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9bb23b6c6d
Author | SHA1 | Date | |
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9bb23b6c6d | |||
429990d12e | |||
4c7e50ec39 |
7 changed files with 252 additions and 158 deletions
90
app.py
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90
app.py
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@ -0,0 +1,90 @@
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from tkinter import ttk, Tk, StringVar, BooleanVar
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from maze import Maze
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from solver import Solver
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from graphics import Graphics
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class App(Tk):
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def __init__(self):
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super().__init__()
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self.title("Maze Solver")
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# Position the window to the centre of the screen
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height = 800
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width = 1000
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screen_width = self.winfo_screenwidth()
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screen_height = self.winfo_screenheight()
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centre_x = int(screen_width/2 - width/2)
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centre_y = int(screen_height/2 - height/2)
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self.geometry(f"{width}x{height}+{centre_x}+{centre_y}")
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# Styling
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self.style = ttk.Style()
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self.style.theme_use("clam")
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self.background_colour = "white"
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self.cell_grid_colour = "black"
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self.columnconfigure(0, weight=1)
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self.columnconfigure(1, weight=1)
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self.graphics = Graphics(self)
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self.graphics.grid(column=1, row=0)
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self.maze = Maze(
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x_position=10,
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y_position=10,
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height=19,
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width=19,
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cell_height=40,
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cell_width=40,
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graphics=self.graphics,
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)
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self.solver = Solver(self.maze)
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self.algorithm_map = {
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"Breadth-First Search": self.solver.solve_with_dfs_r,
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"Depth-First Search": self.solver.solve_with_bfs_r,
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}
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self.side_panel = self._create_side_panel()
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self.side_panel.grid(column=0, row=0)
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def _create_side_panel(self):
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frame = ttk.Frame(self)
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label = ttk.Label(frame)
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label.config(text="Maze Solver", font=(None, 20))
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label.pack()
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generate = ttk.Button(
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frame,
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text="Generate maze",
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command=self.maze.generate,
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)
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generate.pack()
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algorithm = StringVar()
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combobox = ttk.Combobox(frame, textvariable=algorithm)
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algorithm_label = ttk.Label(frame, text="Searching algorithm:")
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algorithm_label.pack()
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combobox["values"] = ("Breadth-First Search", "Depth-First Search")
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combobox["state"] = "readonly"
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combobox.pack()
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randomness = BooleanVar()
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enable_randomness = ttk.Checkbutton(frame)
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enable_randomness.config(
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text="Enable Randomness",
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variable=randomness,
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onvalue=True,
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offvalue=False,
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)
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enable_randomness.pack()
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solve = ttk.Button(
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frame,
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text="Solve the maze",
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command=lambda: self.solver.solve(
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solve_method=self.algorithm_map[algorithm.get()],
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enable_random_direction=randomness.get(),
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),
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)
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solve.pack()
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return frame
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100
cell.py
100
cell.py
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@ -1,6 +1,6 @@
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from typing import Dict
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from typing import Dict
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from enum import Enum
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from enum import Enum
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from graphics import Window, Point, Line
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from line import Point, Line
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import errors
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import errors
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@ -21,17 +21,48 @@ class CellWall:
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a Cell's wall.
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a Cell's wall.
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"""
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"""
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def __init__(self, line: Line, window: Window) -> None:
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def __init__(self, line: Line) -> None:
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self.exists = True
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self._exists = True
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self.line = line
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self._line = line
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self._window = window
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self._line_colour = "black"
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def draw(self):
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def configure(self, build: bool) -> None:
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fill_colour = self._window.cell_grid_colour
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"""
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if not self.exists:
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builds or destroys the cell wall.
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fill_colour = self._window.background_colour
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"""
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if build:
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self._build_wall()
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else:
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self._destroy_wall()
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self._window.draw_line(self.line, fill_colour=fill_colour)
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def _build_wall(self) -> None:
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"""
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builds the cell wall
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"""
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self._exists = True
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self._line_colour = "black"
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def _destroy_wall(self) -> None:
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"""
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destroys the cell wall
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"""
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self._exists = False
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self._line_colour = "white"
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def wall_up(self) -> bool:
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"""
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returns true if the cell wall is up.
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"""
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return self._exists
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def get_line(self) -> Line:
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return self._line
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def get_line_colour(self) -> str:
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"""
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returns the line colour of the wall.
