def main():
# Setup the screen.
bext.bg('black')
bext.clear()
global FISHES, BUBBLERS, BUBBLES, KELPS
# Generate the global variables:
FISHES = []
for i in range(NUM_FISH):
FISHES.append(generateFish())
BUBBLERS = [] # NOTE: Bubbles are drawn, but not the bubblers themselves.
for i in range(NUM_BUBBLERS):
# Each bubbler starts at a random position.
BUBBLERS.append(random.randint(0, WIDTH - 1))
BUBBLES = []
KELPS = []
for i in range(NUM_KELP):
kelp = {'x': random.randint(0, WIDTH - 2), 'segments': []}
# Generate each segment of the kelp.
for i in range(random.randint(6, HEIGHT - 1)):
kelp['segments'].append(random.choice(['(', ')']))
KELPS.append(kelp)
# Run the simulation:
step = 1
while True:
drawAquarium(step)
time.sleep(1 / FRAMES_PER_SECOND)
clearAquarium()
#bext.clear()
step += 1
def main():
theFloor = getNewFloor()
paintedAreas = set()
# Generate painters:
painters = []
for color in THE_PAINTERS:
painters.append(Painter(color, theFloor))
bext.fg('black')
bext.clear()
while True: # Main simulation loop.
for painter in painters:
# Keep track of the painted floors:
paintedAreas.add((painter.x, painter.y))
if len(paintedAreas) == WIDTH * HEIGHT:
# Move the text cursor to the bottom right so that
# new text doesn't overwrite our painting.
bext.goto(bext.width() - 1, bext.height() - 1)
print() # Print a newline.
print('Seed: {} Width: {} Height: {}'.format(
SEED, (WIDTH + 1) * 2, HEIGHT))
sys.exit() # The floor is completely painted, so quit.
painter.move()
sys.stdout.flush()
time.sleep(PAUSE_LENGTH)
def main():
global FISHES, BUBBLERS, BUBBLES, KELPS, STEP
bext.bg('black')
bext.clear()
# Generate the global variables:
FISHES = []
for i in range(NUM_FISH):
FISHES.append(generateFish())
# NOTE: Bubbles are drawn, but not the bubblers themselves.
BUBBLERS = []
for i in range(NUM_BUBBLERS):
# Each bubbler starts at a random position.
BUBBLERS.append(random.randint(LEFT_EDGE, RIGHT_EDGE))
BUBBLES = []
KELPS = []
for i in range(NUM_KELP):
kelpx = random.randint(LEFT_EDGE, RIGHT_EDGE)
kelp = {'x': kelpx, 'segments': []}
# Generate each segment of the kelp:
for i in range(random.randint(6, HEIGHT - 1)):
kelp['segments'].append(random.choice(['(', ')']))
KELPS.append(kelp)
# Run the simulation:
STEP = 1
while True:
simulateAquarium()
drawAquarium()
time.sleep(1 / FRAMES_PER_SECOND)
clearAquarium()
STEP += 1
def main():
bext.bg('black')
bext.fg('white')
bext.clear()
print('''Flood It, by Al Sweigart [email protected]
Set the color of the upper left square, which fills in all the
adjacent squares of that color. Try to make the entire board the
same color.''')
gameBoard = getNewBoard()
movesLeft = 20
while True: # Main game loop.
displayBoard(gameBoard)
print('Moves left:', movesLeft)
playerMove = askForPlayerMove()
changeTile(playerMove, gameBoard, 0, 0)
movesLeft -= 1
if hasWon(gameBoard):
displayBoard(gameBoard)
print('You have won!')
break
elif movesLeft == 0:
displayBoard(gameBoard)
print('You have run out of moves!')
break
def main():
global FISHES, BUBBLERS, BUBBLES, KELPS
# Generate the global variables:
FISHES = []
for i in range(NUM_FISH):
FISHES.append(generateFish())
BUBBLERS = [] # NOTE: Bubbles are drawn, but not the bubblers themselves.
for i in range(NUM_BUBBLERS):
# Each bubbler starts at a random position.
BUBBLERS.append(random.randint(0, WIDTH - 1))
BUBBLES = []
KELPS = []
for i in range(NUM_KELP):
kelp = {'x': random.randint(0, WIDTH - 2), 'segments': []}
# Generate each segment of the kelp.
for i in range(random.randint(6, HEIGHT - 1)):
kelp['segments'].append(random.choice(['(', ')']))
KELPS.append(kelp)
# Run the simulation:
step = 1
while True:
try:
drawAquarium(step)
time.sleep(PAUSE)
bext.clear()
step += 1
except KeyboardInterrupt:
sys.exit()
def draw():
global DESIRED, generations
most_fit = population[fittest_index]
most_fit_score = fitness_pool[fittest_index]
bext.clear()
# bext.goto(0, 0)
generations = generations + 1
print("most fit: " + "".join(most_fit))
print("generations: " + str(generations))
return most_fit_score == fitness(DESIRED)
def main():
global PAUSE
step = 0
# bext.bg('white')
while True:
try:
update()
bext.clear()
draw(step)
time.sleep(PAUSE)
step += 1
except KeyboardInterrupt:
sys.exit()
def main():
"""Run the Forest Fire simulation."""
forest = createNewForest()
bext.clear()
while True: # Main program loop.
displayForest(forest)
# Run a single simulation step:
nextForest = {'width': forest['width'], 'height': forest['height']}
for x in range(forest['width']):
for y in range(forest['height']):
if (x, y) in nextForest:
# If we've already set nextForest[(x, y)] on a
# previous iteration, just do nothing here:
continue
if (forest[(x, y)] == EMPTY) and (
random.randint(1, 10000) / 100 <= GROW_CHANCE):
# Grow a tree in this empty space:
nextForest[(x, y)] = TREE
elif (forest[(x, y)] == TREE) and (
random.randint(1, 10000) / 100 <= LIGHTNING_CHANCE):
# Lightning sets this tree on fire:
nextForest[(x, y)] = FIRE
elif forest[(x, y)] == FIRE:
# Fire spreads to neighboring trees:
for ix in range(-1, 2):
for iy in range(-1, 2):
if (x + ix, y + iy) in forest:
if forest[(x + ix, y + iy)] == TREE:
nextForest[(x + ix, y + iy)] = FIRE
else:
nextForest[(x + ix,
y + iy)] = forest[(x + ix,
y + iy)]
# The tree has burned down now, so erase it:
nextForest[(x, y)] = EMPTY
else:
# Just copy the existing object:
nextForest[(x, y)] = forest[(x, y)]
forest = nextForest
time.sleep(PAUSE_LENGTH)
def main():
global PAUSE, MAX_POPULATION, population, next_population
step = 0
for i in range(0, MAX_POPULATION):
population.append(generate_random())
while True:
try:
update()
bext.clear()
if draw():
return
population = next_population
time.sleep(PAUSE)
step += 1
except KeyboardInterrupt:
sys.exit()
def main():
# Generate snake data structures:
snakes = []
for i in range(NUMBER_OF_SNAKES):
snakes.append(Snake())
bext.clear()
while True: # Main simulation loop.
# Draw quit message.
bext.fg('white')
bext.goto(0, 0)
print('Ctrl-C to quit.', end='')
for snake in snakes:
snake.display()
for snake in snakes:
snake.moveRandom()
sys.stdout.flush()
time.sleep(PAUSE_LENGTH)
def main():
# Generate worm data structures:
worms = []
for i in range(NUMBER_OF_WORMS):
worms.append(Worm())
bext.clear()
while True: # Main simulation loop.
# Draw quit message.
bext.fg('white')
bext.goto(0, 0)
print('Ctrl-C to quit.', end='')
for worm in worms:
worm.display()
for worm in worms:
worm.moveRandom()
sys.stdout.flush()
time.sleep(PAUSE_LENGTH)
def main():
theFloor = getNewFloor()
# Generate painters:
painters = []
for color in THE_PAINTERS:
painters.append(Painter(color, theFloor))
bext.fg('black')
bext.clear()
while True: # Main simulation loop.
# Draw quit message.
bext.bg('white')
bext.goto(0, 0)
print('Ctrl-C to quit.', end='')
for painter in painters:
painter.move()
sys.stdout.flush()
time.sleep(PAUSE_LENGTH)
def main():
bext.fg('yellow')
bext.clear()
# Draw the quit message:
bext.goto(0, 0)
print('Ctrl-C to quit.', end='')
# Display the walls of the hourglass:
for wall in HOURGLASS:
bext.goto(wall[X], wall[Y])
print(WALL, end='')
while True: # Main program loop.
allSand = list(INITIAL_SAND)
# Draw the initial sand:
for sand in allSand:
bext.goto(sand[X], sand[Y])
print(SAND, end='')
runHourglassSimulation(allSand)
def main():
bext.bg('black')
bext.fg('white')
bext.clear()
print('''Floodplane, by Al Sweigart [email protected]
Set the upper left color/shape, which fills in all the
adjacent squares of that color/shape. Try to make the
entire board the same color/shape.''')
print('Do you want to play in colorblind mode? Y/N')
response = input('> ')
if response.upper().startswith('Y'):
displayMode = SHAPE_MODE
else:
displayMode = COLOR_MODE
gameBoard = getNewBoard()
movesLeft = MOVES_PER_GAME
while True: # Main game loop.
displayBoard(gameBoard, displayMode)
print('Moves left:', movesLeft)
playerMove = askForPlayerMove(displayMode)
changeTile(playerMove, gameBoard, 0, 0)
movesLeft -= 1
if hasWon(gameBoard):
displayBoard(gameBoard, displayMode)
print('You have won!')
break
elif movesLeft == 0:
displayBoard(gameBoard, displayMode)
print('You have run out of moves!')
break
def main():
bext.clear()
# Generate some dots.
dots = []
for i in range(NUMBER_OF_DOTS):
dots.append({
COLOR: random.choice(COLORS),
X: random.randint(1, WIDTH - 2),
Y: random.randint(1, HEIGHT - 2),
DIR: random.choice(DIRECTIONS)
})
while True: # Main program loop.
for dot in dots: # Handle each dot in the dots list.
# Erase the dot's current location:
bext.goto(dot[X], dot[Y])
print(' ', end='')
# Move the dot:
if dot[DIR] == UP_RIGHT:
dot[X] += 1
dot[Y] -= 1
elif dot[DIR] == UP_LEFT:
dot[X] -= 1
dot[Y] -= 1
elif dot[DIR] == DOWN_RIGHT:
dot[X] += 1
dot[Y] += 1
elif dot[DIR] == DOWN_LEFT:
dot[X] -= 1
dot[Y] += 1
# Draw the dots at their new location:
bext.goto(dot[X], dot[Y])
bext.fg(dot[COLOR])
print(DOT_CHAR, end='')
# See if the dot bounces off the corners:
if dot[X] == 0 and dot[Y] == 0:
dot[DIR] = DOWN_RIGHT
elif dot[X] == 0 and dot[Y] == HEIGHT - 1:
dot[DIR] = UP_RIGHT
elif dot[X] == WIDTH - 1 and dot[Y] == 0:
dot[DIR] = DOWN_LEFT
elif dot[X] == WIDTH - 1 and dot[Y] == HEIGHT - 1:
dot[DIR] = UP_LEFT
# See if the dot bounces off the left edge:
elif dot[X] == 0 and dot[DIR] == UP_LEFT:
dot[DIR] = UP_RIGHT
elif dot[X] == 0 and dot[DIR] == DOWN_LEFT:
dot[DIR] = DOWN_RIGHT
# See if the dot bounces off the right edge:
elif dot[X] == WIDTH - 1 and dot[DIR] == UP_RIGHT:
dot[DIR] = UP_LEFT
elif dot[X] == WIDTH - 1 and dot[DIR] == DOWN_RIGHT:
dot[DIR] = DOWN_LEFT
# See if the dot bounces off the top edge:
elif dot[Y] == 0 and dot[DIR] == UP_LEFT:
dot[DIR] = DOWN_LEFT
elif dot[Y] == 0 and dot[DIR] == UP_RIGHT:
dot[DIR] = DOWN_RIGHT
# See if the dot bounces off the bottom edge:
elif dot[Y] == HEIGHT - 1 and dot[DIR] == DOWN_LEFT:
dot[DIR] = UP_LEFT
elif dot[Y] == HEIGHT - 1 and dot[DIR] == DOWN_RIGHT:
dot[DIR] = UP_RIGHT
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE_AMOUNT)
def main():
print('Conway\'s Game of Life')
print('By Al Sweigart [email protected]')
print('Press Ctrl-C to quit...')
time.sleep(3)
# Create random cells:
currentCells = {}
nextCells = {}
previousCells = {}
for x in range(WIDTH):
for y in range(HEIGHT):
if random.randint(0, 1) == 0:
nextCells[x, y] = True
bext.clear()
while True: # Main program loop.
previousCells = currentCells
currentCells = nextCells
# Print the cells:
for y in range(0, HEIGHT, 2): # Skip every other row.
for x in range(WIDTH):
prevTopHalf = previousCells.get((x, y), False)
curTopHalf = currentCells.get((x, y), False)
topHalfHasChanged = prevTopHalf != curTopHalf
prevBottomHalf = previousCells.get((x, y + 1), False)
curBottomHalf = currentCells.get((x, y + 1), False)
bottomHalfHasChanged = prevBottomHalf != curBottomHalf
if topHalfHasChanged or bottomHalfHasChanged:
bext.goto(x, y // 2)
if curTopHalf and curBottomHalf:
# Fill in both halves:
print(FULL_BLOCK, end='')
elif curTopHalf and not curBottomHalf:
# Fill in top half:
print(TOP_BLOCK, end='')
elif not curTopHalf and curBottomHalf:
# Fill in bottom half:
print(BOTTOM_BLOCK, end='')
elif not curTopHalf and not curBottomHalf:
# Fill in nothing:
print(' ', end='')
print() # Print a newline at the end of the row.
