On 14/12/2010 16:14, Dilwyn Jones wrote:
Does anyone know of an extension to BASIC similar to PAUSE n which
does not return if a key is pressed. That is, a fixed pause.
Or anyone know how or ideas on how best to go about writing one? I
guess a suitable keyword name might be WAIT (just to get this
started - it wasn't listed in Rich Mellor's BASIC reference manual
anyway!)
I considered using job suspensions, but wasn't sure if this would
work the same on all systems - I want to introduce short timings
which are consistent on all systems and aren't affected by
keypresses, so the game can run at a vaguely consistent speed on
all systems.
Dilwyn Jones
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SUSPEND_TASK (turbo toolkit), SJOB -1,x (Tiny Toolkit) or
SUSJOB -1,x (Btool) will all suspend a task for a given number of
frames - although beware that these commands, as with PAUSE and
INKEY$ vary between 50Hz european machines and 60Hz US machines!
--
Rich Mellor
I had considered using something like that, but the best solution for
what I am trying to achieve would be an equivalent of INKEY$(n) where
a keyboard read and time delay could be combined such that the game
doesn't suddenly run faster when you press keys.
Any further ideas in that department, perhaps?
Simon Goodwin's DIY Toolkit has a TIMER set of commands, which can
work in units of 1/50 or 1/60 second. I guess an equivalent to what I
want could be written as a loop based on the timer, with a keyboard
read somewhere in the loop. But of course what happens if multiple
keypresses are made within the loop? Maybe that's why PAUSE and INKEY$
work as they do.
Dilwyn Jones
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