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utils.py
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utils.py
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if __name__ =="__main__":
import testing
import pygame
import g
import os
class Sprite():
def __init__(self, path, size, side,empty_tiles=0):
self.empty_tiles = empty_tiles
self.side = side
if side == "right":
self.image = pygame.transform.flip(pygame.image.load(path).convert_alpha(),1,0)
else:
self.image = pygame.image.load(path).convert_alpha()
self.image_size = self.image.get_size()
self.cols = self.image_size[0]/size[0]
self.rows = self.image_size[1]/size[0]
self.size = size
assert self.image_size[0]%self.cols == 0
self.reset_step()
print self.cols, self.rows, self.empty_tiles
self.total_steps = (self.cols*self.rows)-self.empty_tiles
self.step_no = 0
def reset_step(self):
if self.side =='right':
self.step = [self.image_size[0]-self.size[0], self.image_size[1]-self.size[1]]
else:
self.step = [0,0]
def on_loop(self):
"""Return true if the animation reaches it's end."""
done_animation = False
if g.milliseconds == 0:
done_animation = self.next_step()
if done_animation:
return True
def next_step(self):
end = False
row_end = False
last_row = False
self.step_no+=1
if self.step[1] == self.image_size[1]-self.size[1]:
last_row = True
if self.side == 'right' :
if self.step[0] == 0 \
or (self.empty_tiles and last_row and self.step[0]==self.empty_tiles*self.size[0]):
self.step[0] = self.image_size[0]-self.size[0]
row_end = True
else:
self.step[0] -= self.size[0]
elif self.side == 'left':
if self.step[0] == self.image_size[0]-self.size[0]:
self.step[0] = 0
row_end = True
else:
self.step[0] += self.size[0]
if row_end:
if self.step[1] < self.image_size[1]-self.size[1]:
self.step[1] += self.size[1]
else:
self.step[1] = 0
if last_row:
self.step_no=0
#self.step[1] = 0
end = True
return end
if __name__ =="__main__":
import testing
import pygame
import g
surface = pygame.display.set_mode((800,600))
testando = Sprite(
os.path.join(g.dir_images, 'robots','rodent','two','natural','enter.png'),
(285,350),
'right',
)
while True:
surface.fill((0,0,0,0))
surface.blit(testando.image, (0,0),(testando.step, testando.size))
pygame.display.flip()
testing.clock.tick(40)
if testando.on_loop():
print "fim"