struct Particle:
    x: f32
    y: f32
    vx: f32
    vy: f32

hot fn update(steps: usize) -> f32:
    var ps := soa Array[Particle, 20000]
    for i in 0..20000:
        (trust ps[i]).x = f32(i) * 0.1
        (trust ps[i]).y = f32(i) * 0.2
        (trust ps[i]).vx = 1.0
        (trust ps[i]).vy = 2.0

    for step in 0..steps:
        for i in 0..20000:
            (trust ps[i]).x = (trust ps[i]).x + (trust ps[i]).vx
            (trust ps[i]).y = (trust ps[i]).y + (trust ps[i]).vy

    var total: f32 = 0.0
    for i in 0..20000:
        total += (trust ps[i]).x
    return total

fn main():
    print(update(2000))