def __init__(self):
self.started = False
self.bg_colour = (240, 160, 212)
self.area_info = (0, 0, 450, 450)
self.cell_amt = 18
self.back_colour = Color(231, 242, 198)
self.cell_colour = Color(200, 200, 227)
self.cell_size = (self.area_info[2] // self.cell_amt,
self.area_info[3] // self.cell_amt)
self.play_rect = Rect(self.area_info)
self.play_surf = Surface(self.area_info[2:])
self.play_surf.fill(self.back_colour)
self.circ_radius = 25
self.fruit = Collectible(self.cell_size, self.cell_amt)
self.score = 0
self.snake = Snake(self.cell_size, self.cell_amt)
self.snake_is_dead = False
self.draw_checkerboard()
self.font = SysFont("Arial", 30)
self.text = self.font.render("Score: 0", False, self.back_colour)
def test_up():
mapping = {"right": "up", "left": "up", "up": "up", "down": "down"}
for key in DIRECTIONS:
snake = Snake()
snake.direction = key
snake.up()
assert snake.direction == mapping[key]
def test_simulate():
snake = Snake()
snake.simulate()
assert type(snake.head_location[0]) is int
assert type(snake.head_location[1]) is int
for i, val1 in enumerate(snake.snake_matrix):
for j, val2 in enumerate(snake.snake_matrix[i]):
assert type(snake.snake_matrix[i][j]) is int
def __init__(self, settings):
self.boardWidth = getSetting(settings, "boardWidth", 10)
self.boardHeight = getSetting(settings, "boardHeight", 10)
self.cellSize = getSetting(settings, "cellSize", 10)
self.snake = Snake(settings, self.boardWidth / 2, self.boardHeight / 2)
self.isDead = False
self.item = Item(settings)
self.reinitItem()
def __init__(self, canvas: tk.Canvas):
self.canvas = canvas
self.grid = list()
self.size = [24, 24]
self.snake = Snake(self.size)
self.score = 0
w = self.size[0] * Box.size + 1
h = self.size[1] * Box.size + 1
self.canvas.configure(width=w, height=h)
def __init__(self, x, y):
size = constants.BOARD_SIZE * constants.PIXEL_SIZE
border_size = constants.BORDER_SIZE * 2 + size
self.border_box = pg.rect.Rect((x, y), (border_size, border_size))
self.box = pg.rect.Rect((x + constants.BORDER_SIZE, y + constants.BORDER_SIZE), (size, size))
self.score = 3
self.score_font = pg.font.Font(Assets.BOXY_FONT, 24)
self.snake = Snake(int(constants.BOARD_SIZE / 2), constants.BOARD_SIZE / 2)
self.fruit = Fruit()
self.clock = pg.time.Clock()
self.count = 0
def test(args, env):
# load the snake
s = Snake(filename=args.load_file)
# play the game
obs, score, done = env.reset()
while not done:
time.sleep(1 / args.fps)
env.render()
action = s.action(obs)
obs, score, done = env.step(action)
env.render()
class Board():
def __init__(self, settings):
self.boardWidth = getSetting(settings, "boardWidth", 10)
self.boardHeight = getSetting(settings, "boardHeight", 10)
self.cellSize = getSetting(settings, "cellSize", 10)
self.snake = Snake(settings, self.boardWidth / 2, self.boardHeight / 2)
self.isDead = False
self.item = Item(settings)
self.reinitItem()
def draw(self, screen):
self.move()
screen.fill(style.BoardFillColor)
for row in range(0, self.boardWidth):
for column in range(0, self.boardHeight):
x = row * self.cellSize
y = column * self.cellSize
color = style.BoardFloorColor
if self.isDead:
color = style.BoardDeadColor
pygame.draw.rect(screen, color,
(x, y, self.cellSize, self.cellSize), 1)
self.item.draw(screen)
self.snake.draw(screen)
def move(self):
if self.snake.direction == Direction.Up:
self.tryMove(self.snake.x, self.snake.y - 1)
elif self.snake.direction == Direction.Right:
