ROM Hack Discussion Animal Crossing: New Horizons -- NHSE Map Sharing Thread

[MichaelBui]

I will put up my question here as I believe many other people will have the same question:
"How to import the dream dump/save files into my player's dreams and access them during the game without an Internet connection"

I've been using NHSE but I don't know if NHSE has this feature
I've been using JKSV but then it's just loading another save file? I want to keep my customized players (me & my 7yo daughter) with my beloved villagers...

Thank you so much (also thanks chworden for your helps)

 

[coco_loco]

I will put up my question here as I believe many other people will have the same question:
"How to import the dream dump/save files into my player's dreams and access them during the game without an Internet connection"

This guide is to make a dream island your own. From there, you can update your dream island with it and then edit your main.dat file to import all of your original files in order to recover your original island while having the new dream island.

In NHSE, open the main.dat file from your island.

1. Go to Map - Edit map - Edit field items.
   • Dump/Import - Dump all acres
2. Buildings:
   • Dump Buildings
   • Write down the Plaza X & Y location coordinates
3. Terrain:
   • Dump/Import - Dump all acres
4. Acres:
   • Dump/Import - Dump Map Acres

Now do the exact same steps for any dream island main.dat you want to have in your dream offline.

After you've exported both your island and dream island main.dat map files, open your own save main.dat and go to Map - Edit map - Edit field items. You need to import all 4 files you exported from the dream save.

My recommendation is to do it in inverse order, starting from 4. Acres (which will set the correct river exit locations). So:

1. Import Acres
2. Import Terrain
3. Import Buildings (remember to set the correct Plaza X & Y coordinates from the dream main.dat file)
4. Import Items
   • Delete Luna's Bed in the plaza
   • Delete item #13218 in the plaza

Update your dream with this new island. Then after it's updated, go back to edit your main.dat and import your original files and plaza coordinates.

Do with this guide what you will, but you shouldn't be updating your own dream island with another person's island, or playing online with another person's island for that matter. I use this method mainly for playing around with the editor, and never to play online with other people.

 

[MichaelBui]

This guide is to make a dream island your own. From there, you can update your dream island with it and then edit your main.dat file to import all of your original files in order to recover your original island while having the new dream island.

In NHSE, open the main.dat file from your island.

1. Go to Map - Edit map - Edit field items.
   • Dump/Import - Dump all acres
2. Buildings:
   • Dump Buildings
   • Write down the Plaza X & Y location coordinates
3. Terrain:
   • Dump/Import - Dump all acres
4. Acres:
   • Dump/Import - Dump Map Acres

Now do the exact same steps for any dream island main.dat you want to have in your dream offline.

After you've exported both your island and dream island main.dat map files, open your own save main.dat and go to Map - Edit map - Edit field items. You need to import all 4 files you exported from the dream save.

My recommendation is to do it in inverse order, starting from 4. Acres (which will set the correct river exit locations). So:

1. Import Acres
2. Import Terrain
3. Import Buildings (remember to set the correct Plaza X & Y coordinates from the dream main.dat file)
4. Import Items
   • Delete Luna's Bed in the plaza
   • Delete item #13218 in the plaza

Update your dream with this new island. Then after it's updated, go back to edit your main.dat and import your original files and plaza coordinates.

Do with this guide what you will, but you shouldn't be updating your own dream island with another person's island, or playing online with another person's island for that matter. I use this method mainly for playing around with the editor, and never to play online with other people.

Really appreciate your sharing! But this is more to replace my current island with the new one from the dream save file?
I'm looking for a method to NOT replacing my current island, just access via dreams when my players go to sleep (still keep my current island) so that my 7yo daughter can play in current island but able to "visit" the dream islands easily.

 

[coco_loco]

Really appreciate your sharing! But this is more to replace my current island with the new one from the dream save file?
I'm looking for a method to NOT replacing my current island, just access via dreams when my players go to sleep (still keep my current island) so that my 7yo daughter can play in current island but able to "visit" the dream islands easily.

