def setUp(self):
self.field = Field(11, 11)
predators = [Predator((0, 0)), Predator((0, 10)), Predator((10, 0))]
prey = Prey((5, 5))
for pred in predators:
self.field.add_player(pred)
self.field.add_player(prey)
def test_predators_have_collided(self):
f = Field(11, 11)
predator1 = Predator(id="Plato", location=(1, 1))
predator2 = Predator(id="Pythagoras", location=(1, 1))
chip = Prey(id="Kant", location=(5, 5))
f.add_player(predator1)
f.add_player(predator2)
f.add_player(chip)
s = State.state_from_field(f)
self.assertTrue(s.predators_have_collided())
self.assertTrue(s.prey_is_caught() == False)
def setup_prey():
prey = Prey("Chip", prey_loc)
prey.plearner = prey_plearner(field=field, agent=prey, **prey_plearner_params) # TODO: check of *array kan
field.add_player(prey)
return prey
def run(n_episodes=1000, gui=False):
"""
runs a simulation with 3 predators, one prey and random policies for all agents
:return:
"""
#initialize the environment
field = Field(11, 11)
num_episodes = n_episodes
pred1loc = (0, 0)
pred2loc = (10, 10)
pred3loc = (0, 10)
preyloc = (5, 5)
#initialize the predators
predator1 = Predator(id="Plato", location=pred1loc)
predator2 = Predator(id="Pythagoras", location=pred2loc)
# predator3 = Predator(pred3loc)
#probabilistic
# predator1.plearner = ProbabilisticPlearner(field=field, agent=predator1)
# predator2.plearner = ProbabilisticPlearner(field=field, agent=predator2)
# predator3.plearner = ProbabilisticPlearner(field=field, agent=predator3)
#greedy Q
#predator1.plearner = SarsaPlearner.create_greedy_plearner(field=field, agent=predator1, value_init=0,epsilon=0.01)
# predator2.plearner = SarsaPlearner.create_greedy_plearner(field=field, agent=predator2, value_init=0,epsilon=0.01)
# predator1.plearner = QPlearner.create_greedy_plearner(field=field, agent=predator1, value_init=0)
# predator2.plearner = QPlearner.create_greedy_plearner(field=field, agent=predator2, value_init=0)
# predator3.plearner = QPlearner.create_greedy_plearner(field=field, agent=predator3)
# wolf
predator1.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=predator1)
predator2.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=predator2)
# predator3.plearner = Wolf_phc.create_greedy_plearner(field=field, agent=predator3)
#softmax Q
#predator1.plearner = QPlearner.create_softmax_plearner(field=field, agent=predator1)
#predator2.plearner = QPlearner.create_softmax_plearner(field=field, agent=predator2)
# predator3.plearner = QPlearner.create_softmax_plearner(field=field, agent=predator3)
#minimax q
# predator1.plearner = MiniMaxQPlearner(field=field,agent=predator1,end_alpha=0.01,num_episodes=num_episodes)
field.add_player(predator1)
field.add_player(predator2)
# field.add_player(predator3)
#initialize the prey
chip = Prey(id="Kant", location=preyloc)
# chip.plearner = ProbabilisticPlearner(field=field, agent=chip)
chip.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=chip,
epsilon=0.01)
#chip.plearner = QPlearner.create_softmax_plearner(field=field, agent=chip)
# chip.plearner = MiniMaxQPlearner(field=field,agent=chip,end_alpha=0.01,num_episodes=num_episodes)
field.add_player(chip)
field.init_players()
# set GUI
if gui:
GUI = GameFrame(field=field)
num_steps = []
pred_win = []
for i in range(0, n_episodes):
predator1.location = pred1loc
predator2.location = pred2loc
#predator3.location = pred3loc
chip.location = preyloc
field.update_state()
field.steps = 0
#run the simulation
while not field.is_ended():
field.run_step()
if gui and i == n_episodes - 1:
GUI.update()
time.sleep(0.2)
num_steps.append(field.steps)
pred_win.append(field.state.prey_is_caught())
# breakpoint
#if i > 900:
