class FrontEnd(object):
def __init__(self):
self.sim = Sim()
pygame.init()
pygame.font.init()
self.screen = pygame.display.set_mode((G.screenWidth, G.screenHeight))
pygame.display.set_caption("AntBridgeSim")
self.clock = pygame.time.Clock()
self.setupButtons()
self.drawGrid()
for button in self.buttons:
button.draw(self.screen)
oldpos = self.sim.ant.pos
oldId = self.sim.antId
dead = None
while G.running:
time.sleep(G.sleep)
self.eventHandler()
self.drawBlock(self.sim.ant.pos)
self.drawJoint(self.sim.ant.pos)
self.drawBlock(oldpos)
self.drawJoint(oldpos)
oldpos = self.sim.ant.pos
if self.sim.antId != oldId:
oldId = self.sim.antId
self.drawGrid()
self.drawJoints() #TODO incrementally draw
pygame.display.flip()
if not dead:
try:
if not self.sim.step():
break
except Error as e:
print e
dead = True
except Success as e:
print e
dead = True
else:
paused = True
while paused:
for event in pygame.event.get():
if event.type == pygame.QUIT:
paused = False
G.running = False
def eventHandler(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
G.running = False
for button in self.buttons:
button.checkPressed(event)
def drawGrid(self):
for x in range(G.numBlocksX):
for y in range(G.numBlocksY):
self.drawBlock((x, y))
for x in range(G.numBlocksX + 1):
pygame.draw.line(
self.screen, G.lineColor, (x * G.blockWidth, 0),
(x * G.blockWidth, G.screenHeight - G.buttonPanelHeight),
G.lineWidth)
for y in range(G.numBlocksY + 1):
pygame.draw.line(self.screen, G.lineColor, (0, y * G.blockHeight),
(G.screenWidth, y * G.blockHeight), G.lineWidth)
def setupButtons(self):
self.buttons = []
buttonTexts = []
actions = []
# Button for speeding up animation
buttonTexts.append("Speed up!")
def action(button):
G.sleep = G.sleep / 2.0
print "Speed up! New speed %f" % (G.sleep)
actions.append(action)
# Button for slowing down animation
buttonTexts.append("Slow down.")
def action(button):
G.sleep = G.sleep * 2.0
print "Slow down. New speed %f" % (G.sleep)
actions.append(action)
# Button for pausing animation
buttonTexts.append("Pause")
def action(button):
button.text = "Resume"
button.draw(self.screen)
pygame.display.flip()
paused = True
while paused:
for event in pygame.event.get():
if event.type == MOUSEBUTTONDOWN:
paused = False
elif event.type == pygame.QUIT:
paused = False
G.running = False
button.text = "Pause"
button.draw(self.screen)
pygame.display.flip()
actions.append(action)
