def run(self):
self._errors = []
Terminal.clear()
Terminal.print_box(messages=["Name: " + self._problem_instance._name],
font_color=FontColor.Yellow)
try:
print(f" Objective = {self._problem_instance.objective}")
except:
print("ERROR: " + self._problem_instance.objective)
self._errors.append()
print(
f" Multi-objective = {self._problem_instance.is_multi_objective}")
print(f" Encoding Rule = {self._problem_instance.encoding_rule }")
self._build_solution()
self._is_admissible()
self._evaluate()
def update(self):
state = self._algorithm.get_state()
# {
# "problem" : self._problem_instance,
# "iteration" : self._iteration,
# "message" : message,
# "solution" : self._solution,
# "neighbor" : self._neighbor
# }
message = ""
if "message" in state: message = state["message"]
# started
if message == LocalSearchMessage.Started:
Terminal.clear()
Terminal.print_box(
messages=[self._algorithm.name, self._algorithm.description],
font_color=FontColor.Green)
Terminal.print_box(
messages=["Problem: " + self._algorithm.problem.name],
font_color=FontColor.Yellow)
# initialized
elif message == LocalSearchMessage.Initialized:
Terminal.print_box(messages=["Initialized"])
Terminal.print_line(message="Initial Solution:")
print(
f" Solution: {self._algorithm.solution.representation} - fitness: {self._algorithm.solution.fitness}"
)
Terminal.print_box(messages=["Iterations"])
elif message == LocalSearchMessage.ReplacementAccepted:
iteration = -1
if "iteration" in state:
iteration = state["iteration"]
Terminal.print_line(
message=
f"Iteration {iteration:10d} | Solution: {self._algorithm.solution.representation } | Fitness: {self._algorithm.solution.fitness}"
)
elif message == LocalSearchMessage.ReplacementRejected:
iteration = -1
if "iteration" in state:
iteration = state["iteration"]
Terminal.print_line(
message=
f"Iteration {iteration:10d} | Solution: {self._algorithm.solution.representation } | Fitness: {self._algorithm.solution.fitness} *** (no change)"
)
elif message == LocalSearchMessage.StoppedPrematurely:
Terminal.print_box(messages=["Stopped Prematurely!"],
font_color=FontColor.Yellow)
elif message == LocalSearchMessage.Stopped:
Terminal.print_box(messages=["Stopped Max Iterations!"])
elif message == LocalSearchMessage.StoppedTargetAchieved:
Terminal.print_box(messages=["Stopped Target Achieved!"],
font_color=FontColor.Green)