683 lines
22 KiB
Python
683 lines
22 KiB
Python
# Copyright (C) 2020 by ÿnérant, eichhornchen, nicomarg, charlse
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
from enum import Enum, auto
|
|
from math import sqrt
|
|
from random import choice, randint
|
|
from typing import List, Optional, Union, Tuple, Any
|
|
|
|
from .display.texturepack import TexturePack
|
|
from .translations import gettext as _
|
|
|
|
|
|
class Logs:
|
|
"""
|
|
The logs object stores the messages to display. It is encapsulating a list
|
|
of such messages, to allow multiple pointers to keep track of it even if
|
|
the list was to be reassigned.
|
|
"""
|
|
|
|
def __init__(self) -> None:
|
|
self.messages = []
|
|
|
|
def add_message(self, msg: str) -> None:
|
|
self.messages.append(msg)
|
|
|
|
def add_messages(self, msg: List[str]) -> None:
|
|
self.messages += msg
|
|
|
|
def clear(self) -> None:
|
|
self.messages = []
|
|
|
|
|
|
class Slope():
|
|
X: int
|
|
Y: int
|
|
|
|
def __init__(self, y: int, x: int) -> None:
|
|
self.Y = y
|
|
self.X = x
|
|
|
|
def compare(self, other: Union[Tuple[int, int], "Slope"]) -> int:
|
|
if isinstance(other, Slope):
|
|
y, x = other.Y, other.X
|
|
else:
|
|
y, x = other
|
|
return self.Y * x - self.X * y
|
|
|
|
def __lt__(self, other: Union[Tuple[int, int], "Slope"]) -> bool:
|
|
return self.compare(other) < 0
|
|
|
|
def __eq__(self, other: Union[Tuple[int, int], "Slope"]) -> bool:
|
|
return self.compare(other) == 0
|
|
|
|
|
|
class Map:
|
|
"""
|
|
Object that represents a Map with its width, height
|
|
and tiles, that have their custom properties.
|
|
"""
|
|
width: int
|
|
height: int
|
|
start_y: int
|
|
start_x: int
|
|
tiles: List[List["Tile"]]
|
|
visibility: List[List[bool]]
|
|
entities: List["Entity"]
|
|
logs: Logs
|
|
# coordinates of the point that should be
|
|
# on the topleft corner of the screen
|
|
currentx: int
|
|
currenty: int
|
|
|
|
def __init__(self, width: int, height: int, tiles: list,
|
|
start_y: int, start_x: int):
|
|
self.width = width
|
|
self.height = height
|
|
self.start_y = start_y
|
|
self.start_x = start_x
|
|
self.tiles = tiles
|
|
self.visibility = [[False for _ in range(len(tiles[0]))]
|
|
for _ in range(len(tiles))]
|
|
self.entities = []
|
|
self.logs = Logs()
|
|
|
|
def add_entity(self, entity: "Entity") -> None:
|
|
"""
|
|
Register a new entity in the map.
|
|
"""
|
|
self.entities.append(entity)
|
|
entity.map = self
|
|
|
|
def remove_entity(self, entity: "Entity") -> None:
|
|
"""
|
|
Unregister an entity from the map.
|
|
"""
|
|
if entity in self.entities:
|
|
self.entities.remove(entity)
|
|
|
|
def find_entities(self, entity_class: type) -> list:
|
|
return [entity for entity in self.entities
|
|
if isinstance(entity, entity_class)]
|
|
|
|
def is_free(self, y: int, x: int) -> bool:
|
|
"""
|
|
Indicates that the tile at the coordinates (y, x) is empty.
|
|
"""
|
|
return 0 <= y < self.height and 0 <= x < self.width and \
|
|
self.tiles[y][x].can_walk() and \
|
|
not any(entity.x == x and entity.y == y for entity in self.entities)
|
|
|
|
def entity_is_present(self, y: int, x: int) -> bool:
|
|
"""
|
|
Indicates that the tile at the coordinates (y, x) contains a killable
|
|
entity
|
|
"""
|
|
return 0 <= y < self.height and 0 <= x < self.width and \
|
|
any(entity.x == x and entity.y == y and entity.is_friendly()
|
|
for entity in self.entities)
|
|
|
|
@staticmethod
|
|
def load(filename: str) -> "Map":
|
|
"""
|
|
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) -> "Map":
|
|
"""
|
|
Load a map represented by its characters and build a Map object.
