Function countNodes

packages/backend/src/code.ts:40–53

(nodes: ReadonlyArray<SceneNode>)

  const MAX_NODE_COUNT_PREVIEW = 1200;
  const MAX_NODE_COUNT_HARD = 4000;
  const countNodes = (nodes: ReadonlyArray<SceneNode>) => {
    let count = 0;
    const stack = [...nodes];
    while (stack.length > 0) {
      const node = stack.pop()!;
      count += 1;
      if ("children" in node && Array.isArray(node.children)) {
        for (const child of node.children) {
          stack.push(child);
        }
      }
    }
    return count;
  };

  const nodeCount = countNodes(selection);
  if (nodeCount > MAX_NODE_COUNT_HARD) {