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Signals: Add variable for restriction info, add bit for reserve through

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Jonathan G Rennison
2022-06-12 09:00:31 +01:00
parent 28724d651d
commit ba52fbeb91
11 changed files with 145 additions and 28 deletions
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docs/newgrf-additions.html
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@@ -241,6 +241,7 @@
This flag should only be set if the Action 2/3 actually returns a different sprite when bit 24 of variable 18 is set.<br />
The property length is 1 byte. 0 is disabled (default). 1 is enabled.
</p>
<p>See also: <a href="#railtype_signal_restriction_info">railtype_signal_restriction_info variable</a></p>
<p>This is indicated by the feature name: <font face="monospace">action0_railtype_restricted_signals</font>, version 1</p>
<h4 id="railtype_enable_signal_recolour">Enable recolouring for custom signal sprites (mappable property: railtype_enable_signal_recolour)</h4>
<p>This applies to <a href="https://newgrf-specs.tt-wiki.net/wiki/Action3/Railtypes#Signal_sprites_.280B.29">Action 2/3 - Railtype custom signal sprites</a>.<br />
@@ -358,6 +359,7 @@
The property length is 1 byte. 0 is disabled (default). 1 is enabled.<br />
The Action 0 Id field is not used, the value is ignored.
</p>
<p>See also: <a href="#signals_signal_restriction_info">signals_signal_restriction_info variable</a></p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_restricted_signals</font>, version 1</p>
<h4 id="signals_enable_signal_recolour">Enable recolouring for custom signal sprites (mappable property: signals_enable_signal_recolour)</h4>
<p>This applies to <a href="#a3signals_custom_signal_sprites">Action 2/3 Signals (Feature 0E) custom signal sprites</a> for this GRF.<br />
@@ -547,6 +549,18 @@
<h4 id="varaction2_station_var42">Track type in purchase list (42)</h4>
<p>This is indicated by the feature name: <font face="monospace">varaction2_station_var42</font>, version 1</p>
<br />
<h3 id="varaction2_railtypes"><a href="https://newgrf-specs.tt-wiki.net/wiki/VariationalAction2/Railtypes">Variational Action 2 - Railtypes</a></h3>
<h4 id="railtype_signal_restriction_info">Signal routing restriction information (mappable variable: railtype_signal_restriction_info)</h4>
<p>This applies to <a href="https://newgrf-specs.tt-wiki.net/wiki/Action3/Railtypes#Signal_sprites_.280B.29">Action 2/3 - Railtype custom signal sprites</a>.<br />
<table>
<tr><th>Bit</th><th>Value</th><th>Meaning</th></tr>
<tr><td>0</td><td>1</td><td>This signal has a routing restriction program attached</td></tr>
<tr><td>1</td><td>2</td><td>Reserve through is unconditionally set in the routing restriction program</td></tr>
</table>
</p>
<p>See also: <a href="#railtype_enable_restricted_signals">railtype_enable_restricted_signals property</a></p>
<p>This is indicated by the feature name: <font face="monospace">action0_railtype_restricted_signals</font>, version 2</p>
<br />
<h3 id="varaction2_object"><a href="https://newgrf-specs.tt-wiki.net/wiki/VariationalAction2/Objects">Variational Action 2 - Objects</a></h3>
<h4 id="object_foundation_tile_slope">Tile slope after foundation applied (mappable variable: object_foundation_tile_slope)</h4>
<p>This has the same format as bits 8-12 of object variable 41.</p>
@@ -557,6 +571,18 @@
This is useful for xoring with bits 8-12 of variable 41, because if this variable is unavailable then the result is still the underlying tile slope.</p>
<p>This is indicated by the feature name: <font face="monospace">action0_object_edge_foundation_mode</font>, version 2</p>
<br />
<h3 id="varaction2_signals"><a href="https://newgrf-specs.tt-wiki.net/wiki/VariationalAction2">Variational Action 2 - Signals (Feature 0E)</a></h3>
<h4 id="signals_signal_restriction_info">Signal routing restriction information (mappable variable: signals_signal_restriction_info)</h4>
<p>This applies to <a href="#a3signals_custom_signal_sprites">Action 2/3 Signals (Feature 0E) custom signal sprites</a>.<br />
<table>
<tr><th>Bit</th><th>Value</th><th>Meaning</th></tr>
<tr><td>0</td><td>1</td><td>This signal has a routing restriction program attached</td></tr>
<tr><td>1</td><td>2</td><td>Reserve through is unconditionally set in the routing restriction program</td></tr>
</table>
</p>
<p>See also: <a href="#signals_enable_restricted_signals">signals_enable_restricted_signals property</a></p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_restricted_signals</font>, version 2</p>
<br />
<br />
<h3 id="a3signals"><a href="https://newgrf-specs.tt-wiki.net/wiki/Action3">Action 3 - Signals (Feature 0E)</a></h3>
<p>Note that Action 3 feature 0E is not supported (does nothing) in standard OpenTTD.</p>