Dungeon game Python

#draw grid
# pick the random location for player
#pick the random location for door
#pick the random location for monster
#draw player in the grid
#take input movement
#move player , unless invalid move (pass edge of grid)
#check win or loss
#redraw the grid 
import os
import random
CELLS=[(0,0),(1,0),(2,0),(3,0),(4,0),
       (0,1),(1,1),(2,1),(3,1),(4,1),
       (0,2),(1,2),(2,2),(3,2),(4,2),
       (0,3),(1,3),(2,3),(3,3),(4,3),
       (0,4),(1,4),(2,4),(3,4),(4,4),
      ]

def clear():
    os.system('cls' if os.name=='nt' else 'clear')
def get_location():
    return random.sample(CELLS,3)


def move_player(player,move):
    x,y=player
    if move=='LEFT':
        x=x-1
    if move =='RIGHT':
        x=x+1
    if move =='UP':
        y=y-1
    if move == 'DOWN':
        y=y+1
    return x,y 
    #get the player location
    #if move left x-1
    #if move right x+1
    #if move up y+1
    #if move down y-1

    return player

def get_moves(player):
    moves=['RIGHT','LEFT','UP','DOWN']
    x,y=player
    if x==0:
        moves.remove('LEFT')
    if x==4:
        moves.remove('RIGHT')
    if y==0:
        moves.remove('UP')
    if y==4:
        moves.remove('DOWN')
    #if player's y==0,they can't moveup
    #if player's y==4. they can't move down
    #if player's x==0, they can't move left
    # if player's x==4, they can't move right
    return moves
def draw_map(player):
    print(' _'*5)
    tile='|{}'
    for cell in CELLS:
        x, y=cell
        if x < 4:
            line_end=''
            if cell==player:
                output=tile.format('X')
            else:
                output=tile.format('_')
        else:
            line_end='\n'
            if cell==player:
                output=tile.format('X|')
            else:
                output=tile.format('_|')
        print(output,end=line_end)

def game_loop():
    monster,door,player= get_location()
    while True:
        draw_map(player)
        valid_move=get_moves(player)

        print('You are currently in room {}'.format(player)) #fill the player position
        print('You can move {}'.format(','.join(valid_move))) # valid move
        print('Enter Q/q to quit the game')

        move=input('>').upper()
        if move=='Q':
            break
        if move not in ['RIGHT','LEFT','DOWN','UP']:
          input('Please enter valid direction')
          continue
        if move in valid_move:
            player = move_player(player,move) 
        else:
            input('\n ** Walls are hard, do not run into them **\n')
        clear()

    # good move? change the position
    #bad move? Change nothing
    #on the door ? they win
    # on the monster? they lose
    #otherwise loop back around

clear()
print('Welcome to dungeon!')
input('Press return to start!')
clear()
game_loop()