3.4 Objectives

states = ["Green", "Yellow", "Red"]
durations = {"Green": 5, "Yellow": 2, "Red": 4}
timeline = []

# Simulate 10 time steps
time = 0
state = "Green"
counter = 0

while time <= 20:
    timeline.append((time, state))
    counter += 1
    if counter == durations[state]:
        counter = 0
        current_index = states.index(state)
        state = states[(current_index + 1) % len(states)]
    time += 1

for t, s in timeline:
    print(f"Time {t}: {s}")

Time 0: Green
Time 1: Green
Time 2: Green
Time 3: Green
Time 4: Green
Time 5: Yellow
Time 6: Yellow
Time 7: Red
Time 8: Red
Time 9: Red
Time 10: Red
Time 11: Green
Time 12: Green
Time 13: Green
Time 14: Green
Time 15: Green
Time 16: Yellow
Time 17: Yellow
Time 18: Red
Time 19: Red
Time 20: Red