← Back to branch summary

~ubuntu-branches/ubuntu/gutsy/inform/gutsy

« back to all changes in this revision

Viewing changes to html/answers1/answer4.html

  • Committer: Bazaar Package Importer
  • Author(s): Mark Baker
  • Date: 2004-03-29 23:52:44 UTC
  • Revision ID: james.westby@ubuntu.com-20040329235244-fox1z1yv7d6vojoo
Tags: upstream-6.30
Import upstream version 6.30

Show diffs side-by-side

added added

removed removed

Lines of Context:
html/answers1/answer4.html
 
1
<HTML><HEAD><TITLE>Answer to Exercise 4</TITLE></HEAD>
 
2
<BODY BGCOLOR="#FFFFFF">
 
3
<TABLE><TR><TD Valign="top"><IMG SRC="../icons/exercise.gif" ALT="??"><TD bgcolor="#FAA89B"><B>ANSWER TO EXERCISE 4</B><TR><TD><TD>
 
4
<P>
 
5
Put any validation rules desired into the <TT>GamePreRoutine</TT>.
 
6
For example, the following will filter out any stray <TT>Drop</TT> actions for
 
7
unheld objects:
 
8
 
 
9
<PRE>
 
10
[ GamePreRoutine;
 
11
  if (action==Drop &#38;&#38; noun notin player)
 
12
      "You aren't holding ", (the) noun, ".";
 
13
  rfalse;
 
14
];
 
15
</PRE>
 
16
 
 
17
</TABLE>
 
18
<HR>Back to <A HREF="../section9.html#ex4">the exercise in section 9</A><HR>
 
19
<SMALL><I>Mechanically translated to HTML from third edition as revised 16 May 1997. Copyright &#169; Graham Nelson 1993, 1994, 1995, 1996, 1997: all rights reserved.</I></SMALL></BODY></HTML>