Struct GravityParticle 

pub struct GravityParticle {
    pub x: Vec3,
    pub v: Vec3,
    pub f: Vec3,
    pub m: f64,
}

A massive particle subject to gravitational forces.

Fields

x: Vec3

Position (m).

v: Vec3

Velocity (m/s).

f: Vec3

Force accumulator (N).

m: f64

Mass (kg).

Implementations

impl GravityParticle

pub fn new(x: Vec3, v: Vec3, m: f64) -> Self

Create a new gravity particle.

pub fn reset_force(&mut self)

Reset force accumulator.

pub fn add_force(&mut self, f: Vec3)

Add force to accumulator.

pub fn velocity_verlet_step(&mut self, dt: f64)

Integrate using velocity Verlet (kick-drift-kick).

pub fn velocity_verlet_complete(&mut self, dt: f64)

Complete velocity Verlet after force recomputation.

pub fn kinetic_energy(&self) -> f64

Kinetic energy: 0.5 * m * v².

Trait Implementations

impl Clone for GravityParticle

fn clone(&self) -> GravityParticle

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GravityParticle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.