Hello,
I’m trying to create a box object with an open end, so that it can hold another object.
I checked out the guide in physics bodies which was very helpful but when I try to change the angles to two 90degree angles it doesn’t like that at all.
{ 0,-35, 37,30, -37,30 } = triangle
{ 0,-90, 90,-0 } = attempt at open square, doesn’t like it
Not sure If I’m approaching this in the right way.
Can anyone help please 
It’s not entirely clear exactly what type of shape you’re trying to define, but…
Physics bodies should have area (or at least, most should) – your two-point line won’t, and certainly doesn’t form a “box” by any definition. Try thinking in terms of “block letters” - you’ll need to define the full _outline_ of a “L” or “U” or “V” (whichever shape you’re going for), which would respectively require 6, 8 or 6 vertices at least… IFF you could define them as a single body, but you can’t: you’ll need a multi-element body to prevent concavity. Think about two axis-oriented rectangles for an “L”, or three axis-oriented rectangles for a “U”, or two overlapping angled rectangles for a “V”.
fwiw, hth
Thanks!! The two 'L’s example makes it a bit clearer. I’ll give that a go.
It’s not entirely clear exactly what type of shape you’re trying to define, but…
Physics bodies should have area (or at least, most should) – your two-point line won’t, and certainly doesn’t form a “box” by any definition. Try thinking in terms of “block letters” - you’ll need to define the full _outline_ of a “L” or “U” or “V” (whichever shape you’re going for), which would respectively require 6, 8 or 6 vertices at least… IFF you could define them as a single body, but you can’t: you’ll need a multi-element body to prevent concavity. Think about two axis-oriented rectangles for an “L”, or three axis-oriented rectangles for a “U”, or two overlapping angled rectangles for a “V”.
fwiw, hth
Thanks!! The two 'L’s example makes it a bit clearer. I’ll give that a go.