main (#1)

Reviewed-on: #1
Co-authored-by: Daniel Dolezal <d.dolezal97@protonmail.com>
Co-committed-by: Daniel Dolezal <d.dolezal97@protonmail.com>

.gitignore

@@ -6,3 +6,4 @@
 .venv/
 __pycache__/
 data/
+.env

config.py

@@ -1,6 +0,0 @@
-from snakes.DummSnake import DummSnake
-from snakes.LogicSnake import LogicSnake
-from snakes.AStarSnake import AStarSnake
-from snakes.MasterSnake import MasterSnake
-
-SNAKE = MasterSnake()

main.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # Welcome to
 # __________         __    __  .__                               __
 # \______   \_____ _/  |__/  |_|  |   ____   ______ ____ _____  |  | __ ____
@@ -10,54 +12,26 @@
 # To get you started we've included code to prevent your Battlesnake from moving backwards.
 # For more info see docs.battlesnake.com
 
-from server.Files import read_file, save_file
-from server.GameStorage import GameStorage
-from config import SNAKE
+from server.SnakeBuilder import SnakeBuilder
+from server.Server import Server
 
-from datetime import datetime
-import typing
-import json, os
-
-# info is called when you create your Battlesnake on play.battlesnake.com
-# and controls your Battlesnake's appearance
-# TIP: If you open your Battlesnake URL in a browser you should see this data
-game_state_storage = GameStorage(SNAKE.__class__.__name__)
-
-def info() -> typing.Dict:
-    CONFIG_PATH = os.path.join(os.path.dirname(__file__), 'data', 'snake-config.json')
-    snake = read_file(CONFIG_PATH, json.load)
-    if not snake:
-        snake = {"apiversion":"1","author":"","color":"#888888","head":"default","tail":"default"}
-        save_file(CONFIG_PATH, snake, callback=json.dump, indent=2, ensure_ascii=False)
-        print("INFO", snake)
-        return snake
-
-    print("INFO Snake:", snake)
-    return snake
-
-# start is called when your Battlesnake begins a game
-def start(game_state: typing.Dict):
-    game_state_storage.start_new_game(game_state["game"], game_state["board"], game_state["you"])
-    SNAKE.clear_history()
-    print("GAME START:", game_state["game"])
-
-# move is called when your Battlesnake game is running game
-def move(game_state: typing.Dict) -> typing.Dict:
-    next_move = SNAKE.choose_move(game_state)
-    game_state_storage.add_moves(game_state["board"], next_move)
-    print("MOVE:", f"{next_move},", "Me:", {"body": game_state["you"]["body"], "head": game_state["you"]["head"], "length": game_state["you"]["length"]})
-    return {"move": next_move}
-
-# end is called when your Battlesnake finishes a game
-def end(game_state: typing.Dict):
-    HISTORY_PATH = os.path.join(os.path.dirname(__file__), 'data', 'history')
-
-    game_state_storage.add_end_state(game_state["board"], SNAKE.get_history())
-    game_state_storage.save(os.path.join(HISTORY_PATH, f"{SNAKE.__class__.__name__}_{datetime.now().strftime('%d.%m.%Y_%H%M%S')}_{game_state['game']['id']}.json"), callback=json.dump, indent=2, ensure_ascii=False)
-
-    print("GAME OVER\n")
+from dotenv import load_dotenv, find_dotenv
+import os
 
 # Start server when `python main.py` is run
 if __name__ == "__main__":
-    from server.server import run_server
-    run_server({"info": info, "start": start, "move": move, "end": end})
+    load_dotenv(find_dotenv())
+
+    server = Server(
+        data_path=os.path.dirname(__file__),
+        snake=SnakeBuilder.build(os.environ.get("SNAKE", "DummSnake")),
+    )
+
+    if os.environ.get("STORE_GAME_HISTORY", None):
+        server.enable_store_game_state()
+
+    server.run(
+        host=os.environ.get("HOST", "0.0.0.0"),
+        port=int(os.environ.get("PORT", "8000")),
+        debug=bool(os.environ.get("DEBUG", False))
+    )

