consensus/protocol/photon/luminance.go

package photon

import (
	"github.com/luxfi/consensus/core/types"
)

// Luminance tracks node brightness based on consensus participation.
// More successful votes = higher lux = brighter emission probability.
type Luminance struct {
	lux map[types.NodeID]float64 // Brightness level per node (in lux units)
}

// NewLuminance creates a new brightness tracker
func NewLuminance() *Luminance {
	return &Luminance{
		lux: make(map[types.NodeID]float64),
	}
}

// Illuminate increases or decreases node brightness based on performance
func (l *Luminance) Illuminate(id types.NodeID, success bool) {
	if _, exists := l.lux[id]; !exists {
		l.lux[id] = 100.0 // Base illumination: 100 lux (office lighting)
	}

	if success {
		// Successful vote increases brightness (max: 1000 lux = bright daylight)
		l.lux[id] *= 1.1
		if l.lux[id] > 1000.0 {
			l.lux[id] = 1000.0
		}
	} else {
		// Failed vote dims the node (min: 10 lux = twilight)
		l.lux[id] *= 0.9
		if l.lux[id] < 10.0 {
			l.lux[id] = 10.0
		}
	}
}

// Brightness returns emission weight based on lux level (0.1 to 10.0)
func (l *Luminance) Brightness(id types.NodeID) float64 {
	if lux, exists := l.lux[id]; exists {
		return lux / 100.0 // Normalize to base level
	}
	return 1.0 // Default brightness
}