1 files changed, 35 insertions, 2 deletions
diff --git a/src/global.rs b/src/global.rs
index 2f99cb9..b322746 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -3,8 +3,8 @@ use crate::calculus::calculus::Point3;
 
 
 // "Ideal" aspect ratio, allowing fraction
-pub const ASPECT_RATIO: f32 = 9.0f32 / 5.0f32;
-pub const IMG_WIDTH: usize = 1000;
+pub const ASPECT_RATIO: f32 = 16.0f32 / 9.0f32;
+pub const IMG_WIDTH: usize = 400;
 const IMG_HEIGHT_TMP: usize = (IMG_WIDTH as f32 / ASPECT_RATIO) as usize;
 pub const IMG_HEIGHT: usize = if (IMG_HEIGHT_TMP < 1) { 1 } else { IMG_HEIGHT_TMP };
 
@@ -28,6 +28,11 @@ impl Pixel {
             b: (255.999 * b) as u8,
         }
     }
+
+    pub fn from_color(color: &Color) -> Self {
+        let (r, g, b) = (color.r, color.g, color.b);
+        Self::from_frac(r, g, b)
+    }
 }
 
 impl Default for Pixel {
@@ -37,3 +42,31 @@ impl Default for Pixel {
 }
 
 pub type DisplayBuffer = [[Pixel; IMG_WIDTH]; IMG_HEIGHT];
+
+pub struct Color {
+    pub r: f32,
+    pub g: f32,
+    pub b: f32,
+}
+
+impl Color {
+    pub fn new(r: f32, g: f32, b: f32) -> Self {
+        Self { r, g, b }
+    }
+
+    pub fn mul_scalar(&self, scalar: f32) -> Color {
+        Self {
+            r: self.r * scalar,
+            g: self.g * scalar,
+            b: self.b * scalar,
+        }
+    }
+
+    pub fn add(&self, other: &Self) -> Color {
+        Self {
+            r: self.r + other.r,
+            g: self.g + other.g,
+            b: self.b + other.b
+        }
+    }
+}