# pass
#print State.state_from_field(field)
num_steps.append(field.steps)
if i % 100 == 0:
print i
# print State.state_from_field(field), field.steps, field.state.prey_is_caught()
# print State.state_from_field(field), field.steps, field.state.prey_is_caught()
# print [str(state) + ": " + str([predator1.plearner.policy.value[State([state]),action] for action in predator1.get_actions() ])for state in itertools.product([-1,0,1],repeat=2)]
# for action in chip.get_actions():
# print '1', action, predator1.plearner.policy.get_value(State([(0,-1),(0,1)]),action)
# print '2', action, predator2.plearner.policy.get_value(State([(0,-1),(0,1)]),action)
step = 50
plot_steps(num_steps,
pred_win,
window_size=step,
title="moving average over " + str(step) + " episodes")
def __init__(self, field=None, agent=None, epsilon=.0):
value_init = 1.0 / len(Prey(None, None).get_actions())
super(Mixed_policy, self).__init__(field=field,
agent=agent,
value_init=value_init)
self.epsilon = epsilon
def run_wolf(n_episodes=1000):
# initialize the environment
field = Field(3, 3)
"""
initial state:
| | | |
|X|O|X|
| | | |
"""
pred1loc = (0, 1)
pred2loc = (2, 1)
preyloc = (1, 1)
predator1 = Predator(id="Plato", location=pred1loc)
predator2 = Predator(id="Pythagoras", location=pred2loc)
# WoLF
predator1.plearner = Wolf_phc.create_greedy_plearner(field=field, agent=predator1)
predator2.plearner = Wolf_phc.create_greedy_plearner(field=field, agent=predator2)
field.add_player(predator1)
field.add_player(predator2)
chip = Prey(id="Kant", location=preyloc)
chip.plearner = Wolf_phc.create_greedy_plearner(field=field, agent=chip, epsilon=0.01)
field.add_player(chip)
field.init_players()
plot_state = State.state_from_field(field)
num_steps = []
pred_win = []
value_of_pred1 = []
value_of_pred2 = []
value_of_prey = []
for i in range(0, n_episodes):
predator1.location = pred1loc
predator2.location = pred2loc
chip.location = preyloc
field.update_state()
field.steps = 0
# run the simulation
while not field.is_ended():
field.run_step()
num_steps.append(field.steps)
pred_win.append(field.state.prey_is_caught())
value_of_pred1.append(predator1.plearner.policy.get_probability_mapping(plot_state))
value_of_pred2.append(predator2.plearner.policy.get_probability_mapping(plot_state))
value_of_prey.append(chip.plearner.policy.get_probability_mapping(plot_state))
# print progress every 10%
if n_episodes > 10 and i % (n_episodes / 10) == 0:
print int(1.0 * i / n_episodes * 100), "%"
# some list wrangling to get a list of 5 action lists with values for each predator
vp1 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred1)]
vp2 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred2)]
vpc = [[val[0] for val in sublist] for sublist in zip(*value_of_prey)]
# create plots
colors = ["r", "b", "g", "k", "m"]
actions = {
(0, 0): "stay",
(-1, 0): "left",
(1, 0): "right",
(0, -1): "up",
(0, 1): "down"
}
plt.figure(figsize=(15, 15))
s = plt.subplot(3, 1, 1)
s.set_yscale("log")
for index, action in enumerate(predator1.actions):
plt.plot(vp1[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 1")
plt.legend(loc="upper right")
s = plt.subplot(3, 1, 2)
s.set_yscale("log")
for index, action in enumerate(predator2.actions):
plt.plot(vp2[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 2")
# plt.legend(loc="upper left")
s = plt.subplot(3, 1, 3)
s.set_yscale("log")
for index, action in enumerate(chip.actions):
plt.plot(vpc[index], c=colors[index], label=actions[action])
plt.title("action probabilities for prey")
plt.suptitle(str(n_episodes) + " episodes")
plt.savefig(get_output_path() + "policychange-wolf-" + str(n_episodes) + ".pdf")
