Mercurial > fife-parpg

annotate engine/extensions/serializers/xmlanimation.py @ 150:6e7d228def30

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Lazy loading for animations. Uses a Resource-Pointer class that behaves like a pointer to an IResource, but only loads the resource on demand. There's a slight change of API, which is already adapted to in the XML loaders. If you use Animation.addFrame directly, either adapt to the change or wait a few hours for a backwards compatibility solution.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 11 Oct 2008 12:03:59 +0000
parents 3fddb45c0304
children afcd83f7fac8
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 import fife
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 from serializers import *
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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3
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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4 class XMLAnimationLoader(fife.ResourceLoader):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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5 def __init__(self, imagepool, vfs):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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6 fife.ResourceLoader.__init__(self)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 self.imagepool = imagepool
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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8 self.vfs = vfs
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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9 self.thisown = 0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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10 self.filename = ''
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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11 self.node = None
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9a1529f9625e * Indentation patch by GreyGhost
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0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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13 def loadResource(self, location):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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14 self.filename = location.getFilename()
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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15 return self.do_load_resource()
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16
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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17 def do_load_resource(self):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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18 f = self.vfs.open(self.filename)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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19 f.thisown = 1
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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20 tree = ET.parse(f)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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21 self.node = tree.getroot()
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9a1529f9625e * Indentation patch by GreyGhost
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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23 animation = fife.Animation()
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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24 common_frame_delay = int(self.node.get('delay', 0))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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25 x_offset = int(self.node.get('x_offset', 0))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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26 y_offset = int(self.node.get('y_offset', 0))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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27 animation.setActionFrame(int(self.node.get('action', 0)))
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0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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29 frames = self.node.findall('frame')
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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30 if not frames:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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31 raise InvalidFormat('animation without <frame>s')
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32
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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33 for frame in frames:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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34 source = frame.get('source')
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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35 if not source:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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36 raise InvalidFormat('animation without <frame>s')
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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37
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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38 frame_x_offset = int(frame.get('x_offset', x_offset))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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39 frame_y_offset = int(frame.get('y_offset', y_offset))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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40 frame_delay = int(frame.get('delay', common_frame_delay))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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41
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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42 # xml paths are relative to the directory of the file they're used in.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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43 path = self.filename.split('/')
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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44 path.pop()
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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45 path.append(str(source))
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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46
150
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 140
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47 image_location = fife.ImageLocation('/'.join(path))
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 140
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48 image_location.setXShift(frame_x_offset)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 140
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49 image_location.setYShift(frame_y_offset)
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 140
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50
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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51 image_index = self.imagepool.addResourceFromLocation(image_location)
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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52 animation.addFrame(fife.ResourcePtr(self.imagepool,image_index), frame_delay)
6e7d228def30 Lazy loading for animations.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 140
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53 #print "...",image_index,image_location.getFilename()
0
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54
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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55 animation.thisown = 0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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56 return animation
140
3fddb45c0304 edited the loaders, images are now loaded only once into memory
thebastion@33b003aa-7bff-0310-803a-e67f0ece8222
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57