print('Press Ctrl-C to quit.', end='', flush=True)
# Calculate next cells based on current cells:
nextCells = {}
for x in range(WIDTH):
for y in range(HEIGHT):
# Get neighboring coordinates:
leftCoord = (x - 1) % WIDTH
rightCoord = (x + 1) % WIDTH
topCoord = (y - 1) % HEIGHT
bottomCoord = (y + 1) % HEIGHT
# Count number of living neighbors:
numNeighbors = 0
if (leftCoord, topCoord) in currentCells:
numNeighbors += 1
if (x, topCoord) in currentCells:
numNeighbors += 1
if (rightCoord, topCoord) in currentCells:
numNeighbors += 1
if (leftCoord, y) in currentCells:
numNeighbors += 1
if (rightCoord, y) in currentCells:
numNeighbors += 1
if (leftCoord, bottomCoord) in currentCells:
numNeighbors += 1
if (x, bottomCoord) in currentCells:
numNeighbors += 1
if (rightCoord, bottomCoord) in currentCells:
numNeighbors += 1
# Set cell based on Conway's Game of Life rules:
if currentCells.get((x, y), False):
if numNeighbors in (2, 3):
nextCells[x, y] = True
else:
if numNeighbors == 3:
nextCells[x, y] = True
time.sleep(PAUSE_LENGTH) # Pause to reduce flickering.
def main():
# Create a new board data structure.
board = {'width': WIDTH, 'height': HEIGHT}
for x in range(WIDTH):
for y in range(HEIGHT):
if (random.randint(1, 10000) / 100) <= INITIAL_TREE_DENSITY:
board[(x, y)] = 'A' # Start as a tree.
else:
board[(x, y)] = ' ' # Start as an empty space.
# Create firewalls
for i in range(NUMBER_OF_FIREWALLS):
if random.randint(0, 1) == 0:
# Make a horizontal firewall:
x = random.randint(0, max(WIDTH - FIREWALL_LENGTH - 1, 0))
y = random.randint(0, HEIGHT)
for ix in range(FIREWALL_LENGTH):
board[(x + ix, y)] = WALL_CHAR
else:
# Make a vertical firewall:
x = random.randint(0, WIDTH)
y = random.randint(0, max(HEIGHT - (FIREWALL_LENGTH // 2) - 1, 0))
for iy in range(FIREWALL_LENGTH // 2):
board[(x, y + iy)] = WALL_CHAR
bext.clear()
while True: # Main program loop.
# Draw the board data structure.
bext.goto(0, 0)
for y in range(board['height']):
for x in range(board['width']):
if board[(x, y)] == 'A':
bext.fg('green')
print('A', end='')
elif board[(x, y)] == 'W':
bext.fg('red')
print('W', end='')
else:
bext.fg('reset')
print(board[(x, y)], end='')
print()
bext.fg('reset') # Use the default font color.
print('Grow chance: {}% Lightning chance: {}%'.format(GROW_CHANCE, LIGHTNING_CHANCE))
print('Press Ctrl-C to quit.')
# Run a single simulation step:
nextBoard = {'width': board['width'], 'height': board['height']}
for x in range(board['width']):
for y in range(board['height']):
if (x, y) in nextBoard:
# If we've already set nextBoard[(x, y)] on a previous iteration, just do nothing here.
continue
if board[(x, y)] == ' ' and (random.randint(1, 10000) / 100) <= GROW_CHANCE:
# Grow a tree in this empty space:
nextBoard[(x, y)] = 'A' # The letter 'A' sort of looks like a tree.
elif board[(x, y)] == 'A' and (random.randint(1, 10000) / 100) <= LIGHTNING_CHANCE:
# Lightning sets this tree on fire:
nextBoard[(x, y)] = 'W'
elif board[(x, y)] == 'W':
# Fire spreads to neighboring trees.
for ix in range(-1, 2):
for iy in range(-1, 2):
#if (0 <= x + ix < board['width']) and (0 <= y + iy < board['height']):
if (x + ix, y + iy) in board:
if board[(x + ix, y + iy)] == 'A':
nextBoard[(x + ix, y + iy)] = 'W'
else:
nextBoard[(x + ix, y + iy)] = board[(x + ix, y + iy)]
nextBoard[(x, y)] = ' ' # The original tree has burned down now.
else:
# Just copy the existing object.
nextBoard[(x, y)] = board[(x, y)]
board = nextBoard
time.sleep(PAUSE_LENGTH)
def main():
bext.fg(ANT_COLOR) # The ants' color is the foreground color.
bext.bg(WHITE_TILE) # Set the background to white to start.
bext.clear()
# Create a new board data structure:
board = {'width': WIDTH, 'height': HEIGHT}
# Create ant data structures:
ants = []
for i in range(NUMBER_OF_ANTS):
ant = {
'x': random.randint(0, WIDTH - 1),
'y': random.randint(0, HEIGHT - 1),
'direction': random.choice([NORTH, SOUTH, EAST, WEST]),
}
ants.append(ant)
# Keep track of which tiles have changed and need to be redrawn on
# the screen:
changedTiles = []
while True: # Main program loop.
displayBoard(board, ants, changedTiles)
changedTiles = []
# nextBoard is what the board will look like on the next step in
# the simulation. Start with a copy of the current step's board:
nextBoard = copy.copy(board)
# Run a single simulation step for each ant:
for ant in ants:
if board.get((ant['x'], ant['y']), False) == True:
nextBoard[(ant['x'], ant['y'])] = False
# Turn clockwise:
if ant['direction'] == NORTH:
ant['direction'] = EAST
elif ant['direction'] == EAST:
ant['direction'] = SOUTH
elif ant['direction'] == SOUTH:
ant['direction'] = WEST
elif ant['direction'] == WEST:
ant['direction'] = NORTH
else:
nextBoard[(ant['x'], ant['y'])] = True
# Turn counter clockwise:
if ant['direction'] == NORTH:
ant['direction'] = WEST
elif ant['direction'] == WEST:
ant['direction'] = SOUTH
elif ant['direction'] == SOUTH:
ant['direction'] = EAST
elif ant['direction'] == EAST:
ant['direction'] = NORTH
changedTiles.append((ant['x'], ant['y']))
# Move the ant forward in whatever direction it's facing:
if ant['direction'] == NORTH:
ant['y'] -= 1
if ant['direction'] == SOUTH:
ant['y'] += 1
if ant['direction'] == WEST:
ant['x'] -= 1
if ant['direction'] == EAST:
ant['x'] += 1
# If the ant goes past the edge of the screen,
# it should wrap around to other side.
ant['x'] = ant['x'] % WIDTH
ant['y'] = ant['y'] % HEIGHT
changedTiles.append((ant['x'], ant['y']))
board = nextBoard
def main():
bext.clear()
# Generate some dots.
dots = []
for i in range(NUMBER_OF_DOTS):
dots.append({
COLOR: random.choice(COLORS),
X: random.randint(1, WIDTH - 2),
Y: random.randint(1, HEIGHT - 2),
DIR: random.choice(DIRECTIONS)
})
while True: # Main program loop.