self.tryMove(self.snake.x + 1, self.snake.y)
elif self.snake.direction == Direction.Down:
self.tryMove(self.snake.x, self.snake.y + 1)
elif self.snake.direction == Direction.Left:
self.tryMove(self.snake.x - 1, self.snake.y)
def tryMove(self, x, y):
self.isDead = ((x < 0) or (x >= self.boardWidth) or (y < 0)
or (y >= self.boardHeight)
or self.snake.isContains(x, y))
if self.isDead:
return
isItemEaten = (x == self.item.x) and (y == self.item.y)
if isItemEaten:
self.item.eatenUpCount = self.item.eatenUpCount + 1
self.reinitItem()
self.snake.moveHead(x, y, isItemEaten)
def reinitItem(self):
self.item.x = random.randint(0, self.boardWidth - 1)
self.item.y = random.randint(0, self.boardHeight - 1)
def train(args, env):
nn_shape = [args.fov, args.hidden_layers, args.layer_size,
2] # 2 is the action space
# the function that will be optimized
F = lambda gen: Snake(nn_shape, genotype=gen).get_score(
env, args.eval_games)
# randomly initialized genotype theta
theta = Snake(nn_shape).get_genotype()
# instance of evolution strategies
es = ES(args.lr, args.std, args.population_size, F, theta)
# optimize theta
for step in range(args.es_steps):
score = es.step()
print("Step: ", step + 1, "/", args.es_steps, "Fitness:",
"{:.2f}".format(score * 100))
# save theta
Snake(nn_shape, genotype=es.theta).save_genotype(args.save_file)
def play(self):
global snake, apple
snake = Snake(config)
apple = Apple(config)
clock = pygame.time.Clock()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
# Detect collision with apple
if snake.x == apple.x and snake.y == apple.y:
snake.eat()
apple = Apple(config)
snake.x_change_old, snake.y_change_old = snake.x, snake.y
with torch.no_grad():
data = get_data()
data = data.reshape(1, 20)
data = torch.tensor(data)
result = model(data)
snake.direction = np.argmax(result)
snake.move()
self.display.fill(self.color)
pygame.draw.rect(self.display, Color.black,
((0, 0), (config.game_w, config.game_h)), 10)
apple.draw(self.display)
snake.draw(self.display)
if snake.x < 0 or snake.y < 0 or snake.x > config.game_w or snake.y > config.game_h:
self.play()
score = self.font.render(f'Score: {snake.score}', True,
Color.black)
score_rect = score.get_rect(center=(config.game_w / 2,
config.game_h - 10))
self.display.blit(score, score_rect)
pygame.display.update()
clock.tick(30) # fps
def __call__(self, *args: Any, **kwds: Any) -> Any:
snake = Snake()
thread = threading.Thread(target=snake.gameloop)
thread.start()
controls = Controls()
controls()
def test_board_has_snakes(self):
board = self.get_board()
assert board.snakes == [
Snake({
"body": [(2, 2), (2, 3), (3, 3)],
"health": 10,
"id": "asdf1234"
})
]
def __init__(self, util: Util, cfg: Config, sfx: SfxHolder,
game_size_tiles: Size2D):
self.util = util
self.cfg = cfg
self.sfx = sfx
# Game
self.game_size_tiles = game_size_tiles
self.game_over = False
self.level = STARTING_LEVEL
self.paused = False
# Snakes
initial_speed = self.get_moves_per_ms_by_level()
self.live_snakes = []
for p in cfg.players:
self.live_snakes.append(Snake(util, p, initial_speed))
self.all_snakes = self.live_snakes # backup list of all snakes
# If multiple snakes, make ghosts so that they don't immediately collide
for s in self.live_snakes:
s.set_ghost(GHOST_TIMER_MS)
# Enemies, apple, powerups, bullets
self.enemies = []
self.poisons = []
self.apple = None
self.pow_shield = None
self.pow_ghost = None
self.pow_bomb = None
self.pow_bullets = None
