From 28df45da6745bc0e8b1693b420093b4d6b33dfc1 Mon Sep 17 00:00:00 2001
From: Stephan Rehfeld <stephan.rehfeld@th-nuernberg.de>
Date: Wed, 29 Apr 2026 17:38:52 +0200
Subject: [PATCH] Minimal example to show implementation of traits

---
 src/main.rs | 94 ++++++-----------------------------------------------
 1 file changed, 10 insertions(+), 84 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 8c560b1..c47cf07 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,91 +1,17 @@
-//#[derive(Copy, Clone)]
-struct RGB {
-    red: u8,
-    green: u8,
-    blue: u8,
+#[derive(Copy, Clone)]
+struct Vector3 {
+    x: f64,
+    y: f64,
+    z: f64,
 }
 
-impl RGB {
-    fn new(red: u8, green: u8, blue: u8) -> RGB {
-        RGB { red, green, blue }
-    }
-
-    fn black() -> RGB {
-        RGB::new(0, 0, 0)
-    }
-
-    fn white() -> RGB {
-        RGB::new(255, 255, 255)
-    }
-}
-
-struct Image {
-    width: usize,
-    height: usize,
-    data: Vec<RGB>,
-}
-
-impl Image {
-    fn new(width: usize, height: usize, data: Vec<RGB>) -> Image {
-        if width * height != data.len() {
-            panic!("Width and height of image does not match amount of data.");
-        }
-
-        let img = Image {
-            width,
-            height,
-            data,
-        };
-
-        img
-    }
-
-    fn white_image(width: usize, height: usize) -> Image {
-        let mut data = Vec::new();
-
-        for i in 0..width * height {
-            data.push(RGB::white());
-        }
-
-        Image::new(width, height, data)
-    }
-
-    fn get(&self, x: usize, y: usize) -> &RGB {
-        self.data.get(y * self.width + x).unwrap()
-    }
-
-    fn get_mut(&mut self, x: usize, y: usize) -> &mut RGB {
-        self.data.get_mut(y * self.width + x).unwrap()
-    }
-}
-
-struct Container<'a> {
-    value: &'a RGB,
-}
-
-impl<'a> Container<'a> {
-    fn new(value: &RGB) -> Container {
-        Container { value }
-    }
-}
-
-fn brighter<'a>(a: &'a RGB, b: &'a RGB) -> &'a RGB {
-    if a.red / 3 + a.green / 3 + a.blue / 3 > b.red / 3 + b.green / 3 + b.blue / 3 {
-        a
-    } else {
-        b
+impl Vector3 {
+    fn new(x: f64, y: f64, z: f64) -> Vector3 {
+        Vector3 { x, y, z }
     }
 }
 
 fn main() {
-    let image = Image::white_image(640, 480);
-
-    let black = RGB::black();
-
-    let c1 = image.get(0, 0);
-    //let c2 = image.get(1, 1);
-
-    let brightest = brighter(c1, &black);
-
-    println!("{}", brightest.red);
+    let vec1 = Vector3::new(1.0, 0.0, 0.0);
+    let vec2 = Vector3::new(0.0, 1.0, 0.0);
 }