I have just been investigating EAW_TTD.DAT files to finalise my editor for the 1.28F/TM2 system.
One of its features will be to convert an older EAW_TTD.DAT file to the new Geawttd.dat format that 1.28F uses.

For those who may be unaware, these files contain the data that the exe uses to place things like trees, farms and houses on tiles.
There are four versions of the file:
The original (1.2) which worked on the basis of here being 59 tiles and a maximum of 64 objects per tile.
It has a file length of 303260 bytes.
This is calculated from there being 59 sections (1 for every tile), and each section having a 20 byte header followed by 80 bytes of data for each of the 64 possible objects.
64*80=5120
Add the 20 byte header 5140
Multiply by 59 = 303260

This was extended in the 1.28 series to one with 64 tiles and a length of 328960 bytes.
Later we switched to a maximum of 128 objects per tile and a length of 656640 bytes.
There is also a 59 tile version upgraded to 128 objects per tile and a length of 605340 bytes.
These are the only possible correct lengths.

Checking for files to convert I looked in the heap of scenarios on my external HDD which have EAW_TTD.DAT files and it is amazing how many of them have file lengths which are different from those four. This indicates that they are faulty in some way.
It is probably due to the vagaries of hex editing!

Jel

And if you have 255 tiles?

Bloody bodgers!



Moggy DCM

255 tiles possible with TM2/1.28F but it would use the Geawttd2.dat file which has the number of tiles in the header

Moggy- it takes one to know one- you and VBH are in the same boat LOL

I think you'll find that boat is very crouded, Tony, as HEX editing, used to be the norm for everything.

I LOVE hexediting.

Doesn't everyone think in base 16?

32 bit only here!

Waiting for that TTD editor Jel. Much obliged





That's what I do ....... except the thinking part.





After me ... Pull! ... Pull! ... Pull!

Moggy DCM

Just here to set things straight.

The FXEXE for Pacific Tide III was allready modified around 2005 to allow all 64 tiles in the EAW.TM and the EAW_TTD.DAT and they have been an integral part of the Launchpad's 'The Final Cut' ever since (see sticky thread about online_flying).

So Moggy you'd better start rowing m8,

VonBeerhofen

Hello VB - wasn't aware I was talking to, at, or particularly about you. You just seem to have got mentioned somewhere in the thread.

I remain very skeptical about my own efforts, which at their highest certainly are glorified bodging.

If any of that works for players then I'm pleased.

Otherwise I'm quite happy to be in the bodgers boat pulling at those oars.

Have a good life.

Moggy DCM

Don't worry Moggy, at least we are all in the same boat, and steering a good course.