self.fired_bullets = []
# Minus enemies (due to bomb)
self.minus_enemies = 0
self.minus_poisons = 0
# Generate first apple
self.new_objects()
class GameScene(QGraphicsScene):
"""Custom QGraphicsScene"""
def __init__(self, food_count, update_rate, statistic_list):
super().__init__()
self.sceneRect = QRectF(0.0, 0.0, 500.0, 500.0)
self.setSceneRect(self.sceneRect)
self.width = int(self.width())
self.height = int(self.height())
self.snake = None
self.timer = QTimer()
self.timer_snake = QTimer()
self.update_rate = update_rate
self.food_count = food_count
self.food_items = []
self.score = 0
self.statistic_list = statistic_list
self.time = 0
self.game_status = False
self.startUpdate()
# Signals
self.timer.timeout.connect(self.update)
self.timer_snake.timeout.connect(self.killSnake)
def startUpdate(self):
self.timer.start(self.update_rate)
self.timer_snake.start(self.update_rate)
self.game_status = True
def pauseUpdate(self):
self.timer.stop()
self.timer_snake.stop()
def drawGrid(self):
self.addRect(0, 0, 500, 500,
QPen(QColor('white'), 1),
QBrush(QColor('white')))
for row in range(0, self.height + 20, 20):
for column in range(0, self.width + 20, 20):
self.addLine(0, row, self.width, row,
QPen(QColor('black'), 1))
self.addLine(column, 0, column, self.height,
QPen(QColor('black'), 1))
def createSnake(self):
self.snake = Snake(0.0, 0.0)
self.createFood()
self.time = time.time()
return self.snake
def update(self):
self.clear()
self.drawGrid()
self.placeFood()
self.updateScore()
self.catchFood()
self.drawSnake()
def killSnake(self):
if self.snake.x not in range(0, self.width) or \
self.snake.y not in range(0, self.height) or\
self.snake.pos() in self.snake.positions[2:]:
self.time = round(time.time() - self.time, 3)
self.statistic_list.addItem('Game finished: {} s. Score: {}'\
.format(self.time, self.score))
self.pauseUpdate()
self.game_status = False
def createFood(self):
for item in range(self.food_count):
random_x = abs(round(randint(0, self.width) / 20) * 20 - 20)
random_y = abs(round(randint(0, self.height) / 20) * 20 - 20)
food_item = QRectF(random_x, random_y, 20, 20)
while food_item in self.food_items or food_item in self.snake.positions:
random_x = abs(round(randint(0, self.width) / 20) * 20 - 20)
random_y = abs(round(randint(0, self.height) / 20) * 20 - 20)
food_item = QRectF(random_x, random_y, 20, 20)
self.food_items.append(food_item)
def placeFood(self):
for item in self.food_items:
self.addRect(item, QPen(QColor('white'), 1),
QBrush(QColor('red')))
def updateScore(self):
self.addItem(ScoreText('Score: {}'.format(self.score), -30, -40))
def catchFood(self):
for index, item in enumerate(self.food_items):
if self.snake.pos() == (item.x(), item.y()):
self.score += 10
del self.food_items[index]
self.snake.eat()
if not self.food_items:
self.createFood()
def drawSnake(self):
for index, pos in enumerate(self.snake.positions):
self.addRect(pos[0], pos[1], 20, 20,
QPen(QColor('white'), 1),
QBrush(QColor('green')))
if index == 0:
self.addRect(pos[0] + 8, pos[1] + 8, 4, 4,
QPen(QColor('yellow'), 1),
QBrush(QColor('yellow')))
def getStatus(self):
return self.game_status
def init_snake(self):
head = Snake()
head.body_part = self.game_board_canvas.create_rectangle(
120, 100, 130, 110, outline='#006400', fill='#008000', tags='S1')
head.id = 'S1'
body = Snake()
body.body_part = self.game_board_canvas.create_rectangle(
110, 100, 120, 110, outline='#006400', fill='#32CD32', tags='S2')
