ft: 2.3: debug log

src/main.rs

@@ -1,10 +1,16 @@
+use log::info;
+use pretty_env_logger;
+
 fn main() {
+    pretty_env_logger::init();
+
     let image_width = 256;
     let image_height = 256;
 
     let mut imgbuf = image::ImageBuffer::new(image_width, image_height);
 
     for j in 0..image_height {
+        info!("{}\tScanlines remaining.", (image_height - j));
         for i in 0..image_width {
             let r = i as f32 / (image_width - 1) as f32;
             let g = j as f32 / (image_height - 1) as f32;
@@ -19,5 +25,6 @@ fn main() {
         }
     }
 
+    info!("Writing image file...");
     imgbuf.save("output.png").unwrap();
 }