frame_plugins::rewards::payout

Struct FixedRatePayout

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pub struct FixedRatePayout;
Expand description

The FixedRatePayout model computes rewards using a fixed proportional rate, scaling linearly with the input asset.

Concept: Linear Proportional Function

§Formula

reward = x * r

§Characteristics:

  • Linear scaling: Reward increases proportionally with input
  • Simple and efficient: Minimal computation required
  • Deterministic: Same input and rate yield identical results
  • Fixed-point safe: Uses fixed-point arithmetic for precision
  • Context-driven: Controlled via FixedRateConfig

§Applications:

  • Percentage-based rewards (e.g., staking yield)
  • Fee or commission calculations
  • Proportional incentive distribution
  • Basic inflation mechanisms

§Use Cases

  • Rewarding participants based on stake size
  • Applying consistent percentage returns
  • Baseline reward models for systems

§Example

ⓘ
let config = FixedRateConfig {
    rate: FixedU128::from_rational(1, 100), // 1%
};

let reward = FixedRatePayout::compute(1000u128, Some(config));
// reward = 1000 * 0.01 = 10

Trait Implementations§

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impl Debug for FixedRatePayout

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for FixedRatePayout

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fn default() -> FixedRatePayout

Returns the “default value” for a type. Read more
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impl<FixedPoint, Asset> PurePluginModel<Asset, FixedRateConfig<FixedPoint>, Asset> for FixedRatePayout
where Asset: IntegerToFixed + FixedForInteger<FixedPoint = FixedPoint>, FixedPoint: FixedPointNumber,

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fn compute(&self, input: Asset, context: &FixedRateConfig<FixedPoint>) -> Asset

Computes the model’s output for a given immutable input and context.

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