基于pygame實(shí)現(xiàn)貪吃蛇小游戲示例

更新時(shí)間：2021年12月16日 14:48:51 作者：可可卷

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游戲截圖

0926-1

0926-2

引入庫(kù)

import copy
import random
import sys
import pygame

初始化模型

# 蛇模型
snake_list = [[10, 10]]

# 食物的模型
x = random.randint(10, 490)
y = random.randint(10, 490)
food_point = [x, y]
food_r, food_g, food_b = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
food_color = pygame.Color(food_r, food_g, food_b)

# 初始方向
move_up = False
move_down = False
move_left = False
move_right = True

# 初始分?jǐn)?shù)
score=0

pygame.init()
screen = pygame.display.set_mode((500, 500))    # 畫布大小
title = pygame.display.set_caption('貪吃蛇')   # 名字
clock = pygame.time.Clock() # 游戲時(shí)鐘

獲取鍵盤事件

for event in pygame.event.get():    # 獲取鍵盤事件
    if event.type == pygame.QUIT:
        running=False
        sys.exit()
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_DOWN or event.key == pygame.K_s:
            move_up = False
            move_down = True
            move_left = False
            move_right = False
        if event.key == pygame.K_UP or event.key == pygame.K_w:
            move_up = True
            move_down = False
            move_left = False
            move_right = False
        if event.key == pygame.K_LEFT or event.key == pygame.K_a:
            move_up = False
            move_down = False
            move_left = True
            move_right = False
        if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
            move_up = False
            move_down = False
            move_left = False
            move_right = True
        if event.key == pygame.K_ESCAPE:    # esc關(guān)閉
            running=False
            sys.exit()
        if event.key ==pygame.K_SPACE and not running:
            running=True
            snake_list = [[10, 10]]
            score=0

移動(dòng)貪吃蛇

	# 身子移動(dòng)
    snake_len = len(snake_list) - 1
    while snake_len > 0:
        snake_list[snake_len] = copy.deepcopy(snake_list[snake_len - 1])
        snake_len -= 1

    # 蛇頭移動(dòng)
    if move_up:
        snake_list[snake_len][1] -= 10
        if snake_list[snake_len][1] < 0:
            snake_list[snake_len][1] = 500

    if move_down:
        snake_list[snake_len][1] += 10
        if snake_list[snake_len][1] > 500:
            snake_list[snake_len][1] = 0

    if move_left:
        snake_list[snake_len][0] -= 10
        if snake_list[snake_len][0] < 0:
            snake_list[snake_len][0] = 500

    if move_right:
        snake_list[snake_len][0] += 10
        if snake_list[snake_len][0] > 500:
            snake_list[snake_len][0] = 0

吃食物邏輯

# 蛇與食物碰撞檢測(cè)
if food_rect.collidepoint(snake_pos):
    snake_list.append(food_point)
    food_point = [random.randint(10, 490), random.randint(10, 490)] # 重新生成食物
    food_r, food_g, food_b = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
    food_color = pygame.Color(food_r, food_g, food_b)
    score+=1
    break

碰撞到自身邏輯

# 吃到自己 結(jié)束游戲
snake_head_rect = snake_rect[0] # 蛇頭
count = len(snake_rect)
while count > 1:
	if snake_head_rect.colliderect(snake_rect[count - 1]): # 檢測(cè)蛇頭與身子的所有點(diǎn)
		running=False
	count -= 1

結(jié)束游戲

    if not running:
        show_text(screen, (20,200), 'GAME OVER!', (227, 29, 18), False, 100)
        show_text(screen, (120,300), 'press space to try again', (223, 223, 223), False, 30)

顯示文字函數(shù)

def show_text(screen, pos, text, color, font_bold=False, font_size=60, font_italic=False):
    cur_font = pygame.font.SysFont('宋體', font_size)
    cur_font.set_bold(font_bold)
    cur_font.set_italic(font_italic)
    text_fmt = cur_font.render(text, 1, color)
    screen.blit(text_fmt, pos)

