def put(self):
"""Update player position."""
uid = self.get_argument('uid')
x = self.get_argument('x')
y = self.get_argument('y')
now = get_datetimenow_with_server_timezone()
# Update player with new coordinates
with rdb_connection() as conn:
rdb.table('players').get(uid).update(
{'y': y, 'x': x, 'touched': now}
).run(conn)
def post(self):
"""Log new player to receive uid."""
name = self.get_argument('name')
now = get_datetimenow_with_server_timezone()
with rdb_connection() as conn:
output = rdb.table('players').insert(
{'name': name, 'y': 3, 'x': 3, 'touched': now}
).run(conn)
if output.get('generated_keys'):
uid = output['generated_keys'][0]
self.write({'uid': uid})
def get(self):
"""Get list of currently active players on the map.
Before selecting active players, we make sure to delete guys that
were inactive for more then 30 seconds.
"""
now = get_datetimenow_with_server_timezone()
with rdb_connection() as conn:
# Removing old players
rdb.table('players').filter(
lambda player: player['touched'] < (now - timedelta(seconds=30))
).delete().run(conn)
# Selecting active players
players = rdb.table('players').without('touched').run(conn)
self.write({'players': list(players)})