pop done

src/asteroids.rs

@@ -89,7 +89,7 @@ impl Asteroid {
                 AsteroidSize::Medium => 1.2,
                 AsteroidSize::Small => 0.8,
             },
-            WHITE,
+            Color::new(1., 1., 1., 0.5),
         );
     }
 }

src/main.rs

@@ -16,11 +16,21 @@ async fn main() {
         ..Default::default()
     };
     set_camera(&cam);
-    let mut pop = Population::new(5);
+    let mut pop = Population::new(100);
+    let mut speedup = false;
     loop {
         clear_background(BLACK);
+        if is_key_pressed(KeyCode::S) {
+            speedup = !speedup;
+        }
+        if speedup {
+            for _ in 0..100 {
+                pop.update();
+            }
+        } else {
             pop.update();
             pop.draw();
+        }
         next_frame().await
     }
     // let mut world = World::new();

src/player.rs

@@ -14,11 +14,12 @@ pub struct Player {
     last_shot: f32,
     shot_interval: f32,
     pub brain: Option<NN>,
-    search_radius: f32,
-    proximity_asteroids: Vec<f32>,
+    asteroids_data: Vec<f32>,
     max_asteroids: usize,
     debug: bool,
     alive: bool,
+    pub lifespan: u32,
+    pub shots: u32,
 }
 
 impl Player {
@@ -30,7 +31,6 @@ impl Player {
             // Change scaling when passing inputs if this is changed
             drag: 0.001,
             shot_interval: 0.3,
-            search_radius: 300.,
             alive: true,
             debug: false,
             ..Default::default()
@@ -50,8 +50,11 @@ impl Player {
     }
 
     pub fn check_player_collision(&mut self, asteroid: &mut Asteroid) -> bool {
-        self.proximity_asteroids
-            .extend([asteroid.pos.x, asteroid.pos.y, asteroid.radius]);
+        self.asteroids_data.extend([
+            asteroid.pos.x / screen_width() + 0.5,
+            asteroid.pos.y / screen_height() + 0.5,
+            asteroid.radius / 50.,
+        ]);
         if asteroid.check_collision(self.pos, 8.) {
             self.alive = false;
             return true;
@@ -71,10 +74,11 @@ impl Player {
     }
 
     pub fn update(&mut self) {
+        self.lifespan += 1;
         let mut mag = 0.;
         let mut keys = vec![false, false, false, false];
 
-        self.proximity_asteroids.resize(self.max_asteroids, 0.);
+        self.asteroids_data.resize(self.max_asteroids, 0.);
         let mut inputs = vec![
             self.pos.x / screen_width() + 0.5,
             self.pos.y / screen_height() + 0.5,
@@ -82,7 +86,7 @@ impl Player {
             self.vel.y / 11.,
             self.rot / TAU as f32,
         ];
-        inputs.append(self.proximity_asteroids.as_mut());
+        inputs.append(self.asteroids_data.as_mut());
         if let Some(brain) = &self.brain {
             keys = brain
                 .feed_forward(inputs)
@@ -105,6 +109,7 @@ impl Player {
         if is_key_down(KeyCode::Space) || keys[3] {
             if self.shot_interval + self.last_shot < get_time() as f32 {
                 self.last_shot = get_time() as f32;
+                self.shots += 1;
                 self.bullets.push(Bullet {
                     pos: self.pos + self.dir.rotate(vec2(20., 0.)),
                     vel: self.dir.rotate(vec2(8.5, 0.)) + self.vel,
@@ -151,7 +156,7 @@ impl Player {
         }
 
         if self.debug {
-            for a in self.proximity_asteroids.chunks(3) {
+            for a in self.asteroids_data.chunks(3) {
                 draw_circle_lines(a[0], a[1], a[2], 1., GRAY);
                 draw_line(self.pos.x, self.pos.y, a[0], a[1], 1., GRAY)
             }

src/population.rs

@@ -14,7 +14,7 @@ impl Population {
         Self {
             size,
             worlds: (0..size)
-                .map(|_| World::simulate(NN::new(vec![33, 10, 4])))
+                .map(|_| World::simulate(NN::new(vec![33, 16, 4])))
                 .collect(),
             ..Default::default()
         }
@@ -30,6 +30,7 @@ impl Population {
         }
         if !alive {
             self.gen += 1;
+            println!("{}", self.gen);
             self.next_gen();
         }
     }
@@ -50,18 +51,19 @@ impl Population {
     }
 
     pub fn next_gen(&mut self) {
-        let total = self.worlds.iter().fold(0, |acc, x| acc + x.score);
-        self.worlds.sort_by(|a, b| b.score.cmp(&a.score));
-        let mut new_worlds = (0..self.size / 10)
-            .map(|i| World::simulate(self.worlds[i].see_brain().to_owned()))
-            .collect::<Vec<_>>();
+        let total = self.worlds.iter().fold(0., |acc, x| acc + x.fitness());
+        // self.worlds.sort_by(|a, b| b.fitness().cmp(&a.fitness()));
+        let mut new_worlds = Vec::new();
+        // (0..self.size / 10)
+        //     .map(|i| World::simulate(self.worlds[i].see_brain().to_owned()))
+        //     .collect::<Vec<_>>();
 
         while new_worlds.len() < self.size {
-            let rands = (gen_range(0, total + 1), gen_range(0, total + 1));
-            let mut sum = 0;
+            let rands = (gen_range(0., total), gen_range(0., total));
+            let mut sum = 0.;
             let (mut a, mut b) = (None, None);
             for world in &self.worlds {
-                sum += world.score;
+                sum += world.fitness();
                 if sum >= rands.0 {
                     a = Some(world.see_brain());
                 }

src/world.rs

@@ -35,6 +35,16 @@ impl World {
         self.player.brain.as_ref().unwrap()
     }
 
+    pub fn fitness(&self) -> f32 {
+        self.score as f32
+            + self.player.lifespan as f32 * 0.01
+            + if self.player.shots > 0 {
+                self.score as f32 / self.player.shots as f32 * 10.
+            } else {
+                0.
+            }
+    }
+
     pub fn update(&mut self) {
         self.player.update();
         let mut to_add: Vec<Asteroid> = Vec::new();