While trying to unpack lifesaver-1.1.pkg I'm getting following error:

% pkgutil --expand lifesaver-1.1.pkg ./lifesaver
pkgutil(37305,0x11926a5c0) malloc: can't allocate region
*** mach_vm_map(size=255086697644032) failed (error code=3)
pkgutil(37305,0x11926a5c0) malloc: *** set a breakpoint in malloc_error_break to debug
[1]    37305 abort      pkgutil --expand lifesaver-1.1.pkg ./lifesaver

Sometime you run in environment there you can't provide administrator user and password. For such environments you would use screensaver name.saver file to install it only for local user. This is I'm trying to unpack your wallpaper.

It might be fun to try to learn how hashlife works and implement it for even more optimization

I could reduce memory usage by sharing the SKTexture between all nodes. ?‍♂

With the optimization from #8, Life Saver could support even greater quantities of nodes, however the CPU bottleneck on launch for neighbor generation is huge. If I use the looping matrix from Ant Saver, it may greatly speed up neighbor generation.

I added option to change square size to very and super small.

Don't know why this wasn't included in preferences.

• Might be cool to expand the tvOS version with a full tvOS UI

Unlike the settings preset picker, the color preset picker seems unaware of which preset you're using on subsequent openings of the config sheet

Might be cool to have a setting that randomizes between color presets and/or setting presets

Learned a new thing this week, that you can significantly reduce memory usage and draw performance in SpriteKit by sharing an SKTexture between all similar nodes.

In the case of Life Saver, this means there's only one texture stored in memory. On launch, this results in a 50%+ reduction in memory usage... with the small square setting starting memory usage is ~94 MB. After this optimization, starting memory usage is ~44 MB.

Additionally, per-frame draw count goes from 576 down to 1. This is pretty amazing.

In this PR I also remove the debug label from nodes, it was using unneeded memory. I could have set a flag to toggle its generation but really it's not needed at this point.

Fixes #9

Uses toroidal matrix for neighbor generation. This results in an extremely significant speed increase in pre-fetching neighbors. On larger grids, neighbor generation could take nearly a minute, but with this change the same size grid it takes miliseconds. The code to actually grab the neighbors isn't the prettiest, but it works great!

This PR also adds the ability to create even smaller squares (for larger fields) which is now possible with decent performance thanks to #8 and this PR. Kind of a hidden feature for now.

Fixes #5

• Adds #6
• Adds swiftlint and makes it happy
• Runs swiftformat
• When "extra death" occurs fade color back to original bg color
• Fix bug with "extra death" animation on fast speed presets
• Add missing license blurbs
• Refactors how presets and settings interact through the manager
• adds version number to config sheet

• First version of Life Saver for tvOS
• Too many changes and additions to try to list

• Refactors logic in tvOS view controller to be a bit cleaner.
• Sets up animations to be cancelled and replaced better.

• Lowers the target tvOS version to 11.0 to support more users
• Built with Xcode 11 so I suppose it's "tvOS 13 ready"
• Some files for the tvOS build were in the wrong place somehow, they've been wrangled back into the right position

I think due to general bugginess with SpriteKit, there's some wonkiness with certain color combos or just in general. I see blocks switching their colors without fading in, stuff like that.

It might be cool if Life Saver TV integrated with Hue lights, changing hue lights around the TV to match the dominant colors on the television.

Might be cool if the random color preset option also changes the color preset every time a tank dies out...

I'm on macOS Mojave 10.14.5

It would be cool if a bloom effect could be added to living cells. If you use the "Noun Project" preset and squint from a distance it looks a bit like the effect in LIMBO, looks really cool. I tried a quick implementation using an SKEffectNode but handling all the fading and animations seems trickier than expected.