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"""
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return self._line_colour
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class Cell:
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class Cell:
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@ -43,7 +74,6 @@ class Cell:
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self,
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self,
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x1: int, y1: int,
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x1: int, y1: int,
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x2: int, y2: int,
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x2: int, y2: int,
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window: Window = None,
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) -> None:
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) -> None:
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# Validation
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# Validation
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if (x2 < x1) or (y2 < y1):
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if (x2 < x1) or (y2 < y1):
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@ -62,10 +92,10 @@ class Cell:
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right_wall = Line(Point(x2, y1), Point(x2, y2))
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right_wall = Line(Point(x2, y1), Point(x2, y2))
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self._walls: Dict[CellWallLabels, CellWall] = {
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self._walls: Dict[CellWallLabels, CellWall] = {
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CellWallLabels.TOP: CellWall(top_wall, window),
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CellWallLabels.TOP: CellWall(top_wall),
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CellWallLabels.BOTTOM: CellWall(bottom_wall, window),
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CellWallLabels.BOTTOM: CellWall(bottom_wall),
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CellWallLabels.LEFT: CellWall(left_wall, window),
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CellWallLabels.LEFT: CellWall(left_wall),
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CellWallLabels.RIGHT: CellWall(right_wall, window),
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CellWallLabels.RIGHT: CellWall(right_wall),
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}
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}
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# Calculate the cell's central point
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# Calculate the cell's central point
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@ -73,9 +103,6 @@ class Cell:
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centre_y = y1 + ((y2 - y1) / 2)
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centre_y = y1 + ((y2 - y1) / 2)
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self._centre = Point(centre_x, centre_y)
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self._centre = Point(centre_x, centre_y)
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# A reference to the root Window class for drawing purposes.
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self._window = window
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self._visited: Dict[str, bool] = {
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self._visited: Dict[str, bool] = {
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"generator": False,
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"generator": False,
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"solver": False,
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"solver": False,
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@ -92,13 +119,13 @@ class Cell:
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configure_walls configures the existence of the Cell's walls.
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configure_walls configures the existence of the Cell's walls.
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"""
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"""
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if top is not None:
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if top is not None:
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self._walls[CellWallLabels.TOP].exists = top
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self._walls[CellWallLabels.TOP].configure(top)
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if bottom is not None:
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if bottom is not None:
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self._walls[CellWallLabels.BOTTOM].exists = bottom
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self._walls[CellWallLabels.BOTTOM].configure(bottom)
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if left is not None:
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if left is not None:
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self._walls[CellWallLabels.LEFT].exists = left
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self._walls[CellWallLabels.LEFT].configure(left)
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if right is not None:
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if right is not None:
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self._walls[CellWallLabels.RIGHT].exists = right
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self._walls[CellWallLabels.RIGHT].configure(right)
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def centre(self) -> Point:
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def centre(self) -> Point:
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"""
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"""
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@ -114,31 +141,7 @@ class Cell:
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raise TypeError(
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raise TypeError(
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"The argument does not appear to be a valid cell wall."
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"The argument does not appear to be a valid cell wall."
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)
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)
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return self._walls[wall].exists
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return self._walls[wall].wall_up()
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def draw(self) -> None:
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"""
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draw draws the cell onto the canvas
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"""
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if not self._window:
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return
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for label in CellWallLabels:
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self._walls[label].draw()
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def draw_move(self, to_cell: 'Cell', undo: bool = False) -> None:
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"""
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draw_move draws a path between the centre of this cell and
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the centre of the given cell.
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"""
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if not self._window:
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return
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fill_colour = "red"
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if undo:
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fill_colour = "grey"
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line = Line(self.centre(), to_cell.centre())
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self._window.draw_line(line, fill_colour)
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def was_visited_by(self, visitor: str) -> bool:
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def was_visited_by(self, visitor: str) -> bool:
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"""
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"""
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@ -157,3 +160,6 @@ class Cell:
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if visitor not in ("solver", "generator"):
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if visitor not in ("solver", "generator"):
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raise ValueError(f"This is an unknown visitor ({visitor})")
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raise ValueError(f"This is an unknown visitor ({visitor})")
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self._visited[visitor] = True
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self._visited[visitor] = True
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def get_walls(self) -> Dict[CellWallLabels, CellWall]:
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return self._walls
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120
graphics.py
120
graphics.py
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@ -1,81 +1,67 @@
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from tkinter import Tk, BOTH, Canvas
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from typing import Dict
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from time import sleep
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from tkinter import Canvas
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from line import Line, Point
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from cell import CellWallLabels, CellWall
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class Point:
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class Graphics(Canvas):
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"""
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def __init__(self, container, background="white", width=800, height=800) -> None:
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Point represents the position of a point.