# This sets up all the buttons based on the above definitions
# To add a new button, just append the appropriate text and action above.
# When adding buttons, you don't need to change the code below.
numButtons = float(len(actions))
for i, (text, action) in enumerate(zip(buttonTexts, actions)):
button = Button(text, i * G.screenWidth / numButtons,
G.screenHeight - G.buttonPanelHeight,
G.screenWidth / numButtons, G.buttonPanelHeight,
action)
self.buttons.append(button)
def drawBlock(self, (x, y)):
if self.sim.ant.pos == (x, y):
color = G.searchColor
elif G.state[(x, y)] == G.SHAKING:
color = G.shakeColor
elif G.state[(x, y)] == G.NORMAL:
color = G.fillColor
elif G.state[(x, y)] == G.DEAD:
color = G.deadColor
else:
color = G.emptyColor
rect = pygame.draw.rect(
self.screen, color,
(x * G.blockWidth + G.lineWidth, y * G.blockHeight + G.lineWidth,
G.blockWidth - G.lineWidth, G.blockHeight - G.lineWidth), 0)
def transactions(self):
return self._txs
if __name__ == '__main__':
fname = './data/eth_usdt_med.csv'
sim = Sim(fname)
sim_iters = 50000
buy_len = 3
sell_len = 2
limit = 0.01 # amount to buy
trader = SimpleTrader(buy_len, sell_len, limit)
done = False
for i in range(sim_iters):
exchange_data, done = sim.step()
if done:
break
trader.act(exchange_data)
print("Done simulating {} steps".format(i))
print("SimpleTrader params: buy len {}, sell len {}, buy limit {}".format(
buy_len, sell_len, limit))
print("PnL: {:.3f}".format(trader.pnl()))
print("First 3 transactions:")
for t in trader.transactions()[:3]:
print(t)
class BatchRun(object):
def __init__(self, numRuns, output):
# desired statistics
antsPerRun = 0
successfulRuns = 0
failedRuns = 0
maxHeightAchieved = 0
heightPerRun = 0
success = True
if output is not None:
outfile = open(output, "w")
G.outfile = outfile
for i in range(numRuns):
if G.verbose:
print >> G.outfile, "RUNNING BATCH " + str(i + 1)
print "RUNNING BATCH " + str(i + 1)
try:
self.sim = Sim()
while G.running:
if not self.sim.step():
break
G.running = True
except Error as e:
if G.verbose:
print e
success = None
except Success as s:
if G.verbose:
print s
# accumulate statistics
heightPerRun += self.sim.maxHeight + 1
if self.sim.maxHeight > maxHeightAchieved:
maxHeightAchieved = self.sim.maxHeight
if success:
antsPerRun += self.sim.numAnts
successfulRuns += 1
else:
failedRuns += 1
success = True
#sanity check
if numRuns != successfulRuns + failedRuns:
raise WeirdError("Runs weren't counted right... weird!")
# summarize statistics
statsString = "Ran a batch of " + str(numRuns) \
+ " simulations. "
if successfulRuns != 0:
statsString += "\n Average Ants To Complete a Bridge: " \
+ str(float(antsPerRun) / float(successfulRuns))
statsString += "\n Percentage of Successful Runs: " \
+ str(float(successfulRuns) * 100.0 / float(numRuns)) \
+ "%" \
+ "\n Average Height of Bridges Built: " \
+ str(float(heightPerRun) / float(numRuns)) \
+ "\n Maximum Height of Bridges Built: " \
+ str(maxHeightAchieved + 1)
print >> G.outfile, statsString
goal_pxl = np.array([CAM_WIDTH / 2., CAM_HEIGHT / 2.])
# Holds features with desired selection criteria
pnts = None
prev_pnts = None
feats = None
draw = []
# Perform VS for t seconds
t = 50
vel = np.array([0., 0., 0., 0., 0., 0.])
prev_time = start
while (time.time() - start) < t:
# Get image from sim and find ORB keypoints
print("Starting new frame")
rgb, depth = sim.step()
featimg, kps, des = finder.get_orb(rgb)
# Convert target and goal pixels to cartesian space
target_pnt = ibvs.feature_to_pnt(target_pxl, depth)
goal_pnt = ibvs.feature_to_pnt(goal_pxl, depth)
if constellation.is_empty():
# #
# Feature selection #
# #
# Find translational distance from goal
diff = goal_pnt - target_pnt
# TODO: Select features by score and distance
feats = []
ep_return = 0
obs = s.reset() # Do this BEFORE adding a manual or random car
if args.control_car_type == "human":
s.add_manual_car(fig)
elif args.control_car_type == "random":
s.add_random_car()
obs = s.get_obs()
if not args.nogui:
s.render(ax=ax)
plt.pause(0.01)
while not done:
obs, reward, done, info = s.step(get_car_actions(obs))
ep_return += reward
if not args.nogui:
s.render(ax=ax)
plt.pause(0.01)
if i % 10 == 0:
print(i)
collisions.append(s.check_collisions())
goals.append(s.goals_reached)
returns.append(ep_return)
returns = np.array(returns).sum(axis=1) / NUM_RL_CARS
print(
f"avg returns ${np.sum(returns)/len(returns):.2f}\\pm{scipy.stats.sem(returns):.2f}$"
)
def main():
parser = argparse.ArgumentParser(description='Run autonomous vehicle swarm simulation.')
