SpriteKit 最初の一歩

1 + 1

import SpriteKit

SKShapeNode(circleOfRadius: 10.0)
SKShapeNode(ellipseOf: CGSize(width: 10.0, height: 10.0))
SKShapeNode(ellipseOf: CGSize(width: 20.0, height: 10.0))
SKShapeNode(rectOf: CGSize(width: 10.0, height: 10.0))
SKShapeNode(rectOf: CGSize(width: 10.0, height: 10.0), cornerRadius: 3.0)

CGSize(width: 20.0, height: 10.0)

let line = CGMutablePath()
line.move(to: CGPoint(x: 0.0, y: 0.0))
line.addLine(to: CGPoint(x: 100.0, y: 0.0))
SKShapeNode(path: line)

let triangle = CGMutablePath()
triangle.move(to: CGPoint(x: 0.0, y: 0.0))
triangle.addLine(to: CGPoint(x: 100.0, y: 0.0))
triangle.addLine(to: CGPoint(x: 100.0, y: 100.0))
triangle.closeSubpath()
SKShapeNode(path: triangle)

let rectangle = SKShapeNode(rectOf: CGSize(width: 100.0, height: 50.0))
rectangle.fillColor = .white
rectangle.strokeColor = .red
rectangle.lineWidth = 10.0
rectangle.setScale(0.5)
rectangle.zRotation = 45.0 * CGFloat.pi / 180.0

extension BinaryFloatingPoint {
    public static func radians(degrees: Self) -> Self {
        degrees * Self.pi / Self(180.0)
    }
    public static func degrees(radians: Self) -> Self {
        radians / Self.pi * Self(180.0)
    }
}

rectangle.zRotation = CGFloat.radians(degrees: 45.0)

let arc = CGMutablePath()
arc.addArc(
    center: .zero,
    radius: 50.0,
    startAngle: .radians(degrees: 180.0),
    endAngle: .zero,
    clockwise: true
)
SKShapeNode(path: arc)

let inner = SKShapeNode(rectOf: CGSize(width: 50.0, height: 50.0))
inner.zRotation = .radians(degrees: 45.0)
let outer = SKShapeNode(rectOf: CGSize(width: 100.0, height: 100.0))
outer.addChild(inner)