Re: Re: H5550 Joypad Improvements

Hi,

I was using GPE. I found that diagonals worked OK on the application
browser part of GPE, and in various applications such as the text editor
and terminal. However, some games did not react well to the two scan codes
produced by diagonal presses, such as tetris and the one where gems are
pushed around (the name escapes me).

I'm not sure if some convention for the order of scan codes for diagonal
presses exists, but the order used by the driver is a little
counter-intuitive. It reads them in the order it looks through the keys
after the look-up table:
up, right, left, down, action

So left-down would produce "left" then "down".
Left-up would produce "up" then "left".

My conclusion was that the user can learn to use the joypad well enough
with 8 directions, but it may be subject to personal taste. Ultimately,
applications designed for use on a PDA should be able to cope with
diagonal inputs as many PDAs have 8-way joypads and it would be a shame to
remove that functionality. However, as things currently stand, the 4-way
option is probably the best bet.

Robin

<quote who="Erik Hovland">
> Robin Emery <R.A.Emery <at> newcastle.ac.uk> writes:
>> There was also an issue with diagonals - I've found that the joypad is
>> quite useable if the driver registers them, but some programs do not
>> react
>> well to them because they are implemented as two key presses.
>
> I forgot to ask, what graphical environment were you using? Diagonals are
> a
> serious pain in opie-reader.
>
> E
>
>
>
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-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
Stage IV MEng Computer Systems Engineering
School of Electrical, Electronic and Computer Engineering,
University of Newcastle Upon Tyne
You can also contact me at: Robin.Emery_at_gmail.com
Received on Wed Feb 01 2006 - 05:17:15 EST