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Anim.py
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Anim.py
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# This file is part of FoodPuter.
# Foobar 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 3 of the License, or
# (at your option) any later version.
# Foobar 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
import pygame, math
import putil
def cols(tup):
return tup[0]
def rows(tup):
return tup[1]
class Anim(object):
def __init__(self, imgname, layout = (1,1), animrate = 1, pos = (200, 200)):
pygame.init()
try:
img = pygame.image.load("./img/{}".format(imgname))
except pygame.error:
putil.trace("Could not open ./img/{}".format(imgname))
self.img = img #img.convert() #maybe convert alpha, but to make sure the color format matches screen etc
w = img.get_width()
h = img.get_height()
fw = w / cols(layout)
fh = h / rows(layout)
frames = []
for row in range(rows(layout)):
for col in range(cols(layout)):
r = pygame.Rect((col*fw, row*fh), (fw, fh))
frames.append(self.img.subsurface(r))
self.frames = frames
self.cur_frame = 0
self.walltime = 0
self.animrate = animrate
self.pos = pos
def update(self, dt):
self.walltime += dt * .001;
if self.walltime > self.animrate:
self.walltime -= self.animrate
self.cur_frame += 1
self.cur_frame %= len(self.frames)
def draw(self, surface):
surface.blit(self.frames[self.cur_frame], self.pos)