cig/cultist_war/main.py

import heapq
import sys
import math
import time

debug = True

t0 = time.time()


def log(*msg):
    if debug:
        print("{} - ".format(str(time.time() - t0)[1:5]), *msg, file=sys.stderr, flush=True)


def time_to(total, step):
    """ number of steps to reach total """
    return total // step + (1 if total % step > 0 else 0)


class BaseClass:
    def __repr__(self):
        return f"<{self.__class__.__name__}: {self.__dict__}>"


class Queue(BaseClass):
    def __init__(self):
        self.items = []

    def __bool__(self):
        return bool(self.items)

    def __repr__(self):
        return str(self.items)

    def values(self):
        return (v for _, v in self.items)

    def put(self, priority, item):
        while priority in [p for p, _ in self.items]:
            priority += 1
        heapq.heappush(self.items, (priority, item))

    def get(self):
        return heapq.heappop(self.items)[1]

    def get_items(self):
        return heapq.heappop(self.items)


class Player(BaseClass):
    def __init__(self, id_):
        self.id = id_


ME = Player(int(input()))  # Input gives the player id: 0 plays first
OPPONENT = Player(1 - ME.id)

PLAYERS_INDEX = {p.id: p for p in [ME, OPPONENT]}
PLAYERS_ORDER = sorted([ME, OPPONENT], key=lambda p: p.id)


class Unit(BaseClass):
    TYPE_CULTIST = 0
    TYPE_CULT_LEADER = 1

    OWNER_0 = 0
    OWNER_1 = 1
    NO_OWNER = 2

    SHOOTING_RANGE = 6
    SHOOTING_MAX_DAMAGE = 7

    def __init__(self, id_):
        self.id = id_
        self.hp = 10
        self.x = None
        self.y = None
        self.owner = None

    @property
    def pos(self):
        return self.x, self.y

    @property
    def owned(self):
        return self.owner == ME.id

    @property
    def opponent(self):
        return self.owner == OPPONENT.id

    @property
    def neutral(self):
        return self.owner == self.NO_OWNER


class CultLeader(Unit):
    pass


class Action(BaseClass):
    pass


class ActionWait(Action):
    def __repr__(self):
        return f"<ActionWait>"

    def exec(self):
        print("WAIT")


class ActionMove(Action):
    def __init__(self, unit, pos):
        self.unit = unit
        self.pos = pos

    def __repr__(self):
        return f"<ActionMove: {self.unit.id} to {self.pos}>"

    def exec(self):
        print(f"{self.unit.id} MOVE {self.pos[0]} {self.pos[1]}")


class ActionShoot(Action):
    def __init__(self, unit, target):
        self.unit = unit
        self.target = target

    def __repr__(self):
        return f"<ActionShoot: {self.unit.id} to {self.target.id}>"

    def exec(self):
        print(f"{self.unit.id} SHOOT {self.target.id}")


class ActionConvert(Action):
    def __init__(self, unit, target):
        self.unit = unit
        self.target = target

    def __repr__(self):
        return f"<ActionConvert: {self.unit.id} to {self.target.id}>"

    def exec(self):
        print(f"{self.unit.id} CONVERT {self.target.id}")


class Grid(BaseClass):
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.obstacles = []
        self.index = {}
        self.units = {}
        self.round = 0

    def prepare_round(self):
        self.units = {}

    def update_unit(self, id_, type_, hp, x, y, owner):
        self.units[id_] = Unit(id_) if type_ != Unit.TYPE_CULT_LEADER else CultLeader(id_)
        unit = self.units[id_]
        unit.hp = hp
        unit.x = x
        unit.y = y
        unit.owner = owner

    def update_index(self):
        self.index = {}
        for unit in self.units.values():
            self.index[(unit.x, unit.y)] = unit

    def own_cult_leader(self):
        return next(u for u in self.units.values() if type(u) is CultLeader and u.owned)

    def allied_cultists(self):
        return [u for u in self.units.values() if type(u) is not CultLeader and u.owned]

    def opponent_units(self):
        return [u for u in self.units.values() if u.opponent]

