Ok second wind, last step
Run the Placement Picker
22fb4544-3120-470f-ab52-8fe97fbd7c99-image.png
If you're making a new map, or you want to do all your placements at a new size (new unit dimensions/Height), then you can use the Automatic Placement Finder, but this will redo all the placements.
For our purposes we just want to mess with the placements around the part we modded. So we'll go straight to Run the Placement Picker.
c637a43f-f660-47f1-9bab-b4039010f9f2-image.png
It's going to ask you 3 prompt questions. Unit zoom (you can use 1 for the standard 100% unit zoom) and then Width and Height. This will define the default dimensions of the placement reticle you'll see in the UI.
Default will be 48x48px, but if your unit graphics are larger this is where you need to define that for the place. You can push up to 68x98px, but this will show some clipping in many of the UI windows. If you want the full image to display height of 54px width 70-80px range works pretty well. Finally it will say that a polgygon file was found and do you want to use it? Click Yes.
5a20dc56-9325-4039-b57b-8c5d85fc2b84-image.png
Now it'll launch an image of your baseline
File > Load Placements
Navigate to your place.txt file
98e3f830-a04c-4fe2-a79e-62c51da22f18-image.png
Now click Edit > Show All Placements Made
Your screen will light up with all the tiny yellow rectangles at the dimensions you specified, wherever placements were made in v3.
3942fb92-a6d7-4900-b203-2de1117e60e2-image.png
What we want to do is blank the placements associated with the Italy tile so we can add in a place for the new Southern Italy spot.
Left click on the map over Italy, when you click OK it will light up red with all the associated placements.
68b00a5c-8a5c-4f22-b050-62373913649f-image.png
Right click and it will begin removing placements. You'll notice the first time you click that the Red rectangle at the bottom of the boot will disappear
Control+Shift right click to save out the new placement for Italy.
469e0f88-3082-43bc-8e16-588431ec01a6-image.png
Now Control+Shift left click the newly blanked spot to add a placement for our new Territory.
Add another red square over Sicily
Control+Shift right click to save out the placement to Southern Italy.
7595af39-6836-4c57-9deb-a8b438fe2fe6-image.png
To change the direction of the overflow lines for placements go to Edit > Show overflow
this will show you which direction the units will spill when they run out of placements. It will be based off the last placement made , so in this case Sicily.
When you're building out the placements for spots you know will be crowded you leave gaps in the overflow area so units don't bunch up on top of the placements in a neighboring TT too hard.
a1cf34dc-d5c4-4400-90f2-3134fad5575a-image.png
Then once you got it all set
File > Save placements
a94ad78f-02f7-4460-8985-84eacb3bf15d-image.png
Now when you close out of tripleA and relaunch your v3
You'll see that the fighter has moved from his old spot. Now he's into overflow position. Since our last placement for the Italy tile was Sardinia, he's over there now, with the line leading off to the right.
Southern Italy hasn't yet been assigned a home in the games XML so it'll still be showing white.
To get it looking the way it's supposed to now we need to open the v3 game xml and create some entries for our new spot. Open the xml in notepad.
In the Territory Name Definitions section we'll add...
<territory name="Southern Italy"/>
In the connections section we'll add...
<connection t1="14 Sea Zone" t2="Southern Italy"/>
<connection t1="Italy" t2="Southern Italy"/>
In territory attachments we'll add...
<attachment name="territoryAttachment" attachTo="Southern Italy" javaClass="games.strategy.triplea.attachments.TerritoryAttachment" type="territory">
<option name="production" value="2"/>
</attachment>
And in Owner Initialized we'll add
<territoryOwner territory="Southern Italy" owner="Italians"/>
When you do all that, the next time you fire up TripleA you'll see Southern Italy under Italian control with a value of 2.
6e099410-da65-45bc-8bae-7c8b5018c2cf-image.png
Now we can add units to the tile within the game XML, and make sure that Italy's starting income matches the new addition, and that sort of stuff within the game file. Figure out what we want to do about Corsica and the like hehe.
One final step would be to noodle our labels and decorative stuff, and to make sure our new Tile also works with our Map Relief. But that'll have to be for another night.
If using WOPRs v3 relief, you should be fine at this stage, since that relief is semi transparent throughout you'll see the new baseline drawing beneath it. If your relief is more opaque or you want to show the baseline at 100% opacity, bring your baseline into GIMP along with your Relief, and use the trick described in the Map Relief guide to open a 1px border where your new line is.
Hopefully that helps a bit. If I think of anything else I try to add it in later, but that should at least get the ball rolling.