use new draw function which covers bigger area

src/ant.rs

@@ -1,7 +1,6 @@
 use crate::constants::ANT_SPEED;
 use crate::constants::MAP_HEIGHT;
 use crate::constants::MAP_WIDTH;
-use crate::Drawable;
 use macroquad::prelude::*;
 use macroquad::rand::RandomRange;
 use std::f32::consts::PI;
@@ -43,19 +42,23 @@ impl Ant {
         }
         self.pos.x = self.pos.x.clamp(0., (MAP_WIDTH - 1) as f32);
         self.pos.y = self.pos.y.clamp(0., (MAP_HEIGHT - 1) as f32);
-
-        // TODO: change color over time
-        trail_map.set_pixel(self.pos.x as u32, self.pos.y as u32, RED);
     }
     fn sense(&self, trail_map: &mut Image) {
         trail_map.set_pixel(self.dir.sin() as u32, -self.dir.cos() as u32, YELLOW);
         trail_map.set_pixel(self.dir.sin() as u32, -self.dir.cos() as u32, YELLOW);
         trail_map.set_pixel(self.dir.sin() as u32, -self.dir.cos() as u32, YELLOW);
     }
-}
-
-impl Drawable for Ant {
-    fn draw(&self) {
-        //draw_circle(self.pos.x, self.pos.y, 1., WHITE);
+    // TODO: change color over time or based on other factors
+    pub(crate) fn draw(&self, trail_map: &mut Image) {
+        let radius: i32 = 3;
+        for x in -radius..radius {
+            for y in -radius..radius {
+                let x = (self.pos.x as i32 + x) as u32;
+                let y = (self.pos.y as i32 + y) as u32;
+                if x < (MAP_WIDTH - 1) && y < (MAP_HEIGHT - 1) {
+                    trail_map.set_pixel(x, y, RED);
+                }
+            }
+        }
     }
 }

src/constants.rs

@@ -1,3 +1,3 @@
-pub static ANT_SPEED: f32 = 200.;
+pub static ANT_SPEED: f32 = 20.;
 pub const MAP_WIDTH: u32 = 1280;
 pub const MAP_HEIGHT: u32 = 720;

src/food.rs

@@ -1,34 +0,0 @@
-use crate::Drawable;
-use macroquad::color::GREEN;
-use macroquad::math::Vec2;
-use macroquad::prelude::*;
-
-pub(crate) struct Food {
-    pos: Vec2,
-}
-
-#[allow(dead_code)]
-impl Food {
-    pub(crate) fn new(pos: Vec2) -> Self {
-        Food { pos }
-    }
-    #[rustfmt::skip]
-    pub(crate) fn init() -> Vec<Self> {
-        vec![
-            Food::new(Vec2::new(335., 75.)),
-            Food::new(Vec2::new(340., 75.)),
-            Food::new(Vec2::new(335., 80.)),
-            Food::new(Vec2::new(340., 80.)),
-            Food::new(Vec2::new(615., 195.)),
-            Food::new(Vec2::new(620., 195.)),
-            Food::new(Vec2::new(615., 200.)),
-            Food::new(Vec2::new(620., 200.)),
-        ]
-    }
-}
-
-impl Drawable for Food {
-    fn draw(&self) {
-        draw_circle(self.pos.x, self.pos.y, 1., GREEN);
-    }
-}

src/main.rs

@@ -2,7 +2,6 @@ extern crate macroquad;
 
 mod ant;
 mod constants;
-mod food;
 
 use crate::ant::Ant;
 use constants::{MAP_HEIGHT, MAP_WIDTH};
@@ -18,15 +17,11 @@ fn window_conf() -> Conf {
     }
 }
 
-trait Drawable {
-    fn draw(&self);
-}
-
 #[macroquad::main(window_conf)]
 async fn main() {
     //let map = load_texture("map_scaled.png").await.unwrap();
     let mut trail_map = Image::gen_image_color(MAP_WIDTH as u16, MAP_HEIGHT as u16, BLACK);
-    let mut ants = Ant::init(1024);
+    let mut ants = Ant::init(8);
 
     loop {
         // fade trails (doesnt really work)
@@ -41,8 +36,10 @@ async fn main() {
             }
         }
         // actions
-        ants.iter_mut()
-            .for_each(|ant| ant.walk(frame_time, &mut trail_map));
+        ants.iter_mut().for_each(|ant| {
+            ant.walk(frame_time, &mut trail_map);
+            ant.draw(&mut trail_map);
+        });
         if is_key_down(KeyCode::Escape) || is_quit_requested() {
             return;
         }
@@ -56,7 +53,6 @@ async fn main() {
         clear_background(BLACK);
         let texture = Texture2D::from_image(&trail_map);
         draw_texture(texture, 0., 0., WHITE);
-        ants.iter().for_each(|ant| ant.draw());
 
         next_frame().await
     }