KOG updated

The Blastaway code reuses most of the video system code I had written for my other games BOH, Huenison, and KOG. Along the way, I made some improvements to the system, and at some point I decided to backport those improvements to the older games. I started from KOG - and now I have just released a new version.
(If you're surprised that this release comes just one day after Blastaway's, don't be: yesterday I've been busy with releasing Blastaway, answering comments/emails about it, and also a few visits I've received for my birthday. The trick is that I worked on KOG last week, during the final testing phase of Blastaway.)

Trailer: https://www.youtube.com/watch?v=dn1AvxVurF4

Get KOG from https://www.retream.com/KOG - also this one is free ;)

CHANGELOG
* Simplified and optimized CRT filters.
* Added 6x zoom.
* Added hardware-accelerated zooming for solid pixel modes to AmigaOS version.
* Fixed rate of tune of shoot mode WILD.
* Removed click from menu tune.
* Fixed other sounds.
* Touched up manual.

@saimo

thanks for the update Simone !

You're welcome!

One more little update released: this one tries to address the issue of some joypads not being seen due to the fact that at times Windows reports D-pads as thumbsticks.

https://www.retream.com/KOG / https://retream.itch.io/kog

CHANGELOG
* Added support for thumbsticks, as at times Windows treats D-pads as thumbsticks (this is just to support as many joypads as possible: using real thumbsticks is not a good idea anyway).
* Fixed/improved manual.

@saimo

While updating Huenison I noticed that a bug in some versions of gcc could cause corrupted graphics and even memory faults. Although KOG didn't seem affected by that problem, I thought I'd better make sure - and, while at it, I also made a few more little changes.

CHANGELOG
* Reworked assignments of the kind *p++ = ... *p ... (as they are miscompiled by some versions of gcc).
* Removed assignment of function "back" to joypad first button (as that was confusing).
* Added Windows portable version.
* Worked on Windows installer: removed unused data directory; added logo to graphics.

Download: https://www.retream.com/KOG / https://retream.itch.io/kog

Lately work has been done in parallel on all the RETREAM games. It began with the objective of aligning the technically similar ones for PC so that they would handle data saving the same way, but it soon went out of control and brought uniformity and improvements to the installers, the documentation, the web pages and even to code and internal files -and, just as importantly, it brought new features as well!

Get the new version of KOG from https://retream.itch.io/kog / https://www.retream.com/KOG

CHANGELOG
* Added screenshots of internal graphics (now [F1] grab a screenshot of the internal graphics and [F2] of the visible graphics).
* Added [ALT]+[F4] quit option.
* Simplified data files access code.
* Set savedata directory to the game's own data directory also for the Windows installed version (which now is thus identical to the portable version).
* Moved configuration file to the program directory.
* Added to installers code to import previous savedata and clean up leftovers.
* Improved/extended manual.