Difference between revisions of "XBASES.DAT"
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| − | This file | + | This file records whether an X-COM base has been targeted for alien retaliation purposes. |
| − | + | In experimental testing, this file was found capable of converting a Retaliation mission from the type indicated from [[MISSIONS.DAT]], to a Battleship that headed straight for an X-COM base in the region. | |
| − | + | For a single base in North Africa, bytes 20-23 controlled the offset from the base where the Battleship headed straight to. This suggests a layout of 12 records of 4 bytes, one for each geographical region in canonical order. | |
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| − | + | '''0-1''': nonzero if and only if a base is detected. | |
| − | ''' | + | '''2-3''': LOC.DAT reference of base to be targeted. |
| − | + | A successful base defense sets both coordinates to 0. | |
| + | <i>Following may belong in Talk...not sure -- [[User:Zaimoni|Zaimoni]]</i> | ||
If both horizontal and vertical offset are 0, no conversion happens. | If both horizontal and vertical offset are 0, no conversion happens. | ||
| − | If both horizontal and vertical offset are 1, the resulting Battleship hovers directly over the X-COM base. No base attack occurs just from editing this file. | + | If both horizontal and vertical offset are 1 (detected, LOC.DAT index is Skyranger-1), the resulting Battleship hovers directly over the X-COM base. No base attack occurs just from editing this file. |
| − | If the horizontal offset is 1 while the vertical offset is 0, a base attack happens when the Battleship arrives. | + | If the horizontal offset is 1 while the vertical offset is 0 (detected, LOC.DAT index right), a base attack happens when the Battleship arrives. |
| − | If the horizontal offset is 0 while the vertical offset is 1, a weird buggy UFO flies in, likely missing the X-COM base. | + | If the horizontal offset is 0 while the vertical offset is 1 (not detected, but bogus LOC.DAT entry pointing to Skyranger-1), a weird buggy UFO flies in, likely missing the X-COM base. |
| − | + | The base coordinates (0x64, 0xc8ff) were also tried. The Battleship headed for at coordinates (0xcb, 0x8c), but had destination (0x47, 0x600). | |
==See Also== | ==See Also== | ||
[[Category:Game Files]] | [[Category:Game Files]] | ||
Revision as of 19:19, 22 December 2009
This file records whether an X-COM base has been targeted for alien retaliation purposes.
In experimental testing, this file was found capable of converting a Retaliation mission from the type indicated from MISSIONS.DAT, to a Battleship that headed straight for an X-COM base in the region.
For a single base in North Africa, bytes 20-23 controlled the offset from the base where the Battleship headed straight to. This suggests a layout of 12 records of 4 bytes, one for each geographical region in canonical order.
0-1: nonzero if and only if a base is detected.
2-3: LOC.DAT reference of base to be targeted.
A successful base defense sets both coordinates to 0.
Following may belong in Talk...not sure -- Zaimoni If both horizontal and vertical offset are 0, no conversion happens. If both horizontal and vertical offset are 1 (detected, LOC.DAT index is Skyranger-1), the resulting Battleship hovers directly over the X-COM base. No base attack occurs just from editing this file. If the horizontal offset is 1 while the vertical offset is 0 (detected, LOC.DAT index right), a base attack happens when the Battleship arrives. If the horizontal offset is 0 while the vertical offset is 1 (not detected, but bogus LOC.DAT entry pointing to Skyranger-1), a weird buggy UFO flies in, likely missing the X-COM base.
The base coordinates (0x64, 0xc8ff) were also tried. The Battleship headed for at coordinates (0xcb, 0x8c), but had destination (0x47, 0x600).