oldDotPositions = []
for dot in dots:
# Draw our dots:
bext.goto(dot[X], dot[Y])
bext.fg(dot[COLOR])
print(DOT_CHAR, end='')
oldDotPositions.append((dot[X], dot[Y]))
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE_AMOUNT)
for dot in dots:
# Move our dots:
if dot[DIR] == UP_RIGHT:
dot[X] += 1
dot[Y] -= 1
elif dot[DIR] == UP_LEFT:
dot[X] -= 1
dot[Y] -= 1
elif dot[DIR] == DOWN_RIGHT:
dot[X] += 1
dot[Y] += 1
elif dot[DIR] == DOWN_LEFT:
dot[X] -= 1
dot[Y] += 1
# See if our dots bounce off the corners:
if dot[X] == 0 and dot[Y] == 0:
dot[DIR] = DOWN_RIGHT
elif dot[X] == 0 and dot[Y] == HEIGHT - 1:
dot[DIR] = UP_RIGHT
elif dot[X] == WIDTH - 1 and dot[Y] == 0:
dot[DIR] = DOWN_LEFT
elif dot[X] == WIDTH - 1 and dot[Y] == HEIGHT - 1:
dot[DIR] = UP_LEFT
# See if our dots bounce off the walls:
elif dot[X] == 0 and dot[DIR] == UP_LEFT:
dot[DIR] = UP_RIGHT
elif dot[X] == 0 and dot[DIR] == DOWN_LEFT:
dot[DIR] = DOWN_RIGHT
elif dot[X] == WIDTH - 1 and dot[DIR] == UP_RIGHT:
dot[DIR] = UP_LEFT
elif dot[X] == WIDTH - 1 and dot[DIR] == DOWN_RIGHT:
dot[DIR] = DOWN_LEFT
elif dot[Y] == 0 and dot[DIR] == UP_LEFT:
dot[DIR] = DOWN_LEFT
elif dot[Y] == 0 and dot[DIR] == UP_RIGHT:
dot[DIR] = DOWN_RIGHT
elif dot[Y] == HEIGHT - 1 and dot[DIR] == DOWN_LEFT:
dot[DIR] = UP_LEFT
elif dot[Y] == HEIGHT - 1 and dot[DIR] == DOWN_RIGHT:
dot[DIR] = UP_RIGHT
for position in oldDotPositions:
# Erase all of the dots.
bext.goto(position[0], position[1])
print(' ', end='')
def main():
bext.clear()
# Generate some points.
points = []
for i in range(NUMBER_OF_POINTS):
points.append({
X: random.randint(1, WIDTH - 2),
Y: random.randint(1, HEIGHT - 2),
DIR: random.choice(DIRECTIONS)
})
while True: # Main program loop.
oldpointPositions = []
if random.randint(1, 50) == 1:
bext.fg('random')
for i, point in enumerate(points):
# Draw our lines:
if i == len(points) - 1:
# The last point connects to the first point.
pointA = point
pointB = points[0]
else:
pointA = point
pointB = points[i + 1]
for x, y in line(pointA[X], pointA[Y], pointB[X], pointB[Y]):
bext.goto(x, y)
print(LINE_CHAR, end='')
oldpointPositions.append((x, y))
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(0.1)
for point in points:
# Move our points:
if point[DIR] == UP_RIGHT:
point[X] += 1
point[Y] -= 1
elif point[DIR] == UP_LEFT:
point[X] -= 1
point[Y] -= 1
elif point[DIR] == DOWN_RIGHT:
point[X] += 1
point[Y] += 1
elif point[DIR] == DOWN_LEFT:
point[X] -= 1
point[Y] += 1
# See if our points bounce off the corners:
if point[X] == 0 and point[Y] == 0:
point[DIR] = DOWN_RIGHT
elif point[X] == 0 and point[Y] == HEIGHT - 1:
point[DIR] = UP_RIGHT
elif point[X] == WIDTH - 1 and point[Y] == 0:
point[DIR] = DOWN_LEFT
elif point[X] == WIDTH - 1 and point[Y] == HEIGHT - 1:
point[DIR] = UP_LEFT
# See if our points bounce off the walls:
elif point[X] == 0 and point[DIR] == UP_LEFT:
point[DIR] = UP_RIGHT
elif point[X] == 0 and point[DIR] == DOWN_LEFT:
point[DIR] = DOWN_RIGHT
elif point[X] == WIDTH - 1 and point[DIR] == UP_RIGHT:
point[DIR] = UP_LEFT
elif point[X] == WIDTH - 1 and point[DIR] == DOWN_RIGHT:
point[DIR] = DOWN_LEFT
elif point[Y] == 0 and point[DIR] == UP_LEFT:
point[DIR] = DOWN_LEFT
elif point[Y] == 0 and point[DIR] == UP_RIGHT:
point[DIR] = DOWN_RIGHT
elif point[Y] == HEIGHT - 1 and point[DIR] == DOWN_LEFT:
point[DIR] = UP_LEFT
elif point[Y] == HEIGHT - 1 and point[DIR] == DOWN_RIGHT:
point[DIR] = UP_RIGHT
for position in oldpointPositions:
# Erase all of the points.
bext.goto(position[0], position[1])
print(' ', end='')
def main():
bext.clear()
# Generate some points.
points = []
for i in range(NUMBER_OF_POINTS):
points.append({
X: random.randint(1, WIDTH - 2),
Y: random.randint(1, HEIGHT - 2),
DIR: random.choice(DIRECTIONS)
})
while True: # Main program loop.
# There's a 1 in 50 chance of changing the color.
if random.randint(1, 50) == 1:
bext.fg('random')
# Erase the lines drawn previously at these points.
drawLinesBetweenPoints(points, ' ')
for point in points:
# Move the points in the direction of point[DIR]:
if point[DIR] == UP_RIGHT:
point[X] += 1
point[Y] -= 1
elif point[DIR] == UP_LEFT:
point[X] -= 1
point[Y] -= 1
elif point[DIR] == DOWN_RIGHT:
point[X] += 1
point[Y] += 1
elif point[DIR] == DOWN_LEFT:
point[X] -= 1
point[Y] += 1
# See if the point bounces off the corners:
if point[X] == 0 and point[Y] == 0:
point[DIR] = DOWN_RIGHT
elif point[X] == 0 and point[Y] == HEIGHT - 1:
point[DIR] = UP_RIGHT
elif point[X] == WIDTH - 1 and point[Y] == 0:
point[DIR] = DOWN_LEFT
elif point[X] == WIDTH - 1 and point[Y] == HEIGHT - 1:
point[DIR] = UP_LEFT
# See if the dot bounces off the left edge:
elif point[X] == 0 and point[DIR] == UP_LEFT:
point[DIR] = UP_RIGHT
elif point[X] == 0 and point[DIR] == DOWN_LEFT:
point[DIR] = DOWN_RIGHT
# See if the dot bounces off the right edge:
elif point[X] == WIDTH - 1 and point[DIR] == UP_RIGHT:
point[DIR] = UP_LEFT
elif point[X] == WIDTH - 1 and point[DIR] == DOWN_RIGHT:
point[DIR] = DOWN_LEFT
# See if the dot bounces off the top edge:
elif point[Y] == 0 and point[DIR] == UP_LEFT:
point[DIR] = DOWN_LEFT
elif point[Y] == 0 and point[DIR] == UP_RIGHT:
point[DIR] = DOWN_RIGHT
# See if the dot bounces off the bottom edge:
elif point[Y] == HEIGHT - 1 and point[DIR] == DOWN_LEFT:
point[DIR] = UP_LEFT
elif point[Y] == HEIGHT - 1 and point[DIR] == DOWN_RIGHT:
point[DIR] = UP_RIGHT
# Draw the points in their new position:
drawLinesBetweenPoints(points, LINE_CHAR)
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE_AMOUNT)
def main():
# Draw the initially uncut grass field:
bext.clear()
if sys.platform == 'win32':
bext.hide() # Currently, hiding the cursor only works on Windows.
bext.fg('green')
for i in range(HEIGHT):
print(';' * WIDTH)
print('Press Ctrl-C to quit.')
