Utilities.swift

/*
See LICENSE folder for this sample’s licensing information.

Abstract:
Utility functions and type extensions used throughout the projects.
*/

import Foundation
import ARKit
import simd

// MARK: - float4x4 extensions


extension ARFrame.WorldMappingStatus: CustomStringConvertible {
    public var description: String {
        switch self {
        case .notAvailable:
            return "Not Available"
        case .limited:
            return "Limited"
        case .extending:
            return "Extending"
        case .mapped:
            return "Mapped"
        }
    }
}

// MARK: - CGPoint extensions

extension CGPoint {
    /// Extracts the screen space point from a vector returned by SCNView.projectPoint(_:).
    init(_ vector: SCNVector3) {
        self.init(x: CGFloat(vector.x), y: CGFloat(vector.y))
    }

    /// Returns the length of a point when considered as a vector. (Used with gesture recognizers.)
    var length: CGFloat {
        return sqrt(x * x + y * y)
    }
}