ts-ritofile/src/structures/vector.ts

TypeScript library for reading and writing League of Legends game file formats

import { JsonSerializable } from '../core/json-encoder';

export class Vector implements JsonSerializable {
  public x: number;
  public y: number;
  public z?: number;
  public w?: number;

  constructor(x: number, y: number, z?: number, w?: number) {
    this.x = x;
    this.y = y;
    this.z = z;
    this.w = w;
  }

  static lerp(vec1: Vector, vec2: Vector, weight: number): Vector {
    if (weight < 0.005) return vec1;
    if (weight > 0.995) return vec2;
    
    // Python version only handles 3D vectors for lerp
    return new Vector(
      vec1.x + (vec2.x - vec1.x) * weight,
      vec1.y + (vec2.y - vec1.y) * weight,
      vec1.z! + (vec2.z! - vec1.z!) * weight
    );
  }

  toString(): string {
    let result = `${this.x.toFixed(4)} ${this.y.toFixed(4)}`;
    if (this.z !== undefined) result += ` ${this.z.toFixed(4)}`;
    if (this.w !== undefined) result += ` ${this.w.toFixed(4)}`;
    return result;
  }

  toArray(): number[] {
    const result = [this.x, this.y];
    if (this.z !== undefined) result.push(this.z);
    if (this.w !== undefined) result.push(this.w);
    return result;
  }

  __json__(): number[] {
    return this.toArray();
  }

  // Keep toJSON for standard JavaScript compatibility
  toJSON(): number[] {
    return this.__json__();
  }
}