SPFLAG_NOT_SELF flag.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6492 c06c8d41-db1a-0410-9941-cceddc491573
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&& (Options.allow_self_target == CONFIRM_CANCEL
|| (Options.allow_self_target == CONFIRM_PROMPT
&& !yesno("Really target yourself?", false, 'n'))))
&& (cancel_at_self
|| Options.allow_self_target == CONFIRM_CANCEL
|| Options.allow_self_target == CONFIRM_PROMPT
&& !yesno("Really target yourself?", false, 'n')))