|
|
"""
|
|
lines = content.split("\n")
|
|
first_line = lines[0]
|
|
start_y, start_x = map(int, first_line.split(" "))
|
|
lines = [line for line in lines[1:] if line]
|
|
height = len(lines)
|
|
width = len(lines[0])
|
|
tiles = [[Tile.from_ascii_char(c)
|
|
for x, c in enumerate(line)] for y, line in enumerate(lines)]
|
|
|
|
return Map(width, height, tiles, start_y, start_x)
|
|
|
|
@staticmethod
|
|
def load_dungeon_from_string(content: str) -> List[List["Tile"]]:
|
|
"""
|
|
Transforms a string into the list of corresponding tiles
|
|
"""
|
|
lines = content.split("\n")
|
|
tiles = [[Tile.from_ascii_char(c)
|
|
for x, c in enumerate(line)] for y, line in enumerate(lines)]
|
|
return tiles
|
|
|
|
def draw_string(self, pack: TexturePack) -> str:
|
|
"""
|
|
Draw the current map as a string object that can be rendered
|
|
in the window.
|
|
"""
|
|
return "\n".join("".join(tile.char(pack) for tile in line)
|
|
for line in self.tiles)
|
|
|
|
def spawn_random_entities(self, count: int) -> None:
|
|
"""
|
|
Put randomly {count} entities on the map, where it is available.
|
|
"""
|
|
for _ignored in range(count):
|
|
y, x = 0, 0
|
|
while True:
|
|
y, x = randint(0, self.height - 1), randint(0, self.width - 1)
|
|
tile = self.tiles[y][x]
|
|
if tile.can_walk():
|
|
break
|
|
entity = choice(Entity.get_all_entity_classes())()
|
|
entity.move(y, x)
|
|
self.add_entity(entity)
|
|
|
|
def compute_visibility(self, y: int, x: int, max_range: int) -> None:
|
|
"""
|
|
Sets the visible tiles to be the ones visible by an entity at point
|
|
(y, x), using a twaked shadow casting algorithm
|
|
"""
|
|
|
|
for line in self.visibility:
|
|
for i in range(len(line)):
|
|
line[i] = False
|
|
self.visibility[y][x] = True
|
|
for octant in range(8):
|
|
self.compute_visibility_octant(octant, (y, x), max_range, 1,
|
|
Slope(1, 1), Slope(0, 1))
|
|
|
|
def crop_top_visibility(self, octant: int, origin: Tuple[int, int],
|
|
x: int, top: Slope) -> int:
|
|
if top.X == 1:
|
|
top_y = x
|
|
else:
|
|
top_y = ((x * 2 - 1) * top.Y + top.X) / (top.X * 2)
|
|
if self.is_wall(top_y, x, octant, origin):
|
|
if top >= (top_y * 2 + 1, x * 2) and not\
|
|
self.is_wall(top_y + 1, x, octant, origin):
|
|
top_y += 1
|
|
else:
|
|
ax = x * 2
|
|
if self.is_wall(top_y + 1, x + 1, octant, origin):
|
|
ax += 1
|
|
if top > (top_y * 2 + 1, ax):
|
|
top_y += 1
|
|
return top_y
|
|
|
|
def crop_bottom_visibility(self, octant: int, origin: Tuple[int, int],
|
|
x: int, bottom: Slope) -> int:
|
|
if bottom.Y == 0:
|
|
bottom_y = 0
|
|
else:
|
|
