def _rotate(self):
"""Control yaw Reaction control system
based on angle, angular velocity and target angle
"""
#TODO deltat
self._angle += self._angular_velocity * seconds(1)
self.yaw_rcs_status = ''
signed_delta = float(self._target_angle - self._angle)
# signed_delta is defined between -180 and 180
if signed_delta > 180:
signed_delta -= 360
if abs(signed_delta) < .1:
# rotation completed
self._angular_velocity = degrees_per_sec(0)
self._angle = self._target_angle
return
av = self._angular_velocity
# momentum should be degrees per (sec ** 2)
momentum = degrees_per_sec(math.copysign(.1, signed_delta))
if av != 0 and math.sqrt(2 * abs(signed_delta) / .1) > \
1.05 * abs(signed_delta / av):
# closing too fast - better slow down
self._angular_velocity -= momentum
cw = momentum < 0
elif av == 0 or math.sqrt(2 * abs(signed_delta) / .1) < \
0.95 * abs(signed_delta / av):
# increase speed
self._angular_velocity += momentum
cw = momentum > 0
else:
return
self.yaw_rcs_status = 'YAW CW' if cw else 'YAW CCW'
t = RCSThruster(self, cw=cw)
game._particles.append(t)
def _rotate(self):
"""Control yaw Reaction control system
based on angle, angular velocity and target angle
"""
#TODO deltat
self._angle += self._angular_velocity * seconds(1)
self.yaw_rcs_status = ''
signed_delta = float(self._target_angle - self._angle)
# signed_delta is defined between -180 and 180
if signed_delta > 180:
signed_delta -= 360
if abs(signed_delta) < .1:
# rotation completed
self._angular_velocity = degrees_per_sec(0)
self._angle = self._target_angle
return
av = self._angular_velocity
# momentum should be degrees per (sec ** 2)
momentum = degrees_per_sec(math.copysign(.1, signed_delta))
if av != 0 and math.sqrt(2 * abs(signed_delta) / .1) > \
1.05 * abs(signed_delta / av):
# closing too fast - better slow down
self._angular_velocity -= momentum
cw = momentum < 0
elif av == 0 or math.sqrt(2 * abs(signed_delta) / .1) < \
0.95 * abs(signed_delta / av):
# increase speed
self._angular_velocity += momentum
cw = momentum > 0
else:
return
self.yaw_rcs_status = 'YAW CW' if cw else 'YAW CCW'
t = RCSThruster(self, cw=cw)
game._particles.append(t)
def __init__(self, gcenter):
gloss.Sprite.__init__(self, gloss.Texture('art/shuttle.png'))
self._angle = degrees(0)
self._target_angle = degrees(0)
self._angular_velocity = degrees_per_sec(0)
self._orbit_prediction_thread = None
self._orbit_prediction_running = False
self._raw_scale = .025
self._raw_scale = .015 # fixme
self._tp = None
self.gcenter = gcenter
self.gspeed = GVector(0, -0.3)
self.mass = 4
self.orbit = ()
self.propellent = 1500
self.hull_temperature = 0
self.landing_gears_deployed = False
self._start_orbit_prediction()
def __init__(self, gcenter):
gloss.Sprite.__init__(self, gloss.Texture('art/shuttle.png'))
self._angle = degrees(0)
self._target_angle = degrees(0)
self._angular_velocity = degrees_per_sec(0)
self._orbit_prediction_thread = None
self._orbit_prediction_running = False
self._raw_scale = .025
self._raw_scale = .015 # fixme
self._tp = None
self.gcenter = gcenter
self.gspeed = GVector(0, -0.3)
self.mass = 4
self.orbit = ()
self.propellent = 1500
self.hull_temperature = 0
self.landing_gears_deployed = False
self._start_orbit_prediction()
