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Reverse Wherigo - can I use one cartridge for many scenarios?


GeoLog81

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I've played one reverse Wherigo in Nürnberg. When I was in Mainz, I've tried to use the cartridge to play the reverse Wherigo there, but my player hasn't accepted the code, without any error message.

 

Do I need to download new cartridge for every reverse Wherigo, or does it function so, that I should be able to use single scenario for all of them? If the first is true, why do I need to enter the 3-line code at start? I don't get the idea yet, how it exactly works...

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No, the cartridge is the same everywhere, no need to load anything new, the only difference is the code you have to enter.

 

In Mainz, the code was formatted like:

 

0051DE

AB2206

068C68

 

The letters a,b,c,d,and e have to be found on a plaque im Mainz and have to be replaced with numbers.

 

2de27094-5ee1-4346-8fad-79d415ce453e_l.jpg

 

This is from the listing:

To start you will have to type this code into your player:

(change the Letters into numbers)

 

MB

Edited by Mausebiber
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I've played one reverse Wherigo in Nürnberg. When I was in Mainz, I've tried to use the cartridge to play the reverse Wherigo there, but my player hasn't accepted the code, without any error message.

 

Do I need to download new cartridge for every reverse Wherigo, or does it function so, that I should be able to use single scenario for all of them? If the first is true, why do I need to enter the 3-line code at start? I don't get the idea yet, how it exactly works...

The cartridge is the same but the 3 line code gives the coordinates for the place , the codes are different for different places.

There seems to be a new version of the cartridge so you have to deleete the old in you phone and load a new version

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This is from the listing:

To start you will have to type this code into your player:

(change the Letters into numbers)

 

MB

 

Thanks

I've got no pictures on my Garmin, and I haven't understand the listing (not even reading it carefully) so it explains everything.

 

The 'numbers' I've typed were simply invalid...

 

And just a side question, does those numbers activate some download, so for example the spoiler is downloaded? I haven't ever made my own reverse Wherigo, is there a wiki site somewhere? Or I should just call 'create' and follow the instructions?

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You download the cartridge from the Wherigo site: http://www.Wherigo.com/cartridge/details.aspx?CGUID=dcdcd2ff-c171-4487-93bc-678f6d03ac4f

Now you can even see, that there is only one reverse Wherigo for all cache.

 

You load the cartridge to your GPS (before O600) into the folder Wherigo.

From the menu, you select the cartridge and just follow the instructions about language and other settings until the GPS is asking you to enter the three codes.

Now the distance to the final destination will be shown, not more. Let's say, 500 yards. Now you start walking into one direction, let's say 100yards. You run the cartridge again and probably you get 400 yards. perfect, the number has become smaller, you are walking into the right direction. If the number is larger, you are walking into the opposite direction, turn around :o) If the number is anything in between 400 and 600, you probably walking an angle to or from the final.

Goal is, to check as less as possible to find the final :o)

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And just a side question, does those numbers activate some download, so for example the spoiler is downloaded?

Nothing additional is downloaded. I believe the three numbers you enter into the cartridge are put into a mathematical operation to create the coordinates. The same thing when you create your own, just the opposite way.

 

To create your own, you just have to load the cartridge and stand where you want your final location to be. (I think you have to put in a password as well, which you get for completing a reverse Wherigo game.) The cartridge will then give you the three numbers you should put on your listing.

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To create your own, you just have to load the cartridge and stand where you want your final location to be. (I think you have to put in a password as well, which you get for completing a reverse Wherigo game.) The cartridge will then give you the three numbers you should put on your listing.

 

The three numbers are input into an incredibly poorly-written function that turns them into coordinates. Reverse-engineering said function is quite easy, as lua is easily disassembled.

 

To me, these cartridges don't represent the spirit of wherigos, but they seem to be very popular.

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The three numbers are input into an incredibly poorly-written function that turns them into coordinates. Reverse-engineering said function is quite easy, as lua is easily disassembled.

 

To me, these cartridges don't represent the spirit of wherigos, but they seem to be very popular.

If you feel that way, have you offered to help the author?

 

I think they're popular because it's something people can't do with any other cache type. It's also easy to set up because the cartridge is already written.

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The three numbers are input into an incredibly poorly-written function that turns them into coordinates. Reverse-engineering said function is quite easy, as lua is easily disassembled.

If you feel that way, have you offered to help the author?

 

I don't understand. I think having a single cartridge for "anywhere" wherigos is lame. Why would I encourage it?

 

The function works. The algorithm is not bad; it encodes 15 digits in 15 digits. But the cartridges are trivially hackable. I don't know of any way around that for the functionality represented.

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I don't understand. I think having a single cartridge for "anywhere" wherigos is lame. Why would I encourage it?
It's difficult for some people to create a more involved cartridge. This brings Wherigo to more people. From an administration perspective, I like this because it cuts down on the duplication on the listing site. Just imagine searching for a play anywhere cartridge and seeing a hundred with the same name--and you can't filter this type by coordinates.

 

The function works. The algorithm is not bad; it encodes 15 digits in 15 digits. But the cartridges are trivially hackable. I don't know of any way around that for the functionality represented.
It's not decipherable by 99.9% of people. That's good enough for now. The easiest way to hack cartridges, though, is just to ask someone where the final is. Later on, the easiest thing to do to prevent cartridges from being hacked is to keep the cartridge file itself out of people's hands by only allowing it to be requested by and downloaded to a player app.
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