PURCHASE.DAT

General Notes

PURCHASE.DAT is found in the savegame directory (GAME_1 through GAME_10) and contains both buying and selling prices for all items. It also contains the value for delivery time (even for manufactured and alien items) and a flag for whether or not an item may purchased on the Purchase/Recruit Screen.

There are 91 entries, each of which is 20 bytes long, for a total of 1,820 bytes long.

Items are divided into three general categories: Personnel, Crafts, and all other items. Of the 91 entries, 3 are for Personnel, 5 for Crafts, and 83 for other items, including 11 for alien corpses (5 for the major races + 6 for the terrorists they bring along), and 3 entries that the game doesn't seem to use (UFO Construction, Alien Reproduction, and Alien Habitat.)

The order of items in this file is generally the same as on the Purchase/Recruit, Sell/Sack, or Transfer Screens. Each entry also contains a value that generally conforms to the sort order on the Base Information->Stores screen (which is slightly different from the sort order of the other screens.) See Notes on Sorting at the end of this article for more details.

Values are presented according to offset (0 to 19) in bold.

Structure

0 (1 Byte): Item Category:

  0 General Item...basically, anything not Personnel or Crafts
  1 X-Com Craft
  2 Soldier
  3 Scientist
  4 Engineer

Entry Index

# Item 0 Soldier 1 Scientist 2 Engineer 3 Skyranger 4 Lightning 5 Avenger 6 Interceptor 7 Firestorm 8 Stingray Launcher 9 Avalanche Launcher 10 Cannon 11 Fusion Ball Launcher 12 Laser Cannon 13 Plasma Beam 14 Stingray Missile 15 Avalanche Missile 16 Cannon Rounds[x50] 17 Fusion Ball 18 Tank/Cannon 19 HWP Cannon Shells 20 Tank/Rocket 21 HWP Rockets 22 Tank/Laser Cannon 23 Hovertank/Plasma 24 Hovertank/Launcher 25 HWP Fusion Bomb 26 Pistol 27 Pistol Clip 28 Rifle 29 Rifle Clip

# Item 30 Heavy Cannon 31 HC-AP Ammo 32 HC-HE Ammo 33 HC-I Ammo 34 Auto-Cannon 35 AC-AP Ammo 36 AC-HE Ammo 37 AC-I Ammo 38 Rocket Launcher 39 Small Rocket 40 Large Rocket 41 Incindiary Rocket 42 Laser Pistol 43 Laser Rifle 44 Heavy Laser 45 Grenade 46 Smoke Grenade 47 Proximity Grenade 48 High Explosive 49 Motion Scanner 50 Medi-Kit 51 Psi-Amp 52 Stun Rod 53 Electro-flare 54 Elerium-115 55 Heavy Plasma 56 Heavy Plasma Clip 57 Plasma Rifle 58 Plasma Rifle Clip 59 Plasma Pistol

# Item 60 Plasma Pistol Clip 61 Blaster Launcher 62 Blaster Bomb 63 Small Launcher 64 Stun Bomb 65 Alien Grenade 66 Mind Probe 67 Sectoid Corpse 68 Snakeman Corpse 69 Ethereal Corpse 70 Muton Corpse 71 Floater Corpse 72 Celatid Corpse 73 Silacoid Corpse 74 Chryssalid Corpse 75 Reaper Corpse 76 Sectopod Corpse 77 Cyberdisk Corpse 78 UFO Power Source 79 UFO Navigation 80 UFO Construction 81 Alien Food 82 Alien Reproduction 83 Alien Entertainment 84 Alien Surgery 85 Examination Room 86 Alien Alloys 87 Alien Habitat 88 Personal Armour 89 Power Suit

# Item 90 Flying Suit

Notes on Sorting

NOTE: Based on some hacking of GEOSCAPE.EXE, the 'sort' value appears to be an index to arrays. See User:Pi Masta for more details.

1) For all screens, the order of the manufactured craft weapons is reversed (i.e. they are listed as Plasma Beam, Laser Cannon, Fusion Ball Launcher in this file, and follow that order for the 'Sort Order' (offset 1) value as well, but are displayed as Fusion Ball Launcher, Laser Cannon, Plasma Beam on the screens)

2) Except as noted in 1), above, the Purchase/Recruit screen displays items in the order of their entries. If you hack Offset 18 so everything is purchaseable, they will display in that order.

3) On the Transfer and Sell/Sack screens, all soldiers not currently assigned to crafts will list individually first, then all crafts (but not neccessarily by the order listed in this file, e.g. in my test file, Interceptor-1 listed before Lightning-2,) then scientists and engineers, then the rest of the items will sort in the order of their entries (except as noted in 1), above)

4) Finally, on the Base Information->Stores screen, only General Items (i.e. anything for which Offset 0 = 0) will display, sorted according to the Sort Order (Offset 1) value (except as noted in 1), above.) This basically means that E-115, which normally sorts between Electro-flare and Heavy Plasma, will instead sort to between Alien Grenade and Mind Probe, and that HWP Ammo sorts to the end of the list instead of immediately following its HWP entry.

See Also

• BASE.DAT - Items bases have in stores
• OBDATA.DAT - Stats on most of the items listed here
• TRANSFER.DAT - Items being transfered to bases including purchased items
• Saved Game Files