BASE.DAT

2022-12-22T17:34:57Z

Nsandersen: Phantom facility completion bug.

__TOC__
==UFO Structure==
''Ripped from [http://www.stonepool.com/xcom/hacking/index.html Hatfarm / Chris Voss's] great pages

'''BASE.DAT:''' Each entry is 292 Bytes long

'''00-0E:''' Base Name, pretty obvious

'''0F:''' Presumably the Null character if the Base Name uses all 15 characters

'''10:''' Base's short range detection capability.

'''12:''' Base's long range detection capability.

'''14:''' Base's hyperwave detection capability.

'''11, 13, 15:''' These are probably the high bytes for the Short, Long, and Hyper-wave detections respectively. Should always be 0 as a value of 100 (hex: 64 00) is perfect detection.

Logical values for the detection capabilities:

''10 short, 0 long:'' This base has small radar(s) only.

''20 short, 20 long:'' This base has large radar(s) only.

''30 short, 20 long:'' This base has small and large radar(s).

''100 hyperwave:'' This base has a hyperwave decoder(s).

The radar values can be set to 100 for perfect short range detection (presumably -- it definitely makes UFOs appear more often), but these reset to the correct values any time you complete a build in that base.

{| width = "35%" style = "border: 1px solid; border-collapse:collapse; text-align:center"
|+ Table 1: Radar Ability Combinations
|- style = "font-size:larger; font-weight: bold; border-bottom: 1px black solid; background: gray; color:white;"
| Radar Module / Scan Type || Short || Long || Hyperwave
|- style = ""
| Small Radar || 10 || 0 || 0
|-
| Large Radar || 20 || 20 || 0
|-
| Hyperwave || 0 || 0 || 100
|- colspan = "4" style = "border-top: 1px dotted; font-wight: bold;"
|colspan=4| '''Radar Combinations'''
|- style = "background: #EEE;"
| Sm + Sm || 10 || 0 || 0
|-
| Sm + Lg || 30 || 20 || 0
|-style = "background: #EEE;"
| Sm + Hyp || 10 || 0 || 100
|-
| Lg + Lg || 20 || 20 || 0
|-style = "background: #EEE;"
| Lg + Hyp || 20 || 20 || 100
|-
| Hyp + Hyp || 0 || 0 || 100
|-style = "background: #EEE;"
| Sm + Lg + Hyp || 30 || 20 || 100
|}

'''16-39:''' The next offsets are arranged so they're easier to understand. They are for facilities in the base:

{| {{stdTable}} border="1" cellpadding="5" style="border: 0px solid; text-align: center" width="210"
|-
| 16 || 17 || 18 || 19 || 1A || 1B
|-
| 1C || 1D || 1E || 1F || 20 || 21
|-
| 22 || 23 || 24 || 25 || 26 || 27
|-
| 28 || 29 || 2A || 2B || 2C || 2D
|-
| 2E || 2F || 30 || 31 || 32 || 33
|-
| 34 || 35 || 36 || 37 || 38 || 39
|}

The possible values are as follows:
00 - Access Lift
01 - Living Quarters
02 - Laboratory
03 - Workshop
04 - Small Radar System
05 - Large Radar System
06 - Missile Defense
07 - General Stores
08 - Alien Containment
09 - Laser Defense
0A - Plasma Defense
0B - Fusion Ball Defense
0C - Grav Shield
0D - Mind Shield
0E - Psionic Laboratory
0F - Hyper-wave Decoder
10 - Hangar (Top Left)
11 - Hangar (Top Right)
12 - Hangar (Bottom Left)
13 - Hangar (Bottom Right)
FF - Empty

'''3A-5D:''' The next offsets represent the days until a facility is completed. They're set up the same way:

{| {{stdTable}} border="1" cellpadding="5" style="border: 0px solid; text-align: center" width="210"
|-
| 3A || 3B || 3C || 3D || 3E || 3F
|-
| 40 || 41 || 42 || 43 || 44 || 45
|-
| 46 || 47 || 48 || 49 || 4A || 4B
|-
| 4C || 4D || 4E || 4F || 50 || 51
|-
| 52 || 53 || 54 || 55 || 56 || 57
|-
| 58 || 59 || 5A || 5B || 5C || 5D
|}

Possible values are 00 to FF. Empty spaces must have a FF value in their corresponding offset.

