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Snake1.py
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Snake1.py
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import pygame
import time
import random
pygame.init()
display_width = 800
display_height = 600
gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption("Slither")
icon = pygame.image.load('snakehead.png')
pygame.display.set_icon(icon)
bg = pygame.image.load('snakegameBg.jpg')
bg = pygame.transform.scale(bg,(800,600))
img = pygame.image.load('snakehead.png')
img = pygame.transform.scale(img,(30,30))
apple = pygame.image.load('apple2.png')
apple = pygame.transform.scale(apple,(40,40))
clock = pygame.time.Clock()
block_size = 30
AppleThickness = 40
FPS = 10
direction = "right"
smallfont = pygame.font.SysFont('comicsansms',25)
medfont = pygame.font.SysFont('comicsansms',50)
largefont = pygame.font.SysFont('comicsansms',80)
def pause():
paused = True
message_to_screen("Paused",(0,0,0),-100,size="large")
message_to_screen("Press C to continue or Q to quit",(0,0,0),25)
pygame.display.update()
while paused:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
paused= False
elif event.key == pygame.K_q:
pygame.quit()
quit()
gameDisplay.fill((0,0,0))
clock.tick(5)
def score(score):
text = smallfont.render("Score: "+str(score),True,(0,0,0))
gameDisplay.blit(text,[0,0])
def randAppleGen():
randAppleX = round(random.randrange(0,display_width-AppleThickness))
randAppleY = round(random.randrange(0,display_height-AppleThickness))
return randAppleX, randAppleY
randAppleX,randAppleY = randAppleGen()
def gameIntro():
intro = True
while intro:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
intro = False
if event.key == pygame.K_q:
pygame.quit()
quit()
gameDisplay.fill((151,240,108))
message_to_screen("Welcome to Slither",(200,110,5),-100,"large")
message_to_screen("The objective of the game is to eat red apples",(0,0,0),-30)
message_to_screen("The more apples you eat, the longer you get",(0,0,0),10)
message_to_screen("If you collide with yourself or edges ,you die!",(0,0,0),50)
message_to_screen("Press C to play or Q to quit.",(0,0,0),180)
pygame.display.update()
clock.tick(15)
def snake(block_size,snakeList):
if direction == "right":
head = pygame.transform.rotate(img,90)
elif direction == "left":
head = pygame.transform.rotate(img,270)
elif direction == "up":
head = pygame.transform.rotate(img,180)
elif direction == "down":
head = img
gameDisplay.blit(head,(snakeList[-1][0] , snakeList[-1][1]))
for XnY in snakeList[:-1]:
pygame.draw.rect(gameDisplay,(0,155,0),[XnY[0],XnY[1],block_size,block_size])
def message_to_screen(msg,color,y_displace=0,size="small"):
if size == "small":
screen_text = smallfont.render(msg,True,color)
elif size == "medium":
screen_text = medfont.render(msg,True,color)
elif size == "large":
screen_text = largefont.render(msg,True,color)
text_rect = screen_text.get_rect(center = [display_width/2 ,display_height/2+y_displace])
gameDisplay.blit(screen_text,text_rect)
def gameLoop():
global direction
direction = "right"
gameExit = False
gameOver = False
lead_x = display_width / 2
lead_y = display_height / 2
lead_x_change = 10
lead_y_change = 0
snakeList = []
snakeLength = 1
randAppleX,randAppleY = randAppleGen()
while not gameExit:
if gameOver == True:
message_to_screen("Game over",(255,0,0),-50,size = 'large')
message_to_screen("Press C to play again or Q to quit",(0,0,0),50,size="medium")
pygame.display.update()
while gameOver == True:
gameDisplay.fill((255,255,255))
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameOver = False
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
gameExit = True
gameOver = False
if event.key == pygame.K_c:
gameLoop()
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
direction = "left"
lead_x_change = -block_size
lead_y_change = 0
elif event.key == pygame.K_RIGHT:
direction = "right"
lead_x_change = block_size
lead_y_change = 0
elif event.key == pygame.K_UP:
direction = "up"
lead_y_change = - block_size
lead_x_change = 0
elif event.key == pygame.K_DOWN:
direction = "down"
lead_y_change = block_size
lead_x_change = 0
elif event.key == pygame.K_p:
pause()
if lead_x >=display_width or lead_x <0 or lead_y >=display_height or lead_y < 0 :
gameOver = True
lead_x += lead_x_change
lead_y += lead_y_change
#gameDisplay.fill((255,255,255))
gameDisplay.blit(bg,(0,0))
#pygame.draw.rect(gameDisplay,(255,0,0),[randAppleX,randAppleY,AppleThickness,AppleThickness])
gameDisplay.blit(apple,(randAppleX,randAppleY))
snakeHead = []
snakeHead.append(lead_x)
snakeHead.append(lead_y)
snakeList.append(snakeHead)
if len(snakeList) > snakeLength:
del snakeList[0]
for eachSegment in snakeList[:-1]:
if eachSegment == snakeHead:
gameOver = True
snake(block_size,snakeList)
score(snakeLength-1)
pygame.display.update()
if lead_x > randAppleX and lead_x < randAppleX + AppleThickness or lead_x + block_size > randAppleX and lead_x + block_size<randAppleX+ AppleThickness:
if lead_y >= randAppleY and lead_y <= randAppleY + AppleThickness:
randAppleX,randAppleY = randAppleGen()
snakeLength+=1
elif lead_y + block_size > randAppleY and lead_y + block_size < randAppleY + AppleThickness:
randAppleX,randAppleY = randAppleGen()
snakeLength+=1
clock.tick(FPS)
pygame.quit()
quit()
gameIntro()
gameLoop()