Added better windows support and switched to blue rain

src/lib.rs

@@ -1,11 +1,18 @@
+use rand::Rng;
 
 pub const WIDTH: u32 = 400;
 pub const HEIGHT: u32 = 300;
 
+pub const PURPLE_BACKGROUND: &[u8] = &[0xd3, 0xb7, 0xf7, 0xff];
+pub const PURPLE_RAIN: &[u8] = &[207, 100, 219, 0xff];
+
+pub const BLUE_BACKGROUND: &[u8] = &[0x8f, 0xbe, 0xeb, 0xff];
+pub const BLUE_RAIN: &[u8] = &[0x3e, 0x9f, 0xfa, 0xff];
+
 pub fn draw(drops: &mut Vec<Drop>, frame: &mut [u8]) {
     let pixels = frame.chunks_exact_mut(4);
     for pixel in pixels {
-        pixel.copy_from_slice(&[0xd3, 0xb7, 0xf7, 0xff]);
+        pixel.copy_from_slice(BLUE_BACKGROUND);
     }
 
     drops.iter_mut().for_each(|d| d.update());
@@ -17,13 +24,14 @@ pub fn draw(drops: &mut Vec<Drop>, frame: &mut [u8]) {
                 if let Ok(i) = (y * (WIDTH as i32) * 4 + x * 4).try_into() {
                     if i < frame.len() {
                         drawn = true;
-                        frame[i..i + 4].copy_from_slice(&[207, 100, 219, 0xff]);
+                        frame[i..i + 4].copy_from_slice(BLUE_RAIN);
                     }
                 }
             }
         }
         if !drawn {
             drop.y = -drop.z;
+            drop.x = rand::thread_rng().gen_range(0..WIDTH as i32);
         }
     }
 }

src/main.rs

@@ -1,3 +1,5 @@
+#![windows_subsystem = "windows"]
+
 use chrono::Duration;
 use log::error;
 use pixels::{Pixels, SurfaceTexture};
@@ -44,7 +46,7 @@ fn main() {
             x: (rng.gen_range(0..WIDTH as i32)),
             y: (rng.gen_range(0..HEIGHT as i32)),
             z: ((rng.sample(rand_distr::Geometric::new(0.2).unwrap())+1) as i32),
-        })
+        });
     }
 
     let timer = Timer::new();