diff --git a/src/bin/maze/main.rs b/src/bin/maze/main.rs
index fb92add..f3f7903 100644
--- a/src/bin/maze/main.rs
+++ b/src/bin/maze/main.rs
@@ -9,9 +9,9 @@ use rand::Rng;
 
 use pixelfoo::color::Color;
 use pixelfoo::p2;
-use pixelfoo::point2::Point2;
+use pixelfoo::point2d::Point2d;
 use pixelfoo::v2;
-use pixelfoo::vec2::Vec2;
+use pixelfoo::vec2d::Vec2d;
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 enum Square {
@@ -41,7 +41,7 @@ fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
 }
 
 impl Board {
-    fn new(board_size: Vec2, maze_size: Vec2) -> Board {
+    fn new(board_size: Vec2d, maze_size: Vec2d) -> Board {
         Board(
             (0..board_size.y)
                 .map(move |y| {
@@ -67,21 +67,21 @@ impl Board {
                 .collect::<Vec<_>>(),
         )
     }
-    fn get(&self, pos: Point2) -> Square {
+    fn get(&self, pos: Point2d) -> Square {
         self.0[pos.y as usize][pos.x as usize]
     }
-    fn set(&mut self, pos: Point2, sq: Square) {
+    fn set(&mut self, pos: Point2d, sq: Square) {
         self.0[pos.y as usize][pos.x as usize] = sq;
     }
 }
 
 struct Move {
-    from: Point2,
-    dir: Vec2,
+    from: Point2d,
+    dir: Vec2d,
     prio: i32,
 }
 
-fn add_move(open: &mut Vec<Move>, arg: isize, from: Point2, dir: Vec2) {
+fn add_move(open: &mut Vec<Move>, arg: isize, from: Point2d, dir: Vec2d) {
     open.push(Move { from, dir, prio: 0 });
     open.sort_unstable_by(|Move { prio: pa, .. }, Move { prio: pb, .. }| pa.cmp(pb));
 }
@@ -164,7 +164,7 @@ fn main() -> std::io::Result<()> {
                 board.set(p1, Square::Corridor);
                 board.set(p2, Square::Corridor);
 
