and y coordinates.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5882 c06c8d41-db1a-0410-9941-cceddc491573
MM3NZ3ZNJW7FEDPYP55DNQOF3MOJG463VA3MMUSG2IKH4R2IBMJQC
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K2CS6TCX2NDVL2ASEHGP4J4K4IJ6FP3ANNKTSIWVG43HPYSBX6ZQC
4SWAT5KCKQV527NKELAXFQ5XA4Q5HONQXD4VBXMUZNPVPQKPCPNAC
SCXTTP2FDNB2A7F4XXGXSSOEKZQ7ODDGN5YBCTZXGZ22CLCEH3WQC
DZD6YG52TXNI4CJ2FRGFULBH6G5MDLRVQV3X3V35AW533Z3TVBKAC
NTJP7TBK7MKQJO6W5KZUEBEH2ACGNY3GRJJX6X7ZHVSMXAJEEQLAC