def time_warp_to_land(conn, vessel, recover=False):
if vessel.parts.parachutes[
0].state.name == "active" or vessel.parts.parachutes[
0].state.name == "semi_deployed":
pass
else:
assert False, f"Parachute state is {vessel.parts.parachutes[0].state.name}"
space_center = conn.space_center
space_center.physics_warp_factor = 3
logger.info("Waiting until landing...")
surface_altitude = conn.get_call(getattr, vessel.flight(),
'surface_altitude')
expr = conn.krpc.Expression.less_than(
conn.krpc.Expression.call(surface_altitude),
conn.krpc.Expression.constant_double(50))
event = conn.krpc.add_event(expr)
with event.condition:
event.wait()
space_center.physics_warp_factor = 0
if recover:
while not vessel.recoverable:
time.sleep(1)
if vessel.recoverable:
time.sleep(10)
vessel.recover()
return True
def crew_list(vessel):
if vessel.crew_capacity == 0:
logger.info(f"Craft is unmanned.")
return []
else:
logger.info(
f"Craft contains {vessel.crew_count} out of {vessel.crew_capacity} crew members"
)
return vessel.crew
def wait_for_safe_parachute(conn, vessel):
logger.info("Waiting until safe to deploy parachute...")
mean_altitude = conn.get_call(getattr, vessel.flight(), 'mean_altitude')
expr = conn.krpc.Expression.less_than(
conn.krpc.Expression.call(mean_altitude),
conn.krpc.Expression.constant_double(2000))
event = conn.krpc.add_event(expr)
with event.condition:
event.wait()
return True
def wait_for_fuel_to_run_out(conn, vessel):
logger.info("Waiting for fuel to run out...")
fuel_amount = conn.get_call(vessel.resources.amount, 'SolidFuel')
expr = conn.krpc.Expression.less_than(
conn.krpc.Expression.call(fuel_amount),
conn.krpc.Expression.constant_float(0.1))
event = conn.krpc.add_event(expr)
with event.condition:
event.wait()
return True
def setup_active_vessel(krpc_connect):
logger.debug("Checking for active for vessel...")
conn = krpc_connect
try:
vessel = conn.space_center.active_vessel
logger.info(f"Active Vessel Found: {vessel.name}")
yield vessel
except Exception as ex:
logger.error("Could not find active vessel")
logger.error(f"Reason: {ex}")
assert False, f"Could not find active vessel - {ex}"
return krpc_connect
def simple_launch(conn, vessel):
success = False
if vessel.situation.name != "pre_launch":
abort_launch(conn, vessel)
return False
vessel.auto_pilot.engage()
logger.info("Wait 5 seconds to launch...")
time.sleep(5)
logger.info("Launching...")
vessel.control.activate_next_stage()
vessel.auto_pilot.target_pitch_and_heading(60, 180)
success = wait_for_fuel_to_run_out(conn, vessel)
if not success:
return False
logger.info("Ditch the empty tank...")
vessel.control.activate_next_stage()
vessel.auto_pilot.disengage()
success = wait_for_safe_parachute(conn, vessel)
if not success:
return False
logger.info("Activating Parachute.")
vessel.control.activate_next_stage()
time.sleep(3)
success = time_warp_to_land(conn, vessel)
if not success:
return False
return True
def log_and_print(message):
logger.info(message)
print(message)
def set_autopilot(vessel, pitch=90, heading=90):
logger.info("Engaging Autopilot")
vessel.auto_pilot.engage()
logger.info(f"Set pitch to {pitch} and heading to {heading}")
vessel.auto_pilot.target_pitch_and_heading(pitch, heading)