body.id = 'S2'
tail = Snake()
tail.body_part = self.game_board_canvas.create_rectangle(
100, 100, 110, 110, outline='#006400', fill='#32CD32', tags='S3')
tail.id = 'S3'
self.snake = [head, body, tail]
def play(self):
while self.game:
level = len(self.snake) // 3
snake_speed = (self.speed - level) / 100
if self.speed <= 0.01:
time.sleep(0.01)
else:
self.update_level_label(level)
time.sleep(snake_speed)
for trap in self.traps:
trap.increase_current_life_time()
if trap.can_remove():
trap.remove()
self.traps.remove(trap)
self.traps.append(
Trap(self.game_board_canvas, self.snake, self.prize))
if self.prize is not None:
self.prize.increase_current_life_time()
if self.prize.can_remove():
self.prize.remove()
self.prize = None
self.prize = Prize(self.game_board_canvas, self.snake,
self.traps)
if self.prize is not None:
head = self.snake[0]
tail = self.snake[len(self.snake) - 1]
pc = self.game_board_canvas.coords(self.prize.get())
hc = self.game_board_canvas.coords(head.body_part)
tc = self.game_board_canvas.coords(tail.body_part)
if pc[0] == hc[0] and pc[1] == hc[1] and pc[2] == hc[2] and pc[
3] == hc[3]:
np = Snake()
np.body_part = self.game_board_canvas.create_rectangle(
tc[0] - tail.x_pos,
tc[1] - tail.y_pos,
tc[2] - tail.x_pos,
tc[3] - tail.y_pos,
outline='#006400',
fill='#32CD32',
tags=('ss' + str(len(self.snake) + 1)))
np.id = 'S' + str(len(self.snake) + 1)
np.x_pos = tail.x_pos
np.y_pos = tail.y_pos
np.moves = []
for m in tail.moves:
np.moves.append(m)
self.snake.append(np)
self.score += self.prize.value
self.score_label_text.set('SCORE: ' + str(self.score))
self.snake_length.set('SNAKE LENGTH: ' +
str(len(self.snake)))
self.prize.remove()
self.prize = None
self.prize = Prize(self.game_board_canvas, self.snake,
self.traps)
if len(self.move_positions) > 0:
pos = self.move_positions[0]
for sp in self.snake:
sp.add_move(pos)
del self.move_positions[0]
for snake_part in self.snake:
c = self.game_board_canvas.coords(snake_part.body_part)
if len(snake_part.moves) > 0:
m = snake_part.moves[0]
if c[0] == m[0] and c[1] == m[1] and c[2] == m[2] and c[
3] == m[3]:
snake_part.x_pos = m[4]
snake_part.y_pos = m[5]
del snake_part.moves[0]
self.game_board_canvas.move(snake_part.body_part,
snake_part.x_pos, snake_part.y_pos)
if c[2] >= 400 and snake_part.x_pos == 10:
self.game_board_canvas.coords(snake_part.body_part,
[0, c[1], 10, c[3]])
if c[0] <= 0 and snake_part.x_pos == -10:
self.game_board_canvas.coords(snake_part.body_part,
[390, c[1], 400, c[3]])
if c[3] >= 300 and snake_part.y_pos == 10:
self.game_board_canvas.coords(snake_part.body_part,
[c[0], 0, c[2], 10])
if c[1] <= 0 and snake_part.y_pos == -10:
self.game_board_canvas.coords(snake_part.body_part,
[c[0], 290, c[2], 300])
snake_body = copy.copy(self.snake)
del snake_body[0]
sh_cords = self.str_coords(
self.game_board_canvas.coords(self.snake[0].body_part))
for snake_body_part in snake_body:
sbp_str_cords = self.str_coords(
self.game_board_canvas.coords(snake_body_part.body_part))
if sh_cords == sbp_str_cords:
self.game_over_text()
self.game = False
break
if len(self.traps) > 0:
head = self.snake[0]
hc = self.game_board_canvas.coords(head.body_part)
for trap in self.traps:
tc = self.game_board_canvas.coords(trap.get())
if tc[0] == hc[0] and tc[1] == hc[1] and tc[2] == hc[
2] and tc[3] == hc[3]:
self.game_over_text()
self.game = False
break
self.game_board.bind('<Key>',
lambda event, current_snake=self.snake: self.