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super().__init__(container)
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"""
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self.config(
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bg=background,
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def __init__(self, x: int, y: int):
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self.x = x
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self.y = y
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class Line:
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"""
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Line represents a graphical line.
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"""
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def __init__(self, point_a: Point, point_b: Point) -> None:
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self.point_a = point_a
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self.point_b = point_b
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def draw(self, canvas: Canvas, fill_colour: str) -> None:
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"""
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draw draws a line on a given canvas.
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"""
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canvas.create_line(
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self.point_a.x, self.point_a.y,
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self.point_b.x, self.point_b.y,
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fill=fill_colour, width=2
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)
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canvas.pack(fill=BOTH, expand=1)
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class Window:
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"""
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Window is a Graphical window.
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"""
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def __init__(self, width: int, height: int) -> None:
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self._root = Tk()
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self._root.title("Maze Solver")
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# Position the window to the centre of the screen
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screen_width = self._root.winfo_screenwidth()
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screen_height = self._root.winfo_screenheight()
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centre_x = int(screen_width/2 - width/2)
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centre_y = int(screen_height/2 - height/2)
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self._root.geometry(f"{width}x{height}+{centre_x}+{centre_y}")
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# Styling
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self.background_colour = "white"
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self.cell_grid_colour = "black"
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self._canvas = Canvas(self._root)
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self._canvas.config(
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bg=self.background_colour,
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height=height,
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width=width,
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width=width,
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height=height,
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)
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)
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self._canvas.pack()
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def redraw(self) -> None:
|
def _redraw(self) -> None:
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"""
|
"""
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redraw redraws all the graphics in the window.
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redraw redraws all the graphics in the window.
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"""
|
"""
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self._root.update_idletasks()
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self.update_idletasks()
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self._root.update()
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self.update()
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sleep(0.05)
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|
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def mainloop(self) -> None:
|
def _draw_line(
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|
self,
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line: Line,
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fill_colour: str = "black",
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width: int = 2
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) -> None:
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"""
|
"""
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mainloop calls the root widget's mainloop method to
|
draws a line onto the canvas.
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ensure that the window remains visible on the screen.
|
|
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"""
|
"""
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self._root.mainloop()
|
self.create_line(
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|
line.point_a.x, line.point_a.y,
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|
line.point_b.x, line.point_b.y,
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fill=fill_colour,
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width=width,
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)
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|
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def draw_line(self, line: Line, fill_colour: str = "black") -> None:
|
def draw_cell_walls(self, walls: Dict[CellWallLabels, CellWall]) -> None:
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"""
|
"""
