236 lines
10 KiB
Python
236 lines
10 KiB
Python
from Position import Position
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from typing import Union
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from random import randint
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from PIL import Image
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class Road:
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def __init__(self, position: Position, id_height: int, id_width: int, border: bool = False):
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self.position: Position = position
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self.north: Union[Road, None] = None
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self.south: Union[Road, None] = None
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self.east: Union[Road, None] = None
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self.west: Union[Road, None] = None
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self.id_height = id_height
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self.id_width = id_width
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self.border = border
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class District:
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"""
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The District class represents a district that can be expanded.
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Attributes:
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center_expend (Position): The center position from which the district expands.
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area (list): The list of positions that are part of the district.
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area_expend_from_point (list): The list of positions from which the district can expand.
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area_expend (list): The list of positions to which the district will maybe expand.
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"""
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def __init__(self, tile_id: int, center: Position, district_type: str = ""):
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"""
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The constructor for the District class.
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:param tile_id: Unique id of the district (Must be greater than 0)
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:param center: The center position from which the district expands.
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:param district_type: The type of the district (Forest, City, Mountain, Villa)
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"""
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if tile_id <= 0:
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raise ValueError("Tile id must be greater than 0")
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self.tile_id = tile_id
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self.type = district_type
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self.center_expend = center
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self.area_expend_from_point = [center]
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self.area_expend = []
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self.roads: list[Road] = []
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self.roads_expend = []
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def verify_point(self, point: Position, point_new: Position, map_data: list[list[int]],
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height_map: list[list[int]]):
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"""
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Verify if a new point can be added to a district extend area list.
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:param point: The current point.
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:param point_new: The new point to be verified.
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:param map_data: The 2D list representing the map.
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:param height_map: The 2D list representing the height map.
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:return: True if the new point can be added, False otherwise.
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"""
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return (0 <= point_new.x < len(map_data[0]) and
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0 <= point_new.y < len(map_data) and
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map_data[point_new.y][point_new.x] == 0 and
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(self.type == "Mountain" or
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abs(height_map[point_new.y][point_new.x] - height_map[point.y][point.x]) < 2))
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def is_point_inside(self, point: Position, map_data) -> bool:
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"""
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Check if a point is inside the district.
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:param point: The point to be checked.
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:return: True if the point is inside the district, False otherwise.
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"""
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if not (0 <= point.x < len(map_data[0]) and 0 <= point.y < len(map_data)):
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return False
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return map_data[point.y][point.x] == self.tile_id
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def is_position_in_area_expend(self, position: Position) -> bool:
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"""
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Check if a position is inside the district.
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:param position: The position to be checked.
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:return: True if the position is inside the district, False otherwise.
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"""
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for point in self.area_expend:
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if point == position:
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return True
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return False
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def update_expend_points(self, point: Position, map_data: list[list[int]], height_map: list[list[int]]):
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"""
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Update the points to which the district can expand.
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:param point: The current point.
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:param map_data: The 2D list representing the map.
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:param height_map: The 2D list representing the height map.
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"""
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for pos in [Position(1, 0), Position(-1, 0), Position(0, 1), Position(0, -1)]:
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if self.verify_point(point, point + pos, map_data, height_map):
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if not self.is_position_in_area_expend(point + pos):
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self.area_expend.append(point + pos)
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self.area_expend_from_point.remove(point)
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def move_point_to_area(self, point: Position, vector: Position, map_data) -> Position:
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while not self.is_point_inside(point + vector, map_data):
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point += vector
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return point + vector
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def get_road_from_point(self, point: Position) -> Union[Road, None]:
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"""
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Get the road that contains a specific point.
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:param point: The point to be checked.
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:return: The road that contains the point.
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"""
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for road in self.roads:
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if point == road.position:
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return road
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return None
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def get_road_expend_from_point(self, point: Position) -> Union[Road, None]:
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"""
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Get the road that contains a specific point.
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:param point: The point to be checked.
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:return: The road that contains the point.
