Property Building Abilities

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Xenesis
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Property Building Abilities

Post by Xenesis » Mon Apr 28, 2008 9:09 pm

Okay, Mark999 wanted to know how you can set it up to build from the HQ.

It requires a bit of assembly, but I'll show it off here. Note that this only works for human players. AI players need to have their scripting modified and I haven't researched that very much yet.

You need to make two changes to code in order to allow you to build from the HQ. The first just allows you to treat the HQ as a base, the second allows you to customise what build bits you want.

Firstly, open up your hex editor and go to
HQ Building Routine (Players Only)
0x0242EE
By default this is 2A0A.

Change the value of 0A to change what properties are allowed to build. To allow HQs to build, change it to 2A08. 2A06 allows you to build from cities as well.

Now, you'll find that the city/HQ will build as a base. If you want to change this, you'll need to change the build ability bit of the HQ or City. This requires a bit of assembly. Changing it for a Base/Airport/Port just requires changing one value at the end of their pointer, so it's no big deal.

Firstly, you need to change a pointer.
For HQs, the pointer is at 0x2D638, (HQ is ID 8, City is 6, so City's pointer should be at 0x2D628, but no promises).
Change the pointer to a word-aligned address (something ending with an 8 or a 0), for my hack I used 087001C0.

You'll need to add your new small change here.

Code: Select all

2437	mov r4, 0x37
4901	ldre r1, 	
468F	mov pc, r1 (0802D65E)
0802D65E
Change the 37 to whatever you want as a bitsum to allow you to build certain troops from that building.

The hex code you should insert into your ROM should be:
372401498F465ED60208

Here's the build location IDs by default:

0x1: Soldiers
0x2: Treaded Vehicles
0x4: Tire Vehicles
0x10: Aircraft
0x20: Naval Units

Oh, and as a final note, if you set a property to be buildable but it can't actually deploy any units the game will freeze.
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