moveNode(nodeId, x, y) {
    if (this.body.nodes[nodeId] !== undefined) {
      this.body.nodes[nodeId].x = Number(x);
      this.body.nodes[nodeId].y = Number(y);
      setTimeout(() => {
        this.body.emitter.emit("startSimulation");
      }, 0);
    } else {
      console.error(
        "Node id supplied to moveNode does not exist. Provided: ",
        nodeId
      );
    }
  }
Move a node.
@param {Node.id} nodeId
@param {number} x
@param {number} y