When triggering buttons on the virtual gamepad, the down and up events
are sent on release. That's a leftover from the previous virtual gamepad
which didn't allow to select the buttons easily.
On the new virtual gamepad, the button choice is better so we can
trigger a button down as soon as the finger is on it.
This fixes a bug in some AGS games which missed the button press because
the release was sent too soon.
Fixes Trac#15444.
- Use a SVG asset to allow for better scalability
- Make the controller visible when touching the screen
- Allow for oblique moving by placing finger between two directions
- Add more buttons on the center area of the screen (GUIDE, START, LEFT
STICK, RIGHT STICK) and simplify right area (only four buttons)
- Don't track all fingers, only the ones needed
- Cleanup now unused code
Le Philousophe
Hubert Maier
Paweł Kołodziejski
Eugene Sandulenko