//

// Material.swift

// ShapeScript

//

// Created by Nick Lockwood on 16/01/2019.

// Copyright © 2019 Nick Lockwood. All rights reserved.

//

import Euclid

import Foundation

public typealias Color = Euclid.Color

public enum Texture: Hashable {

case file(name: String, url: URL)

case data(Data)

}

public enum MaterialProperty: Hashable {

case color(Color)

case texture(Texture)

init?(_ value: Any) {

switch value {

case let color as Color:

self = .color(color)

case let texture as Texture:

self = .texture(texture)

default:

return nil

}

}

}

public struct Material: Hashable {

public var opacity = 1.0

public var texture: Texture?

public var color: Color? {

// Color and texture are mutually exclusive

didSet { texture = (color != nil) ? nil : texture }

}

public var isOpaque: Bool {

opacity > 0.999 && (color?.a ?? 1) > 0.999

}

public static let `default` = Material()

public init(color: Color? = nil) {

self.color = color

}

}