polygonjs-engine
Version:
node-based webgl 3D engine https://polygonjs.com
72 lines (71 loc) • 1.98 kB
JavaScript
import {BaseMethod} from "./_Base";
import {Vector3 as Vector32} from "three/src/math/Vector3";
const VECTOR_NAMES = ["min", "max", "size", "center"];
const COMPONENT_NAMES = ["x", "y", "z"];
export class BboxExpression extends BaseMethod {
constructor() {
super(...arguments);
this._require_dependency = true;
}
static required_arguments() {
return [
["string", "path to node"],
["string", "vector name, min, max, size or center"],
["string", "component_name, x,y or z"]
];
}
find_dependency(index_or_path) {
return this.create_dependency_from_index_or_path(index_or_path);
}
process_arguments(args) {
let value = 0;
return new Promise(async (resolve, reject) => {
if (args.length >= 1) {
const index_or_path = args[0];
const vector_name = args[1];
const component_name = args[2];
let container = null;
try {
container = await this.get_referenced_node_container(index_or_path);
} catch (e) {
reject(e);
}
if (container) {
value = this._get_value_from_container(container, vector_name, component_name);
resolve(value);
}
} else {
resolve(0);
}
});
}
_get_value_from_container(container, vector_name, component_name) {
const bbox = container.boundingBox();
if (!vector_name) {
return bbox;
}
if (VECTOR_NAMES.indexOf(vector_name) >= 0) {
let vector = new Vector32();
switch (vector_name) {
case "size":
bbox.getSize(vector);
break;
case "center":
bbox.getCenter(vector);
break;
default:
vector = bbox[vector_name];
}
if (!component_name) {
return vector;
}
if (COMPONENT_NAMES.indexOf(component_name) >= 0) {
return vector[component_name];
} else {
return -1;
}
} else {
return -1;
}
}
}