SwiftBlocks.swift

let somelocation = Position(x: 50.5, y: 90.13)

let cat = Sprite(name: "Cat")
cat.contents.addBlock(PressFlag())
cat.contents.addBlock(Say(text: "Hello"))
cat.contents.addBlock(GoTo(location: somelocation))

print(cat)
/*
Sprite[Cat]@(0.0,0.0)
*/

cat.eval(event: .Flag)
/*
Cat: Hello
Sprite[Cat] (0.0,0.0) -> (50.5,90.13)
*/

print(cat)
/*
Sprite[Cat]@(50.5,90.13)
*/