# mowerx and mowery refer to the left edge of the lower, despite direction.
mowerx = -MOWER_LEN
mowery = 0
mowerDirection = 'right'
growMode = False
while True: # Main program loop.
# Draw the mower:
drawMower(mowerx, mowery, mowerDirection)
# Draw the cut grass:
if (mowerDirection == 'right') and (mowerx - 1 >= 0):
bext.goto(mowerx - 1, mowery)
bext.fg('green')
print(',', end='')
elif (mowerDirection == 'left') and (mowerx < WIDTH - MOWER_LEN):
bext.goto(mowerx + MOWER_LEN, mowery)
bext.fg('green')
print(',', end='')
# Move the mower:
if mowerDirection == 'right':
mowerx += 1 # Move the mower right.
if mowerx > WIDTH:
# After going past the right edge,
# change position and direction.
mowerDirection = 'left'
mowery += 1
if mowery == HEIGHT:
# Done mowing, let the grass grow back:
growMode = True
elif mowerDirection == 'left':
mowerx -= 1 # Move the mower left.
if mowerx < -MOWER_LEN:
# After going past the left edge,
# change position and direction.
mowerDirection = 'right'
mowery += 1
if mowery == HEIGHT:
# Done mowing, let the grass grow back.
growMode = True
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(MOWING_PAUSE) # Pause after mowing.
if growMode:
# Let the grass grow back one at a time:
mowerx = -MOWER_LEN # Reset mower position.
mowery = 0 # Reset mower position.
bext.fg('green')
# Create a set of all the places the grass needs to grow:
grassToGrow = set()
for x in range(WIDTH):
for y in range(HEIGHT):
grassToGrow.add((x, y))
# Grow the grass:
while len(grassToGrow) > 0:
x, y = random.sample(grassToGrow, 1)[0]
grassToGrow.remove((x, y))
bext.goto(x, y)
print(';')
try:
time.sleep(GROWING_PAUSE) # Pause after growing.
except KeyboardInterrupt:
sys.exit() # When Ctrl-C is pressed, end the program.
growMode = False # Done growing grass.
def main():
bext.clear()
# Draw the circle of the clock:
for y, row in enumerate(CLOCKFACE.splitlines()):
for x, char in enumerate(row):
if char != ' ':
bext.goto(x, y)
print(char)
while True: # Main program loop.
# Get the current time from the computer's clock:
currentTime = time.localtime()
h = currentTime.tm_hour % 12 # Use 12-hour clock, not 24.
m = currentTime.tm_min
s = currentTime.tm_sec
# Draw the second hand:
secHandDirection = COMPLETE_ARC * (s / 60) + OFFSET_90_DEGREES
secHandXPos = math.cos(secHandDirection)
secHandYPos = math.sin(secHandDirection)
secHandX = int(secHandXPos * SECOND_HAND_LENGTH + CENTERX)
secHandY = int(secHandYPos * SECOND_HAND_LENGTH + CENTERY)
secHandPoints = line(CENTERX, CENTERY, secHandX, secHandY)
for x, y in secHandPoints:
bext.goto(x, y)
print(SECOND_HAND_CHAR, end='')
# Draw the minute hand:
minHandDirection = COMPLETE_ARC * (m / 60) + OFFSET_90_DEGREES
minHandXPos = math.cos(minHandDirection)
minHandYPos = math.sin(minHandDirection)
minHandX = int(minHandXPos * MINUTE_HAND_LENGTH + CENTERX)
minHandY = int(minHandYPos * MINUTE_HAND_LENGTH + CENTERY)
minHandPoints = line(CENTERX, CENTERY, minHandX, minHandY)
for x, y in minHandPoints:
bext.goto(x, y)
print(MINUTE_HAND_CHAR, end='')
# Draw the hour hand:
hourHandDirection = COMPLETE_ARC * (h / 12) + OFFSET_90_DEGREES
hourHandXPos = math.cos(hourHandDirection)
hourHandYPos = math.sin(hourHandDirection)
hourHandX = int(hourHandXPos * HOUR_HAND_LENGTH + CENTERX)
hourHandY = int(hourHandYPos * HOUR_HAND_LENGTH + CENTERY)
hourHandPoints = line(CENTERX, CENTERY, hourHandX, hourHandY)
for x, y in hourHandPoints:
bext.goto(x, y)
print(HOUR_HAND_CHAR, end='')
sys.stdout.flush() # (Required for bext-using programs.)
# Keep looping until the second changes:
while True:
time.sleep(0.01)
if time.localtime().tm_sec != currentTime.tm_sec:
break
# Erase the clock hands:
for x, y in secHandPoints:
bext.goto(x, y)
print(' ', end='')
for x, y in minHandPoints:
bext.goto(x, y)
print(' ', end='')
for x, y in hourHandPoints:
bext.goto(x, y)
print(' ', end='')
def main():
baseX = random.randint(0, WIDTH - 1)
baseY = random.randint(0, HEIGHT - 1)
vbotX = baseX
vbotY = baseY
vbotBattery = MAX_BATTERY
dirtPiles = {} # Keys are (x, y) tuples, value is dirt level.
for x in range(WIDTH):
for y in range(HEIGHT):
dirtPiles[(x, y)] = 0 # Set it to no dirt to begin with.
