Merge branch 'master' of https://git.wmi.amu.edu.pl/s444360/SI_2020

Jakub Damiński.md

@@ -0,0 +1,15 @@
+## Podprojekt: algorytm genetyczny
+### Jakub Damiński
+
+#### Opis problemu
+Metodą uczenia, którą postanowiłem zaimplementować w projekcie był algorytm genetyczny. Zastosowalem go, by znaleźć najszybszą ścieżkę, którą może podążyć wózek widłowy pomiędzy paczkami, by przejechać w sumie jak najkrótszy dystans.
+
+#### Metoda
+Pierwszym krokiem jest zbudowanie grafu z wagami w którym wierzchołkami są paczki, regały na które te paczki mają trafić oraz punkt startowy wózka, a wagi krawędzi to odległości między nimi. Ponieważ środowisko opiera się na 2-wymiarowej powierzchni, gdzie nie ma odizolowanych pól jest to graf pełny. Graf zapisany jest w 2-wymiarowej tablicy.
+
+Ponieważ wózek musi odwiedzić wszystkie paczki każde rozwiązanie tego problemu będzie permutacja zbioru tych paczek, przedstawiający, które paczki po kolei powinien wózek odwiedzić. Wartościowość takiego rozwiązania jest weryfikowana poprzez zsumowanie odległości jakie wózek musi przebyć do paczki oraz od paczki do jej wyznaczonego regału. 
+
+Wykorzystując algorytm genetyczny sprawimy, że spośród losowych permotacji zaczną wyłaniać się tej najbardziej efektywne, czyli te o najkrótszej ścieżce.
+
+#### Zasada działania
+...

agent.py

@@ -1,11 +1,17 @@
+from pandas.tests.io.json.test_ujson import numpy
+
 from warehouse import Coordinates, Tile, Pack
 from queue import PriorityQueue
-from math import sqrt
+from math import sqrt, ceil
 from attributes import TURN_LEFT_DIRECTIONS, TURN_RIGHT_DIRECTIONS, PackStatus
 import pygame
 import sys
 import pdb
+import numpy as np
 from package_location_classifier.classifier import PackageLocationClassifier
+from genetic_route import genetic_trace_route
+from siec import imgSkan, imageClass
+from keras.models import Sequential
 
 class Node:
 	def __init__(self, coord_x, coord_y, package=None, is_rack=False):
@@ -16,9 +22,11 @@ class Node:
 		self.is_rack = is_rack
 		self.g_cost = 0
 		self.h_cost = 0
+		self.graph_map = None
+
 	def __eq__(self, other):
 		if isinstance(other, Node):
-			return self.x == other.x and self.y == self.y
+			return self.x == other.x and self.y == other.y
 		return False
 
 	def __lt__(self, other):
@@ -27,42 +35,53 @@ class Node:
 	def __repr__(self):
 		return "Node:{}x{}".format(self.x, self.y)
 
+
 class Agent:
 	def __init__(self, start_x, start_y, assigned_warehouse, radius=5):
 		self.x = start_x
 		self.y = start_y
 		self.radius = radius
 		self.warehouse = assigned_warehouse
+		self.graph_map = np.zeros(((self.warehouse.no_of_packages * 2) + 1, (self.warehouse.no_of_packages * 2) + 1))
 		self.is_loaded = False
 		self.transported_package = None
 		self.direction = "up"
-		self.dest = Node(1, 1)
 		self.closed = list()
 		self.open = PriorityQueue()
 		self.path = list()
 		self.location_classifier = PackageLocationClassifier()
 		self.check_packages_locations()
+		self.route = []
+		self.destination = None
 
 	def check_packages_locations(self):
 		for pack in self.warehouse.packages:
 			if pack.lays_on_field.category.name in self.warehouse.storage_types:
 				can_place = self.location_classifier.check_if_can_place(pack, pack.lays_on_field)
-				pack.status = PackStatus.STORED if (can_place and pack.lays_on_field.capacity >= 0) else PackStatus.STORED_BAD_LOCATION
+				pack.status = PackStatus.STORED if (
+							can_place and pack.lays_on_field.capacity >= 0) else PackStatus.STORED_BAD_LOCATION
 
