mistakes were fixed and sins were committed

src/layout/vec2.rs

@@ -2,7 +2,7 @@ use crate::{
     layout::UiNum,
     util::{DivOr, impl_op},
 };
-use std::{marker::Destruct, ops::*};
+use std::{hash::Hash, marker::Destruct, ops::*};
 
 #[repr(C)]
 #[derive(Clone, Copy, PartialEq, Default, bytemuck::Pod, bytemuck::Zeroable)]
@@ -11,6 +11,15 @@ pub struct Vec2 {
     pub y: f32,
 }
 
+impl Eq for Vec2 {}
+
+impl Hash for Vec2 {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        state.write_u32(self.x.to_bits());
+        state.write_u32(self.y.to_bits());
+    }
+}
+
 pub const fn vec2(x: impl const UiNum, y: impl const UiNum) -> Vec2 {
     Vec2::new(x.to_f32(), y.to_f32())
 }