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blobby_algorithm.py
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blobby_algorithm.py
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from randomdict import RandomDict
import sys, time, random
# Make set S with set A and set B
# Take a random cell from S
# check its neighbours and add it to subset
# index = y*width + x
height = 20
width = 40
FPS = 0
seed = 1
ROOM_SIZE = 4
# random.seed(seed)
TOP_LEFT_CORNER = u'\u2554' # ╔
TOP_RIGHT_CORNER = u'\u2557' # ╗
BOT_LEFT_CORNER = u'\u255a' # ╚
BOT_RIGHT_CORNER = u'\u255d' # ╝
VERT_WALL = u'\u2551' # ║
HORZ_WALL = u'\u2550' # ═
VERT_WALL_RIGHT = u'\u2560' # ╠
VERT_WALL_LEFT = u'\u2563' # ╣
HORZ_WALL_UP = u'\u2569' # ╩
HORZ_WALL_DOWN = u'\u2566' # ╦
WALL_ALL = u'\u256c' # ╬
SPACE = " "
N,S,W,E = -width, width, -1, 1
NO, DOWN, RIGHT, ALL = 0,1,2,3
MOVE_X = {N : 0, S : 0, W : -1, E : 1}
MOVE_Y = {N : -1, S : 1, W : 0, E : 0}
set_s = RandomDict()
grid = [[0]*width for i in range(height)]
for y in range(height):
for x in range(width):
set_s[y*width + x] = (x,y)
if x == width-1:
grid[y][x] |= RIGHT
if y == height-1:
grid[y][x] |= DOWN
# S = {A : {}, B : {}}
# S = {0: (0,0), 1 (0,1), ..., 99 : (9,9)}
# U = {A : }
def print_grid(grid, set_a_path_grid, set_b_path_grid):
height, width = len(grid), len(grid[0])
maze_str = ""
maze_str += TOP_LEFT_CORNER # ╔ Always first
for x in range(width - 1):
# ═══╦ if there is a vertical wall below it else ════
maze_str += HORZ_WALL*3 + HORZ_WALL_DOWN if grid[0][x] & RIGHT != 0 else HORZ_WALL*4
maze_str += HORZ_WALL*3 + TOP_RIGHT_CORNER + "\n" # ═══╗ # Always last
for y in range(height):
first_line = VERT_WALL # ║, Always like this
second_line = VERT_WALL_RIGHT if grid[y][0] & DOWN != 0 else VERT_WALL
if y == height - 1:
second_line = BOT_LEFT_CORNER # ╚, if we reach the end
for x in range(width):
# " ║" if there needs to be a wall else " "
if set_a_path_grid[y][x]:
path_chr = u'▓'
elif set_b_path_grid[y][x]:
path_chr = u'░'
else:
path_chr = SPACE
first_line += path_chr*3 + VERT_WALL if grid[y][x] & RIGHT != 0 else path_chr*4
if grid[y][x] == (RIGHT + DOWN):
# ═══╝ | ═══╣ |═══╬ | ═══╩
try:
if grid[y+1][x] & RIGHT != 0 and grid[y][x+1] & DOWN != 0:
second_line += HORZ_WALL*3 + WALL_ALL # ═══╬
elif grid[y+1][x] & RIGHT != 0:
second_line += HORZ_WALL*3 + VERT_WALL_LEFT # ═══╣
elif grid[y][x+1] & DOWN != 0:
second_line += HORZ_WALL*3 + HORZ_WALL_UP # ═══╩
else:
raise
except:
if y != height - 1 and x == width - 1:
second_line += HORZ_WALL*3 + VERT_WALL_LEFT # ═══╣
elif y == height -1 and x != width - 1:
second_line += HORZ_WALL*3 + HORZ_WALL_UP # ═══╩
else:
second_line += HORZ_WALL*3 + BOT_RIGHT_CORNER # ═══╝
elif grid[y][x] == RIGHT:
# " ║" | " ╚" | " ╠"
try:
if grid[y+1][x] & RIGHT != 0 and grid[y][x+1] & DOWN != 0:
second_line += path_chr*3 + VERT_WALL_RIGHT # " ╠"
elif grid[y][x+1] & DOWN != 0:
second_line += path_chr*3 + BOT_LEFT_CORNER # " ╚"
else:
raise
except:
second_line += path_chr*3 + VERT_WALL # " ║"
elif grid[y][x] == DOWN:
# ════ | ═══╗ | ═══╦
try:
if grid[y+1][x] & RIGHT != 0 and grid[y][x+1] & DOWN != 0:
second_line += HORZ_WALL*3 + HORZ_WALL_DOWN # ═══╦
elif grid[y+1][x] & RIGHT != 0:
second_line += HORZ_WALL*3 + TOP_RIGHT_CORNER # ═══╗
else:
raise
except:
second_line += HORZ_WALL*4 # ════
else:
# " ║" | " ╔" | " ═"
try:
if grid[y][x+1] & DOWN != 0 and grid[y+1][x] & RIGHT == 0:
