Beogh altars can now be found in the Abyss.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1628 c06c8d41-db1a-0410-9941-cceddc491573
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x1 = 10 + random2(GXM - 20);
y1 = 10 + random2(GYM - 20);
x2 = x1 + 1 + random2(10);
y2 = y1 + 1 + random2(10);
const int x1 = 10 + random2(GXM - 20);
const int y1 = 10 + random2(GYM - 20);
const int x2 = x1 + 1 + random2(10);
const int y2 = y1 + 1 + random2(10);