# Add some dirt to start with:
bext.clear() # Clear the terminal window.
for i in range(NUM_STARTING_DIRT):
newDirtX = random.randint(0, WIDTH - 1)
newDirtY = random.randint(0, HEIGHT - 1)
dirtPiles[(newDirtX, newDirtY)] = 1
bext.goto(newDirtX, newDirtY)
print(DIRT_CHARS[dirtPiles[(newDirtX, newDirtY)]], end='')
moveTo = [] # A list of (x, y) tuples to move to in turn.
while True: # Main simulation loop.
vbotStatus = CLEANING
# Add dirt to the room:
if random.randint(0, 100) <= DIRT_ADD_FREQUENCY:
for i in range(DIRT_ADD_AMOUNT):
newDirtX = random.randint(0, WIDTH - 1)
newDirtY = random.randint(0, HEIGHT - 1)
# Dirt piles max out at 3, so only add dirt if the dirt
# level is less than 3:
if dirtPiles[(newDirtX, newDirtY)] < 3:
# Add dirt to this (x, y) space:
dirtPiles[(newDirtX, newDirtY)] += 1
bext.goto(newDirtX, newDirtY)
dirtPileLevel = dirtPiles[(newDirtX, newDirtY)]
print(DIRT_CHARS[dirtPileLevel], end='')
# The vbot has reached its destination, so find the
# closest dirt pile:
if len(moveTo) == 0:
closestDirtDistance = None
closestDirts = []
for dirtX in range(WIDTH):
for dirtY in range(HEIGHT):
if dirtPiles[(dirtX, dirtY)] == 0:
continue # Skip clean spots.
distance = getDistance(vbotX, vbotY, dirtX, dirtY)
if (closestDirtDistance == None
or distance < closestDirtDistance):
closestDirtDistance = distance
closestDirts = [(dirtX, dirtY)]
elif distance == closestDirtDistance:
closestDirts.append((dirtX, dirtY))
if closestDirtDistance != None:
closestDirtX, closestDirtY = random.choice(closestDirts)
moveTo = line(vbotX, vbotY, closestDirtX, closestDirtY)
# Remove the first (x, y) returned from line() because
# that is the vbot's current position.
moveTo = moveTo[1:]
# Determine if the vbot should head back to base to recharge:
distanceToDirt = len(moveTo)
if len(moveTo) > 0:
lineToBase = line(moveTo[-1][0], moveTo[-1][0], baseX, baseY)
# Subtract 1 because the first (x, y) returned from line()
# is the vbot's current position.
distanceFromDirtToBase = len(lineToBase) - 1
else:
# There is no dirt to go to, so use 0:
distanceFromDirtToBase = 0
if distanceToDirt + distanceFromDirtToBase > vbotBattery:
# Make the vbot go towards the base station:
moveTo = line(vbotX, vbotY, baseX, baseY)
# Remove the first (x, y) returned from line() because
# that is the vbot's current position.
moveTo = moveTo[1:]
vbotStatus = RETURNING
# If the vbot is charging at the base station, make it stay
# there until it is fully charged:
if ((vbotX, vbotY) == (baseX, baseY) and vbotBattery < MAX_BATTERY):
# Make the vbot stay where it is at the base station:
moveTo = []
if len(moveTo) > 0:
# Move the vbot towards its destination:
vbotBattery -= 1 # Reduce the vbot's battery.
# Erase the vbot from the screen and draw the dirt that
# is at that space:
bext.goto(vbotX, vbotY)
print(DIRT_CHARS[dirtPiles[(vbotX, vbotY)]], end='')
# Set new vbot position:
vbotX, vbotY = moveTo[0]
del moveTo[0]
# Make the vbot suck up the dirt at its current location:
dirtPiles[(vbotX, vbotY)] = 0
# Recharge the vbot if it's at the base station:
if vbotX == baseX and vbotY == baseY:
vbotStatus = CHARGING
vbotBattery += RECHARGE_RATE
if vbotBattery > MAX_BATTERY:
vbotBattery = MAX_BATTERY
# Display the vbot:
bext.goto(vbotX, vbotY)
print(VBOT, end='')
# Display the base station:
bext.goto(baseX, baseY)
print(BASE, end='')
# Display the batter indicator on the bottom row:
bext.goto(0, HEIGHT)
print('Press Ctrl-C to quit. ', end='')
print(vbotStatus, end='')
batteryPercentage = round(vbotBattery / MAX_BATTERY * 100, 1)
print(' Battery:', str(batteryPercentage) + '% ', end='')
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE)
def main():
bext.clear()
#generate some logos
logos = []
for i in range(NUMBER_OF_LOGOS):
logos.append({COLOR: random.choice(COLORS),
X: random.randint(1, (WIDTH - 4)),
Y: random.randint(1, HEIGHT - 1),
DIR: random.choice(DIRECTIONS)})
if logos[-1][X] % 2 == 1:
#make sure X is even so it can hit the corner
logos[-1][X] -= 1
cornerBounces = 0
while True:
for logo in logos:
#erase the logo's current position
bext.goto(logo[X], logo[Y])
print(' ', end='')
original_direction = logo[DIR]
#see if the logo bounces off the corners
if logo[X] == 0 and logo[Y] == 0:
logo[DIR] = DOWN_RIGHT
cornerBounces += 1
elif logo[X] == 0 and logo[Y] == HEIGHT - 1:
logo[DIR] = UP_RIGHT
cornerBounces += 1
elif logo[X] == WIDTH - 3 and logo[Y] == 0:
logo[DIR] == DOWN_LEFT
cornerBounces += 1
elif logo[X] == WIDTH - 3 and logo[Y] == HEIGHT - 1:
logo[DIR] == UP_LEFT
cornerBounces += 1
# See if the logo bounces off the left edge:
elif logo[X] == 0 and logo[DIR] == UP_LEFT:
logo[DIR] = UP_RIGHT
elif logo[X] == 0 and logo[DIR] == DOWN_LEFT:
logo[DIR] = DOWN_RIGHT
# See if the logo bounces off the right edge:
# (WIDTH - 3 because 'DVD' has 3 letters.)
elif logo[X] == WIDTH - 3 and logo[DIR] == UP_RIGHT:
logo[DIR] = UP_LEFT
elif logo[X] == WIDTH - 3 and logo[DIR] == DOWN_RIGHT:
logo[DIR] = DOWN_LEFT
# See if the logo bounces off the top edge:
elif logo[Y] == 0 and logo[DIR] == UP_LEFT:
logo[DIR] = DOWN_LEFT
elif logo[Y] == 0 and logo[DIR] == UP_RIGHT:
logo[DIR] = DOWN_RIGHT
# See if the logo bounces off the bottom edge:
elif logo[Y] == HEIGHT - 1 and logo[DIR] == DOWN_LEFT:
logo[DIR] = UP_LEFT
elif logo[Y] == HEIGHT - 1 and logo[DIR] == DOWN_RIGHT:
logo[DIR] = UP_RIGHT
if logo[DIR] != original_direction:
# Change color when the logo bounces:
logo[COLOR] = random.choice(COLORS)
#move the logo. (X moves by 2 because the terminal
#vharacers are twice as tall as they are wide)
if logo[DIR] == UP_RIGHT:
logo[X] += 2
logo[Y] -= 1
elif logo[DIR] == UP_LEFT:
logo[X] -= 2
logo[Y] -= 1
elif logo[DIR] == DOWN_RIGHT:
logo[X] += 2
logo[Y] += 1
elif logo[DIR] == DOWN_LEFT:
logo[X] -= 2
logo[Y] += 1
#display the number of corner bounces
bext.goto(5,0)
bext.fg('white')
print('Corner bounces:', cornerBounces, end='')
for logo in logos:
#draw the logos at their new location
bext.goto(logo[X], logo[Y])
bext.fg(logo[COLOR])
print('DVD', end='')
bext.goto(0,0)
sys.stdout.flush()
time.sleep(PAUSE_AMOUNT)
def main():
bext.fg('yellow')
bext.clear()
# Draw the quit message:
bext.goto(0, 0)
print('Ctrl-C to quit.', end='')
# Draw the walls:
for wall in ALL_WALLS:
bext.goto(wall[X], wall[Y])
print(WALL, end='')
while True: # Main program loop.
allSand = list(INITIAL_SAND)
random.shuffle(allSand) # Mix up the order that the grains of sand are simulated.
