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docs/landscape_grid.html
author bjarni
Wed, 27 Sep 2006 13:53:59 +0000
changeset 4650 52adab371ed7
parent 4593 d15fd72b57d6
child 5385 3868f2e6db9b
permissions -rw-r--r--
(svn r6526) -Codechange: [depot window] the train only widgets are now resized depending on the size of other widgets
This will ensure that say the horizontal scrollbar is as wide as the matrix even if only the matrix is altered in size
This is meant to make it easier to add more widgets without coding a lot of vehicle type specific stuff (you should still check all windows though) 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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  <meta content="text/html; charset=UTF-8" http-equiv="content-type">
  <meta name="Description" content="Structure of OpenTTD (OTTD) landscape arrays #2">
  <title>OpenTTD Landscape Internals - #2</title>
  <style type="text/css">
    span.abuse { font-family: "Courier New", Courier, mono; background-color: rgb(255, 58, 31); }
    span.free  { font-family: "Courier New", Courier, mono; background-color: rgb(30, 178, 54); }
    span.used  { font-family: "Courier New", Courier, mono; }
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<h3 style="font-weight: bold;">Landscape</h3>
<span style="font-weight: bold;"></span>Five attributes hold the information about a tile.
This can be seen in the <a href="landscape.html">Landscape</a> document. This page tries to give an overview of used and free bits of
the array so you can quickly see what is used and what is not.
<ul>
  <li><span style="font-weight: bold;"><span class="free">O</span></span> - bit is free</li>
  <li><span style="font-weight: bold;"><span class="used">X</span></span> - bit is used</li>
  <li><span style="font-weight: bold;"><span class="abuse">&nbsp;</span></span> - bit of attribute is abused for different purposes</li>
</ul>
<p>
<ul>
  <li><span style="font-weight: bold;">type_height</span> - 8 bits in size, stores tile height (lower 4 bits) and tile class (upper 4 bits)</li>
  <li><span style="font-weight: bold;">m1</span> - 8 bits in size, used to identify the owner of that tile (eg piece of rail, bridge, etc.)</li>
  <li><span style="font-weight: bold;">m2</span> - 16 bits in size, used to identify the index of the given tile (object) in the (object-)array</li>
  <li><span style="font-weight: bold;">m3</span> - 8 bits in size, is used for general storage</li>
  <li><span style="font-weight: bold;">m4</span> - 8 bits in size, is used for general storage</li>
  <li><span style="font-weight: bold;">m5</span> - 8 bits in size, is used for general storage</li>
</ul>

<table align=center border="1" cellpadding="2" cellspacing="2">
  <tbody>
    <tr>
      <th colspan=2>class</th>
      <th>m1 (8)</th>
      <th>m2 (16)</th>
      <th>m3 (8)</th>
      <th>m4 (8)</th>
      <th>type_height (8)</th>
      <th>m5 (8)</th>
    </tr>
    <tr>
      <td colspan=2 class="caption">bits</td>
      <td class="bits">7654 3210</td>
      <td class="bits">FEDC BA98 7654 3210</td>
      <td class="bits">7654 3210</td>
      <td class="bits">7654 3210</td>
      <td class="bits">7654 3210</td>
      <td class="bits">7654 3210</td>
    </tr>
    <tr>
      <td rowspan="2">0</td>
      <td class="caption">ground</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">XXXX XX<span class="free">OO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td class="caption">farmland</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits"><span class="free">OOO</span>X XXXX</td>
    </tr>
    <tr>
      <td rowspan=3>1</td>
      <td class="caption">rail</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO O</span>XXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td class="caption">depot</td>
      <td class="bits">-inherit-</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
    </tr>
    <tr>
      <td class="caption">waypoint</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
    </tr>
    <tr>
      <td rowspan=3>2</td>
      <td class="caption">road</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td class="caption">level crossing</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XX<span class="free">OO</span></td>
    </tr>
    <tr>
      <td class="caption">road depot</td>
      <td class="bits">-inherit-</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">X<span class="free">OOO OOOO</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td>3</td>
      <td class="caption">town</td>
      <td class="bits"><span class="abuse">XXXX XXXX</span></td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits">XX<span class="free">OO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">X<span class="free">O</span>XX XXXX</td>
    </tr>
    <tr>
      <td>4</td>
      <td class="caption">trees</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XX<span class="free">OO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
    </tr>
    <tr>
      <td>5</td>
      <td class="caption">station</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td>6</td>
      <td class="caption">water</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td rowspan=6>8</td>
      <td class="caption">industry</td>
      <td class="bits"><span class="abuse">X</span><span class="free">OO</span><span class="abuse">X XXXX</span></td>
      <td class="bits">XXXX XXXX XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td>bubble/sugar/toffee</td>
      <td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
    </tr>
    <tr>
      <td>toy factory</td>
      <td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
    </tr>
    <tr>
      <td>gold/copper/coal</td>
      <td class="bits"><span class="abuse">XX</span><span class="free">OO OO</span><span class="abuse">XX</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
    </tr>
    <tr>
      <td>oil wells</td>
      <td class="bits"><span class="abuse">X</span><span class="free">OOO OO</span><span class="abuse">XX</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
    </tr>
    <tr>
      <td>power station</td>
      <td class="bits"><span class="abuse">X</span><span class="free">O</span><span class="abuse">XX XX</span><span class="free">OO</span></td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
      <td class="bits">-inherit-</td>
    </tr>
    <tr>
      <td rowspan=3>9</td>
      <td class="caption">tunnel</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits">X<span class="free">OOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">X<span class="free">OOO</span> XXXX</td>
    </tr>
    <tr>
      <td>bridge ramp</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span> <span class="abuse">XXXX</span> <span class="free">OOOO</span></td>
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
      <td class="bits">X<span class="free">OOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXX<span class="free">O O</span>XXX</td>
    </tr>
    <tr>
      <td>bridge middle part</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO</span> <span class="abuse">XXXX XXXX</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">X<span class="free">OOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
    <tr>
      <td>A</td>
      <td class="caption">various (HQ)</td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits"><span class="free">OOOO OOOO</span></td>
      <td class="bits">XXXX XXXX</td>
      <td class="bits">XXXX XXXX</td>
    </tr>
  </tbody>
</table>

</body>
</html>
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