I don't think NHSE allows to change a dream directly, hence why you could replace your island with the one you want to have in a dream, upload it to your dream, then replace the island back to your original one! I believe those steps would work until (if) we find a way to directly make changes to a dream from a save editor! Sorry in advance if I didn't fully understand your request

 

[MichaelBui]

I don't think NHSE allows to change a dream directly, hence why you could replace your island with the one you want to have in a dream, upload it to your dream, then replace the island back to your original one! I believe those steps would work until (if) we find a way to directly make changes to a dream from a save editor! Sorry in advance if I didn't fully understand your request

Interesting! Can we upload the island without Internet? Can NHSE do that?

 

[Al3need44]

This guide is to make a dream island your own. From there, you can update your dream island with it and then edit your main.dat file to import all of your original files in order to recover your original island while having the new dream island.

In NHSE, open the main.dat file from your island.

1. Go to Map - Edit map - Edit field items.
   • Dump/Import - Dump all acres
2. Buildings:
   • Dump Buildings
   • Write down the Plaza X & Y location coordinates
3. Terrain:
   • Dump/Import - Dump all acres
4. Acres:
   • Dump/Import - Dump Map Acres

Now do the exact same steps for any dream island main.dat you want to have in your dream offline.

After you've exported both your island and dream island main.dat map files, open your own save main.dat and go to Map - Edit map - Edit field items. You need to import all 4 files you exported from the dream save.

My recommendation is to do it in inverse order, starting from 4. Acres (which will set the correct river exit locations). So:

1. Import Acres
2. Import Terrain
3. Import Buildings (remember to set the correct Plaza X & Y coordinates from the dream main.dat file)
4. Import Items
   • Delete Luna's Bed in the plaza
   • Delete item #13218 in the plaza

Update your dream with this new island. Then after it's updated, go back to edit your main.dat and import your original files and plaza coordinates.

Do with this guide what you will, but you shouldn't be updating your own dream island with another person's island, or playing online with another person's island for that matter. I use this method mainly for playing around with the editor, and never to play online with other people.

hello there ,, thank you very much ,,

 

[Al3need44]

This guide is to make a dream island your own. From there, you can update your dream island with it and then edit your main.dat file to import all of your original files in order to recover your original island while having the new dream island.

In NHSE, open the main.dat file from your island.

1. Go to Map - Edit map - Edit field items.
   • Dump/Import - Dump all acres
2. Buildings:
   • Dump Buildings
   • Write down the Plaza X & Y location coordinates
3. Terrain:
   • Dump/Import - Dump all acres
4. Acres:
   • Dump/Import - Dump Map Acres

Now do the exact same steps for any dream island main.dat you want to have in your dream offline.

After you've exported both your island and dream island main.dat map files, open your own save main.dat and go to Map - Edit map - Edit field items. You need to import all 4 files you exported from the dream save.

My recommendation is to do it in inverse order, starting from 4. Acres (which will set the correct river exit locations). So:

1. Import Acres
2. Import Terrain
3. Import Buildings (remember to set the correct Plaza X & Y coordinates from the dream main.dat file)
4. Import Items
   • Delete Luna's Bed in the plaza
   • Delete item #13218 in the plaza

Update your dream with this new island. Then after it's updated, go back to edit your main.dat and import your original files and plaza coordinates.

Do with this guide what you will, but you shouldn't be updating your own dream island with another person's island, or playing online with another person's island for that matter. I use this method mainly for playing around with the editor, and never to play online with other people.

could u explain more for the part dream adress do u have link or guide for more details?

 

[Xjackio]

could u explain more for the part dream adress do u have link or guide for more details?

I think there is a problem here...
First you need a save or the files to modify the island.
In this case you can make your own or use program called Luna - Animal Crossing New Horizons Dream Dumper. To get a dream island saved.
Second - go to sleep and update your dream island.
Third - either restore your island with JSKV or change the map with NHSE placing the neccesary files.
And enjoy, but as far as i know you cant be offline

 

[luffyacnh]

Hello sorry if my question is stupid ... I still use NHSE map to make my treasure islands

I can't find the item code for the new wedding items (bell, doorplate, rovers photo...) can someone help me? or should you use poker now?

thank you so much

 

[vgplayer54]

Quick question regarding playing around with importing these Luna islands. Is it possible to import one of these dumped islands and somehow inject your own existing character along with their stats, village name, etc. and import your own villagers? I tried replacing the "Villager0" file with my own dumped one but, when importing that save onto the Switch, it states that the save data is corrupted.

Does anyone know if this is possible?

