# FLAGS #######################################################################

### Endpoint Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Solid`        | `0`  |
| `SameHeight`   | `1`  |
| `Transparent`  | `2`  |

- `Solid` means the point belongs to a solid line.
- `SameHeight` means all polygons with this point have the same height, relative
  to the point's lines
- `Transparent` means the point does not belong to an opaque line.

### Line Flags ###

| Name           | Bit  |
| ----           | ---  |
| `TransSide`    | `9`  |
| `ElevVar`      | `10` |
| `Elevation`    | `11` |
| `Landscape`    | `12` |
| `Transparent`  | `13` |
| `Solid`        | `14` |

- `TransSide` means the line has a transparent side.
- `ElevVar` means polygons on both sides do not have the same heights.
- `Elevation` means there is a differing height between this line's polygons.
- `Landscape` means this line shows only sky.
- `Transparent` means both sides are see-through.
- `Solid` means the line cannot be walked through.

### Side Flags ###

If `DataVersion` is `DataM1`, then `ItemOpt` must be set by the client.

| Name           | Bit  |
| ----           | ---  |
| `Status`       | `0`  |
| `Panel`        | `1`  |
| `Repair`       | `2`  |
| `ItemUse`      | `3`  |
| `Lighted`      | `4`  |
| `CanDestroy`   | `5`  |
| `HitOnly`      | `6`  |
| `ItemOpt`      | `7`  |

- `Status` means the panel is switched already.
- `Panel` means the side is a control panel.
- `Repair` means the panel must be switched for Repair.
- `ItemUse` means the panel uses an item (for scripts, unused otherwise.)
- `Lighted` means the panel must be 3/4ths or more lit up to be used.
- `CanDestroy` makes projectiles toggle and disable this panel.
- `HitOnly` means the panel can only be hit by projectiles.
- `ItemOpt` means the item is optional for this panel (for scripts.)

### Polygon Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Detached`     | `14` |

### Map Object Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Invisible`    | `0`  |
| `Ceiling`      | `1`  |
| `Blind`        | `2`  |
| `Deaf`         | `3`  |
| `Floating`     | `4`  |
| `NetOnly`      | `5`  |

- `Invisible` makes the object initially invisible (warps in.)
- `Ceiling` reverses the Z coordinate (from the ceiling.)
- `Blind` makes the object unable to be activated by sight.
- `Deaf` makes the object unable to be activated by sound.
- `NetOnly` makes the object only show up in net-games (items only.)

### Mission Flags ###

| Name            | Bit  |
| ----            | ---  |
| `Extermination` | `0`  |
| `Exploration`   | `1`  |
| `Retrieval`     | `2`  |
| `Repair`        | `3`  |
| `Rescue`        | `4`  |
| `M1Exploration` | `5`  |
| `M1Rescue`      | `6`  |
| `M1Repair`      | `7`  |

- `Extermination` means you must kill all monsters on the map, with an error
  threshold of 8 alien enemies maximum.
- `Exploration` means you must explore marked polygons.
- `Retrieval` means you must grab marked items.
- `Repair` means you must flip marked switches.
- `Rescue` means you must keep 50% of BoBs alive.
- `M1Exploration` is the same as `Exploration` except you only need to look at
  each marked polygon, not actually enter them.
- `M1Rescue` is the same as `Rescue`. Since this is an internal flag, all it
  actually does is change which monster class it checks.
- `M1Repair` is the same as `Repair`, except it only requires that the last
  switch (by side index) be switched to succeed.

### Environment Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Vacuum`       | `0`  |
| `Magnetic`     | `1`  |
| `Rebellion`    | `2`  |
| `LowGrav`      | `3`  |
| `M1Glue`       | `4`  |
| `LavaFloor`    | `5`  |
| `Rebellion2`   | `6`  |
| `Music`        | `7`  |
| `TermPause`    | `8`  |
| `M1Monster`    | `9`  |
| `M1Weps`       | `10` |

- `Vacuum` makes most weapons not work and oxygen deplete.
- `Magnetic` fucks up the motion sensor.
- `Rebellion` makes S'pht friendly and strips items and health.
- `LowGrav` lowers gravity.
- `M1Glue` makes glue handle like Marathon 1.
- `LavaFloor` makes the floor damage you.
- `Rebellion2` is the same as `Rebellion` but does not strip items/health.
- `Music` makes the level have music.
- `TermPause` makes terminals stop time (in Solo only.)
- `M1Monster` sets monster activation limits to Marathon 1's.
- `M1Weps` changes weapon pickups on Total Carnage and makes grenades low
  gravity.

