vec2 everywhere

1 files changed, 59 insertions, 0 deletions

diff --git a/evc/src/vec2.rs b/evc/src/vec2.rs
new file mode 100644
index 0000000..ffee124
--- /dev/null
+++ b/evc/src/vec2.rs
@@ -0,0 +1,59 @@
+use crate::ser::{Ser, Sink, Source};
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Vec2 {
+    pub x: isize,
+    pub y: isize,
+}
+impl Vec2 {
+    pub const ZERO: Vec2 = Vec2 { x: 0, y: 0 };
+}
+
+impl Ser for Vec2 {
+    fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
+        sink.put((self.x, self.y))
+    }
+
+    fn read(source: &mut impl std::io::Read) -> anyhow::Result<Self> {
+        let (x, y) = source.get()?;
+        Ok(Vec2 { x, y })
+    }
+}
+
+impl std::ops::Add for Vec2 {
+    type Output = Vec2;
+    #[inline]
+    fn add(self, rhs: Self) -> Self::Output {
+        Vec2 {
+            x: self.x + rhs.x,
+            y: self.y + rhs.y,
+        }
+    }
+}
+impl std::ops::Sub for Vec2 {
+    type Output = Vec2;
+    #[inline]
+    fn sub(self, rhs: Self) -> Self::Output {
+        Vec2 {
+            x: self.x - rhs.x,
+            y: self.y - rhs.y,
+        }
+    }
+}
+impl std::ops::Mul for Vec2 {
+    type Output = Vec2;
+    #[inline]
+    fn mul(self, rhs: Self) -> Self::Output {
+        Vec2 {
+            x: self.x * rhs.x,
+            y: self.y * rhs.y,
+        }
+    }
+}
+
+impl From<(isize, isize)> for Vec2 {
+    #[inline]
+    fn from((x, y): (isize, isize)) -> Self {
+        Vec2 { x, y }
+    }
+}