Wiimote: Reconnect a disconnected Wiimote when a button is pressed.

[AdmiralCurtiss]

This reconnects an emulated Wiimote to the emulator when a key or button mapped to one of the Wiimote's buttons is pressed, similar to how a real Wiimote attempts to connect to the last known Wii when you push something on it. Mainly fixes the inconvenience of having to manually press Reconnect Wiimote after a few minutes of inactivity.

Still has a problem at the moment where a single button press can send multiple "reconnect me!" requests (presumably due to the update frequency of Wiimotes being higher than a typical game's framerate) which can freeze up the emulator for a second but technically works.

[AdmiralCurtiss]

Okay, if someone wants to test this now, go for it, as far as I can tell it works as it should.

Implementation notes:

• I'm using a m_last_connect_request_counter variable to limit the frequency of reconnection requests by counting down the amount of times a Wiimote is polled after we send a request to be reconnected but before we actually are reconnected. It's only a few frames at most, but if I don't limit this somehow, you see multiple "Wiimote 1 Connected" OSD messages, which isn't very nice.
• g_controller_interface.UpdateInput() was previously only called when at least one Wiimote was actually connected. Since I need to listen to input from disconnected Wiimotes to see when they want to be reconnected, it is now always called. As such, I was able to pull it out of Wiimote::Update() and get rid of that structure with the static variable that checks if we are in a new "input cycle", and put it into CWII_IPC_HLE_Device_usb_oh1_57e_305::Update() instead, where Wiimote::Update() is called from.

[AdmiralCurtiss]

And here is the same thing for real Wiimotes, too!

[JMC47]

Behavior is fine, everything works just like a Real Wii with connecting emulated Wiimotes now (at least, the same as it would be for a synced Wiimote.)

My only issue is that it never lets the user know when a Wiimote is forcefully disconnected, but, honestly? That isn't really worth blocking and was already an issue in the emulator.

LGTM.

[AdmiralCurtiss]

FYI, the notification about a Wiimote being disconnected should probably be added around here. Different PR territory though since getting a userfriendly message out of that seems harder than expected.

[mimimi085181]

This is working nicely with my real wiimote. I can reconnect on Metroid Prime Trology and the Wii Sports resort WM+ video just fine. Reconnecting after a timeout works fine as well(only tested in Resident Evil 4).

I can't say anything about the implementation though, it's a bit over my head.

[JMC47]

Is this still WIP? It came here to kick ass and chew bubble gum, and it's all out of ass. Seriously though, I tested it, I love it, this is the best thing ever made.

[AdmiralCurtiss]

Nah this is done, unless someone really wants reconnect-on-extension-press too.

[mimimi085181]

Hm, reconnect on classic controller button press might be nice. Not sure about the rest of the extensions, like guitars and whatnot.

[BhaaLseN]

We can always throw another PR for that; I'd rather get that merged sooner than later