squirrel-battle/dungeonbattle/interfaces.py

#!/usr/bin/env python
from enum import Enum


class Map:
    """
    Object that represents a Map with its width, height
    and the whole tiles, with their custom properties.
    """
    width: int
    height: int
    tiles: list

    def __init__(self, width: int, height: int, tiles: list,
                 entities: list = None):
        self.width = width
        self.height = height
        self.tiles = tiles
        self.entities = entities or []

    @staticmethod
    def load(filename: str):
        """
        Read a file that contains the content of a map, and build a Map object.
        """
        with open(filename, "r") as f:
            file = f.read()
        return Map.load_from_string(file)

    @staticmethod
    def load_from_string(content: str):
        """
        Load a map represented by its characters and build a Map object.
        """
        lines = content.split("\n")
        lines = [line for line in lines if line]
        height = len(lines)
        width = len(lines[0])
        tiles = [[Tile(c)
                  for x, c in enumerate(line)] for y, line in enumerate(lines)]

        return Map(width, height, tiles, [])

    def draw_string(self) -> str:
        """
        Draw the current map as a string object that can be rendered
        in the window.
        """
        return "\n".join("".join(tile.value for tile in line)
                         for line in self.tiles)


class Tile(Enum):
    EMPTY = ' '
    WALL = '█'
    FLOOR = '.'

    def is_wall(self) -> bool:
        return self == Tile.WALL

    def can_walk(self) -> bool:
        """
        Check if an entity (player or not) can move in this tile.
        """
        return not self.is_wall()


class Entity:
    y: int
    x: int

    def __init__(self):
        self.y = 0
        self.x = 0

    def move(self, y: int, x: int) -> None:
        self.y = y
        self.x = x

    def act(self, m: Map) -> None:
        """
        Define the action of the entity that is ran each tick.
        By default, does nothing.
        """
        pass


class FightingEntity(Entity):
    maxhealth: int
    health: int
    strength: int
    dead: bool

    def __init__(self):
        super().__init__()
        self.health = self.maxhealth
        self.dead = False

    def hit(self, opponent: "FightingEntity") -> None:
        opponent.take_damage(self, self.strength)

    def take_damage(self, attacker: "Entity", amount: int) -> None:
        self.health -= amount
        if self.health <= 0:
            self.die()

    def die(self) -> None:
        self.dead = True