bottom_y = ((x * 2 + 1) * bottom.Y + bottom.X) /\
|
|
(bottom.X * 2)
|
|
if bottom >= (bottom_y * 2 + 1, x * 2) and\
|
|
self.is_wall(bottom_y, x, octant, origin) and\
|
|
not self.is_wall(bottom_y + 1, x, octant, origin):
|
|
bottom_y += 1
|
|
return bottom_y
|
|
|
|
def compute_visibility_octant(self, octant: int, origin: Tuple[int, int],
|
|
max_range: int, distance: int, top: Slope,
|
|
bottom: Slope) -> None:
|
|
for x in range(distance, max_range):
|
|
top_y = self.crop_top_visibility(octant, origin, x, top)
|
|
bottom_y = self.crop_bottom_visibility(octant, origin, x, bottom)
|
|
was_opaque = -1
|
|
for y in range(top_y, bottom_y - 1, -1):
|
|
if sqrt(x**2 + y**2) > max_range:
|
|
continue
|
|
is_opaque = self.is_wall(y, x, octant, origin)
|
|
is_visible = is_opaque\
|
|
or ((y != top_y or top > (y * 4 - 1, x * 4 - 1))
|
|
and (y != bottom_y or bottom < (y * 4 + 1, x * 4 + 1)))
|
|
if is_visible:
|
|
self.set_visible(y, x, octant, origin)
|
|
if x == max_range:
|
|
continue
|
|
if is_opaque and was_opaque == 0:
|
|
nx, ny = x * 2, y * 2 + 1
|
|
if self.is_wall(y + 1, x, octant, origin):
|
|
nx -= 1
|
|
if top > (ny, nx):
|
|
if y == bottom_y:
|
|
bottom = Slope(ny, nx)
|
|
break
|
|
else:
|
|
self.compute_visibility_octant(
|
|
octant, origin, max_range, x + 1, top,
|
|
Slope(ny, nx))
|
|
else:
|
|
if y == bottom_y:
|
|
return
|
|
elif not is_opaque and was_opaque == 1:
|
|
nx, ny = x * 2, y * 2 + 1
|
|
if self.is_wall(y + 1, x + 1, octant, origin):
|
|
nx += 1
|
|
if bottom >= (ny, nx):
|
|
return
|
|
was_opaque = is_opaque
|
|
if was_opaque != 0:
|
|
break
|
|
|
|
@staticmethod
|
|
def translate_coord(y: int, x: int, octant: int,
|
|
origin: Tuple[int, int]) -> Tuple[int, int]:
|
|
ny, nx = origin
|
|
if octant == 0:
|
|
return nx + x, ny - y
|
|
elif octant == 1:
|
|
return nx + y, ny - x
|
|
elif octant == 2:
|
|
return nx - y, ny - x
|
|
elif octant == 3:
|
|
return nx - x, ny - y
|
|
elif octant == 4:
|
|
return nx - x, ny + y
|
|
elif octant == 5:
|
|
return nx - y, ny + x
|
|
elif octant == 6:
|
|
return nx + y, ny + x
|
|
elif octant == 7:
|
|
return nx + x, ny + y
|
|
|
|
def is_wall(self, y: int, x: int, octant: int,
|
|
origin: Tuple[int, int]) -> bool:
|
|
y, x = self.translate_coord(y, x, octant, origin)
|
|
return self.tiles[y][x].is_wall()
|
|
|
|
def set_visible(self, y: int, x: int, octant: int,
|
|
origin: Tuple[int, int]) -> None:
|
|
y, x = self.translate_coord(y, x, octant, origin)
|
|
self.visibility[y][x] = True
|
|
|
|
def tick(self) -> None:
|
|
"""
|
|
Trigger all entity events.
