uglymol/src/fromthree2.js

Macromolecular Viewer for Crystallographers

// @flow
// a small subset of THREE.js v83 that is used by UglyMol
// modified with eslint --fix and manually,
// LICENSE: threejs.org/license (MIT)


export class Vector2 {
  /*::
    x: number
    y: number
    isVector2: boolean
   */

  constructor(x/*:?number*/, y/*:?number*/) {
    this.x = x || 0;
    this.y = y || 0;
  }

  set( x/*:number*/, y/*:number*/ ) {
    this.x = x;
    this.y = y;
    return this;
  }

  clone() {
    return new Vector2( this.x, this.y );
  }

  copy( v/*:Vector2*/ ) {
    this.x = v.x;
    this.y = v.y;
    return this;
  }

  equals( v/*:Vector2*/ ) {
    return ( ( v.x === this.x ) && ( v.y === this.y ) );
  }
}

Vector2.prototype.isVector2 = true;