import pygame
from pygame.locals import *

pygame.init()

clock = pygame.time.Clock()
fps = 60

screen_width = 1000
screen_height = 1000

screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption('Platformer')

#define game variables
tile_size = 50


#load images
sun_img = pygame.image.load('img/sun.png')
bg_img = pygame.image.load('img/sky.png')


class Player():
	def __init__(self, x, y):
		self.images_right = []
		self.images_left = []
		self.index = 0
		self.counter = 0
		for num in range(1, 5):
			img_right = pygame.image.load(f'img/guy{num}.png')
			img_right = pygame.transform.scale(img_right, (40, 80))
			img_left = pygame.transform.flip(img_right, True, False)
			self.images_right.append(img_right)
			self.images_left.append(img_left)
		self.image = self.images_right[self.index]
		self.rect = self.image.get_rect()
		self.rect.x = x
		self.rect.y = y
		self.vel_y = 0
		self.jumped = False
		self.direction = 0

	def update(self):
		dx = 0
		dy = 0
		walk_cooldown = 5

		#get keypresses
		key = pygame.key.get_pressed()
		if key[pygame.K_SPACE] and self.jumped == False:
			self.vel_y = -15
			self.jumped = True
		if key[pygame.K_SPACE] == False:
			self.jumped = False
		if key[pygame.K_LEFT]:
			dx -= 5
			self.counter += 1
			self.direction = -1
		if key[pygame.K_RIGHT]:
			dx += 5
			self.counter += 1
			self.direction = 1
		if key[pygame.K_LEFT] == False and key[pygame.K_RIGHT] == False:
			self.counter = 0
			self.index = 0
			if self.direction == 1:
				self.image = self.images_right[self.index]
			if self.direction == -1:
				self.image = self.images_left[self.index]


		#handle animation
		if self.counter > walk_cooldown:
			self.counter = 0	
			self.index += 1
			if self.index >= len(self.images_right):
				self.index = 0
			if self.direction == 1:
				self.image = self.images_right[self.index]
			if self.direction == -1:
				self.image = self.images_left[self.index]


		#add gravity
		self.vel_y += 1
		if self.vel_y > 10:
			self.vel_y = 10
		dy += self.vel_y

		#check for collision

		#update player coordinates
		self.rect.x += dx
		self.rect.y += dy

		if self.rect.bottom > screen_height:
			self.rect.bottom = screen_height
			dy = 0

		#draw player onto screen
		screen.blit(self.image, self.rect)




class World():
	def __init__(self, data):
		self.tile_list = []

		#load images
		dirt_img = pygame.image.load('img/dirt.png')
		grass_img = pygame.image.load('img/grass.png')

		row_count = 0
		for row in data:
			col_count = 0
			for tile in row:
				if tile == 1:
					img = pygame.transform.scale(dirt_img, (tile_size, tile_size))
					img_rect = img.get_rect()
					img_rect.x = col_count * tile_size
					img_rect.y = row_count * tile_size
					tile = (img, img_rect)
					self.tile_list.append(tile)
				if tile == 2:
					img = pygame.transform.scale(grass_img, (tile_size, tile_size))
					img_rect = img.get_rect()
					img_rect.x = col_count * tile_size
					img_rect.y = row_count * tile_size
					tile = (img, img_rect)
					self.tile_list.append(tile)
				col_count += 1
			row_count += 1

	def draw(self):
		for tile in self.tile_list:
			screen.blit(tile[0], tile[1])



world_data = [
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 1], 
[1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 2, 2, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 7, 0, 5, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 1], 
[1, 7, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 7, 0, 0, 0, 0, 1], 
[1, 0, 2, 0, 0, 7, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 0, 0, 2, 0, 0, 4, 0, 0, 0, 0, 3, 0, 0, 3, 0, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 7, 0, 0, 0, 0, 2, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], 
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 2, 2, 2, 2, 2, 1], 
[1, 0, 0, 0, 0, 0, 2, 2, 2, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1], 
[1, 0, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 
[1, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 
[1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
]



player = Player(100, screen_height - 130)
world = World(world_data)

run = True
while run:

	clock.tick(fps)

	screen.blit(bg_img, (0, 0))
	screen.blit(sun_img, (100, 100))

	world.draw()

	player.update()

	for event in pygame.event.get():
		if event.type == pygame.QUIT:
			run = False

	pygame.display.update()

pygame.quit()