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Kilkakon
Posted on 06-17-13 05:10 PM, in A few (hopefully simple) Zelda 3 hacking questions Link | Quote | ID: 154125

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Hi there everyone,

I've been asked by somebody I know to make a Zelda3 (ALTTP) romhack for them, and I've been using some excellent tutorials provided by sorlokreaves at http://lthzelda.wordpress.com/

This has lead me to a few questions, which I hope I can do via hex editing (I'm used to that, so give me an offset and I will play with it!) but if I need to learn ASM then feel free to point me where I should go... I admit I did search around a lot for what I was after but couldn't see much, so here I am. Thanks for anybody who reads this and responds.

A) I want to make the shopkeeper only sell 2 items, i.e., not have one in the middle (I'm making him in the same room as the fortune teller, having three items blocks the stairs and the 'teller). I tried playing around with hex values, and got something close, although there's a graphical anomaly. What'd be the best way to do that?

B) How can I increase the damage of the Cane of Somaria? I'd like it to be double of what it currently is (it seems to be 1/2 of a sword strike) I'm happy with buffing the block collide damage or the fireball damage or both, whichever is easiest.

C) Which particular rom would be the best one to work from as a starting point? I realise the way to make roms legal is with the whole IPS patch thing, but with that train of thought it's best to be using whatever everybody else is using. Mine is dated 28 March 1996 and is 1,049,088 bytes, and is NTSC.

Thanks for your time! Hope that none of those questions were too boring.

Kilkakon
Posted on 06-18-13 01:56 AM, in A few (hopefully simple) Zelda 3 hacking questions Link | Quote | ID: 154134

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Thanks for the replies, guys. Appreciate it~

Good point @ motivation Puzzledude, but yeah I don't mind doing this for me too. I think it's a cute idea, hehe.

A) Alright, well for now I can just have him selling the two items and having the third chopped off by the wall, it's a little dodgy but it'll be okay for now. I'll probably need to learn ASM eventually though.

B) Ah right, no Somaria code found yet. Any suggestions where I should start? I suppose I could keep changing values randomly around where the magic rod damage is. I've reduced it's magic use to 2, although killing anything with more than 10 health starts to test patience.

My early weapons are the Bow (low ammo) and Cane of Somaria, with no sword or shield.

C) Thanks. Yeah I have a headered 1996 one... seems to work okay with Hyrule Magic. Editing graphics with zcompress is a pain as I have to cut out the extra bytes and put them back again with XVI32 but it works.


Haha looking forward to the Super Guide, hope that it surpasses the Perfect Guide. :O

I don't mind things being a little complex (my day job is a computer programmer). Yesterday I was in XVI32 at work, went home, did more XVI32. XD

Kilkakon
Posted on 06-18-13 05:14 PM, in A few (hopefully simple) Zelda 3 hacking questions Link | Quote | ID: 154141

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Hi there~

I did have a go at trying to find the Somaria damage values based off the other ones you provided. Sadly no dice--still took two hits to kill a green soldier defending the palace. I did leave the header on when working with those particular values as with the header on I was able to change the bow strength successfully. I changed every non-zero value I could find but alas I still couldn't kill them in one hit of the block.

With the sword and shield thing, I was following a tutorial, and deleted the uncle guy from the dungeon. I did play through it without any issues and was able to save once I reached the church--but not sure if there was a bug you were referring to after that point.

Kilkakon
Posted on 06-19-13 06:18 PM, in A few (hopefully simple) Zelda 3 hacking questions Link | Quote | ID: 154155

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Nice idea--rearrange the equation around the only constant we have--the damage of the cane, which is 2. Reducing enemy health to 2 makes them die in a single hit from the cane or a thrown object, which is both fine. Thanks for that Puzzledude. I can of course weaken the bow and sword and other objects as I need thanks to the other information you gave above.

What happened when I got to the church is that I was given the "swing" ability, i.e. attacking without a weapon. I only played up to that point though, so not sure what'd happen after that. Does the uncle reappear later in the game? I could always remove him entirely.

I admit I'm not sure what my sequence of weapons'll be just yet. Aiming for more of a rangery sort of focus.

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