ヘビを実現するための200行のPythonコード
200 貪欲なヘビを達成するためのPythonコードの行＃
言うまでもありませんが、すべてのコードは最後に記載されています。または、[ここ]（https://github.com/NemoHoHaloAi/Game/tree/master/YummySnake）フォーク（テキスト）から開始することもできます。
現在実装されている機能のリスト：
- スネークを制御するには、上、下、左、右の矢印キーを使用します。
- 端、壁、または自分自身に触れると、ゲームは終了します。
- 食べ物と接触すると食べ物は消え、食べ物の種類に応じて体が成長します。
- 現在の長さの表示。
- 一時停止と終了のインターフェイス。
アニメーションの実行##
コードスニペット分析##
各パーツを描画するためのコード###
# ゲームの背景と下部にテキストを表示するために使用される背景
def draw_background():
# white background
screen.fill(COLORS['white'])
pygame.draw.rect(screen,COLORS['black'],(-100,GAME_SIZE[1],3000,200),0)
# 壁を描く
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)
# 頭と体を含む蛇を描く
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)
# 食べ物を描く
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)
# 下に体長の記録を描く
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))
# 一時停止インターフェイスを描画します
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))
# 死のインターフェースを描く
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))
死と食物の衝突検査###
# 衝突検出として長方形のカバレッジチェックが使用されます。アイデアは、カバーされないすべての状況の逆を実行することです。
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])ifnot(right2<=left1 or left2>=right1 or down2<=up1 or up2>=down1):return True
return False
# 食べ物に触れていないか確認してください
def check_food():
# 頭と食べ物
first = snake_list[0]
snake_head_rect =(first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)for i inrange(len(food_list)):
xyz = food_list[i]
food_rect =(xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT)ifrect_cover(snake_head_rect,food_rect):add_body(xyz[2])
del food_list[i]return True
return False
# 端、壁、または体に触れていないか確認してください
def check_dead():
first = snake_list[0]
snake_head_rect =(first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)
# 頭と端
if first[0]<0 or first[0]> GAME_SIZE[0] or first[1]<0 or first[1]> GAME_SIZE[1]:return True
# 頭と壁
for xy in wall_list:
wall_rect =(xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT)ifrect_cover(snake_head_rect,wall_rect):return True
# 頭と自己
for xy in snake_list[1:]:
body_rect =(xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)ifrect_cover(snake_head_rect,body_rect):return True
return False
食べ物を更新し、ヘビの体の長さを増やします###
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 inrange(length):
# テールプラス1セクション
last2,last1 = snake_list[-2],snake_list[-1]if last2[0]==last1[0]: #2つの垂直段落
if last2[1]>last1[1]: #下向き
snake_list.append([last1[0],last1[1]-SNAKE_WIDTH])else:
snake_list.append([last1[0],last1[1]+SNAKE_WIDTH])else: #2つの水平セクション
if last2[0]>last1[0]: #右の方へ
snake_list.append([last1[0]-SNAKE_WIDTH,last1[1]])else:
snake_list.append([last1[0]+SNAKE_WIDTH,last1[1]])
スネークの自動移動###
# ボタンを押して、ヘビの現在の方向を決定します
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'
# ヘビの次の位置を見出しで判断します
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]]
すべてのコード##
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])ifnot(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 inrange(length):
# テールプラス1セクション
last2,last1 = snake_list[-2],snake_list[-1]if last2[0]==last1[0]: #2つの垂直段落
if last2[1]>last1[1]: #下向き
snake_list.append([last1[0],last1[1]-SNAKE_WIDTH])else:
snake_list.append([last1[0],last1[1]+SNAKE_WIDTH])else: #2つの水平セクション
if last2[0]>last1[0]: #右の方へ
snake_list.append([last1[0]-SNAKE_WIDTH,last1[1]])else:
snake_list.append([last1[0]+SNAKE_WIDTH,last1[1]])
def check_food():
# 頭と食べ物
first = snake_list[0]
snake_head_rect =(first[0]-SNAKE_WIDTH/2,first[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)for i inrange(len(food_list)):
xyz = food_list[i]
food_rect =(xyz[0]-FOOD_WIDTH/2,xyz[1]-FOOD_WIDTH/2,FOOD_WIDTH,FOOD_HEIGHT)ifrect_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)
# 頭と端
if first[0]<0 or first[0]> GAME_SIZE[0] or first[1]<0 or first[1]> GAME_SIZE[1]:return True
# 頭と壁
for xy in wall_list:
wall_rect =(xy[0]-WALL_WIDTH/2,xy[1]-WALL_WIDTH/2,WALL_WIDTH,WALL_HEIGHT)ifrect_cover(snake_head_rect,wall_rect):return True
# 頭と自己
for xy in snake_list[1:]:
body_rect =(xy[0]-SNAKE_WIDTH/2,xy[1]-SNAKE_WIDTH/2,SNAKE_WIDTH,SNAKE_HEIGHT)ifrect_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 inrange(GAME_SIZE[0])]
Y_LIST =[y for y inrange(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()ifcheck_food():add_food()
pygame.quit()
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