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authoryexo <yexo@openttd.org>2010-01-04 18:33:43 +0000
committeryexo <yexo@openttd.org>2010-01-04 18:33:43 +0000
commitb378e82676b299dc8d579cd2ac020758fbf52f84 (patch)
tree044688328cdbf84c799fd452f4c38c3132943db1 /docs/landscape.html
parent3e131e2fece740591d9187e19789a34b36c763fa (diff)
downloadopenttd-b378e82676b299dc8d579cd2ac020758fbf52f84.tar.xz
(svn r18719) -Feature: don't delete the rough/rocky status of a tile when it's covered by snow, this allows rocky tiles under snow if you have a variable snowline
Diffstat (limited to 'docs/landscape.html')
-rw-r--r--docs/landscape.html15
1 files changed, 11 insertions, 4 deletions
diff --git a/docs/landscape.html b/docs/landscape.html
index 97b766b46..280005da8 100644
--- a/docs/landscape.html
+++ b/docs/landscape.html
@@ -11,12 +11,13 @@
<body>
<h3><a name="Landscape">Landscape</a></h3>
- <p>Seven attributes (counting &quot;<span style="font-weight: bold;">type_height</span>&quot;) hold the informations about a tile.<BR>
+ <p>Eight attributes (counting &quot;<span style="font-weight: bold;">type_height</span>&quot;) hold the informations about a tile.<BR>
These attributes are referred to as
"<span style="font-weight: bold;">type_height</span>",
"<span style="font-weight: bold;">m1</span>", "<span style="font-weight: bold;">m2</span>",
"<span style="font-weight: bold;">m3</span>", "<span style="font-weight: bold;">m4</span>",
- "<span style="font-weight: bold;">m5</span>" and "<span style="font-weight: bold;">m6</span>".<BR>
+ "<span style="font-weight: bold;">m5</span>", "<span style="font-weight: bold;">m6</span>"
+ and "<span style="font-weight: bold;">m7</span>".<BR>
The most important value is the class of a tile, stored in the upper 4 bits
of the <span style="font-weight: bold;">type_height</span> attribute. The lower 4 bits are used to encode the height and
slope data.
@@ -80,6 +81,7 @@
<li>m1: <a href="#OwnershipInfo">owner</a> of the tile (normally <tt>10</tt>)</li>
<li>m2: see fields</li>
<li>m3 bits 3..0: see fields</li>
+ <li>m3 bit 4: set if the tile is covered with snow</li>
<li>m4 bits 7..5: type of hedge on the SW border of the tile (1 through 6, or 0=none)</li>
<li>m4 bits 4..2: same as 7..5, but for the SE border</li>
<li>m5 bits 7..5: update counter, incremented on every periodic processing for tile types,
@@ -722,8 +724,7 @@
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> (normally <tt>10</tt>)</li>
- <li>m2 bits 7..6: ground density
- <li>m2 bits 5..4: ground
+ <li>m2 bits 8..6: ground
<table>
<tr>
@@ -745,8 +746,14 @@
<td align=left><tt>3</tt>&nbsp; </td>
<td>on shore (density must be 3)</td>
</tr>
+
+ <tr>
+ <td align=left><tt>4</tt>&nbsp; </td>
+ <td>on snow with rough land underneed</td>
+ </tr>
</table>
</li>
+ <li>m2 bits 5..4: ground density</li>
<li>m2 bits 3..0: update counter, incremented on every periodic processing.<br>
on wraparound the growth status is updated (or, if it's <tt>3</tt>, a random action is taken)</li>
<li>m3 bits 7..0: type of trees: