Struct SirGridModel 

pub struct SirGridModel;

The SIR epidemic as a GridModel.

Trait Implementations

impl Debug for SirGridModel

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

Formats the value using the given formatter.

impl GridModel for SirGridModel

const NAME: &'static str = "SIR Epidemic"

Name shown in the UI.

const ID: &'static str = "sir"

Stable id that identifies the model in a model set, on the command line and in a spec file.

const DESCRIPTION: &'static str = "Classic SIR compartmental model on a 2D grid with Moore neighborhood"

One-line description shown in the UI.

const PALETTE: &'static [[u8; 4]]

Cell colours, indexed by cell value.

const NEIGHBORHOOD: NeighborhoodKind = NeighborhoodKind::Moore

Neighbourhood whose cells Self::step_cell receives.

const STATS: &'static [StatDescriptor]

Stat series for the history chart. Declared once, so stats returns bare values.

const ACTIONS: &'static [ActionDescriptor] = ACTION_SPECS

One-off steps the user can trigger. Each gets a button in the Parameters panel.

type Params = SirParams

Hot parameters, extracted once per tick to keep enum matching out of the inner loop.

fn param_descriptors() -> Vec<ParamDescriptor>

Model parameters. The engine prepends grid width and height, but never shows them here.

fn from_params(params: &[ParamValue]) -> SirParams

Extracts the hot parameters for one tick. params is this model’s own slice, so its indices are 0 based.

fn init(grid: &mut Grid2D<u8>, params: &[ParamValue], rng: &mut u64)

Fills the grid for a new run.

fn step_cell( cell: u8, neighbors: &[u8], params: &SirParams, rng: &mut u64, ) -> u8

Returns the next value of cell, given its neighbours.

fn act( action: usize, grid: &mut Grid2D<u8>, params: &[ParamValue], rng: &mut u64, )

Runs Self::ACTIONS entry action over the current cells.

fn stats(grid: &Grid2D<u8>) -> Vec<StatValue>

Current statistics, in Self::STATS order.