crossover working version

AI_brain/genetic_algorytm.py

@@ -11,46 +11,127 @@ from domain.world import World
 from AI_brain.rotate_and_go_aStar import RotateAndGoAStar, State
 
 
-steps_distance_cashed = {}
+hits = 0
+misses = 0
+
+
+class Cashed_sub_paths(dict):
+    def __init__(self):
+        super().__init__()
+
+    def __missing__(self, key):
+        self[key] = Cashed_sub_paths()
+        return self[key]
+
+
+class Cashed_sub_path:
+    def __init__(self, sub_path: list[str] = [], distance: int = 0):
+        self.sub_path = sub_path
+        self.distance = distance
+
+
+steps_distance_cashed: dict[tuple[int, int], Cashed_sub_path] = Cashed_sub_paths()
 
 
 class Path:
     def __init__(self):
         self.walk = []
+        self.permutation = []
+        self.real_path = []
         self.distance = 0
 
     def random_walk(self, dusts: list[Entity]):
-        random_permutation = generate_random_permutation(len(dusts))
+        permutation = generate_random_permutation(len(dusts))
-        self.walk = addStopsForStopStation(
+        self.permutation = permutation
-            random_permutation, config.getint("CONSTANT", "BananaFilling")
+
+        self.walk = addStartAndStation(
+            permutation, config.getint("CONSTANT", "BananaFilling")
         )
 
     def calculate_distance(self, world: World):
         distance = 0
         for i in range(len(self.walk) - 1):
-            distance += self.step_distance(self.walk[i], self.walk[i + 1], world)
+            next_distance, next_real_path = self.step_distance(
+                self.walk[i], self.walk[i + 1], world
+            )
+            distance += next_distance
+
+            # BUG this part is not working and is not used, B.1 must be resolved
+            self.real_path = self.real_path + ["DEFAULT_ROTATION"] + next_real_path
+
         self.distance = distance
 
-    def step_distance(self, from_id: int, to_id: int, world: World) -> int:
+    def step_distance(
+        self, from_id: int, to_id: int, world: World
+    ) -> tuple[int, list[str]]:
+        global hits, misses
         if (from_id, to_id) in steps_distance_cashed:
-            return steps_distance_cashed[(from_id, to_id)]
+            hits += 1
+            distance = steps_distance_cashed[(from_id, to_id)].distance
+            sub_path = steps_distance_cashed[(from_id, to_id)].sub_path
+            return distance, sub_path
 
+        misses += 1
         path_searcher = RotateAndGoAStar(
             world,
-            self.getPosition(from_id, world.dustList, world.doc_station),
+            self.getPosition(from_id, world.dustList),
-            self.getPosition(to_id, world.dustList, world.doc_station),
+            self.getPosition(to_id, world.dustList),
         )
         path_searcher.search()
-        number_of_go = path_searcher.number_of_moves_forward()
-        steps_distance_cashed[(from_id, to_id)] = path_searcher.cost
-        steps_distance_cashed[(to_id, from_id)] = path_searcher.cost
-        return path_searcher.cost
 
-    def getPosition(self, number: int, dusts: list[Entity], station: Entity) -> State:
+        steps_distance_cashed[(from_id, to_id)] = Cashed_sub_path(
+            path_searcher.actions, path_searcher.cost
+        )
+
+        # BUG B.1 inverse path
+        inverse_sub_path = path_searcher.actions.copy()
+        steps_distance_cashed[(to_id, from_id)] = Cashed_sub_path(
+            inverse_sub_path, path_searcher.cost
+        )
+        return path_searcher.cost, path_searcher.actions
+
+    def inverse_sub_path(sub_path: list[str]) -> list[str]:
+        sub_path.reverse()
+        for command in sub_path:
+            command.replace("RL", "RR")
+            command.replace("RR", "RR")
+
+    def getPosition(
+        self,
+        number: int,
+        dustList: list[Entity],
+    ) -> State:
         if number == -1:
-            return State(station.x, station.y)
+            dock_start_x, dock_start_y = config.get(
+                "CONSTANT", "DockStationStartPosition"
+            ).split(",")
+            dock_start_x, dock_start_y = int(dock_start_x), int(dock_start_y)
 