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draw_line draws a line on the canvas.
|
draws the walls of a cell onto the canvas.
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"""
|
"""
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line.draw(self._canvas, fill_colour)
|
for label in CellWallLabels:
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self._draw_line(
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line=walls[label].get_line(),
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fill_colour=walls[label].get_line_colour(),
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|
)
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|
self._redraw()
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|
|
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|
def draw_path(
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|
self,
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|
from_cell_centre: Point,
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|
to_cell_centre: Point,
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|
undo: bool = False
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|
) -> None:
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||||||
|
"""
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|
draws a path between the centre of this cell and
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|
the centre of the given cell.
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|
"""
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line = Line(from_cell_centre, to_cell_centre)
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fill_colour = "red"
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|
if undo:
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|
fill_colour = "grey"
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self._draw_line(line, fill_colour)
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|
self._redraw()
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||||||
|
|
18
line.py
Normal file
18
line.py
Normal file
|
@ -0,0 +1,18 @@
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|
class Point:
|
||||||
|
"""
|
||||||
|
Point represents the position of a point.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, x: int, y: int):
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||||||
|
self.x = x
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||||||
|
self.y = y
|
||||||
|
|
||||||
|
|
||||||
|
class Line:
|
||||||
|
"""
|
||||||
|
Line represents a graphical line.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, point_a: Point, point_b: Point) -> None:
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||||||
|
self.point_a = point_a
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||||||
|
self.point_b = point_b
|
38
main.py
38
main.py
|
@ -1,29 +1,29 @@
|
||||||
from graphics import Window
|
from app import App
|
||||||
from maze import Maze
|
|
||||||
from solver import Solver
|
|
||||||
|
|
||||||
|
|
||||||
def main():
|
def main():
|
||||||
window = Window(800, 800)
|
app = App()
|
||||||
|
app.mainloop()
|
||||||
|
#window = Window(800, 800)
|
||||||
|
|
||||||
game = Maze(
|
#game = Maze(
|
||||||
x_position=10,
|
# x_position=10,
|
||||||
y_position=10,
|
# y_position=10,
|
||||||
height=19,
|
# height=19,
|
||||||
width=19,
|
# width=19,
|
||||||
cell_height=40,
|
# cell_height=40,
|
||||||
cell_width=40,
|
# cell_width=40,
|
||||||
window=window
|
# window=window
|
||||||
)
|
#)
|
||||||
|
|
||||||
solver = Solver(game)
|
#solver = Solver(game)
|
||||||
|
|
||||||
if solver.solve(solver.solve_with_bfs_r, True):
|
#if solver.solve(solver.solve_with_bfs_r, True):
|
||||||
print("Maze solved successfully :)")
|
# print("Maze solved successfully :)")
|
||||||
else:
|
#else:
|
||||||
print("I'm unable to solve the maze :(")
|
# print("I'm unable to solve the maze :(")
|
||||||
|
|
||||||
window.mainloop()
|
#window.mainloop()
|
||||||
|
|
||||||
|
|
||||||
if __name__ == "__main__":
|
if __name__ == "__main__":
|
||||||
|
|
43
maze.py
43
maze.py
|
@ -1,8 +1,7 @@
|
||||||
from typing import List
|
from typing import List
|
||||||
from time import sleep
|
|
||||||
import random
|
import random
|
||||||
from enum import Enum
|
from enum import Enum
|
||||||
from graphics import Window
|
from graphics import Graphics
|
||||||
from cell import Cell, CellWallLabels
|
from cell import Cell, CellWallLabels
|
||||||
|
|
||||||
|
|
||||||
|
@ -93,7 +92,7 @@ class Maze:
|
||||||
width: int,
|
width: int,
|
||||||
cell_height: int,
|
cell_height: int,
|
||||||
cell_width: int,
|
cell_width: int,
|
||||||
window: Window = None,
|
graphics: Graphics = None,
|
||||||
seed=None,
|
seed=None,
|
||||||
) -> None:
|
) -> None:
|
||||||
self._x_position = x_position
|
self._x_position = x_position
|
||||||
|
@ -102,7 +101,7 @@ class Maze:
|
||||||
self._width = width
|
self._width = width
|
||||||
self._cell_height = cell_height
|
self._cell_height = cell_height
|
||||||
self._cell_width = cell_width
|
self._cell_width = cell_width
|
||||||
self._window = window
|
self._graphics = graphics
|
||||||
self._generator = "generator"
|
self._generator = "generator"
|
||||||
|
|
||||||
# initialise the random number generator
|
# initialise the random number generator
|
||||||
|
@ -112,18 +111,19 @@ class Maze:
|
||||||
self._cell_grid: List[List[Cell]] = []
|
self._cell_grid: List[List[Cell]] = []
|
||||||
self._create_cell_grid()
|
self._create_cell_grid()
|
||||||
|
|
||||||
# Open up the maze's entrance and exit.
|
def generate(self):
|
||||||
self._open_entrance_and_exit()
|
"""
|
||||||
|
randomly generates a new maze.
|
||||||
|
"""
|
||||||
|
|
||||||
start_position = MazePosition(
|
self._draw_cell_grid()
|
||||||
|
self._open_entrance_and_exit()
|
||||||
|
self._break_walls_r(MazePosition(
|
||||||
i=0,
|
i=0,
|
||||||
j=0,
|
j=0,
|
||||||
last_i=self._height-1,
|
last_i=self._height-1,
|
||||||
last_j=self._width-1,
|
last_j=self._width-1,
|
||||||
)
|
))
|
||||||
|
|
||||||
# Generate the maze.
|
|
||||||
self._break_walls_r(start_position)
|
|
||||||
|
|
||||||
def get_last_i(self) -> int:
|
def get_last_i(self) -> int:
|
||||||
"returns the last position of the Maze's outer list."
|
"returns the last position of the Maze's outer list."