move_snake(event, current_snake),
add='')
self.game_board_canvas.update()
self.game_board.mainloop()
#!/usr/bin/env python3
import pygame
from config import SIZE, WINDOW_NAME, CELL_SIZE
from src.food import Food
from src.snake import Snake, Side
from random import choice
window = pygame.display.set_mode((SIZE, SIZE))
pygame.display.set_caption(WINDOW_NAME)
screen = pygame.Surface((SIZE, SIZE))
coordinates = range(0, SIZE - CELL_SIZE, CELL_SIZE)
hero = Snake(choice(coordinates), choice(coordinates))
zet = Food(choice(coordinates), choice(coordinates))
done = True
while done:
for e in pygame.event.get():
if e.type == pygame.QUIT:
done = False
if e.type == pygame.KEYDOWN:
if (e.key == pygame.K_d
or e.key == pygame.K_RIGHT) and hero.side[-1] != Side.LEFT:
hero.turn_to(Side.RIGHT)
elif (e.key == pygame.K_s
or e.key == pygame.K_DOWN) and hero.side[-1] != Side.UP:
hero.turn_to(Side.DOWN)
elif (e.key == pygame.K_a
or e.key == pygame.K_LEFT) and hero.side[-1] != Side.RIGHT:
def get_snake(self):
return Snake({
'body': [(10, 15), (11, 15), (11, 16), (11, 17)],
'health': 100,
'id': 'abcd1234',
})
def test_create_snake(self):
assert type(Snake({})).__name__ == 'Snake'
def __init__(self, board, snake):
self.directions = ['L', 'R', 'U', 'D']
self.snake = Snake(snake)
self.board = Board(board)
def createSnake(x: int, y:int) -> Snake:
"""returns snake object at coordinates"""
return Snake(x, y)
def snakes(self) -> List[Snake]:
"""Retreive the list of snakes from the board data."""
if self._snakes is None:
snakes = [Snake(snake_data) for snake_data in self._data['snakes']]
self._snakes = snakes
return self._snakes
def test_eat():
snake = Snake()
before = snake.length
snake.eat()
assert before == snake.length - 1
class Game:
def __init__(self, x, y):
size = constants.BOARD_SIZE * constants.PIXEL_SIZE
border_size = constants.BORDER_SIZE * 2 + size
self.border_box = pg.rect.Rect((x, y), (border_size, border_size))
self.box = pg.rect.Rect((x + constants.BORDER_SIZE, y + constants.BORDER_SIZE), (size, size))
self.score = 3
self.score_font = pg.font.Font(Assets.BOXY_FONT, 24)
self.snake = Snake(int(constants.BOARD_SIZE / 2), constants.BOARD_SIZE / 2)
self.fruit = Fruit()
self.clock = pg.time.Clock()
self.count = 0
def lost(self):
return self.snake.lost()
def draw(self, window):
window.blit(Assets.BACKGROUND, self.border_box)
# Draw the score
text = self.score_font.render("Score: " + str(self.score), True, Colors.BLACK)
window.blit(text, (self.border_box.left + 3, self.border_box.top + 3))
# Draw the snake
for part in self.snake.body[1:]:
x, y = self.box.left + constants.PIXEL_SIZE * part[0], self.box.top + constants.PIXEL_SIZE * part[1]
window.blit(Assets.SNAKE_BODY, (x, y))
# Draw the fruit
x, y = self.box.left + constants.PIXEL_SIZE * self.fruit.position[0], self.box.top + constants.PIXEL_SIZE * self.fruit.position[1]
head = self.snake.body[0]
head_x, head_y = self.box.left + constants.PIXEL_SIZE * head[0], self.box.top + constants.PIXEL_SIZE * head[1]
rotated_head = pg.transform.rotate(Assets.SNAKE_HEAD, self.snake.direction)
window.blit(rotated_head, (head_x, head_y))
if self.fruit.golden:
window.blit(Assets.FRUIT_GOLDEN, (x, y))
else:
window.blit(Assets.FRUIT_NORMAL, (x, y))
def update(self, events):
self.clock.tick()
self.count += self.clock.get_time()
if self.count > constants.TICK:
self.count %= constants.TICK
self.snake.move()
if self.snake.body[0] == self.fruit.position:
if self.fruit.golden:
self.snake.grow += 3
self.score += 3
else:
self.snake.grow += 1
self.score += 1
while self.fruit.position in self.snake.body:
self.fruit.reposition()
for event in events:
if event.type == pg.KEYDOWN:
if event.key in (pg.K_UP, pg.K_w):
self.snake.change_direction(constants.NORTH)
