次々と消していく＠コードを学ぼう3

// 次々と消していく＠コードを学ぼう3
// a - e はそれぞれ動物の emoji
let animals = [a, b, c, d, e]

func addImage(touch: Touch) {
    if touch.previousPlaceDistance < 80
    { return }
    
    // Get a random image and place it.
    let index = randomInt(from: 0, to: animals.count - 1)
    let graphic = Graphic(image: animals[index])
    scene.place(graphic, at: touch.position)
    let seconds = randomDouble(from: 1.0, to: 5.0)
    // Experiment with different functions.
    graphic.swirlAway(after: seconds)
}

youtu.be