polygonjs-engine/dist/src/engine/nodes/utils/states/TimeDependent.js

node-based webgl 3D engine https://polygonjs.com

import {BaseState} from "./Base";
export class TimeDependentState extends BaseState {
  active() {
    return this.are_params_time_dependent() || this.are_inputs_time_dependent();
  }
  are_params_time_dependent() {
    const param_names = this.node.params.names;
    for (let param_name of param_names) {
      const param = this.node.params.get(param_name);
      if (param && param.states.time_dependent.active()) {
        return true;
      }
    }
    return false;
  }
  are_inputs_time_dependent() {
    const inputs = this.node.io.inputs.inputs();
    for (let input of inputs) {
      if (input && input.states.time_dependent.active()) {
        return true;
      }
    }
    return false;
  }
  force_time_dependent() {
    const predecessor_ids = this.node.graphPredecessors().map((n) => n.graphNodeId());
    const frame_node = this.node.scene().timeController.graph_node;
    if (!predecessor_ids.includes(frame_node.graphNodeId())) {
      this.node.addGraphInput(frame_node, false);
    }
  }
  unforce_time_dependent() {
    const frame_node = this.node.scene().timeController.graph_node;
    this.node.removeGraphInput(frame_node);
  }
}