请尝试使我的蛇的头和身体连接一段时间。我为原始蛇创建了一个功能，为身体创建了另一个功能。我使用了一个列表来使用原始位置的原始x和y位置来生长身体，但是我缺少链接来使头部移动整个身体，请问有人可以给我一些想法吗？
游戏的目标是使蛇活着而不会撞到边界或撞到自己身上。 我的蛇游戏版本带有迷宫障碍和背景图片
文件：snake_game.py
"""
File: snake_game.py
----------------
The Goal of the game is to keep the snake alive without hitting the borders or crashing into itself.
My version of the snake game is with a maze obstacle and a background picture
"""
import pygame
import random
import math
from simpleimage import SimpleImage
# Importing Image module from PIL package
from PIL import Image
N_ROWS = 6
N_COLS = 6
PATCH_SIZE = 111
WIDTH = N_COLS * PATCH_SIZE
HEIGHT = N_ROWS * PATCH_SIZE
PATCH_NAME = 'images/simba-sq1.jpg'
SCREEN_WIDTH = 600 # Width of screen in pixels
SCREEN_HEIGHT = 600 # Height of screen in pixels
SNAKE_SIZE = 25
# pass parameters for new coordinates
def draw_snake(screen, x, y):
radius = 8
color = 40, 113, 68
# tried doing a rounded snake lol decided to work with this
inside_rec = pygame.draw.rect(screen, color, [x, y, SNAKE_SIZE, SNAKE_SIZE])
pygame.draw.rect(screen, color, inside_rec, radius)
# draw eyes
radius = 4 # size
circle_middle = (x + 20, y + 5)
circle_middle2 = (x + 5, y + 5)
pygame.draw.circle(screen, (254, 220, 0), circle_middle, radius)
pygame.draw.circle(screen, (254, 220, 0), circle_middle2, radius)
def draw_snake_food(screen, x, y):
snake_food_img = pygame.image.load('images/frog.png')
screen.blit(snake_food_img, (x, y))
# using the distance formula to calculate how close both objects are
# D = Square root(x2 - x1)^2 + (y2 -y1)^2
def ate_food(snake_x, snake_y, snake_food_x, snake_food_y):
distance = math.sqrt(math.pow(snake_x - snake_food_x, 2) +
(math.pow(snake_y - snake_food_y, 2)))
if distance < 27:
return True
else:
return False
def draw_new_body(screen, snake_list):
color = 40, 113, 68
for x in snake_list:
pygame.draw.rect(screen, color, [x[0], x[1], SNAKE_SIZE, SNAKE_SIZE])
# def our_snake(screen, snake_block, snake_list):
# for x in snake_list:
# color = 40, 113, 68
# pygame.draw.rect(screen, color, [x[0], x[1], snake_block, snake_block])
def place_patch(row, col, patch, final_image):
for y in range(patch.height):
for x in range(patch.width):
pixel = patch.get_pixel(x, y)
final_image.set_pixel(x, y, pixel)
final_image.set_pixel(x + PATCH_SIZE * col, y + PATCH_SIZE * row, pixel)
return final_image
def make_recolored_patch(red_scale, green_scale, blue_scale):
"""
Implement this function to make a patch for the Warhol Filter. It
loads the patch image and recolors it.
:param red_scale: A number to multiply each pixels' red component by
:param green_scale: A number to multiply each pixels' green component by
:param blue_scale: A number to multiply each pixels' blue component by
:return: the newly generated patch
"""
patch = SimpleImage(PATCH_NAME)
for pixel in patch:
pixel.red *= red_scale
pixel.green *= green_scale
pixel.blue *= blue_scale
# TODO: your code here.
return patch
def show_score(screen, score, x, y):
# font for text font name and size (www.dafint.com) for more fonts
font = pygame.font.Font('freesansbold.ttf', 32)
score = font.render("Score : " + str(score), True, (255, 255, 255))
screen.blit(score, (x, y))
def main():
# Background Image
image = SimpleImage(PATCH_NAME)
# image.show()
final_image = SimpleImage.blank(WIDTH, HEIGHT)