def run_minimax(n_episodes=1000):
# initialize the environment
field = Field(5, 5)
"""
initial state:
| | | |
|X|O| |
| | | |
"""
pred1loc = (0, 0)
preyloc = (2, 2)
predator1 = Predator(id="Plato", location=pred1loc)
# WoLF
predator1.plearner = MiniMaxQPlearner(field=field, agent=predator1, end_alpha=0.1, num_episodes=n_episodes, epsilon=0.1)
field.add_player(predator1)
chip = Prey(id="Kant", location=preyloc, tripping_prob=0.2)
chip.plearner = MiniMaxQPlearner(field=field, agent=chip, end_alpha=0.1, num_episodes=n_episodes, epsilon=0.1)
field.add_player(chip)
field.init_players()
plot_state = State([(1, 0)])
num_steps = []
pred_win = []
value_of_pred1 = []
value_of_prey = []
for i in range(0, n_episodes):
predator1.location = pred1loc
chip.location = preyloc
field.update_state()
field.steps = 0
# run the simulation
while not field.is_ended():
field.run_step()
# print field.state
num_steps.append(field.steps)
pred_win.append(field.state.prey_is_caught())
value_of_pred1.append(predator1.plearner.policy.get_probability_mapping(plot_state))
# print predator1.plearner.policy.get_probability_mapping(plot_state)
value_of_prey.append(chip.plearner.policy.get_probability_mapping(plot_state))
# print progress every 10%
if n_episodes >= 10 and i % (n_episodes / 10) == 0:
print int(1.0 * i / n_episodes * 100), "%:", field.steps, "steps"
# some list wrangling to get a list of 5 action lists with values for each predator
vp1 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred1)]
vpc = [[val[0] for val in sublist] for sublist in zip(*value_of_prey)]
# create plots
colors = ["r", "b", "g", "k", "m"]
actions = {
(0, 0): "stay",
(-1, 0): "left",
(1, 0): "right",
(0, -1): "up",
(0, 1): "down"
}
plt.figure(figsize=(15, 15))
s = plt.subplot(2, 1, 1)
# s.set_yscale("log")
plt.ylim([-0.1, 1.1])
for index, action in enumerate(predator1.actions):
plt.plot(vp1[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 1")
plt.legend(loc="upper right")
s = plt.subplot(2, 1, 2)
#s.set_yscale("log")
plt.ylim([-0.1, 1.1])
for index, action in enumerate(chip.actions):
plt.plot(vpc[index], c=colors[index], label=actions[action])
plt.title("action probabilities for prey")
plt.suptitle(str(n_episodes) + " episodes")
plt.savefig(get_output_path() + "policychange-minimax-" + str(n_episodes) + ".pdf")
def run_wolf(n_episodes=1000):
# initialize the environment
field = Field(3, 3)
"""
initial state:
| | | |
|X|O|X|
| | | |
"""
pred1loc = (0, 1)
pred2loc = (2, 1)
preyloc = (1, 1)
predator1 = Predator(id="Plato", location=pred1loc)
predator2 = Predator(id="Pythagoras", location=pred2loc)
# WoLF
predator1.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=predator1)
predator2.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=predator2)
field.add_player(predator1)
field.add_player(predator2)
chip = Prey(id="Kant", location=preyloc)
chip.plearner = Wolf_phc.create_greedy_plearner(field=field,
agent=chip,
epsilon=0.01)
field.add_player(chip)
field.init_players()
plot_state = State.state_from_field(field)
num_steps = []
pred_win = []
value_of_pred1 = []
value_of_pred2 = []
value_of_prey = []
for i in range(0, n_episodes):
predator1.location = pred1loc
predator2.location = pred2loc
chip.location = preyloc
field.update_state()
field.steps = 0
# run the simulation
while not field.is_ended():
field.run_step()
num_steps.append(field.steps)
pred_win.append(field.state.prey_is_caught())
value_of_pred1.append(
predator1.plearner.policy.get_probability_mapping(plot_state))
value_of_pred2.append(
predator2.plearner.policy.get_probability_mapping(plot_state))
value_of_prey.append(
chip.plearner.policy.get_probability_mapping(plot_state))