requirements.txt

@@ -5,5 +5,6 @@ itsdangerous==2.1.2
 Jinja2==3.1.3
 MarkupSafe==2.1.5
 numpy==1.26.4
+python-dotenv==1.0.1
 scipy==1.12.0
 Werkzeug==3.0.1

server/GameStorage.py

@@ -1,8 +1,10 @@
 from server.Files import save_file
+import os
 
 class GameStorage:
-  def __init__(self, snake:str):
+  def __init__(self, snake:str, path:str):
     self.snake_type = snake
+    self.folder = path
 
   def start_new_game(self, game_type:dict, game_board:dict, snake:dict):
     self.game_type = game_type
@@ -18,8 +20,14 @@ class GameStorage:
     self.game_board.append(game_board)
     self.snake_history = snake_history_state
 
+  def set_winner_snake_name(self, snakes:list[dict]):
+    if self.start_position["id"] in [ x["id"] for x in snakes]:
+      self.winner_snake_names = "me"
+    else:
+      self.winner_snake_names = [ x["name"] for x in snakes]
+
   def save(self, path:str, callback=None, **kwargs):
-    save_file(path, {
+    save_file(os.path.join(self.folder, path), {
       "snake": {
         "type": self.snake_type,
         "choices": self.snake_history,
@@ -29,5 +37,6 @@ class GameStorage:
         "snake_start": self.start_position,
         "gameboard": self.game_board,
         "my_moves": self.moves,
-      }
+      },
+      "winner": self.winner_snake_names,
     }, callback=callback, **kwargs)

server/Server.py

@@ -0,0 +1,103 @@
+from server.Files import read_file, save_file
+from server.GameStorage import GameStorage
+from snakes.TemplateSnake import TemplateSnake
+
+from datetime import datetime
+from flask import Flask
+from flask import request
+import logging, json, os
+
+class Server:
+  default_snake_config = {"apiversion":"1","author":"","color":"#888888","head":"default","tail":"default"}
+
+  def __init__(self, data_path:str, snake:TemplateSnake, debug:bool=False):
+    self.debug = debug
+    self.snake = snake
+
+    self.config_file = os.path.join(data_path, 'data', 'snake-config.json')
+    self.game_state_storage = GameStorage(snake.__class__.__name__, path=os.path.join(data_path, 'data', 'history'))
+    self.store_game_state = False
+
+    self.app = Flask("Battlesnake")
+
+    @self.app.get("/")
+    def on_info():
+      return self._info()
+
+    @self.app.post("/start")
+    def on_start():
+      game_state = request.get_json()
+      self._start(game_state)
+      return "ok"
+
+    @self.app.post("/move")
+    def on_move():
+      game_state = request.get_json()
+      return self._move(game_state)
+
+    @self.app.post("/end")
+    def on_end():
+      game_state = request.get_json()
+      self._end(game_state)
+      return "ok"
+
+    @self.app.after_request
+    def identify_server(response):
+      response.headers.set(
+        "server", "battlesnake/github/starter-snake-python"
+      )
+      return response
+
+  def run(self, host:str="0.0.0.0", port:str="8000", debug:bool=False):
+    logging.getLogger("werkzeug").setLevel(logging.ERROR)
+
+    print(f"\nRunning Battlesnake at http://{host}:{port} with the {self.snake.__class__.__name__.replace('Snake', '')} Snake")
+    self.app.run(host=host, port=port, debug=debug)
+
+  def _read_json_config_or_create(self):
+    snake_config = read_file(self.config_file, json.load)
+    if not snake_config:
+      snake_config = self.default_snake_config
+      save_file(self.config_file, snake_config, callback=json.dump, indent=2, ensure_ascii=False)
+    return snake_config
+
+  def enable_store_game_state(self):
+    self.store_game_state = True
+
+  # info is called when you create your Battlesnake on play.battlesnake.com
+  # and controls your Battlesnake's appearance
+  # TIP: If you open your Battlesnake URL in a browser you should see this data
+  def _info(self) -> dict:
+    snake_config = self._read_json_config_or_create()
+    print("INFO Snake:", snake_config)
+    return snake_config
+
+  # start is called when your Battlesnake begins a game
+  def _start(self, game_state:dict):
+    if self.store_game_state:
+      self.game_state_storage.start_new_game(game_state["game"], game_state["board"], game_state["you"])
+
+    self.snake.clear_history()
+    print("GAME START:", game_state["game"])
+
+  # move is called when your Battlesnake game is running game
+  def _move(self, game_state:dict) -> dict:
+    next_move = self.snake.choose_move(game_state)
+
+    if self.store_game_state:
+      self.game_state_storage.add_moves(game_state["board"], next_move)
+
+    print("MOVE:", f"{next_move:5},", "Me:", {"head": game_state["you"]["head"], "length": game_state["you"]["length"]})
+    return {"move": next_move}
+
+  # end is called when your Battlesnake finishes a game
+  def _end(self, game_state:dict):
+    if self.store_game_state:
+      self.game_state_storage.add_end_state(game_state["board"], self.snake.get_history())
+      self.game_state_storage.set_winner_snake_name(game_state["board"]['snakes'])
+      self.game_state_storage.save(
+        f"{self.snake.__class__.__name__}_{datetime.now().strftime('%d.%m.%Y_%H%M%S')}_{game_state['game']['id']}.json",
+        callback=json.dump, indent=2, ensure_ascii=False
+      )
+
+    print("GAME OVER:\n- Winner is", [ x["name"] for x in game_state["board"]['snakes']])

