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| import pygame | |
| from pygame.locals import * | |
| from random import randint | |
| import os, sys | |
| ARRAY_SIZE = 50 | |
| DIRECTIONS = { | |
| "LEFT": (-1, 0), | |
| "RIGHT": (1, 0), | |
| "UP": (0, 1), | |
| "DOWN": (0, -1), | |
| } | |
| snake, fruit = None, None | |
| def init(): | |
| global snake | |
| snake = [ (0, 2), (0, 1), (0, 0)] | |
| place_fruit((ARRAY_SIZE // 2, ARRAY_SIZE // 2)) | |
| def place_fruit(coord=None): | |
| global fruit | |
| if coord: | |
| fruit = coord | |
| return | |
| while True: | |
| x = randint(0, ARRAY_SIZE-1) | |
| y = randint(0, ARRAY_SIZE-1) | |
| if (x, y) not in snake: | |
| fruit = x, y | |
| return | |
| def step(direction): | |
| old_head = snake[0] | |
| movement = DIRECTIONS[direction] | |
| new_head = (old_head[0]+movement[0], old_head[1]+movement[1]) | |
| if ( | |
| new_head[0] < 0 or | |
| new_head[0] >= ARRAY_SIZE or | |
| new_head[1] < 0 or | |
| new_head[1] >= ARRAY_SIZE or | |
| new_head in snake | |
| ): | |
| return False | |
| if new_head == fruit: | |
| place_fruit() | |
| else: | |
| tail = snake[-1] | |
| del snake[-1] | |
| snake.insert(0, new_head) | |
| return True | |
| def print_field(): | |
| os.system('clear') | |
| print('=' * (ARRAY_SIZE+2)) | |
| for y in range(ARRAY_SIZE-1, -1, -1): | |
| print('|', end='') | |
| for x in range(ARRAY_SIZE): | |
| out = ' ' | |
| if (x, y) in snake: | |
| out = 'X' | |
| elif (x, y) == fruit: | |
| out = 'O' | |
| print(out, end='') | |
| print('|') | |
| print('=' * (ARRAY_SIZE+2)) | |
| def test(): | |
| global fruit | |
| init() | |
| assert step('UP') | |
| assert snake == [(0, 3), (0, 2), (0, 1)] | |
| fruit = (0, 4) | |
| assert step('UP') | |
| assert snake == [(0, 4), (0, 3), (0, 2), (0, 1)] | |
| assert fruit != (0, 4) | |
| assert not step('DOWN'), 'Kdyz nacouvam do sebe, umru!' | |
| DIRS = ['UP', 'RIGHT', 'DOWN', 'LEFT'] | |
| def run(): | |
| init() | |
| direction = 0 | |
| pygame.init() | |
| s = pygame.display.set_mode((ARRAY_SIZE * 10, ARRAY_SIZE * 10)) | |
| #pygame.display.set_caption('Snake') | |
| appleimage = pygame.Surface((10, 10)) | |
| appleimage.fill((0, 255, 0)) | |
| img = pygame.Surface((10, 10)) | |
| img.fill((255, 0, 0)) | |
| clock = pygame.time.Clock() | |
| pygame.time.set_timer(1, 100) | |
| while True: | |
| e = pygame.event.wait() | |
| if e.type == QUIT: | |
| pygame.quit() | |
| elif e.type == MOUSEBUTTONDOWN: | |
| if e.button == 3: | |
| direction = (direction+1) % 4 | |
| elif e.button == 1: | |
| direction = (direction+3) % 4 | |
| if not step(DIRS[direction]): | |
| pygame.quit() | |
| sys.exit(1) | |
| s.fill((255, 255, 255)) | |
| for bit in snake: | |
| s.blit(img, (bit[0] * 10, (ARRAY_SIZE - bit[1] - 1) * 10)) | |
| s.blit(appleimage, (fruit[0] * 10, (ARRAY_SIZE - fruit[1]-1) * 10)) | |
| pygame.display.flip() | |
| run() |
I can't move it.....
