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Adding New Overworlds into FireRed for Dummies

This is the data for the Overworld for the Seagallop Ferry, Overworld Sprite #152.

Code: 
FF FF 14 11 FF 11 00 08 40 00 40 00 1A 00 00 00 20 37 3A 08 D0 38 3A 08 68 33 3A 08 A8 1C 3A 08 FC 1C 23 08

The sprite is 64x64, so you should be able to follow the tutorial from that point onwards.

I found the data by multiplying 152 by 36, which gives you (dec) 5472.

At 0x3A3BB0, I selected a block of (dec) 5472 bytes, which led me to the offset 0x3A5110. The code you see above are the first 36 bytes at 0x3A5110; the overworld data for the Seagallop Ferry.
 
The #152 Seagallop Ferry overworld is only using 1 frame of original Fire Red Rom, If I using for a lugia 9 frame overworld it's no problem? Another question, can I add a bigger than 64x64 overworld sprite to the game? Like the #153 S.S. Anne overworld sprite.

Thanks.
 
I need help, I can't find some of the free spaces. I would search them on hex workshop, like 90000 and 910000, and wouldn't find them, if you have an answer please pm me, i would really appreciate it.
 
Thanks for this amazing tutorial! It was very informative and helped me understand some other things as well. Was able to successfully add my first new Overworld on my first attempt :). I'm surprised this tutorial has only reached two pages!
 
Okay, now I have ANOTHER problem. The sprites in the new table all load to the player's palette, which causes weird colour issues. How do I fix this?
 
Last edited:
Zaerosz said:
Okay, now I have ANOTHER problem. The sprites in the new table all load to the player's palette, which causes weird colour issues. How do I fix this?
Click to expand...
The only thing I could think of you have the palette number set to the heroes on the new overworlds data.
 
I don't get what i'm doing wrong! :( I followed your tutorial PERFECTLY except I wanted 20 OWs instead of 1, so at step 7, instead of putting a 1 in the SpriteCount, I put a 20.

My problem is when I go to OverworldEditor, I can only edit the first index, once I try to go to index 1,2,3,4 ... ect, I keep getting errors! I get an error that says:
"Error 63 (Bad Record Number) in prodecure LoadSpriteStructure of frmOverworldEditor".

Can someone please tell me what I am doing wrong!?!
 
awipe1 said:
I don't get what i'm doing wrong! :( I followed your tutorial PERFECTLY except I wanted 20 OWs instead of 1, so at step 7, instead of putting a 1 in the SpriteCount, I put a 20.

My problem is when I go to OverworldEditor, I can only edit the first index, once I try to go to index 1,2,3,4 ... ect, I keep getting errors! I get an error that says:
"Error 63 (Bad Record Number) in prodecure LoadSpriteStructure of frmOverworldEditor".

Can someone please tell me what I am doing wrong!?!
Click to expand...

OWERE has a control on how many overworlds and frames you can have based on the original.

Use NSE classic in professional view or whatever and turn off all boundarys.

Remember to create and edit the ini file if necessary. Instructions for it are in the readme that goes with NSE.
 
karatekid552 said:
OWERE has a control on how many overworlds and frames you can have based on the original.

Use NSE classic in professional view or whatever and turn off all boundarys.

Remember to create and edit the ini file if necessary. Instructions for it are in the readme that goes with NSE.
Click to expand...
Hey sorry to be a bother but how exactly do I switch NSE classic into professional view?
 
Thanks for the help but it still doesn't work! I don't know how to access the other sprites, i can only access the 151 OWs that fire red gives you :(

When I try to go to 152, it completely messes up and goes to a random height and width, and the image is a bunch of random colours. Is there any other way of making this work? I want to add more OWs but this game hates me. With this tutorial I can add 1, but I can't add anymore then that!

I hate this part in ROM hacking, this is what turns me away form it. If they made adding OWs and Trainer Sprites easier, I would have a much better time! :(
 
awipe1 said:
Thanks for the help but it still doesn't work! I don't know how to access the other sprites, i can only access the 151 OWs that fire red gives you :(

When I try to go to 152, it completely messes up and goes to a random height and width, and the image is a bunch of random colours. Is there any other way of making this work? I want to add more OWs but this game hates me. With this tutorial I can add 1, but I can't add anymore then that!

I hate this part in ROM hacking, this is what turns me away form it. If they made adding OWs and Trainer Sprites easier, I would have a much better time! :(
Click to expand...

So you wanted 20 new sprites instead of 1. As you said, if I read correctly, you can edit the first one. Now, did you do anything besides change the 1 to a 20 in the .ini file? If so, you need to basically repeat the entire tutorial starting at step 4. Meaning, each sprite gets their own pointer, data, and frame data.
 
awipe1 said:
Thanks for the help but it still doesn't work! I don't know how to access the other sprites, i can only access the 151 OWs that fire red gives you :(

When I try to go to 152, it completely messes up and goes to a random height and width, and the image is a bunch of random colours. Is there any other way of making this work? I want to add more OWs but this game hates me. With this tutorial I can add 1, but I can't add anymore then that!

I hate this part in ROM hacking, this is what turns me away form it. If they made adding OWs and Trainer Sprites easier, I would have a much better time! :(
Click to expand...

Adding over worlds is extremely complicated. I still haven't gotten it to work perfectly. However, I do know that when you added to the table, that there is more data after that. You needed to have the last pointer point to the data you created in step 4. This data controls the height and width and all other properties. Then you have to point it to the location of the frames. So, return to steps 3 and 4 and look at it more closely.
 
@Quickster and @karatekid522
Thanks alot, I think I get it now! :P You guys are both awesome, It's amazing to have people like you in TPC, it's what makes this website the bomb! Espically you karatekid522, you answer every question I have, thanks alot!
 
I have a question, in my ROM 0x1A2000 is not like yours, it doesnt have all those 00000, not even the B0 FD 39 08 B0 FF 39 08 B0 FE 39 08 code is there anywhere, why does that happen?
 
kmsptd162 said:
I have a question, in my ROM 0x1A2000 is not like yours, it doesnt have all those 00000, not even the B0 FD 39 08 B0 FF 39 08 B0 FE 39 08 code is there anywhere, why does that happen?
Click to expand...

If you applied JPAN's engine in patch form, like you were supposed to, then this is guaranteed not to be the case.

If you do not want to use JAPN's engine, or you are on RSE, you can try Darthatron's and my tutorial here. This is not as effective as JPAN's engine, as it only allows you to max out the OWs at 256 instead of ~65,000 but it is another option.
 
Thanks, problem solved ^-^. I'll give it a look on the tutorials, im also interested on adding OWs in emerald
 
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