Merge Stepik-777's video recording gsoc project

Starting to rewrite uFloat routines to avoid QWordValue - in the interests of JS which may get uint64/int64 in the spec in the future but does not have it now.

Merge

shutting the windows/pas2c build bot up: pas2c seems to fail parsing 'not' after a logical 'and' or 'or' (if no parenthesis)

Nerf X component a bit, allow knocks of nearby targets and upward kicks of overlapping

so unc0rr might replace this all. but anyway. fix copypasta.

shoppa hack, take... 4?

another shot in the dark. still w/ no input from shoppa players

shoppa hack guesses. continued. let's assume there's a small Y component.

another shot in the dark. let's assume they expect to control their direction as well. this might be the *wrong* direction...

hack for shoppa players, take 2. take into account sides, and a guess that a "slide" involves no upward movement

Hack to try and appease the shoppa players

reducing this value is sufficient to ensure crates drop just below top border or a girder

Fix throwing things off rope, also make throwing things a bit more generic and gear density dependent (so you can throw mines further, and also throw dynamite a little).

Allow escaping from tight spots

Disable workaround, as it still makes server crash and hung clients are hidden from players anyway

Ensure crates can spawn just below the border on a bordered map.

let's see if mikade will still accept this at least

make cheating a bit easier (mikade insisted). Also, try flipping dust for a bit more variety.

oops

Hey. How's this? It makes it harder to get stuck in the vertical rope position, prevents the wall trick, and also I think makes it easier to unglue a horizontal rope?

fromdos + fix end of turn velocity

An attempt to run main rope code only every 8th tick: - A big win for inner loop which is O(n^2) and thus it takes 64 times less cpu now. - Look and feel is almost identical (well, to my non-pro view) - Yes, the speed is limited to 7 px per accounting tick which is potentially very bad to collisions - Ruin shoppa

Move rope code to separate unit

Fix formatting, reduce border sensitivity

Hedgeroid: Fixed map preview again (might be a JNA bug)

also needs exclusion here

Hedgeroid improvements: - Moved frontlib initialization to a slightly better place - Added new JNA type ByteArrayPtr to move more JNA code into the frontlib package and to improve pointer type safety

Don't leave frontend in engine waiting state when there's error occured on attempt to start engine

Hedgeroid: Some code cleanup, adding a forgotten file