def home(game_values):
"""
Home page of the game / GUI
"""
width, height = rows * blocksize, columns * blocksize
# icon size constants
i_width, i_height = width // 4 + (rows // 3), height // 4
# icon position constants,
# sg for single, and double,
# sn for snake
sg_width = width // 10
sg_height = height // 4 + height // 10
sn_width, sn_height = (width // 2 - (width + rows) // 6, i_height // 10)
# Initializing objects
images = utils.load_images(os.path.dirname(__file__), i_width, i_height)
surface = Surface(*game_values, caption="Home Screen", color=BLACK)
surface.make_screen()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
surface.screen.blit(
images["single"],
(sg_width, sg_height),
)
surface.screen.blit(
images["double"],
(width - (sg_width + i_width), sg_height),
)
surface.screen.blit(images["snake"], (sn_width, sn_height))
# Highlighting an icon
x, y = pygame.mouse.get_pos()
if sg_height <= y <= sg_height + i_height:
# single player
if sg_width <= x <= sg_width + i_width:
rect = pygame.Rect((sg_width, sg_height), (i_width, i_height))
pygame.draw.rect(surface.screen, RED, rect, 3)
if pygame.mouse.get_pressed()[0]:
return 1
# double player
elif (width - (sg_width + i_width) <= x <= width -
(sg_width + i_width) + i_width):
rect = pygame.Rect((width - (sg_width + i_width), sg_height),
(i_width, i_height))
pygame.draw.rect(surface.screen, RED, rect, 3)
if pygame.mouse.get_pressed()[0]:
return 2
pygame.display.flip()
:param
head - tells the front of the snake
tail - Tells the back of the snake
:return
Boolean -> running
"""
try:
self.spawns.append(tail)
# error in remove method if snake out of grid.
self.spawns.remove(head)
self.exists = (0, 1)[head != self.apple and self.exists]
except ValueError:
return False
return True
if __name__ == "__main__":
# Test for the creation of an apple
pygame.init()
game_values = {"rows": 30, "columns": 30, "blocksize": 10}.values()
surface = Surface(*game_values, caption="Snake Game", color=BLUE)
surface.make_screen()
apple = Apple(surface.screen, [snake], game_values, color=RED)
apple.make_rect()
running = True
end = False
while running and not end:
for event in pygame.event.get():
if event.type == pygame.QUIT:
end = True
def game(game_values, players=1):
"""
Overview
-------------
Surface - controls game screen and the parent class of the Snake and Apple class
It controls creation of the game screen and
making drawings on the game screen that the user sees
Snake - controls initialization of the snake onto the game screen
It handles a user's moves and passes it to the Surface class to make into a drawing
It handles whenever the snake collides with itself on the game screen
Apple - controls the location of apple spawns
It will pass a decided spawn location to the Surface clas to make into a drawing
It holds a list to store valid spawns and updates valid spawns after every move
It handles whenever the snake collides into the border of the screen.
:param
players - controls amount of players in the game
"""
def who_ate(snakes):
"""
Finds the eating snake to add tail back,
update apple spawns and
make a new apple
:param
snakes(iterable) - gives the players
"""
for user in snakes:
if user.snake[-1] == apple.apple:
user.snake.appendleft(user.snake[0])
apple.spawns.remove(user.snake[0])
apple.make_rect()
break
def move_snake(user, other_user, winner):
"""
Moves the snake head, and updates apple spawns
:param
user - current snake to move
other_user - other snake. Will be [] if single player
winner - sets the winner to other_user if user dies/collides
:return
running, winner
"""
if not user:
return True
other_user = other_user.snake if other_user else []
user.get_user_move()
head, tail = user.snake[-1], user.snake[0]
user.make_rect(*tail, surface.color)
user.make_rect(*head, user.color)
running = (apple.update_spawns(head, tail) and not user.in_itself()
and not user.in_other(other_user))
return running, winner
# time variables
wait_time = 100
fps = 30
clock = pygame.time.Clock()
# Initializing objects
surface = Surface(*game_values, caption="Snake Game", color=WHITE)
surface.make_screen()
snake = Snake(
surface.screen,
game_values,
x=-1,
pos=(surface.rows - 1, surface.rows - 2, -1),
color=GREEN,
)
if players == 2:
snake2 = Snake(surface.screen,
game_values,
typing="letters",
color=MAGENTA)
else:
snake2 = []
snakes = (snake, snake2)
apple = Apple(surface.screen, snakes, game_values, color=RED)
apple.make_rect()
pygame.display.flip()
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
# allow user time to make a move
clock.tick(fps)
pygame.time.wait(wait_time)
# move() Handles self collision, collision with others, and ollision with walls
running, winner = move_snake(snake, snake2, "snake2")
if running and snake2:
running, winner = move_snake(snake2, snake, "snake")
# handles when a snake eats an apple
if not apple.exists:
who_ate(snakes)
for player in snakes:
# Remove tail of each snake
if player:
player.snake.popleft()
if players == 1:
if len(snake) == surface.rows * surface.columns:
print("You won!")
print(f"snake length was {len(snake)}!")
elif players == 2:
print(
f"snake1 length was {len(snake)}!",
f"snake2 length was {len(snake2)}!",
f"The winner is {winner}!",
sep="\n",
)