Touchscreen SR changes

[BenZeng04]

It is quite very clear that there are an incredible amount of things wrong with the pp computation with touchscreen, so I have developed SR changes for touchscreen that go into a very huge variety of skills.

Here is a summary of what will happen:
Aim Changes:
Angle is taken into account in a different way than it is currently. Back and forths get a very slight nerf while anything wider than back and forths will get a slight buff as angle increases. This buff will not increase linearly, as a 90 degree angle jump is arguably the same difficulty as a 180 degree angle one - you will hit one note with one hand, the other two with another.

Fast stacked notes, such as triples often require moving your other hand to press the X key, or TapX. This results in not being able to use this hand for a short amount of time, making aiming significantly harder for the next few notes. Notes after fast enough streams that are not stacked will get an aim boost.

Speed Changes:
Streams are currently extremely difficult with touchscreen, spaced streams being nearly impossible without simply singletapping all the notes in the stream. Not much to say about this change, but streams will be getting a big overall buff, as long as they are spaced enough, fast enough to be unsingletappable, and wide angle to prevent cheesing with multiple hands.

PP Changes:
See here

Misc. Changes:
Strain is calculated by adding current strain to note before the previous note, not the previous note itself. This puts a small nerf to large spacing diff spikes.

It is worth it to mention that touchscreen pp will never go above non-touchscreen due to a cap. This is to prevent manually detecting touchscreen for additional pp on stream maps.

[BenZeng04]

Now that quite a bit has changed, here is an updated version of what will happen:

Aim Changes:
It has been quite agreed upon that the original nerf - Aim Stars ^ 0.8 was quite harsh and led to nerfs of over 500pp in a single play. I have reduced this nerf to 0.86 instead of 0.8. Along with this, angle is taken into account in a very different way than it is currently. The current system buffs anything over 60 degrees which increases as angle increases, which does not make sense from the perspective of touchscreen. Instead, back and forths will get a nerf, while anything wider than around 20 degrees will get a buff as angle increases, until around 90 degrees, where the buff will stop increasing as much.

Fast stacked notes, such as triples often require moving your other hand to press the X key, or TapX. This results in not being able to use this hand for a short amount of time, making aiming significantly harder for the next few notes. Notes after fast enough streams that are not stacked will get an aim boost.

Speed Changes:
Streams are currently extremely difficult with touchscreen, spaced streams being nearly impossible with TapX, forcing you to singletap all the notes in the stream. Not much to say about this change, but streams will be getting a big overall buff, as long as they are spaced enough, fast enough to be unsingletappable, and wide angle to prevent cheesing with multiple hands.

Along with the stream buff, fast jumps are getting a nerf for speed pp, which means that high spacing will no longer award as much of a speed pp bonus as it does now. This is due to how high bpm DT maps such as ILY, Make a Move, and Unknown Title currently award significantly more pp than they should, relative to other touchscreen plays, simply due to the presence of fast jumps inflating the speed pp value. This will not nerf spaced streams at all, as the current stream buff will give an overwhelmingly bigger buff than this change would nerf to spaced streams.

PP Changes:
See here

[peppy]

Please stop merging master.

[BenZeng04]

Closing for now to work on a much more in depth version of the aim rebalance which focuses on something more than just angle.