server/SnakeBuilder.py

@@ -0,0 +1,7 @@
+
+class SnakeBuilder:
+  @classmethod
+  def build(self, selected_snake:str):
+    snake_module = __import__(f'snakes.{selected_snake}', fromlist=[selected_snake])
+    snake_class = getattr(snake_module, selected_snake)
+    return snake_class()

server/server.py

@@ -1,45 +0,0 @@
-import logging
-import os
-import typing
-
-from flask import Flask
-from flask import request
-
-def run_server(handlers: typing.Dict):
-    app = Flask("Battlesnake")
-
-    @app.get("/")
-    def on_info():
-        return handlers["info"]()
-
-    @app.post("/start")
-    def on_start():
-        game_state = request.get_json()
-        handlers["start"](game_state)
-        return "ok"
-
-    @app.post("/move")
-    def on_move():
-        game_state = request.get_json()
-        return handlers["move"](game_state)
-
-    @app.post("/end")
-    def on_end():
-        game_state = request.get_json()
-        handlers["end"](game_state)
-        return "ok"
-
-    @app.after_request
-    def identify_server(response):
-        response.headers.set(
-            "server", "battlesnake/github/starter-snake-python"
-        )
-        return response
-
-    host = "0.0.0.0"
-    port = int(os.environ.get("PORT", "8000"))
-
-    logging.getLogger("werkzeug").setLevel(logging.ERROR)
-
-    print(f"\nRunning Battlesnake at http://{host}:{port}")
-    app.run(host=host, port=port)

snakes/MasterSnake.py

@@ -4,6 +4,13 @@ class MasterSnake(TemplateSnake):
     def __init__(self):
         super().__init__()
         self.name = "MasterSnake"
+        self.disabled_find_near_by_food = True
+
+    def is_food_nearby(self, head, food_positions):
+        for food in food_positions:
+            if abs(head['x'] - food['x']) <= 1 and abs(head['y'] - food['y']) <= 1:
+                return True
+        return False
 
     def avoid_snake_body(self, snakes, board_width, board_height):
         # Konvertiere die Körperpositionen der Schlangen in ein Set von Tupeln für schnellen Zugriff
@@ -37,22 +44,38 @@ class MasterSnake(TemplateSnake):
 