### Light Flags ###

| Name           | Bit  |
| ----           | ---  |
| `InitActive`   | `0`  |
| `SlaveValue`   | `1`  |
| `Stateless`    | `2`  |

### Entry Point Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Solo`         | `0`  |
| `CoOp`         | `1`  |
| `Carnage`      | `2`  |
| `KTMWTB`       | `3`  |
| `KOTH`         | `4`  |
| `Defense`      | `5`  |
| `Rugby`        | `6`  |
| `CTF`          | `7`  |

- `KTMWTB` is Kill The Man With The Ball.

### Terminal Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Encoded`      | `0`  |

### Terminal Group Flags ###

| Name           | Bit  |
| ----           | ---  |
| `DrawOnRight`  | `0`  |
| `DrawCenter`   | `1`  |

### CopyBits Flags ###

| Name           | Bit  |
| ----           | ---  |
| `PICT2`        | `15` |

### Color Table Flags ###

| Name           | Bit  |
| ----           | ---  |
| `DeviceMap`    | `15` |

### Frame Flags ###

| Name           | Bit  |
| ----           | ---  |
| `Obscure`      | `13` |
| `FlipY`        | `14` |
| `FlipX`        | `15` |

- `Obscure` makes the player's torso obscure the legs.
- `FlipY` and `FlipX` flip pixels on the respective axis.

### Sound Definition Flags ###

| Name              | Bit  |
| ----              | ---  |
| `NoRestart`       | `0`  |
| `NoChannelSwitch` | `1`  |
| `LessPitchChange` | `2`  |
| `NoPitchChange`   | `3`  |
| `NoObstruction`   | `4`  |
| `NoMediaObstruct` | `5`  |
| `Ambient`         | `6`  |

### Random Sound Flags ###

| Name              | Bit  |
| ----              | ---  |
| `IgnoreDirection` | `0`  |

### Media Flags ###

| Name              | Bit  |
| ----              | ---  |
| `SoundObstruct`   | `0`  |

- `SoundObstruct` means the media makes no sound when under the floor. This is
  most sensible for, for instance, lava which can be drained.

### Object Frequency Flags ###

| Name              | Bit  |
| ----              | ---  |
| `RandomLocation`  | `0`  |

### Static Platform Flags ###

| Name                 | Bit  |
| ----                 | ---  |
| `InitActive`         | `0`  |
| `InitExtended`       | `1`  |
| `StopAtEachLevel`    | `2`  |
| `StopAtInitLevel`    | `3`  |
| `StartAdjOnStop`     | `4`  |
| `ExtendsFloorToCeil` | `5`  |
| `ComesFromFloor`     | `6`  |
| `ComesFromCeil`      | `7`  |
| `CausesDamage`       | `8`  |
| `NoActivateParent`   | `9`  |
| `ActivatesOnce`      | `10` |
| `ActivatesLight`     | `11` |
| `DeactivatesLight`   | `12` |
| `PlayerControls`     | `13` |
| `MonsterControls`    | `14` |
| `ReverseOnObstruct`  | `15` |
| `NoExtDeactivation`  | `16` |
| `UsePolygonHeights`  | `17` |
| `DelayedActivation`  | `18` |
| `StartAdjOnStart`    | `19` |
| `StopAdjOnStart`     | `20` |
| `StopAdjOnStop`      | `21` |
| `Slow`               | `22` |
| `StartAtEachLevel`   | `23` |
| `Locked`             | `24` |
| `Secret`             | `25` |
| `Door`               | `26` |

If I could explain to you why there are this many flags, I gladly would, but
this actually hurts my head.

### Effect Definition Flags ###

| Name              | Bit  |
| ----              | ---  |
| `EndOnLoop`       | `0`  |
| `EndOnXferLoop`   | `1`  |
| `SoundOnly`       | `2`  |
| `MakeTwinVisible` | `3`  |
| `MediaEffect`     | `4`  |

### Weapon Flags ###

| Name              | Bit  |
| ----              | ---  |
| `Automatic`       | `0`  |
| `RemoveAfterUse`  | `1`  |
| `InstantCasing`   | `2`  |
| `Overloads`       | `3`  |
| `RandomAmmo`      | `4`  |
| `TemporaryPower`  | `5`  |
| `ReloadOneHand`   | `6`  |
| `FireOutOfPhase`  | `7`  |
| `FireUnderMedia`  | `8`  |
| `TriggerSameAmmo` | `9`  |
| `SecondaryFlip`   | `10` |

### Damage Flags ###

| Name              | Bit  |
| ----              | ---  |
| `AlienDamage`     | `0`  |

- `AlienDamage` will decrease the damage on Easy and Wuss.