so I changed your code little bit-------------- your code ----------------
while True: e = pygame.event.wait() if e.type == QUIT: pygame.quit() elif e.type == MOUSEBUTTONDOWN: if e.button == 3: direction = (direction+1) % 4 elif e.button == 1: direction = (direction+3) % 4 if not step(DIRS[direction]): pygame.quit() sys.exit(1)------------------ changed code --------------------------
while True: e = pygame.event.wait() if e.type == QUIT: pygame.quit() elif e.type == KEYDOWN: key=pygame.key.get_pressed() if key[pygame.K_UP]: direction = 0 elif key[pygame.K_RIGHT]: direction = 1 elif key[pygame.K_DOWN]: direction = 2 elif key[pygame.K_LEFT]: direction = 3 #elif e.type == MOUSEBUTTONDOWN: # if e.button == 3: # direction = (direction+1) % 4 # elif e.button == 1: # direction = (direction+3) % 4 if not step(DIRS[direction]): pygame.quit() sys.exit()
Plus you can add a test on the previous snake's direction to avoid accidental Game Over. The events should be as follows
while True:
e = pygame.event.wait()
if e.type == QUIT:
pygame.quit()
elif e.type == KEYDOWN:
key=pygame.key.get_pressed()
if key[pygame.K_UP] and direction != 2: direction = 0
elif key[pygame.K_RIGHT] and direction != 3: direction = 1
elif key[pygame.K_DOWN] and direction != 0: direction = 2
elif key[pygame.K_LEFT] and direction != 1: direction = 3
if not step(DIRS[direction]):
pygame.quit()
sys.exit()
My snake game is working, but the program ends before i die, this is my code:
import pygame
from pygame.locals import *
from random import randint
import os, sys
ARRAY_SIZE = 50
DIRECTIONS = {
"LEFT": (-1, 0),
"RIGHT": (1, 0),
"UP": (0, 1),
"DOWN": (0, -1),
}
snake, fruit = None, None
def init():
global snake
snake = [ (0, 2), (0, 1), (0, 0)]
place_fruit((ARRAY_SIZE // 2, ARRAY_SIZE // 2))
def place_fruit(coord=None):
global fruit
if coord:
fruit = coord
return
while True:
x = randint(0, ARRAY_SIZE-1)
y = randint(0, ARRAY_SIZE-1)
if (x, y) not in snake:
fruit = x, y
return
def step(direction):
old_head = snake[0]
movement = DIRECTIONS[direction]
new_head = (old_head[0]+movement[0], old_head[1]+movement[1])
if (
new_head[0] < 0 or
new_head[0] >= ARRAY_SIZE or
new_head[1] < 0 or
new_head[1] >= ARRAY_SIZE or
new_head in snake
):
return False
if new_head == fruit:
place_fruit()
else:
tail = snake[-1]
del snake[-1]
snake.insert(0, new_head)
return True
def print_field():
os.system('clear')
print('=' * (ARRAY_SIZE+2))
for y in range(ARRAY_SIZE-1, -1, -1):
print('|', end='')
for x in range(ARRAY_SIZE):
out = ' '
if (x, y) in snake:
out = 'X'
elif (x, y) == fruit:
out = 'O'
print(out, end='')
print('|')
print('=' * (ARRAY_SIZE+2))
def test():
global fruit
init()
assert step('UP')
assert snake == [(0, 3), (0, 2), (0, 1)]
fruit = (0, 4)
assert step('UP')
assert snake == [(0, 4), (0, 3), (0, 2), (0, 1)]
assert fruit != (0, 4)
assert not step('DOWN'), 'Kdyz nacouvam do sebe, umru!'
DIRS = ['UP', 'RIGHT', 'DOWN', 'LEFT']
def run():
init()
direction = 0
pygame.init()
s = pygame.display.set_mode((ARRAY_SIZE * 10, ARRAY_SIZE * 10))
#pygame.display.set_caption('Snake')
appleimage = pygame.Surface((10, 10))
appleimage.fill((0, 255, 0))
img = pygame.Surface((10, 10))
img.fill((255, 0, 0))
clock = pygame.time.Clock()
pygame.time.set_timer(1, 100)
while True:
e = pygame.event.wait()
if e.type == QUIT:
pygame.quit()
elif e.type == KEYDOWN:
key=pygame.key.get_pressed()
if key[pygame.K_UP]: direction = 0
elif key[pygame.K_RIGHT]: direction = 1
elif key[pygame.K_DOWN]: direction = 2
elif key[pygame.K_LEFT]: direction = 3
#elif e.type == MOUSEBUTTONDOWN:
# if e.button == 3:
# direction = (direction+1) % 4
# elif e.button == 1:
# direction = (direction+3) % 4
if not step(DIRS[direction]):
pygame.quit()
sys.exit()
s.fill((255, 255, 255))
for bit in snake:
s.blit(img, (bit[0] * 10, (ARRAY_SIZE - bit[1] - 1) * 10))
s.blit(appleimage, (fruit[0] * 10, (ARRAY_SIZE - fruit[1]-1) * 10))
pygame.display.flip()
run()
Please help me
@lleavelle You need to be a bit more specific, when I run your code I can play the game just fine and it only quits after I crash. What is happening for you?
@Phineas2019
Open cmd and write "pip install pygame"