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//: # With a tortoise 🐢
//: [👉 With 2 tortoises 🐢🐢](@next)
import PlaygroundSupport
import TortoiseGraphics
import CoreGraphics

let canvas = PlaygroundCanvas(frame: CGRect(x: 0, y: 0, width: 800, height: 800))
canvas.frameRate = 30
canvas.color = .white
PlaygroundPage.current.liveView = canvas

canvas.drawing { 🐢 in

    🐢.penColor(.red)
    🐢.penDown()
    

    // draw a square
//    🐢.forward(100)
//    🐢.left(90)
//    🐢.forward(100)
//    🐢.left(90)
//    🐢.forward(100)
//    🐢.left(90)
//    🐢.forward(100)
//    🐢.left(90)
    
    
    // look for repeats...
//    for i in 1 ... 4 {
//        🐢.forward(100)
//        🐢.left(90)
//    }
    
    //make it a function
//    func square() {
//        for i in 1 ... 4 {
//            🐢.left(90)
//            🐢.forward(100)
//        }
//    }
    
    // try it out
    //square()
    
    // make it an adjustable function
    func adjustableSquare(size: Double) {
        for i in 1 ... 4 {
            🐢.left(90)
            🐢.forward(size)
        }
    }
    
    
    // let's make something out of those squares
    for i in 1...90 {
        adjustableSquare(size: 100)
        🐢.left(4)
    }
    
    // Instantiate a ImageCanvas
    let canvie = ImageCanvas(size: CGSize(width: 300, height: 300))
    
    canvie.drawing { 🐢 in
        for i in 1...90 {
            adjustableSquare(size: 100)
            🐢.left(4)
        }
    }
    
    let cgImage = canvie.cgImage
    
    let image = canvie.image
    
    // docs say:
    //canvas.writePNG(to: URL(fileURLWithPath: "./image.png")
    // I think its missing the last ")" so I added it, still doesn't work
    //canvie.writePNG(to: URL(fileURLWithPath: "./image.png"))
    
  
}