SystemMap enhancements

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george moromisato
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Sat Aug 11, 2012 5:22 pm

Prompted by Wolfy and RPC I've made some enhancements to SystemMap to make it easier to make topologies. 1.08e introduces a new element on system maps called <TopologyCreator> which allows you some basic creation of topologies:

Code: Select all

<SystemMap ...>
   <Node id="sys1" ...>
      ...
   </Node>

   <Node id="sys2" ...>
      ...
   </Node>

   <TopologyCreator>
      <Stargate from="sys1:Inbound" to="sys2:Outbound"/>
   </TopologyCreator>
</SystemMap>
The above is the simplest use of <TopologyCreator>. The SystemMap defines two nodes ("sys1" and "sys2") and the topology creator makes a stargate link between the two. The link is a bi-directional link. The advantage of this method is that you don't have to specify any root nodes (which was confusing) nor do you need to specify any stargates in the nodes themselves. The nodes can just specify a position on the map (x,y) and a system type. The TopologyCreator does the work of making stargates.

Note: As in previous schemes, a node is not created unless referenced. The TopologyCreator causes a reference and thus causes both sys1 and sys2 to be created. But if the SystemMap defined a "sys3" and it was not referenced anywhere, then it will not be created. This is useful if you want systems to sometimes appear:

Code: Select all

<SystemMap ...>
   <Node id="sys1" ...>
      ...
   </Node>

   <Node id="sys2" ...>
      ...
   </Node>

   <Node id="sys3" ...>
      ...
   </Node>

   <TopologyCreator>
      <Stargate from="sys1:Inbound" to="sys2:Outbound"/>
      <Stargate chance="50" from="sys2:Inbound" to="sys3:Outbound"/>
   </TopologyCreator>
</SystemMap>
In this example, the second <Stargate> element has a 50% chance of appearing; Only if it appears does the connection from sys2 to sys3 happen. The TopologyCreator also supports <StargateTable> and <Stargates> (groups).

Another addition is a <NodeGroup> which allows you to define groups of nodes that should be created together. For example:

Code: Select all

<SystemMap ...>
   <Node id="sys1" ...>
      ...
   </Node>

   <Node id="sys2" ...>
      ...
   </Node>

   <Node id="sys3" ...>
      ...
   </Node>

   <NodeGroup id="imperialRegion1">
      <Stargate from="sys1:Inbound" to="sys2:Outbound"/>
      <Stargate chance="50" from="sys2:Inbound" to="sys3:Outbound"/>
   </NodeGroup>

   <TopologyCreator>
      <Node id="imperialRegion1"/>
   </TopologyCreator>
</SystemMap>
In the above XML, the <NodeGroup> element defines a set of node + stargates and calls it "imperialRegion1". As with other definitions, this does not automatically create the nodes. Someone still has to refer to "imperialRegion1". The entry in <TopologyCreator> refers to "imperialRegion1" and thus creates it.

Why go through the trouble of indirection? After all, you could just define everything within TopologyCreator. The advantage is that <TopologyCreator> can refer to nodes and node regions on other maps not just its own. For example:

Code: Select all


<SystemMap UNID="&unidLibraryMap;">
   <Node id="sys1" ...>
      ...
   </Node>

   <Node id="sys2" ...>
      ...
   </Node>

   <Node id="sys3" ...>
      ...
   </Node>

   <NodeGroup id="imperialRegion1">
      <Stargate from="sys1:Inbound" to="sys2:Outbound"/>
      <Stargate chance="50" from="sys2:Inbound" to="sys3:Outbound"/>
   </NodeGroup>
</SystemMap>

<SystemMap UNID="unidAdventureMap"
   displayOn="&unidLibraryMap;"
   >

   <TopologyCreator>
      <Node id="imperialRegion1"/>
   </TopologyCreator>
</SystemMap>
The above defines two SystemMap objects; the first unidLibraryMap is defined inside a library. Because it doesn't have a TopologyCreator element, it doesn't actually create any nodes. But it does define some.

The second map is defined in an adventure. It has a TopologyCreator that refers to elements in the library map. Thus a library could have many different pre-built topologies and an adventure can choose one (either randomly or not).

This is the method that I want to use for the Human Space library. The Human Space library will define various regions, including the New Beyond, Outer Realm, etc. An individual adventure can then use those regions in its own maps without having to redefine them. This will make it easier to mix-and-match topologies.

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Wolfy
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Sat Aug 11, 2012 5:44 pm

Can't wait to try this out!

So linking to any node in a nodegroup allows us to connect to a different nodegroup/topology, and also creates the full nodegroup? or do we need to first reference the nodegroup, and then link it?
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RPC
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Sat Aug 11, 2012 5:45 pm

This look great! If only it came sooner ;D
Is it possible to make a gate go in one direction? I'm thinking about making a tutorial system for Star Network and I don't want it accessible if the Player decides to leave.
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alterecco
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Sat Aug 11, 2012 8:41 pm

RPC wrote:This look great! If only it came sooner ;D
Is it possible to make a gate go in one direction? I'm thinking about making a tutorial system for Star Network and I don't want it accessible if the Player decides to leave.
Just destroy the gate back after the player has entered. Or just use script to gate the player to whereever you want him, no topology needed.
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digdug
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Sat Aug 11, 2012 10:19 pm

this is a great improvement. I would definitely try this out.

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RPC
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Sat Aug 11, 2012 11:44 pm

alterecco wrote:Just destroy the gate back after the player has entered. Or just use script to gate the player to whereever you want him, no topology needed.
Hmm yeah, good point.
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george moromisato
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Sat Aug 11, 2012 11:46 pm

Wolfy wrote:Can't wait to try this out!

So linking to any node in a nodegroup allows us to connect to a different nodegroup/topology, and also creates the full nodegroup? or do we need to first reference the nodegroup, and then link it?
You first need to reference the nodegroup and then link to anything in it. If you don't reference the nodegroup then only the node that you reference will be created.

george moromisato
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Sat Aug 11, 2012 11:48 pm

RPC wrote:This look great! If only it came sooner ;D
Is it possible to make a gate go in one direction? I'm thinking about making a tutorial system for Star Network and I don't want it accessible if the Player decides to leave.
Yes. It is not well-tested, but you can add:

oneWay="true"

to a <Stargate> element.

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RPC
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Tue Sep 25, 2012 1:46 am

Ok, so I typCreated this:
http://paste.neurohack.com/view/YdaRP/
Stargates aren't showing up, yet clearly there is:
<Stargate from="SE:Yoshiosakai1" to="Yoshiosakai:SE2"/>
But it didn't show on the map.
Does that mean that I need to make the <SystemTypes> have the right amount of gates or something?
I thought topologyCreator made the gates irregardless...
1.08f btw.
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Xanthe V
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Mon Oct 15, 2012 12:17 am

AGH! I cannot get my mod working with a root element and i'm just too pissed!! AAAGH! I don't know any root element codes! Somebody help me PLZZZZ!! :cry:

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RPC
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Mon Oct 15, 2012 12:23 am

Xanthe V: can you make a new thread? Also, give more info, root element is a bit vague o.O
This might help (look at the tutorial part)
http://wiki.neurohack.com/transcendence ... /tutorials
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Der Tod ist der zeitlose Frieden und das leben ist der Krieg
Wir müssen wissen — wir werden wissen!
I don't want any sort of copyright on my Transcendence mods. Feel free to take/modify whatever you want.

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