model.go

package main

import (
	"image"
	"image/color"
)

// SimulatedAnnealingEngine is the engine that manages the annealing simulation
type SimulatedAnnealingEngine interface {
	Iterate() error
	ToPixels() []byte
	GetSnapshot() image.Image
}

// VoronoiDiagram is the voronoi engine used by the annealing engine
type VoronoiDiagram interface {
	Init()
	Tessellate() error
	Perturbate() error
	ToPixels() []byte
	ToImage() image.Image
	GetSeeds() []Point
	WithSeeds([]Point)
}

// TargetImage is the struct containing info about the target image: its name, size, and the RGBA values of its pixels
type TargetImage struct {
	Name   string
	Bytes  []byte
	Width  int
	Height int
}

// Point is the struct modeling a point of the Voronoi diagram, with its position, color, and distance from the center of the seed
type Point struct {
	X        int
	Y        int
	Distance *int
	Color    *color.RGBA
}

// abs is a utility function to compute the absolute value of an int
func abs(x int) int {
	if x < 0 {
		return -x
	}
	return x
}