## Conditions

Conditions are filters for [actions](Actions.md) and for some [fixtures](09_Fixture/levelFixtureEntry.md) that don't use actions.

Conditions can examine different aspects of the state of the game or (current) level.


### Game Variable Conditions

These conditions check the value of a game variable (also called "quest value").

**Game Variable Condition** (4 bytes)

    0000  uint16    Variable key
    0002  byte      Value
    0003  byte      Failure message

The ```Failure message``` is a message (or indication) the player shall receive if the condition was not met.
```0x00``` means no indication, ```0xFF``` is used for security warnings (blocked by SHODAN security);
All other values are interpreted as text/audio message index.


**Variable key** (2 bytes)

    0x03FF          Variable index
    0x0C00          Unused
    0x1000          Variable type; 0: boolean variable, 1: int16 variable
    0xE000          Comparison

**Comparison**

    0: Variable must be equal to value
    1: Variable must be less than value
    2: Variable must be less than, or equal to, value
    3: Variable must be greater than value
    4: Variable must be greater than, or equal to, value
    5: Variable must be not equal to value
    6: Value must be greater than a random value of range 0..254 (variable value is ignored)


### Object Type Conditions

These conditions check for a specific object type.

**Object Type Condition** (4 bytes)

    0000  int32     Class/Subclass/Type encoded as 0x00CCSSTT

Note that the most significant byte needs to be ```0x00```. 

> These conditions are used for the quest items and for death watch trigger.


### Object Index Conditions

These conditions are level-specific and only used for death watch trigger.

**Object Index Condition** (4 bytes)

    0000  int16     Object index
    0002  byte      Unused
    0003  byte      Condition marker = 0x01


As these conditions are used for the same type of triggers as the object type conditions, the ```condition marker``` identifies the class of condition.