# Draw the initial sand:
for sand in allSand:
bext.goto(sand[X], sand[Y])
print(SAND, end='')
while True: # Keep looping until sand has run out.
# Simulate all sand in the sandspace:
#allSand.sort(key=lambda v: v[Y], reverse=True) # Sort from bottom sand up.
random.shuffle(allSand) # Random order of grain simulation.
sandMovedOnThisStep = False
for i, sand in enumerate(allSand):
if sand[Y] == HEIGHT - 1:
continue # Sand is on the very bottom, so it won't move at all.
# If nothing is under this sand, move it down:
noSandBelow = (sand[X], sand[Y] + 1) not in allSand
noWallBelow = (sand[X], sand[Y] + 1) not in ALL_WALLS
canFallDown = noSandBelow and noWallBelow
if canFallDown:
allSand[i] = (sand[X], sand[Y] + 1)
sandMovedOnThisStep = True
bext.goto(sand[X], sand[Y])
print(' ', end='')
bext.goto(sand[X], sand[Y] + 1)
print(SAND, end='')
else:
# Check if the sand can fall to the left:
noSandBelowLeft = (sand[X] - 1, sand[Y] + 1) not in allSand
noWallBelowLeft = (sand[X] - 1, sand[Y] + 1) not in ALL_WALLS
noWallToTheLeft = (sand[X] - 1, sand[Y]) not in ALL_WALLS
notOnLeftEdge = sand[X] > 0
canFallLeft = noSandBelowLeft and noWallBelowLeft and noWallToTheLeft and notOnLeftEdge
# Check if the sand can fall to the right:
noSandBelowRight = (sand[X] + 1, sand[Y] + 1) not in allSand
noWallBelowRight = (sand[X] + 1, sand[Y] + 1) not in ALL_WALLS
noWallToTheRight = (sand[X] + 1, sand[Y]) not in ALL_WALLS
notOnRightEdge = sand[X] < WIDTH - 1
canFallRight = noSandBelowRight and noWallBelowRight and noWallToTheRight and notOnRightEdge
fallingDirection = None
if canFallLeft and not canFallRight:
fallingDirection = -1
elif not canFallLeft and canFallRight:
fallingDirection = 1
elif canFallLeft and canFallRight:
fallingDirection = random.choice((-1, 1))
# Check if the sand can "wide" fall two spaces to the left or right:
if random.random() <= WIDE_FALL_CHANCE:
noSandBelowTwoLeft = (sand[X] - 2, sand[Y] + 1) not in allSand
noWallBelowTwoLeft = (sand[X] - 2, sand[Y] + 1) not in ALL_WALLS
notOnSecondToLeftEdge = sand[X] > 1
canFallTwoLeft = canFallLeft and noSandBelowTwoLeft and noWallBelowTwoLeft and notOnSecondToLeftEdge
noSandBelowTwoRight = (sand[X] + 2, sand[Y] + 1) not in allSand
noWallBelowTwoRight = (sand[X] + 2, sand[Y] + 1) not in ALL_WALLS
notOnSecondToRightEdge = sand[X] < WIDTH - 2
canFallTwoRight = canFallRight and noSandBelowTwoRight and noWallBelowTwoRight and notOnSecondToRightEdge
if canFallTwoLeft and canFallTwoRight:
fallingDirection = random.choice((-2, 2))
elif canFallTwoLeft and not canFallTwoRight:
fallingDirection = -2
elif not canFallTwoLeft and canFallTwoRight:
fallingDirection = 2
if fallingDirection == None:
continue # This sand can't fall, so move on to the next grain of sand.
# Move the grain of sand:
allSand[i] = (sand[X] + fallingDirection, sand[Y] + 1)
sandMovedOnThisStep = True
bext.goto(sand[X], sand[Y]) # Move cursor to old sand location.
print(' ', end='') # Erase old sand.
bext.goto(sand[X] + fallingDirection, sand[Y] + 1) # Move cursor to new sand location.
print(SAND, end='') # Draw new sand.
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE_LENGTH) # Pause after this
# If no sand has moved on this simulation step, reset the hourglass:
if not sandMovedOnThisStep:
time.sleep(2)
# Erase the sand:
for sand in allSand:
bext.goto(sand[X], sand[Y])
print(' ', end='')
break # Break out of main simultion loop to reset the hour glass.
def main():
bext.clear()
# Generate some logos.
logos = []
for i in range(NUMBER_OF_LOGOS):
logos.append({
COLOR: random.choice(COLORS),
X: random.randint(1, WIDTH - 4),
Y: random.randint(1, HEIGHT - 4),
DIR: random.choice(DIRECTIONS)
})
if logos[-1][X] % 2 == 1:
# Make sure X is even so it can hit the corner.
logos[-1][X] -= 1
cornerBounces = 0 # Count how many times a logo hits a corner.
while True: # Main program loop.
for logo in logos: # Handle each logo in the logos list.
# Erase the logo's current location:
bext.goto(logo[X], logo[Y])
print(' ', end='') # (!) Try commenting this line out.
originalDirection = logo[DIR]
# See if the logo bounces off the corners:
if logo[X] == 0 and logo[Y] == 0:
logo[DIR] = DOWN_RIGHT
cornerBounces += 1
elif logo[X] == 0 and logo[Y] == HEIGHT - 1:
logo[DIR] = UP_RIGHT
cornerBounces += 1
elif logo[X] == WIDTH - 3 and logo[Y] == 0:
logo[DIR] = DOWN_LEFT
cornerBounces += 1
elif logo[X] == WIDTH - 3 and logo[Y] == HEIGHT - 1:
logo[DIR] = UP_LEFT
cornerBounces += 1
# See if the logo bounces off the left edge:
elif logo[X] == 0 and logo[DIR] == UP_LEFT:
logo[DIR] = UP_RIGHT
elif logo[X] == 0 and logo[DIR] == DOWN_LEFT:
logo[DIR] = DOWN_RIGHT
# See if the logo bounces off the right edge:
# (WIDTH - 3 because 'DVD' has 3 letters.)
elif logo[X] == WIDTH - 3 and logo[DIR] == UP_RIGHT:
logo[DIR] = UP_LEFT
elif logo[X] == WIDTH - 3 and logo[DIR] == DOWN_RIGHT:
logo[DIR] = DOWN_LEFT
# See if the logo bounces off the top edge:
elif logo[Y] == 0 and logo[DIR] == UP_LEFT:
logo[DIR] = DOWN_LEFT
elif logo[Y] == 0 and logo[DIR] == UP_RIGHT:
logo[DIR] = DOWN_RIGHT
# See if the logo bounces off the bottom edge:
elif logo[Y] == HEIGHT - 1 and logo[DIR] == DOWN_LEFT:
logo[DIR] = UP_LEFT
elif logo[Y] == HEIGHT - 1 and logo[DIR] == DOWN_RIGHT:
logo[DIR] = UP_RIGHT
if logo[DIR] != originalDirection:
# Change color when the logo bounces:
logo[COLOR] = random.choice(COLORS)