完整代碼

import copy
import random
import sys
import pygame


def show_text(screen, pos, text, color, font_bold=False, font_size=60, font_italic=False):
    cur_font = pygame.font.SysFont('宋體', font_size)
    cur_font.set_bold(font_bold)
    cur_font.set_italic(font_italic)
    text_fmt = cur_font.render(text, 1, color)
    screen.blit(text_fmt, pos)

# 蛇模型
snake_list = [[10, 10]]

# 食物的模型
x = random.randint(10, 490)
y = random.randint(10, 490)
food_point = [x, y]
food_r, food_g, food_b = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
food_color = pygame.Color(food_r, food_g, food_b)

# 初始方向
move_up = False
move_down = False
move_left = False
move_right = True

pygame.init()
screen = pygame.display.set_mode((500, 500))    # 畫布大小
title = pygame.display.set_caption('貪吃蛇')   # 名字
clock = pygame.time.Clock() # 游戲時(shí)鐘

running=True    # 游戲運(yùn)行標(biāo)志
score=0
while True:
    clock.tick(20)  # 20fps
    screen.fill([255, 255, 255])    # 背景填充
    for event in pygame.event.get():    # 獲取鍵盤事件
        if event.type == pygame.QUIT:
            running=False
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_DOWN or event.key == pygame.K_s:
                move_up = False
                move_down = True
                move_left = False
                move_right = False
            if event.key == pygame.K_UP or event.key == pygame.K_w:
                move_up = True
                move_down = False
                move_left = False
                move_right = False
            if event.key == pygame.K_LEFT or event.key == pygame.K_a:
                move_up = False
                move_down = False
                move_left = True
                move_right = False
            if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
                move_up = False
                move_down = False
                move_left = False
                move_right = True
            if event.key == pygame.K_ESCAPE:    # esc關(guān)閉
                running=False
                sys.exit()
            if event.key ==pygame.K_SPACE and not running:
                running=True
                snake_list = [[10, 10]]
                score=0

    # 身子移動(dòng)
    snake_len = len(snake_list) - 1
    while snake_len > 0:
        snake_list[snake_len] = copy.deepcopy(snake_list[snake_len - 1])
        snake_len -= 1

    # 蛇頭移動(dòng)
    if move_up:
        snake_list[snake_len][1] -= 10
        if snake_list[snake_len][1] < 0:
            snake_list[snake_len][1] = 500

    if move_down:
        snake_list[snake_len][1] += 10
        if snake_list[snake_len][1] > 500:
            snake_list[snake_len][1] = 0

    if move_left:
        snake_list[snake_len][0] -= 10
        if snake_list[snake_len][0] < 0:
            snake_list[snake_len][0] = 500

    if move_right:
        snake_list[snake_len][0] += 10
        if snake_list[snake_len][0] > 500:
            snake_list[snake_len][0] = 0

    if running:
        # 繪制得分
        show_text(screen, (200,20), f'score: {score}', (0, 0, 0), False, 30)
        # 繪制食物
        food_rect = pygame.draw.circle(screen, food_color, food_point, 15)
        # 繪制蛇
        snake_rect = []
        for snake_pos in snake_list:
            snake_rect.append(pygame.draw.circle(screen, food_color, snake_pos, 5))

            # 蛇與食物碰撞檢測(cè)
            if food_rect.collidepoint(snake_pos):
                snake_list.append(food_point)
                food_point = [random.randint(10, 490), random.randint(10, 490)] # 重新生成食物
                food_r, food_g, food_b = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
                food_color = pygame.Color(food_r, food_g, food_b)
                score+=1
                break



    # 吃到自己 結(jié)束游戲
    snake_head_rect = snake_rect[0] # 蛇頭
    count = len(snake_rect)
    while count > 1:
        if snake_head_rect.colliderect(snake_rect[count - 1]): # 檢測(cè)蛇頭與身子的所有點(diǎn)
            running=False
        count -= 1

    if not running:
        show_text(screen, (20,200), 'GAME OVER!', (227, 29, 18), False, 100)
        show_text(screen, (120,300), 'press space to try again', (223, 223, 223), False, 30)
    pygame.display.update()  # 繪制

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