Fix

1 files changed, 55 insertions, 0 deletions

diff --git a/2026/games/rpc2dot0/src/math.rs b/2026/games/rpc2dot0/src/math.rs
new file mode 100644
index 0000000..555204f
--- /dev/null
+++ b/2026/games/rpc2dot0/src/math.rs
@@ -0,0 +1,55 @@
+pub use glam::Vec2;

+

+pub trait BoundingCircle {

+    fn center(&self) -> Vec2;

+    fn radius(&self) -> f32;

+

+    // Intersection between two bounding circles.

+    // compares squared distance to squared sum of radiuSUS (*insert mrGreen.png*),

+    // tl;dr: a naive collision detection.

+    fn overlaps_with(&self, other: &impl BoundingCircle) -> bool {

+        let radius_sum = self.radius() + other.radius();

+        self.center().distance_squared(other.center()) <= radius_sum * radius_sum

+    }

+}

+

+#[derive(Clone, Copy)]

+pub struct Rectangle {

+    pub min: Vec2,

+    pub max: Vec2,

+}

+

+pub trait ContainsPoint {

+    fn contains(&self, point: Vec2) -> bool;

+}

+

+impl ContainsPoint for Rectangle {

+    fn contains(&self, point: Vec2) -> bool {

+        point.cmpge(self.min).all() && point.cmple(self.max).all()

+    }

+}

+

+impl Rectangle {

+    pub const fn from_xywh(x: f32, y: f32, width: f32, height: f32) -> Self {

+        Self {

+            min: Vec2::new(x, y),

+            max: Vec2::new(x + width, y + height),

+        }

+    }

+

+    pub const fn from_min_max(min: Vec2, max: Vec2) -> Self {

+        Self { min, max }

+    }

+

+    #[allow(dead_code)]

+    pub fn overlaps(&self, other: &Rectangle) -> bool {

+        self.min.cmple(other.max).all() && self.max.cmpge(other.min).all()

+    }

+}

+

+pub fn parse_coords(coords: &str) -> (f32, f32) {

+    let mut parts = coords.split(',');

+    let x: f32 = parts.next().unwrap_or("0").parse().unwrap_or(0.0);

+    let y: f32 = parts.next().unwrap_or("0").parse().unwrap_or(0.0);

+    (x, y)

+}