import pygame
from pygame.locals import *

winWidth=600
winHeight=480
color_CYAN=(0,255,255)
color_BLACK=(0,0,0)
bkgs=[]
bkg_texture_str="gameBkg.png"
all_sprites_list = pygame.sprite.Group()
clock = pygame.time.Clock()


class Background(pygame.sprite.Sprite):
	x = 0
	y = 0
	maxY=0
	def __init__(self, texture,x=0,y=0, width = 1, height = 1):
		super(Background,self).__init__()
		#self.image = pygame.Surface([width,height])
		self.image=texture
		#self.image.set_colorkey(self.WHITE)
		self.x=x
		self.y=y
		self.width=width
		self.height=height
		pygame.draw.rect(self.image,(0,0,0), [self.x, self.y, width, height])
		self.rect = self.image.get_rect()

		#self.id=id
	def scroll(self,speed):
		#print(speed)
		self.y+=(speed)
		if self.y>winHeight:
			self.y=-winHeight

	def update(self):
		#super(Background).update()
		self.scroll(10)

	def draw(self, surface):
		surface.blit(self.image, (self.x, self.y))


class Ship(pygame.sprite.Sprite):

	def __init__(self, texture,x=0,y=0, width = 1, height = 1):
		super(Ship,self).__init__()

if __name__=="__main__":
	pygame.init()

	caption="Image Test"
	pygame.display.set_caption(caption)

	ship= pygame.image.load("ship.png")
	pygame.display.set_icon(ship)

	Game_Window=pygame.display.set_mode((winWidth,winHeight))
	Game_Window.fill(color_CYAN)

	bush=pygame.transform.scale((pygame.image.load("bush.png")),(50,50))
	#alphaBush=(pygame.image.load("bush.png")).convert()
	bushes=[]
	i=0
	while i<10:
		bushes.append(bush.copy())
		i+=1

	bkg_texture=pygame.transform.scale((pygame.image.load(bkg_texture_str)),(winWidth,winHeight))
	BkgSprite1 = Background(bkg_texture,0,winHeight*(-1))
	BkgSprite2 = Background(bkg_texture,0,0)
	BkgSprite3 = Background(bkg_texture,0,winHeight)

	all_sprites_list.add(BkgSprite1)
	all_sprites_list.add(BkgSprite2)
	all_sprites_list.add(BkgSprite3)
	while True:
		for event in pygame.event.get():
			if event.type==QUIT:
				pygame.quit()
				exit()
		#bkg1.render(Game_Window)
		all_sprites_list.update()
		Game_Window.fill(color_CYAN)
		#all_sprites_list.draw(Game_Window)
		#Game_Window.blit(BkgSprite1,(BkgSprite1.x,BkgSprite1.y))
		BkgSprite1.draw(Game_Window)
		BkgSprite2.draw(Game_Window)
		BkgSprite3.draw(Game_Window)
		clock.tick(60)
		pygame.display.flip()