I want to implement a game in Oz (a kind of Ping-Pong) with graphical
interface.
In my game, there is a ball that moves on a playground.
The graphical interface is implemented with QTk.
I have implemented the playground with a canvas an the ball is
represented a circle drawn on the canvas with the command "oval".
A thread updates the position of the ball every 10 or 20 ms.
The point is that the ball does not seem to move smoothly.
Sometime I can also see two balls on the playground (one at the old
position and one at the new position).
I was thinking about using double buffering to solve the "two position"
problem and maybe for speeding up the ball update process but I could
not find double buffering -related commands in QTk.
I know about process scheduling issues related with operating system
stuff and I know I do not get a 10 or 20 ms delay. Maybe I can do
something there, but what?
Any idea? Thank you.
--
Renaud De Landtsheer
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