things

TODO.md

@@ -2,18 +2,19 @@
 1. `grid.rs`
     - Remove need for `deposit`/`deposit_all`
       - Possible solution: Make it so when data is called, it generates it in a function when needed
-2. GPU compute 
+2. Add check to make sure that `img_data_vec` isn't over a set size in ram, if so, render it and flush to disk
+3. Auto create gif instead of doing that after the fact manually with imagemagick
+4. GPU compute 
     - Tried [ArrayFire-rust](https://github.com/arrayfire/arrayfire-rust) didn't work well, looking for another library
     - Try using [emu](https://github.com/calebwin/emu) (seems to be a very good option)
       - emu seems to be the way to go
       - May have to completely rewrite simulation to run on the gpu (that'll be fun *pain*)
-3. Auto create a video from generated images
+5. Auto create a video from generated images
     - Instead of using the command `ffmpeg -r 20 -i tmp/out_%d.png -vcodec libx265 -crf 25 -s 512x512 test.mp4` maybe use a rust library to do the same (more research needed)
-4. Live output
+6. Live output
-   - Might want to do after #3 ("Auto create a video from generated images")
+   - Might want to do after #5 and #3
-5. Make collisions for walls of grid
+7. Add config and cmd arguments when running the binary to adjust simulation settings7.
-6. Add config and cmd arguments when running the binary to adjust simulation settings7.
+8. sin and cos optimizations
-7. sin and cos optimizations
     - sin/cos table
       - precompute before simulation
     - Cache sin/cos values in hashmap to be recalled later

src/agent.rs

@@ -1,5 +1,5 @@
 use crate::{
-    grid::{Grid, PopulationConfig},
+    grid::Grid,
     util::wrap,
 };
 
@@ -40,18 +40,9 @@ impl Agent {
             i,
         }
     }
-
+    
     #[inline]
-    pub fn tick(&mut self, grid: &Grid) {
+    pub fn tick(&mut self, grid: &Grid, sensor_distance: f32, sensor_angle: f32, rotation_angle: f32, step_distance: f32, width: usize, height: usize) {
-        let (width, height) = (grid.width, grid.height);
-        let PopulationConfig {
-            sensor_distance,
-            sensor_angle,
-            rotation_angle,
-            step_distance,
-            ..
-        } = grid.config;
-
         let xc = self.x + cos(self.angle) * sensor_distance;
         let yc = self.y + sin(self.angle) * sensor_distance;
 

src/grid.rs

@@ -161,9 +161,22 @@ impl Grid {
 
     #[inline]
     pub fn tick(&mut self) {
-        let self_immutable = self.clone();
+        let (width, height) = (self.width, self.height);
+        let PopulationConfig {
+            sensor_distance,
+            sensor_angle,
+            rotation_angle,
+            step_distance,
+            ..
+        } = self.config;
+
+        let self_imut = self.clone(); // Create immutable copy of self before ticking agents (this is a very bad solution, needs to be improved)
+
         self.agents.par_iter_mut().for_each(|agent| {
-            agent.tick(&self_immutable);
+            agent.tick(&self_imut, 
+                sensor_distance, sensor_angle, 
+                rotation_angle, step_distance,
+                width, height);
         });
     }
 

src/main.rs

@@ -3,22 +3,23 @@ use physarum::model;
 fn main() {
     // # of iterations to go through
     // let n_iterations = 1024;
-    let n_iterations = 128;
+    let n_iterations = 2048;
 
     // Size of grid and pictures
-    // let (width, height) = (256, 256);
+    let (width, height) = (256, 256);
-    let (width, height) = (512, 512);
+    // let (width, height) = (512, 512);
     // let (width, height) = (1024, 1024);
 
     // # of agents
     // let n_particles = 1 << 10;
-    let n_particles = 1 << 16;
+    // let n_particles = 1 << 16;
+    let n_particles = 1 << 20;
     println!("n_particles: {}", n_particles);
 
     let diffusivity = 1;
 
     // `n_populations` is the # of types of agents
-    let n_populations = 1;
+    let n_populations = 4;
     // let n_populations = 3;
     // let n_populations = 1 + rng.gen_range(1..4); // make # of populations between 2 and 5