LogalDeveloper/Minecraft-Overviewer
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implemented stochhastic check with chunk scanning

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Also changed uniform(0,1) to random()
This commit is contained in:
Andrew Brown
2011-11-13 09:31:09 -05:00
parent 866b499142
commit 04a2f05d1c
1 changed files with 12 additions and 1 deletions
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13
overviewer_core/quadtree.py
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@@ -439,7 +439,7 @@ class QuadtreeGen(object):
break
# stochastic render check
if not needs_rerender and self.rerender_probability > 0.0 and random.uniform(0, 1) < self.rerender_probability:
if not needs_rerender and self.rerender_probability > 0.0 and random.random() < self.rerender_probability:
needs_rerender = True
# if after all that, we don't need a rerender, return
@@ -538,6 +538,17 @@ class QuadtreeGen(object):
dirty.set_dirty(tile.path)
continue
# Stochastic check. Since we're scanning by chunks and not
# by tiles, and the tiles get checked multiple times for
# each chunk, this is only an approximation. The given
# probability is for a particular tile that needs
# rendering, but since a tile gets touched up to 32 times
# (once for each chunk in it), divide the probability by
# 32.
if self.rerender_probability and self.rerender_probability/32 > random.random():
dirty.set_dirty(tile.path)
continue
# Check if this tile has already been marked dirty. If so,
# no need to do any of the below.
if dirty.query_path(tile.path):