         # Finde die nächstgelegene Nahrungsquelle, wenn Nahrung vorhanden ist
         try:
+            if self.is_food_nearby(my_head, game_data['board']['food']) or self.disabled_find_near_by_food:
                 path_to_food = self.find_path_to_food(game_data)
                 if path_to_food:
                     # Implementiere Logik, um in Richtung der Nahrungsquelle zu bewegen, falls sicher
-                move = self.move_towards_food(my_head, path_to_food[0], safe_positions)
+                    move = self.move_towards(my_head, path_to_food[0], safe_positions)
+                    self.add_to_history({"my_head": my_head, "path_to_food": path_to_food, "move": move})
                 else:
                     # Einfache Logik, um eine Bewegungsrichtung zu wählen, wenn keine Nahrung vorhanden ist
                     move = self.find_direction(my_head, safe_positions)
+                    self.add_to_history({"my_head": my_head, "move": move})
+            else:
+                # Wenn keine Nahrung in der Nähe ist, bewege dich in eine Richtung, die dich nahe an deinem eigenen Körper hält
+                move = self.find_direction(my_head, safe_positions)
+                self.add_to_history({"my_head": my_head, "move": move})
         except ValueError:
             move = self.find_direction(my_head, safe_positions)
+            self.add_to_history({"my_head": my_head, "move": move})
+
+        # Finde den größten sicheren Bereich
+        max_area_start, max_area = self.flood_fill(my_head, safe_positions)
+        # Wenn der Schwanz der Schlange im größten sicheren Bereich liegt, bewege dich in Richtung des Schwanzes
+        my_tail = (my_snake['body'][-1]['x'], my_snake['body'][-1]['y'])  # Convert to tuple
+        if my_tail in max_area:
+            move = self.move_towards(my_head, my_tail, safe_positions)
 
         # Überprüfe zukünftige Bewegungen, um Sackgassen zu vermeiden
-        move = self.avoid_dead_ends(my_head, move, safe_positions, board_width, board_height, snakes)
+        move = self.avoid_dead_ends(my_head, move, safe_positions, snakes)
+        self.add_to_history({"my_head": my_head, "move": move})
 
         return move
 
-    def move_towards_food(self, head, food, safe_positions):
+    def move_towards(self, head, target, safe_positions):
         directions = {'up': (0, 1), 'down': (0, -1), 'left': (-1, 0), 'right': (1, 0)}
         best_direction = None
         min_distance = float('inf')
@@ -62,7 +85,7 @@ class MasterSnake(TemplateSnake):
         for direction, (dx, dy) in directions.items():
             next_position = {'x': head['x'] + dx, 'y': head['y'] + dy}
             if next_position in safe_positions:
-                distance = abs(food[0] - next_position['x']) + abs(food[1] - next_position['y'])
+                distance = abs(target[0] - next_position['x']) + abs(target[1] - next_position['y'])
                 distance_to_body = sum(abs(part[0] - next_position['x']) + abs(part[1] - next_position['y']) for part in body_positions)
                 if distance < min_distance or (distance == min_distance and distance_to_body < min_distance_to_body):
                     best_direction = direction
@@ -150,16 +173,21 @@ class MasterSnake(TemplateSnake):
                 return direction
         return "up"  # Standardbewegung, falls keine sichere Position gefunden wird
 
-    def avoid_dead_ends(self, head, move, safe_positions, board_width, board_height, snakes):
+    def avoid_self_collision(self, future_head, body_positions):
+        # Überprüft, ob die zukünftige Kopfposition im Körper der Schlange liegt
+        return (future_head['x'], future_head['y']) not in body_positions
+
+    def avoid_dead_ends(self, head, move, safe_positions, snakes):
         directions = {'up': (0, 1), 'down': (0, -1), 'left': (-1, 0), 'right': (1, 0)}
         dx, dy = directions[move]
         future_head = {'x': head['x'] + dx, 'y': head['y'] + dy}
+        body_positions = set((part['x'], part['y']) for part in snakes[0]['body'])
 