# print progress every 10%
if n_episodes > 10 and i % (n_episodes / 10) == 0:
print int(1.0 * i / n_episodes * 100), "%"
# some list wrangling to get a list of 5 action lists with values for each predator
vp1 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred1)]
vp2 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred2)]
vpc = [[val[0] for val in sublist] for sublist in zip(*value_of_prey)]
# create plots
colors = ["r", "b", "g", "k", "m"]
actions = {
(0, 0): "stay",
(-1, 0): "left",
(1, 0): "right",
(0, -1): "up",
(0, 1): "down"
}
plt.figure(figsize=(15, 15))
s = plt.subplot(3, 1, 1)
s.set_yscale("log")
for index, action in enumerate(predator1.actions):
plt.plot(vp1[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 1")
plt.legend(loc="upper right")
s = plt.subplot(3, 1, 2)
s.set_yscale("log")
for index, action in enumerate(predator2.actions):
plt.plot(vp2[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 2")
# plt.legend(loc="upper left")
s = plt.subplot(3, 1, 3)
s.set_yscale("log")
for index, action in enumerate(chip.actions):
plt.plot(vpc[index], c=colors[index], label=actions[action])
plt.title("action probabilities for prey")
plt.suptitle(str(n_episodes) + " episodes")
plt.savefig(get_output_path() + "policychange-wolf-" + str(n_episodes) +
".pdf")
def run_minimax(n_episodes=1000):
# initialize the environment
field = Field(5, 5)
"""
initial state:
| | | |
|X|O| |
| | | |
"""
pred1loc = (0, 0)
preyloc = (2, 2)
predator1 = Predator(id="Plato", location=pred1loc)
# WoLF
predator1.plearner = MiniMaxQPlearner(field=field,
agent=predator1,
end_alpha=0.1,
num_episodes=n_episodes,
epsilon=0.1)
field.add_player(predator1)
chip = Prey(id="Kant", location=preyloc, tripping_prob=0.2)
chip.plearner = MiniMaxQPlearner(field=field,
agent=chip,
end_alpha=0.1,
num_episodes=n_episodes,
epsilon=0.1)
field.add_player(chip)
field.init_players()
plot_state = State([(1, 0)])
num_steps = []
pred_win = []
value_of_pred1 = []
value_of_prey = []
for i in range(0, n_episodes):
predator1.location = pred1loc
chip.location = preyloc
field.update_state()
field.steps = 0
# run the simulation
while not field.is_ended():
field.run_step()
# print field.state
num_steps.append(field.steps)
pred_win.append(field.state.prey_is_caught())
value_of_pred1.append(
predator1.plearner.policy.get_probability_mapping(plot_state))
# print predator1.plearner.policy.get_probability_mapping(plot_state)
value_of_prey.append(
chip.plearner.policy.get_probability_mapping(plot_state))
# print progress every 10%
if n_episodes >= 10 and i % (n_episodes / 10) == 0:
print int(1.0 * i / n_episodes * 100), "%:", field.steps, "steps"
# some list wrangling to get a list of 5 action lists with values for each predator
vp1 = [[val[0] for val in sublist] for sublist in zip(*value_of_pred1)]
vpc = [[val[0] for val in sublist] for sublist in zip(*value_of_prey)]
# create plots
colors = ["r", "b", "g", "k", "m"]
actions = {
(0, 0): "stay",
(-1, 0): "left",
(1, 0): "right",
(0, -1): "up",
(0, 1): "down"
}
plt.figure(figsize=(15, 15))
s = plt.subplot(2, 1, 1)
# s.set_yscale("log")
plt.ylim([-0.1, 1.1])
for index, action in enumerate(predator1.actions):
plt.plot(vp1[index], c=colors[index], label=actions[action])
plt.title("action probabilities for predator 1")
plt.legend(loc="upper right")
s = plt.subplot(2, 1, 2)
#s.set_yscale("log")
plt.ylim([-0.1, 1.1])
for index, action in enumerate(chip.actions):
plt.plot(vpc[index], c=colors[index], label=actions[action])
plt.title("action probabilities for prey")
plt.suptitle(str(n_episodes) + " episodes")
plt.savefig(get_output_path() + "policychange-minimax-" + str(n_episodes) +
".pdf")
