1240 Views 6 Replies
      Latest reply on Sep 14, 2016 2:48 PM by Max Power
      advancecoder56 Level 1 Level 1 (0 points)
      advancecoder56 Sep 4, 2016 11:25 AM 
        import Cocoa
import SpriteKit
import PlaygroundSupport
let view:SKView = SKView(frame: CGRect(x: 0, y: 0, width: 1024, height: 768))
let scene:SKScene = SKScene(size: CGSize(width: 1024, height: 768))
scene.scaleMode = SKSceneScaleMode.aspectFit
view.presentScene(scene)
view.showsFPS = true
let redBox:SKSpriteNode = SKSpriteNode(color: SKColor.red, size: CGSize.init(width: 300, height: 300))
redBox.position = CGPoint(x: 512, y: 384)
redBox.run(SKAction.repeatForever(SKAction.rotate(byAngle: 6, duration: 2)))
scene.addChild(redBox)
PlaygroundPage.current.liveView = view
PlaygroundPage.current.needsIndefiniteExecution = true

         

        I have the following code but it doesn't display the spinning red square as expected.  What do I do?

        • Re: Playgrounds: Swift SpriteKit code is not getting live view
          eskimo Apple Staff Apple Staff (12,475 points)
          eskimo Sep 5, 2016 1:48 AM (in response to advancecoder56)

          Did you show the assistant editor (View > Assistant Editor > Show Assistant Editor)?  I pasted your code into a playground (OS X 10.11.6, Xcode 8.0b6, macOS playground) and I got a spinning red square once I showed that.

          Share and Enjoy
          —
          Quinn “The Eskimo!”
          Apple Developer Relations, Developer Technical Support, Core OS/Hardware
          let myEmail = "eskimo" + "1" + "@apple.com"

            • Re: Playgrounds: Swift SpriteKit code is not getting live view
              advancecoder56 Level 1 Level 1 (0 points)
              advancecoder56 Sep 5, 2016 10:43 AM (in response to eskimo)

              I showed the assistant editor but the Xcode Playground got into an infinite loop with the running command and never displayed the spinning red box with Xcode 8.0b6 and OS X 10.12 Beta (16A313a).  How can I solve this problem?  Is there a way to find out what is happening with Playgrounds?  It seems very flaky on my machine.

                • Re: Playgrounds: Swift SpriteKit code is not getting live view
                  eskimo Apple Staff Apple Staff (12,475 points)
                  eskimo Sep 8, 2016 8:50 AM (in response to advancecoder56)

                  How can I solve this problem?

                  I don’t have any suggestions here, alas.  I did what you did and it worked just fine.

                  Share and Enjoy
                  —
                  Quinn “The Eskimo!”
                  Apple Developer Relations, Developer Technical Support, Core OS/Hardware
                  let myEmail = "eskimo" + "1" + "@apple.com"

                    • Re: Playgrounds: Swift SpriteKit code is not getting live view
                      advancecoder56 Level 1 Level 1 (0 points)
                      advancecoder56 Sep 8, 2016 2:08 PM (in response to eskimo)

                      I turned on the issues log in Xcode 8 GM Seed Playgrounds and this is output I got:

                       