-        if not self.is_future_move_safe(future_head, safe_positions, board_width, board_height, snakes):
+        if not self.is_future_move_safe(future_head, safe_positions, snakes) or not self.avoid_self_collision(future_head, body_positions):
             for alternative_move in directions.keys():
                 dx, dy = directions[alternative_move]
                 alternative_future_head = {'x': head['x'] + dx, 'y': head['y'] + dy}
-                if self.is_future_move_safe(alternative_future_head, safe_positions, board_width, board_height, snakes):
+                if self.is_future_move_safe(alternative_future_head, safe_positions, snakes) and self.avoid_self_collision(alternative_future_head, body_positions):
                     return alternative_move
         return move
 
@@ -171,7 +199,7 @@ class MasterSnake(TemplateSnake):
                 future_body_positions.add((part['x'], part['y']))
         return future_body_positions
 
-    def is_future_move_safe(self, future_head, safe_positions, board_width, board_height, snakes):
+    def is_future_move_safe(self, future_head, safe_positions, snakes):
         # Simuliere die Bewegung der Schlange und aktualisiere die Positionen des eigenen Körpers
         future_body_positions = self.simulate_snake_movement(snakes)
         # Konvertiere safe_positions in ein Set von Tupeln für den Flood Fill Algorithmus
@@ -181,5 +209,38 @@ class MasterSnake(TemplateSnake):
         # Füge die zukünftige Kopfposition hinzu, um sie als Startpunkt zu verwenden
         safe_positions_set.add((future_head['x'], future_head['y']))
         # Berechne die Anzahl der erreichbaren sicheren Positionen von der zukünftigen Kopfposition aus
+        reachable_positions = self.flood_fill((future_head['x'], future_head['y']), safe_positions_set)
         # Entscheide, ob die Bewegung sicher ist, basierend auf der Anzahl der erreichbaren Positionen
-        return safe_positions_set  # oder wähle einen anderen Schwellenwert
+
+        fill_bool = len(reachable_positions) > len(safe_positions_set) * 0.25
+        if fill_bool:
+            return fill_bool
+
+        return len(safe_positions_set) >= len(snakes[0]['body'])
+
+    def flood_fill(self, start, safe_positions):
+        stack = [start]
+        visited = set()
+        max_area = 0
+        max_area_start = None
+
+        while stack:
+            position = stack.pop()
+            if isinstance(position, dict):
+                position = tuple(position.values())
+            else:
+                position = tuple(position)
+
+            if position not in visited:
+                visited.add(position)
+                for dx, dy in [(-1, 0), (1, 0), (0, -1), (0, 1)]:  # links, rechts, oben, unten
+                    next_position = tuple([position[0] + dx, position[1] + dy])
+                    if next_position in safe_positions:
+                        stack.append(next_position)
+
+                # Überprüfe, ob der aktuelle Bereich größer ist als der bisher größte Bereich
+                if len(visited) > max_area:
+                    max_area = len(visited)
+                    max_area_start = position
+
+        return max_area_start, visited

