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docs/landscape_grid.html
author tron
Mon, 15 Jan 2007 07:38:36 +0000
changeset 5933 0835f3342b79
parent 5847 9ce114e1d90d
child 6268 4b5241e5dd10
permissions -rw-r--r--
(svn r8143) Remove the landscaping button from the build toolbars.
The landscaping toolbar can be reached at least as easy directly from the main toolbar.
Further two of the four toolbars uses 'l' as keyboard shortcut for this button, which plain does not work (The letter has to be uppercase).
This was covered by the fact there is a global shortcut 'L' to open the landscaping toolbar, so the individual checks in the four build toolbars were redundant anyway. 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <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; }
    td.bits    { white-space: nowrap; text-align: center; font-family: "Courier New", Courier, mono; }
    td.caption { white-space: nowrap; text-align: left; }
    td li      { white-space: nowrap; text-align: left; }
    th         { white-space: nowrap; text-align: center; }
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<body style="direction: ltr;">
<h3 style="font-weight: bold;">Landscape</h3>
<span style="font-weight: bold;"></span>Six 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>
  <li><span style="font-weight: bold;">m6</span> - 8 bits in size, special meaning : lower 2 bits only valid in tropic climate, upper 2 bits for bridges</li>
</ul>

<table align=center border="1" cellpadding="2" cellspacing="2">
  <tbody>
    <tr>
      <th colspan=2>class</th>
      <th>type_height (8)</th>
      <th>m1 (8)</th>
      <th>m2 (16)</th>
      <th>m3 (8)</th>
      <th>m4 (8)</th>
      <th>m5 (8)</th>
      <th>m6 (8)</th>
    </tr>
    <tr>
      <td colspan=2 class="caption">bits</td>
      <td class="bits">7654 3210</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">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">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td class="caption">farmland</td>
      <td class="bits">-inherit-</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"><span class="free">OOO</span>X XXXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td rowspan=3>1</td>
      <td class="caption">rail</td>
      <td class="bits">XXXX XXXX</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">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td class="caption">depot</td>
      <td class="bits">-inherit-</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">XX<span class="free">OO O</span>XXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td class="caption">waypoint</td>
      <td class="bits">-inherit-</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">XX<span class="free">OO O</span>XXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td rowspan=3>2</td>
      <td class="caption">road</td>
      <td class="bits">XXXX XXXX</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">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td class="caption">level crossing</td>
      <td class="bits">-inherit-</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">XXXX XX<span class="free">OO</span></td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td class="caption">road depot</td>
      <td class="bits">-inherit-</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">XXXX XXXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td>3</td>
      <td class="caption">town</td>
      <td class="bits">XXXX XXXX</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">X<span class="free">O</span>XX XXXX</td>
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
    </tr>
    <tr>
      <td>4</td>
      <td class="caption">trees</td>
      <td class="bits">XXXX XXXX</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">XX<span class="free">OO O</span>XXX</td>
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
    </tr>
    <tr>
      <td>5</td>
      <td class="caption">station</td>
      <td class="bits">XXXX XXXX</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"><span class="free">OOOO OO</span>XX</td>
    </tr>
    <tr>
      <td>6</td>
      <td class="caption">water</td>
      <td class="bits">XXXX XXXX</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"><span class="free">OOOO OO</span>XX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td rowspan=3>8</td>
      <td class="caption">industry</td>
      <td class="bits">XXXX XXXX</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"><span class="free">OOOO OO</span>XX</td>
    </tr>
    <tr>
      <td>bubble/sugar/toffee,<BR>gold/copper/coal,<BR>oil wells, power station</td>
      <td class="bits">-inherit-</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">-inherit-</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 rowspan=2>9</td>
      <td class="caption">tunnel entrance</td>
      <td class="bits">XXXX XXXX</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">X<span class="free">OOO</span> XXXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td>bridge ramp</td>
      <td class="bits">XXXX XXXX</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">X<span class="free">OOO</span> XXXX</td>
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
    </tr>
    <tr>
      <td>A</td>
      <td class="caption">unmovables</td>
      <td class="bits">XXXX XXXX</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">XX<span class="free">OO OO</span>XX</td>
    </tr>
  </tbody>
</table>

</body>
</html>
openttd-ottdgrfs