Btw-- the "canvas" field isn't the only
way to avoid throwing around gpointers.
Here's a quick pacman vector animation where I just animate by
changing the
attributes of the drawing instruction. Since it's all vector
drawings I can scale pacman
to any size I wish without it becoming pixelated:
I guess the next step is to make pacman eat those objects as he
moves over them.
-Jonathan
On 09/02/2015 02:29 PM, jamal crawford wrote:
hey list, Jonathan.
You start with a struct:[struct foo float x float y canvas
a b]
Then create a scalar from this struct.
The scalar will have an "x" value, a "y" value, and a
canvas "a" which gets filled with the contents of an
abstraction "b.pd" that is somewhere in Pd's search path.
Now here's the neat thing-- inside the newly instantiated
"b.pd" you can do this:
[loadbang]|[field x]|[print x]
imagine you have a drawing instruction like this:[draw rect 0 0 20 20]
When you create the scalar you get a little black box on a canvas.
With a canvas field like I described, you can right-click the scalar and choose "Open" to show a canvas window.
while trying to create [struct foo float x float y canvas a
b], i get: canvas: no such type, using pd 0.46.6
what am I missing?
~/.jc