Create a *concave* physic body?

Games
#1

I’m guessing this can’t be done easily, but I thought I’d ask.

What I’d like to do is essentially create an arc that encompasses the bottom of a screen so that a ball could roll around in it. Sorta like:

. .
.. ..
.... ....
...............

I know this can be done by creating multiple trapezoidal physics bodies, but, being lazy, I’m trying to avoid that.

So, is there any way to create a single body that does what I need, or do I need to start drawing trapezoids?

Thanks,

Sean. [import]uid: 4993 topic_id: 6618 reply_id: 306618[/import]

#2

You’d have to draw multiple shapes, but that’s okay - you can easily do it with Gumbo. Search for forum for more posts about it, or just try it yourself:
Gumbo
A quick guide if you just want to create a shape as quickly as possible:

* Press the + to create a new object.
* Load an image to your object, if you want to use a reference (right pane)
* In the bottom of the same pane check “Enable physics” and set Polygon as Body Shape.
* Click “Edit Shape” and create your shapes
* Close the Shape Editor and click the Lua icon at the top. Done! [import]uid: 13180 topic_id: 6618 reply_id: 23027[/import]