CODEWITHSUNDEEP
javascriptarraysmatter.js
tamirp
tamirp

Reputation: 31

MatterJS remove object function

I'm working with matter.js on a small project, trying to add and remove objects from a matterjs world with js functions.

the add function seems to work, the remove method only works inside the adding function-

var boxes = [];

function addCircle(Cid, Ccolor, Cradius) {
    boxes[Cid] =  Bodies.circle((w/2), (h/2), Cradius, {
            density: 0.0005,
            frictionAir: 0.06,
            restitution: 0.3,
            friction: 0.01,
            render: { fillStyle: Ccolor, strokeStyle: 'rgba(0,0,0,0)',
            lineWidth: 0,
         }
        });
    boxes[Cid].angle = Math.random() * 0.5;
    boxes[Cid].force.y -= 0.0001;
    World.add(engine.world, boxes[Cid]);
    //World.remove(engine.world, boxes[Cid]);  <-- This one works
}


function removeCircle(Cid) {
    //console.log(boxes[Cid]);
    World.remove(engine.world, boxes[Cid]); // <-- This one doesn't
}

console shows error "Cannot read property 'type' of undefined" for the remove function. Can someone tell me how to solve this? Any help and suggestions will be really appreciable.

Upvotes: 3

Views: 1904

Answers (1)

martin
martin

Reputation: 96909

To remove a body from a world you need to use Composite.remove(...).

So in your case it'll be:

Composite.remove(engine.world, boxes[Cid]);

Upvotes: 2

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