-        return State(dusts[number].x, dusts[number].y)
+            return State(dock_start_x, dock_start_y)
+
+        if number == -2:
+            vacuum_start_x, vacuum_start_y = config.get(
+                "CONSTANT", "RobotStartPosition"
+            ).split(",")
+
+            vacuum_start_x, vacuum_start_y = int(vacuum_start_x), int(vacuum_start_y)
+            return State(vacuum_start_x, vacuum_start_y)
+
+        return State(dustList[number].x, dustList[number].y)
+
+    def get_real_path(self, world: World):
+        full_path = []
+
+        for index_place in range(len(self.walk) - 1):
+            path_searcher = RotateAndGoAStar(
+                world,
+                self.getPosition(self.walk[index_place], world.dustList),
+                self.getPosition(self.walk[index_place + 1], world.dustList),
+            )
+            path_searcher.search()
+            full_path = full_path + ["DEFAULT_ROTATION"] + path_searcher.actions
+
+        self.real_path = full_path
 
 
 def generate_random_permutation(n):
@@ -63,12 +144,104 @@ def generate_random_permutation(n):
     return numbers
 
 
-def addStopsForStopStation(permutation: list[int], bananaFilling: int):
+# BUG solution: inverse direction at the last step
+def addStartAndStation(permutation: list[int], bananaFilling: int):
     frequency = math.ceil(100 / bananaFilling)
     numer_of_stops = math.ceil(len(permutation) / frequency)
+    walk = permutation.copy()
 
     for i in range(1, numer_of_stops):
-        permutation.insert((frequency + 1) * i - 1, -1)
+        walk.insert((frequency + 1) * i - 1, -1)
-    permutation.insert(len(permutation), -1)
+    walk.insert(len(walk), -1)
+    walk.insert(0, -2)
 
-    return permutation
+    return walk
+
+
+class GeneticAlgorytm:
+    def __init__(self, world: World):
+        self.world = world
+        self.population_size = config.getint("GENETIC_ALGORITHM", "PopulationSize")
+        self.mutation_probability = config.getfloat(
+            "GENETIC_ALGORITHM", "MutationProbability"
+        )
+        self.iteration_number = config.getint("GENETIC_ALGORITHM", "IterationNumber")
+        self.descendants_number = config.getint(
+            "GENETIC_ALGORITHM", "DescendantsNumber"
+        )
+        self.dusts = world.dustList
+        self.doc_station = world.doc_station
+        self.paths: list[Path] = []
+        self.checked_permutations = {}
+
+        self.best_path = None
+        self.best_distance = math.inf
+        self.best_real_path = []
+
+    def generate_population(self):
+        for i in range(self.population_size):
+            path = Path()
+            path.random_walk(self.dusts)
+            self.checked_permutations[tuple(path.permutation)] = True
+            path.calculate_distance(self.world)
+            self.paths.append(path)
+
+    def evaluate_population(self):
+        self.paths.sort(key=lambda x: x.distance, reverse=False)
+
+        self.best_distance = self.paths[0].distance
+        self.best_path = self.paths[0]
+
+        for path in self.paths[self.population_size :]:
+            del self.checked_permutations[tuple(path.permutation)]
+
+        self.paths = self.paths[: self.population_size]
+
+    def create_child(self, parent1: Path, parent2: Path) -> Path:
+        child = Path()
+
+        child.permutation = parent1.permutation[: len(parent1.permutation) // 2]
+
+        # Add missing items from parent2 in the order they appear
+        for item in parent2.permutation:
+            if item not in child.permutation:
+                child.permutation.append(item)
+
+        child.walk = addStartAndStation(
+            child.permutation, config.getint("CONSTANT", "BananaFilling")
+        )
+
+        child.calculate_distance(self.world)
+
+        return child
+
+    def run(self):
+        self.generate_population()
+
+        for i in range(self.iteration_number):
+            self.crossover()
+            # self.mutate()
+
+        self.evaluate_population()
+        self.best_real_path = self.paths[0].get_real_path(self.world)
+
+        print(hits, (misses + hits))
+
+        print(hits / (misses + hits))
+
+    def crossover(self):
+        for i in range(self.descendants_number):
+            parent1 = self.paths[random.randint(0, self.population_size - 1)]
+
+            parent2 = self.paths[random.randint(0, self.population_size - 1)]
+
+            child = self.create_child(parent1, parent2)
+            while tuple(child.permutation) in self.checked_permutations:
+                parent1 = self.paths[random.randint(0, self.population_size - 1)]
+                parent2 = self.paths[random.randint(0, self.population_size - 1)]
+                child = self.create_child(parent1, parent2)
+
+            self.checked_permutations[tuple(child.permutation)] = True
+            self.paths.append(child)
+
+        self.evaluate_population()

config.ini

@@ -8,6 +8,9 @@ NumberOfBananas = 5
 NumberOfEarrings = 3
 NumberOfPlants = 5
 BananaFilling = 25
+RobotStartPosition = 1, 1
+DockStationStartPosition = 9, 8
+#9,8
 