 

[xPoyo]

Quick question regarding playing around with importing these Luna islands. Is it possible to import one of these dumped islands and somehow inject your own existing character along with their stats, village name, etc. and import your own villagers? I tried replacing the "Villager0" file with my own dumped one but, when importing that save onto the Switch, it states that the save data is corrupted.

Does anyone know if this is possible?

You could try editing the Account Table somehow; it's located at 0x1E2290 in main.dat (decrypted of course).
overwrite the PlayerID, Name and so on from the player you're trying to replace with what is inside the dumped main.dat.

the files of the save are deepy interconnected so ofc it will not work if you just move/replace some files.

 

[TrueTexan21]

Some Chinese put 1.7G map on their forum
https://www.91wii.com/forum.php?mod=viewthread&tid=243648&highlight=%B6%AF%CE%EF

https://www.91wii.com/forum.php?mod=viewthread&tid=239792&highlight=%B6%AF%CE%EF

Keeps giving me a timed out error when trying to click on the links. Are these uploaded somewhere else as well since neither of the links are working?

 

[vgplayer54]

You could try editing the Account Table somehow; it's located at 0x1E2290 in main.dat (decrypted of course).
overwrite the PlayerID, Name and so on from the player you're trying to replace with what is inside the dumped main.dat.

the files of the save are deepy interconnected so ofc it will not work if you just move/replace some files.

Thanks so much for your response, I'll try playing around with it but ultimately my goal is to import one of these islands including their custom patterns and pro patterns. Does anyone know if this is possible? If you dump all the map and import it into another save, it works without the custom patterns... Unsure how to transfer those

 

[chworden]

Keeps giving me a timed out error when trying to click on the links. Are these uploaded somewhere else as well since neither of the links are working?

Sure they are available

 

[johnwanlam]

I recently put back beach and sea into my island. I flatten before. But the sea is not moving anymore. No waves. Anyone know how to fix it

 

[xPoyo]

Thanks so much for your response, I'll try playing around with it but ultimately my goal is to import one of these islands including their custom patterns and pro patterns. Does anyone know if this is possible? If you dump all the map and import it into another save, it works without the custom patterns... Unsure how to transfer those

Oh, if you only want the map and the designs copied onto your own save (with your existing players etc.) You can only copy those needed parts of the save using HxD or any other Hexeditor.

You can always gather that information from NHSE.

For 1.10.0 to 1.11.0:
1. copy 0x1E2720 to 0x229508
That includes: the designs; both pro and normal, island flag

2. copy 0x22E2C8 to 0x2FDCFD
That includes: Map -Acres, -Items and Design Placement. Basically everything.

Then you should check with NHSE if the player and NPC houses are placed correctly in the map and that the numbers (player 1,2 etc) checks out.

If you also want the NPCs, you should use NHSE to dump and load them into the save, because they are very complex creatures apparently.

//I edited 2. bc i forgot the design placement.

 

[TrueTexan21]

Sure they are available

Where? The links you provided above aren't working. Are there other links you are able to share?

 

[chworden]

Where? The links you provided above aren't working. Are there other links you are able to share?

https://pan.baidu.com/s/1f2kiQ1s4L4oZMLur5eN_zA
mfai

 

[Trevisan]

how do I catalog all the furniture?
I don't want arts or fossils

 

[vgplayer54]

Oh, if you only want the map and the designs copied onto your own save (with your existing players etc.) You can only copy those needed parts of the save using HxD or any other Hexeditor.

You can always gather that information from NHSE.

For 1.10.0:
1. copy 0x1E2720 to 0x229508
That includes: the designs; both pro and normal, island flag

2. copy 0x22E2C8 to 0x2FDCFC
That includes: Map -Acres, -Items and Design Placement. Basically everything.

Then you should check with NHSE if the player and NPC houses are placed correctly in the map and that the numbers (player 1,2 etc) checks out.

If you also want the NPCs, you should use NHSE to dump and load them into the save, because they are very complex creatures apparently.

Hello xPoyo, thank you so much for your information! I'm trying to give your advice a shot however I'm a little confused as I've never hex edited a save file before (well at least something this complicated, more like coins or integer values in the past). Do I open the save with the custom designs and map in the hex editor, find your listed values then paste it into a second opened hex editor with my own save in it?