nbody_types.h File Reference

#include <cglm/types.h>
#include <stdbool.h>

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Data Structures
struct	NBodyParticle
	A single gravitational body. More...
struct	NBodyImpact
	Records a confinement boundary hit for visual effects. More...
struct	NBodySim
	State container for the N-body simulation. More...

Enumerations
enum	{ NBODY_MAX_BODIES = 32 }

Variables
static const float	NBODY_DEFAULT_G = 1.0F
static const float	NBODY_SOFTENING_SQ = 0.25F
static const float	NBODY_SOFTENING_FACTOR = 2.0F
static const float	NBODY_FIXED_DT = 1.0F / 120.0F
static const float	NBODY_MAX_ACCUMULATOR = 1.0F / 10.0F
static const float	NBODY_CONFINEMENT_RADIUS = 25.0F
static const float	NBODY_CONFINEMENT_K = 5.0F
static const float	NBODY_CONFINEMENT_DAMPING = 20.0F
static const float	NBODY_TIME_SCALE_RATE = 3.0F

Enumeration Type Documentation

anonymous enum

anonymous enum

Maximum number of bodies in the simulation.

Enumerator
NBODY_MAX_BODIES

Variable Documentation

NBODY_CONFINEMENT_DAMPING

const float NBODY_CONFINEMENT_DAMPING = 20.0F

static

Radial damping coefficient in the confinement zone.

NBODY_CONFINEMENT_K

const float NBODY_CONFINEMENT_K = 5.0F

static

Confinement stiffness

NBODY_CONFINEMENT_RADIUS

const float NBODY_CONFINEMENT_RADIUS = 25.0F

static

Confinement radius

NBODY_DEFAULT_G

const float NBODY_DEFAULT_G = 1.0F

static

Default gravitational constant (tuned for visual scale ~20 units).

NBODY_FIXED_DT

const float NBODY_FIXED_DT = 1.0F / 120.0F

static

Fixed physics timestep for stable integration (seconds).

NBODY_MAX_ACCUMULATOR

const float NBODY_MAX_ACCUMULATOR = 1.0F / 10.0F

static

Maximum accumulated physics time per call to nbody_step.

NBODY_SOFTENING_FACTOR

const float NBODY_SOFTENING_FACTOR = 2.0F

static

Per-pair softening multiplier.

NBODY_SOFTENING_SQ

const float NBODY_SOFTENING_SQ = 0.25F

static

Minimum softening factor squared — prevents singularity at r→0.

NBODY_TIME_SCALE_RATE

const float NBODY_TIME_SCALE_RATE = 3.0F

static

Rate at which time_scale transitions toward its target (units/s).