import pygame
import random
from pygame.locals import *

class KittySprite(pygame.sprite.DirtySprite):
	
	def __init__(self, image_name):
		super(KittySprite, self).__init__()
		self.image = pygame.image.load(image_name)
		self.rect = self.image.get_rect()
		self.dirty = 1
		self.rect.topleft = (0, 0)

	def update(self):
		self.dirty = 1

	def move_to(self, pos):
		self.rect.center = posimport pygame
import random
from pygame.locals import *

class KittySprite(pygame.sprite.DirtySprite):
	
	def __init__(self, image_name):
		super(KittySprite, self).__init__()
		self.image = pygame.image.load(image_name)
		self.rect = self.image.get_rect()
		self.dirty = 1
		self.rect.topleft = (0, 0)

	def update(self):
		self.dirty = 1

	def move_to(self, pos):
		self.rect.center = pos
		self.dirty = 1


class BulletSprite(pygame.sprite.DirtySprite):

	def __init__(self, start, speed):
		super(BulletSprite, self).__init__()
		self.image = pygame.Surface((8, 30))
		self.rect = self.image.get_rect()
		self.dirty = 1
		self.rect.center = start
		self.speed = speed
		self.color = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))
		self.image.fill(self.color)
		self.framescolored = 0

	def update(self):
		self.rect.y -= self.speed
		if self.rect.top < 0:
			self.kill()
		if self.framescolored < 10:
			self.image.fill(self.color)
		else:
			self.image.fill((0, 0, 0))
			self.framescolored = 0
		self.framescolored += 1

def run_game(surf, sprite_group, bullets, kitty_sprite, clock):
	while True:
		events(sprite_group, kitty_sprite, bullets)
		update(sprite_group, bullets)
		render(surf, sprite_group, bullets)
		clock.tick(30)

pygame.init()

clock = pygame.time.Clock()

pygame.mouse.set_visible(False)

window_surface = pygame.display.set_mode((640, 480))
spr_group = pygame.sprite.GroupSingle()
kitty = KittySprite('kitten.png')
spr_group.add(kitty)
bullets = pygame.sprite.RenderUpdates()

def events(sprite_group, kitty_sprite, bullets):
	for event in pygame.event.get():
		if event.type == QUIT:
			pygame.quit()
		elif event.type == MOUSEMOTION:
			kitty_sprite.move_to(event.pos)
		elif event.type == MOUSEBUTTONUP:
			bull = BulletSprite(kitty_sprite.rect.center, 10)
			bullets.add(bull)

def update(sprite_group, bullets):
	sprite_group.update()
	bullets.update()

def render(surf, sprite_group, bullets):
	surf.fill((255, 255, 255))
	sprite_group.draw(surf)
	bullets.draw(surf)
	pygame.display.flip()

run_game(window_surface, spr_group, bullets, kitty, clock)
		self.dirty = 1


class BulletSprite(pygame.sprite.DirtySprite):

	def __init__(self, start, speed):
		super(BulletSprite, self).__init__()
		self.image = pygame.Surface((8, 30))
		self.rect = self.image.get_rect()
		self.dirty = 1
		self.rect.center = start
		self.speed = speed
		self.color = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))
		self.image.fill(self.color)
		self.framescolored = 0

	def update(self):
		self.rect.y -= self.speed
		if self.rect.top < 0:
			self.kill()
		if self.framescolored < 10:
			self.image.fill(self.color)
		else:
			self.image.fill((0, 0, 0))
			self.framescolored = 0
		self.framescolored += 1

def run_game(surf, sprite_group, bullets, kitty_sprite, clock):
	while True:
		events(sprite_group, kitty_sprite, bullets)
		update(sprite_group, bullets)
		render(surf, sprite_group, bullets)
		clock.tick(30)

pygame.init()

clock = pygame.time.Clock()

pygame.mouse.set_visible(False)

window_surface = pygame.display.set_mode((640, 480))
spr_group = pygame.sprite.GroupSingle()
kitty = KittySprite('kitten.png')
spr_group.add(kitty)
bullets = pygame.sprite.RenderUpdates()

def events(sprite_group, kitty_sprite, bullets):
	for event in pygame.event.get():
		if event.type == QUIT:
			pygame.quit()
		elif event.type == MOUSEMOTION:
			kitty_sprite.move_to(event.pos)
		elif event.type == MOUSEBUTTONUP:
			bull = BulletSprite(kitty_sprite.rect.center, 10)
			bullets.add(bull)

def update(sprite_group, bullets):
	sprite_group.update()
	bullets.update()

def render(surf, sprite_group, bullets):
	surf.fill((255, 255, 255))
	sprite_group.draw(surf)
	bullets.draw(surf)
	pygame.display.flip()

run_game(window_surface, spr_group, bullets, kitty, clock)