snakes/MasterSnake_FoodBySpace.py

@@ -0,0 +1,256 @@
+from snakes.TemplateSnake import TemplateSnake
+
+class MasterSnake(TemplateSnake):
+    def __init__(self):
+        super().__init__()
+        self.name = "MasterSnake"
+        self.history_head = []
+
+    def avoid_snake_body(self, snakes, board_width, board_height):
+        # Konvertiere die Körperpositionen der Schlangen in ein Set von Tupeln für schnellen Zugriff
+        body_positions = set()
+        for snake in snakes:
+            for part in snake['body']:
+                body_positions.add((part['x'], part['y']))
+
+        # Implementiere die Logik, um Positionen zu finden, die nicht von Schlangenkörpern belegt sind
+        safe_positions = self.find_safe_positions(body_positions, board_width, board_height)
+        return safe_positions
+
+    def find_safe_positions(self, body_positions, board_width, board_height):
+        # Finde sichere Positionen basierend auf den Körperpositionen und der Größe des Spielbretts
+        safe_positions = []
+        for x in range(board_width):  # Nutze die tatsächliche Breite des Spielbretts
+            for y in range(board_height):  # Nutze die tatsächliche Höhe des Spielbretts
+                if (x, y) not in body_positions:
+                    safe_positions.append({'x': x, 'y': y})
+        return safe_positions
+
+    def choose_move(self, game_data):
+        board_width = game_data['board']['width']
+        board_height = game_data['board']['height']
+        snakes = game_data['board']['snakes']
+        my_snake = game_data['you']
+        my_head = my_snake['head']
+
+        # Vermeide Schlangenkörper
+        safe_positions = self.avoid_snake_body(snakes, board_width, board_height)
+
+        # Wähle Nahrung basierend auf verfügbarem Platz
+        try:
+            chosen_food = self.choose_food_based_on_space(game_data)
+            if chosen_food:
+                path_to_food = self.a_star_search(my_head, chosen_food, self.get_obstacles(game_data), board_width, board_height)
+                if path_to_food:
+                    # Implementiere Logik, um in Richtung der Nahrungsquelle zu bewegen, falls sicher
+                    move = self.move_towards_food(my_head, path_to_food[0], safe_positions)
+                    self.add_to_history({"my_head": my_head, "path_to_food": path_to_food, "move": move})
+                else:
+                    # Einfache Logik, um eine Bewegungsrichtung zu wählen, wenn kein Pfad zur Nahrung vorhanden ist
+                    move = self.find_direction(my_head, safe_positions)
+                    self.add_to_history({"my_head": my_head, "move": move})
+            else:
+                # Einfache Logik, um eine Bewegungsrichtung zu wählen, wenn keine geeignete Nahrung gefunden wird
+                move = self.find_direction(my_head, safe_positions)
+                self.add_to_history({"my_head": my_head, "move": move})
+        except ValueError:
+            move = self.find_direction(my_head, safe_positions)
+            self.add_to_history({"my_head": my_head, "move": move})
+
+        # Überprüfe zukünftige Bewegungen, um Sackgassen zu vermeiden
+        move = self.avoid_dead_ends_and_circles(my_head, move, safe_positions, board_width, board_height, snakes)
+        self.add_to_history({"my_head": my_head, "move": move})
+        self.add_to_history_head({"my_head": my_head, "move": move})
+
+        return move
+
+    def move_towards_food(self, head, food, safe_positions):
+        directions = {'up': (0, 1), 'down': (0, -1), 'left': (-1, 0), 'right': (1, 0)}
+        best_direction = None
+        min_distance = float('inf')
+        min_distance_to_body = float('inf')
+        body_positions = set((pos['x'], pos['y']) for pos in safe_positions[:-1])  # Exclude the head from body positions
+
+        for direction, (dx, dy) in directions.items():
+            next_position = {'x': head['x'] + dx, 'y': head['y'] + dy}
+            if next_position in safe_positions:
+                distance = abs(food[0] - next_position['x']) + abs(food[1] - next_position['y'])
+                distance_to_body = sum(abs(part[0] - next_position['x']) + abs(part[1] - next_position['y']) for part in body_positions)
+                if distance < min_distance or (distance == min_distance and distance_to_body < min_distance_to_body):
+                    best_direction = direction
+                    min_distance = distance
+                    min_distance_to_body = distance_to_body
+
