Comments on: Lightning talk on hamster graphics lib @ GUADEC

By: Toms

Toms — Thu, 02 Sep 2010 11:05:28 +0000

dropped get_pointer and put back self.mouse_x and self.mouse_y. also on-mouse-up now is also giving the mouse event from it. updated the gist accordingly

By: Toms

Toms — Thu, 02 Sep 2010 00:14:00 +0000

regards whether arcs should be sprites or not – i think it will be easier for you just to keep track of connections and then draw the arcs in on-enter-frame. this is what is also happening in delaunay2 – the arc is an object, but it is not a sprite.

as regards to events i just added to functions that should make life easier – one is
sprite_at_position(x,y) which returns sprite under coordinates x and y.
the other one is get_pointer, which points to the underlying get_pointer.

the idea would be to find out sprite on mouse down and connect to the other one in on mouse up.
here is a litte gist for you:
http://gist.github.com/561610

btw, if you are looking for interaction ideas, be sure to check out waypoints, which is also in my github
http://github.com/tbaugis/waypoints

it’s also underconstruction.

and don’t be shy to share some code when you have any. drop a mail!

By: Steve

Steve — Wed, 01 Sep 2010 21:53:23 +0000

I am trying to write a simple flowchart diagram thing.

I was able to get nodes up with text. I can select and deselect the nodes. I only allow nodes to be draggable when selected.

I thought to create the arcs by doing a mouse-down in one node and then drag to the ending node.

I can’t quite figure how to capture the events to make this happen.

I also noticed that in your delaunay2 program, you create arcs as objects. If arcs can be both created and deleted, should I subclass sprite for them also?

Thanks for the great library! Hope you don’t mind the questions.

By: Toms

Toms — Tue, 03 Aug 2010 19:41:23 +0000

Thanks and no worries, i won’t hold my breath

By: mac

mac — Tue, 03 Aug 2010 19:27:57 +0000

Consider it done! (I will however send you the link to the code repo once online, so you can also see if I used the library as they were intended to! . I will start working again on that half-way project on the16th of August though, so don’t expect questions/feedback before 3 or 4 weeks.

By: Toms

Toms — Tue, 03 Aug 2010 16:35:22 +0000

Glad to hear! Drop a mail if you have any questions. I have yet not received any feedback about the quality of the documentation nor the tutorial – is it understandable, am i maybe jumping forward too fast? Stuff like that.

By: mac

mac — Tue, 03 Aug 2010 15:24:58 +0000

Cool stuff, I’m actually considering using it for a small project later this month. Great thing you provided the tutorial… thanks!