Assign id to a physics.body

Questions
1

Hi there,

After a few months of feeling a little intimidated by codea, I’ve decided to gather some courage and tackle a little project.

Right now, I’m blocked at a little problem. I’m creating circles upon touches, no problem so far, an example shows exactly that. I’m now trying to do things with these individual circles, but I can’t figure out how to call them.

So here’s my first question: where and how to assign an Id to each individual object, so I can later do stuff with them? Somewhere there: circle = physics.body(CIRCLE, r) ?

Cheers!

2

You already did it. circle = physics.body(CIRCLE, r). Just use circle. to access it.

3

If you’re dealing with many circles, toss them circles into a table:

circles = {}
circle = physics.body(CIRCLE, r)
table.insert(circles, circle)

--then to access them you can use a for loop
for i,v in pairs(circles) do
    do stuff to circle using v as the circle and i as its index in the circles table
end
4

Oh of course! As often, it’s not technical difficulties or lack of knowledge that gets in the way, but rather poor imagination. Thank you so much! :slight_smile:

5

then you need to draw a circle over the physics body (because physics bodies are not visible), like

ellipse(circle.x,circle.y,r)