def constraints(self, particle):
# adjust the effects of the limits (constraints) of the world on the partcle
# it must run before acceleration and velocity are applied in impulse
World.Log_Data("constraint start: {}".format(particle))
if particle.position.get_z() > self.max_z:
particle.velocity = Vector3dm.zero_vector()
particle.acceleration = Vector3dm.zero_vector()
particle.position.set_z(self.max_z)
World.Log_Data(
"YES! Rock bottom post constraints:{}".format(particle))
if particle.position.get_y() > self.max_y:
particle.position.set_y(self.max_y)
if particle.position.get_x() > self.max_x:
particle.position.set_y(self.max_x)
if particle.position.get_y() < self.min_y:
particle.position.set_y(self.min_y)
if particle.position.get_x() < self.min_x:
particle.position.set_x(self.min_x)
if particle.position.get_z() < self.min_z:
particle.position.set_z(self.min_z)
if particle.velocity.get_z() > 20.0:
particle.velocity.set_z(20.0)
World.Log_Data("constraint end: {}".format(particle))
def __init__(self, pos_vect, vel_vect=Vector3dm.zero_vector(), id=""):
self.position = pos_vect
self.velocity = vel_vect
self.acceleration = Vector3dm.zero_vector()
self.id = id
self.count = 0
# various accelration Attributes
# aerodynamics
self.aero_coef = .05 # scale factor for Aerodynamic drag which opposes velocity
#colision avoidance
self.col_size = 1 # collision size
self.dis_size = 20 # display size
self.color = (255, 255, 255)
self.flash_color = (255, 50, 0) # bright red
def brain(self):
# this is code that changes the acceleration based on pixie desires.
result = Vector3dm.zero_vector()
CLOSE_RANGE = 10.0
MAX_ACC = 20.0
if self.goal is None:
self.goal = self.goals[self.goal_idx]
self.goal_idx += 1
if self.goal_idx > len(self.goals):
self.goal_idx = 0
World.Log_Data("brain New Goal: {} (#{})".format(self.goal,self.goal_idx))
return result
range = self.position.magnitude(self.goal)
if range < CLOSE_RANGE: # we've reached our goal
self.goal = None
World.Log_Data("brain REACHED goal")
return result
World.Log_Data("brain Current goal: {}".format(self.goal))
World.Log_Data("brain range: {}".format(range))
direction = self.position.point_at_that(self.goal)
World.Log_Data("point at {} from {} to {}".format(direction.convert_to_cartesian(),self.position,self.goal))
if direction.get_r() > MAX_ACC:
direction.set_r(MAX_ACC)
speed = self.velocity.get_r()
slowing = speed/MAX_ACC # Seconds to slow
arrival = range/speed # seconds to get there
if slowing < arrival:
result = direction
World.Log_Data("brain Speeding Toward Direction: {}={}".format(result,result.convert_to_cartesian()))
else:
if speed <= CLOSE_RANGE:
return Vector3dm.zero_vector() #coast closer
elif speed < CLOSE_RANGE+MAX_ACC:
direction.set_r(speed - CLOSE_RANGE) #get the speed to around the close_range; fastest we can go to not overshoot
result = direction.neg()
World.Log_Data("brain SLOWING toward direction: {} (Direction: {}".format(result,direction))
return result
def test_zero_vector(self):
zero_vector = Vector3dm.zero_vector()
vx = zero_vector.get_x()
vy = zero_vector.get_y()
vz = zero_vector.get_z()
vr = zero_vector.get_r()
self.assertAlmostEqual(vx,0.0,6,"test_zero_vector bad result: is {} should be {}".format(vx,0.0))
self.assertAlmostEqual(vy,0.0,6,"test_zero_vector bad result: is {} should be {}".format(vy,0.0))
self.assertAlmostEqual(vz,0.0,6,"test_zero_vector bad result: is {} should be {}".format(vz,0.0))
self.assertAlmostEqual(vr,0.0,6,"test_zero_vector bad result: is {} should be {}".format(vr,0.0))
self.assertEqual(type(zero_vector.vals),type([]),"test changed vals type")
def impulse(self):
for i in range(0, len(self.particles)):
el = self.particles[i]
el.acceleration = Vector3dm.zero_vector()
World.Log_Data("{}: impulse old: {}".format(i, el))
brain_acc = el.brain()
brain_acc.set_r(brain_acc.get_r() * float(self.impulse_duration) /
World.MICROS_IN_SEC)
World.Log_Data("{}: brain: {}".format(
i, brain_acc.convert_to_cartesian()))
aero_acc = el.aero_acc()
World.Log_Data("{}: pre set aero_acc: {}".format(
i, aero_acc.convert_to_cartesian()))
aero_acc.set_r(brain_acc.get_r() * float(self.impulse_duration) /
World.MICROS_IN_SEC)
World.Log_Data("{}: post set aero_acc: {}".format(
i, aero_acc.convert_to_cartesian()))
gravity_acc = self.gravity(el)
physics_acc = self.physics(el)
World.Log_Data("{}: impulse pre:{}".format(i, el))
el.acceleration = Vector3dm.zero_vector().add(brain_acc).add(
aero_acc).add(gravity_acc).add(physics_acc)
el.velocity = el.velocity.add(el.acceleration)
el.position = el.position.add(el.velocity)
World.Log_Data("{}: impulse post:{}".format(i, el))
self.constraints(
el) # change the particle based on wall/space constraints
World.Log_Data("{}: impulse new: {}".format(i, el))
self.collisions()
self.sim_time += self.impulse_duration
World.Log_Data("time: {}".format(self.sim_time))
if x > max_x:
v.set_x(max_x)
elif x < min_x:
v.set_x(min_x)
if y > max_y:
v.set_y(max_y)
elif y < min_y:
v.set_y(min_y)
if z > max_z:
v.set_z(max_z)
elif z < min_z:
v.set_z(min_z)
#if bad_vec:
# print("bad vec",dist,old_v.convert_to_cartesian(),v)
return v
v = Vector3dm.zero_vector()
for i in range(0, 3000):
print("{}\t{}".format(v.get_x(), v.get_z()))
v = rand_vector(v, 90, 150)
#print(rand_vector(300))
#for phi_deg in range(0,91,1):
# for theta_deg in range(0,361,1):
# phi = math.radians(phi_deg)
# theta = math.radians(theta_deg)
# v = Vector3dm(300,theta,phi,"s")
# if v.convert_to_cartesian().get_z() < 0:
# print(theta_deg,phi_deg,"||",v,"||",v.convert_to_cartesian())
def collision_avoidance(self):
#apply the efforts of the
return Vector3dm.zero_vector()
def physics(self, particle):
# apply other kinds of physics (besides aerodynamics and gravity )
return Vector3dm.zero_vector()
def __init__(self,pos_vect,vel_vect=Vector3dm.zero_vector()): super().__init__(pos_vect, vel_vect) self.goals = [Vector3dm(10,-10,100,"c"),Vector3dm(400,400,100,"c"),Vector3dm(0,0,500,"c"),Vector3dm(-400,-400,800,"c")] self.goal_idx = 0 # first goal, increment as we go self.goal = None # brain will calculate first goal
