import { DELTA_RATIO, VELOCITY_RATIO } from './constants'
import { IDelta, IMovable, IPosition } from './types'

export function longToNumber(arr: number[]) {
  return arr[1] + 4294967296 * arr[0]
}

export function round(val: number, precision: number = 1) {
  const pow = Math.pow(10, precision)
  return Math.round((val + Number.EPSILON) * pow) / pow
}

export function dist2(from: IPosition, to: IPosition) {
  const x = from.x - to.x
  const y = from.y - to.y
  const z = from.z - to.z
  return (x * x) + (y * y) + (z * z)
}

export function applyVelocity(movable: IMovable) {
  movable.x += (movable.velocityX / VELOCITY_RATIO)
  movable.y += (movable.velocityY / VELOCITY_RATIO)
  movable.z += (movable.velocityZ / VELOCITY_RATIO)
}

export function applyDelta(movable: IMovable, delta: IDelta) {
  movable.x += (delta.dX / DELTA_RATIO)
  movable.y += (delta.dY / DELTA_RATIO)
  movable.z += (delta.dZ / DELTA_RATIO)
}