Playing with Protocols as Types

BrickMaker.swift

// https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Protocols.html

print("Brick maker!")

// for testing on http://swiftlang.ng.bluemix.net/
typealias CGFloat = Float

struct CGPoint {
    var x: CGFloat
    var y: CGFloat
}

protocol BrickMaker {
    func MakeBrick()
}

class LeftBrickMaker: BrickMaker {
    func MakeBrick() {
        print("made a left brick")
    }
}

class RightBrickMaker: BrickMaker {
    func MakeBrick() {
        print("made a right brick")
    }
}

class Brick {
    let position: CGPoint
    let maker: BrickMaker
    init(position: CGPoint, maker: BrickMaker) {
        self.position = position
        self.maker = maker
    }
    
    func DrawBrick() {
        self.maker.MakeBrick()
    }
    
}

var lBrick = Brick(position: CGPoint(x: 0, y: 0), maker: LeftBrickMaker())
lBrick.DrawBrick()

var rBrick = Brick(position: CGPoint(x: 0, y: 0), maker: RightBrickMaker())
rBrick.DrawBrick()