|
|
"""
|
|
for entity in self.entities:
|
|
entity.act(self)
|
|
|
|
def save_state(self) -> dict:
|
|
"""
|
|
Saves the map's attributes to a dictionary
|
|
"""
|
|
d = dict()
|
|
d["width"] = self.width
|
|
d["height"] = self.height
|
|
d["start_y"] = self.start_y
|
|
d["start_x"] = self.start_x
|
|
d["currentx"] = self.currentx
|
|
d["currenty"] = self.currenty
|
|
d["entities"] = []
|
|
for enti in self.entities:
|
|
d["entities"].append(enti.save_state())
|
|
d["map"] = self.draw_string(TexturePack.ASCII_PACK)
|
|
return d
|
|
|
|
def load_state(self, d: dict) -> None:
|
|
"""
|
|
Loads the map's attributes from a dictionary
|
|
"""
|
|
self.width = d["width"]
|
|
self.height = d["height"]
|
|
self.start_y = d["start_y"]
|
|
self.start_x = d["start_x"]
|
|
self.currentx = d["currentx"]
|
|
self.currenty = d["currenty"]
|
|
self.tiles = self.load_dungeon_from_string(d["map"])
|
|
self.entities = []
|
|
dictclasses = Entity.get_all_entity_classes_in_a_dict()
|
|
for entisave in d["entities"]:
|
|
self.add_entity(dictclasses[entisave["type"]](**entisave))
|
|
|
|
|
|
class Tile(Enum):
|
|
"""
|
|
The internal representation of the tiles of the map
|
|
"""
|
|
EMPTY = auto()
|
|
WALL = auto()
|
|
FLOOR = auto()
|
|
|
|
@staticmethod
|
|
def from_ascii_char(ch: str) -> "Tile":
|
|
"""
|
|
Maps an ascii character to its equivalent in the texture pack
|
|
"""
|
|
for tile in Tile:
|
|
if tile.char(TexturePack.ASCII_PACK) == ch:
|
|
return tile
|
|
raise ValueError(ch)
|
|
|
|
def char(self, pack: TexturePack) -> str:
|
|
"""
|
|
Translates a Tile to the corresponding character according
|
|
to the texture pack
|
|
"""
|
|
return getattr(pack, self.name)
|
|
|
|
def is_wall(self) -> bool:
|
|
"""
|
|
Is this Tile a wall?
|
|
"""
|
|
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() and self != Tile.EMPTY
|
|
|
|
|
|
class Entity:
|
|
"""
|
|
An Entity object represents any entity present on the map
|
|
"""
|
|
y: int
|
|
x: int
|
|
name: str
|
|
map: Map
|
|
|
|
# noinspection PyShadowingBuiltins
|
|
def __init__(self, y: int = 0, x: int = 0, name: Optional[str] = None,
|
|
map: Optional[Map] = None, *ignored, **ignored2):
|
|
self.y = y
|
|
self.x = x
|
|
self.name = name
|
|
self.map = map
|
|
|
|
def check_move(self, y: int, x: int, move_if_possible: bool = False)\
|
|
-> bool:
|
|
"""
|
|
Checks if moving to (y,x) is authorized
|
|
"""
|
|
free = self.map.is_free(y, x)
|
|
if free and move_if_possible:
|
|
self.move(y, x)
|
|
return free
|
|
|
|
def move(self, y: int, x: int) -> bool:
|
|
"""
|
|
Moves an entity to (y,x) coordinates
|
|
"""
|
|
self.y = y
|
|
self.x = x
|
|
return True
|
|
|
|
def move_up(self, force: bool = False) -> bool:
|
|
"""
|
|
Moves the entity up one tile, if possible
|
|
"""
|
|
return self.move(self.y - 1, self.x) if force else \
|
|
self.check_move(self.y - 1, self.x, True)
|
|
|
|
def move_down(self, force: bool = False) -> bool:
|
|
"""
|
|
Moves the entity down one tile, if possible
|
|
"""
|
|
return self.move(self.y + 1, self.x) if force else \
|
|
self.check_move(self.y + 1, self.x, True)
|
|
|
|
def move_left(self, force: bool = False) -> bool:
|
|
"""
|
|
Moves the entity left one tile, if possible
|
|
"""
|
|
return self.move(self.y, self.x - 1) if force else \
|
|
self.check_move(self.y, self.x - 1, True)
|
|
|
|
def move_right(self, force: bool = False) -> bool:
|
|
"""
|
|
Moves the entity right one tile, if possible
|
|
"""
|
|
return self.move(self.y, self.x + 1) if force else \
|
|
self.check_move(self.y, self.x + 1, True)
|
|
|
|
def act(self, m: Map) -> None:
|
|
"""
|
|
Define the action of the entity that is ran each tick.
|
|
By default, does nothing.
|
|
"""
|
|
pass
|
|
|
|
def distance_squared(self, other: "Entity") -> int:
|
|
"""
|
|
Get the square of the distance to another entity.
|
|
Useful to check distances since square root takes time.
|
|
"""
|
|
return (self.y - other.y) ** 2 + (self.x - other.x) ** 2
|
|
|
|
def distance(self, other: "Entity") -> float:
|
|
"""
|
|
Get the cartesian distance to another entity.