                      Playground execution failed: error: Couldn't lookup symbols:
  __TMaC17PlaygroundSupport14PlaygroundPage
  __TFC17PlaygroundSupport14PlaygroundPages24needsIndefiniteExecutionSb
  __TFC17PlaygroundSupport14PlaygroundPageau7currentS0_
  __TWPCSo6NSView17PlaygroundSupport22PlaygroundLiveViewableS0_
  __TFC17PlaygroundSupport14PlaygroundPages8liveViewGSqPS_22PlaygroundLiveViewable__
* thread #1: tid = 0x2eb451, 0x000000010fa5b360 com.apple.dt.Xcode.PlaygroundStub-macosx`executePlayground, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
  * frame #0: 0x000000010fa5b360 com.apple.dt.Xcode.PlaygroundStub-macosx`executePlayground
    frame #1: 0x000000010fa5922a com.apple.dt.Xcode.PlaygroundStub-macosx`-[PlaygroundViewBridgeService execute] + 90
    frame #2: 0x00007fffad01602c CoreFoundation`__invoking___ + 140
    frame #3: 0x00007fffad015eb1 CoreFoundation`-[NSInvocation invoke] + 289
    frame #4: 0x00007fffad02f376 CoreFoundation`-[NSInvocation invokeWithTarget:] + 54
    frame #5: 0x00007fffc021f18d ViewBridge`__68-[NSVB_ViewServiceImplicitAnimationDecodingProxy forwardInvocation:]_block_invoke + 47
    frame #6: 0x00007fffc023078b ViewBridge`__runAnimationGroup_block_invoke + 21
    frame #7: 0x00007fffab56b7e3 AppKit`+[NSAnimationContext runAnimationGroup:] + 58
    frame #8: 0x00007fffaacc5776 AppKit`+[NSAnimationContext runAnimationGroup:completionHandler:] + 85
    frame #9: 0x00007fffc0230767 ViewBridge`runAnimationGroup + 303
    frame #10: 0x00007fffc021ec94 ViewBridge`+[NSVB_View _animateWithAttributes:animations:completion:] + 507
    frame #11: 0x00007fffc021f10f ViewBridge`-[NSVB_ViewServiceImplicitAnimationDecodingProxy forwardInvocation:] + 156
    frame #12: 0x00007fffad0149ea CoreFoundation`___forwarding___ + 538
    frame #13: 0x00007fffad014748 CoreFoundation`__forwarding_prep_0___ + 120
    frame #14: 0x00007fffad01602c CoreFoundation`__invoking___ + 140
    frame #15: 0x00007fffad015eb1 CoreFoundation`-[NSInvocation invoke] + 289
    frame #16: 0x00007fffad02f376 CoreFoundation`-[NSInvocation invokeWithTarget:] + 54
    frame #17: 0x00007fffc01ed22b ViewBridge`-[NSVB_QueueingProxy forwardInvocation:] + 327
    frame #18: 0x00007fffad0149ea CoreFoundation`___forwarding___ + 538
    frame #19: 0x00007fffad014748 CoreFoundation`__forwarding_prep_0___ + 120
    frame #20: 0x00007fffad01602c CoreFoundation`__invoking___ + 140
    frame #21: 0x00007fffad015eb1 CoreFoundation`-[NSInvocation invoke] + 289
    frame #22: 0x00007fffad02f376 CoreFoundation`-[NSInvocation invokeWithTarget:] + 54
    frame #23: 0x00007fffad0149ea CoreFoundation`___forwarding___ + 538
    frame #24: 0x00007fffad014748 CoreFoundation`__forwarding_prep_0___ + 120
    frame #25: 0x00007fffad01602c CoreFoundation`__invoking___ + 140
    frame #26: 0x00007fffad015eb1 CoreFoundation`-[NSInvocation invoke] + 289
    frame #27: 0x00007fffad02f376 CoreFoundation`-[NSInvocation invokeWithTarget:] + 54
    frame #28: 0x00007fffad0149ea CoreFoundation`___forwarding___ + 538
    frame #29: 0x00007fffad014748 CoreFoundation`__forwarding_prep_0___ + 120
    frame #30: 0x00007fffad01602c CoreFoundation`__invoking___ + 140
    frame #31: 0x00007fffad015eb1 CoreFoundation`-[NSInvocation invoke] + 289
    frame #32: 0x00007fffc0234e28 ViewBridge`withHintInProgress + 487
    frame #33: 0x00007fffc0234b57 ViewBridge`__deferNSXPCInvocationOntoMainThread_block_invoke_2 + 233
    frame #34: 0x00007fffc01c6202 ViewBridge`+[NSViewServiceApplication withHostPID:invoke:] + 46
    frame #35: 0x00007fffc0234a1a ViewBridge`__deferNSXPCInvocationOntoMainThread_block_invoke + 179
    frame #36: 0x00007fffc0234607 ViewBridge`__deferBlockOntoMainThread_block_invoke_2 + 544
    frame #37: 0x00007fffad0383ac CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
    frame #38: 0x00007fffad019424 CoreFoundation`__CFRunLoopDoBlocks + 356
    frame #39: 0x00007fffad018f66 CoreFoundation`__CFRunLoopRun + 1878
    frame #40: 0x00007fffad0185b4 CoreFoundation`CFRunLoopRunSpecific + 420
    frame #41: 0x00007fffac5b9f6c HIToolbox`RunCurrentEventLoopInMode + 240
    frame #42: 0x00007fffac5b9da1 HIToolbox`ReceiveNextEventCommon + 432
    frame #43: 0x00007fffac5b9bd6 HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 71
    frame #44: 0x00007fffaacaf5f5 AppKit`_DPSNextEvent + 1093
    frame #45: 0x00007fffab3bf8eb AppKit`-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1637
    frame #46: 0x00007fffc01c747a ViewBridge`-[NSViewServiceApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 102
    frame #47: 0x00007fffaaca3fbd AppKit`-[NSApplication run] + 926
    frame #48: 0x00007fffaac6ea8a AppKit`NSApplicationMain + 1237
    frame #49: 0x00007fffc22ad8b3 libxpc.dylib`_xpc_objc_main + 775
    frame #50: 0x00007fffc22ac2d0 libxpc.dylib`xpc_main + 494
    frame #51: 0x00007fffc01f16b9 ViewBridge`-[NSXPCSharedListener resume] + 16
    frame #52: 0x00007fffc01cc2c9 ViewBridge`NSViewServiceApplicationMain + 3022
    frame #53: 0x000000010fa5b3a2 com.apple.dt.Xcode.PlaygroundStub-macosx`main + 34
    frame #54: 0x00007fffc204a255 libdyld.dylib`start + 1
    frame #55: 0x00007fffc204a255 libdyld.dylib`start + 1

                       

                      Can someone parse this and make sense of this because I don't get a rotating red square?

                • Re: Playgrounds: Swift SpriteKit code is not getting live view
                  Max Power Level 1 Level 1 (0 points)
                  Max Power Sep 14, 2016 2:48 PM (in response to advancecoder56)

                  I just read your complaint to the Swift mailing list, and was so free to test your code in the final version of Xcode 8, and I could see the turning square.