import pygame
#import os
#import random

class AnimatedSprite(pygame.sprite.Sprite):
    """
    AnimatedSprite is a custom Sprite class for animated objects

    images: list with sprite images
    frames: list with image# for every frame
    next_frames: list with next frame from current one
    dxs: list with dx for current frame
    dys: list with dy for current frame
    xini: initial x position
    yini: initial y position
    fps: fps
    """

    def __init__(self, images, frames, next_frames, 
                 dxs, dys, xini, yini, fps = 10):
        pygame.sprite.Sprite.__init__(self)
        self._images = images

        self._start = pygame.time.get_ticks()
        self._delay = 1000 / fps
        self._last_update = 0
        self._frame = 0

        self._frames = frames
        self._next_frames = next_frames
        self._dxs = dxs
        self._dys = dys
        self.x = xini
        self.y = yini
        self.move = 0

        self.image = self._images[self._frames[self._frame]]

#        self.update(pygame.time.get_ticks())

    def update(self, t, grid):

#        if t - self._last_update > self._delay:
#            print("Can't reach fps.")
        
        self.do_move(grid)
        self.image = self._images[self._frames[self._frame]]
        self._last_update = t

    def render(self, screen):
        screen.blit(self.image, (self.x, self.y))

    def do_move(self, grid):
        pass

    def update_frame(self, fr):
        self._frame = fr

    def update_move(self,move):
        self.move = move

    def upper_left_tile(self):
        return ( (self.x+34)/50, (self.y+16)/50 )

    def draw_rect(self, screen):
        pygame.draw.rect(screen,(0,0,0),(self.x+15, self.y+38, 38, 38),1)



if __name__ == "__main__":

    print("You can't run this file.")
    print("You have to import AnimatedSprite from another Python file.")