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added the routine _makeChunk for internal use

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This commit is contained in:
David Vierra 2010-11-29 21:40:47 -10:00
parent bbb37dbca8
commit c9fe2afff1
1 changed files with 14 additions and 10 deletions
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24
mclevel.py
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@ -2283,22 +2283,26 @@ class MCInfdevOldLevel(MCLevel):
if chunks is None: chunks = self.allChunks; if chunks is None: chunks = self.allChunks;
return [self.getChunk(cx,cz) for (cx,cz) in chunks if self.containsChunk(cx,cz)] return [self.getChunk(cx,cz) for (cx,cz) in chunks if self.containsChunk(cx,cz)]
def _makeChunk(self, cx,cz):
"""return the chunk object at the given position, creating it if necessary.
because loading the chunk is done later, accesses to chunk attributes may
raise ChunkMalformed"""
if not self.containsChunk(cx,cz):
raise ChunkNotPresent, (cx,cz);
if not (cx,cz) in self._loadedChunks:
self._loadedChunks[cx,cz] = InfdevChunk(self, (cx, cz));
return self._loadedChunks[cx,cz]
def getChunk(self, cx, cz): def getChunk(self, cx, cz):
""" read the chunk from disk, load it, and return it. """ read the chunk from disk, load it, and return it.
decompression and unpacking is done lazily.""" decompression and unpacking is done lazily."""
if self._allChunks is not None:
if not (cx,cz) in self._allChunks:
raise ChunkNotPresent, (cx,cz);
if not (cx,cz) in self._loadedChunks: c = self._makeChunk(cx,cz)
self._loadedChunks[cx,cz] = InfdevChunk(self, (cx, cz));
#raise ChunkNotPresent, "Chunk {0} not present".format((cx,cz))
c = self._loadedChunks[cx,cz]
c.load(); c.load();
if not (cx,cz) in self._loadedChunks: if not (cx,cz) in self._loadedChunks:
raise ChunkMalformed, "Chunk {0} malformed".format((cx,cz)) raise ChunkMalformed, "Chunk {0} malformed".format((cx,cz))