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"""
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for road in self.roads_expend:
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if point == road.position:
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return road
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return None
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def generate_roads(self, map_data, random_range=(20, 40)):
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width = {0: self.center_expend.x}
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height = {0: self.center_expend.y}
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self.roads_expend = [Road(self.center_expend, 0, 0)]
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self.roads = [self.roads_expend[0]]
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while len(self.roads_expend) > 0:
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road = self.roads_expend.pop(0)
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print(road.position)
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for id_width in [-1, 1]:
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if road.id_width + id_width not in width:
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width[road.id_width + id_width] = width[road.id_width] + randint(random_range[0],
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random_range[1]) * id_width
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road_new = Road(Position(width[road.id_width + id_width], road.position.y),
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road.id_height, road.id_width + id_width)
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if self.is_point_inside(road_new.position, map_data):
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road_search = self.get_road_from_point(road_new.position)
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road_expend_search = self.get_road_expend_from_point(road_new.position)
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if road_search is not None:
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road_new = road_search
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if id_width == -1:
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road.west = road_new
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road_new.east = road
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else:
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road.east = road_new
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road_new.west = road
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if road_search is None:
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self.roads.append(road_new)
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self.roads_expend.append(road_new)
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else:
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self.roads[self.roads.index(road_search)] = road_new
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if road_expend_search is not None:
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self.roads_expend[self.roads_expend.index(road_expend_search)] = road_new
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else:
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point_new = self.move_point_to_area(road_new.position, Position(-id_width, 0), map_data)
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road_new = Road(point_new, road.id_height, road.id_width + id_width, True)
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if id_width == -1:
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road.west = road_new
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road_new.east = road
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else:
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road.east = road_new
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road_new.west = road
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self.roads.append(road_new)
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for id_height in [-1, 1]:
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if road.id_height + id_height not in height:
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height[road.id_height + id_height] = height[road.id_height] + randint(random_range[0],
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random_range[1]) * id_height
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road_new = Road(Position(road.position.x, height[road.id_height + id_height]),
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road.id_height + id_height, road.id_width)
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if self.is_point_inside(road_new.position, map_data):
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road_search = self.get_road_from_point(road_new.position)
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road_expend_search = self.get_road_expend_from_point(road_new.position)
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if road_search is not None:
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road_new = road_search
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if id_height == -1:
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road.north = road_new
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road_new.south = road
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else:
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road.south = road_new
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road_new.north = road
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if road_search is None:
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self.roads.append(road_new)
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self.roads_expend.append(road_new)
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else:
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self.roads[self.roads.index(road_search)] = road_new
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if road_expend_search is not None:
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self.roads_expend[self.roads_expend.index(road_expend_search)] = road_new
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else:
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pass
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point_new = self.move_point_to_area(road_new.position, Position(0, -id_height), map_data)
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road_new = Road(point_new, road.id_height + id_height, road.id_width, True)
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if id_height == -1:
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road.north = road_new
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road_new.south = road
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else:
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road.south = road_new
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road_new.north = road
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self.roads.append(road_new)
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def draw_roads(self, image: Image, size: int = 1):
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for road in self.roads:
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image.putpixel((road.position.x, road.position.y), (255, 255, 255))
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if road.north is not None:
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for y in range(road.position.y, road.north.position.y):
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image = draw_square(image, Position(road.position.x, y), size)
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if road.south is not None:
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for y in range(road.position.y, road.south.position.y):
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image = draw_square(image, Position(road.position.x, y), size)
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if road.east is not None:
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for x in range(road.position.x, road.east.position.x):
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image = draw_square(image, Position(x, road.position.y), size)
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if road.west is not None:
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for x in range(road.position.x, road.west.position.x):
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image = draw_square(image, Position(x, road.position.y), size)
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def draw_square(image, center: Position, size: int) -> Image:
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for x in range(center.x - size, center.x + size):
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for y in range(center.y - size, center.y + size):
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if 0 <= x < image.width and 0 <= y < image.height:
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image.putpixel((x, y), (255, 255, 255))
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return image
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