Resource Value Providers (resource_value_provider_type)
A value provider resolves one number for a value: the current value, the defined maximum, the regeneration speed, how far it is from the maximum, and the two aura concentrations. It is not written in a resource bar — scripts evaluate it: hand the object to MxtValues.evaluateResource(entity, resource, definition), and register the callback of mxt:js with MxtValues.resourceValue(id, callback), see the KubeJS API reference.
This family is registered by the mod, so its type ids are fixed: a data pack picks one and cannot add a new one. Only Java code or the KubeJS bridge can introduce a custom one.
mxt:current
The current value stored on the entity.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:current"}
mxt:max
The max evaluated from the definition of this value.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:max"}
mxt:regen
The regen of that value's aura definition, that is the natural regeneration per tick.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:regen"}
mxt:missing
How much is missing to the maximum, never below 0.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:missing"}
mxt:environment_concentration
The environmental template concentration at the position, excluding chunk storage and block or formation contributions.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:environment_concentration"}
mxt:actual_concentration
The concentration finally resolved at the position, including every effective source.
| Field | Type | Default | Description |
|---|---|---|---|
| — | — | — | No fields. |
{"type": "mxt:actual_concentration"}
mxt:constant
A fixed number.
| Field | Type | Default | Description |
|---|---|---|---|
value | NumberProvider | required | The number to resolve |
{"type": "mxt:constant", "value": "level * 10"}
mxt:js
A number decided by a script callback.
| Field | Type | Default | Description |
|---|---|---|---|
id | String | required | Callback ID registered through MxtValues.resourceValue(id, callback) |
params | Object | {} | Arbitrary JSON passed to the callback |
{"type": "saturn:js", "id": "example:qi_bonus", "params": {"scale": 2}}
mxt:regen resolves to 0 when no matching aura definition can be read. Both concentration sources read world state and therefore need an entity: with no entity they resolve to 0. The server computes them from world state, the client reads the aura pool that was synchronized down. A missing or throwing mxt:js callback logs a warning and resolves to 0.
Both concentration IDs appear in two places, do not mix them up: written in the context of a resource bar they are contexts, they read the pool synchronized to the client and need no entity; written as a type on this page they need an entity, and the server computes them from world state itself.