-                for dir1 in Vec2::directions() {
+                for dir1 in Vec2d::directions() {
                     let p3 = p2 + dir1;
                     let p4 = p3 + dir1;
                     if board.get(p3) == Square::Unknown {
diff --git a/src/lib.rs b/src/lib.rs
index 0fc4680..7d91fa8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,5 @@
 pub mod color;
 #[macro_use]
-pub mod point2;
+pub mod point2d;
 #[macro_use]
-pub mod vec2;
+pub mod vec2d;
diff --git a/src/point2.rs b/src/point2.rs
deleted file mode 100644
index 452839a..0000000
--- a/src/point2.rs
+++ /dev/null
@@ -1,66 +0,0 @@
-use std::ops::Add;
-
-use crate::vec2::Vec2;
-
-#[macro_export]
-macro_rules! p2 {
-    ( $x:expr, $y:expr ) => {
-        Point2::new($x, $y)
-    };
-}
-
-#[derive(Clone, Copy, Debug)]
-pub struct Point2 {
-    pub x: i32,
-    pub y: i32,
-}
-
-impl Point2 {
-    pub fn new(x: i32, y: i32) -> Point2 {
-        Point2 { x, y }
-    }
-
-    pub fn neighbours(&self) -> Vec<Point2> {
-        Vec2::directions().iter().map(|v| self + v).collect()
-    }
-}
-
-impl Add<Vec2> for Point2 {
-    type Output = Point2;
-
-    fn add(self, other: Vec2) -> Point2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Point2 { x, y }
-    }
-}
-
-impl<'a> Add<&'a Vec2> for Point2 {
-    type Output = Point2;
-
-    fn add(self, other: &'a Vec2) -> Point2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Point2 { x, y }
-    }
-}
-
-impl<'a> Add<Vec2> for &'a Point2 {
-    type Output = Point2;
-
-    fn add(self, other: Vec2) -> Point2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Point2 { x, y }
-    }
-}
-
-impl<'a> Add<&'a Vec2> for &'a Point2 {
-    type Output = Point2;
-
-    fn add(self, other: &'a Vec2) -> Point2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Point2 { x, y }
-    }
-}
diff --git a/src/point2d.rs b/src/point2d.rs
new file mode 100644
index 0000000..f8cf343
--- /dev/null
+++ b/src/point2d.rs
@@ -0,0 +1,66 @@
+use std::ops::Add;
+
+use crate::vec2d::Vec2d;
+
+#[macro_export]
+macro_rules! p2 {
+    ( $x:expr, $y:expr ) => {
+        Point2d::new($x, $y)
+    };
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct Point2d {
+    pub x: i32,
+    pub y: i32,
+}
+
+impl Point2d {
+    pub fn new(x: i32, y: i32) -> Point2d {
+        Point2d { x, y }
+    }
+
+    pub fn neighbours(&self) -> Vec<Point2d> {
+        Vec2d::directions().iter().map(|v| self + v).collect()
+    }
+}
+
+impl Add<Vec2d> for Point2d {
+    type Output = Point2d;
+
+    fn add(self, other: Vec2d) -> Point2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Point2d { x, y }
+    }
+}
+
+impl<'a> Add<&'a Vec2d> for Point2d {
+    type Output = Point2d;
+
+    fn add(self, other: &'a Vec2d) -> Point2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Point2d { x, y }
+    }
+}
+
+impl<'a> Add<Vec2d> for &'a Point2d {
+    type Output = Point2d;
+
+    fn add(self, other: Vec2d) -> Point2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Point2d { x, y }
+    }
+}
+
+impl<'a> Add<&'a Vec2d> for &'a Point2d {
+    type Output = Point2d;
+
+    fn add(self, other: &'a Vec2d) -> Point2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Point2d { x, y }
+    }
+}
diff --git a/src/rect2d.rs b/src/rect2d.rs
new file mode 100644
index 0000000..0a1db40
--- /dev/null
+++ b/src/rect2d.rs
@@ -0,0 +1,4 @@
+pub struct Rect2d {
+    origin: Point2d,
+    size: Vec2d,
+}
diff --git a/src/vec2.rs b/src/vec2.rs
deleted file mode 100644
index 06fdb36..0000000
--- a/src/vec2.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use std::ops::Add;
-
-#[macro_export]
-macro_rules! v2 {
-    ( $x:expr, $y:expr ) => {
-        Vec2::new($x, $y)
-    };
-}
-
-#[derive(Clone, Copy, Debug)]
-pub struct Vec2 {
-    pub x: i32,
-    pub y: i32,
-}
-
-impl Vec2 {
-    pub fn new(x: i32, y: i32) -> Vec2 {
-        Vec2 { x, y }
-    }
-
-    pub fn directions() -> Vec<Vec2> {
-        vec![v2!(1, 0), v2!(0, 1), v2!(-1, 0), v2!(0, -1)]
-    }
-}
-
-impl Add for Vec2 {
-    type Output = Vec2;
-
-    fn add(self, other: Vec2) -> Vec2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Vec2 { x, y }
-    }
-}
-
-impl<'a> Add<&'a Vec2> for Vec2 {
-    type Output = Vec2;
-
-    fn add(self, other: &'a Vec2) -> Vec2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Vec2 { x, y }
-    }
-}
-
-impl<'a> Add<Vec2> for &'a Vec2 {
-    type Output = Vec2;
-
-    fn add(self, other: Vec2) -> Vec2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Vec2 { x, y }
-    }
-}
-
-impl<'a> Add<&'a Vec2> for &'a Vec2 {
-    type Output = Vec2;
-
-    fn add(self, other: &'a Vec2) -> Vec2 {
-        let x = self.x + other.x;
-        let y = self.y + other.y;
-        Vec2 { x, y }
-    }
-}
diff --git a/src/vec2d.rs b/src/vec2d.rs
new file mode 100644
index 0000000..23ec55a
--- /dev/null
+++ b/src/vec2d.rs
@@ -0,0 +1,64 @@
+use std::ops::Add;
+
+#[macro_export]
+macro_rules! v2 {
+    ( $x:expr, $y:expr ) => {
+        Vec2d::new($x, $y)
+    };
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct Vec2d {
+    pub x: i32,
+    pub y: i32,
+}
+
+impl Vec2d {
+    pub fn new(x: i32, y: i32) -> Vec2d {
+        Vec2d { x, y }
+    }
+
+    pub fn directions() -> Vec<Vec2d> {
+        vec![v2!(1, 0), v2!(0, 1), v2!(-1, 0), v2!(0, -1)]
+    }
+}
+
+impl Add for Vec2d {
+    type Output = Vec2d;
+
+    fn add(self, other: Vec2d) -> Vec2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Vec2d { x, y }
+    }
+}
+
+impl<'a> Add<&'a Vec2d> for Vec2d {
+    type Output = Vec2d;
+
+    fn add(self, other: &'a Vec2d) -> Vec2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Vec2d { x, y }
+    }
+}
+
+impl<'a> Add<Vec2d> for &'a Vec2d {
+    type Output = Vec2d;
+
+    fn add(self, other: Vec2d) -> Vec2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Vec2d { x, y }
+    }
+}
+
+impl<'a> Add<&'a Vec2d> for &'a Vec2d {
+    type Output = Vec2d;
+
+    fn add(self, other: &'a Vec2d) -> Vec2d {
+        let x = self.x + other.x;
+        let y = self.y + other.y;
+        Vec2d { x, y }
+    }
+}