Massive change from using x and y to using coord_defs(). Not quite tested,

most likely broken in some places and might break tiles. Will fix in the near future.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6636 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on July 22, 2008
TGJZXTUIAKCFZQJ54ZQEBGFBVZSJCAX6AWDRSH3TP7UJRLGUM5SAC
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