94 lines
2.2 KiB
Rust
94 lines
2.2 KiB
Rust
use crate::{
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model::{Model, Settings},
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solver::Solver,
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utils::*,
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};
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use nalgebra::ComplexField;
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use std::{collections::HashMap, marker::PhantomData};
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#[derive(Clone)]
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pub struct Point<T: Copy, const D: usize> {
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pub pos: Vect<T, D>,
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pub diffusion: Vect<T, D>,
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}
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#[derive(Clone)]
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pub struct Source<T: Copy, const D: usize> {
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pub amplitude: T,
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pub fonction: fn(T) -> Vect<T, D>,
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pub freq: T,
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pub phase: T,
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}
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pub struct Space<T: Copy, S: Settings, M: Model<T, S, D>, V: Solver<T, S, M, D>, const D: usize> {
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pub model: M,
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pub old_points: Vec<Point<T, D>>,
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pub points: Vec<Point<T, D>>,
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pub size: (usize, usize),
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pub solver: V,
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pub sources: HashMap<usize, Source<T, D>>,
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pub time: T,
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pub _p: PhantomData<S>,
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}
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impl<
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T: Copy + ComplexField<RealField = T>,
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S: Settings,
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M: Model<T, S, D>,
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V: Solver<T, S, M, D>,
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const D: usize,
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> Space<T, S, M, V, D>
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{
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pub fn simulate(&mut self, delta_time: T) {
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std::mem::swap(&mut self.old_points, &mut self.points);
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for (i, (point, old_point)) in self
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.points
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.iter_mut()
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.zip(self.old_points.iter())
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.enumerate()
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{
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if let Some(source) = self.sources.get(&i) {
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let t = self.time * source.freq + source.phase;
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//Point{pos:t.sin()*source.amplitude, speed: t.cos()*source.amplitude}
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point.pos = (source.fonction)(t) * source.amplitude;
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} else {
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*point = old_point.clone()
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};
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point.pos = self.solver.f(&self.model, point.pos);
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}
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let mut i = 0usize;
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for y in 0..self.size.1 {
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for x in 0..self.size.0 {
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let old_point = self.old_points[i].clone();
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let point = &mut self.points[i];
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if y > 0 {
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point.pos += (self.old_points[i - self.size.0].pos - old_point.pos)
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.component_mul(&point.diffusion)
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* delta_time;
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}
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if y < self.size.1 - 1 {
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point.pos += (self.old_points[i + self.size.0].pos - old_point.pos)
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.component_mul(&point.diffusion)
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* delta_time;
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}
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if x > 0 {
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point.pos += (self.old_points[i - 1].pos - old_point.pos)
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.component_mul(&point.diffusion)
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* delta_time;
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}
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if x < self.size.0 - 1 {
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point.pos += (self.old_points[i + 1].pos - old_point.pos)
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.component_mul(&point.diffusion)
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* delta_time;
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}
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i += 1;
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}
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}
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self.time += delta_time;
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}
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}
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