City square behaviour - patch suggestion

Renergy · Jun 7, 2014

Hello there, or rather - Dear darkpanda

Some patch suggestions/wishes.

Would it be possible to patch civ so one could build railroad on a city square? (settler - R key). Now it is only possible to have city square with a railroad if it existed before its founding.

My guess is this might be not so hard to do (as it is already possible to "mine" city square after the founding of the city). Guess there is simple check somewhere that could be inhibited by NOPs.

Completely different story is this imo (very) hard-to-implement change - two parts:
1) city square of a newly founded city would get irrigation only if neighbouring square had water or was already irrigated
2) it would be possible to extend irrigation from city square [now the city square is not taken into account in this regard when irrigating]

kirkham7 · Jun 8, 2014

How about city square gains railroad once it is researched? If it's not possible just let me know (I'll just come up with another crazy idea :groucho:

).

Renergy · Jun 8, 2014

kirkham7 said:
How about city square gains railroad once it is researched?

That would be imo very hard to do, requiring adding a major chunk of code, since civ does not do anything similar already.

What crossed my mind: Add railroad instead of irrigation to city square when founding it, from the beginning of the game. One could irigate the city square later - it is already possible to do so (e.g. when the city was found on jungle or forrest). That - perhaps - might be just a minor tweak (no need to be able to railroad a city square, then).

darkpanda · Jun 8, 2014

This railroad in city square keeps coming back in your requests, guys

I'll take some time to look into it, probably tomorrow.

kirkham7 · Jun 8, 2014

Well, I for one can't help it, it seems only natural that you should be able to add a railroad to a city. But yes, I have asked many times for it.

darkpanda · Jun 9, 2014

At last, Settlers can build Railroad in cities!

~~Unfortunately, I could only make a patch for all versions but EN474.03 and RN474.04... For some reason, their assembly is different... I'll look it up later, don't worry.~~

I did manage to find the assembly for 03 and 04, the patch is updated accordingly below, but untested.

Code:

offsets:
 EN474.01:[B] 0x5439[/B]
 EN475.01: [B]0x5439[/B]
 EN474.05: [B]0x546B[/B]
 FR474.05:[B] 0x554F[/B]
 
original bytes: [COLOR="Green"]83C4043D000075 03 E91200[/COLOR]
 patched bytes: [COLOR="Green"]83C4043D000075[/COLOR] [B][COLOR="Red"]0C[/COLOR][/B] [COLOR="Green"]E91200[/COLOR]

offsets:
 EN474.03:[B] 0x52BB[/B]
 EN474.04:[B] 0x52BB[/B]

original bytes: [COLOR="Green"]F646C001 7506 F646C010[/COLOR]
 patched bytes: [COLOR="Green"]F646C001[/COLOR] [B][COLOR="Red"]9090[/COLOR][/B] [COLOR="Green"]F646C010[/COLOR]

And some screenshots to see it in action, before, during and after railroading the city:

BEFORE:

DURING:

AFTER:

Enjoy!

Renergy · Jun 9, 2014

Just tested it, works like a charm.

:culture:

...one byte, one stroke, then save and go
to railroad - a city square!... :culture:

It's a kind of magic, or rather C'est magnifique! :goodjob:

Thanks a lot, darkpanda.

darkpanda · Jun 9, 2014

Hehe, I'm quite the amateur of Queen myself...

:culture:

Here we are, born to be kings,
We're the princes of the CivDOS games! :culture:

And, you're welcome, too.

darkpanda · Jun 9, 2014

Also, I did find the code to patch for versions 03 and 04, and updated the patch info in the post above, but I didn't test them. kirkham7, if I recall correctly, I think you have one of those, would you mind confirming?

kirkham7 · Jun 9, 2014

Yeah, I'll have a look.

kirkham7 · Jun 10, 2014

Alright, works just fine. My first time through I used my ten key and it added to the filesize (big no no), of course civ didn't load then, but I tried it again with my normal number keys, and it worked. Must have pressed my num lock or something, lol. Anyways, it works just fine for me. Thanks a bunch!

darkpanda · Jun 10, 2014

Great

I know you also suggested setting railroad flag on completion of mass transit, I'm keeping this in mind for later.

kirkham7 · Jun 10, 2014

Sweet, thanks for all of your work.

Svetkavitsa · Dec 12, 2014

I just tried this out on patch EN474.04 and it worked like a charm. It always bugged me that you can't railroad cities, and now I don't have to worry about it anymore

.

GoldBerg · Dec 15, 2014

Does the AI use 'railroad on cities' too,
when it is patched?

DragonFart · May 18, 2015

So which file does one edit, in order for this to work?

kirkham7 · May 18, 2015

The executable for civ (civ.exe). Make sure to back up your file before making changes. To start out, just download darkpanda's jCivED program, it will patch your file for you.

City square behaviour - patch suggestion

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