elif event.key in (pg.K_RIGHT, pg.K_d):
self.snake.change_direction(constants.EAST)
elif event.key in (pg.K_DOWN, pg.K_s):
self.snake.change_direction(constants.SOUTH)
elif event.key in (pg.K_LEFT, pg.K_a):
self.snake.change_direction(constants.WEST)
def play(self):
global rows
snake = Snake(config)
apple = Apple(config)
clock = pygame.time.Clock()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
# Detect collision with apple
if snake.x == apple.x and snake.y == apple.y:
snake.eat()
apple = Apple(config)
# collision with body
for part in snake.body:
if snake.x == part[0] and snake.y == part[1]:
snake = Snake(config)
direction = snake.vision(apple)
snake.pre_direction = snake.direction
snake.decision(direction)
# collision with wall
if snake.collision_with_wall(snake.direction):
direction = (snake.direction + 1) % 4
if snake.collision_with_wall(direction):
direction = (snake.direction - 1) % 4
if snake.collision_with_wall(direction):
snake = Snake(config)
snake.direction = direction
snake.move()
self.display.fill(self.color)
pygame.draw.rect(self.display, Color.black,
((0, 0), (config.game_w, config.game_h)),
config.wall_offset)
apple.draw(self.display)
snake.draw(self.display)
score = self.font.render(f'Score: {snake.score}', True,
Color.black)
score_rect = score.get_rect(center=(config.game_w / 2,
config.game_h - 10))
self.display.blit(score, score_rect)
pygame.display.update()
clock.tick(config.fps)
def check_snake_hits(self, snake: Snake, other_snakes: List[Snake]):
# Check if hit itself, apple, power-ups
head = snake.head
if head in snake.tail and not snake.is_ghost_on:
snake.kill()
return
elif head == self.apple:
self.level += 1
snake.grow_by_one()
self.update_snakes_moves_per_ms()
self.new_objects()
self.sfx.apple.play()
elif head == self.pow_shield:
snake.set_shield(True)
self.pow_shield = None
self.sfx.powerup.play()
elif head == self.pow_ghost:
snake.set_ghost(GHOST_TIMER_MS)
self.pow_ghost = None
self.sfx.powerup.play()
elif head == self.pow_bomb:
self.minus_enemies += self.no_of_enemies
self.minus_poisons += self.no_of_poisons
self.enemies.clear()
self.poisons.clear()
self.pow_shield = self.pow_ghost = self.pow_bomb = None
self.sfx.powerup.play()
elif head == self.pow_bullets:
snake.add_bullets(INIT_NO_OF_BULLETS)
self.pow_bullets = None
self.sfx.powerup.play()
# Check if hit other snake
if not snake.is_ghost_on:
for s in other_snakes:
if head in s:
snake.kill()
return
# Check if hit enemy
if not snake.is_ghost_on:
try:
self.enemies.remove(next(e for e in self.enemies if e == head))
if snake.is_shield_on:
snake.set_shield(False)
self.sfx.shield_off.play()
else:
snake.kill()
return
except StopIteration:
pass
# Check if hit poison
if not snake.is_ghost_on:
try:
self.poisons.remove(next(e for e in self.poisons if e == head))
if snake.is_shield_on:
snake.set_shield(False)
self.sfx.shield_off.play()
else:
snake.shrink(1)
if len(snake) < 1:
snake.kill()
return
else:
self.sfx.poison.play()
except StopIteration:
pass
def createSnake(self):
self.snake = Snake(0.0, 0.0)
self.createFood()
self.time = time.time()
return self.snake
type=int)
parser.add_argument("--dataset",
default="./snake_train_dataset.csv",
help="dataset path",
type=str)
args = parser.parse_args()
f = open(args.dataset, 'w')
f.write(
'w0,w1,w2,w3,a0,a01,a1,a12,a2,a23,a3,a30,b0,b01,b1,b12,b2,b23,b3,b30,direction'
+ '\n')
rows = 0
pbar = tqdm(total=100, position=0, leave=True)
snake = Snake(config)
apple = Apple(config)
while rows < args.count:
# Detect collision with apple
if snake.x == apple.x and snake.y == apple.y:
snake.eat()
apple = Apple(config)
# collision with body
for part in snake.body:
if snake.x == part[0] and snake.y == part[1]:
snake = Snake(config)
direction = snake.vision(apple)
