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authorFranklin Wei <git@fwei.tk>2017-04-29 18:21:56 -0400
committerFranklin Wei <git@fwei.tk>2017-04-29 18:24:42 -0400
commit881746789a489fad85aae8317555f73dbe261556 (patch)
treecec2946362c4698c8db3c10f3242ef546c2c22dd /apps/plugins/puzzles/src/tracks.html
parent03dd4b92be7dcd5c8ab06da3810887060e06abd5 (diff)
downloadrockbox-881746789a489fad85aae8317555f73dbe261556.tar.gz
rockbox-881746789a489fad85aae8317555f73dbe261556.zip
puzzles: refactor and resync with upstream
This brings puzzles up-to-date with upstream revision 2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made by me, including cursor-only Untangle and some compilation fixes remain. Upstream code has been moved to its separate subdirectory and future syncs can be done by simply copying over the new sources. Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804
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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
2"http://www.w3.org/TR/html4/strict.dtd">
3<html>
4<head>
5<meta http-equiv="content-type" content="text/html; charset=US-ASCII">
6<title>Tracks</title>
7<link rel="previous" href="flood.html">
8<link rel="ToC" href="index.html">
9<link rel="up" href="index.html">
10<link rel="index" href="docindex.html">
11<link rel="next" href="palisade.html">
12</head>
13<body>
14<p><a href="flood.html">Previous</a> | <a href="index.html">Contents</a> | <a href="docindex.html">Index</a> | <a href="palisade.html">Next</a></p>
15<h1><a name="C40"></a>Chapter 40: <a name="i0"></a>Tracks</h1>
16<p>
17You are given a grid of squares, some of which are filled with train tracks. You need to complete the track from A to B so that the rows and columns contain the same number of track segments as are indicated in the clues to the top and right of the grid.
18</p>
19<p>
20There are only straight and 90 degree curved rails, and the track may not cross itself.
21</p>
22<p>
23Tracks was contributed to this collection by James Harvey.
24</p>
25<h2><a name="S40.1"></a>40.1 <a name="i1"></a>Tracks controls</h2>
26<p>
27Left-clicking on an edge between two squares adds a track segment between the two squares. Right-clicking on an edge adds a cross on the edge, indicating no track is possible there.
28</p>
29<p>
30Left-clicking in a square adds a colour indicator showing that you know the square must contain a track, even if you don't know which edges it crosses yet. Right-clicking in a square adds a cross indicating it contains no track segment.
31</p>
32<p>
33Left- or right-dragging between squares allows you to lay a straight line of is-track or is-not-track indicators, useful for filling in rows or columns to match the clue.
34</p>
35<p>
36(All the actions described in <a href="common.html#S2.1">section 2.1</a> are also available.)
37</p>
38<h2><a name="S40.2"></a>40.2 <a name="i2"></a>Tracks parameters</h2>
39<p>
40These parameters are available from the &#8216;Custom...&#8217; option on the &#8216;Type&#8217; menu.
41</p>
42<dl><dt>
43<em>Width</em>, <em>Height</em>
44</dt>
45<dd>
46Size of the grid, in squares.
47</dd>
48<dt>
49<em>Difficulty</em>
50</dt>
51<dd>
52Controls the difficulty of the generated puzzle: at Tricky level, you are required to make more deductions regarding disregarding moves that would lead to impossible crossings later.
53</dd>
54<dt>
55<em>Disallow consecutive 1 clues</em>
56</dt>
57<dd>
58Controls whether the Tracks game generation permits two adjacent rows or columns to have a 1 clue, or permits the row or column of the track's endpoint to have a 1 clue. By default this is not permitted, to avoid long straight boring segments of track and make the games more twiddly and interesting. If you want to restore the possibility, turn this option off.
59</dd>
60</dl>
61
62<hr><address></address></body>
63</html>