-
-	def find_path(self):
+	def find_path(self, *args, **kwargs):
 		self.closed = []
 		self.path = []
 		self.open = PriorityQueue()
+		if len(args) != 0:
+			if len(args) == 1:
+				start_node = Node(self.x, self.y)
+			else:
+				start_node = args[1]
+			self.destination = args[0]
+		else:
 			packages_to_go = [p for p in self.warehouse.packages if p.status != PackStatus.STORED]
 			if not packages_to_go and not self.transported_package:
 				return
 			if self.is_loaded:
+				print(self.transported_package)
 				rack = self.find_nearest_rack_for(self.transported_package)
-			self.dest = Node(rack.x_position, rack.y_position, is_rack=True)
+				self.destination = Node(rack.x_position, rack.y_position, is_rack=True)
 			else:
-			package = self.find_nearest_package()
-			self.dest = Node(package.lays_on_field.x_position, package.lays_on_field.y_position, package=package)
+				package = self.find_package()
+				self.destination = Node(package.lays_on_field.x_position, package.lays_on_field.y_position, package=package)
 
 			start_node = Node(self.x, self.y)
 
@@ -70,7 +89,7 @@ class Agent:
 		while self.open:
 			_, current_node = self.open.get()
 			self.closed.append(current_node)
-			if current_node.x == self.dest.x and current_node.y == self.dest.y:
+			if current_node.x == self.destination.x and current_node.y == self.destination.y:
 				while current_node.x != start_node.x or current_node.y != start_node.y:
 					self.path.append(current_node)
 					current_node = current_node.parent
@@ -86,7 +105,7 @@ class Agent:
 						neighbour.parent = current_node
 				else:
 					neighbour.g_cost = cost
-					neighbour.h_cost = self.heuristic(neighbour, self.dest)
+					neighbour.h_cost = self.heuristic(neighbour, self.destination)
 					neighbour.parent = current_node
 					self.open.put((neighbour.g_cost, neighbour))
 		return False
@@ -124,47 +143,43 @@ class Agent:
 		return neighbours
 
 	def move(self):
-		dest_coords = (self.dest.x, self.dest.y)
-		if not self.path:
-			if not self.find_path():
-				return
-		else:
-			next = self.path.pop()
+		if len(self.path) == 0:
+			self.find_path()
+		next_coord = self.path.pop()
 		star_dir = self.direction
-			if self.x > next.x and not self.direction == 'left':
+		if self.x > next_coord.x and not self.direction == 'left':
 			if self.direction == 'down':
 				self.turn_right()
 			else:
 				self.turn_left()
-			elif self.x < next.x and not self.direction == 'right':
+		elif self.x < next_coord.x and not self.direction == 'right':
 			if self.direction == 'down':
 				self.turn_left()
 			else:
 				self.turn_right()
-			elif self.y > next.y and not self.direction == 'up':
+		elif self.y > next_coord.y and not self.direction == 'up':
 			if self.direction == 'left':
 				self.turn_right()
 			else:
 				self.turn_left()
-			elif self.y < next.y and not self.direction == 'down':
+		elif self.y < next_coord.y and not self.direction == 'down':
 			if self.direction == 'right':
 				self.turn_right()
 			else:
 				self.turn_left()
-
-			if (next.x, next.y) == dest_coords:
-				if self.dest.package:
-					self.pick_up_package(self.dest.package)
+		if Node(next_coord.x, next_coord.y) == self.destination or Node(self.x, self.y) == self.destination:
+			if self.destination.package:
+				self.pick_up_package(self.destination.package)
 				return
-				elif self.dest.is_rack:
-					self.unload_package(self.dest)
+			elif self.destination.is_rack:
+				self.unload_package(self.destination)
 				return
 
 		if star_dir == self.direction:
-				self.x = next.x
-				self.y = next.y
+			self.x = next_coord.x
+			self.y = next_coord.y
 		else:
-				self.path.append(next)
+			self.path.append(next_coord)
 		self.closed = []
 
 	def check_if_can_move(self, next_coords: Coordinates):
@@ -173,29 +188,31 @@ class Agent:
 		if not tile_on_map:
 			return False
 		next_tile = self.warehouse.tiles[next_coords.x][next_coords.y]
-		if (next_coords.x, next_coords.y) != (self.dest.x, self.dest.y):
+		if (next_coords.x, next_coords.y) != (self.destination.x, self.destination.y):
 			tile_passable = isinstance(next_tile, Tile) and next_tile.category.passable
 		return tile_passable
 