parser.add_argument('num_cars', type=int)
parser.add_argument('map_path')
parser.add_argument('--path-reversal-prob', type=float, required=False)
parser.add_argument('--angle-min', type=float, required=False)
parser.add_argument('--angle-max', type=float, required=False)
parser.add_argument('--timestep', type=float, required=False, default=0.1)
parser.add_argument('--angle-mode', choices=['auto', 'auto_noise', 'random'], default='auto', required=False)
parser.add_argument('--angle-noise', type=float, default=0.0, required=False)
parser.add_argument('--save-video', action='store_true', default=False, required=False)
parser.add_argument('--nogui', action='store_true', default=False, required=False)
parser.add_argument('--collision-penalty', choices=['none', 'low'], default='none', required=False)
parser.add_argument('--num_episodes', type=int, default=1, required=False)
args = parser.parse_args()
POLICY_FILENAME = POLICY_FILES[args.map_path]
if args.save_video:
assert not args.nogui
# WARNING: This must match the class of the saved policy. See the main() method in train.py
def policy_fn(name, ob_space, ac_space):
return mlp_mean_embedding_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=[64], feat_size=[64])
# Load the policy
po = ActWrapper.load(POLICY_FILENAME, policy_fn)
# WARNING: This must match the environment for the saved policy. See the main() method of train.py
env = Sim(
args.num_cars, args.map_path, args.path_reversal_prob or 0,
args.angle_min or 0, args.angle_max or 2*np.pi,
angle_mode=args.angle_mode, angle_noise=args.angle_noise,
timestep=args.timestep, save_video=args.save_video,
collision_penalty=args.collision_penalty
)
if not args.nogui:
# Create window for rendering
plt.ion()
fig, ax = plt.subplots(figsize=(8,8))
fig.canvas.set_window_title('AV Swarm Simulator')
plt.show()
env.render(ax=ax)
plt.pause(0.01)
stochastic = True # idk why not
returns = []
collisions = []
goals = []
for i in range(args.num_episodes):
obs = env.reset()
done = False
ep_return = 0
while not done:
ac, vpred = po._act.act(stochastic, obs)
obs, reward, done, info = env.step(ac)
ep_return += reward
if not args.nogui:
env.render(ax=ax)
plt.pause(0.01)
collisions.append(env.check_collisions())
goals.append(env.goals_reached)
returns.append(ep_return)
if i % 10 == 0:
print(i)
returns = np.array(returns).sum(axis=1) / args.num_cars
print(f"avg returns ${np.sum(returns)/len(returns):.2f}\\pm{scipy.stats.sem(returns):.2f}$")
print(f"avg goals ${np.sum(goals)/len(goals):.2f}\\pm{scipy.stats.sem(goals):.2f}$")
print(f"avg collisions ${np.sum(collisions)/len(collisions):.2f}\\pm{scipy.stats.sem(collisions):.2f}$")
env.close()
)
if not args.nogui:
s.render(ax=ax)
plt.pause(0.01)
# ACTIONS = [(200, 0)] #, (0, np.pi/6), (50, np.pi/12)]
# Takes 20 steps to turn around
# ACTIONS = [(100, 0.1)]
ACTIONS = [(100, 0)] # TEMP: For LIDAR debugging
rng = np.random.default_rng(42)
car_actions = [rng.choice(ACTIONS) for _ in range(args.num_cars)]
import time
starttime = time.time()
for i in range(80):
obs, reward, done, info = s.step(car_actions)
print('reward', reward)
if not args.nogui:
s.render(ax=ax)
plt.pause(0.01)
print('total time', time.time()-starttime)
if not args.nogui:
plt.pause(10)
s.close()
# FIXME: Some problems right off the bat:
# - I can't keep the plt window open without pausing it for a long period of time.
