refactored code into methods

Cargo.toml

@@ -2,6 +2,11 @@
 name = "bubbles"
 version = "0.1.0"
 edition = "2021"
+authors = ["Jacob Janzen"]
+description = "Creates a procedurally generated image that sort of looks like bubbles"
+repository = "https://github.com/JacobJanzen/Bubbles/"
+license = "GPL-3.0"
+keywords = ["generative-art","gif"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

src/lib.rs

@@ -17,7 +17,7 @@ use std::vec;
 
 use clap::Parser;
 
-pub struct Gif {
+pub struct Image {
     pub height: u16,
     pub width: u16,
     pub frames: u16,
@@ -69,9 +69,9 @@ impl Args {
     }
 }
 
-impl Gif {
+impl Image {
     pub fn create_from_args(args: &Args) -> Self {
-        Gif {
+        Image {
             height: args.height,
             width: args.width,
             frames: args.frames,
@@ -83,27 +83,64 @@ impl Gif {
                 };
                 args.height as usize * args.width as usize
             ],
-            cross_distance: distance(
-                &Point { x: 0, y: 0 },
-                &Point {
-                    x: args.width - 1,
-                    y: args.height - 1,
-                },
-            ),
+            cross_distance: Point { x: 0, y: 0 }.distance(&Point {
+                x: args.width - 1,
+                y: args.height - 1,
+            }),
             points: generate_points(args.width, args.height, args.num_cells),
         }
     }
+
+    pub fn fill_canvas(&mut self) {
+        self.generate_noise();
+    }
+
+    fn generate_noise(&mut self) {
+        let mut max_dist = 0.0;
+
+        // Get distance and nearest point for each point on the canvas
+        for y in 0..self.height {
+            for x in 0..self.width {
+                let index = y as usize * self.width as usize + x as usize;
+                self.point_data[index] = PointData::get_point_data(self, Point { x, y });
+                max_dist = f64::max(max_dist, self.point_data[index].min_dist);
+            }
+        }
+
+        // normalize distances to [0,1]
+        for y in 0..self.height {
+            for x in 0..self.width {
+                let index = y as usize * self.width as usize + x as usize;
+                self.point_data[index].min_dist /= max_dist;
+            }
+        }
+
+        // write pixels
+        for y in 0..self.height {
+            for x in 0..self.width {
+                let index = y as usize * self.width as usize + x as usize;
+                let val = 0xFF - (0xFF as f64 * self.point_data[index].min_dist) as u8;
+                self.set_pixel(val, val, val, Point { x, y });
+            }
+        }
+    }
+
+    fn set_pixel(&mut self, r: u8, g: u8, b: u8, p: Point) {
+        self.pixels[3 * (self.width as usize * p.y as usize + p.x as usize)] = r;
+        self.pixels[3 * (self.width as usize * p.y as usize + p.x as usize) + 1] = g;
+        self.pixels[3 * (self.width as usize * p.y as usize + p.x as usize) + 2] = b;
+    }
 }
 
 impl PointData {
-    fn get_point_data(gif: &Gif, p: Point) -> Self {
+    fn get_point_data(image: &Image, p: Point) -> Self {
         let mut pd = PointData {
-            min_dist: gif.cross_distance,
+            min_dist: image.cross_distance,
             closest_point: Point { x: 0, y: 0 },
         };
 
-        for point in &gif.points {
-            let d = distance(&p, point);
+        for point in &image.points {
+            let d = p.distance(point);
             if d < pd.min_dist {
                 pd.min_dist = d;
                 pd.closest_point = point.clone();
@@ -114,42 +151,12 @@ impl PointData {
     }
 }
 
-pub fn fill_canvas(gif: &mut Gif) {
-    generate_noise(gif);
-}
+impl Point {
+    fn distance(&self, other: &Point) -> f64 {
+        let x_dist: f64 = other.x as f64 - self.x as f64;
+        let y_dist: f64 = other.y as f64 - self.y as f64;
 
-fn set_pixel(gif: &mut Gif, r: u8, g: u8, b: u8, x: u16, y: u16) {
-    gif.pixels[3 * (gif.width as usize * y as usize + x as usize)] = r;
-    gif.pixels[3 * (gif.width as usize * y as usize + x as usize) + 1] = g;
-    gif.pixels[3 * (gif.width as usize * y as usize + x as usize) + 2] = b;
-}
-
-fn generate_noise(gif: &mut Gif) {
-    let mut max_dist = 0.0;
-
-    // Get distance and nearest point for each point on the canvas
-    for y in 0..gif.height {
-        for x in 0..gif.width {
-            let index = y as usize * gif.width as usize + x as usize;
-            gif.point_data[index] = PointData::get_point_data(gif, Point { x, y });
-            max_dist = f64::max(max_dist, gif.point_data[index].min_dist);
-        }
-    }
-
-    // normalize distances to [0,1]
-    for y in 0..gif.height {
-        for x in 0..gif.width {
-            let index = y as usize * gif.width as usize + x as usize;
-            gif.point_data[index].min_dist /= max_dist;
-        }
-    }
-
-    for y in 0..gif.height {
-        for x in 0..gif.width {
-            let index = y as usize * gif.width as usize + x as usize;
-            let val = 0xFF - (0xFF as f64 * gif.point_data[index].min_dist) as u8;
-            set_pixel(gif, val, val, val, x, y)
-        }
+        (x_dist * x_dist + y_dist * y_dist).sqrt()
     }
 }
 
@@ -163,10 +170,3 @@ fn generate_points(width: u16, height: u16, num_cells: usize) -> Vec<Point> {
 
     points
 }
-
-fn distance(p1: &Point, p2: &Point) -> f64 {
-    let x_dist: f64 = p2.x as f64 - p1.x as f64;
-    let y_dist: f64 = p2.y as f64 - p1.y as f64;
-
-    (x_dist * x_dist + y_dist * y_dist).sqrt()
-}

src/main.rs

@@ -16,13 +16,13 @@ use std::fs::File;
 use std::process;
 
 use bubbles::Args;
-use bubbles::Gif;
+use bubbles::Image;
 
 fn main() {
     let args = Args::read();
 
     // create Gif data
-    let mut gif = Gif::create_from_args(&args);
+    let mut data = Image::create_from_args(&args);
 
     // Create encoder
     let mut image = File::create(args.out).unwrap();
@@ -34,8 +34,8 @@ fn main() {
     }
 
     // Create pixel array
-    bubbles::fill_canvas(&mut gif);
-    let frame = gif::Frame::from_rgb(gif.width, gif.height, &mut gif.pixels);
+    data.fill_canvas();
+    let frame = gif::Frame::from_rgb(data.width, data.height, &mut data.pixels);
 
     // Write frame to file
     encoder.write_frame(&frame).unwrap();