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
jamis
The following is cross-posted from the original Ray Tracer Challenge forum, from a post by garfieldnate. I’m cross-posting it so that the...
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
leba0495
Hello! Thanks for the great book. I was attempting the Trie (chap 17) exercises and for number 4 the solution provided for the autocorre...
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
adamwoolhether
I’m not quite sure what’s going on here, but I’m unable to have to containers successfully complete the Readiness/Liveness checks. I’m im...
New
hazardco
On page 78 the following code appears: &lt;%= link_to ‘Destroy’, product, class: ‘hover:underline’, method: :delete, data: { confirm...
New
redconfetti
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New
New
dachristenson
I’ve got to the end of Ch. 11, and the app runs, with all tabs displaying what they should – at first. After switching around between St...
New

Other popular topics Top

AstonJ
If it’s a mechanical keyboard, which switches do you have? Would you recommend it? Why? What will your next keyboard be? Pics always w...
New
New
PragmaticBookshelf
Machine learning can be intimidating, with its reliance on math and algorithms that most programmers don't encounter in their regular wor...
New
Rainer
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
New
DevotionGeo
The V Programming Language Simple language for building maintainable programs V is already mentioned couple of times in the forum, but I...
New
AstonJ
Was just curious to see if any were around, found this one: I got 51/100: Not sure if it was meant to buy I am sure at times the b...
New
First poster: AstonJ
Jan | Rethink the Computer. Jan turns your computer into an AI machine by running LLMs locally on your computer. It’s a privacy-focus, l...
New
Fl4m3Ph03n1x
Background Lately I am in a quest to find a good quality TTS ai generation tool to run locally in order to create audio for some videos I...
New
PragmaticBookshelf
As digital systems increasingly run the world, mastery of the recurring patterns of software development risk is the key to fast and effe...
New
pragdave
Build robust LLM-powered apps, chatbots, and agents while mastering AI engineering principles that will help you outlast the tools and th...
New

Sub Categories: