Please help with these questions!
1.) Is there a way to give the command centre an attack?
2.) Is there a way to make refineries give cash every few seconds instead of SCVs?
3.) Is it possible to change a unit's speed?
4.) Is it possible to make a mobile bunker?

Thanks!

Post has been edited 1 time(s), last time on Jul 17 2012, 8:17 am by Rye123.

1 - firegraft, iscript, datedit
2 - exe edit
3 - flingy.dat or iscript (flingy for air flag, iscript for ground pathing)
4 - not sure, if anything you are likely to encounter hard code or issues related to the overlay I think. Never tried it because I always made my stuff AI friendly and bunkers are far from Ai friendly.

Fairly certain mobile bunkers are impossible since the attack origin will always be where the bunker was first created.

How do I go about doing the possible ones?

Command Center with an attack... First, you'll need to give it a weapon in units.dat. Second, you'll need to make the graphic turn in, iirc, images.dat, but I'm very unsure about this step. Third, give it an attack animation in iscript.bin; look at the Photon Cannon script if you need an example, or one of the tutorials floating around. Lastly, give it an attack button in Firegraft.

Refineries giving cash periodically will require either triggers or a plugin, as opposed to an EXE Edit like Iskatu said as there isn't one for that. I'm unsure of how to import triggers into a mod, though, honestly.

Unit speed is controlled by iscript.bin and optionally also by flingy.dat. The move command in iscript must go in a walking animation, and makes the unit move up to that many pixels that frame. Like, move 7 will make it move up to 7px. For flingy.dat, you must set the unit to flingy.dat control in the graphics tab of units.dat, then edit the flingy, and it should be obvious how.

Mobile Bunkers are weird. As Hydro said, the units attack from where they were loaded, not the actual center of the Bunker. I don't see any way to do it.

You could look at how the Photon Cannon attacks. You may not need the Command Centre to turn in order to attack. Again, see the Photon Cannon and its various properties.

I think triggers need some work with modifying existing triggers of game type rules. I don't remember how to do any of this.

Firegraft plugin = ultimately an exe edit. Haven't messed with triggers. I think you can port triggers into a mod by replacing the default .got files or whatever they were. You can't use locations, though, AFAIK. Not something I did much with other than to change starting resources.

Triggers are done with .got templates and their associated .trg files. But as IskatuMesk mentioned locations don't normally work. The reason you can't normally use locations with got trg's is that all the locations are positioned at 0,0 with size 0,0 (even "Everywhere") when not in UMS. But you can use LocUnlock plugin to be able to modify the locations through triggers. You'll also need to use a custom .trg compiler to generate the LocUnlock actions. PyTRG (from PyMS) has built in support, ProTRG can compile them though you'll have to make the actions raw, and there may be some other programs but I can't think of any.
The other problem with got trg's is that some actions seem to be disabled in melee, so even though you have locations they just dont work. What the OP wants to do should definitely work (off the top of my head, all Conditions should work, just some actions might not work, like: GiveUnitsToPlayer and Modify Shields).

(Note: All programs menioned can be found in my sig.)