If you destroy a facility or one is destroyed during a base defense mission, the value remains 00. This causes the paying for dirt bug, resulting in an upkeep of 80k per dirt square. Simply change the value of the destroyed/dismantled facility to FF to eliminate the bug.

If a facility is built and then dismantled, and nothing is built there afterwards, the game may crash showing an UFOpaedia entry when the day count reaches zero.

The following are the rest of the offsets I know. There are holes in the numbering but I have no idea what they are. With the exception of '''scientists and technicians''', which are '''one byte each''', all values are 2-byte signed little-endian values (-32,768 to +32,767). Example: 05 00 should be read as 0005; FE FF should be read as FFFE (-2).

It should be noted that despite the range of values a two-byte signed field gives you, due to a [[Known_Bugs#Storage_Limit|known issue]], you cannot have more than 9,999 units of a given item in storage at any given base, regardless of what item it is.

Here's the info for bytes '''5E-11E'''. The Record Number (Rec#) is used for e.g. [[PRODUCT.DAT]] and [[RESEARCH.DAT]]:

Hex Dec Rec# Item
---- --- ---- ----
'''005E''' 94 - Engineer
'''005F''' 95 - Scientist
'''0060''' 96 0 Stingray Launcher
'''0062''' 98 1 Avalanche Launcher
'''0064''' 100 2 Cannon
'''0066''' 102 3 Fusion Ball Launcher
'''0068''' 104 4 Laser Cannon
'''006A''' 106 5 Plasma Beam
'''006C''' 108 6 Stingray Missile
'''006E''' 110 7 Avalanche Missile
'''0070''' 112 8 Cannon Rounds
'''0072''' 114 9 Fusion Balls
'''0074''' 116 10 Tank/Cannon
'''0076''' 118 11 Tank/Rocket Launcher
'''0078''' 120 12 Tank/Laser Cannon
'''007A''' 122 13 Hovertank/Plasma
'''007C''' 124 14 Hovertank/Launcher
'''007E''' 126 15 Pistol
'''0080''' 128 16 Pistol Clip
'''0082''' 130 17 Rifle
'''0084''' 132 18 Rifle Clip
'''0086''' 134 19 Heavy Cannon
'''0088''' 136 20 HC-AP Ammo
'''008A''' 138 21 HC-HE Ammo
'''008C''' 140 22 HC-IN Ammo
'''008E''' 142 23 Auto Cannon
'''0090''' 144 24 AC-AP Ammo
'''0092''' 146 25 AC-HE Ammo
'''0094''' 148 26 AC-IN Ammo
'''0096''' 150 27 Rocket Launcher
'''0098''' 152 28 Small Rocket
'''009A''' 154 29 Large Rocket
'''009C''' 156 30 Incendiary Rocket
'''009E''' 158 31 Laser Pistol
'''00A0''' 160 32 Laser Rifle
'''00A2''' 162 33 Heavy Laser
'''00A4''' 164 34 Grenade
'''00A6''' 166 35 Smoke Grenade
'''00A8''' 168 36 Proximity Grenade
'''00AA''' 170 37 High Explosive
'''00AC''' 172 38 Motion Scanner
'''00AE''' 174 39 Medi-Kit
'''00B0''' 176 40 Psi-Amp
'''00B2''' 178 41 Stun Rod
'''00B4''' 180 42 Electro Flare
'''00B6''' 182 43 empty
'''00B8''' 184 44 empty
'''00BA''' 186 45 empty
'''00BC''' 188 46 CORPSE
'''00BE''' 190 47 CORPSE & ARMOUR
'''00C0''' 192 48 CORPSE & POWER SUIT
