AstralTransRocketries/pymclevel
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Change data type of computed heightmap arrays to signed integer to avoid unsigned overflow.

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Code that works with heightmaps such as filters/smooth.py will subtract two heights expecting to get a negative integer. Getting a very large positive one usually causes an error, so make sure signed int arithmetic gets used.
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David Vierra 2012-10-17 12:19:01 -10:00
parent 14967d46da
commit fde247b651
1 changed files with 1 additions and 1 deletions
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level.py
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@ -50,7 +50,7 @@ def extractHeights(array):
# from each column. # from each column.
w, h = array.shape[:2] w, h = array.shape[:2]
heightMap = zeros((w, h), 'uint16') heightMap = zeros((w, h), 'int16')
heights = argmax((array > 0)[..., ::-1], 2) heights = argmax((array > 0)[..., ::-1], 2)
heights = array.shape[2] - heights heights = array.shape[2] - heights