Implement Coders of the Caribbean
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234
challenge_coders_of_the_caribbean.py
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234
challenge_coders_of_the_caribbean.py
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import math
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import random
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from enum import Enum
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from typing import List, Union, Sequence, TypeVar, Optional, Dict
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import sys
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BARREL = 'BARREL'
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SHIP = 'SHIP'
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MINE = 'MINE'
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CANNONBALL = 'CANNONBALL'
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DEFAULT_SHOOT_WAIT = 2
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DEFAULT_MINE_WAIT = 4
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class Action(Enum):
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MINE = 'MINE'
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MOVE = 'MOVE'
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FIRE = 'FIRE'
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WAIT = 'WAIT'
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SLOWER = 'SLOWER'
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class GameMap:
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def __init__(self,
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barrels: List['Barrel'] = None,
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my_ships: Dict[int, 'Ship'] = None,
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opponent_ships: List['Ship'] = None,
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mines: List['Mine'] = None,
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cannonballs: List['Cannonball'] = None):
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if opponent_ships is None:
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opponent_ships = []
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if cannonballs is None:
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cannonballs = []
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if mines is None:
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mines = []
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if my_ships is None:
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my_ships = {}
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if barrels is None:
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barrels = []
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self.opponent_ships = opponent_ships
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self.cannonballs = cannonballs
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self.mines = mines
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self.my_ships = my_ships
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self.barrels = barrels
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def reset(self):
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self.opponent_ships = []
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self.cannonballs = []
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self.mines = []
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self.barrels = []
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class Tile:
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def __init__(self, x: int, y: int):
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self.y = y
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self.x = x
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class Entity(Tile):
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def __init__(self, game_map: GameMap, entity_id: int, x: int, y: int):
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super().__init__(x, y)
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self.game_map = game_map
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self.id = entity_id
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def distance(self, other: 'EntityType') -> float:
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return ((self.x - other.x) ** 2 + (self.y - other.y) ** 2) ** 0.5
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def nearest_barrel(self) -> Optional['Barrel']:
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return self.nearest(self.game_map.barrels)
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def nearest_opponent(self) -> Optional['Ship']:
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return self.nearest(self.game_map.opponent_ships)
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def nearest_mine(self) -> Optional['Mine']:
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return self.nearest(self.game_map.mines)
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def nearest(self, entities: Sequence['EntityType']) -> Optional['EntityType']:
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nearest = None
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best_dist = math.inf
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for entity in entities:
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dist = self.distance(entity)
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if dist < best_dist:
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best_dist = dist
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nearest = entity
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return nearest
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class Barrel(Entity):
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def __init__(self, game_map: GameMap, entity_id: int, x: int, y: int, quantity: int):
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super().__init__(game_map, entity_id, x, y)
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self.quantity = quantity
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class Ship(Entity):
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def __init__(self, game_map: GameMap,
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entity_id: int, x: int, y: int,
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orientation: int, speed: int, stock: int, mine: bool = True):
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super().__init__(game_map, entity_id, x, y)
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self.orientation = orientation
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self.speed = speed
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self.stock = stock
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self.mine = mine
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self.mine_wait = DEFAULT_MINE_WAIT
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self.shoot_wait = DEFAULT_SHOOT_WAIT
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self.action = None # type: Optional[Action]
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self.target = None # type: Optional[TargetType]
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def play_turn(self):
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if self.action is Action.MINE:
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self.mine_wait = DEFAULT_MINE_WAIT
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elif self.action is Action.FIRE:
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self.shoot_wait = DEFAULT_SHOOT_WAIT
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if self.target:
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print('{} {} {}'.format(self.action.value, self.target.x, self.target.y))
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else:
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print(self.action.value)
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self.action = None
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self.target = None
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self.mine_wait -= 1
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self.shoot_wait -= 1
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def drop_mine(self):
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self.action = Action.MINE
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def wait(self):
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self.action = Action.WAIT
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def slower(self):
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self.action = Action.SLOWER
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def shoot(self, target: 'EntityType'):
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self.action = Action.FIRE
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self.target = target
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def move(self, target: 'TargetType'):
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self.action = Action.MOVE
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self.target = target
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class Mine(Entity):
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def __init__(self, game_map: GameMap, entity_id: int, x: int, y: int):
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super().__init__(game_map, entity_id, x, y)
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class Cannonball(Entity):
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def __init__(self, game_map: GameMap, entity_id: int, x: int, y: int, shooter_id: int, turns_before_impact: int):
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super().__init__(game_map, entity_id, x, y)
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self.turns_before_impact = turns_before_impact
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self.shooter_id = shooter_id
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EntityType = TypeVar('EntityType', Entity, Barrel, Ship, Mine, Cannonball)
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TargetType = Union[EntityType, Tile]
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def main():
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random.seed()
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game_map = GameMap()
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while True:
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my_ship_count = int(input()) # the number of remaining ships
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entity_count = int(input()) # the number of entities (e.g. ships, mines or cannonballs)
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game_map.reset()
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# Fetch info
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for i in range(entity_count):
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entity_id, entity_type, x, y, arg_1, arg_2, arg_3, arg_4 = input().split()
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entity_id = int(entity_id)
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x = int(x)
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y = int(y)
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if entity_type == BARREL:
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rhum_quantity = int(arg_1)
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game_map.barrels.append(Barrel(game_map, entity_id, x, y, rhum_quantity))
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elif entity_type == SHIP:
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orientation = int(arg_1)
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speed = int(arg_2)
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rhum_stock = int(arg_3)
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mine = int(arg_4) == 1
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ship = Ship(game_map, entity_id, x, y, orientation, speed, rhum_stock, mine)
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if mine:
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my_ship = game_map.my_ships.get(entity_id, None)
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if my_ship:
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my_ship.orientation = orientation
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my_ship.speed = speed
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my_ship.stock = rhum_stock
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else:
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game_map.my_ships[entity_id] = ship
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else:
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game_map.opponent_ships.append(ship)
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elif entity_type == MINE:
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game_map.mines.append(Mine(game_map, entity_id, x, y))
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elif entity_type == CANNONBALL:
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shooter_id = int(arg_1)
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turns_before_impact = int(arg_2)
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game_map.cannonballs.append(Cannonball(game_map, entity_id, x, y, shooter_id, turns_before_impact))
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# Play
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for ship in game_map.my_ships.values():
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rand = random.random()
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perr('rand', rand)
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perr('mine_wait', ship.mine_wait)
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perr('shoot_wait', ship.shoot_wait)
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if (ship.mine_wait > 0 and ship.shoot_wait > 0) or rand > 0.4:
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target = Tile(random.randint(0, 23), random.randint(0, 21))
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if game_map.barrels:
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target = ship.nearest_barrel()
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ship.move(target)
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elif rand > 0.2:
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opponent = ship.nearest_opponent()
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ship.shoot(opponent)
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else:
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ship.drop_mine()
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ship.play_turn()
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def perr(*args):
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print(*args, file=sys.stderr, flush=True)
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if __name__ == '__main__':
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main()
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