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  #31  
Old 10-06-2007, 07:34 AM
uncommon
Sarnak
 
Join Date: Feb 2002
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Nice, thank you KLS.

What are version 4 EQGs btw ? PoR zones and stuff like this ?
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  #32  
Old 10-06-2007, 08:15 AM
KLS
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commonlands, southro, northro, newest nektulos are examples. Not sure PoR are v4 I suspect they're v3 and everything past v4.
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  #33  
Old 10-06-2007, 12:01 PM
gernblan
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Join Date: Aug 2006
Posts: 394
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Thank you KLS, looking forward to it!

That along with some sort of brute force script should help this situation a lot.

Like I said, I am willing to spend the time brute forcing these if someone would be kind enough to drum up a script to do so. I'm just not "good enough" to make one that works... I've been trying since I first mentioned it.
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  #34  
Old 10-06-2007, 12:03 PM
gernblan
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Quote:
Originally Posted by KLS View Post
Dreadspire is actually a version 3 eqg, while the azone code was written to read version 2.. and it doesn't perfectly as shown =(

The version 3 eqgs are actually much more well behaved too sadly, but azone currently wont read them properly as the vertex data structure has changed from 32 bytes to 44 bytes in that version. Can get azone to support them soon though, I've been able to render them properly so I know I got the structure down.
Is there a way to add v3 (and v4) support to azone, even if they still require manual offset hacking?

I'm willing to spend the time if I know that it's at all possible trying to find thse offsets.
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  #35  
Old 04-11-2008, 07:22 PM
Derision
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Join Date: Feb 2004
Location: UK
Posts: 1,540
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Quote:
Originally Posted by KLS View Post
Should probably look for a more general solution, for version 2 EQGs but it's frustrating..
I don't know whether the Dev's worked out the formula for calculating the offsets for version 2 EQGs, but I searched and couldn't find anything relevant after this thread.

I've been messing about trying to get OpenEQ to load version 2 EQGs, and came across this old thread:

http://www.eqemulator.net/forums/arc...p/t-21615.html

Based on that, I knocked together the following bit of Python to calculate the offsets (excuse my Python, but I'm new at it ):

Code:
import struct, posixfile, socket, zlib, pdb, sys



for eqgfilename in ["broodlands", "guildhall", "guildlobby", "harbingers", "stillmoona", "stillmoonb", "thenest", "thundercrest"]:
    filenames = []
    files = []
 
    eqgfile = file(eqgfilename + '.eqg', 'rb')

    block = eqgfile.read(12)
    (offset, magic, unknown) = struct.unpack('L4sL', block)


    eqgfile.seek(offset, posixfile.SEEK_SET)

    block = eqgfile.read(4)

    dir_count = struct.unpack('I', block)



    for i in range(0, dir_count[0]):
        block = eqgfile.read(12)
        (crc, fileoffset, filesize) = struct.unpack('LLL', block)


        if crc == 0x61580AC9:

            CurrentPos = eqgfile.tell()
	    eqgfile.seek(fileoffset, posixfile.SEEK_SET)
	    InflatedLength = 0
	    uncompressed = ''
   	    while InflatedLength < filesize:
	        block = eqgfile.read(8)
	        (deflen, inflen) = struct.unpack('LL', block)

	        block = eqgfile.read(deflen)
	        uncompressed = uncompressed + zlib.decompress(block)
	        InflatedLength = InflatedLength + inflen

	    eqgfile.seek(CurrentPos, posixfile.SEEK_SET)
            fncount = struct.unpack('L', uncompressed[0:4])	

	    pos = 4
	    for j in range(0, fncount[0]):
	        fnlen = struct.unpack('L', uncompressed[pos:pos+4])

	        fmt = str(fnlen[0]) + 's'
	        fname = struct.unpack(fmt, uncompressed[pos+4:pos+4+fnlen[0]])
                fname = fname[0].strip('\x00')

                if fname[len(fname)-4:len(fname)] == '.ter':
                    wantedfile = fname

	        filenames.append(fname)
	        pos = pos + 4 + fnlen[0]
        else:
            files.append((eqgfile.tell() - 12, fileoffset))


    for i in range(dir_count[0] - 2, 0, -1):
        for j in range(0, i):

            if files[j][1] > files[j+1][1]:
                tmp = files[j]
                files[j] = files[j+1]
                files[j+1] = tmp



    for a in range(0, dir_count[0]-1):
        if filenames[a] == wantedfile:

	    eqgfile.seek(files[a][0], posixfile.SEEK_SET)
            block = eqgfile.read(12)
            (crc, fileoffset, filesize) = struct.unpack('LLL', block)

	    eqgfile.seek(files[a][1], posixfile.SEEK_SET)
	    break

    uncompressed = ''
    inf = 0

    while inf < filesize:
        block = eqgfile.read(8)
        (deflen, inflen) = struct.unpack('LL', block)

        block = eqgfile.read(deflen)
        uncompressed = uncompressed + zlib.decompress(block)
        inf = inf + inflen

    (magic, version, list_len, obj_count, vert_count, tri_count) = struct.unpack('4sLLLLL', uncompressed[0:24])


    ter_tmp = list_len
    pos = 24
    while pos < ter_tmp:
        strlen = 0 
        while uncompressed[pos+strlen] != chr(0):
            strlen = strlen + 1
        fmt = str(strlen) + 's'
        (strvar) = struct.unpack(fmt, uncompressed[pos:pos+strlen])
        pos = pos + strlen+1

        strlen = 0 
        while uncompressed[pos+strlen] != chr(0):
            strlen = strlen + 1
        fmt = str(strlen) + 's'
        (strval) = struct.unpack(fmt, uncompressed[pos:pos+strlen])
        pos = pos + strlen+1



    pos = 24 + list_len
  
    for b in range(0, obj_count):

        (index, name_offset, another_name_offset, property_count) = struct.unpack('LLLL', uncompressed[pos: pos+16])

        pos = pos + 16
        for a in range(0, property_count):
            pos = pos + 12

    print "Offset for EQG Zone %-20s (TER: %-22s) is %8X" % (eqgfilename, wantedfile, pos)
For the EQG zones hardcoded in the currently downloadable version of azone, it spits out the same offsets:

Code:
Offset for EQG Zone broodlands           (TER: ter_broodlands.ter    ) is    382B7
Offset for EQG Zone guildhall            (TER: ter_guildhall.ter     ) is     307E
Offset for EQG Zone guildlobby           (TER: ter_guildlobby.ter    ) is     41A3
Offset for EQG Zone harbingers           (TER: ter_harbingers.ter    ) is     1178
Offset for EQG Zone stillmoona           (TER: ter_main.ter          ) is    71948
Offset for EQG Zone stillmoonb           (TER: ter_easterntemple.ter ) is     E33E
Offset for EQG Zone thenest              (TER: ter_abyss01.ter       ) is    CA244
Offset for EQG Zone thundercrest         (TER: ter_stormtower01.ter  ) is    6222C
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