'''00C2''' 194 49 Heavy Plasma
'''00C4''' 196 50 Heavy Plasma Clip
'''00C6''' 198 51 Plasma Rifle
'''00C8''' 200 52 Plasma Rifle Clip
'''00CA''' 202 53 Plasma Pistol
'''00CC''' 204 54 Plasma Pistol Clip
'''00CE''' 206 55 Blaster Launcher
'''00D0''' 208 56 Blaster Bomb
'''00D2''' 210 57 Small Launcher
'''00D4''' 212 58 Stun Bomb
'''00D6''' 214 59 Alien Grenade
'''00D8''' 216 60 Elerium-115
'''00DA''' 218 61 Mind Probe
'''00DC''' 220 62 >>UNDEFINED <<
'''00DE''' 222 63 >> empty <<
'''00E0''' 224 64 >> empty <<
'''00E2''' 226 65 Sectoid Corpse
'''00E4''' 228 66 Snakeman Corpse
'''00E6''' 230 67 Ethereal Corpse
'''00E8''' 232 68 Muton Corpse
'''00EA''' 234 69 Floater Corpse
'''00EC''' 236 70 Celatid Corpse
'''00EE''' 238 71 Silacoid Corpse
'''00F0''' 240 72 Chryssalid Corpse
'''00F2''' 242 73 Reaper Corpse
'''00F4''' 244 74 Sectopod Corpse
'''00F6''' 246 75 Cyberdisc Corpse
'''00F8''' 248 76 Hovertank Corpse
'''00FA''' 250 77 Tank Corpse
'''00FC''' 252 78 Male Civilian Corpse
'''00FE''' 254 79 Female Civilian Corpse
'''0100''' 256 80 UFO Power Source
'''0102''' 258 81 UFO Navigation
'''0104''' 260 82 UFO Construction
'''0106''' 262 83 Alien Food
'''0108''' 264 84 Alien Reproduction
'''010A''' 266 85 Alien Entertainment
'''010C''' 268 86 Alien Surgery
'''010E''' 270 87 Examination Room
'''0110''' 272 88 Alien Alloys
'''0112''' 274 89 Alien Habitat
'''0114''' 276 90 Personal Armour
'''0116''' 278 91 Power Suit
'''0118''' 280 92 Flying Suit
'''011A''' 282 93 HWP Cannon Shell
'''011C''' 284 94 HWP Rockets
'''011E''' 286 95 HWP Fusion Bomb

'''0120:''' Active/Inactive Base. Inactive entries have a value of 1. Active entries have a value of 0. Creating a new base will overwrite the first inactive entry. If a base is dismantled, the only change to the record is this value so it is possible to restore a dismantled base (Access lift removed) by restoring this value to 0. --[[User:SeulDragon|SeulDragon]] 12:24, 11 July 2008 (PDT)

'''0121~0123:''' 0120 is stored as an integer. These fields are the unused portion of that integer.

==See Also==
* [[ASTORE.DAT]] - Information on captured aliens at bases
* [[BPROD.DAT]] - Information on what bases are producing
* [[CRAFT.DAT]] - Information on crafts (both X-Com and Alien)
* [[FACIL.DAT]] - Information on the facilities you can build in bases
* [[LOC.DAT]] - Location Data for bases and crafts
* [[PROJECT.DAT]] - Information on current research
* [[SOLDIER.DAT]] - Information on soldiers at bases
* [[TRANSFER.DAT]] - Information on item/personnel being transferred to/from bases
* [[BASE.DAT (TFTD)]] - Terror From The Deep's base file
* [[Saved Game Files]]
[[Category:Game Files]]
[[Category:Enemy Unknown/UFO Defense]]

UFOpaedia - User contributions [en]

BASE.DAT