-	def find_nearest_package(self):
-		packages_costs = []
-		start_node = Node(self.x, self.y)
-		if not self.warehouse.packages:
-			return None
-		for package in self.warehouse.packages:
-			if package.status == PackStatus.STORED:
-				continue
-			new_node = Node(package.lays_on_field.x_position, package.lays_on_field.y_position)
-			cost = self.heuristic(start_node, new_node)
-			if cost > 0:
-				packages_costs.append((package, cost))
-		if not packages_costs:
-			return
-			# pygame.quit()
-			# sys.exit()
+	def find_package(self):
+		if len(self.route) == 0:
+			pygame.quit()
+			sys.exit()
+		pack_id = self.route[0]
+		self.route = self.route[1:]
+		print("Next package ID:")
+		print(pack_id)
+		dst_package = None
+		for pack in self.warehouse.packages:
+			if pack.id + 1 == pack_id:
+				dst_package = pack
+				break
+		if dst_package is not None:
+			return dst_package
 	
-		package = min(packages_costs, key=lambda l: l[1])[0]
-		return package
+    nmodel = Sequential()
+	imageClass(nmodel)
+	nmodel.load_weights('model_weights.h5')
+
+	imgSkan()
     
 	def rack_heuristics(self, start, goal, can_place):
 		heur_can_place = not can_place
@@ -227,17 +244,17 @@ class Agent:
 			if cost > 0:
 				racks_costs.append((rack, cost))
 
-		rack = self.find_nearest_rack_for(package, expand_box + 1) if not racks_costs else min(racks_costs, key=lambda l: l[1])[0]
+		rack = self.find_nearest_rack_for(package, expand_box + 1) if not racks_costs else \
+		min(racks_costs, key=lambda l: l[1])[0]
 		return rack
 
-
 	def pick_up_package(self, pack):
 		self.warehouse.packages.remove(pack)
 		self.is_loaded = True
 		if pack.lays_on_field.category.name in ['Rack', 'Fridge']:
 			pack.lays_on_field.capacity += pack.size
 
-		self.dest.package = None
+		self.destination.package = None
 		pack.lays_on_field = None
 		self.transported_package = pack
 
@@ -250,4 +267,27 @@ class Agent:
 		pack.lays_on_field.capacity -= pack.size
 		pack.status = PackStatus.STORED
 		self.warehouse.packages.append(pack)
+
 	# print(tile.air_temperature, tile.humidity)
+
+	def create_graph_map(self):
+		for package1 in self.warehouse.packages:
+			rack = self.find_nearest_rack_for(package1)
+			for package2 in self.warehouse.packages:
+				self.find_path(Node(package2.x, package2.y), Node(rack.x_position, rack.y_position))
+				self.graph_map[package2.id + 1][package1.id + ceil((len(self.warehouse.packages) / 2)) + 1] = len(self.path)
+				self.graph_map[package1.id + ceil((len(self.warehouse.packages) / 2)) + 1][package2.id + 1] = len(self.path)
+				if package1 == package2:
+					continue
+				self.find_path(Node(package1.x, package1.y), Node(package2.x, package2.y))
+				self.graph_map[package1.id + 1][package2.id + 1] = len(self.path)
+			self.find_path(Node(package1.x, package1.y))
+			self.graph_map[package1.id + 1][0] = len(self.path)
+			self.graph_map[0][package1.id + 1] = len(self.path)
+
+	def trace_route(self):
+		for packs in self.warehouse.packages:
+			print(packs.id)
+		self.route = genetic_trace_route(self.graph_map, len(self.warehouse.packages))
+		print("best route")
+		print(self.route)

