1 files changed, 110 insertions, 0 deletions
diff --git a/src/core/vector2.rs b/src/core/vector2.rs
new file mode 100644
index 0000000..ac70947
--- /dev/null
+++ b/src/core/vector2.rs
@@ -0,0 +1,110 @@
+use crate::{Float, Number};
+use std::ops::{Sub, Add};
+
+#[derive(Clone, Copy)]
+pub struct Vector2<T: Number> {
+    pub x: T,
+    pub y: T,
+}
+
+pub type Vector2f = Vector2<Float>;
+pub type Vector2i = Vector2<i32>;
+
+impl<T: Number> Vector2<T> {
+    pub fn new(initial: T) -> Vector2<T> {
+        Vector2 { x: initial, y: initial }
+    }
+
+    pub fn new_xy(x: T, y: T) -> Vector2<T> {
+        Vector2 { x, y }
+    }
+}
+
+impl<T: Number> Sub for Vector2<T> {
+    type Output = Self;
+    fn sub(self, op: Self) -> Self::Output {
+        Self::new_xy(
+            self.x - op.x,
+            self.y - op.y,
+        )
+    }
+}
+
+impl<T: Number> Add for Vector2<T> {
+    type Output = Self;
+    fn add(self, op: Self) -> Self::Output {
+        Self::new_xy(
+            self.x + op.x,
+            self.y + op.y,
+        )
+    }
+}
+
+impl Vector2f {
+    pub fn ceil(&self) -> Self {
+        Self::new_xy(
+            self.x.ceil(),
+            self.y.ceil()
+            )
+    }
+
+    pub fn floor(&self) -> Self {
+        Self::new_xy(
+            self.x.ceil(),
+            self.y.ceil()
+            )
+    }
+}
+
+impl From<Vector2i> for Vector2f {
+    fn from(v: Vector2i) -> Self {
+        Self {
+            x: v.x as Float,
+            y: v.y as Float,
+        }
+    }
+}
+
+impl From<Vector2f> for Vector2i {
+    fn from(v: Vector2f) -> Self {
+        Self {
+            x: v.x as i32,
+            y: v.y as i32,
+        }
+    }
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn new_vec2() {
+        let v = Vector2::new_xy(2.0, 10.0);
+
+        assert!(v.x == 2.0 && v.y == 10.0);
+
+        let v = Vector2::new(3);
+
+        assert!(v.x == 3 && v.y == 3);
+    }
+
+    #[test]
+    fn sub_vec2() {
+        let v1 = Vector2::new_xy(10, 11);
+        let v2 = Vector2::new_xy(2, 3);
+
+        let v3 = v1-v2;
+        assert!(v3.x == 8 && v3.y == 8);
+    }
+
+    #[test]
+    fn add_vec2() {
+        let v1 = Vector2::new_xy(10, 11);
+        let v2 = Vector2::new_xy(2, 3);
+
+        let v3 = v1+v2;
+        assert!(v3.x == 12 && v3.y == 14);
+    }
+}