Struct SPHSimulator 

pub struct SPHSimulator {
    pub h: f32,
    pub rest_density: f32,
    pub stiffness: f32,
    pub gamma: f32,
    pub viscosity: f32,
    pub surface_tension: f32,
    pub gravity: Vec3,
    /* private fields */
}

Simplified SPH solver tailored for the Chaos RPG game-layer fluid system.

Uses the cubic spline kernel from crate::physics::fluids, Tait equation of state for pressure, artificial viscosity, simple surface tension via colour-field gradient, and type-specific external forces (buoyancy, drag).

Fields

h: f32

Smoothing radius h.

rest_density: f32

Reference rest density.

stiffness: f32

Tait stiffness B.

gamma: f32

Tait gamma.

viscosity: f32

Base viscosity coefficient (multiplied by per-particle viscosity).

surface_tension: f32

Surface tension coefficient.

gravity: Vec3

Global gravity.

Implementations

impl SPHSimulator

pub fn new() -> Self

Create a new SPH simulator with default game parameters.

pub fn with_smoothing_radius(self, h: f32) -> Self

Create with a custom smoothing radius.

pub fn with_stiffness(self, b: f32) -> Self

Create with custom stiffness.

pub fn step(&mut self, particles: &mut [FluidParticle], dt: f32)

Run one full SPH step: rebuild grid, find neighbours, compute forces, integrate.

Trait Implementations

impl Default for SPHSimulator

fn default() -> Self

Returns the “default value” for a type.