Criteria Groups
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A criteria group is a group of criteria and/or nested criteria groups. A criteria group is attached to an and used to determine whether or not the achievement has been earned by a player.
A criteria group has the following properties:
Name
Type
Default
custom_id
string
-
name
string
-
description
string
empty
operator
string
and
criteria
collection
empty
criteria_groups
collection
empty
conditions
json
empty
The criteria group's operator property determines which boolean logic is employed when it is evaluated. It can have any one of the following values:
and: The criteria group's criteria and nested criteria groups will be anded together when evaluated. This means that all criteria and nested criteria groups for a criteria group with operator equal to and must be true for it to evaluate to true itself.
or: The criteria group's criteria and nested criteria groups will be ored together when evaluated. This means at least one of a criteria group's criteria or nested criteria groups must be true for it to evaluate to true itself.
xor: The criteria group's criteria and nested criteria groups will be xored together when evaluated. This means only one of a criteria group's criteria or nested criteria groups can be true for it to evaluate to true itself.
If a criteria group has neither criteria nor nested criteria groups, then it will always evaluate to false, regardless of its operator value.
A criteria group may itself have nested criteria groups. This allows for a single achievement to have simple or complex criteria.
Some notes about nested criteria groups:
Criteria groups can have zero or more nested criteria groups.
Criteria groups cannot have duplicate nested criteria groups.
Chains can be defined. That is, criteria group A can nest criteria group B, which can nest criteria group C.
Chains may not be cyclical. That is, criteria group A can nest criteria group B, but criteria group B cannot nest criteria group A.
Depending on your subscription, there may be limits to the number of nested criteria groups a single criteria group can have as well as the depth or length of an criteria group-nested-criteria group chain.
A criteria group can have multiple . They can be attached to a criteria group in order to be evaluated against a player's activities.
are common to both and criteria groups. If present, they are applied before looking to see if a criterion has been met. Conditions provide a way to filter player activities when determining whether or not a criterion has been met. Once filtered, the is used against whatever activities remain.