+        return best_direction if best_direction else "up"  # Default to moving up if no safe direction found
+
+    def find_path_to_food(self, game_data):
+        my_head = game_data['you']['head']
+        food_positions = game_data['board']['food']
+        snakes = game_data['board']['snakes']
+        board_width = game_data['board']['width']
+        board_height = game_data['board']['height']
+        
+        # Exclude own snake's body from obstacles
+        own_snake_body = game_data['you']['body']
+        obstacles = set((part['x'], part['y']) for part in own_snake_body)
+        
+        for snake in snakes:
+            if snake['id'] != game_data['you']['id']:
+                for part in snake['body']:
+                    obstacles.add((part['x'], part['y']))
+        
+        # Choose the closest food source based on the heuristic
+        closest_food = min(food_positions, key=lambda food: abs(food['x'] - my_head['x']) + abs(food['y'] - my_head['y']))
+        
+        # Use A* to search for a safe path
+        path = self.a_star_search(my_head, closest_food, obstacles, board_width, board_height)
+        return path
+
+    def choose_food_based_on_space(self, game_data):
+        my_head = game_data['you']['head']
+        food_positions = game_data['board']['food']
+        snakes = game_data['board']['snakes']
+        board_width = game_data['board']['width']
+        board_height = game_data['board']['height']
+        my_length = game_data['you']['length']
+
+        # Sortiere die Nahrungsquellen basierend auf ihrer Entfernung
+        sorted_food = sorted(food_positions, key=lambda food: abs(food['x'] - my_head['x']) + abs(food['y'] - my_head['y']))
+
+        for food in sorted_food:
+            path = self.a_star_search(my_head, food, self.get_obstacles(game_data), board_width, board_height)
+            if path and self.will_fit_in_space(path, my_length, board_width, board_height):
+                return food  # Diese Nahrung ist erreichbar und es gibt genug Platz
+
+        # Wenn keine geeignete Nahrung gefunden wird, gib ein Standard-Nahrungsobjekt zurück oder löse eine Ausnahme aus
+        if food_positions:
+            return food_positions[0]  # Gib das erste Nahrungsobjekt zurück
+        else:
+            raise ValueError("Keine Nahrung gefunden")  # Oder löse eine Ausnahme aus
+
+    def will_fit_in_space(self, path, snake_length, board_width, board_height):
+        # Überprüfe, ob die Länge des Pfades größer oder gleich der Länge der Schlange ist
+        if len(path) >= snake_length:
+            return True
+
+        # Überprüfe, ob es genügend Platz um den Endpunkt des Pfades gibt
+        end_of_path = path[-1]
+        space_count = self.count_space_around(end_of_path, board_width, board_height)
+        return space_count >= snake_length
+
+    def count_space_around(self, position, board_width, board_height):
+        # Zähle die Anzahl der erreichbaren Positionen um einen Punkt herum
+        x, y = position
+        count = 0
+        for dx in [-1, 0, 1]:
+            for dy in [-1, 0, 1]:
+                if (dx != 0 or dy != 0) and 0 <= x + dx < board_width and 0 <= y + dy < board_height:
+                    count += 1
+        return count
+
+    def get_obstacles(self, game_data):
+        # Erstelle ein Set von Hindernissen für die A* Suche
+        obstacles = set()
+        for snake in game_data['board']['snakes']:
+            for part in snake['body']:
+                obstacles.add((part['x'], part['y']))
+        return obstacles
+
+    def a_star_search(self, start, goal, obstacles, board_width, board_height):
+        # Convert snake positions into a set of obstacles
+        # Helper functions
+        def is_position_safe(position):
+            x, y = position
+            return 0 <= x < board_width and 0 <= y < board_height and position not in obstacles
+
+        def get_neighbors(position):
+            x, y = position
+            return [(nx, ny) for nx, ny in [(x-1, y), (x+1, y), (x, y-1), (x, y+1)] if is_position_safe((nx, ny))]
+
+        def heuristic(position, goal):
+            return abs(position[0] - goal[0]) + abs(position[1] - goal[1])
+
+        # Initialize start and goal positions
+        start = (start['x'], start['y'])
+        goal = (goal['x'], goal['y'])
+
+        # Initialize the open and closed list
+        open_set = set([start])
+        came_from = {}
+        g_score = {start: 0}
+        f_score = {start: heuristic(start, goal)}
+
+        while open_set:
