For relative mouse movement in SDL, the `SDL_GetRelativeMouseState` function always returns distance that the mouse moved since the last call of this function.
For joysticks, we only have access to the current axis values and no accumulated values.
This made the relative joystick movement speed decrease a lot when the client's refresh rate is low.
This is now counteracted by measuring the average time between calls of `IInput::Update` and multiplying the joystick movement by this number.
Closes#6296.
Instead of considering diagonal hat inputs (e.g. up-left) as separate keys, consider them as inputs for both cardinal directions (e.g. up and left) at the same time.
This improves input with gamecontrollers that map the D-Pad to a joystick hat, as it was impossible with the previous handling to move with hat-left/right and jump with hat-up at the same time.
This means that diagonal hat buttons can no longer be used in binds, because they are no longer considered distinct buttons. It's unlikely that they would ever be useful in this game, as real joystick POV hats would not be used anyway.
Closes#6120.
Instead of closing the joysticks manually, use `SDL_QuitSubSystem(SDL_INIT_JOYSTICK)` to quit the entire subsystem, which will also close all joysticks correctly.
The engine input destructor is replaced with a `Shutdown` method so we can control when it is called, i.e. before calling `SDL_Quit`, which forcefully quits all subsystems.
`CJoystick::Close` is removed as we don't need to close joysticks manually anymore.
like ctrl-f / cmd-f
On macOS all these system shortcuts are done with cmd while on Windows
ctrl is used. Support both now
Added support for cmd key as modifier for binds