# Move the logo. (X moves by 2 because the terminal
# characters are twice as tall as they are wide.)
if logo[DIR] == UP_RIGHT:
logo[X] += 2
logo[Y] -= 1
elif logo[DIR] == UP_LEFT:
logo[X] -= 2
logo[Y] -= 1
elif logo[DIR] == DOWN_RIGHT:
logo[X] += 2
logo[Y] += 1
elif logo[DIR] == DOWN_LEFT:
logo[X] -= 2
logo[Y] += 1
# Display number of corner bounces:
bext.goto(5, 0)
bext.fg('white')
print('Corner bounces:', cornerBounces, end='')
for logo in logos:
# Draw the logos at their new location:
bext.goto(logo[X], logo[Y])
bext.fg(logo[COLOR])
print('DVD', end='')
bext.goto(0, 0)
sys.stdout.flush() # (Required for bext-using programs.)
time.sleep(PAUSE_AMOUNT)
def main():
bext.clear()
#Draw the circle on the clock
for y, row in enumerate(CLOCKFACE.splitlines()):
for x, char in enumerate(row):
if char != ' ':
bext.goto(x, y)
print(char)
while True:
#get current time from computer clock
current_time = time.localtime()
h = current_time.tm_hour % 12 #use 12 hour instead of 24 hour clock
m = current_time.tm_min
s = current_time.tm_sec
#draw the second hand
sec_hand_dir = COMPLETE_ARC * (s / 60) + OFFSET_90_DEGREES
sec_hand_xpos = math.cos(sec_hand_dir)
sec_hand_ypos = math.sin(sec_hand_dir)
sec_hand_X = int(sec_hand_xpos * SECOND_HAND_LENGTH + CENTERX)
sec_hand_Y = int(sec_hand_ypos * SECOND_HAND_LENGTH + CENTERY)
sec_hand_points = line(CENTERX, CENTERY, sec_hand_X, sec_hand_Y)
for x.y in sec_hand_points:
bext.goto(x, y)
print(SECOND_HAND_CHAR, end='')
min_hand_dir = COMPLETE_ARC * (s / 60) + OFFSET_90_DEGREES
min_hand_xpos = math.cos(min_hand_dir)
min_hand_ypos = math.sin(min_hand_dir)
min_hand_X = int(min_hand_xpos * MINUTE_HAND_LENGTH + CENTERX)
min_hand_Y = int(min_hand_ypos * MINUTE_HAND_LENGTH + CENTERY)
min_hand_points = line(CENTERX, CENTERY, min_hand_X, min_hand_Y)
for x.y in min_hand_points:
bext.goto(x, y)
print(MINUTE_HAND_CHAR, end='')
hour_hand_dir = COMPLETE_ARC * (s / 60) + OFFSET_90_DEGREES
hour_hand_xpos = math.cos(hour_hand_dir)
hour_hand_ypos = math.sin(hour_hand_dir)
hour_hand_X = int(hour_hand_xpos * HOUR_HAND_LENGTH + CENTERX)
hour_hand_Y = int(hour_hand_ypos * HOUR_HAND_LENGTH + CENTERY)
hour_hand_points = line(CENTERX, CENTERY, hour_hand_X, hour_hand_Y)
for x.y in hour_hand_points:
bext.goto(x, y)
print(HOUR_HAND_CHAR, end='')
sys.stdout.flush() #required for bext using
#keep logging until the second changes
while True:
time.sleep(0.1)
if time.localtime().tm_sec != current_time.tm_sec:
break
#erase the clock hands
for x, y in sec_hand_points:
bext.goto(x, y)
print(' ', end='')
for x, y in min_hand_points:
bext.goto(x, y)
print(' ', end='')
for x, y in hour_hand_points:
bext.goto(x, y)
print(' ', end='')
import sys, random, time
try:
import bext
except ImportError:
print("""This program requires the bext module, which you can install by
opening a Terminal window (on macOS & Linux) and running:
python3 -m pip install --user bext
or a Command Prompt window (on Windows) and running:
python -m pip install --user bext""")
sys.exit()
bext.clear()
WIDTH, HEIGHT = bext.size()
WIDTH -= 1 # Reduce width by 1 because of a weird Windows behavior.
NUMBER_OF_POINTS = 4
COLORS = ('red', 'green', 'yellow', 'blue', 'purple', 'cyan', 'white')
DIRECTIONS = ('upright', 'upleft', 'downright', 'downleft')
LINE_CHAR = '#'
def main():
# Generate some points.
points = []
for i in range(NUMBER_OF_POINTS):
points.append({
'x': random.randint(1, WIDTH - 2),
'y': random.randint(1, HEIGHT - 2),
def main():
# Setup the screen:
bext.fg('yellow') # Set foreground color.
bext.bg('blue') # Set background color.
bext.clear()
# Create a new board data structure:
board = {'width': WIDTH, 'height': HEIGHT}
# Create ant data structures:
ants = []
for i in range(NUMBER_OF_ANTS):
ant = {
'x': random.randint(0, WIDTH - 1),
'y': random.randint(0, HEIGHT - 1),
'direction': random.choice(['N', 'S', 'E', 'W'])
}
ants.append(ant)
# Keep running the simulation as long as we have ants:
while len(ants) > 0: # Main program loop.
# Draw the board data structure:
bext.goto(0, 0)
for y in range(board['height']):
for x in range(board['width']):
if board.get((x, y), False):
print(chr(9608), end='') # Print a solid block.
else:
print(' ', end='') # Print an empty space.
print()
print('Press Ctrl-C to quit.')
# Run a single simulation step for each ant:
nextBoard = copy.copy(board)
for ant in ants:
if board.get((ant['x'], ant['y']), False) == True:
nextBoard[(ant['x'], ant['y'])] = False
# Turn clockwise:
if ant['direction'] == 'N':
ant['direction'] = 'E'
elif ant['direction'] == 'E':
ant['direction'] = 'S'
elif ant['direction'] == 'S':
ant['direction'] = 'W'
elif ant['direction'] == 'W':
ant['direction'] = 'N'
else:
nextBoard[(ant['x'], ant['y'])] = True
# Turn counter clockwise:
if ant['direction'] == 'N':
ant['direction'] = 'W'
elif ant['direction'] == 'W':
ant['direction'] = 'S'
elif ant['direction'] == 'S':
ant['direction'] = 'E'
elif ant['direction'] == 'E':
ant['direction'] = 'N'
# Move the ant forward:
if ant['direction'] == 'N':
ant['y'] -= 1
if ant['direction'] == 'S':
ant['y'] += 1
if ant['direction'] == 'W':
ant['x'] -= 1
if ant['direction'] == 'E':
ant['x'] += 1
# If the ant goes past the edge of the screen,
# it should wrap around to other side.
ant['x'] = ant['x'] % WIDTH - 1
ant['y'] = ant['y'] % HEIGHT - 1
board = nextBoard
