Erratic behaviour, passing through bodies to the right.

[mulhoon]

Hi there.
I came across this bug when dragging things to the right hand side. As you can see when dragging something to the left everything is fine, but to the right it starts bouncing and then passes through the wall. Do you know what this might be?

Here is my code

    Demo.walls = function() {
        var _world = _engine.world;

        Demo.reset();

        World.add(_world, [
            Bodies.rectangle(300, 300, 10, 560, { isStatic: true }),
            Bodies.rectangle(500, 300, 10, 560, { isStatic: true })
            ]);

        World.add(_world, Bodies.circle(400, 100, 30));

        var renderOptions = _engine.render.options;
    };

Thanks for all your great work on matter.js, I find it very exciting.

[liabru]

This happens because continuous collision detection is not yet implemented.
That means given enough velocity / force, objects will pass through others especially if they are very thin. So you may need to use thicker walls for now, or create a custom constraint that limits the amount force you can apply (tricky unless you know what you're doing!).

See issue #5, so closing this one, thanks.

[mulhoon]

Ok thanks.
Looks like it is quite a big issue to solve.
Strange how it only happens on the right hand side though.

[liabru]

Yeah it's a complicated problem with a number of possible approaches.

I've looked into it and played with some ideas, but it's tricky to solve since it requires big modifications to the collision detector.

It should be the same on both sides, but it wouldn't surprise me if there's some strange reason why it's different.