genetic_route.py

@@ -0,0 +1,98 @@
+import numpy as np
+from random import randrange, random
+from math import floor
+import copy
+
+num_of_surviving = 6
+num_of_couples = 8
+mutation_probability = 0.07
+max_population = 20
+iterations = 50
+
+# creates new random solution to add to population
+def create_new_route(points):
+    route = np.random.permutation(points)
+    route = [x + 1 for x in route]
+    return route
+
+# creates initian population
+def create_population(points):
+    population = []
+    for i in range(max_population):
+        population.append(create_new_route(points))
+    return population
+
+# gives score to a solution based on lenght
+def score_route(graph_map, route):
+    score = graph_map[0][route[0]]
+    for i in range(len(route) - 2):
+        rack = len(route) + route[0]
+        score = score + graph_map[rack][route[i + 1]]
+        score = score + graph_map[route[i + 1]][route[i + 2]]
+    return score
+
+# scores every solution in population
+def score_all(graph_map, population):
+    scores = []
+    for i in range(len(population)):
+        tmp = [i, score_route(graph_map, population[i])]
+        scores.append(tmp)
+    return scores
+
+# designed to create new population by mixing steps between most succesfull solutions
+def crossover(a, b):
+    new_a = copy.deepcopy(a)
+    new_b = copy.deepcopy(b)
+    for i in range(floor(len(a) / 2)):
+        rel = randrange(len(a))
+        tmp_a = new_a[rel]
+        tmp_b = new_b[rel]
+        if tmp_a == tmp_b:
+            continue
+        new_a[new_a.index(tmp_b)] = tmp_a
+        new_b[new_b.index(tmp_a)] = tmp_b
+        new_a[rel] = tmp_b
+        new_b[rel] = tmp_a
+    return new_a, new_b
+
+# adds randomness to newly created solutions
+def mutate(route):
+    new_route = copy.deepcopy(route)
+    for i in range(len(route) - 1):
+        if random() < mutation_probability:
+            tmp = new_route[i]
+            new_route[i] = new_route[i + 1]
+            new_route[i + 1] = tmp
+    return new_route
+
+# main function that iterate population until the best solutions emerge
+def genetic_trace_route(graph_map, packages):
+    population = create_population(packages)
+    for i in range(iterations):
+        new_population = []
+        scores = score_all(graph_map, population)
+        scores.sort(key=lambda x: x[1])
+# breeding
+        for j in range(0, num_of_couples, 2):
+            a, b = crossover(population[scores[j][0]], population[scores[j+1][0]])
+            new_population.append(a)
+            new_population.append(b)
+# mutations
+        for j in range(len(new_population)):
+            mutate(new_population[j])
+# survival
+        for j in range(0, num_of_surviving):
+            new_population.append(population[scores[j][0]])
+        # random new
+        for j in range(max_population - (num_of_surviving + num_of_couples)):
+            new_population.append(create_new_route(packages))
+        population.clear()
+        population = copy.deepcopy(new_population)
+        scores = score_all(graph_map, population)
+        scores.sort(key=lambda x: x[1])
+        print("Best route of all population in iteration " + str(i + 1))
+        print(scores[0][1])
+
+    scores = score_all(graph_map, population)
+    scores.sort(key=lambda x: x[1])
+    return population[scores[0][0]]

main.py

@@ -26,6 +26,7 @@ class MainGameFrame:
         pygame.display.set_caption("Smart ForkLift")
         agent_radius = int(TILE_WIDTH/2)
         self.agent_tex = pygame.image.load('forklift.png')
+        self.agent_tex2 = pygame.image.load('forklift_loaded.png')
         self.font = pygame.font.Font('freesansbold.ttf', 16)
         self.warehouse_map = warehouse.Warehouse(20, 20, 150, 10)
         starting_x, starting_y = self.set_starting_agent_position()
@@ -41,6 +42,9 @@ class MainGameFrame:
         print("wagi paczek: ",packs_sizes)
         print("pojemności regałów: ",racks_capacities)
         gen_alg(packs_sizes, racks_capacities, number_of_generations, generation_size, mutation_prob, amount_of_promotion, self.agent.location_classifier)
+        self.agent.create_graph_map()
+        self.agent.trace_route()
+        self.agent.find_path()
 
     def run(self):
         while True:
@@ -101,8 +105,15 @@ class MainGameFrame:
                 if cell.category.name in self.warehouse_map.storage_types:
                     text_surface = self.font.render(str(cell.capacity), True, (0, 0, 0))
                     self.display.blit(text_surface, ((cell.x_position * TILE_WIDTH) + 6, (cell.y_position * TILE_HEIGHT) + 6))
+        for package in self.warehouse_map.packages:
+            if package.status == PackStatus.LOOSE:
+                text_surface = self.font.render(str(package.id + 1), True, (0, 0, 0))
+                self.display.blit(text_surface, ((package.lays_on_field.x_position * TILE_WIDTH) + 6, (package.lays_on_field.y_position * TILE_HEIGHT) + 6))
 
     def draw_agent(self):
+        if self.agent.is_loaded:
+            rotated = pygame.transform.rotate(self.agent_tex2, DIRECTION_ANGLES.get(self.agent.direction))
+        else:
             rotated = pygame.transform.rotate(self.agent_tex, DIRECTION_ANGLES.get(self.agent.direction))
         self.display.blit(rotated, (self.agent.x*TILE_WIDTH, self.agent.y*TILE_WIDTH))
 

