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Add new signal type: no-entry signal

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This is only passable in one direction, but does not have a signal
or show an aspect in the opposite direction

Add a setting for whether this is shown in the signal UI.
Off by default.
This commit is contained in:
Jonathan G Rennison
2021-09-04 03:14:09 +01:00
parent b3aa59c85d
commit 5d351a14d2
31 changed files with 256 additions and 31 deletions
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26
docs/newgrf-additions-nml.html
View File

@@ -42,6 +42,13 @@
Programmable pre-signals have a signal type (<span class="code">getbits(extra_callback_info2, 16, 8)</span>) of 6.
</td>
</tr>
<tr><td>enable_no_entry_signals</td><td>0 or 1</td>
<td>
Enable no-entry signal graphics in <a href="https://newgrf-specs.tt-wiki.net/wiki/NML:Railtypes#signals">railtype signals</a>.<br />
No-entry signals have a signal type (<span class="code">getbits(extra_callback_info2, 16, 8)</span>) of 7.<br />
No-entry signals always have a signal state of red.
</td>
</tr>
<tr><td>enable_restricted_signals</td><td>0 or 1</td>
<td>
Enable restricted signal flag in <a href="https://newgrf-specs.tt-wiki.net/wiki/NML:Railtypes#signals">railtype signals</a>.<br />
@@ -132,6 +139,18 @@
</table>
</td>
</tr>
<tr><td>NO_ENTRY_SIGNAL</td><td>16</td>
<td>
<b>No-entry signals</b>
<p>No-entry signal graphics come in groups of 8. These groups contain sprites in the same order as the red sprites of 1275-1290 in trg1[r].grf and <a href="https://newgrf-specs.tt-wiki.net/wiki/Action5#04_Signal_graphics.">Action 5 type 4 (signals)</a>;
red only, for each of: SW-facing, NE-facing, NW-facing, SE-facing, E-facing, W-facing, S-facing, N-facing.
<table>
<tr><th>Group</th><th>Contents</th></tr>
<tr><td>0</td><td>Semaphore no-entry signals</td></tr>
<tr><td>1</td><td>Lighted no-entry signals</td></tr>
</table>
</td>
</tr>
</table>
<h3>Signal graphics using switches</h3>
<p>
@@ -159,6 +178,13 @@
Programmable pre-signals have a signal type (<span class="code">getbits(extra_callback_info2, 16, 8)</span>) of 6.
</td>
</tr>
<tr><td>enable_no_entry_signals</td><td>0 or 1</td>
<td>
Enable no-entry signal graphics.<br />
No-entry signals have a signal type (<span class="code">getbits(extra_callback_info2, 16, 8)</span>) of 7.<br />
No-entry signals always have a signal state of red.
</td>
</tr>
<tr><td>enable_restricted_signals</td><td>0 or 1</td>
<td>
Enable restricted signal flag.<br />

22
docs/newgrf-additions.html
View File

@@ -223,6 +223,12 @@
The property length is 1 byte. 0 is disabled (default). 1 is enabled.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_railtype_programmable_signals</font>, version 1</p>
<h4 id="railtype_enable_no_entry_signals">Enable custom signal sprites for no-entry signals (mappable property: railtype_enable_no_entry_signals)</h4>
<p>This enables <a href="https://newgrf-specs.tt-wiki.net/wiki/Action3/Railtypes#Signal_sprites_.280B.29">Action 2/3 - Railtype custom signal sprites</a> for no-entry signals.<br />
No-entry signals have the signal type value: 07.<br />
The property length is 1 byte. 0 is disabled (default). 1 is enabled.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_railtype_no_entry_signals</font>, version 1</p>
<h4 id="railtype_enable_restricted_signals">Enable restricted signal flag for custom signal sprites (mappable property: railtype_enable_restricted_signals)</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 />
When enabled, bit 24 of variable 18 (extra callback info) is set if the signal is restricted (has a routing restriction program attached).<br />
@@ -314,6 +320,12 @@
The Action 0 Id field is not used, the value is ignored.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_programmable_signals</font>, version 1</p>
<h4 id="signals_enable_no_entry_signals">Enable custom signal sprites for no-entry signals (mappable property: signals_enable_no_entry_signals)</h4>
<p>This enables <a href="#a3signals_custom_signal_sprites">Action 2/3 Signals (Feature 0E) custom signal sprites</a> for no-entry signals for this GRF.<br />
No-entry signals have the signal type value: 07.<br />
The property length is 1 byte. 0 is disabled (default). 1 is enabled.
</p>
<p>This is indicated by the feature name: <font face="monospace">action0_signals_no_entry_signals</font>, version 1</p>
<h4 id="signals_enable_restricted_signals">Enable restricted signal flag for custom signal sprites (mappable property: signals_enable_restricted_signals)</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 />
When enabled, bit 24 of variable 18 (extra callback info) is set if the signal is restricted (has a routing restriction program attached).<br />
@@ -418,5 +430,15 @@
</table>
</p>
<p>This is indicated by the feature name: <font face="monospace">action5_programmable_signals</font>, version 1</p>
<h4 id="no_entry_signals">No-entry signal graphics (mappable type: no_entry_signals)</h4>
<p>No-entry signal graphics come in groups of 8. These groups contain sprites in the same order as the red sprites of 1275-1290 in trg1[r].grf and <a href="https://newgrf-specs.tt-wiki.net/wiki/Action5#04_Signal_graphics.">Action 5 type 4 (signals)</a>;
red only, for each of: SW-facing, NE-facing, NW-facing, SE-facing, E-facing, W-facing, S-facing, N-facing.
<table>
<tr><th>Group</th><th>Contents</th></tr>
<tr><td>0</td><td>Semaphore no-entry signals</td></tr>
<tr><td>1</td><td>Lighted no-entry signals</td></tr>
</table>
</p>
<p>This is indicated by the feature name: <font face="monospace">action5_no_entry_signals</font>, version 1</p>
</body>
</html>