200 lignes de code pour réaliser serpent PYTHON

200 lignes de code python pour atteindre serpent

Homme de peu de mots dit, finira par donner tout le code peut être d' ici fourchette, début de texte;

Liste des fonctionnalités actuellement mis en œuvre:

1. des touches de commande de serpent par les directions verticale et horizontale;
2. Appuyez sur le bord du mur, lui-même le jeu est terminé;
3. L'accès à la nourriture est la nourriture disparaît et devient plus selon le type de nourriture du corps;
4. La longueur actuelle de l'affichage;
5. Pause, l'interface est mort;

Exécuter la figure d'action

fragment Analyse

Code pour dessiner les différentes parties

# 游戏背景以及最下方用于显示文字的背景
def draw_background():
    # white background
    screen.fill(COLORS['white'])
    pygame.draw.rect(screen,COLORS['black'],(-100,GAME_SIZE[1],3000,200),0)

# 绘制墙壁
def draw_wall():
    for xy in wall_list:
        pygame.draw.rect(screen,COLORS['darkgray'],(xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT),0)

# 绘制蛇，包括头和身体
def draw_snake():
    head = snake_list[0]
    pygame.draw.circle(screen,COLORS['darkred'],(head[0],head[1]),int(SNAKE_WIDTH/2),0)
    for xy in snake_list[1:]:
        pygame.draw.rect(screen,COLORS['darkred'],(xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT),2)

# 绘制食物
def draw_food():
    for xyz in food_list:
        pygame.draw.rect(screen,FOOD_COLORS[xyz[2]-1],(xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT),0)

# 绘制下方的身体长度记录
def draw_context():
    txt = FONT_M.render('Snake length: '+str(len(snake_list)-1),True,COLORS['lightblue'])
    x,y = 10,GAME_SIZE[1]+(int((SIZE[1]-GAME_SIZE[1])/2))
    y = int(y-FONT_M.size('Count')[1]/2)
    screen.blit(txt,(x,y))

# 绘制暂停界面
def draw_pause():
    s = pygame.Surface(SIZE, pygame.SRCALPHA)
    s.fill((255,255,255,220))
    screen.blit(s, (0,0))
    txt = FONT_M.render('PAUSE',True,COLORS['darkgray'])
    x,y = SIZE[0]/2,SIZE[1]/2
    x,y = int(x-FONT_M.size('PAUSE')[0]/2),int(y-FONT_M.size('PAUSE')[1]/2)
    screen.blit(txt,(x,y))

# 绘制死亡界面
def draw_dead():
    s = pygame.Surface(SIZE, pygame.SRCALPHA)
    s.fill((255,255,255,240))
    screen.blit(s, (0,0))
    txt = FONT_M.render('YOU DEAD',True,COLORS['black'])
    x,y = SIZE[0]/2,SIZE[1]/2
    x,y = int(x-FONT_M.size('YOU DEAD')[0]/2),int(y-FONT_M.size('YOU DEAD')[1]/2)
    screen.blit(txt,(x,y))

la mort et la nourriture détection de collision

# 矩形覆盖检查作为碰撞检测，思路是取反，即取所有不会覆盖的情况的反即可
def rect_cover(rect1,rect2):
    left1 = int(rect1[0])
    right1 = int(rect1[0]+rect1[2])
    up1 = int(rect1[1])
    down1 = int(rect1[1]+rect1[3])
    left2 = int(rect2[0])
    right2 = int(rect2[0]+rect2[2])
    up2 = int(rect2[1])
    down2 = int(rect2[1]+rect2[3])

    if not (right2<=left1 or left2>=right1 or down2<=up1 or up2>=down1):
        return True
    return False

# 检查是否碰到食物
def check_food():
    # 头与食物
    first = snake_list[0]
    snake_head_rect = (first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
    for i in range(len(food_list)):
        xyz = food_list[i]
        food_rect = (xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT)
        if rect_cover(snake_head_rect,food_rect):
            add_body(xyz[2])
            del food_list[i]
            return True
    return False

# 检查是否碰到边缘、墙壁或者自己的身体
def check_dead():
    first = snake_list[0]
    snake_head_rect = (first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
    # 头与边缘
    if first[0] < 0 or first[0] > GAME_SIZE[0] or first[1] < 0 or first[1] > GAME_SIZE[1]:
        return True
    # 头与墙壁
    for xy in wall_list:
        wall_rect = (xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT)
        if rect_cover(snake_head_rect,wall_rect):
            return True
    # 头与自身
    for xy in snake_list[1:]:
        body_rect = (xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
        if rect_cover(snake_head_rect,body_rect):
            return True
    return False

Mise à jour de la nourriture et augmenter la longueur du corps du serpent

def add_food():
    while(True):
        xyz = [random.choice(X_LIST),random.choice(Y_LIST),random.choice([1,2,3,4])]
        if xyz not in wall_list:
            food_list.append(xyz)
            break
def add_body(length=1):
    for c in range(length):
        # 尾巴加一节
        last2,last1 = snake_list[-2],snake_list[-1]
        if last2[0]==last1[0]: # 竖着的两段
            if last2[1]>last1[1]: # 朝下
                snake_list.append([last1[0],last1[1]-SNAKE_WIDTH])
            else:
                snake_list.append([last1[0],last1[1]+SNAKE_WIDTH])
        else: # 横着的两段
            if last2[0]>last1[0]: # 朝右
                snake_list.append([last1[0]-SNAKE_WIDTH,last1[1]])
            else:
                snake_list.append([last1[0]+SNAKE_WIDTH,last1[1]])

Serpent déplacer automatiquement

# 通过按键判断当前蛇的朝向
if event.key == K_LEFT:
    if head in ['up','down']:
        head = 'left'
elif event.key == K_RIGHT:
    if head in ['up','down']:
        head = 'right'
elif event.key == K_UP:
    if head in ['left','right']:
        head = 'up'
elif event.key == K_DOWN:
    if head in ['left','right']:
        head = 'down'

# 通过朝向判断蛇的下一个位置
first = snake_list[0]
snake_list[1:] = snake_list[:-1]
if head == 'up':
    snake_list[0] = [first[0],first[1]-SNAKE_WIDTH]
elif head == 'down':
    snake_list[0] = [first[0],first[1]+SNAKE_WIDTH]
elif head == 'left':
    snake_list[0] = [first[0]-SNAKE_WIDTH,first[1]]
elif head == 'right':
    snake_list[0] = [first[0]+SNAKE_WIDTH,first[1]]

tous les codes

import sys,random

import pygame
from pygame.color import THECOLORS as COLORS
from pygame.locals import *


def draw_background():
    # white background
    screen.fill(COLORS['white'])
    pygame.draw.rect(screen,COLORS['black'],(-100,GAME_SIZE[1],3000,200),0)

def draw_wall():
    for xy in wall_list:
        pygame.draw.rect(screen,COLORS['darkgray'],(xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT),0)

def draw_snake():
    head = snake_list[0]
    pygame.draw.circle(screen,COLORS['darkred'],(head[0],head[1]),int(SNAKE_WIDTH/2),0)
    for xy in snake_list[1:]:
        pygame.draw.rect(screen,COLORS['darkred'],(xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT),2)

def draw_food():
    for xyz in food_list:
        pygame.draw.rect(screen,FOOD_COLORS[xyz[2]-1],(xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT),0)

def draw_context():
    txt = FONT_M.render('Snake length: '+str(len(snake_list)-1),True,COLORS['lightblue'])
    x,y = 10,GAME_SIZE[1]+(int((SIZE[1]-GAME_SIZE[1])/2))
    y = int(y-FONT_M.size('Count')[1]/2)
    screen.blit(txt,(x,y))

def draw_pause():
    s = pygame.Surface(SIZE, pygame.SRCALPHA)
    s.fill((255,255,255,220))
    screen.blit(s, (0,0))
    txt = FONT_M.render('PAUSE',True,COLORS['darkgray'])
    x,y = SIZE[0]/2,SIZE[1]/2
    x,y = int(x-FONT_M.size('PAUSE')[0]/2),int(y-FONT_M.size('PAUSE')[1]/2)
    screen.blit(txt,(x,y))

def draw_dead():
    s = pygame.Surface(SIZE, pygame.SRCALPHA)
    s.fill((255,255,255,240))
    screen.blit(s, (0,0))
    txt = FONT_M.render('YOU DEAD',True,COLORS['black'])
    x,y = SIZE[0]/2,SIZE[1]/2
    x,y = int(x-FONT_M.size('YOU DEAD')[0]/2),int(y-FONT_M.size('YOU DEAD')[1]/2)
    screen.blit(txt,(x,y))

def rect_cover(rect1,rect2):
    left1 = int(rect1[0])
    right1 = int(rect1[0]+rect1[2])
    up1 = int(rect1[1])
    down1 = int(rect1[1]+rect1[3])
    left2 = int(rect2[0])
    right2 = int(rect2[0]+rect2[2])
    up2 = int(rect2[1])
    down2 = int(rect2[1]+rect2[3])

    if not (right2<=left1 or left2>=right1 or down2<=up1 or up2>=down1):
        return True
    return False

