@react-three/p2/src/worker/material.ts

2D physics based hooks for react-three-fiber

import { type MaterialOptions, Material } from 'p2-es'

export type CreateMaterial = (nameOrOptions?: MaterialOptions | number) => Material

let materialId = 0

export const createMaterialFactory =
  (materials: Record<number, Material>): CreateMaterial =>
  (nameOrOptions = {}) => {
    const materialOptions = typeof nameOrOptions === 'number' ? { id: nameOrOptions } : { ...nameOrOptions } //name: Symbol.for(`Material${materialId++}`),
    const { id = materialId++ } = materialOptions
    materials[id] = materials[id] || new Material(id)
    return materials[id]
  }