snake.pre_direction = snake.direction
class Scene:
def __init__(self):
self.started = False
self.bg_colour = (240, 160, 212)
self.area_info = (0, 0, 450, 450)
self.cell_amt = 18
self.back_colour = Color(231, 242, 198)
self.cell_colour = Color(200, 200, 227)
self.cell_size = (self.area_info[2] // self.cell_amt,
self.area_info[3] // self.cell_amt)
self.play_rect = Rect(self.area_info)
self.play_surf = Surface(self.area_info[2:])
self.play_surf.fill(self.back_colour)
self.circ_radius = 25
self.fruit = Collectible(self.cell_size, self.cell_amt)
self.score = 0
self.snake = Snake(self.cell_size, self.cell_amt)
self.snake_is_dead = False
self.draw_checkerboard()
self.font = SysFont("Arial", 30)
self.text = self.font.render("Score: 0", False, self.back_colour)
def draw_checkerboard(self):
for i in range(self.cell_amt):
for j in range(self.cell_amt):
if (i % 2 == 0) ^ (j % 2 == 0):
cr = Rect((i * self.cell_size[0], j * self.cell_size[1]),
self.cell_size)
draw_rect(self.play_surf, self.cell_colour, cr)
def start(self):
self.fruit.start()
self.snake.start()
self.started = True
return self.started
def update(self, delta):
if not self.snake_is_dead:
if get_pressed_keys()[K_SPACE]:
self.fruit.reposition()
elif get_pressed_keys()[K_p]:
self.snake.set_growth()
self.handle_collected()
self.snake.move()
self.fruit.update(delta)
self.collect()
self.snake.update(delta)
if not self.snake.check_alive():
self.snake_is_dead = True
self.text = self.font.render(f"Game Over", False,
self.back_colour)
def render(self, target):
target.fill(self.bg_colour)
if not self.snake_is_dead:
target.blit(self.play_surf, self.play_rect)
self.fruit.render(target)
self.snake.render(target)
target.blit(self.text, (560, 90))
else:
target.blit(self.text, (90, 90))
def collect(self):
if self.fruit.get_current_cell() == self.snake.get_head():
self.snake.set_growth()
snake_pos = self.snake.get_snake()
while self.fruit.get_current_cell() in snake_pos:
self.fruit.reposition()
self.handle_collected()
def handle_collected(self):
self.score += 1
if self.score % 5 == 0:
self.snake.speed_change = True
self.text = self.font.render(f"Score: {self.score}", False,
self.back_colour)
class Game:
def __init__(self, board, snake):
self.directions = ['L', 'R', 'U', 'D']
self.snake = Snake(snake)
self.board = Board(board)
def play(self, move):
res = self.does_move_exist(move)
if res:
self.snake.perform_move(res)
return True
return False
def does_move_exist(self, direction):
if direction == 'L':
res = self.can_go_left()
if direction == 'R':
res = self.can_go_right()
if direction == 'U':
res = self.can_go_up()
if direction == 'D':
res = self.can_go_down()
return res
def can_go_left(self):
nbr_col = self.board.nbr_col
head = self.snake.head
position_left = head[0] - 1
if position_left >= 0 and position_left <= nbr_col:
new_position = [position_left, head[1]]
if self.snake.position_free(new_position):
return new_position
return False
def can_go_right(self):
nbr_col = self.board.nbr_col
head = self.snake.head
position_right = head[0] + 1
if position_right >= 0 and position_right <= nbr_col:
new_position = [position_right, head[1]]
if self.snake.position_free(new_position):
return new_position
return False
def can_go_down(self):
nbr_row = self.board.nbr_row
head = self.snake.head
position_down = head[1] + 1
if position_down >= 0 and position_down <= nbr_row:
new_position = [head[0], position_down]
if self.snake.position_free(new_position):
return new_position
return False
def can_go_up(self):
nbr_row = self.board.nbr_row
head = self.snake.head
position_up = head[1] - 1
if position_up >= 0 and position_up <= nbr_row:
new_position = [head[0], position_up]
if self.snake.position_free(new_position):
return new_position
return False