second_line += path_chr*3 + HORZ_WALL # " ═"
elif grid[y][x+1] & DOWN != 0:
second_line += path_chr*3 + TOP_LEFT_CORNER # " ╔"
elif grid[y+1][x] & RIGHT != 0:
second_line += path_chr*3 + VERT_WALL # " ║"
else:
raise
except:
second_line += path_chr*4 # " "
maze_str += first_line + "\n"
maze_str += second_line + "\n"
sys.stdout.write("\r" + "\n"*(51-(width*2 + 1)) + "{}".format("\n" + maze_str))
time.sleep(FPS)
def blobby_recursive(grid, set_s):
if len(set_s) < ROOM_SIZE:
return None
set_a_path_grid = [[False]*len(grid[0]) for i in range(len(grid))]
set_b_path_grid = [[False]*len(grid[0]) for i in range(len(grid))]
print_grid(grid, set_a_path_grid, set_b_path_grid)
set_u = RandomDict()
x_1 ,y_1 = set_s.random_value()
del set_s[y_1*width + x_1]
x_2, y_2 = set_s.random_value()
del set_s[y_2*width + x_2]
set_u["A"] = RandomDict()
set_u["B"] = RandomDict()
set_u["A"][y_1*width + x_1] = (x_1, y_1)
set_u["B"][y_2*width + x_2] = (x_2, y_2)
set_a_path_grid[y_1][x_1] = True
set_b_path_grid[y_2][x_2] = True
set_a = RandomDict()
set_b = RandomDict()
print_grid(grid, set_a_path_grid, set_b_path_grid)
path_count = 0
while set_u["A"] or set_u["B"]:
random_set_str = "A" if random.randint(0,1) == 0 else "B"
try:
c_x, c_y = set_u[random_set_str].random_value()
except:
random_set_str = "A" if random_set_str == "B" else "B"
c_x, c_y = set_u[random_set_str].random_value()
del set_u[random_set_str][c_y*width + c_x]
if random_set_str == "A":
set_a[c_y*width + c_x] = (c_x, c_y)
else:
set_b[c_y*width + c_x] = (c_x, c_y)
for direction in [N,S,E,W]:
try:
if set_s[(c_y*width + c_x) + direction]:
path_count += 1
nx, ny = c_x + MOVE_X[direction], c_y + MOVE_Y[direction]
if 0 <= nx < width and 0 <= y < height:
set_u[random_set_str][(c_y*width + c_x) + direction] = (nx, ny)
if random_set_str == "A":
set_a_path_grid[ny][nx] = True
else:
set_b_path_grid[ny][nx] = True
del set_s[(c_y*width + c_x) + direction]
else:
raise
except:
continue
if path_count >= 8:
print_grid(grid, set_a_path_grid, set_b_path_grid)
path_count = 0
wall_cords = make_walls(set_a, set_b, grid)
wall_cords += make_walls(set_b, set_a, grid)
if len(wall_cords) > 0:
print_grid(grid, set_a_path_grid, set_b_path_grid)
r_x, r_y, wall_direction = random.choice(wall_cords)
grid[r_y][r_x] ^= wall_direction
if len(wall_cords) > 0:
print_grid(grid, set_a_path_grid, set_b_path_grid)
set_max = set_a if len(set_a) >= len(set_b) else set_b
set_min = set_b if len(set_a) >= len(set_b) else set_a
blobby_recursive(grid, set_a)
blobby_recursive(grid, set_b)
def make_walls(set_to_check, set_to_observe, grid):
wall_coords = []
for index, coordinates in set_to_check.items():
x,y = coordinates
try:
if x != width - 1:
set_to_observe[index + E]
grid[y][x] |= RIGHT
wall_coords.append((x,y,RIGHT))
except:
pass
try:
if y != height - 1:
set_to_observe[index + S]
grid[y][x] |= DOWN
wall_coords.append((x,y,DOWN))
except:
pass
return wall_coords
while True:
set_s = RandomDict()
grid = [[0]*width for i in range(height)]
for y in range(height):
for x in range(width):
set_s[y*width + x] = (x,y)
if x == width-1:
grid[y][x] |= RIGHT
if y == height-1:
grid[y][x] |= DOWN
blobby_recursive(grid, set_s)
set_a_path_grid = [[False]*len(grid[0]) for i in range(len(grid))]
set_b_path_grid = [[False]*len(grid[0]) for i in range(len(grid))]
print_grid(grid, set_a_path_grid, set_b_path_grid)