# TODO: your code here.
# This is an example which should generate a pinkish patch
for row in range(N_ROWS):
for col in range(N_COLS):
# The uniform() method returns a random floating number between the two specified numbers (both included).
patch = make_recolored_patch(random.uniform(0, 0.5), random.uniform(0, 0.5), random.uniform(0, 0.5))
place_patch(row, col, patch, final_image)
# final_image.show()
final_image.pil_image.save("images/newkarel.png")
background_img = pygame.image.load('images/newkarel.png')
# initialise pygame to access methods and functions
# needed to run pygame
pygame.init()
# Create the window of the game
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
# Set Title, Icon and Background
pygame.display.set_caption("Snake Game by Bridget")
icon = pygame.image.load('images/snake.jpg')
pygame.display.set_icon(icon)
# Snake
snake_x = 300
snake_y = 480
change_snake_x = 0
change_snake_y = 0
snake_block = 10
# snakex = x - 30
# snakey = y
previous_x = snake_x
previous_y = snake_y
new_pos_x = 0
new_pos_y = 0
snake_food_x = random.randint(0, 536)
snake_food_y = random.randint(50, 150)
# score board
score = 0
game_running = True
direction = "up"
text_x = 10
text_y = 10
snake_list = []
length_of_snake = 0
clock = pygame.time.Clock()
while game_running:
# fill the background (R,G,B)
screen.fill((10, 46, 54))
# below the screen.fill so the image is infront.
# loading of image in while loop slow downs the process
screen.blit(background_img, (0, 0))
# gets and checks all events
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_running = False
# if keystroke is pressed check whether its right or left
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
change_snake_x = -5
direction = "left"
elif event.key == pygame.K_RIGHT:
change_snake_x = 5
direction = "right"
elif event.key == pygame.K_UP:
change_snake_y = -5
direction = "up"
elif event.key == pygame.K_DOWN:
direction = "down"
change_snake_y = 5
# stop moving if player releases key
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT or \
event.key == pygame.K_UP or event.key == pygame.K_DOWN:
change_snake_x = 0
change_snake_y = 0
# Update Movement of Snake
snake_x += change_snake_x
snake_y += change_snake_y
# ToDo Fix the extra issue with the wall
# sets wall boundaries for all coners
if snake_x <= 0 + 4:
# left wall
change_snake_x = 0 + 4
elif snake_x >= SCREEN_WIDTH - SNAKE_SIZE - 10:
# right wall
change_snake_x = SCREEN_WIDTH - SNAKE_SIZE - 10
elif snake_y <= 0 + 4:
# top wall
change_snake_y = 0 + 4
elif snake_y >= SCREEN_HEIGHT - SNAKE_SIZE - 10:
# bottom wall
change_snake_y = SCREEN_HEIGHT - SNAKE_SIZE - 10
# check to see the distance between the food and snake
if ate_food(snake_x, snake_y, snake_food_x, snake_food_y):
score += 1
length_of_snake += 1
for i in range(length_of_snake):
if i == 0:
previous_x = snake_x - (SNAKE_SIZE * i)
previous_y = snake_y
if direction == "left":
previous_x = snake_x + (SNAKE_SIZE * i)
previous_y = snake_y
elif direction == "right":
previous_x = snake_x - (SNAKE_SIZE * i)
previous_y = snake_y
elif direction == "up":
previous_x = snake_x
previous_y = snake_y + (SNAKE_SIZE * i)
elif direction == "down":
previous_x = snake_x
previous_y = snake_y - (SNAKE_SIZE * i)
# add to body part
snake_body = []
snake_body.append(previous_x)
snake_body.append(previous_y)
snake_list.append(snake_body)
# To keep randomly change food position
snake_food_x = random.randint(0, 536)
snake_food_y = random.randint(50, 450)
draw_new_body(screen, snake_list)
# add snake to background
draw_snake(screen, snake_x, snake_y)
# print(snake_x, snake_y)
# add snake food to background
draw_snake_food(screen, snake_food_x, snake_food_y)
# add Score Board
show_score(screen, score, text_x, text_y)
# update game
pygame.display.update()
clock.tick(60)
if __name__ == '__main__':
main()