|
|
"""
|
|
return sqrt(self.distance_squared(other))
|
|
|
|
def is_fighting_entity(self) -> bool:
|
|
"""
|
|
Is this entity a fighting entity?
|
|
"""
|
|
return isinstance(self, FightingEntity)
|
|
|
|
def is_item(self) -> bool:
|
|
"""
|
|
Is this entity an item?
|
|
"""
|
|
from squirrelbattle.entities.items import Item
|
|
return isinstance(self, Item)
|
|
|
|
def is_friendly(self) -> bool:
|
|
"""
|
|
Is this entity a friendly entity?
|
|
"""
|
|
return isinstance(self, FriendlyEntity)
|
|
|
|
def is_merchant(self) -> bool:
|
|
"""
|
|
Is this entity a merchant?
|
|
"""
|
|
from squirrelbattle.entities.friendly import Merchant
|
|
return isinstance(self, Merchant)
|
|
|
|
@property
|
|
def translated_name(self) -> str:
|
|
return _(self.name.replace("_", " "))
|
|
|
|
@staticmethod
|
|
def get_all_entity_classes() -> list:
|
|
"""
|
|
Returns all entities subclasses
|
|
"""
|
|
from squirrelbattle.entities.items import BodySnatchPotion, Bomb, Heart
|
|
from squirrelbattle.entities.monsters import Tiger, Hedgehog, \
|
|
Rabbit, TeddyBear
|
|
from squirrelbattle.entities.friendly import Merchant, Sunflower
|
|
return [BodySnatchPotion, Bomb, Heart, Hedgehog, Rabbit, TeddyBear,
|
|
Sunflower, Tiger, Merchant]
|
|
|
|
@staticmethod
|
|
def get_all_entity_classes_in_a_dict() -> dict:
|
|
"""
|
|
Returns all entities subclasses in a dictionary
|
|
"""
|
|
from squirrelbattle.entities.player import Player
|
|
from squirrelbattle.entities.monsters import Tiger, Hedgehog, Rabbit, \
|
|
TeddyBear
|
|
from squirrelbattle.entities.friendly import Merchant, Sunflower
|
|
from squirrelbattle.entities.items import BodySnatchPotion, Bomb, \
|
|
Heart, Sword
|
|
return {
|
|
"Tiger": Tiger,
|
|
"Bomb": Bomb,
|
|
"Heart": Heart,
|
|
"BodySnatchPotion": BodySnatchPotion,
|
|
"Hedgehog": Hedgehog,
|
|
"Rabbit": Rabbit,
|
|
"TeddyBear": TeddyBear,
|
|
"Player": Player,
|
|
"Merchant": Merchant,
|
|
"Sunflower": Sunflower,
|
|
"Sword": Sword,
|
|
}
|
|
|
|
def save_state(self) -> dict:
|
|
"""
|
|
Saves the coordinates of the entity
|
|
"""
|
|
d = dict()
|
|
d["x"] = self.x
|
|
d["y"] = self.y
|
|
d["type"] = self.__class__.__name__
|
|
return d
|
|
|
|
|
|
class FightingEntity(Entity):
|
|
"""
|
|
A FightingEntity is an entity that can fight, and thus has a health,
|
|
level and stats
|
|
"""
|
|
maxhealth: int
|
|
health: int
|
|
strength: int
|
|
intelligence: int
|
|
charisma: int
|
|
dexterity: int
|
|
constitution: int
|
|
level: int
|
|
|
|
def __init__(self, maxhealth: int = 0, health: Optional[int] = None,
|
|
strength: int = 0, intelligence: int = 0, charisma: int = 0,
|
|
dexterity: int = 0, constitution: int = 0, level: int = 0,
|
|
*args, **kwargs) -> None:
|
|
super().__init__(*args, **kwargs)
|
|
self.maxhealth = maxhealth
|
|
self.health = maxhealth if health is None else health
|
|
self.strength = strength
|
|
self.intelligence = intelligence
|
|
self.charisma = charisma
|
|
self.dexterity = dexterity
|
|
self.constitution = constitution
|
|
self.level = level
|
|
|
|
@property
|
|
def dead(self) -> bool:
|
|
return self.health <= 0
|
|
|
|
def hit(self, opponent: "FightingEntity") -> str:
|
|
"""
|
|
Deals damage to the opponent, based on the stats
|
|
"""
|
|
return _("{name} hits {opponent}.")\
|
|
.format(name=_(self.translated_name.capitalize()),
|
|
opponent=_(opponent.translated_name)) + " " + \
|
|
opponent.take_damage(self, self.strength)
|
|
|
|
def take_damage(self, attacker: "Entity", amount: int) -> str:
|
|
"""
|
|
Take damage from the attacker, based on the stats
|
|
"""
|
|
self.health -= amount
|
|
if self.health <= 0:
|
|
self.die()
|
|
return _("{name} takes {amount} damage.")\
|
|
.format(name=self.translated_name.capitalize(), amount=str(amount))\
|
|
+ (" " + _("{name} dies.")
