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scripts: maps: Fixed divide-by-zero when packing blocks into small maps

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This can be hit when dealing with very small maps, which is common since
we're rendering to the terminal. Not crashing here at least allows the
header/usage string to be shown.
This commit is contained in:
Christopher Haster
2025-04-11 01:46:00 -05:00
parent cffa9ec67e
commit f0b8d34230
3 changed files with 9 additions and 9 deletions
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scripts/dbgbmap.py
+3 -3
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@@ -4598,11 +4598,11 @@ def main_(ring, disk, mroots=None, *,
# well for things that are often powers-of-two
block_cols_ = 1
block_rows_ = len(bmap)
while (abs(((canvas.width/(block_cols_ * 2))
/ (canvas.height/mt.ceil(block_rows_ / 2)))
while (abs(((canvas.width/(block_cols_*2))
/ max(canvas.height/mt.ceil(block_rows_/2), 1))
- block_ratio)
< abs(((canvas.width/block_cols_)
/ (canvas.height/block_rows_)))
/ max(canvas.height/block_rows_, 1)))
- block_ratio):
block_cols_ *= 2
block_rows_ = mt.ceil(block_rows_ / 2)