thermoprint-homework/jobs/maze.py

108 lines
3.3 KiB
Python

import random
from PIL import Image, ImageDraw
from .base import Job
class MazeJob(Job):
def __init__(self):
self.width = 14
self.height = 32
def get_name(self):
return "BLUDISTE"
def configure(self):
print("\nSelect Difficulty:")
print(" [1] Easy")
print(" [2] Medium")
print(" [3] Hard")
choice = input("Choice [2]: ").strip()
if choice == '1':
self.height = 8
elif choice == '3':
self.height = 32
else:
self.height = 18
def print_body(self, p):
# Width and Height in cells.
# Total width in chars = 2 * w + 1.
# w=15 -> 31 chars (Fits comfortably on 80mm printers, tight on 58mm)
w = self.width
h = self.height
maze = self.generate_maze(w, h)
p.text("Najdi cestu z S do E:\n\n")
# Generate and print image
img = self._generate_image(maze)
p.set(align='center')
p.image(img, impl="bitImageColumn")
p.set(align='left')
p.text("\n")
def _generate_image(self, maze):
# Cell size in pixels
cell_size = 16
rows = len(maze)
cols = len(maze[0])
w, h = cols * cell_size, rows * cell_size
# Create new 1-bit image (White background)
# '1' mode = 1-bit pixels, black and white, stored with one pixel per byte
img = Image.new('1', (w, h), 1)
draw = ImageDraw.Draw(img)
for r in range(rows):
for c in range(cols):
x = c * cell_size
y = r * cell_size
# Draw walls as black rectangles
if maze[r][c] == '#':
# fill=0 means Black in '1' mode
draw.rectangle([x, y, x + cell_size, y + cell_size], fill=0)
elif maze[r][c] == 'S':
draw.text((x + 5, y + 2), "S", fill=0)
elif maze[r][c] == 'E':
draw.text((x + 5, y + 2), "E", fill=0)
return img
def generate_maze(self, width, height):
rows = 2 * height + 1
cols = 2 * width + 1
# Initialize grid with walls
maze = [['#' for _ in range(cols)] for _ in range(rows)]
# Starting cell (1, 1)
stack = [(1, 1)]
maze[1][1] = ' '
while stack:
x, y = stack[-1]
# Directions: Up, Down, Left, Right (step 2 to jump over walls)
directions = [(0, -2), (0, 2), (-2, 0), (2, 0)]
random.shuffle(directions)
moved = False
for dx, dy in directions:
nx, ny = x + dx, y + dy
# Check bounds (ensure we stay within the outer border)
if 1 <= nx < rows - 1 and 1 <= ny < cols - 1:
if maze[nx][ny] == '#': # If unvisited
maze[nx][ny] = ' ' # Mark cell as path
maze[x + dx // 2][y + dy // 2] = ' ' # Knock down wall
stack.append((nx, ny))
moved = True
break
if not moved:
stack.pop()
# Create Entrance (S) and Exit (E)
maze[1][0] = 'S'
maze[rows - 2][cols - 1] = 'E'
return maze