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Tool: JohtoMap - A Pokemon G/S Level Editor

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Well, it's been updated. If you want to be able to change the map's script location, I'd recommend you download it.
 
I've always wanted to try my hand at gen 2 mapping. Thanks for the tool!
 
There are a few maps you have not yet added such as the prototype Safari Zone and Lake of Rage maps.
 
ggctuk said:
There are a few maps you have not yet added such as the prototype Safari Zone and Lake of Rage maps.
Click to expand...
Does it really matter ?
I mean, if you want to edit those, you at least need to create events for them - and that's about the same as creating the whole map from scratch.
 
No, it doesn't really matter but AM has complete listings of maps regardless of whether they are unused or not.
 
ggctuk said:
There are a few maps you have not yet added such as the prototype Safari Zone and Lake of Rage maps.
Click to expand...

Wrong. First off, the Safari Zone is there, in bank 3 (map 81). Second, I didn't "have not added yet" any maps; it's all automatic. Every map you see in the game is there. If you want to load a beta map, use the Load Map from Address feature.
 
ggctuk said:
No, it doesn't really matter but AM has complete listings of maps regardless of whether they are unused or not.
Click to expand...
The reason for that is because all the "beta" maps in the GBA games are complete enough for a map editor to include them by default. By contrast, the G/S beta maps consist only of block data, with no headers. This means that to display them, the editor would have to guess or hardcode:
  • the size of the map
  • the tileset for the map
  • events
  • scripts
  • location on the world map
and more. This data just doesn't exist for the beta maps (with the notable exception of the Safari Zone, which is why it does appear in most map editors). And because the maps don't have headers, you can't use them in your hack anyway.
Lin said:
Well, after reading feedback from more place than one, it looks like a lot of people who knew what they were doing were a little disappointed. I created this editor for two reasons:
1. I needed a project at the time, plus this was a big learning experience for me…
Click to expand...
Cool. Now get back to work on your Zelda editor! :P

Do you have plans to release the source code?
 
Mine's not working :( I know this will be a great tool :'( mine just says microsoft NET framework i dunno how to fix it tho :(
 
Here is a major bug you might want to fix - not sure if this happens for someone else :S

I don't know how this properly works but for example when I modify the events of Route 45, the route gets completely messed up.
No idea why it does that though...

EDIT:
Let's explain a little better :D
Even the change of Picture Number can affect the map in that way, and when done so, VBA gives you an error report of "wrong script pointer" ?
After that, the game freezes.

Also, it's not like I need the tool to change Picture Numbers of people but you should really fix it.
 
Last edited:
miksy91 said:
Here is a major bug you might want to fix - not sure if this happens for someone esle :S

I don't know how this properly works but for example when I modify the events of Route 45, the route gets completely messed up.
No idea why it does that though...
Click to expand...

Oh my gosh! Me too! It is really annoying. I've had to re-start a bunch.
 
miksy91 said:
Here is a major bug you might want to fix - not sure if this happens for someone else :S

I don't know how this properly works but for example when I modify the events of Route 45, the route gets completely messed up.
No idea why it does that though...

EDIT:
Let's explain a little better :D
Even the change of Picture Number can affect the map in that way, and when done so, VBA gives you an error report of "wrong script pointer" ?
After that, the game freezes.

Also, it's not like I need the tool to change Picture Numbers of people but you should really fix it.
Click to expand...

I'm not sure. It might be like another error where it's map-specific. Try resetting the map's script and seeing if anything changes.
 
What does the bottom two abbreviations in the connections window stand for? I don't have enough courage ruining another hack, while trying to change the map connections...
 
Sou1forged said:
What does the bottom two abbreviations in the connections window stand for? I don't have enough courage ruining another hack, while trying to change the map connections...
Click to expand...
Just make a backup, try it out, and restore from backup if things don't work.
 
IIMarckus said:
Just make a backup, try it out, and restore from backup if things don't work.
Click to expand...

Yeah, that's what I usually do, but on more than one occasion I accidentally applied the changes to both hack and backup. Normally I can reverse these things by hand, but when I don't know exactly what I'm doing, I can't know what went wrong and therefore cannot fix it...

Edit: I tried it again and ended up with the same problem I had last time; As soon as I use the new connection, I end up being stuck between the two maps. Until I know what the bottom two boxes are for, I won't be able to tell what I did wrong...
 
Last edited:
The question mark on the top left is there for a reason. Click it and then click the labels or the box that goes with them. They're actually memory pointers, and I'm not 100% on what they do. They're the things that make connections hard. The only thing I remember about them is one is where the data starts for the other map and the other is where you should be able to stand to see the other map.
 
Lin said:
The question mark on the top left is there for a reason. Click it and then click the labels or the box that goes with them. They're actually memory pointers, and I'm not 100% on what they do. They're the things that make connections hard. The only thing I remember about them is one is where the data starts for the other map and the other is where you should be able to stand to see the other map.
Click to expand...

Sorry, I didn't see it. You must have made it to obvious... :P
I'll check into it immediately... Oh, and nice tool you've made. I was about to publish a long tutorial on how to create your own tileset, but this tool enables me to shorten it down drastically, and almost render it obsolete. I may publish the collision data type list, though I doubt it will be of much use.
 
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