Remove slight divergence

src/main.rs

@@ -3,6 +3,7 @@ use std::fs::File;
 use std::io;
 use std::io::Write;
 use std::ops::Add;
+use std::path::PathBuf;
 use nd_array::Array;
 use rand::prelude::*;
 
@@ -22,7 +23,7 @@ struct Cli {
     seed: u64,
     max_particles: usize,
     stick_probability: f32,
-    csv_path: String,
+    csv_path: PathBuf,
 }
 
 fn main() {
@@ -38,6 +39,6 @@ fn main() {
         sys.update();
     }
 
-    sys.export_data()
+    sys.export_data(&cli.csv_path)
         .expect("Failed to write");
 }

src/system/model.rs

@@ -1,6 +1,7 @@
 use std::fs::File;
 use std::io::Write;
 use std::io;
+use std::path::Path;
 use rand::prelude::*;
 use crate::system::{DIM, Position};
 use crate::system::storage::{Storage, VectorStorage};
@@ -34,7 +35,7 @@ impl<R: Rng, S: Storage, W: Walker<R>> DLASystem<R, S, W> {
             max_particles,
             running: true,
 
-            storage: VectorStorage::new(1600, 2),
+            storage: VectorStorage::new(6000, 2),
             walker: LocalRandomWalker,
             particles: vec![],
             active_particle: None,
@@ -68,19 +69,19 @@ impl<R: Rng, S: Storage, W: Walker<R>> DLASystem<R, S, W> {
             .clone()
             .expect("No active particle");
 
-        if self.check_stick(current_position) {
-            self.deposit(current_position);
-            self.active_particle = None;
-            return;
-        }
-
         let next_position = self.walker.walk(&mut self.rng, current_position);
         let distance = next_position.abs();
 
         if distance > self.kill_circle {
             self.active_particle = None;
         } else if !self.storage.at(&next_position) {
-            self.active_particle.replace(next_position);
+            if self.check_stick(&next_position) {
+                self.deposit(&next_position);
+                self.active_particle = None;
+                return;
+            } else {
+                self.active_particle.replace(next_position);
+            }
         }
     }
 
@@ -123,8 +124,8 @@ impl<R: Rng, S: Storage, W: Walker<R>> DLASystem<R, S, W> {
         }
     }
 
-    pub fn export_data(&self) -> io::Result<()> {
-        let mut file = File::create("out.csv")?;
+    pub fn export_data(&self, path: &Path) -> io::Result<()> {
+        let mut file = File::create(path)?;
         writeln!(&mut file, "x, y")?;
 
         for particle in &self.particles {