package main

import (
	"github.com/ojrac/opensimplex-go"
)

type Field interface {
	/**
	 * return a value on the range 0,1
	 */
	Get(x float32, y float32) float32
}

// TRANSFORM FIELDS
type ScaleField struct {
	Scale float32
	Field Field
}

func (f *ScaleField) Get(x, y float32) float32 {
	return f.Field.Get(x / f.Scale, y / f.Scale)
}

// NOISE FIELDS

type SimplexNoiseField struct {
	Noise opensimplex.Noise32
}

func (f *SimplexNoiseField) Get(x, y float32) float32 {
	return f.Noise.Eval2(x, y)
}