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python-roguelike/entity.py

64 lines
1.7 KiB
Python

from __future__ import annotations
import copy
from typing import Optional, Tuple, TypeVar, TYPE_CHECKING
if TYPE_CHECKING:
from game_map import GameMap
T = TypeVar("T", bound="Entity")
class Entity:
"""
A generic object to represent players, enemies, items, etc.
"""
gamemap: GameMap
def __init__(
self,
gamemap: Optional[GameMap] = None,
x: int = 0,
y: int = 0,
char: str = "?",
color: Tuple[int, int, int] = (255, 255, 255),
name: str = "<Unnamed>",
blocks_movement: bool = False,
):
self.x = x
self.y = y
self.char = char
self.color = color
self.name = name
self.blocks_movement = blocks_movement
if gamemap:
# If gamemap isn't provided now, it will be later.
self.gamemap = gamemap
gamemap.entities.add(self)
def spawn(self: T, gamemap: GameMap, x: int, y: int) -> T:
"""Spawn a copy of this instance at the given location."""
clone = copy.deepcopy(self)
clone.x = x
clone.y = y
clone.gamemap = gamemap
gamemap.entities.add(clone)
return clone
def place(self, x: int, y: int, gamemap: Optional[GameMap] = None) -> None:
"""Place this entity at a new location. Handles moving across GameMaps."""
self.x = x
self.y = y
if gamemap:
if hasattr(self, "gamemap"): # Possibly uninitialized
self.gamemap.entities.remove(self)
self.gamemap = gamemap
gamemap.entities.add(self)
def move(self, dx: int, dy: int):
# Move the entity by a given amount
self.x += dx
self.y += dy