siec.py

@@ -0,0 +1,45 @@
+import numpy
+from keras.datasets import mnist
+from keras.layers import Conv2D, MaxPooling2D
+from keras.layers import Dense, Dropout, Flatten
+from keras.models import Sequential
+from keras.utils import np_utils
+from keras_preprocessing.image import load_img, img_to_array
+
+
+img_rows, img_cols = 28, 28
+input_shape = (img_rows, img_cols, 1)
+
+producent = []
+def imageClass(model):
+    model.add(Conv2D(75, kernel_size=(5, 5),
+                     activation='relu',
+                     input_shape=input_shape))
+    model.add(MaxPooling2D(pool_size=(2, 2)))
+    model.add(Dropout(0.2))
+    model.add(Conv2D(100, (5, 5), activation='relu'))
+    model.add(MaxPooling2D(pool_size=(2, 2)))
+    model.add(Dropout(0.2))
+    model.add(Flatten())
+    model.add(Dense(500, activation='relu'))
+    model.add(Dropout(0.5))
+    model.add(Dense(10, activation='softmax'))
+
+    model.compile(loss="categorical_crossentropy", optimizer="adam", metrics=["accuracy"])
+
+nmodel = Sequential()
+imageClass(nmodel)
+nmodel.load_weights('model_weights.h5')
+
+def imgSkan():
+    img_width, img_height = 28, 28
+    new_image = load_img('cyfra.png', target_size=(img_width, img_height), color_mode = "grayscale")
+    new_image = img_to_array(new_image)
+    new_image = new_image.reshape((1,) + new_image.shape)
+
+    prediction = nmodel.predict(new_image)
+    prediction = numpy.argmax(prediction)
+    print("Producent:", prediction)
+    producent.append(prediction)
+
+imgSkan()

sieci.md

@@ -38,6 +38,7 @@ fit() zdefiniowanego modelu
     model.add(Dense(500, activation='relu'))
     model.add(Dropout(0.5))
     model.add(Dense(10, activation='softmax'))
+ 
 ### Dołączam kolejno warstwy:
 - Conv2D - mnoży obrazek przez macierz 2x2
 - activation='relu' - zeruje negatywne wyniki (funkcja aktuwacji)
@@ -63,26 +64,22 @@ trenuję model za pomocą funkcji fit()
 # Integracja z projektem
 Tworzę model i ładuję wagi nauczonego modelu.
 
-    image_cl = Sequential()
-    ImageClass(image_cl)
-    image_cl.load_weights('model_weights.h5')
+    nmodel = Sequential()
+    imageClass(nmodel)
+    nmodel.load_weights('model_weights.h5')
     
 Po podniesieniu paczki odpalana jest funkcja imgSkan(), która z czytuje ręcznie napisaną cyfrę i wpisuje nr producenta paczki.
 
     def imgSkan():
-        img = files.upload()
-        !ls
-        img_path = '2.png'
-        img = image.load_img(img_path, target_size=(28, 28), color_mode = "grayscale")
-        plt.imshow(img.convert('RGBA'))
-        plt.show()
-        x = image.img_to_array(img)
-        x = np.expand_dims(x, axis=0)
-        x = 255 - x
-        x /= 255
-        prediction = model.predict(x)
-        prediction = np.argmax(prediction)
-        print("Cyfra:", prediction)
+        img_width, img_height = 28, 28
+        new_image = load_img('cyfra.png', target_size=(img_width, img_height), color_mode = "grayscale")
+        new_image = img_to_array(new_image)
+        new_image = new_image.reshape((1,) + new_image.shape)
+
+        prediction = nmodel.predict(new_image)
+        prediction = numpy.argmax(prediction)
+        print("Producent:", prediction)
+        producent.append(prediction)
         
         
 

sieci_n.py

@@ -1,14 +1,9 @@
-import numpy as np
+import numpy
 from keras.datasets import mnist
 from keras.models import Sequential
 from keras.layers import Dense, Dropout, Flatten
 from keras.layers import Conv2D, MaxPooling2D
 from keras.utils import np_utils
-from keras.preprocessing import image
-from matplotlib import pyplot as plt
-import matplotlib.pyplot as plt
-# %matplotlib inline
-from google.colab import files
 
 numpy.random.seed(42)
 
@@ -52,4 +47,5 @@ model.fit(X_train, Y_train, batch_size=200, epochs=10, validation_split=0.2, ver
 scores = model.evaluate(X_test, Y_test, verbose=0)
 print("Dokadnosc na testowanych dannych: %.2f%%" % (scores[1]*100))
 
+
 model.save_weights('model_weights.h5')

warehouse.py

@@ -242,6 +242,9 @@ class Warehouse:
             package_field = self.tiles[pack_x][pack_y]
             new_package = Pack(lays_on_field=package_field)
             new_package.size = new_package_size
+            new_package.id = i
+            new_package.x = pack_x
+            new_package.y = pack_y
             if package_field.category.name in self.storage_types:
                 package_field.capacity -= new_package.size
             packages.append(new_package)