tick: simplify parameter passing

src/grid.rs

@@ -7,10 +7,10 @@ use std::fmt::{Display, Formatter};
 /// A population configuration.
 #[derive(Debug, Clone, Copy)]
 pub struct PopulationConfig {
-    sensor_distance: f32,
-    step_distance: f32,
-    sensor_angle: f32,
-    rotation_angle: f32,
+    pub sensor_distance: f32,
+    pub step_distance: f32,
+    pub sensor_angle: f32,
+    pub rotation_angle: f32,
 
     deposition_amount: f32,
 }
@@ -90,25 +90,8 @@ impl Grid {
     }
 
     pub fn tick(&mut self) {
-        let (width, height) = (self.width, self.height);
-        let PopulationConfig {
-            sensor_distance,
-            sensor_angle,
-            rotation_angle,
-            step_distance,
-            ..
-        } = self.config;
-
         self.agents.par_iter_mut().for_each(|agent| {
-            agent.tick(
-                &self.buf,
-                sensor_distance,
-                sensor_angle,
-                rotation_angle,
-                step_distance,
-                width,
-                height,
-            );
+            agent.tick(&self.buf, self.config, self.width, self.height);
         });
         self.deposit_all();
     }