|
||||||
|
@ -152,7 +152,6 @@ class Maze:
|
||||||
cursor_y,
|
cursor_y,
|
||||||
(cursor_x + self._cell_width),
|
(cursor_x + self._cell_width),
|
||||||
(cursor_y + self._cell_height),
|
(cursor_y + self._cell_height),
|
||||||
self._window
|
|
||||||
)
|
)
|
||||||
cells[j] = cell
|
cells[j] = cell
|
||||||
if j == self._width - 1:
|
if j == self._width - 1:
|
||||||
|
@ -162,9 +161,6 @@ class Maze:
|
||||||
self._cell_grid[i] = cells
|
self._cell_grid[i] = cells
|
||||||
cursor_y += self._cell_height
|
cursor_y += self._cell_height
|
||||||
|
|
||||||
if self._window:
|
|
||||||
self._draw_cell_grid()
|
|
||||||
|
|
||||||
def _draw_cell_grid(self) -> None:
|
def _draw_cell_grid(self) -> None:
|
||||||
"""
|
"""
|
||||||
draws all the cells on the maze with a short pause between each cell
|
draws all the cells on the maze with a short pause between each cell
|
||||||
|
@ -186,7 +182,7 @@ class Maze:
|
||||||
self._cell_grid[self._height-1][self._width -
|
self._cell_grid[self._height-1][self._width -
|
||||||
1].configure_walls(bottom=False)
|
1].configure_walls(bottom=False)
|
||||||
|
|
||||||
if self._window:
|
if self._graphics:
|
||||||
self._draw_cell(0, 0)
|
self._draw_cell(0, 0)
|
||||||
self._draw_cell(
|
self._draw_cell(
|
||||||
i=self._height-1,
|
i=self._height-1,
|
||||||
|
@ -222,12 +218,13 @@ class Maze:
|
||||||
possible_directions.append(direction)
|
possible_directions.append(direction)
|
||||||
|
|
||||||
if len(possible_directions) == 0:
|
if len(possible_directions) == 0:
|
||||||
if self._window:
|
if self._graphics:
|
||||||
self._draw_cell(i=current_position.i, j=current_position.j)
|
self._draw_cell(i=current_position.i, j=current_position.j)
|
||||||
break
|
break
|
||||||
|
|
||||||
chosen_direction = random.choice(possible_directions)
|
chosen_direction = random.choice(possible_directions)
|
||||||
next_position = current_position.get_adjacent_position(chosen_direction)
|
next_position = current_position.get_adjacent_position(
|
||||||
|
chosen_direction)
|
||||||
|
|
||||||
if chosen_direction is MazeDirection.ABOVE:
|
if chosen_direction is MazeDirection.ABOVE:
|
||||||
self._configure_cell_walls(
|
self._configure_cell_walls(
|
||||||
|
@ -274,7 +271,7 @@ class Maze:
|
||||||
left=False,
|
left=False,
|
||||||
)
|
)
|
||||||
|
|
||||||
if self._window:
|
if self._graphics:
|
||||||
self._draw_cell(i=current_position.i, j=current_position.j)
|
self._draw_cell(i=current_position.i, j=current_position.j)
|
||||||
|
|
||||||
self._break_walls_r(next_position)
|
self._break_walls_r(next_position)
|
||||||
|
@ -284,18 +281,14 @@ class Maze:
|
||||||
draws the cells in an animated way.
|
draws the cells in an animated way.
|
||||||
"""
|
"""
|
||||||
|
|
||||||
self._cell_grid[i][j].draw()
|
self._graphics.draw_cell_walls(self._cell_grid[i][j].get_walls())
|
||||||
self._window.redraw()
|
|
||||||
sleep(0.05)
|
|
||||||
|
|
||||||
def _draw_path(self, current_cell: Cell, next_cell: Cell, undo: bool = False) -> None:
|
def _draw_path(self, current_cell: Cell, next_cell: Cell, undo: bool = False) -> None:
|
||||||
"""
|
"""
|
||||||
draws a path between two cells in an animated way.
|
draws a path between two cells in an animated way.
|
||||||
"""
|
"""
|
||||||
|
|
||||||
current_cell.draw_move(next_cell, undo)
|
self._graphics.draw_path(current_cell.centre(), next_cell.centre(), undo)
|
||||||
self._window.redraw()
|
|
||||||
sleep(0.05)
|
|
||||||
|
|
||||||
def mark_cell_as_visited(self, i: int, j: int, visitor: str) -> None:
|
def mark_cell_as_visited(self, i: int, j: int, visitor: str) -> None:
|
||||||
"""
|
"""
|
||||||
|
|
1
tests.py
1
tests.py
|
@ -65,6 +65,7 @@ class Tests(unittest.TestCase):
|
||||||
None,
|
None,
|
||||||
None,
|
None,
|
||||||
)
|
)
|
||||||
|
m.generate()
|
||||||
self.assertFalse(m._cell_grid[0][0].wall_exists(CellWallLabels.TOP))
|
self.assertFalse(m._cell_grid[0][0].wall_exists(CellWallLabels.TOP))
|
||||||
self.assertFalse(
|
self.assertFalse(
|
||||||
m._cell_grid[number_of_cell_rows - 1]
|
m._cell_grid[number_of_cell_rows - 1]
|
||||||
|
|
Loading…
Reference in a new issue