DAT Format (Witchaven savegame)
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The SVGN*.DAT files produced by Witchaven when saving a game are always 8,269 bytes long and store the saved game name, player structure and a few other points of data that aren't kept in the accompanying SVGM*.MAP file (which is a version 6 BUILD MAP.)
File format
! Verify signedness of potion counts, health, armor, exp
| Offset | Data type | Description | Note |
|---|---|---|---|
| 0x0000 | char[20] | Saved game name (NULL-terminated, always stores 20 bytes) | |
| 0x0014 | INT32LE | ! Player X position (ignored?) | |
| 0x0018 | INT32LE | ! Player Y position (ignored?) | |
| 0x001C | INT32LE | ! Player Z position (ignored?) | |
| 0x0020 | ... | ! ...Not filled in yet, various player data | |
| 0x0091 | INT32LE | Scare spell charges | Must have corresponding flag set to cast |
| 0x0095 | INT32LE | Night Vision spell charges | |
| 0x0099 | INT32LE | Freeze spell charges | |
| 0x009D | INT32LE | Magic Arrow spell charges | |
| 0x00A1 | INT32LE | Open Doors spell charges | |
| 0x00A5 | INT32LE | Fly spell charges | |
| 0x00A9 | INT32LE | Fireball spell charges | |
| 0x00AD | INT32LE | Nuke spell charges | |
| ... | ... | ! not filled in yet | ... |
| 0x0119 | INT32LE | Scare scroll flag | 1 = has this spell |
| 0x011D | INT32LE | Night Vision scroll flag | |
| 0x0121 | INT32LE | Freeze scroll flag | |
| 0x0125 | INT32LE | Magic Arrow scroll flag | |
| 0x0129 | INT32LE | Open Doors scroll flag | |
| 0x012D | INT32LE | Fly scroll flag | |
| 0x0131 | INT32LE | Fireball scroll flag | |
| 0x0135 | INT32LE | Nuke scroll flag | |
| 0x0139 | INT32LE | Count of Health potions in inventory | |
| 0x013D | INT32LE | Count of Strength potions in inventory | |
| 0x0141 | INT32LE | Count of Cure Poison potions in inventory | |
| 0x0145 | INT32LE | Count of Resist Fire potions in inventory | |
| 0x0149 | INT32LE | Count of Invisibility potions in inventory | |
| 0x014D | INT32LE | Experience level | |
| 0x0151 | INT32LE | Experience points | |
| 0x0155 | INT32LE | Current health | |
| 0x0159 | INT32LE | Maximum health | |
| 0x015D | INT32LE | Armor points | |
| 0x0161 | INT32LE | Armor type | 1 = leather, 2 = chainmail, 3 = plate |
| 0x0165 | UINT8 | Standing on something flag | ! should always be 1? |
| 0x0166 | INT32LE | fallz | ! should always be 0? |
| ... | ... | ... | ! ...not filled in yet (mostly data for non-player elements?) |
| 0x2044 | UINT8 | ! Automapping? Unsure of the purpose as hex-editing it didn't cause a visible result. | |
| 0x2045 | UINT16LE | Durability points of player's shield | |
| 0x2047 | UINT16LE | How many game cycles of ornate horn (vampire time) powerup remain | |
| 0x2049 | UINT16LE | Poison flag | 1 = player is poisoned |
| 0x204B | UINT16LE | How many game cycles to wait for next poison damage |
Notes
- Player position is probably stored via a dummy sprite in the SVGM*.MAP file, and ignored here. ! Verify.
- There is a bug in the game which sometimes causes the vampire time powerup to be given in a saved game when it should not be. The exact cause of this is not yet known but may be a result of improperly forcing a 32-bit value into a 16-bit one. ! Verify.
Source
The Witchaven source code and WHED program from L&S Publishing were referenced.