### Projectile Flags ###

| Name              | Bit  |
| ----              | ---  |
| `Guided`          | `0`  |
| `StopOnLoop`      | `1`  |
| `Persistent`      | `2`  |
| `Alien`           | `3`  |
| `Gravity`         | `4`  |
| `NoHorzError`     | `5`  |
| `NoVertError`     | `6`  |
| `TogglePanels`    | `7`  |
| `PosVertError`    | `8`  |
| `Melee`           | `9`  |
| `Ripper`          | `10` |
| `PassTransRandom` | `11` |
| `PassTransMore`   | `12` |
| `DoubleGravity`   | `13` |
| `ReboundFloor`    | `14` |
| `ThroughMedia`    | `15` |
| `BecomeItem`      | `16` |
| `Bloody`          | `17` |
| `WanderHorz`      | `18` |
| `WanderVert`      | `19` |
| `UseLowGrav`      | `20` |
| `PassMedia`       | `21` |

### Monster Flags ###

| Name              | Bit  |
| ----              | ---  |
| `IgnoreLOS`       | `0`  |
| `Flying`          | `1`  |
| `Alien`           | `2`  |
| `Major`           | `3`  |
| `Minor`           | `4`  |
| `NoOmit`          | `5`  |
| `Floats`          | `6`  |
| `NoAttack`        | `7`  |
| `Snipe`           | `8`  |
| `Invisible`       | `9`  |
| `SubtlyInvisible` | `10` |
| `Kamikaze`        | `11` |
| `Berserker`       | `12` |
| `Enlarged`        | `13` |
| `DelayedDeath`    | `14` |
| `FireSymmetrical` | `15` |
| `NuclearDeath`    | `16` |
| `NoFireBackwards` | `17` |
| `CanDieInFlames`  | `18` |
| `WaitForGoodShot` | `19` |
| `Tiny`            | `20` |
| `FastAttack`      | `21` |
| `LikesWater`      | `22` |
| `LikesSewage`     | `23` |
| `LikesLava`       | `24` |
| `LikesGoo`        | `25` |
| `TeleUnderMedia`  | `26` |
| `UseRandomWeapon` | `27` |

### Monster Class ###

| Name              | Bit  |
| ----              | ---  |
| `Player`          | `0`  |
| `Civilian`        | `1`  |
| `Madd`            | `2`  |
| `PossessedHummer` | `3`  |
| `Defender`        | `4`  |
| `Fighter`         | `5`  |
| `Trooper`         | `6`  |
| `Hunter`          | `7`  |
| `Enforcer`        | `8`  |
| `Juggernaut`      | `9`  |
| `Hummer`          | `10` |
| `Compiler`        | `11` |
| `Cyborg`          | `12` |
| `Assimilated`     | `13` |
| `Tick`            | `14` |
| `Yeti`            | `15` |

### Damage Type Flag ###

| Name                | Bit  |
| ----                | ---  |
| `Explosion`         | `0`  |
| `ElectricalStaff`   | `1`  |
| `Projectile`        | `2`  |
| `Absorbed`          | `3`  |
| `Flame`             | `4`  |
| `HoundClaws`        | `5`  |
| `AlienProjectile`   | `6`  |
| `HulkSlap`          | `7`  |
| `CompilerBolt`      | `8`  |
| `FusionBolt`        | `9`  |
| `HunterBolt`        | `10` |
| `Fist`              | `11` |
| `Teleporter`        | `12` |
| `Defender`          | `13` |
| `YetiClaws`         | `14` |
| `YetiProjectile`    | `15` |
| `Crushing`          | `16` |
| `Lava`              | `17` |
| `Suffocation`       | `18` |
| `Goo`               | `19` |
| `EnergyDrain`       | `20` |
| `OxygenDrain`       | `21` |
| `HummerBolt`        | `22` |
| `ShotgunProjectile` | `23` |

<!-- EOF -->