+            current = min(open_set, key=lambda pos: f_score.get(pos, float('inf')))
+            if current == goal:
+                # Reconstruct the path
+                path = []
+                while current in came_from:
+                    path.append(current)
+                    current = came_from[current]
+                path.reverse()
+                return path  # Return the path as a list of tuples
+
+            open_set.remove(current)
+            for neighbor in get_neighbors(current):
+                tentative_g_score = g_score[current] + 1  # Distance between neighbors is always 1
+                if tentative_g_score < g_score.get(neighbor, float('inf')):
+                    came_from[neighbor] = current
+                    g_score[neighbor] = tentative_g_score
+                    f_score[neighbor] = g_score[neighbor] + heuristic(neighbor, goal)
+                    if neighbor not in open_set:
+                        open_set.add(neighbor)
+
+        return None  # Kein Pfad gefunden
+
+    def find_direction(self, head, safe_positions):
+        # Beispielhafte Logik zur Auswahl einer Bewegungsrichtung
+        directions = {'up': (0, 1), 'down': (0, -1), 'left': (-1, 0), 'right': (1, 0)}
+        for direction, (dx, dy) in directions.items():
+            next_position = {'x': head['x'] + dx, 'y': head['y'] + dy}
+            if next_position in safe_positions:
+                return direction
+        return "up"  # Standardbewegung, falls keine sichere Position gefunden wird
+
+    def is_in_history(self, future_head):
+        # Überprüfe, ob die zukünftige Kopfposition in den letzten N Bewegungen vorkommt
+        return any(future_head == move_data["my_head"] for move_data in self.history_head[-10:])
+
+    def avoid_dead_ends_and_circles(self, head, move, safe_positions, board_width, board_height, snakes):
+        directions = {'up': (0, 1), 'down': (0, -1), 'left': (-1, 0), 'right': (1, 0)}
+        dx, dy = directions[move]
+        future_head = {'x': head['x'] + dx, 'y': head['y'] + dy}
+
+        if not self.is_future_move_safe(future_head, safe_positions, board_width, board_height, snakes) or self.is_in_history(future_head):
+            for alternative_move in directions.keys():
+                dx, dy = directions[alternative_move]
+                alternative_future_head = {'x': head['x'] + dx, 'y': head['y'] + dy}
+                if self.is_future_move_safe(alternative_future_head, safe_positions, board_width, board_height, snakes) and not self.is_in_history(alternative_future_head):
+                    return alternative_move
+        return move
+
+    def add_to_history_head(self, move_data):
+        # Füge die aktuelle Kopfposition zur Historie hinzu und behalte nur die letzten 10 Positionen
+        self.history_head.append(move_data)
+        self.history_head = self.history_head[-10:]
+
+    def simulate_snake_movement(self, snakes):
+        future_body_positions = set()
+        for snake in snakes:
+            # Beachte, dass dies nur ein Beispiel ist und angepasst werden muss, um deine spezifische Spiellogik zu berücksichtigen
+            for part in snake['body'][:-1]:  # Ignoriere den letzten Teil des Körpers, da er sich bewegt
+                future_body_positions.add((part['x'], part['y']))
+        return future_body_positions
+
+    def is_future_move_safe(self, future_head, safe_positions, board_width, board_height, snakes):
+        # Simuliere die Bewegung der Schlange und aktualisiere die Positionen des eigenen Körpers
+        future_body_positions = self.simulate_snake_movement(snakes)
+        # Konvertiere safe_positions in ein Set von Tupeln für den Flood Fill Algorithmus
+        safe_positions_set = set((pos['x'], pos['y']) for pos in safe_positions)
+        # Entferne die zukünftigen Körperpositionen aus den sicheren Positionen
+        safe_positions_set = safe_positions_set - future_body_positions
+        # Füge die zukünftige Kopfposition hinzu, um sie als Startpunkt zu verwenden
+        safe_positions_set.add((future_head['x'], future_head['y']))
+        # Berechne die Anzahl der erreichbaren sicheren Positionen von der zukünftigen Kopfposition aus
+        # Entscheide, ob die Bewegung sicher ist, basierend auf der Anzahl der erreichbaren Positionen
+        return safe_positions_set  # oder wähle einen anderen Schwellenwert

snakes/TemplateSnake.py

@@ -10,3 +10,6 @@ class TemplateSnake:
 
   def get_history(self):
     return self.history
+
+  def choose_move(self, game_data:dict):
+    pass