import pygame, sys
from settings import *
from player import Player
from car import Car
from random import choice, randint
from sprite import SimpleSprite, LongSprite

class AllSprites(pygame.sprite.Group):

	def __init__(self):
		super().__init__()
		self.offset = pygame.math.Vector2()
		self.bg = pygame.image.load('../graphics/main/map.png').convert()
		self.fg = pygame.image.load('../graphics/main/overlay.png').convert_alpha()

	def customize_draw(self):

		self.offset.x = player.rect.centerx - WINDOW_WIDTH / 2
		self.offset.y = player.rect.centery - WINDOW_HEIGHT / 2

		display_surface.blit(self.bg,-self.offset)

		for sprite in sorted(self.sprites(), key = lambda sprite: sprite.rect.centery):
			offset_pos = sprite.rect.topleft - self.offset
			display_surface.blit(sprite.image, offset_pos)

		display_surface.blit(self.fg,-self.offset)


# basic setup
pygame.init()
display_surface = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
pygame.display.set_caption('Frogger')
clock = pygame.time.Clock()

# groups 
all_sprites = AllSprites()
obstacle_sprites = pygame.sprite.Group()

# sprites 
player = Player((2062,3274),all_sprites,obstacle_sprites)

# car timer
car_timer = pygame.event.custom_type()
pygame.time.set_timer(car_timer,50)
pos_list = []

# font
score_text = 'Du hast es geschaft, super!'
font = pygame.font.Font(None,50)
text_surf = font.render(score_text, True, 'White')
text_rect = text_surf.get_rect(center = (WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2))

# sprite setup
for file_name,pos_list in SIMPLE_OBJECTS.items():
	surf = pygame.image.load(f'../graphics/objects/simple/{file_name}.png').convert_alpha()
	for pos in pos_list:
		SimpleSprite(surf, pos, [all_sprites,obstacle_sprites])

for file_name,pos_list in LONG_OBJECTS.items():
	surf = pygame.image.load(f'../graphics/objects/long/{file_name}.png').convert_alpha()
	for pos in pos_list:
		LongSprite(surf, pos, [all_sprites,obstacle_sprites])

# game loop
while True:
	
# event loop
	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			pygame.quit()
			sys.exit()
		if event.type == car_timer:
			random_pos = choice(CAR_START_POSITIONS)
			if random_pos not in pos_list:
				pos_list.append(random_pos)
				pos = (random_pos[0],random_pos[1] + randint(-8,8))
				Car(pos,[all_sprites,obstacle_sprites])
			if len(pos_list) >5:
				del pos_list[0]

	# delta time 
	dt = clock.tick() / 1000


	if player.pos.y >= 1180:
	# update
		all_sprites.update(dt)

	# draw
		all_sprites.customize_draw()
	else:
		display_surface.fill('teal')
		display_surface.blit(text_surf,text_rect)

	# update the display surface -> drawing the frame 
	pygame.display.update()