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Last active March 27, 2024 18:12
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# Create a simple maze by drawing a grid of squares defined in a 2D list of
# booleans and an ASCII character to represent the player. The player can move
# along squares marked "1".
#
# Run with the following command:
# python3 pygame-ascii-maze.py
import pygame
from pygame.locals import *
grid = [[0, 0, 0, 0, 0],
[1, 1, 0, 0, 0],
[0, 1, 0, 1, 1],
[0, 1, 0, 1, 0],
[0, 1, 1, 1, 0]]
resolution = (160, 160)
cell_margin = 14
cell_colors = (255, 255, 255), (0, 0, 0)
player_character = "@"
player_color = (255, 0, 0)
player_size = 20
current_position = [0, 1]
def main():
pygame.init()
screen = pygame.display.set_mode(resolution)
screen.fill(cell_colors[1])
player = pygame.font.Font(None, player_size).render(player_character,
False, player_color)
while True:
for event in pygame.event.get():
if event.type == KEYDOWN:
key = event.key
if key == K_UP:
move(0, -1)
elif key == K_RIGHT:
move(1, 0)
elif key == K_DOWN:
move(0, 1)
elif key == K_LEFT:
move(-1, 0)
elif event.type == QUIT:
return
draw_maze(screen)
draw_player(player, screen)
pygame.display.update()
def draw_maze(screen):
for row in range(len(grid)):
for column in range(len(grid[0])):
screen.fill(cell_colors[grid[column][row]],
get_cell_rect((row, column), screen))
def get_cell_rect(coordinates, screen):
row, column = coordinates
cell_width = screen.get_width() / len(grid)
adjusted_width = cell_width - cell_margin
return pygame.Rect(row * cell_width + cell_margin / 2,
column * cell_width + cell_margin / 2,
adjusted_width, adjusted_width)
def draw_player(player, screen):
rect = player.get_rect()
rect.center = get_cell_rect(current_position, screen).center
screen.blit(player, rect)
def move(dx, dy):
x, y = current_position
nx, ny = x + dx, y + dy
if nx >= 0 and nx < len(grid) and ny >= 0 and ny < len(grid[0]) and \
grid[ny][nx]:
current_position[0] = nx
current_position[1] = ny
if __name__ == "__main__":
main()
pygame.quit()
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