#Jag importerar alla kommandon som ryms inom Pygame, samt vissa systemkommandon.
import pygame, sys, os
from pygame.locals import *

#Här importerar jag alla bilder på Pacman och spöken.
#Pacmanbilderna ordnades även in i en lista, pacList, för att skapa en ordning bland dem.
pac1 = pygame.image.load('Pacman1.png')
pac2 = pygame.image.load('Pacman2.png')
pac3 = pygame.image.load('Pacman3.png')
pac4 = pygame.image.load('Pacman4.png')
wall = pygame.image.load('Wall.png')
pacList = [pac1, pac2, pac3, pac4, pac3, pac2]
ghost1 = pygame.image.load('ghost1.png')
ghost2 = pygame.image.load('ghost2.png')
ghost3 = pygame.image.load('ghost3.png')
ghost4 = pygame.image.load('ghost4.png')

#Antalet rutor i x- och y-led, spelplanen höjd och bredd samt bakgrundsfärgen i RGB-skala definieras.
#Jag initierar också den inbyggda spelklockan.
xCords, yCords = 20, 20
size =width, height = 800, 800
bgc = (0, 0, 0)
clock = pygame.time.Clock()

#Spelplanen skapas och fylls ut med färgen. Planen namnges som "Pacman"
screen = pygame.display.set_mode((width, height))
screen.fill(bgc)
pygame.display.set_caption("Pacman")

class Pacman(object):
    def __init__(self, speed=5, x=400, y=400, sprite=pacList):
        self.speed = speed
        self.x = x
        self.y = y
        self.pos = (self.x,self.y)
        self.spriteNum = 0
        self.sprite = sprite
    
    def move(self, direction):
        if direction == "up":
            self.y -= self.speed
        if direction == "down":
            self.y += self.speed
        if direction == "right":
            self.x += self.speed
        if direction == "left":
            self.x -= self.speed
        return (self.x, self.y)

    def spriteChange(self):
        if self.spriteNum == 5:
            self.spriteNum = 0
        else:
            self.spriteNum += 1
        if direction == "down":
            return self.rot_center(90)
        return self.sprite[self.spriteNum]

    def rot_center(self, angle):
        orig_rect = (self.sprite[self.spriteNum]).get_rect()
        rot_image = pygame.transform.rotate(self.sprite[self.spriteNum], angle)
        rot_rect = orig_rect.copy()
        rot_rect.center = rot_image.get_rect().center
        rot_image = rot_image.subsurface(rot_rect).copy()
        return rot_image

    
pacman = Pacman()
direction = 0
done = False
while not done:
    clock.tick(20)
    screen.fill((0, 0, 0))
    for event in pygame.event.get():
        if event.type == KEYDOWN and event.key == K_w:
            direction = "up"
        elif event.type == KEYDOWN and event.key == K_s:
            direction = "down"
        elif event.type == KEYDOWN and event.key == K_d:
            direction = "right"
        elif event.type == KEYDOWN and event.key == K_a:
            direction = "left"
        if event.type == pygame.QUIT:
            done = True
    screen.blit(pacman.spriteChange(), pacman.move(direction))
    pygame.display.flip()
pygame.quit()