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use std::path::PathBuf;
use force::{drag::Drag, gravity::Gravity};
use particle_system::{Particle, ParticleSystem, Point, Vector};
use ppm::PPM;
use solver::Solver;
mod constraint;
mod particle_system;
mod ppm;
mod solver;
mod force;
mod algebra;
fn main() {
let ppm = PPM {
width: 100,
height: 200,
prefix: PathBuf::from("./out"),
};
let dt = 0.01;
let mut system = ParticleSystem {
particles: vec![
Particle::new(Point::origin(), 4.0),
Particle::new(Point::new(-30.0, 0.0), 15.0),
Particle::new(Point::new(20.0, 0.0), 30.0),
Particle::new(Point::new(5.0, 20.0), 50.0),
],
constraints: vec![],
forces: vec![
Box::new(Gravity {
vector: Vector::y() * -9.8,
}),
Box::new(Drag { coefficient: 0.0 }),
],
t: 0.0,
};
system.add_anchor_constraint(0);
system.add_beam_constraint([0, 2]);
system.add_beam_constraint([1, 2]);
system.add_beam_constraint([1, 3]);
system.add_beam_constraint([2, 3]);
for i in 0..150_00 {
system.apply_forces();
if i % 10 == 0 {
println!("Iteration #{i}");
println!("{:#?}", system.particles);
ppm.save_frame(&system.particles, system.t);
}
system.enforce_constraints(dt);
system.step(dt);
}
}
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