gui.py

def showGui(x,y,max_x,max_y):
    if y >= max_y or x >= max_x:
        print('Error, beyound the screen')
    # strar line creation
    str = ''
    for i in range(max_x):
        str += '*'

    # boundary line creation
    str1 ='*'
    for i in range(max_x-2):
        str1+=' '
    str1+='*'

    # boundary line + avater creation
    # *space#space*
    avater='*'
    for i in range(x-2):
        avater+=' '
    avater+='#'
    for i in range(max_x-x-1):
        avater+=' '
    avater+='*'

    print(str) # first star line
    for i in range(y-2):
        print(str1)
    print(avater)
    for i in range(max_y-y-1):
        print(str1)
    print(str) # last star line
#showGui end here


# Main program start here

max_x=40
max_y=20
x = 3
y = 3
ans = ''

showGui(x,y,max_x,max_y)

while ans!='q':
    ans = input()
    if ans == 'q':
        exit()
    elif ans == 'a':
        x-=1
        if x < 2:
            x = 2
    elif ans == 'd':
        x+=1
        if x > max_x-1:
            x = max_x-1
    elif ans == 'w':
        y-=1
        if y < 2:
            y = 2
    elif ans == 's':
        y+=1
        if y > max_y-1:
            y = max_y-1

    showGui(x,y,max_x,max_y)