 [NEURAL_NETWORK]
 is_neural_network_off = True
@@ -15,3 +18,9 @@ is_neural_network_off = True
 [AI_BRAIN]
 mode = full_clean 
 #accept: full_clean, to_station
+
+[GENETIC_ALGORITHM]
+PopulationSize = 20
+DescendantsNumber = 5
+MutationProbability = 0.1
+IterationNumber = 100

domain/world.py

@@ -8,7 +8,7 @@ class World:
         self.width = width
         self.height = height
         self.dust = [[[] for j in range(height)] for i in range(width)]
-        self.dustList = []
+        self.dustList: list[Entity] = []
         self.obstacles = [[[] for j in range(height)] for i in range(width)]
         self.entity = [[[] for j in range(height)] for i in range(width)]
 

main.py

@@ -16,7 +16,7 @@ from domain.entities.earring import Earring
 from domain.entities.docking_station import Doc_Station
 from domain.world import World
 from view.renderer import Renderer
-from AI_brain.genetic_algorytm import Path
+from AI_brain.genetic_algorytm import GeneticAlgorytm, Path
 
 if not config.getboolean("NEURAL_NETWORK", "is_neural_network_off"):
     from AI_brain.image_recognition import VacuumRecognizer
@@ -53,9 +53,6 @@ class Main:
     def run_robot(self):
         self.renderer.render(self.world)
 
-        # path_searcher = GoAnyDirectionBFS(self.world, start_state, end_state)
-        # path_searcher = RotateAndGoBFS(self.world, start_state, end_state)
-
         if config["AI_BRAIN"]["mode"] == "to_station":
             start_state = State(self.world.vacuum.x, self.world.vacuum.y)
             end_state = State(self.world.doc_station.x, self.world.doc_station.y)
@@ -67,13 +64,20 @@ class Main:
                 exit(0)
             print(path_searcher.actions)
             print(path_searcher.cost)
+            robot_actions = path_searcher.actions
+
         elif config["AI_BRAIN"]["mode"] == "full_clean":
-            x = Path()
+            genetic_searcher = GeneticAlgorytm(self.world)
-            x.random_walk(self.world.dustList)
+            genetic_searcher.run()
-            x.calculate_distance(self.world)
+
-            print(x.walk)
+            print(
-            print(x.distance)
+                str(genetic_searcher.best_path.walk)
-            exit(0)
+                + ": "
+                + str(genetic_searcher.best_distance)
+            )
+
+            robot_actions = genetic_searcher.best_path.real_path
+
         else:
             print("Wrong mode")
             exit(0)
@@ -83,8 +87,8 @@ class Main:
                 if event.type == pygame.QUIT:
                     self.running = False
 
-            if len(path_searcher.actions) > 0:
+            if len(robot_actions) > 0:
-                action_direction = path_searcher.actions.pop(0)
+                action_direction = robot_actions.pop(0)
                 # self.handle_action1(action_direction)
                 self.handle_action2(action_direction)
 
@@ -129,6 +133,8 @@ class Main:
                 self.world.vacuum.direction[1],
                 -self.world.vacuum.direction[0],
             )
+        elif action == "DEFAULT_ROTATION":
+            self.world.vacuum.direction = (1, 0)
 
     def process_input(self):
         for event in pygame.event.get():
@@ -163,8 +169,14 @@ class Main:
 def generate_world(tiles_x: int, tiles_y: int) -> World:
     if config.getboolean("NEURAL_NETWORK", "is_neural_network_off"):
         world = World(tiles_x, tiles_y)
-        world.vacuum = Vacuum(1, 1)
+
-        world.doc_station = Doc_Station(9, 8)
+        x, y = config.get("CONSTANT", "RobotStartPosition").split(",")
+        x, y = int(x), int(y)
+        world.vacuum = Vacuum(x, y)
+
+        x, y = config.get("CONSTANT", "DockStationStartPosition").split(",")
+        x, y = int(x), int(y)
+        world.doc_station = Doc_Station(x, y)
         if config.getboolean("APP", "cat"):
             world.cat = Cat(7, 8)
             world.add_entity(world.cat)
@@ -176,6 +188,8 @@ def generate_world(tiles_x: int, tiles_y: int) -> World:
         world.add_entity(Entity(3, 4, "PLANT2"))
         world.add_entity(Entity(8, 8, "PLANT2"))
         world.add_entity(Entity(9, 3, "PLANT3"))
+
+        numberOfEarrings = config.getint("CONSTANT", "NumberOfEarrings")
         world.add_entity(Earring(9, 7))
         world.add_entity(Earring(5, 5))
         world.add_entity(Earring(4, 6))