Monkeying Around With SpriteKit—Embedding UIViews in SKViews

  

import UIKit
import SpriteKit
import GameplayKit

class myFirstScene: SKScene {
    
    var vWidth:CGFloat {
        return (self.view?.frame.size.width)!
    }
    var vHeight:CGFloat {
        return (self.view?.frame.size.height)!
    }
    
    override func didMove(to skView: SKView) {
        let uiVIew: UIView = UIView(frame: CGRect(x: 0, y: vHeight * 0.25, width: (vWidth * 0.5), height: (vHeight * 0.5)))
        uiVIew.backgroundColor = UIColor.blue

        let txtView = UITextView(frame: uiVIew.bounds)
        txtView.text = "I am a UITextView \nIn a UI View\nIn a SKView \nIn an SKScene\nDrien by a UIViewController."
        txtView.textColor = UIColor.white
        txtView.textAlignment = .left
        txtView.isEditable = false
        txtView.backgroundColor = UIColor.clear
        
        uiVIew.addSubview(txtView)
        skView.addSubview(uiVIew)
    }
}

class GameViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let skView = self.view as! SKView
        let mainViewFrame:CGRect = self.view.bounds
        let skScene = myFirstScene(size: mainViewFrame.size)
        
        skView.presentScene(skScene)
    }
}
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Swift 3.0 Card Generator: Update

 

Early November 2016, I pushed up a small pet project to GitHub: https://github.com/Zbeyer/CardGenerator

The application is simple: enter a few bits of information, choose a color, and set a background image and it formats a trading card. The dpi generated is not yet tweaked to work with the chosen distribution method (final TODO) but a few branches exist with slight variations on configuration.

here are some examples using background images from my static art portfolio:

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Seattle Snow

 
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Swift: Clock Layout Update*

 

While yesterday’s code solved the ‘problem’, today I took a few minutes to do some abstraction and write an alternate version that computes the positions of n points evenly spaced in a circle:


//Constant size of each node on the clock face
let kSize:CGFloat = 4

//Place a ClockFace node in the center
let clockFace:SKShapeNode = nodeGenerator(size:r, point: CGPoint( x:midPoint.x, y:midPoint.y), scene:scene)
clockFace.fillColor = SKColor.gray

//Place a normal node in the center
let centerNode:SKShapeNode = nodeGenerator(size:kSize, point: CGPoint( x:midPoint.x, y:midPoint.y), scene:scene)

//Determine radian spacing...
let nodesOnTheClock = 12
let interval:Double = 2 * M_PI / Double(nodesOnTheClock) //Radians

for index in 1...nodesOnTheClock {
    let angle:Double = M_PI_2 - Double(index) * interval
    let node:SKShapeNode = nodeGenerator(size: kSize,
                                           point: CGPoint(
                                            x:midPoint.x + r * cos(CGFloat(angle)),
                                            y:midPoint.y + r * sin(CGFloat(angle))),
                                           scene:scene)
    
}

screen-shot-2016-11-01-at-3-38-46-pm

You can grab the Gist at: https://gist.github.com/Zbeyer/038b672ba619ea93a06c1ed49608731c

The Full Code Snippet will be below the following screenshots:

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Clock Points — Swift Playground

 

Another Quick Exercise

For my birthday, I decided to solve a display exercise in Swift that inevitably will be necessary in my personal Towne of Klock project. The problem is very simple:

Given a 2D cartesian plane (in this case a SpriteKit Scene in Swift) determine where the points for One O’Clock through Twelve O’Clock must be placed. Not a very original or difficult problem to solve, per say. However, I do so love playing with geometry!

If interested in my solution you can do one of the following…

screen-shot-2016-10-31-at-4-09-29-pm

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iOS GameKit (Swift) Controller

 

A Leisurely Evening Exercise

Tonight I decided to Explore SpriteKit. I decided a quick project would be to create a simple touch controller (using a gamepad control stick as a metaphor). I drew most of the inspiration for this project from the iOS Chrono Trigger port which I always enjoyed.

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Inspecting Headers with Objective-C

 

Occasionally, an iOS app may to need to parse the headers out of an HTTP request. Here is one example to implement such behavior.

First consider the NSHTTPURLResponse Object:

<NSHTTPURLResponse: 0x79f4b7e0> 
{ 
    URL: http://zbeyer.com/stuff/mobile-testing/index.html 
} 
{ 
    status code: 200, 
    headers {
      "Accept-Ranges" = bytes;
      Age = 157;
      Connection = "Keep-Alive";
      "Content-Encoding" = gzip;
      "Content-Length" = 94;
      "Content-Type" = "text/html";
      Date = "Mon, 06 Jun 2016 21:20:29 GMT";
      "Last-Modified" = "Mon, 06 Jun 2016 18:36:03 GMT";
      Server = "nginx/1.10.1";
      Vary = "Accept-Encoding";
    } 
}

For this example, I am interested in the “Last Modified” header field on my sample index.html file. My application wants to know how long it’s been since that url was last updated.

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