Standard Library

Standard Library

std/ ships pure PWE modules — no privileged runtime hooks. Each exposes functions keyed by namespaced physical constants you can override with --param on the same artifact.

Import them like Python modules:

import "std/forces"
import "std/robotics" as rb
from "std/math" import sqrt

Modules

Module	Contents
std/math	Numeric helpers, sqrt, clamp, interpolation, constants.
std/particles	Particle emission and lifecycle helpers.
std/forces	Springs, damping, drag, applied forces as accelerations.
std/mechanics	Rigid-body mechanics helpers.
std/chemistry	Full periodic table (Z = 1–118), Arrhenius, kinetics, pH.
std/thermal	Newton cooling, Stefan–Boltzmann, conduction, radiative cooling.
std/acoustics	Sound pressure level, Doppler, propagation.
std/optics	Beer–Lambert attenuation, Fresnel, refraction.
std/em	Coulomb, Lorentz force, cyclotron, Poynting vector.
std/robotics	Forward/inverse kinematics, PID, differential drive.
std/units	Unit literals and conversions for [m/s^2]-style annotations.
std/control	Control-system building blocks (setpoints, feedback).

Example

world {
  gravity = (0, 0, 0)
  entity body { state = (x = 1.0, vx = 0.0, temp = 353.15) }
}
systems {
  update { on = body; dt = 0.1
    vx   = forces.spring_accel(2.0, x, 1.0) + forces.damping_accel(0.3, vx, 1.0) + 0.0
    temp = thermal.radiative_cooling(temp, 293.15, 0.9, 1.0, 1.0, 700.0) + 0.0
  }
}

Because a module is PWE source, you can read std/*.pwe directly — there is no hidden native layer. Standard-library behavior is covered by the test suite alongside the runtime and language tests.

See also: The PWE Language · Examples