|
|
.format(name=self.translated_name.capitalize())
|
|
if self.health <= 0 else "")
|
|
|
|
def die(self) -> None:
|
|
"""
|
|
If a fighting entity has no more health, it dies and is removed
|
|
"""
|
|
self.map.remove_entity(self)
|
|
|
|
def keys(self) -> list:
|
|
"""
|
|
Returns a fighting entity's specific attributes
|
|
"""
|
|
return ["name", "maxhealth", "health", "level", "strength",
|
|
"intelligence", "charisma", "dexterity", "constitution"]
|
|
|
|
def save_state(self) -> dict:
|
|
"""
|
|
Saves the state of the entity into a dictionary
|
|
"""
|
|
d = super().save_state()
|
|
for name in self.keys():
|
|
d[name] = getattr(self, name)
|
|
return d
|
|
|
|
|
|
class FriendlyEntity(FightingEntity):
|
|
"""
|
|
Friendly entities are living entities which do not attack the player
|
|
"""
|
|
dialogue_option: list
|
|
|
|
def talk_to(self, player: Any) -> str:
|
|
return _("{entity} said: {message}").format(
|
|
entity=self.translated_name.capitalize(),
|
|
message=choice(self.dialogue_option))
|
|
|
|
def keys(self) -> list:
|
|
"""
|
|
Returns a friendly entity's specific attributes
|
|
"""
|
|
return ["maxhealth", "health"]
|
|
|
|
|
|
class InventoryHolder(Entity):
|
|
hazel: int # Currency of the game
|
|
inventory: list
|
|
|
|
def translate_inventory(self, inventory: list) -> list:
|
|
"""
|
|
Translate the JSON-state of the inventory into a list of the items in
|
|
the inventory.
|
|
"""
|
|
for i in range(len(inventory)):
|
|
if isinstance(inventory[i], dict):
|
|
inventory[i] = self.dict_to_inventory(inventory[i])
|
|
return inventory
|
|
|
|
def dict_to_inventory(self, item_dict: dict) -> Entity:
|
|
"""
|
|
Translate a dict object that contains the state of an item
|
|
into an item object.
|
|
"""
|
|
entity_classes = self.get_all_entity_classes_in_a_dict()
|
|
|
|
item_class = entity_classes[item_dict["type"]]
|
|
return item_class(**item_dict)
|
|
|
|
def save_state(self) -> dict:
|
|
"""
|
|
We save the inventory of the merchant formatted as JSON
|
|
"""
|
|
d = super().save_state()
|
|
d["hazel"] = self.hazel
|
|
d["inventory"] = [item.save_state() for item in self.inventory]
|
|
return d
|
|
|
|
def add_to_inventory(self, obj: Any) -> None:
|
|
"""
|
|
Adds an object to inventory
|
|
"""
|
|
self.inventory.append(obj)
|
|
|
|
def remove_from_inventory(self, obj: Any) -> None:
|
|
"""
|
|
Removes an object from the inventory
|
|
"""
|
|
self.inventory.remove(obj)
|
|
|
|
def change_hazel_balance(self, hz: int) -> None:
|
|
"""
|
|
Change the number of hazel the entity has by hz. hz is negative
|
|
when the player loses money and positive when he gains money
|
|
"""
|
|
self.hazel += hz
|