def test_grid_value_iteration():
pygame.init()
w = 6
h = 5
rewards = ((24, 1),
(2, -1),
(11, -1),
(27, -1))
terminal = [2, 11, 24]
new_pos = {"top": 2, "bot": 3, "left": 0, "right": 1}
S, A, T, P = create_grid_world(w, h, rewards, terminal)
start_time = time()
V, Pi = value_iteration(S, A, P, T)
print("--- %s seconds ---" % (time() - start_time))
win = pygame.display.set_mode((w * 100, h * 100))
for i in range(w * h):
if i % w == 0 and i != 0:
print("")
print(round(V[i], 7), end=" ")
print("")
for i in range(w * h):
if i % w == 0 and i != 0:
print("")
print(Pi[i], end=" ")
st = reset_grid(w, h)
while not is_terminal(st, T):
display_grid(win, w, h)
event_loop()
display_reward_grid(win, rewards, w, h)
display_mouse_grid(win, st, w, h)
sleep(1)
positions = {"top": st - w,
"bot": st + w,
"left": st - 1,
"right": st + 1
}
positions_bis = {key: Pi[st][new_pos[key]] for key, value in positions.items() if 0 <= value < w * h and Pi[st][new_pos[key]] > 0}
action = max(positions_bis, key=positions_bis.get)
a = new_pos[action]
st, r, term = step(st, a, T, S, P)
display_grid(win, w, h)
display_reward_grid(win, rewards, w, h)
display_mouse_grid(win, st, w, h)
def test_grid_q_learning():
pygame.init()
w = 6
h = 5
rewards = ((24, 1),
(2, -1),
(11, -1),
(27, -1))
terminal = [2, 11, 24]
new_pos = {"top": 2, "bot": 3, "left": 0, "right": 1}
S, A, T, P = create_grid_world(w, h, rewards, terminal)
start_time = time()
Q, Pi = tabular_q_learning_control(T, S, P, len(S), len(A), reset_line, is_terminal, step,
episodes_count=10000, max_steps_per_episode=100)
print("--- %s seconds ---" % (time() - start_time))
win = pygame.display.set_mode((w * 100, h * 100))
for i in range(w * h):
if i % w == 0 and i != 0:
print("")
print(Pi[i], end=" ")
st = reset_grid(w, h)
while not is_terminal(st, T):
display_grid(win, w, h)
event_loop()
display_reward_grid(win, rewards, w, h)
display_mouse_grid(win, st, w, h)
sleep(1)
positions = {"top": st - w,
"bot": st + w,
"left": st - 1,
"right": st + 1
}
a = np.argmax(Q[st])
st, r, term = step(st, a, T, S, P)
display_grid(win, w, h)
display_reward_grid(win, rewards, w, h)
display_mouse_grid(win, st, w, h)