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First version of the snake game in python
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# Snake Game | |
# By virtualanup | |
# http://www.virtualanup.com | |
import pygame,random | |
from pygame.locals import * | |
from sys import exit | |
import math | |
#just some declarations | |
level=25 #5 easy 20 medium 50 hard | |
fps=10 #the higher the fps, the harder is the game | |
il=10 #the initial length of the snake | |
windowtiles=59 #number of blocks that fit on the screen. Count starts from 0. The bigger the number of tiles, the bigger will be the window | |
blockwidth=15 #size of one block in pixel. It may be snake body or food or obstacles | |
winsize=blockwidth*windowtiles | |
black=(0,0,0) | |
white = (255,255,255) | |
bodycolor=(100,200,150) | |
foodcolor=(200,23,23) | |
obscolor=(23,23,200) | |
#direction of snake | |
left=-1,0 | |
right=1,0 | |
up=0,-1 | |
down=0,1 | |
snake=[(0,0)]*il | |
foodpos=(0,0) | |
newdirection=direction=right #snake is moving right by default | |
score=0 | |
obstacles=[] | |
for i in range(1,level): | |
lo=random.randrange(1,windowtiles),random.randrange(1,windowtiles) #last obstacle | |
obstacles.append(lo) | |
for j in range(1,random.randint(1,int(level/2))): | |
if(random.randint(1,2) == 1): | |
lo=(lo[0]+1,lo[1]) | |
else: | |
lo=(lo[0],lo[1]+1) | |
if( 0<lo[0]<=windowtiles and 0<lo[1]<=windowtiles ): | |
obstacles.append(lo) | |
def rendertext(surface,text): | |
font = pygame.font.Font(None, 22) | |
text = font.render(text, 1, white) | |
textpos = text.get_rect(centerx=surface.get_width()/2,y=winsize+blockwidth) | |
surface.blit(text, textpos) | |
def matchcheat(cheatstr,code): | |
if len(cheatstr)<len(code): | |
return False | |
if( cheatstr[-len(code):]==code): | |
return True | |
return False | |
cheat="" | |
if(__name__ == "__main__"): | |
pygame.init() | |
screen = pygame.display.set_mode((winsize,winsize+35)) | |
pygame.display.set_caption('Python Snake') | |
dead=False | |
clock = pygame.time.Clock() | |
while dead==False: | |
clock.tick(fps) | |
for event in pygame.event.get(): | |
if event.type == QUIT: | |
pygame.quit();exit() | |
if event.type == pygame.KEYDOWN: | |
if event.key == K_UP: | |
if direction != down: | |
newdirection=up | |
elif event.key == K_DOWN: | |
if direction != up: | |
newdirection=down | |
elif event.key == K_LEFT: | |
if direction != right: | |
newdirection=left | |
elif event.key == K_RIGHT: | |
if direction != left: | |
newdirection=right | |
else: | |
cheat=cheat+event.unicode | |
if matchcheat(cheat,"getmorescore"): | |
score+=99999 | |
elif matchcheat(cheat,"longlongsnake"): | |
snake=snake+snake[2:]*2 | |
elif matchcheat(cheat,"doublemyscore"): | |
score*=2 | |
elif matchcheat(cheat,"noobstacles"): | |
obstacles=[] | |
screen.fill(black); | |
#update the snake | |
#check if there is food | |
direction=newdirection | |
if(foodpos == (0,0)): | |
foodpos=random.randrange(1,windowtiles),random.randrange(1,windowtiles) | |
while (foodpos in snake or foodpos in obstacles): | |
foodpos=random.randrange(1,windowtiles),random.randrange(1,windowtiles) | |
#update the snake | |
head=snake[0]#head of snake | |
head=(head[0]+direction[0],head[1]+direction[1]) | |
#wrap the snake around the window | |
headx=windowtiles if head[0]<0 else 0 if head[0]>windowtiles else head[0] | |
heady=windowtiles if head[1]<0 else 0 if head[1]>windowtiles else head[1] | |
head=(headx,heady) | |
if head in snake or head in obstacles: | |
screen.fill(black); #remove the score | |
rendertext(screen,"You lose...Your score is "+str(score)) | |
dead=True | |
else: | |
if(head==foodpos): | |
foodpos=0,0 | |
score+=5 | |
snake.append(head) | |
rendertext(screen,"Score : "+str(score)) | |
snake=[head]+[snake[i-1] for i in range(1,len(snake))] | |
#draw world | |
pygame.draw.rect(screen,foodcolor,(foodpos[0]*blockwidth,foodpos[1]*blockwidth,blockwidth,blockwidth),0) | |
for block in snake: | |
pygame.draw.rect(screen,bodycolor,(block[0]*blockwidth,block[1]*blockwidth,blockwidth,blockwidth),0) | |
for block in obstacles: | |
pygame.draw.rect(screen,obscolor,(block[0]*blockwidth,block[1]*blockwidth,blockwidth,blockwidth),0) | |
pygame.display.update() | |
while True: #wait till the user clicks close button | |
for event in pygame.event.get(): | |
if event.type == QUIT: | |
pygame.quit();exit() |
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