 in reversed(range(rows*-1,rows+1)):
                dict1[var2] = 0
            self.chart[var1]=dict1
    
    def print_chart_airport(self, airport):
        print ("  "),
        for num in reversed(range(self.rows*(-1),self.rows + 1)):
            if num >= 0:
                print " "+(str(num)),
            else:
                print (str(num)),
        for num in reversed(range((self.rows)*(-1),(self.rows+1))):
            print
            if num >= 0:
                print " "+(str(num)),
            else:
                print (str(num)),
            for var in reversed(range((self.rows)*(-1),(self.rows+1))):
                if self.x == num and self.y == var:
                    print " P",
                elif airport.x == num and airport.y == var:
                    print " A",
                else:
                    print " " + str(self.chart[num][var]),
        print
        print
    
    def print_chart(self):
        print ("  "),
        for num in reversed(range(self.rows*(-1),self.rows + 1)):
            if num >= 0:
                print " "+(str(num)),
            else:
                print (str(num)),
        for num in reversed(range((self.rows)*(-1),(self.rows+1))):
            print
            if num >= 0:
                print " "+(str(num)),
            else:
                print (str(num)),
            for var in reversed(range((self.rows)*(-1),(self.rows+1))):
                if self.x == num and self.y == var:
                    print " P",
                else:
                    print " " + str(self.chart[num][var]),
        print
        print
    
    def fly(self, newX, newY):
        newX=self.x+newX
        newY=self.y+newY
        if newX>=self.rows*-1 and newX<=self.rows and newY>=self.rows*-1 and newY<=self.rows: 
            self.miles+= sqrt(float((self.x-newX)**2)+float((self.y-newY)**2))
            self.x=newX
            self.y=newY
            return True
        return False
    def distanceBetween(self, location):
        return sqrt(float((self.x-location.x)**2)+float((self.y-location.y)**2))
    
    def distanceCoords(self, x, y):
        return sqrt(float((x)**2)+float((y)**2))

# Main

def printHelp(debug, gridPrint, airplane, airport):
    if gridPrint:
        if debug:
            print airplane.print_chart_airport(airport)
        else:
            print airplane.print_chart()

print "Welcome to the Airport Game!\n"

while True:
    rows = int(raw_input("Enter the maximum row number (1-9): "))
    if rows in range(1,10):
        break
    else:
        print "Invalid input"
while True:
    initX = int(raw_input("Enter initial X position: "))
    if initX<=rows and initX>=rows*-1:
        break
    else:
        print "Invalid input"
while True:
    initY = int(raw_input("Enter initial Y position: "))
    if initY<=rows and initX>=rows*-1:
        break
    else:
        print "Invalid input"
while True:
    gridPrint = raw_input("Would you like to have the grid printed after each turn? (y/n): ")
    if gridPrint.lower() != 'y' or gridPrint.lower != 'n':
        break
    else:
        print "Invalid input"
while True:
    debug = raw_input("Would you like to play in debug mode (where the airport is printed)? (y/n): ")
    if debug.lower() != 'y' or debug.lower != 'n':
        break
    else:
        print "Invalid input"

if gridPrint == 'y':
    gridPrint = True
else:
    gridPrint = False

if debug == 'y':
    debug = True
else:
    debug = False
    
airplane = AirLocation(rows, initX, initY)
dist = 0
while dist == 0:
    airport = AirLocation(rows)
    dist = airplane.distanceBetween(airport)
flights = 0
dist = 0
#SET UP COMPLETE

if debug:
    airplane.print_chart_airport(airport)
else:
    airplane.print_chart()

while True:
    print "Number of flights : "+ str(flights)
    print "Plane Location: (%s, %s)" %(str(airplane.x), str(airplane.y))
    if debug:
        print "Airport Location: ("+str(airport.x)+", "+str(airport.y)+")"
    print "Distance just flown: "+str(dist)+" miles"
    print "Distance to airport: %.3g miles" %(airplane.distanceBetween(airport))
    while True:
        newX = int(raw_input("What distance to fly in the x direction?: "))
        newY = int(raw_input("What distance to fly in the y direction?: "))
        if(airplane.fly(newX, newY)):
            break
        else:
            print "Invalid input"
    flights+=1
    dist=airplane.distanceCoords(newX, newY)
    print
    if airplane.distanceBetween(airport) == 0:
        print "You won in "+str(flights)+" turns! You are within sight of the airport!"
        print "Airport Location: ("+str(airport.x)+", "+str(airport.y)+")"
        break
    printHelp(debug, gridPrint, airplane, airport)

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