mikecargal

mikecargal

Apple Game Frameworks and Technologies: Chapter 5 question

Title: Name of book: Apple Game Frameworks and Technologies (Chapter 5 “die” animation)

Not an errata that I can tell so far…

I’m at the point in Chapter 5 of changing to the “die” animation on gameOver().

For some reason, the display does not change to the “die” png.

I’ve placed print() debugging statements in the player::die() method

    func die() {
        print("Player::die()")
        guard let dieTextures = dieTextures else {
            preconditionFailure("Could not find die textures!")
        }
        print("removeAction(forKey: \"walk\"")
        removeAction(forKey: "walk")
        
        print("dieTextures=>>\(dieTextures)<<")
        print("startAnimation(name:\"die\"")
        
        startAnimation(textures: dieTextures, speed: 0.25,
                       name: "die",
                       count: 0, resize: true, restore: true)
    }

and I get the following in the debug console:

player hit collectible
player hit collectible
collectible hit foreground
Player::die()
removeAction(forKey: "walk"
dieTextures=>>[<SKTexture> 'blob-die_0' (186 x 196)]<<
startAnimation(name:"die"

So, I know:

  • the die() method is being called.
  • the dieTextures has a single entry named “blob-die_0” (dimensions 186x196 on iPhone 8 simulator (and I see the 3x dimensions if I run on another simulator), so it really seems like it’s finding the png assets. (I followed the link in the assets, and it opened a directory that has the “sad blob” images.)

But this is what the screen looks like (you can even see the rectangle missing from removing the physics attributes from the drop

I’ve thought about comparing to the “end” project but there’s a lot of stuff left in the chapter before I get to the “end” state (so not applicable to current state). (I did start from my own previous project state (not the “start” project file. I may re-work my way through chapter 5 to this point on that project . But, I generally find that I learn a lot be trying to debug whatever I did wrong. In this case I’ve read, re-read, re-compared the steps in chapter 5 until I’m cross-eyed. (The changes for the labels, and everything up to this are all “working”)

So, as a question… does anyone have a suggestion as to where I should look. (I’m in that debugging state, where there’s so little involved in the changes, that I can’t see what I may have missed). Hoping someone has been here and can point me in the right direction.

Oh yeah… feel free to tell me “you’re on your own. Your mess, you clean it up” :slight_smile:

Marked As Solved

mikecargal

mikecargal

Mystery solved…

It was “Code Completion” in the SpriteKitHelper::startAnimation(...) { ... SKAction.animate(...) ...} with a withNormalTextures: instead of with:

(How the detective missed that so many times, remains a mystery. He’s on desk duty pending an investigation into his competency.)

Also Liked

mikecargal

mikecargal

I am enjoying the book. I wasn’t really expecting anyone to find my typo for me. (In hindsight, probably biggest “surprise” was that the mistake was something I got wrong so far back and didn’t bit me until this part.

And, based on your endorsement, the detective is back “on the beat”

mikecargal

mikecargal

Here’s a probably hint if anyone is interesting in tossing me a hint.

I went ahead with the code to override the update(_ currentTime: TimeInterval) method, and I do indeed see the level going wild, but I’m not bombarded with gloop drops. (I’m pretty sure that points to what I missed before, but I need to call it a day)

If I find it tomorrow, I’ll update.

Paradox927

Paradox927

Author and Editor at PragProg

Hey, Mike.

Sorry for the delay in getting back to you. Usually, I’m a lot faster at responding to these posts, but this week has proven to be quite the challenge. It seems time was not on my side. :roll_eyes:

On the plus side, it looks like you got everything working—and, for what it’s worth, I think you should keep that detective on the payroll. Everyone deserves a second chance. :blush: :grimacing:

Have a great weekend. Hope you’re enjoying the book.

Where Next?

Popular Pragmatic Bookshelf topics Top

johnp
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’. In particula...
New
jesse050717
Title: Web Development with Clojure, Third Edition, pg 116 Hi - I just started chapter 5 and I am stuck on page 116 while trying to star...
New
jdufour
Hello! On page xix of the preface, it says there is a community forum "… for help if your’re stuck on one of the exercises in this book… ...
New
herminiotorres
Hi! I know not the intentions behind this narrative when called, on page XI: mount() |&gt; handle_event() |&gt; render() but the correc...
New
cro
I am working on the “Your Turn” for chapter one and building out the restart button talked about on page 27. It recommends looking into ...
New
fynn
This is as much a suggestion as a question, as a note for others. Locally the SGP30 wasn’t available, so I ordered a SGP40. On page 53, ...
New
hgkjshegfskef
The test is as follows: Scenario: Intersecting a scaled sphere with a ray Given r ← ray(point(0, 0, -5), vector(0, 0, 1)) And s ← sphere...
New
brunogirin
When running tox for the first time, I got the following error: ERROR: InterpreterNotFound: python3.10 I realised that I was running ...
New
oaklandgit
Hi, I completed chapter 6 but am getting the following error when running: thread 'main' panicked at 'Failed to load texture: IoError(O...
New
taguniversalmachine
It seems the second code snippet is missing the code to set the current_user: current_user: Accounts.get_user_by_session_token(session["...
New

Other popular topics Top

PragmaticBookshelf
Free and open source software is the default choice for the technologies that run our world, and it’s built and maintained by people like...
New
Exadra37
I am thinking in building or buy a desktop computer for programing, both professionally and on my free time, and my choice of OS is Linux...
New
siddhant3030
I’m thinking of buying a monitor that I can rotate to use as a vertical monitor? Also, I want to know if someone is using it for program...
New
New
PragmaticBookshelf
Build highly interactive applications without ever leaving Elixir, the way the experts do. Let LiveView take care of performance, scalabi...
New
rustkas
Intensively researching Erlang books and additional resources on it, I have found that the topic of using Regular Expressions is either c...
New
PragmaticBookshelf
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New
AstonJ
If you get Can't find emacs in your PATH when trying to install Doom Emacs on your Mac you… just… need to install Emacs first! :lol: bre...
New
AstonJ
If you want a quick and easy way to block any website on your Mac using Little Snitch simply… File &gt; New Rule: And select Deny, O...
New
hilfordjames
There appears to have been an update that has changed the terminology for what has previously been known as the Taskbar Overflow - this h...
New

Sub Categories: