Timer Tick

I'm working on a simple bouncy ball app... all I want is a little
Ellipse to bounce around the window hitting each edge and bouncing the
other way. In Windows Forms I would have used a timer, set to 50ms and
on each frame i'd set the location of the Ellipse to a new spot. I
understand now that there's timelines for this sort of thing, but this
just seems to be for a animation with no logic. All I want to do is set
the ball to a new location and animate it bouncing around. Any
recommendations on how to do this?

- Ben Friedland

You can check this one out.Seems to fit what you are looking for.

http://thewpfblog.com/?p=24

But you might need to open it with EID instead of VS2005. I have
modified it slightly myself. Let me know if you have any problem.




On Oct 13, 2:25 am, "ben...@gmail.com" <ben...@gmail.com> wrote:
> I'm working on a simple bouncy ball app... all I want is a little
> Ellipse to bounce around the window hitting each edge and bouncing the
> other way. In Windows Forms I would have used a timer, set to 50ms and
> on each frame i'd set the location of the Ellipse to a new spot. I
> understand now that there's timelines for this sort of thing, but this
> just seems to be for a animation with no logic. All I want to do is set
> the ball to a new location and animate it bouncing around. Any
> recommendations on how to do this?
>
> - Ben Friedland

You can still use a timer if you want.

If you want to render per frame, like in DX, you use the
CompositionTargert.Render event to get called per frame. This feature should
be used when you need to apply physics or collision detection on objects, and
your animations are very quick.

You could use the animation engine to move your object around, but doing
during a mouse move seems to quick for me...and I would use frame based
animation.

If you are new to WPF, I would recommend getting a book on it. Trying to
learn via blogs may not be helpful because a lot of the community is past the
learning phase, and you will get much more complicated samples which won't
make any sense without learning the basics first.

Petzold book can be bought, and Adam Nathan and Chris Anderson's book will
be released shortly. I think all 3 of these book take a different approach to
teaching the material. It's all good stuff..including the SDK which has a lot
of nice samples and Overview reading - including a nice sample on frame based
animation



"ben174@gmail.com" wrote:

> I'm working on a simple bouncy ball app... all I want is a little
> Ellipse to bounce around the window hitting each edge and bouncing the
> other way. In Windows Forms I would have used a timer, set to 50ms and
> on each frame i'd set the location of the Ellipse to a new spot. I
> understand now that there's timelines for this sort of thing, but this
> just seems to be for a animation with no logic. All I want to do is set
> the ball to a new location and animate it bouncing around. Any
> recommendations on how to do this?
>
> - Ben Friedland
>
>

Thanks for the reply szelee and TheRHogue. This will surely get me
started.

- Ben Friedland

My only worry about buying a book right now is it seems that WPF is
changing dramatically with each beta (CTP, etc.). But... I suppose
you're right... learning off examples is a lot more difficult.

Thanks,
Ben Friedland


TheRHogue wrote:
> You can still use a timer if you want.
>
> If you want to render per frame, like in DX, you use the
> CompositionTargert.Render event to get called per frame. This feature should
> be used when you need to apply physics or collision detection on objects, and
> your animations are very quick.
>
> You could use the animation engine to move your object around, but doing
> during a mouse move seems to quick for me...and I would use frame based
> animation.
>
> If you are new to WPF, I would recommend getting a book on it. Trying to
> learn via blogs may not be helpful because a lot of the community is past the
> learning phase, and you will get much more complicated samples which won't
> make any sense without learning the basics first.
>
> Petzold book can be bought, and Adam Nathan and Chris Anderson's book will
> be released shortly. I think all 3 of these book take a different approach to
> teaching the material. It's all good stuff..including the SDK which has a lot
> of nice samples and Overview reading - including a nice sample on frame based
> animation
>
>
>
> "ben174@gmail.com" wrote:
>
> > I'm working on a simple bouncy ball app... all I want is a little
> > Ellipse to bounce around the window hitting each edge and bouncing the
> > other way. In Windows Forms I would have used a timer, set to 50ms and
> > on each frame i'd set the location of the Ellipse to a new spot. I
> > understand now that there's timelines for this sort of thing, but this
> > just seems to be for a animation with no logic. All I want to do is set
> > the ball to a new location and animate it bouncing around. Any
> > recommendations on how to do this?
> >
> > - Ben Friedland
> >
> >

Those changes have slowed down almost to a complete stop now. As far as I
know, WPF is being locked down for RTM with Vista.

- Doug

<ben174@gmail.com> wrote in message
news:1160761143.113649.192410@m73g2000cwd.googlegroups.com...
> My only worry about buying a book right now is it seems that WPF is
> changing dramatically with each beta (CTP, etc.). But... I suppose
> you're right... learning off examples is a lot more difficult.
>
> Thanks,
> Ben Friedland
>
>
> TheRHogue wrote:
>> You can still use a timer if you want.
>>
>> If you want to render per frame, like in DX, you use the
>> CompositionTargert.Render event to get called per frame. This feature
>> should
>> be used when you need to apply physics or collision detection on objects,
>> and
>> your animations are very quick.
>>
>> You could use the animation engine to move your object around, but doing
>> during a mouse move seems to quick for me...and I would use frame based
>> animation.
>>
>> If you are new to WPF, I would recommend getting a book on it. Trying to
>> learn via blogs may not be helpful because a lot of the community is past
>> the
>> learning phase, and you will get much more complicated samples which
>> won't
>> make any sense without learning the basics first.
>>
>> Petzold book can be bought, and Adam Nathan and Chris Anderson's book
>> will
>> be released shortly. I think all 3 of these book take a different
>> approach to
>> teaching the material. It's all good stuff..including the SDK which has a
>> lot
>> of nice samples and Overview reading - including a nice sample on frame
>> based
>> animation
>>
>>
>>
>> "ben174@gmail.com" wrote:
>>
>> > I'm working on a simple bouncy ball app... all I want is a little
>> > Ellipse to bounce around the window hitting each edge and bouncing the
>> > other way. In Windows Forms I would have used a timer, set to 50ms and
>> > on each frame i'd set the location of the Ellipse to a new spot. I
>> > understand now that there's timelines for this sort of thing, but this
>> > just seems to be for a animation with no logic. All I want to do is set
>> > the ball to a new location and animate it bouncing around. Any
>> > recommendations on how to do this?
>> >
>> > - Ben Friedland
>> >
>> >
>