def add_food():
    while(True):
        xyz = [random.choice(X_LIST),random.choice(Y_LIST),random.choice([1,2,3,4])]
        if xyz not in wall_list:
            food_list.append(xyz)
            break
def add_body(length=1):
    for c in range(length):
        # 尾巴加一节
        last2,last1 = snake_list[-2],snake_list[-1]
        if last2[0]==last1[0]: # 竖着的两段
            if last2[1]>last1[1]: # 朝下
                snake_list.append([last1[0],last1[1]-SNAKE_WIDTH])
            else:
                snake_list.append([last1[0],last1[1]+SNAKE_WIDTH])
        else: # 横着的两段
            if last2[0]>last1[0]: # 朝右
                snake_list.append([last1[0]-SNAKE_WIDTH,last1[1]])
            else:
                snake_list.append([last1[0]+SNAKE_WIDTH,last1[1]])

def check_food():
    # 头与食物
    first = snake_list[0]
    snake_head_rect = (first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
    for i in range(len(food_list)):
        xyz = food_list[i]
        food_rect = (xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT)
        if rect_cover(snake_head_rect,food_rect):
            add_body(xyz[2])
            del food_list[i]
            return True
    return False

def check_dead():
    first = snake_list[0]
    snake_head_rect = (first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
    # 头与边缘
    if first[0] < 0 or first[0] > GAME_SIZE[0] or first[1] < 0 or first[1] > GAME_SIZE[1]:
        return True
    # 头与墙壁
    for xy in wall_list:
        wall_rect = (xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT)
        if rect_cover(snake_head_rect,wall_rect):
            return True
    # 头与自身
    for xy in snake_list[1:]:
        body_rect = (xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
        if rect_cover(snake_head_rect,body_rect):
            return True
    return False

if __name__ == "__main__":
    # init pygame
    pygame.init()
    
    # contant
    GAME_SIZE = [900,900]
    SIZE = [GAME_SIZE[0],GAME_SIZE[1]+100]
    FONT_S = pygame.font.SysFont('Times', 50)
    FONT_M = pygame.font.SysFont('Times', 90)
    DIRECTION = ['up','right','down','left']
    X_LIST = [x for x in range(GAME_SIZE[0])]
    Y_LIST = [y for y in range(GAME_SIZE[1])]
    FOOD_COLORS = ((46,139,87),(199,21,133),(25,25,112),(255,215,0))

    # wall
    wall_list = [[100,200],[600,500],[350,200],[500,800]]
    WALL_WIDTH,WALL_HEIGHT = 30,30

    # food
    food_list = [(150,200,1),(300,500,1),(740,542,1),(300,600,1),(700,600,1)]
    FOOD_WIDTH,FOOD_HEIGHT = 14,14
    
    # create screen 500*500
    screen = pygame.display.set_mode(SIZE)
    
    # variable parameter
    snake_list = [[100+12*4,100],[100+12*3,100],[100+12*2,100],[100+12*1,100],[100,100]]
    SNAKE_WIDTH,SNAKE_HEIGHT = 12,12
    snake_v = 0
    count_time = 0

    # level
    frame = 0.05
    level = 1
    
    # main loop
    running = True
    pause = False
    dead = False
    head = 'right'
    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
                break
            elif event.type == pygame.MOUSEBUTTONDOWN:
                pause = not pause
            elif event.type == pygame.KEYUP:
                if event.key == K_LEFT:
                    if head in ['up','down']:
                        head = 'left'
                elif event.key == K_RIGHT:
                    if head in ['up','down']:
                        head = 'right'
                elif event.key == K_UP:
                    if head in ['left','right']:
                        head = 'up'
                elif event.key == K_DOWN:
                    if head in ['left','right']:
                        head = 'down'

        # update data
        if not pause and not dead:
            count_time += frame*level
            first = snake_list[0]
            snake_list[1:] = snake_list[:-1]
            if head == 'up':
                snake_list[0] = [first[0],first[1]-SNAKE_WIDTH]
            elif head == 'down':
                snake_list[0] = [first[0],first[1]+SNAKE_WIDTH]
            elif head == 'left':
                snake_list[0] = [first[0]-SNAKE_WIDTH,first[1]]
            elif head == 'right':
                snake_list[0] = [first[0]+SNAKE_WIDTH,first[1]]

        # background
        draw_background()
        # tunnel
        draw_wall()
        # choose item
        draw_snake()
        # food
        draw_food()
        # point
        draw_context()
        # pause
        if not dead and pause:
            draw_pause()
        # dead
        if dead:
            draw_dead()
        # flip
        pygame.display.flip()

        # pause 20ms
        pygame.time.delay(int(frame/level*1000))

        # check win or not
        dead = check_dead()

        if check_food():
            add_food()
    
    pygame.quit()

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entrepôt Petit gibier Collection

enfin

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