Finish depth of field

2 files changed, 19 insertions, 1 deletions

diff --git a/src/core/vector2.rs b/src/core/vector2.rs
index b3fa443..7e40394 100644
--- a/src/core/vector2.rs
+++ b/src/core/vector2.rs
@@ -2,7 +2,7 @@
 //!
 //! This is implemented generictly with types that fit in the Number trait
 use crate::{Float, Number};
-use std::ops::{Sub, Add};
+use std::ops::{Sub, Add, Mul};
 use std::fmt;
 use std::cmp::min;
 
@@ -45,6 +45,16 @@ impl<T: Number> Add for Vector2<T> {
     }
 }
 
+impl<T: Number> Mul<T> for Vector2<T> {
+    type Output = Self;
+    fn mul(self, op: T) -> Self::Output {
+        Self::new_xy(
+            self.x * op,
+            self.y * op,
+        )
+    }
+}
+
 impl<T: Number> fmt::Display for Vector2<T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_fmt(format_args!("[{}, {}]", self.x, self.y))
@@ -94,6 +104,12 @@ impl Vector2i {
     }
 }
 
+impl Vector2f {
+    pub fn len(&self) -> Float {
+        (self.x*self.x + self.y*self.y).sqrt()
+    }
+}
+
 
 #[cfg(test)]
 mod tests {
diff --git a/src/core/vector3.rs b/src/core/vector3.rs
index 1ae4db2..24b84e9 100644
--- a/src/core/vector3.rs
+++ b/src/core/vector3.rs
@@ -108,6 +108,8 @@ impl<T: Number> fmt::Display for Vector3<T> {
 }
 
 impl Vector3f {
+    pub const ZERO: Self = Vector3f {x: 0.0, y: 0.0, z: 0.0};
+
     /// Calculates the length times itself
     ///
     /// This is faster than using len * len as the square is ommited