## 
## PSPChess
## Copyright (C) 2009,2010 Germano Fabio
## gefasio@gmail.com
## 
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
## 
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
## 
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
##

class Animation(object):
    def __init__(self, src, listImages, timer, x, y):
        '''
            (Screen/Image Instance) src -> Where to blit the images.
            (list) listImages -> Images list to show.
            (int) timer -> Each timer shows an images in listImages.
            (int) x -> X cartesian position.
            (int) y -> Y cartesian position.
        '''
        self.src = src
        self.listImages = listImages
        self.timer = timer
        self.currTimer = 0
        self.currImage = 0 
        self.pos = [x, y]
    def show(self):
        '''
            Shows animation. =)
            This method must be called each time in a cicle.
        '''
        self.src.blit(self.listImages[self.currImage], 0, 0, self.listImages[self.currImage].width,\
                      self.listImages[self.currImage].height, self.pos[0], self.pos[1], True)
        self.currTimer += 1
        if self.currTimer > self.timer:
            self.currTimer = 0
            if self.currImage < len(self.listImages) - 1:
                self.currImage += 1
            else:
                self.currImage = 0
    def reset(self):
        ''' Resets animation. '''
        self.currImage = 0
        self.currTimer = 0