import pygame


class Player:
    """
    Creates new instance of player or NPC.

    :param surface: Surface to draw player onto
    :param x: Horizontal position of player
    :return: Returns nothing
    """

    def __init__(self, surface: pygame.surface, x):
        self._surface = surface
        self._image = pygame.image.load('PaddleA.png').convert_alpha()
        self._rect = self._image.get_rect()
        self.x = x
        self.y = round(((self._surface.get_height() / 2) - self._rect.height / 2) / 10, 0) * 10
        self.vec = 5
        self.player = None
        self.dist_bot = 0
        self.dist_top = 0

    def use_alternate_sprite(self):
        """ Changes out default sprite for alternate colorized version. """
        self._image = pygame.image.load('PaddleB.png').convert_alpha()

    def reverse_player(self):
        """ Rotates player sprite 180°. """

        self._image = pygame.transform.rotate(self._image, 180)

    def draw(self):
        """ Draw player to screen and update positions relative to screen area. """

        # self.player = pygame.draw.circle(self._surface,
        #                                  Colors.White,
        #                                  (self.x, self.y),
        #                                  25)

        self.player = self._surface.blit(self._image, (self.x, self.y))
        # Calculate player position relative to screen area
        self.dist_bot = (self._surface.get_height() - self._rect.y - self.y) - self._rect.height
        self.dist_top = 0 + self._rect.y + self.y

    def control(self):
        """ Handover physical controls to player. """

        keys = pygame.key.get_pressed()
        # print(f"{self.dist_top} {self.dist_bot}")
        if keys[pygame.K_w] and self.dist_top > 0:
            self.y -= self.vec
        if keys[pygame.K_s] and self.dist_bot > 0:
            self.y += self.vec