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Snake.py
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Snake.py
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#Snake Game!
#Game imports
import pygame, sys, random, time
#Checking errors
check_errors = pygame.init()
if check_errors[1] > 0:
print("(!) Had {0} initializing errors, exiting...".format(check_errors[1]))
sys.exit(-1)
else:
print("(+) PyGame successfully initialized!")
#Play Surface(Screen)
#setting up the resolution
playSurface = pygame.display.set_mode((720, 460)) #setmode accepts only single argumentbut accepts tupple
pygame.display.set_caption('Snake game!')
#time.sleep(5) #Screen closes in 5 seconds
#colors
red = pygame.Color(255, 0, 0) # game over
green = pygame.Color(0, 255, 0) # snake
grey = pygame.Color(128,128,128) # score
white = pygame.Color(255, 255, 255) # background
brown = pygame.Color(165, 42, 42) # food
#FPS controller
fpsController = pygame.time.Clock()
#Positioning variables for the snake
snakePos = [100, 50]
snakeBody = [[100, 50], [90, 50], [80, 50]]
#location of food
foodPos = [random.randrange(1, 72)*10, random.randrange(1,46)*10]
foodSpawn = True
#defining direction variables
direction = 'RIGHT'
changeto = direction
score = 0
#Game over function
def gameOver():
myFont = pygame.font.SysFont('monaco', 72)
GOsurf = myFont.render('Nice Try! Game Over.', True, red)
GOrect = GOsurf.get_rect()
GOrect.midtop = (360, 15)
playSurface.blit(GOsurf, GOrect)
showScore()
pygame.display.flip()
# Following is the code for exiting the game automatically after game over
#time.sleep(4)
#pygame.quit() #pygame exit
#sys.exit() #console exit
def showScore(choice =1):
myFont = pygame.font.SysFont('monaco', 30)
sFont = pygame.font.SysFont('monaco', 24)
Ssurf = myFont.render('Score : {0}'.format(score), True, grey)
Srect = Ssurf.get_rect()
if choice == 1:
Srect.midtop = (80, 10)
else:
Srect.midtop = (360, 120)
playSurface.blit(Ssurf, Srect)
pygame.display.flip()
# Main Logic
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_RIGHT or event.key == ord('d'):
changeto = 'RIGHT'
if event.key == pygame.K_LEFT or event.key == ord('a'):
changeto = 'LEFT'
if event.key == pygame.K_UP or event.key == ord('w'):
changeto = 'UP'
if event.key == pygame.K_DOWN or event.key == ord('s'):
changeto = 'DOWN'
if event.key == pygame.K_ESCAPE:
pygame.event.post(pygame.event.Event(QUIT))
# validation of diraction
if changeto == 'RIGHT' and not direction == 'LEFT':
direction = 'RIGHT'
if changeto == 'LEFT' and not direction == 'RIGHT':
direction = 'LEFT'
if changeto == 'DOWN' and not direction == 'UP':
direction = 'DOWN'
if changeto == 'UP' and not direction == 'DOWN':
direction = 'UP'
if direction == 'RIGHT':
snakePos[0] += 10
if direction == 'LEFT':
snakePos[0] -= 10
if direction == 'DOWN':
snakePos[1] += 10
if direction == 'UP':
snakePos[1] -= 10
# Body Mechanism
snakeBody.insert(0, list(snakePos))
if snakePos[0] == foodPos[0] and snakePos[1] == foodPos[1]:
score += 1
foodSpawn = False
else:
snakeBody.pop()
if foodSpawn == False:
foodPos = [random.randrange(1, 72)*10, random.randrange(1,46)*10]
foodSpawn = True
# Background
playSurface.fill(white)
# Drawing snake
for pos in snakeBody:
pygame.draw.rect(playSurface, green,
pygame.Rect(pos[0], pos[1], 10, 10))
pygame.draw.rect(playSurface, brown,
pygame.Rect(foodPos[0], foodPos[1], 10, 10))
if snakePos[0] > 710 or snakePos[0] < 0:
gameOver()
if snakePos[1] > 450 or snakePos[1] <0:
gameOver()
for block in snakeBody[1:]:
if snakePos[0] == block[0] and snakePos[1] == block[1]:
gameOver()
pygame.display.flip()
showScore()
fpsController.tick(23)