ml
67 lines
2.0 KiB
Markdown
67 lines
2.0 KiB
Markdown
## Conditions
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Conditions are filters for [actions](Actions.md) and for some [fixtures](09_Fixture/levelFixtureEntry.md) that don't use actions.
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Conditions can examine different aspects of the state of the game or (current) level.
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### Game Variable Conditions
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These conditions check the value of a game variable (also called "quest value").
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**Game Variable Condition** (4 bytes)
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0000 uint16 Variable key
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0002 byte Value
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0003 byte Failure message
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The ```Failure message``` is a message (or indication) the player shall receive if the condition was not met.
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```0x00``` means no indication, ```0xFF``` is used for security warnings (blocked by SHODAN security);
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All other values are interpreted as text/audio message index.
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**Variable key** (2 bytes)
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0x03FF Variable index
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0x0C00 Unused
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0x1000 Variable type; 0: boolean variable, 1: int16 variable
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0xE000 Comparison
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**Comparison**
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0: Variable must be equal to value
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1: Variable must be less than value
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2: Variable must be less than, or equal to, value
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3: Variable must be greater than value
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4: Variable must be greater than, or equal to, value
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5: Variable must be not equal to value
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6: Value must be greater than a random value of range 0..254 (variable value is ignored)
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### Object Type Conditions
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These conditions check for a specific object type.
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**Object Type Condition** (4 bytes)
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0000 int32 Class/Subclass/Type encoded as 0x00CCSSTT
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Note that the most significant byte needs to be ```0x00```.
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> These conditions are used for the quest items and for death watch trigger.
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### Object Index Conditions
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These conditions are level-specific and only used for death watch trigger.
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**Object Index Condition** (4 bytes)
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0000 int16 Object index
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0002 byte Unused
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0003 byte Condition marker = 0x01
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As these conditions are used for the same type of triggers as the object type conditions, the ```condition marker``` identifies the class of condition.
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