map loader for 'tiled' - 2.2

thanks, fixed in trunk (see issue 8)

The function def load_image_part in the ImageLoaderPyGame(IImageLoader) should be as follows to fix the issue with the transparency key(colorkey) not working correctly:

def load_image_part(self, filename, x, y, w, h, colorkey=None):
source_img = self.load_image(filename, colorkey)
## ISSUE 4:
## The following usage seems to be broken in pygame (1.9.1.):
## img_part = self.pygame.Surface((tile_width, tile_height), 0, source_img)
img_part = self.pygame.Surface((w, h), source_img.get_flags(), source_img.get_bitsize())
source_rect = self.pygame.Rect(x, y, w, h)

#Set the colorkey BEFORE we blit the source_img
if colorkey:
img_part.set_colorkey(colorkey, self.pygame.RLEACCEL)
img_part.fill(colorkey)

img_part.blit(source_img, (0, 0), source_rect)

return img_part

@ep8kha very thanks, your hints were really useful and correct.

version 2.2 is out, check it out!

@mayec I believe you need to change what type of data the Tile Layer is stored as. If you go to Edit->Preference in Tiled, there's a drop down menu titled "Store tile layer data as." If the selection is anything other than "Base64(uncompressed)" or "Base64(gzip compressed)", an error will be flagged. For the particular error you've posted, "XML" seems to be the selection for your tmx file.

@DR0ID It seems that the following lines of code in the decode method in the TileLayer Class is not throwing an exception for tmx files where the tile layered is stored as XML:

s = self.encoded_content
if self.encoded_content:
if self.encoding:
if self.encoding == u'base64':
s = decode_base64(s)
else:
raise Exception(u'unknown data encoding %s' % (self.encoding))
if self.compression:
if self.compression == u'gzip':
s = decompress_gzip(s)
else:
raise Exception(u'unknown data compression %s' %(self.compression))
else:
raise Exception(u'no encoded content to decode')

It seems that "self.encoded_content" has a value for those files, so it passes through "if self.encoded_content" line. However, it never goes into the two nested if statements thereafter, even though it's an unsupported file. Hope this helps!

Hello Rohin Knight
I have tried what you suggested, but it did not work. If you have still an problem, could you provide me an example so I can test it?
Thanks for reporting back. From now on you can report issues on the project homepage on https://code.google.com/p/pytmxloader/

This is a really awesome lib and has saved me a lot of time.

I thought I might just point out one bug I found:
On lines 151 and 152, replace these two lines:


for y in xrange(margin, h, tile_height + spacing):
for x in xrange(margin, w, tile_width + spacing):


...with these two lines...


for y in xrange(margin, h - tile_height, tile_height + spacing):
for x in xrange(margin, w - tile_width, tile_width + spacing):

Sorry for the long delay!
@ mayec: I would need to get such a tmx file to test against it and debug it. I'm often on the #pygame chat (see: http://pygame.org/wiki/info#IRC )

Sorry for the long delay!

@ hobo: there is a demo integrated into the file, see (for pygame):
http://code.google.com/p/python-pyknic/source/browse/trunk/pyknic_old/pyknic/resources/tiledtmxloader.py#858

or for pyglet:

http://code.google.com/p/python-pyknic/source/browse/trunk/pyknic_old/pyknic/resources/tiledtmxloader.py#957

are there any SIMPLE code examples that would show how to implement this?
Ive looked through the documentation and the code a few times but from the view of a novice programmer, its all very confusing. I would love to be
able to use this but I just dont know how..

There you can find the lastest version of maybe that helps you.
IÂŽm not the code of this.

http://code.google.com/p/python-pyknic/source/browse/#svn/trunk/pyknic_old/pyknic/resources

Some tmx files open fine, but when trying to decode certain .tmx files, I get the following error:

__main__ loading ...
Traceback (most recent call last):
File "tiledtmxloader.py", line 1011, in <module>
main()
File "tiledtmxloader.py", line 1001, in main
demo_pygame(args[0])
File "tiledtmxloader.py", line 839, in demo_pygame
world_map = TileMapParser().parse_decode(file_name)
File "tiledtmxloader.py", line 822, in parse_decode
world_map.decode()
File "tiledtmxloader.py", line 402, in decode
layer.decode()
File "tiledtmxloader.py", line 577, in decode
(ord(str(s[idx + 2])) << 16) | (ord(str(s[idx + 3])) << 24)
IndexError: string index out of range

Great lib!
I just converted my game to use this lib and it was actually quite simple thanks to the good quality and documentation.
http://code.google.com/p/turb-game/

Just what I needed so I could skip to doing the fun stuff in my game!

I know I already said this, but this is really a wonderful little library. Thanks again.

Awasome :)
Thanks a lot for sharing

Nice work :)

Awesome!
Thanks for sharing this.