    def opponent_cult_leader(self):
        return [u for u in self.units.values() if type(u) is CultLeader and not u.owned]

    def opponent_cultists(self):
        return [u for u in self.units.values() if type(u) is not CultLeader and u.opponent]

    def neutrals(self):
        return [u for u in self.units.values() if u.neutral]

    def list_actions(self):
        actions = Queue()

        k_convert_neutrals = 10
        k_convert_danger = 30
        k_shoot_opponent_cultist = 20
        k_shoot_opponent_cult_leader = 10

        k_limit = 200

        cult_leader = self.own_cult_leader()

        for n in self.neutrals():
            action = ActionConvert(cult_leader, n)

            distance = self.manhattan(cult_leader.pos, n.pos)
            danger = 0
            for u in self.opponent_cultists():
                fire_dist = self.fire_dist(cult_leader.pos, u.pos)
                if fire_dist < u.SHOOTING_RANGE:
                    danger += (u.SHOOTING_MAX_DAMAGE - fire_dist)

            priority = k_convert_neutrals * distance + k_convert_danger * danger

            if priority > k_limit:
                continue

            actions.put(priority, action)

        for a in self.allied_cultists():
            for u in self.opponent_cultists():
                fire_dist = self.fire_dist(a.pos, u.pos)
                if fire_dist < u.SHOOTING_RANGE:
                    action = ActionShoot(a, u)

                    priority = (k_shoot_opponent_cult_leader if type(
                        u) is CultLeader else k_shoot_opponent_cultist) * fire_dist

                    if priority > k_limit:
                        continue

                    actions.put(priority, action)

        return actions

    def in_grid(self, pos):
        return 0 <= pos[0] < self.width and 0 <= pos[1] < self.height

    def can_see_trough(self, pos):
        return self.in_grid(pos) and pos not in self.obstacles + list(self.index.values())

    def can_move_on(self, pos):
        return self.in_grid(pos) and pos not in self.obstacles + list(self.index.values())

    @staticmethod
    def manhattan(from_, to_):
        xa, ya = from_
        xb, yb = to_
        return abs(xa - xb) + abs(ya - yb)

    @classmethod
    def line(cls, from_, to_):
        """ Implementation of bresenham's algorithm """
        xa, ya = from_
        xb, yb = to_

        if (xa, ya) == (xb, yb):
            return [(xa, ya)]

        # diagonal symmetry
        vertically_oriented = (abs(yb - ya) > abs(xb - xa))
        if vertically_oriented:
            ya, xa, yb, xb = xa, ya, xb, yb

        # horizontal symmetry
        reversed_sym = (xa > xb)
        if reversed_sym:
            xb, yb, xa, ya = xa, ya, xb, yb

        # angle
        dx, dy = xb - xa, yb - ya
        alpha = (abs(dy) / dx)

        offset = 0.0
        step = 1 if dy > 0 else -1

        result = []
        y_ = ya
        for x_ in range(xa, xb + 1):
            result.append((y_, x_) if vertically_oriented else (x_, y_))

            offset += alpha
            if offset > 0.5:
                y_ += step
                offset -= 1.0

        if reversed_sym:
            result.reverse()
        return result

    def fire_line(self, from_, to_):
        line = self.line(from_, to_)
        return line if all(self.can_see_trough(c) for c in line) else []

    def fire_dist(self, from_, to_):
        return len(self.fire_line(from_, to_))


# Create grid
GRID = Grid(*[int(i) for i in input().split()])
GRID.obstacles = [(i, j) for i in range(GRID.height) for j, val in enumerate(input()) if val == 'x']

while 1:
    # TODO: prendre en compte le terrain dans la ligne de visée et les déplacements

    GRID.prepare_round()
    for _ in range(int(input())):
        GRID.update_unit(*[int(j) for j in input().split()])
    GRID.update_index()

    actions = GRID.list_actions()

    for action in actions.items:
        log(f"* {action}")

    try:
        action = actions.get()
    except IndexError:
        log("no action...")
        action = ActionWait()

    log(f"exec : {action}")

    action.exec()
    GRID.round += 1